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Evolutionary analysis suggested that accessory proteins are more conservative locating before the N-terminal of proteins E and M (E-M), while they are more diverse after these proteins. Furthermore, comparison of virus-host interaction networks of SARS-CoV-2 and SARS-CoV accessory proteins showed that they share multiple antiviral signaling pathways, those involved in the apoptotic process, viral life cycle and response to oxidative stress. In summary, our study provides a tool for coronavirus genome annotation and builds a comprehensive profile for coronavirus accessory proteins covering their composition, classification, evolutionary pattern and host interaction.Over the last decade, genome-wide association studies (GWAS) have discovered thousands of genetic variants underlying complex human diseases and agriculturally important traits. These findings have been utilized to dissect the biological basis of diseases, to develop new drugs, to advance precision medicine and to boost breeding. However, the potential of GWAS is still underexploited due to methodological limitations. Many challenges have emerged, including detecting epistasis and single-nucleotide polymorphisms (SNPs) with small effects and distinguishing causal variants from other SNPs associated through linkage disequilibrium. These issues have motivated advancements in GWAS analyses in two contrasting cultures-statistical modelling and machine learning. In this review, we systematically present the basic concepts and the benefits and limitations in both methods. We further discuss recent efforts to mitigate their weaknesses. Additionally, we summarize the state-of-the-art tools for detecting the missed signals, ultrarare mutations and gene-gene interactions and for prioritizing SNPs. Our work can offer both theoretical and practical guidelines for performing GWAS analyses and for developing further new robust methods to fully exploit the potential of GWAS.
Hereditary factors play a key role in the risk of developing several cancers. Identification of a germline predisposition can have important implications for treatment decisions, risk-reducing interventions, cancer screening, and germline testing.
To examine the prevalence of pathogenic germline variants (PGVs) in patients with cancer using a universal testing approach compared with targeted testing based on clinical guidelines and the uptake of cascade family variant testing (FVT).
This prospective, multicenter cohort study assessed germline genetic alterations among patients with solid tumor cancer receiving care at Mayo Clinic cancer centers and a community practice between April 1, 2018, and March 31, 2020. https://www.selleckchem.com/products/ly2606368.html Patients were not selected based on cancer type, disease stage, family history of cancer, ethnicity, or age.
Germline sequencing using a greater than 80-gene next-generation sequencing platform.
Proportion of PGVs detected with a universal strategy compared with a guideline-directed approach on guidelines. Nearly 30% of patients with high-penetrance variants had modifications in their treatment. Uptake of cascade FVT was low despite being offered at no cost.
This prospective, multicenter cohort study found that universal multigene panel testing among patients with solid tumor cancer was associated with an increased detection of heritable variants over the predicted yield of targeted testing based on guidelines. Nearly 30% of patients with high-penetrance variants had modifications in their treatment. Uptake of cascade FVT was low despite being offered at no cost.This systematic review aimed to evaluate the effectiveness and safety of probiotics for glycemic control in adults with impaired glucose control, including prediabetes and type 2 diabetes mellitus (T2DM). We searched PubMed, Embase, and Cochrane databases, and trial registries up to February 2019. We included randomized controlled trials (RCTs) of participants with prediabetes or T2DM. Eligible trials compared probiotics versus either placebo, no intervention, or comparison probiotics, or compared synbiotics versus prebiotics. Primary outcomes were mean change in fasting blood glucose (FBG) and glycated hemoglobin (HbA1c) from baseline to short term (130 mg/dL and those not receiving insulin therapy than their counterparts. Probiotics were also effective in lowering serum cholesterol over the short and long term. In conclusion, we found that probiotics may have a glucose-lowering effect in T2DM participants. The effect appeared to be stronger in participants with poorly controlled diabetes and those not on insulin therapy. Systematic review registration CRD42019121682.Metallo-β-lactamases (MBLs) hydrolyze a wide range of β-lactam antibiotics. While all MBLs share a common αβ/βα-fold, there are many other proteins with the same folding pattern that exhibit different enzymatic activities. These enzymes, together with MBLs, form the MBL superfamily. Thermotoga maritima tRNase Z, a tRNA 3' processing endoribonuclease of MBL-superfamily, and IMP-1, a clinically isolated MBL, showed a striking similarity in tertiary structure, despite low sequence homology. IMP-1 hydrolyzed both total cellular RNA and synthetic small unstructured RNAs. IMP-1 also hydrolyzed pre-tRNA, but its cleavage site was different from those of T. maritima tRNase Z and human tRNase Z long form, indicating a key difference in substrate recognition. Single-turnover kinetic assays suggested that substrate-binding affinity of T. maritima tRNase Z is **** higher than that of IMP-1.Glatiramer acetate (GA) is approved for the treatment of multiple sclerosis (MS). However, the mechanism of action of GA in MS is still unclear. In particular, it is not known whether GA can modulate the pro-inflammatory Th17-type immune response in MS. We investigated the effects of original GA (Copaxone®, Teva, Israel) and generic GA (Timexone®, Biocad, Russia) on Th17- and Th1-type cytokine production in vitro in 25 patients with relapsing-remitting MS and 25 healthy subjects. Both original and generic GA at concentrations 50-200 μg/ml dose-dependently inhibited interleukin-17 and interferon-γ production by anti-CD3/anti-CD28-activated peripheral blood mononuclear cells from MS patients and healthy subjects. This effect of GA was reproduced using purified CD4+ T cells, suggesting that GA can directly modulate the functions of Th17 and Th1 cells. At high concentrations (100-200 μg/ml), GA also suppressed the production of Th17-differentiation cytokines (interleukin-1β and interleukin-6) by lipopolysaccharide (LPS)-activated dendritic cells (DCs).
Evolutionary analysis suggested that accessory proteins are more conservative locating before the N-terminal of proteins E and M (E-M), while they are more diverse after these proteins. Furthermore, comparison of virus-host interaction networks of SARS-CoV-2 and SARS-CoV accessory proteins showed that they share multiple antiviral signaling pathways, those involved in the apoptotic process, viral life cycle and response to oxidative stress. In summary, our study provides a tool for coronavirus genome annotation and builds a comprehensive profile for coronavirus accessory proteins covering their composition, classification, evolutionary pattern and host interaction.Over the last decade, genome-wide association studies (GWAS) have discovered thousands of genetic variants underlying complex human diseases and agriculturally important traits. These findings have been utilized to dissect the biological basis of diseases, to develop new drugs, to advance precision medicine and to boost breeding. However, the potential of GWAS is still underexploited due to methodological limitations. Many challenges have emerged, including detecting epistasis and single-nucleotide polymorphisms (SNPs) with small effects and distinguishing causal variants from other SNPs associated through linkage disequilibrium. These issues have motivated advancements in GWAS analyses in two contrasting cultures-statistical modelling and machine learning. In this review, we systematically present the basic concepts and the benefits and limitations in both methods. We further discuss recent efforts to mitigate their weaknesses. Additionally, we summarize the state-of-the-art tools for detecting the missed signals, ultrarare mutations and gene-gene interactions and for prioritizing SNPs. Our work can offer both theoretical and practical guidelines for performing GWAS analyses and for developing further new robust methods to fully exploit the potential of GWAS. Hereditary factors play a key role in the risk of developing several cancers. Identification of a germline predisposition can have important implications for treatment decisions, risk-reducing interventions, cancer screening, and germline testing. To examine the prevalence of pathogenic germline variants (PGVs) in patients with cancer using a universal testing approach compared with targeted testing based on clinical guidelines and the uptake of cascade family variant testing (FVT). This prospective, multicenter cohort study assessed germline genetic alterations among patients with solid tumor cancer receiving care at Mayo Clinic cancer centers and a community practice between April 1, 2018, and March 31, 2020. https://www.selleckchem.com/products/ly2606368.html Patients were not selected based on cancer type, disease stage, family history of cancer, ethnicity, or age. Germline sequencing using a greater than 80-gene next-generation sequencing platform. Proportion of PGVs detected with a universal strategy compared with a guideline-directed approach on guidelines. Nearly 30% of patients with high-penetrance variants had modifications in their treatment. Uptake of cascade FVT was low despite being offered at no cost. This prospective, multicenter cohort study found that universal multigene panel testing among patients with solid tumor cancer was associated with an increased detection of heritable variants over the predicted yield of targeted testing based on guidelines. Nearly 30% of patients with high-penetrance variants had modifications in their treatment. Uptake of cascade FVT was low despite being offered at no cost.This systematic review aimed to evaluate the effectiveness and safety of probiotics for glycemic control in adults with impaired glucose control, including prediabetes and type 2 diabetes mellitus (T2DM). We searched PubMed, Embase, and Cochrane databases, and trial registries up to February 2019. We included randomized controlled trials (RCTs) of participants with prediabetes or T2DM. Eligible trials compared probiotics versus either placebo, no intervention, or comparison probiotics, or compared synbiotics versus prebiotics. Primary outcomes were mean change in fasting blood glucose (FBG) and glycated hemoglobin (HbA1c) from baseline to short term (130 mg/dL and those not receiving insulin therapy than their counterparts. Probiotics were also effective in lowering serum cholesterol over the short and long term. In conclusion, we found that probiotics may have a glucose-lowering effect in T2DM participants. The effect appeared to be stronger in participants with poorly controlled diabetes and those not on insulin therapy. Systematic review registration CRD42019121682.Metallo-β-lactamases (MBLs) hydrolyze a wide range of β-lactam antibiotics. While all MBLs share a common αβ/βα-fold, there are many other proteins with the same folding pattern that exhibit different enzymatic activities. These enzymes, together with MBLs, form the MBL superfamily. Thermotoga maritima tRNase Z, a tRNA 3' processing endoribonuclease of MBL-superfamily, and IMP-1, a clinically isolated MBL, showed a striking similarity in tertiary structure, despite low sequence homology. IMP-1 hydrolyzed both total cellular RNA and synthetic small unstructured RNAs. IMP-1 also hydrolyzed pre-tRNA, but its cleavage site was different from those of T. maritima tRNase Z and human tRNase Z long form, indicating a key difference in substrate recognition. Single-turnover kinetic assays suggested that substrate-binding affinity of T. maritima tRNase Z is much higher than that of IMP-1.Glatiramer acetate (GA) is approved for the treatment of multiple sclerosis (MS). However, the mechanism of action of GA in MS is still unclear. In particular, it is not known whether GA can modulate the pro-inflammatory Th17-type immune response in MS. We investigated the effects of original GA (Copaxone®, Teva, Israel) and generic GA (Timexone®, Biocad, Russia) on Th17- and Th1-type cytokine production in vitro in 25 patients with relapsing-remitting MS and 25 healthy subjects. Both original and generic GA at concentrations 50-200 μg/ml dose-dependently inhibited interleukin-17 and interferon-γ production by anti-CD3/anti-CD28-activated peripheral blood mononuclear cells from MS patients and healthy subjects. This effect of GA was reproduced using purified CD4+ T cells, suggesting that GA can directly modulate the functions of Th17 and Th1 cells. At high concentrations (100-200 μg/ml), GA also suppressed the production of Th17-differentiation cytokines (interleukin-1β and interleukin-6) by lipopolysaccharide (LPS)-activated dendritic cells (DCs).0 Comments 0 Shares 106 Views 0 ReviewsPlease log in to like, share and comment! -
We demonstrate that molecular modeling and simulation represent an effective approach to gather information on key biological processes and thus guide rational molecular design strategies.Helicobacter pylori, the most common cause of chronic gastritis, peptic ulcers, and gastric cancers, infects around half of the world's population. Although the drawbacks of antibiotic-based combination therapy are emerging, no effective vaccine is available to prevent H. pylori infections. Here, we describe the total synthesis of the unique α-(1→3)-linked tri-d-glycero-d-manno-heptose antigen from the lipopolysaccharide of H. pylori serogroups O3 and O6 and strains MO19, D2, D4, and D5 based on de novo synthesis of the differentially protected d-glycero-d-manno-heptosyl building blocks. Immunization of **** with the semisynthetic glycoconjugate elicited a very robust T-cell-dependent antigen-specific immune response, resulting in very high titers of IgG1 and IgG2b protective antibody isotypes. The postimmune sera recognized H. pylori NCTC 11637 and bound strongly to the surface of the intact bacteria.Despite the remarkable reactivity that was achieved by a series of transition-metal catalysts with a PNP type ligand, the electron-rich chiral PNP ligands have still been rarely reported because of the difficulties in synthesis and the nature of air-sensitivity. Herein, we report a novel chiral PNP ligand (Heng-PNP) with both a rigid backbone and a bulky tert-butyl group on the phospholane motif. We successfully obtained its divalent iron complex. The chiral environment of its Ir(III) complex was also discussed with quadrant analysis. This tridentate ligand was applied in iridium-catalyzed asymmetric hydrogenation of challenging diaryl ketones up to 98% ee and 500 TON are achieved. Computational study showed that the twist of conjugate aryl group in the substrate (induced by the special chiral pocket of Ir/Heng-PNP complex) leads to the energy difference in the enantiodetermining step.Enzymatic suicide inactivation, a route of permanent enzyme inhibition, is the mechanism of action for a wide array of pharmaceuticals. Here, we developed the first nanosensor that selectively reports the suicide inactivation pathway of an enzyme. The sensor is based on modulation of the near-infrared fluorescence of an enzyme-bound carbon nanotube. The nanosensor responded selectively to substrate-mediated suicide inactivation of the tyrosinase enzyme via bathochromic shifting of the nanotube emission wavelength. Mechanistic investigations revealed that singlet oxygen generated by the suicide inactivation pathway induced the response. We used the nanosensor to quantify the degree of enzymatic inactivation by measuring response rates to small molecule tyrosinase modulators. This work resulted in a new capability of interrogating a specific route of enzymatic death. Potential applications include drug screening and hit-validation for compounds that elicit or inhibit enzymatic inactivation and single-molecule measurements to assess population heterogeneity in enzyme activity.The magnetic coupling interaction of Mn2+-Mn2+ in Mn2+-included phosphors could induce a shorter emission decay time, compared with that of isolated Mn2+, which could overcome the photoluminescence (PL) saturation when stimulated by a high photon flux due to the long lifetime of the Mn2+ excited state. However, few studies have directly proved the Mn2+-Mn2+ coupling effect on the PL decay. In this paper, the effect on PL of CsMnCl3 (CMC) and its hydrates is revealed by photomagnetism results, excluding the interference effects of site symmetry and phonon energy. The antiferromagnetic interaction of the CMC is larger when Mn2+ at a photoexcited state than at a dark state, which is contrary to the hydrates with weak Mn2+-Mn2+ interaction. This research not only helps researchers to understand the fundamental optical process but also is instructive for designing high performance Mn2+-doped phosphors in the field of displays and lighting.Antimicrobial photodynamic therapy (APDT) is a promising alternative to traditional antibiotics for the treatment of bacterial infections, which inactivates a broad spectrum of bacteria. However, many traditional photosensitizers (PSs) are hydrophobic with poor water solubility and easy aggregation. On the other hand, some light sources such as ultraviolet (UV) have poor penetration and high cytotoxicity. Both issues lead to undesired photodynamic therapy efficacy. To overcome these issues, we develop a novel water-soluble natural PS (sorbicillinoids) obtained by microbial fermentation using recombinant filamentous fungus Trichoderma reesei. Sorbicillinoids could effectively generate singlet oxygen (1O2) under UV light irradiation and ultimately display photoinactivation activity on Gram-positive bacteria including Staphylococcus aureus, Bacillus subtilis, and Micrococcus luteus but not Gram-negative ones such as Escherichia coli and Proteus vulgaris. https://www.selleckchem.com/products/necrosulfonamide.html Sorbicillinoids were found to enter S. aureus but not E. coli. S. aureus treated with sorbicillinoids and UV light displayed high levels of intracellular reactive oxygen species (ROS), notable DNA photocleavage, and compromised cell semipermeability without overt cell membrane disruption, none of which was found in the treated E. coli. All these contribute to the sorbicillinoid-based photoinactivation of Gram-positive bacteria. Moreover, the dark toxicity and phototoxicity on mammalian cells or hemolysis activity of sorbicillinoids is negligible, showing its excellent biocompatibility. This study expands the utilization of UV light for surface sterilization to disinfection in solution. Therefore, sorbicillinoids, a type of secondary metabolite from fungus, have a promising future as a new PS for APDT using a nontoxic dose of UV irradiation.A novel concept that conversion of chiral 2-substituted DMAP into its DMAP-N-oxide could significantly enhance the catalytic activity and still be used as an acyl transfer catalyst is presented. A new type of chiral 2-substituted DMAP-N-oxides, derived from l-prolinamides, has been rationally designed, facilely synthesized, and applied in the dynamic kinetic resolution of azlactones. Using simple MeOH as the nucleophile, various l-amino acid derivatives were produced in high yields (up to 98% yield) and enantioselectivities (up to 96% ee). Furthermore, α-deuterium labeled l-phenylalanine derivative was also obtained. Experiments and DFT calculations revealed that in 2-substituted DMAP-N-oxide, the oxygen atom acted as the nucleophilic site and the N-H bond functioned as the H-bond donor. High enantioselectivity of the reaction was governed by steric factors, and the addition of benzoic acid reduced the activation energy by participating in the construction of a H-bond bridge. The theoretical chemical study indicated that only when attack directions of the chiral catalyst were fully considered could the correct calculation results be obtained.
We demonstrate that molecular modeling and simulation represent an effective approach to gather information on key biological processes and thus guide rational molecular design strategies.Helicobacter pylori, the most common cause of chronic gastritis, peptic ulcers, and gastric cancers, infects around half of the world's population. Although the drawbacks of antibiotic-based combination therapy are emerging, no effective vaccine is available to prevent H. pylori infections. Here, we describe the total synthesis of the unique α-(1→3)-linked tri-d-glycero-d-manno-heptose antigen from the lipopolysaccharide of H. pylori serogroups O3 and O6 and strains MO19, D2, D4, and D5 based on de novo synthesis of the differentially protected d-glycero-d-manno-heptosyl building blocks. Immunization of mice with the semisynthetic glycoconjugate elicited a very robust T-cell-dependent antigen-specific immune response, resulting in very high titers of IgG1 and IgG2b protective antibody isotypes. The postimmune sera recognized H. pylori NCTC 11637 and bound strongly to the surface of the intact bacteria.Despite the remarkable reactivity that was achieved by a series of transition-metal catalysts with a PNP type ligand, the electron-rich chiral PNP ligands have still been rarely reported because of the difficulties in synthesis and the nature of air-sensitivity. Herein, we report a novel chiral PNP ligand (Heng-PNP) with both a rigid backbone and a bulky tert-butyl group on the phospholane motif. We successfully obtained its divalent iron complex. The chiral environment of its Ir(III) complex was also discussed with quadrant analysis. This tridentate ligand was applied in iridium-catalyzed asymmetric hydrogenation of challenging diaryl ketones up to 98% ee and 500 TON are achieved. Computational study showed that the twist of conjugate aryl group in the substrate (induced by the special chiral pocket of Ir/Heng-PNP complex) leads to the energy difference in the enantiodetermining step.Enzymatic suicide inactivation, a route of permanent enzyme inhibition, is the mechanism of action for a wide array of pharmaceuticals. Here, we developed the first nanosensor that selectively reports the suicide inactivation pathway of an enzyme. The sensor is based on modulation of the near-infrared fluorescence of an enzyme-bound carbon nanotube. The nanosensor responded selectively to substrate-mediated suicide inactivation of the tyrosinase enzyme via bathochromic shifting of the nanotube emission wavelength. Mechanistic investigations revealed that singlet oxygen generated by the suicide inactivation pathway induced the response. We used the nanosensor to quantify the degree of enzymatic inactivation by measuring response rates to small molecule tyrosinase modulators. This work resulted in a new capability of interrogating a specific route of enzymatic death. Potential applications include drug screening and hit-validation for compounds that elicit or inhibit enzymatic inactivation and single-molecule measurements to assess population heterogeneity in enzyme activity.The magnetic coupling interaction of Mn2+-Mn2+ in Mn2+-included phosphors could induce a shorter emission decay time, compared with that of isolated Mn2+, which could overcome the photoluminescence (PL) saturation when stimulated by a high photon flux due to the long lifetime of the Mn2+ excited state. However, few studies have directly proved the Mn2+-Mn2+ coupling effect on the PL decay. In this paper, the effect on PL of CsMnCl3 (CMC) and its hydrates is revealed by photomagnetism results, excluding the interference effects of site symmetry and phonon energy. The antiferromagnetic interaction of the CMC is larger when Mn2+ at a photoexcited state than at a dark state, which is contrary to the hydrates with weak Mn2+-Mn2+ interaction. This research not only helps researchers to understand the fundamental optical process but also is instructive for designing high performance Mn2+-doped phosphors in the field of displays and lighting.Antimicrobial photodynamic therapy (APDT) is a promising alternative to traditional antibiotics for the treatment of bacterial infections, which inactivates a broad spectrum of bacteria. However, many traditional photosensitizers (PSs) are hydrophobic with poor water solubility and easy aggregation. On the other hand, some light sources such as ultraviolet (UV) have poor penetration and high cytotoxicity. Both issues lead to undesired photodynamic therapy efficacy. To overcome these issues, we develop a novel water-soluble natural PS (sorbicillinoids) obtained by microbial fermentation using recombinant filamentous fungus Trichoderma reesei. Sorbicillinoids could effectively generate singlet oxygen (1O2) under UV light irradiation and ultimately display photoinactivation activity on Gram-positive bacteria including Staphylococcus aureus, Bacillus subtilis, and Micrococcus luteus but not Gram-negative ones such as Escherichia coli and Proteus vulgaris. https://www.selleckchem.com/products/necrosulfonamide.html Sorbicillinoids were found to enter S. aureus but not E. coli. S. aureus treated with sorbicillinoids and UV light displayed high levels of intracellular reactive oxygen species (ROS), notable DNA photocleavage, and compromised cell semipermeability without overt cell membrane disruption, none of which was found in the treated E. coli. All these contribute to the sorbicillinoid-based photoinactivation of Gram-positive bacteria. Moreover, the dark toxicity and phototoxicity on mammalian cells or hemolysis activity of sorbicillinoids is negligible, showing its excellent biocompatibility. This study expands the utilization of UV light for surface sterilization to disinfection in solution. Therefore, sorbicillinoids, a type of secondary metabolite from fungus, have a promising future as a new PS for APDT using a nontoxic dose of UV irradiation.A novel concept that conversion of chiral 2-substituted DMAP into its DMAP-N-oxide could significantly enhance the catalytic activity and still be used as an acyl transfer catalyst is presented. A new type of chiral 2-substituted DMAP-N-oxides, derived from l-prolinamides, has been rationally designed, facilely synthesized, and applied in the dynamic kinetic resolution of azlactones. Using simple MeOH as the nucleophile, various l-amino acid derivatives were produced in high yields (up to 98% yield) and enantioselectivities (up to 96% ee). Furthermore, α-deuterium labeled l-phenylalanine derivative was also obtained. Experiments and DFT calculations revealed that in 2-substituted DMAP-N-oxide, the oxygen atom acted as the nucleophilic site and the N-H bond functioned as the H-bond donor. High enantioselectivity of the reaction was governed by steric factors, and the addition of benzoic acid reduced the activation energy by participating in the construction of a H-bond bridge. The theoretical chemical study indicated that only when attack directions of the chiral catalyst were fully considered could the correct calculation results be obtained.0 Comments 0 Shares 85 Views 0 Reviews -
The current outbreak of COVID-19 pandemic traces its roots **** many decades and is worsened by a number of ill-conceived strategies and policies. The current patent protection regime and its suitability in dealing with the current COVID-19 pandemic need to be questioned. Strengthened intellectual property protection manifested by the rise of TRIPS-Plus standards is having a negative impact on the affordability and accessibility of medicines. Dealing with the current pandemic urgently demands serious reform and collective efforts.The COVID-19 Pandemic has become a major public health concern worldwide, which can impact environmental sustainability and social responsibility, as well as people's quality of life. In this context, environmental awareness, sustainable consumption and social actions of people have been effectively changed, as a period of quarantine, social isolation and health crisis caused by Pandemic has been experienced. This study aims to analyze the impact of the COVID-19 Pandemic on environmental awareness, sustainable consumption and social responsibility, in the perception of Baby Boomers, X and Y generations, residents in Brazil and Portugal. The method used was quantitative research, of a descriptive character, through a survey applied to 3236 people, which was analyzed with the use of Structural Equation Modeling. The results indicate that COVID-19 Pandemic is an important vector in people's behavioral change, which reflects on environmental sustainability and social responsibility. It is noteworthy that the impact of the COVID-19 Pandemic had a greater influence on sustainable consumption, followed by environmental awareness, and to a lesser extent, on social responsibility. There was also greater relevance in Portugal, as well as the perception of the Baby Boomers generation. This study also provides a framework such as metrics to measure a transformational event, which is the COVID-19 Pandemic in socio-environmental aspects and conscious consumption.The versatile and computationally attractive FATE™ facility software package for analyzing the transient behavior of facilities during normal and off-normal conditions is applied to the problem of SARS-CoV-2 virus transmission in single-and multi-room facilities. Subject to the justifiable assumptions of non-interacting virus droplets, room-wide spatially homogeneous virus droplet aerosols and droplet sedimentation in accordance with Stokes law; the FATE code tracks the virus aerosol from a human source through a facility with a practical ventilation system which reconditions, filters, and recycles the air. https://www.selleckchem.com/products/loxo-195.html The results show that infection risk can be reduced by 50 percent for increased facility airflow, 70 percent for increased airflow and the inclusion of a HEPA filter on recirculated ventilation air, and nearly 90 percent for increased airflow, inclusion of a HEPA filter, and wearing a mask. These results clearly indicate that there are operational changes and engineering measures which can reduce the potential infection risk in multi-room facilities.Child maltreatment (CM) is a global public health problem. Evidence-based home visiting programs, such as SafeCare®, reduce CM risk, and enhance parent-child relationships and other protective factors. As the result of the COVID-19 pandemic and resulting restrictions, SafeCare Providers transitioned from home to virtual delivery for the SafeCare curriculum. The purpose of this study is to 1) examine active SafeCare Providers' opinions on the feasibility and effectiveness of SafeCare via remote delivery, and 2) better understand workforce concerns for human service professionals within the context of COVID-19 mitigation efforts. Data are from a cross-sectional survey of SafeCare Providers (N = 303) in the United States, Canada, and Australia. The majority of Providers reported they were actively delivering SafeCare virtually and were comfortable with the delivery format. Providers indicated that the majority of SafeCare families are making progress on target skills, and that engagement is high among many families. Some service delivery challenges were reported, ranging from family data plan limitations to difficulty with delivery of specific components of the SafeCare curriculum related to modeling and assessment. The impact of COVID-19 on Providers' daily routines, stress level, and work-life balance has been significant. Remote, virtual delivery of CM prevention programming offers the opportunity to continue serving vulnerable families in the midst of a pandemic. Barriers related to family technology and data access must be addressed to ensure reach and the effective delivery of prevention programming during the pandemic and beyond.We analyze an epidemic model on a network consisting of susceptible-infected-recovered equations at the nodes coupled by diffusion using a graph Laplacian. We introduce an epidemic criterion and examine different isolation strategies we prove that it is most effective to isolate a node of highest degree. The model is also useful to evaluate deconfinement scenarios and prevent a so-called second wave. The model has few parameters enabling fitting to the data and the essential ingredient of importation of infected; these features are particularly important for the current COVID-19 epidemic.Symmetrical bis-Schiff bases (LH 2) have been synthesized by the condensation of 1,6-hexanediamine (hn) and carbonyl or dicarbonyl. One of the synthesized Schiff bases has been subjected to the molecular docking for the prediction of their potentiality against coronavirus (SARS-CoV-2). Molecular docking revealed that tested Schiff base possessed high binding affinity with the receptor protein of SARS CoV-2 compared with hydroxychloroquine (HCQ). The ADMET analysis showed that ligand is non-carcinogenic and less toxic than standard HCQ. Schiff bases acting as dibasic tetra-dentate ligands formed titanium (IV) complexes of the type [TiL(H2O)2Cl2] or [TiL(H2O)2]Cl2 being coordinated through ONNO donor atoms. Ligands and complexes were characterized by the elemental analysis and physicochemical and spectroscopic data including FTIR, 1H NMR, mass spectra, UV-Visible spectra, molar conductance, and magnetic measurement. Optimized structures obtained from quantum chemical calculations supported the formation of complexes.
The current outbreak of COVID-19 pandemic traces its roots back many decades and is worsened by a number of ill-conceived strategies and policies. The current patent protection regime and its suitability in dealing with the current COVID-19 pandemic need to be questioned. Strengthened intellectual property protection manifested by the rise of TRIPS-Plus standards is having a negative impact on the affordability and accessibility of medicines. Dealing with the current pandemic urgently demands serious reform and collective efforts.The COVID-19 Pandemic has become a major public health concern worldwide, which can impact environmental sustainability and social responsibility, as well as people's quality of life. In this context, environmental awareness, sustainable consumption and social actions of people have been effectively changed, as a period of quarantine, social isolation and health crisis caused by Pandemic has been experienced. This study aims to analyze the impact of the COVID-19 Pandemic on environmental awareness, sustainable consumption and social responsibility, in the perception of Baby Boomers, X and Y generations, residents in Brazil and Portugal. The method used was quantitative research, of a descriptive character, through a survey applied to 3236 people, which was analyzed with the use of Structural Equation Modeling. The results indicate that COVID-19 Pandemic is an important vector in people's behavioral change, which reflects on environmental sustainability and social responsibility. It is noteworthy that the impact of the COVID-19 Pandemic had a greater influence on sustainable consumption, followed by environmental awareness, and to a lesser extent, on social responsibility. There was also greater relevance in Portugal, as well as the perception of the Baby Boomers generation. This study also provides a framework such as metrics to measure a transformational event, which is the COVID-19 Pandemic in socio-environmental aspects and conscious consumption.The versatile and computationally attractive FATE™ facility software package for analyzing the transient behavior of facilities during normal and off-normal conditions is applied to the problem of SARS-CoV-2 virus transmission in single-and multi-room facilities. Subject to the justifiable assumptions of non-interacting virus droplets, room-wide spatially homogeneous virus droplet aerosols and droplet sedimentation in accordance with Stokes law; the FATE code tracks the virus aerosol from a human source through a facility with a practical ventilation system which reconditions, filters, and recycles the air. https://www.selleckchem.com/products/loxo-195.html The results show that infection risk can be reduced by 50 percent for increased facility airflow, 70 percent for increased airflow and the inclusion of a HEPA filter on recirculated ventilation air, and nearly 90 percent for increased airflow, inclusion of a HEPA filter, and wearing a mask. These results clearly indicate that there are operational changes and engineering measures which can reduce the potential infection risk in multi-room facilities.Child maltreatment (CM) is a global public health problem. Evidence-based home visiting programs, such as SafeCare®, reduce CM risk, and enhance parent-child relationships and other protective factors. As the result of the COVID-19 pandemic and resulting restrictions, SafeCare Providers transitioned from home to virtual delivery for the SafeCare curriculum. The purpose of this study is to 1) examine active SafeCare Providers' opinions on the feasibility and effectiveness of SafeCare via remote delivery, and 2) better understand workforce concerns for human service professionals within the context of COVID-19 mitigation efforts. Data are from a cross-sectional survey of SafeCare Providers (N = 303) in the United States, Canada, and Australia. The majority of Providers reported they were actively delivering SafeCare virtually and were comfortable with the delivery format. Providers indicated that the majority of SafeCare families are making progress on target skills, and that engagement is high among many families. Some service delivery challenges were reported, ranging from family data plan limitations to difficulty with delivery of specific components of the SafeCare curriculum related to modeling and assessment. The impact of COVID-19 on Providers' daily routines, stress level, and work-life balance has been significant. Remote, virtual delivery of CM prevention programming offers the opportunity to continue serving vulnerable families in the midst of a pandemic. Barriers related to family technology and data access must be addressed to ensure reach and the effective delivery of prevention programming during the pandemic and beyond.We analyze an epidemic model on a network consisting of susceptible-infected-recovered equations at the nodes coupled by diffusion using a graph Laplacian. We introduce an epidemic criterion and examine different isolation strategies we prove that it is most effective to isolate a node of highest degree. The model is also useful to evaluate deconfinement scenarios and prevent a so-called second wave. The model has few parameters enabling fitting to the data and the essential ingredient of importation of infected; these features are particularly important for the current COVID-19 epidemic.Symmetrical bis-Schiff bases (LH 2) have been synthesized by the condensation of 1,6-hexanediamine (hn) and carbonyl or dicarbonyl. One of the synthesized Schiff bases has been subjected to the molecular docking for the prediction of their potentiality against coronavirus (SARS-CoV-2). Molecular docking revealed that tested Schiff base possessed high binding affinity with the receptor protein of SARS CoV-2 compared with hydroxychloroquine (HCQ). The ADMET analysis showed that ligand is non-carcinogenic and less toxic than standard HCQ. Schiff bases acting as dibasic tetra-dentate ligands formed titanium (IV) complexes of the type [TiL(H2O)2Cl2] or [TiL(H2O)2]Cl2 being coordinated through ONNO donor atoms. Ligands and complexes were characterized by the elemental analysis and physicochemical and spectroscopic data including FTIR, 1H NMR, mass spectra, UV-Visible spectra, molar conductance, and magnetic measurement. Optimized structures obtained from quantum chemical calculations supported the formation of complexes.0 Comments 0 Shares 149 Views 0 Reviews -
Paget's disease of bone (PDB) is a localized chronic osteopathy, apparently not genetic in origin, and frequently diagnosed from incidental radiographic images. The disease is characterized by deformation, hypervascularity, and structural weakness of the bone and by changes in joint biomechanics. Most cases of PDB can be easily diagnosed from radiographic findings, but monostotic cases may be problematic and require invasive procedures.
A 70-year-old woman had re-revision surgery for early catastrophic failure of an isolated cup revision hip arthroplasty because of undiagnosed PDB 21 years after the primary total hip arthroplasty. To identify the pathomechanism of early failure, we performed bone biopsy on the right iliac crest. Histopathological findings showed a mosaic pattern in the bone characteristic of PDB. Prior to the planned re-revision surgery, we treated the PDB with denosumab until the patient's serum level of alkaline phosphatase (ALP) was within the normal limits. Two months after denosumab treatment, we performed re-revision hip arthroplasty using a structural allograft and a Kerboull-type reinforcement device.
The delay in correct diagnosis of PDB was associated with the rapid destruction of pelvic bone. The preoperative use of antipagetic medication could decrease the risk of implant loosening and may be warranted to mitigate that risk.
In patients with a failed arthroplasty, thoughtful evaluation is warranted for preoperative antipagetic medication in order to reduce PDB activity and potentially decrease the risk of implant loosening. This paper offers some steps for such risk reduction in the workup before revision surgery.
In patients with a failed arthroplasty, thoughtful evaluation is warranted for preoperative antipagetic medication in order to reduce PDB activity and potentially decrease the risk of implant loosening. This paper offers some steps for such risk reduction in the workup before revision surgery.
Inflammatory fibroid polyps is a rare entity that mostly occur in the stomach. Gastric type is usually asymptomatic or may show nonspecific symptoms. Diagnosis is mainly postoperative with limited roles of usual diagnostic techniques.
A 42 years old healthy female presenting with chronic symptoms for epigastric discomfort and mild nausea. Labs showed mild anemia. A gastric lesion was detected by Endoscopy and being studied by echo-endoscopy and needle aspirate. Gastric Inflammatory fibroid polyp was diagnosed after distal gastrectomy by histopathology and immunohistochemistry.
Gastric inflammatory fibroid polyp is a preoperative diagnostic challenge of unclear pathogenesis. Histopathology and immunohistochemistry are the gold standard. Studies around this exact pathology are required for better management and prevention.
Gastric inflammatory fibroid polyp is a preoperative diagnostic challenge of unclear pathogenesis. Histopathology and immunohistochemistry are the gold standard. Studies around this exact pathology are required for better management and prevention.
A De Garengeot hernia is defined by a femoral hernia containing the appendix. Acute appendicitis within a femoral hernia is an extremely rare surgical presentation and occurs in only 0.08-0.013% of cases as cited by the literature.
A 64-year-old female presented to the Emergency Department of our hospital with acute onset of a right-sided groin bulge that occurred earlier that day after doing heavy lifting. Her workup revealed acute appendicitis contained within an incarcerated right femoral hernia. The patient underwent laparoscopic appendectomy with open femoral hernia repair. Intraoperatively, the appendiceal tip was incarcerated within the hernia sac. It was removed through the open inguinal incision after the appendix base was divided laparoscopically. Final pathology showed inflamed acute appendicitis without evidence for neoplasm.
Physicians should be aware of the rare entity of an unusual presentation of appendicitis as well as surgical options for treatment. https://www.selleckchem.com/products/4u8c.html The literature does not conclude upon a gold standard for method of approach.
De Garengeot hernia remains a rare and unusual surgical presentation of femoral hernia, and complication of the case by incarceration leading to acute appendicitis provides a challenging surgical approach which should be individualized to each patient.
De Garengeot hernia remains a rare and unusual surgical presentation of femoral hernia, and complication of the case by incarceration leading to acute appendicitis provides a challenging surgical approach which should be individualized to each patient.
Adult perineal impalement injuries are uncommon and notorious for their complex injury pattern and risk of massive pelvic bleeding. They present a challenge for the treating physician as there is no consensus about the optimal treatment in the existing literature. In most cases patients need operative intervention.
In this article the authors present a case report of a 63-year old man with an impalement injury in the left gluteus, who was managed conservatively.
With the recent trends towards conservative management of abdominal penetrating trauma, increased morbidity and costs associated with nontherapeutic laparotomy, conservative management of impalement injuries in hemodynamically stable patients should be considered. Accurate determination of the impaling object trajectory path is vital for the decision and aids to answer two important questions Did the impaling object enter the peritoneal, retroperitoneal or pelvic cavity? Is there an injury that will require an operation?
Abdominoperineal impalement injuries have high mortality, but those patients, who manage to reach hospital alive, can sometimes be manages conservatively, as shown in our case report.
Abdominoperineal impalement injuries have high mortality, but those patients, who manage to reach hospital alive, can sometimes be manages conservatively, as shown in our case report.
Mirizzi syndrome is a type of biliary obstruction caused by an impacted stone in the gallbladder neck or cystic duct that causes and extrinsic obstruction of the common bile duct, this condition if left untreated can lead to duct erosion, fistula, and cholangitis. Preoperative diagnosis is difficult since if not diagnosed correctly can elevate the risk of intraoperative bile duct injury.
We present the case of a 61-year-old patient, she presented to our hospital with obstructive jaundice, and a type III Mirizzi syndrome was identified. Preoperative diagnosis was completed, and she was successfully treated using a gallbladder free flap. On follow-ups, the patient is doing well.
Mirizzi Syndrome is a rare syndrome that can lead to anatomical disturbances and surgical difficulties due to the hostile territory it creates. High clinical awareness, an emphasis on the preoperative diagnosis, and safe surgical techniques minimizing bile duct injury can improve patients outcome.
Mirizzi Syndrome is a rare syndrome that can lead to anatomical disturbances and surgical difficulties due to the hostile territory it creates.
Paget's disease of bone (PDB) is a localized chronic osteopathy, apparently not genetic in origin, and frequently diagnosed from incidental radiographic images. The disease is characterized by deformation, hypervascularity, and structural weakness of the bone and by changes in joint biomechanics. Most cases of PDB can be easily diagnosed from radiographic findings, but monostotic cases may be problematic and require invasive procedures. A 70-year-old woman had re-revision surgery for early catastrophic failure of an isolated cup revision hip arthroplasty because of undiagnosed PDB 21 years after the primary total hip arthroplasty. To identify the pathomechanism of early failure, we performed bone biopsy on the right iliac crest. Histopathological findings showed a mosaic pattern in the bone characteristic of PDB. Prior to the planned re-revision surgery, we treated the PDB with denosumab until the patient's serum level of alkaline phosphatase (ALP) was within the normal limits. Two months after denosumab treatment, we performed re-revision hip arthroplasty using a structural allograft and a Kerboull-type reinforcement device. The delay in correct diagnosis of PDB was associated with the rapid destruction of pelvic bone. The preoperative use of antipagetic medication could decrease the risk of implant loosening and may be warranted to mitigate that risk. In patients with a failed arthroplasty, thoughtful evaluation is warranted for preoperative antipagetic medication in order to reduce PDB activity and potentially decrease the risk of implant loosening. This paper offers some steps for such risk reduction in the workup before revision surgery. In patients with a failed arthroplasty, thoughtful evaluation is warranted for preoperative antipagetic medication in order to reduce PDB activity and potentially decrease the risk of implant loosening. This paper offers some steps for such risk reduction in the workup before revision surgery. Inflammatory fibroid polyps is a rare entity that mostly occur in the stomach. Gastric type is usually asymptomatic or may show nonspecific symptoms. Diagnosis is mainly postoperative with limited roles of usual diagnostic techniques. A 42 years old healthy female presenting with chronic symptoms for epigastric discomfort and mild nausea. Labs showed mild anemia. A gastric lesion was detected by Endoscopy and being studied by echo-endoscopy and needle aspirate. Gastric Inflammatory fibroid polyp was diagnosed after distal gastrectomy by histopathology and immunohistochemistry. Gastric inflammatory fibroid polyp is a preoperative diagnostic challenge of unclear pathogenesis. Histopathology and immunohistochemistry are the gold standard. Studies around this exact pathology are required for better management and prevention. Gastric inflammatory fibroid polyp is a preoperative diagnostic challenge of unclear pathogenesis. Histopathology and immunohistochemistry are the gold standard. Studies around this exact pathology are required for better management and prevention. A De Garengeot hernia is defined by a femoral hernia containing the appendix. Acute appendicitis within a femoral hernia is an extremely rare surgical presentation and occurs in only 0.08-0.013% of cases as cited by the literature. A 64-year-old female presented to the Emergency Department of our hospital with acute onset of a right-sided groin bulge that occurred earlier that day after doing heavy lifting. Her workup revealed acute appendicitis contained within an incarcerated right femoral hernia. The patient underwent laparoscopic appendectomy with open femoral hernia repair. Intraoperatively, the appendiceal tip was incarcerated within the hernia sac. It was removed through the open inguinal incision after the appendix base was divided laparoscopically. Final pathology showed inflamed acute appendicitis without evidence for neoplasm. Physicians should be aware of the rare entity of an unusual presentation of appendicitis as well as surgical options for treatment. https://www.selleckchem.com/products/4u8c.html The literature does not conclude upon a gold standard for method of approach. De Garengeot hernia remains a rare and unusual surgical presentation of femoral hernia, and complication of the case by incarceration leading to acute appendicitis provides a challenging surgical approach which should be individualized to each patient. De Garengeot hernia remains a rare and unusual surgical presentation of femoral hernia, and complication of the case by incarceration leading to acute appendicitis provides a challenging surgical approach which should be individualized to each patient. Adult perineal impalement injuries are uncommon and notorious for their complex injury pattern and risk of massive pelvic bleeding. They present a challenge for the treating physician as there is no consensus about the optimal treatment in the existing literature. In most cases patients need operative intervention. In this article the authors present a case report of a 63-year old man with an impalement injury in the left gluteus, who was managed conservatively. With the recent trends towards conservative management of abdominal penetrating trauma, increased morbidity and costs associated with nontherapeutic laparotomy, conservative management of impalement injuries in hemodynamically stable patients should be considered. Accurate determination of the impaling object trajectory path is vital for the decision and aids to answer two important questions Did the impaling object enter the peritoneal, retroperitoneal or pelvic cavity? Is there an injury that will require an operation? Abdominoperineal impalement injuries have high mortality, but those patients, who manage to reach hospital alive, can sometimes be manages conservatively, as shown in our case report. Abdominoperineal impalement injuries have high mortality, but those patients, who manage to reach hospital alive, can sometimes be manages conservatively, as shown in our case report. Mirizzi syndrome is a type of biliary obstruction caused by an impacted stone in the gallbladder neck or cystic duct that causes and extrinsic obstruction of the common bile duct, this condition if left untreated can lead to duct erosion, fistula, and cholangitis. Preoperative diagnosis is difficult since if not diagnosed correctly can elevate the risk of intraoperative bile duct injury. We present the case of a 61-year-old patient, she presented to our hospital with obstructive jaundice, and a type III Mirizzi syndrome was identified. Preoperative diagnosis was completed, and she was successfully treated using a gallbladder free flap. On follow-ups, the patient is doing well. Mirizzi Syndrome is a rare syndrome that can lead to anatomical disturbances and surgical difficulties due to the hostile territory it creates. High clinical awareness, an emphasis on the preoperative diagnosis, and safe surgical techniques minimizing bile duct injury can improve patients outcome. Mirizzi Syndrome is a rare syndrome that can lead to anatomical disturbances and surgical difficulties due to the hostile territory it creates.0 Comments 0 Shares 121 Views 0 Reviews -
3 ± 0.4 to 7.4 ± 0.3 and 5.4 ± 0.1 μM, respectively, after addition of the salt solution. For the platinum derivative 2, the IC50 improves by ca. 40% reaching 1.3 ± 0.1 μM when potassium chloride is added. Likewise, the resistant factor found for 2 (RF = 1) confirms that this complex circumvents cisplatin-resistance in A2780cis and is improved with the addition of potassium chloride (RF = 0.65). The presence of the aza crown ether moiety as linker in the systems studied herein is a key point since, in addition to allowing and facilitating interaction with alkali metal ions, this unit is flexible enough to adapt to a variety of environments, as confirmed by the X-ray crystal structures described, where different conformations and ways to fold in are found. In order to gain insight into the electronic and structural facts involved in the interaction of complex 2 with the alkali metal ions, a DFT study was performed, and the description of the molecular electrostatic potentials (MEPs) is also presented.In recent years, increased social pressure and other factors have led to a surge in the number of people suffering from depression studies show that quite a few people will experience major depression in their lifetime. Currently, it is widely believed that the internal cause of major depression is reduced levels of norepinephrine (NE) in brain tissue. Norepinephrine is very similar in structure and chemical properties to the other two catecholamine neurotransmitters, epinephrine (EP) and dopamine (DA). These three neurotransmitters are synthesized sequentially through enzymatic reactions in the biological system. Therefore, design of a norepinephrine-specific fluorescent probe is very challenging. In this work, we utilized a "protect-deprotect" strategy longer emission wavelength cyanine containing water-soluble sulfonate was protected by a carbonic ester linking departing group thiophenol; the β-hydroxy ethyl amine moiety of norepinephrine may react with the carbonic ester via nucleophilic substitution and intramolecular nucleophilic cyclization to release the fluorophore. The process realized the specific red fluorescence detection of norepinephrine. Imaging of the norepinephrine nerve signal transduction stimulated by potassium ion was studied. https://www.selleckchem.com/products/tiplaxtinin-pai-039.html More importantly, real-time fluorescence imaging of norepinephrine levels in the brain of rats stimulated by antidepressant drugs was studied for the first time.From birth to health, surfactants play an essential role in our lives. Due to the importance, their environmental impacts are well understood. One of the aspects that has been extensively studied is their impact on bacteria, particularly on their motility. Here, we uncover an alternate chemotactic strategy triggered by surfactants-diffusiophoresis. We show that even a trace amount of ionic surfactants, down to a single ppm level, can promote the bacterial diffusiophoresis by boosting the surface charge of the cells. Because diffusiophoresis is driven by the surface-solute interactions, surfactant-enhanced diffusiophoresis is observed regardless of the types of bacteria. Whether Gram-positive or -negative, flagellated or nonflagellated, the surfactants enable fast migration of freely suspended bacteria, suggesting a ubiquitous locomotion mechanism that has been largely overlooked. We also demonstrate the implication of surfactant-enhanced bacterial diffusiophoresis on the rapid formation of biofilms in flow networks, suggesting environmental and biomedical implications.The luminescence spectra of triscarbonatouranyl complexes were determined by experimental and theoretical methods. Time-resolved laser-induced fluorescence spectroscopy was used to monitor spectra of uranyl and bicarbonate solutions at 0.1 mol kgw-1 ionic strength and pH ca. 8. The concentrations of Mg2+ and Ca2+ in the samples were chosen in order to vary the proportions of the alkaline earth ternary uranyl complexes MgUO2(CO3)32-, CaUO2(CO3)32-, and Ca2UO2(CO3)3. The luminescence spectrum of each complex was determined by decomposition in order to compare it with the simulated spectra of model structures Na m M n UO2(CO3)3(4-m-2n)- (M = Mg, Ca; m, n = 0-2) obtained by quantum chemical methods. The density functional theory (DFT) and time-dependent (TD)-DFT methods were used with the PBE0 functional to optimize the structures in the ground and excited states, respectively, including relativistic effects at the spin-free level, and water solvent effects using a continuum polarizable conductor model. The changctra showed a very good agreement with experimental band positions and band spacing attributed to MgUO2(CO3)32-, CaUO2(CO3)32-, and Ca2UO2(CO3)3. The evolution of luminescence intensities with the number of alkaline earth metal ions in the structure was also correctly reproduced.Here we report the synthesis and structural characterization of heterotrimetallic (PtII2PdII2MnII2) n coordination polymers that show different dimensionalities and electrocatalytic activities depending on chloride and bromide employed in the system. The reaction of the PtII2PdII2 tetranuclear complex [Pd2Pt2(NH3)4(d-pen)4] (1), bearing free carboxylate groups, with Mn2+ in the presence of chloride produced the (PtII2PdII2MnII2) n coordination polymer [Mn2Cl2(H2O)6(1)]Cl2 (2 Cl ), in which the PtII2PdII2 units of 1 are linked by [****(H2O)3]+ moieties in a 12 ratio to form a 2D sheetlike structure. The corresponding reaction in the presence of bromide also gave the (PtII2PdII2MnII2) n coordination polymer [Mn2(H2O)6(1)]Br4 (3 Br ), but 3 Br adopted a 3D network structure via a 11 linkage of the PtII2PdII2 units with [Mn2(H2O)6]4+ moieties. These complexes showed appreciably different electrocatalytic activities for H2 evolution.Two novel fac-Re(CO)3-based rectangles [(CO) 3 Re(μ-Cl) 2 Re(CO) 3 ] 2 (μ-L) 2 (1) and [(CO) 3 Re(μ-OC4H9) 2 Re(CO) 3 ] 2 (μ-L) 2 (2) based on new photochromic dithienylethene-containing ligand 2,7-di(pyridin-4-yl)-9,10-bis(5-chloro-2-methylthien-3-yl)-phenanthrene (L) were prepared. They displayed varying photochromic properties both in solution and in the single-crystal state. Through a judicious choice of the bridging ligands along the short sides of the rectangles, the photophysical and electrochemical properties of the complexes could also be readily tuned.
3 ± 0.4 to 7.4 ± 0.3 and 5.4 ± 0.1 μM, respectively, after addition of the salt solution. For the platinum derivative 2, the IC50 improves by ca. 40% reaching 1.3 ± 0.1 μM when potassium chloride is added. Likewise, the resistant factor found for 2 (RF = 1) confirms that this complex circumvents cisplatin-resistance in A2780cis and is improved with the addition of potassium chloride (RF = 0.65). The presence of the aza crown ether moiety as linker in the systems studied herein is a key point since, in addition to allowing and facilitating interaction with alkali metal ions, this unit is flexible enough to adapt to a variety of environments, as confirmed by the X-ray crystal structures described, where different conformations and ways to fold in are found. In order to gain insight into the electronic and structural facts involved in the interaction of complex 2 with the alkali metal ions, a DFT study was performed, and the description of the molecular electrostatic potentials (MEPs) is also presented.In recent years, increased social pressure and other factors have led to a surge in the number of people suffering from depression studies show that quite a few people will experience major depression in their lifetime. Currently, it is widely believed that the internal cause of major depression is reduced levels of norepinephrine (NE) in brain tissue. Norepinephrine is very similar in structure and chemical properties to the other two catecholamine neurotransmitters, epinephrine (EP) and dopamine (DA). These three neurotransmitters are synthesized sequentially through enzymatic reactions in the biological system. Therefore, design of a norepinephrine-specific fluorescent probe is very challenging. In this work, we utilized a "protect-deprotect" strategy longer emission wavelength cyanine containing water-soluble sulfonate was protected by a carbonic ester linking departing group thiophenol; the β-hydroxy ethyl amine moiety of norepinephrine may react with the carbonic ester via nucleophilic substitution and intramolecular nucleophilic cyclization to release the fluorophore. The process realized the specific red fluorescence detection of norepinephrine. Imaging of the norepinephrine nerve signal transduction stimulated by potassium ion was studied. https://www.selleckchem.com/products/tiplaxtinin-pai-039.html More importantly, real-time fluorescence imaging of norepinephrine levels in the brain of rats stimulated by antidepressant drugs was studied for the first time.From birth to health, surfactants play an essential role in our lives. Due to the importance, their environmental impacts are well understood. One of the aspects that has been extensively studied is their impact on bacteria, particularly on their motility. Here, we uncover an alternate chemotactic strategy triggered by surfactants-diffusiophoresis. We show that even a trace amount of ionic surfactants, down to a single ppm level, can promote the bacterial diffusiophoresis by boosting the surface charge of the cells. Because diffusiophoresis is driven by the surface-solute interactions, surfactant-enhanced diffusiophoresis is observed regardless of the types of bacteria. Whether Gram-positive or -negative, flagellated or nonflagellated, the surfactants enable fast migration of freely suspended bacteria, suggesting a ubiquitous locomotion mechanism that has been largely overlooked. We also demonstrate the implication of surfactant-enhanced bacterial diffusiophoresis on the rapid formation of biofilms in flow networks, suggesting environmental and biomedical implications.The luminescence spectra of triscarbonatouranyl complexes were determined by experimental and theoretical methods. Time-resolved laser-induced fluorescence spectroscopy was used to monitor spectra of uranyl and bicarbonate solutions at 0.1 mol kgw-1 ionic strength and pH ca. 8. The concentrations of Mg2+ and Ca2+ in the samples were chosen in order to vary the proportions of the alkaline earth ternary uranyl complexes MgUO2(CO3)32-, CaUO2(CO3)32-, and Ca2UO2(CO3)3. The luminescence spectrum of each complex was determined by decomposition in order to compare it with the simulated spectra of model structures Na m M n UO2(CO3)3(4-m-2n)- (M = Mg, Ca; m, n = 0-2) obtained by quantum chemical methods. The density functional theory (DFT) and time-dependent (TD)-DFT methods were used with the PBE0 functional to optimize the structures in the ground and excited states, respectively, including relativistic effects at the spin-free level, and water solvent effects using a continuum polarizable conductor model. The changctra showed a very good agreement with experimental band positions and band spacing attributed to MgUO2(CO3)32-, CaUO2(CO3)32-, and Ca2UO2(CO3)3. The evolution of luminescence intensities with the number of alkaline earth metal ions in the structure was also correctly reproduced.Here we report the synthesis and structural characterization of heterotrimetallic (PtII2PdII2MnII2) n coordination polymers that show different dimensionalities and electrocatalytic activities depending on chloride and bromide employed in the system. The reaction of the PtII2PdII2 tetranuclear complex [Pd2Pt2(NH3)4(d-pen)4] (1), bearing free carboxylate groups, with Mn2+ in the presence of chloride produced the (PtII2PdII2MnII2) n coordination polymer [Mn2Cl2(H2O)6(1)]Cl2 (2 Cl ), in which the PtII2PdII2 units of 1 are linked by [MnCl(H2O)3]+ moieties in a 12 ratio to form a 2D sheetlike structure. The corresponding reaction in the presence of bromide also gave the (PtII2PdII2MnII2) n coordination polymer [Mn2(H2O)6(1)]Br4 (3 Br ), but 3 Br adopted a 3D network structure via a 11 linkage of the PtII2PdII2 units with [Mn2(H2O)6]4+ moieties. These complexes showed appreciably different electrocatalytic activities for H2 evolution.Two novel fac-Re(CO)3-based rectangles [(CO) 3 Re(μ-Cl) 2 Re(CO) 3 ] 2 (μ-L) 2 (1) and [(CO) 3 Re(μ-OC4H9) 2 Re(CO) 3 ] 2 (μ-L) 2 (2) based on new photochromic dithienylethene-containing ligand 2,7-di(pyridin-4-yl)-9,10-bis(5-chloro-2-methylthien-3-yl)-phenanthrene (L) were prepared. They displayed varying photochromic properties both in solution and in the single-crystal state. Through a judicious choice of the bridging ligands along the short sides of the rectangles, the photophysical and electrochemical properties of the complexes could also be readily tuned.0 Comments 0 Shares 57 Views 0 Reviews -
To examine the relationship between patterns of alcohol use, as determined by the Alcohol Use Disorders Identification Test, and vehicle control measures in high fidelity driving simulation among adult sober drivers.
Baseline data (BAC = 0.00%; N = 108) from a larger study aimed at using high-fidelity driving simulation (National Advanced Driving Simulator) to evaluate the feasibility of vehicle-based sensors to identify alcohol impairment were analyzed. Driving simulation scenarios included driving on urban, interstate, and rural roadways. The independent variable was the pattern of alcohol use measured with the Alcohol Use Disorder Identification Test (AUDIT). Dependent variables included one lateral vehicle control measure (i.e., standard deviation of lane position (SDLP)) and one longitudinal vehicle control measure (i.e., average speed relative to the speed limit) in high fidelity driving simulation. Multivariable linear regression was used to examine the associations between patterns of alcohol use ically oriented alcohol-misuse prevention efforts.
The findings support our hypothesis that the AUDIT score and responses to individual AUDIT questions, among sober drivers, relates to vehicle control measures. Overall, our data highlight two important themes 1) a need to further integrate alcohol use metrics with high-fidelity driving simulation studies to understand how drinking experience can relate to driver behavior and vehicle control and 2) the opportunity to integrate clinical perspectives with driving simulation research to strengthen clinically oriented alcohol-misuse prevention efforts.The assumptions people make from body shape can have serious implications for the well-being of the individuals inhabiting such bodies. Fat people are subject to pervasive and resilient social stigma and discrimination, leading to negative mental and physical health outcomes, including negative sexuality-related outcomes. Though previous studies have examined the personality traits attributed to, or the sexual attractiveness of, varying body shapes, no research has asked participants to make attributions of sexual traits to varying body shapes. The purpose of this study was thus to examine sexuality-related trait inferences made from body shapes. Participants (N = 891, 70% women, Mage = 25.28) were randomly assigned to view 5 computer-generated 3-dimensional body models of varying shapes developed using the skinned multi-person linear model. Participants rated their sexual attraction to each body and the degree to which each of 30 traits (10 personality and 20 sexual) applied. Results demonstrated that larger bodies are generally viewed as less sexually attractive. Further, constellations of sexuality traits were predicted reliably by body shape, demonstrating that people hold sexual stereotypes about a diverse range of body shapes. This study provides an initial comprehensive demonstration of the sexuality-specific traits associated with varying body shapes.
This study aims to evaluate the assumption of geometric similitude inherent to equal-stress equal-velocity scaling by determining if scale factors created with different anthropometry metrics result in different scaled injury tolerance predictions. This assumption will be evaluated when equal-stress equal-velocity scaling is employed across dissimilar (e.g., 50
male to small female) and similar (e.g., small female to a reference small female anthropometry) anthropometries.
Three average male and three small female lower extremity specimens that were tested in ankle inversion/eversion were selected for scaling analysis. Three additional female specimens were selected as a reference dataset, such that the accuracy of the scaled data could be compared to an independent measured dataset. The failure moments, total height and total weight for these donors were determined from literature. Additional anthropometry metrics (leg length, calcaneus height, and bimalleolar width) were taken from each of their respeand therefore, anthropometry metrics used to create scale factors should be justified mechanistically and shown to apply across size and sex before being employed.
The objective of this study was to describe pedestrian demographic characteristics, crash characteristics, selected health outcomes, and injury patterns by age using linked North Carolina (NC) crash-emergency department (ED) visit data for the period October 1, 2010, to September 30, 2015.
This was a descriptive epidemiologic study. To examine both crash and health outcomes, NC pedestrian crash records were linked to statewide NC ED visit records using hierarchical deterministic methods. Pearson chi-square tests were used to compare the frequencies of pedestrians treated in NC EDs by sex, race/ethnicity, crash location, rurality, estimated driver speed at impact, ambient light, hospitalization/death, location of injury, and nature of injury, stratified by the following age groups 0-14, 15-24, 25-64, and ≥65 years.
Most pedestrians treated in NC EDs were male (57.5%), except among adults ≥65 years old (47.5%). https://www.selleckchem.com/products/ex229-compound-991.html Over half of all injured pedestrians aged 0-14 (52.6%) and 15-24 (50.5%) years were Black/Africatic brain injuries (11.4%) and superficial wounds and contusions (62.8%). Adults aged ≥65 years had the highest proportion of open wounds/amputations and fractures (16.1%). Adults aged 25-64 years had the highest proportion of strains/sprains/dislocations (18.7%).
There were considerable differences in demographic characteristics, crash characteristics, frequency of hospitalization/death, and injury patterns by age group. It is important to design streets and implement transportation policies and programs that improve safety for all pedestrians.
There were considerable differences in demographic characteristics, crash characteristics, frequency of hospitalization/death, and injury patterns by age group. It is important to design streets and implement transportation policies and programs that improve safety for all pedestrians.
The objective of this study was to investigate the effect of chin-to-chest contact on upper neck axial force in United Nations (UN) Regulation No. 129 frontal impact tests of child restraint systems.
Frontal impact pilot experiments were carried out according to the test procedure in UN Regulation No. 129. Q-Series child dummies were seated in a small convenience sample of forward-facing child restraint systems. The timing and duration of chin-to-chest contact were determined using the procedure for calculating external head impact force in SAE J2052.
Chin-to-chest contact was observed in all of our experiments and generated a tensile peak in the upper neck axial force of the Q-Series dummies. Prior to chin-to-chest contact, a purely inertial, noncontact peak was observed in the axial tension force. The tensile peak due to chin-to-chest contact was often greater than the inertial, noncontact peak force.
Chin-to-chest contact can increase axial neck tension force beyond the level it would reach under purely inertial loading.
To examine the relationship between patterns of alcohol use, as determined by the Alcohol Use Disorders Identification Test, and vehicle control measures in high fidelity driving simulation among adult sober drivers. Baseline data (BAC = 0.00%; N = 108) from a larger study aimed at using high-fidelity driving simulation (National Advanced Driving Simulator) to evaluate the feasibility of vehicle-based sensors to identify alcohol impairment were analyzed. Driving simulation scenarios included driving on urban, interstate, and rural roadways. The independent variable was the pattern of alcohol use measured with the Alcohol Use Disorder Identification Test (AUDIT). Dependent variables included one lateral vehicle control measure (i.e., standard deviation of lane position (SDLP)) and one longitudinal vehicle control measure (i.e., average speed relative to the speed limit) in high fidelity driving simulation. Multivariable linear regression was used to examine the associations between patterns of alcohol use ically oriented alcohol-misuse prevention efforts. The findings support our hypothesis that the AUDIT score and responses to individual AUDIT questions, among sober drivers, relates to vehicle control measures. Overall, our data highlight two important themes 1) a need to further integrate alcohol use metrics with high-fidelity driving simulation studies to understand how drinking experience can relate to driver behavior and vehicle control and 2) the opportunity to integrate clinical perspectives with driving simulation research to strengthen clinically oriented alcohol-misuse prevention efforts.The assumptions people make from body shape can have serious implications for the well-being of the individuals inhabiting such bodies. Fat people are subject to pervasive and resilient social stigma and discrimination, leading to negative mental and physical health outcomes, including negative sexuality-related outcomes. Though previous studies have examined the personality traits attributed to, or the sexual attractiveness of, varying body shapes, no research has asked participants to make attributions of sexual traits to varying body shapes. The purpose of this study was thus to examine sexuality-related trait inferences made from body shapes. Participants (N = 891, 70% women, Mage = 25.28) were randomly assigned to view 5 computer-generated 3-dimensional body models of varying shapes developed using the skinned multi-person linear model. Participants rated their sexual attraction to each body and the degree to which each of 30 traits (10 personality and 20 sexual) applied. Results demonstrated that larger bodies are generally viewed as less sexually attractive. Further, constellations of sexuality traits were predicted reliably by body shape, demonstrating that people hold sexual stereotypes about a diverse range of body shapes. This study provides an initial comprehensive demonstration of the sexuality-specific traits associated with varying body shapes. This study aims to evaluate the assumption of geometric similitude inherent to equal-stress equal-velocity scaling by determining if scale factors created with different anthropometry metrics result in different scaled injury tolerance predictions. This assumption will be evaluated when equal-stress equal-velocity scaling is employed across dissimilar (e.g., 50 male to small female) and similar (e.g., small female to a reference small female anthropometry) anthropometries. Three average male and three small female lower extremity specimens that were tested in ankle inversion/eversion were selected for scaling analysis. Three additional female specimens were selected as a reference dataset, such that the accuracy of the scaled data could be compared to an independent measured dataset. The failure moments, total height and total weight for these donors were determined from literature. Additional anthropometry metrics (leg length, calcaneus height, and bimalleolar width) were taken from each of their respeand therefore, anthropometry metrics used to create scale factors should be justified mechanistically and shown to apply across size and sex before being employed. The objective of this study was to describe pedestrian demographic characteristics, crash characteristics, selected health outcomes, and injury patterns by age using linked North Carolina (NC) crash-emergency department (ED) visit data for the period October 1, 2010, to September 30, 2015. This was a descriptive epidemiologic study. To examine both crash and health outcomes, NC pedestrian crash records were linked to statewide NC ED visit records using hierarchical deterministic methods. Pearson chi-square tests were used to compare the frequencies of pedestrians treated in NC EDs by sex, race/ethnicity, crash location, rurality, estimated driver speed at impact, ambient light, hospitalization/death, location of injury, and nature of injury, stratified by the following age groups 0-14, 15-24, 25-64, and ≥65 years. Most pedestrians treated in NC EDs were male (57.5%), except among adults ≥65 years old (47.5%). https://www.selleckchem.com/products/ex229-compound-991.html Over half of all injured pedestrians aged 0-14 (52.6%) and 15-24 (50.5%) years were Black/Africatic brain injuries (11.4%) and superficial wounds and contusions (62.8%). Adults aged ≥65 years had the highest proportion of open wounds/amputations and fractures (16.1%). Adults aged 25-64 years had the highest proportion of strains/sprains/dislocations (18.7%). There were considerable differences in demographic characteristics, crash characteristics, frequency of hospitalization/death, and injury patterns by age group. It is important to design streets and implement transportation policies and programs that improve safety for all pedestrians. There were considerable differences in demographic characteristics, crash characteristics, frequency of hospitalization/death, and injury patterns by age group. It is important to design streets and implement transportation policies and programs that improve safety for all pedestrians. The objective of this study was to investigate the effect of chin-to-chest contact on upper neck axial force in United Nations (UN) Regulation No. 129 frontal impact tests of child restraint systems. Frontal impact pilot experiments were carried out according to the test procedure in UN Regulation No. 129. Q-Series child dummies were seated in a small convenience sample of forward-facing child restraint systems. The timing and duration of chin-to-chest contact were determined using the procedure for calculating external head impact force in SAE J2052. Chin-to-chest contact was observed in all of our experiments and generated a tensile peak in the upper neck axial force of the Q-Series dummies. Prior to chin-to-chest contact, a purely inertial, noncontact peak was observed in the axial tension force. The tensile peak due to chin-to-chest contact was often greater than the inertial, noncontact peak force. Chin-to-chest contact can increase axial neck tension force beyond the level it would reach under purely inertial loading.0 Comments 0 Shares 78 Views 0 Reviews -
In conclusion, OSER1-AS1 promoted gefitinib resistance of lung adenocarcinoma through the miR-612/FOXM1 axis.Arterial stiffness is an effective predictor of atherosclerosis. Measurement of pulse-wave velocity (PWV) is a gold-standard approach to study arterial stiffness. This study aims to examine arterial stiffness and heart functions via echocardiography at an early stage of atherosclerosis. A model of atherosclerosis in ApoE-knockout (ApoE-/- ) **** fed on high-fat diet (HFD) was used, with normal chow diet (ND) as a control. Stiffness of aortic arch and carotid arteries and left ventricular (LV) systolic/diastolic functions were measured by echocardiography. The plasma cholesterol levels and atherosclerotic plaque areas in the aortas were measured. The PWV values of aortic arch and carotid arteries were compared at 2, 4, 6 and 8 weeks with different diets. https://www.selleckchem.com/products/XL184.html Compared with ND ****, PWV values in aortic arch and carotid arteries were significantly increased in HFD **** after 8 weeks (Aortic arch 516.65 ± 216.89 cm/s vs. 192.53 ± 71.71 cm/s; Carotid arteries 514.26 ± 211.01 cm/s vs. 188.03 ± 75.14 cm/s, respectively; both P less then 0.01) accompanied by the decrease in LV systolic/diastolic functions. These were well correlated with the increase in plasma cholesterol levels. Echo-based PWV measurement in the aortic arch was found more sensitive to predict atherosclerosis than in the carotid arteries in ApoE-/- ****. Measuring aortic arch PWV via echocardiography could represent a new diagnostic strategy for early detection of atherosclerosis.Random skin ***** have been widely applied in reconstructive and plastic surgery; however, necrosis usually happens due to insufficient blood supply in the ischemic area of *****. Curcumin (CUR) is a primary bioactive compound of turmeric (Curcuma longa, L.), which has been proven to be effective on anticancer, decreasing oxidative stress and apoptosis through activating autophagy, and promoting angiogenesis in ischemic tissue. Therefore, the potential therapeutic effect of CUR on promoting survival of ischemic random skin ***** and its underlying mechanism associated with autophagy were investigated. After establishment of dorsal random skin *****, sixty **** were randomly divided into three groups Control, CUR or CUR+3-methyladenine (3-MA, an autophagy inhibitor). The results showed that CUR increased the viability area and blood flow as well as relieved the edema of skin ***** through promoting angiogenesis, decreasing oxidative stress, and inhibiting apoptosis of the ischemic area. Further study confirmed that CUR activated autophagy in the random skin *****, and 3-MA effectively reversed the effect on viability, neovascularization, oxidative stress and apoptosis, suggesting autophagy played a vital role in these CUR's protective effect on random skin *****. Moreover, this CUR-induced autophagy should be mediated through downregulating the PI3K/AKT/mTOR signaling pathway. Together with secondary response of increased angiogenesis, reduced oxidative stress and apoptosis, CUR effectively improved survival of random skin ***** in vivo. To sum up, our research showed the great potential of CUR using as a promising flap protective therapy for random skin flap survival and regeneration.Infantile haemangiomas (IH) are the most common soft-tissue tumours in infants. Several studies have demonstrated the importance of circular RNA (circRNA) for the regulation of various cancer cells. The present study aims to evaluate the functions and molecular mechanisms of circATP5SL in IH progression. In this study, we found that circATP5SL is significantly dysregulated in IH. We conducted Transwell, MTT, and flow cytometry analysis to evaluate the role of circATP5SL in IH cell proliferation, invasion, migration, and apoptosis. Meanwhile, by using subcellular distribution detection, as well as dual-luciferase reporter test and RIP analysis, it has been confirmed that miR-873-5p directly binds to the 3'UTR of IGF1R mRNA, thereby inhibiting the expression of IGF1R. Besides, circATP5SL promoted IGF1R expression by directly adsorbing miR-873-5p, an IGF1R inhibitor, thereby promoting cellular invasion, proliferation, and migration as well as inhibition of apoptosis. In summary, our study suggests that circATP5SL promotes IH progression by regulating IGF1R expression through adsorption of miR-873-5p, elucidating circATP5SL as a promising therapeutic target for the prognostication and treatment of IH.
There remains a scarcity of both autografts and allografts for tracheal transplantation after long-segmental resection. Subsequently, tissue engineering has become a promising alternative for tracheal transplantation, which requires successful
chondrogenesis.
To optimize the protocol for
chondrogenesis using the pig-derived whole Umbilical Cord (UC) as the starting material, it must be performed without using the UC-multipotent stromal cell (****) isolation procedure. Nevertheless, chondrogenic induction is performed under a variety of conditions; with or without TGF-β1 at different concentrations, and also in combination with either a rotatory or hollow organ bioreactor. The engineered explant sections were analyzed using various histochemical and immunohistochemical stains to assess the expression of chondrocyte markers. Cell viability was determined through use of the APO-BrdU TUNEL assay kit.
The results showed that culture conditions induced heterogeneous chondrogenesis in various compartments of the UC. Moreover, explants cultured with 10 ng/ml TGF-β1 under hypoxic (1% O
) in combination with a bioreactor, significantly enhanced the expression of aggrecan and type II collagen, but were lacking in the production of Glycosaminoglycans (GAGs), as evidenced by alcian blue staining. We speculated that whole segment UCs allowed for the differentiation into premature chondrocytes in our tissue-engineered environments.
This study has provided exciting preliminary evidence showing that a stem cell-rich UC wrapped around an anatomical tracheal scaffold and implanted in vivo can induce nodes of new cartilage growth into a structurally functional tissue for the repairing of long-segmental tracheal stenosis.
This study has provided exciting preliminary evidence showing that a stem cell-rich UC wrapped around an anatomical tracheal scaffold and implanted in vivo can induce nodes of new cartilage growth into a structurally functional tissue for the repairing of long-segmental tracheal stenosis.
In conclusion, OSER1-AS1 promoted gefitinib resistance of lung adenocarcinoma through the miR-612/FOXM1 axis.Arterial stiffness is an effective predictor of atherosclerosis. Measurement of pulse-wave velocity (PWV) is a gold-standard approach to study arterial stiffness. This study aims to examine arterial stiffness and heart functions via echocardiography at an early stage of atherosclerosis. A model of atherosclerosis in ApoE-knockout (ApoE-/- ) mice fed on high-fat diet (HFD) was used, with normal chow diet (ND) as a control. Stiffness of aortic arch and carotid arteries and left ventricular (LV) systolic/diastolic functions were measured by echocardiography. The plasma cholesterol levels and atherosclerotic plaque areas in the aortas were measured. The PWV values of aortic arch and carotid arteries were compared at 2, 4, 6 and 8 weeks with different diets. https://www.selleckchem.com/products/XL184.html Compared with ND mice, PWV values in aortic arch and carotid arteries were significantly increased in HFD mice after 8 weeks (Aortic arch 516.65 ± 216.89 cm/s vs. 192.53 ± 71.71 cm/s; Carotid arteries 514.26 ± 211.01 cm/s vs. 188.03 ± 75.14 cm/s, respectively; both P less then 0.01) accompanied by the decrease in LV systolic/diastolic functions. These were well correlated with the increase in plasma cholesterol levels. Echo-based PWV measurement in the aortic arch was found more sensitive to predict atherosclerosis than in the carotid arteries in ApoE-/- mice. Measuring aortic arch PWV via echocardiography could represent a new diagnostic strategy for early detection of atherosclerosis.Random skin flaps have been widely applied in reconstructive and plastic surgery; however, necrosis usually happens due to insufficient blood supply in the ischemic area of flaps. Curcumin (CUR) is a primary bioactive compound of turmeric (Curcuma longa, L.), which has been proven to be effective on anticancer, decreasing oxidative stress and apoptosis through activating autophagy, and promoting angiogenesis in ischemic tissue. Therefore, the potential therapeutic effect of CUR on promoting survival of ischemic random skin flaps and its underlying mechanism associated with autophagy were investigated. After establishment of dorsal random skin flaps, sixty mice were randomly divided into three groups Control, CUR or CUR+3-methyladenine (3-MA, an autophagy inhibitor). The results showed that CUR increased the viability area and blood flow as well as relieved the edema of skin flaps through promoting angiogenesis, decreasing oxidative stress, and inhibiting apoptosis of the ischemic area. Further study confirmed that CUR activated autophagy in the random skin flaps, and 3-MA effectively reversed the effect on viability, neovascularization, oxidative stress and apoptosis, suggesting autophagy played a vital role in these CUR's protective effect on random skin flaps. Moreover, this CUR-induced autophagy should be mediated through downregulating the PI3K/AKT/mTOR signaling pathway. Together with secondary response of increased angiogenesis, reduced oxidative stress and apoptosis, CUR effectively improved survival of random skin flaps in vivo. To sum up, our research showed the great potential of CUR using as a promising flap protective therapy for random skin flap survival and regeneration.Infantile haemangiomas (IH) are the most common soft-tissue tumours in infants. Several studies have demonstrated the importance of circular RNA (circRNA) for the regulation of various cancer cells. The present study aims to evaluate the functions and molecular mechanisms of circATP5SL in IH progression. In this study, we found that circATP5SL is significantly dysregulated in IH. We conducted Transwell, MTT, and flow cytometry analysis to evaluate the role of circATP5SL in IH cell proliferation, invasion, migration, and apoptosis. Meanwhile, by using subcellular distribution detection, as well as dual-luciferase reporter test and RIP analysis, it has been confirmed that miR-873-5p directly binds to the 3'UTR of IGF1R mRNA, thereby inhibiting the expression of IGF1R. Besides, circATP5SL promoted IGF1R expression by directly adsorbing miR-873-5p, an IGF1R inhibitor, thereby promoting cellular invasion, proliferation, and migration as well as inhibition of apoptosis. In summary, our study suggests that circATP5SL promotes IH progression by regulating IGF1R expression through adsorption of miR-873-5p, elucidating circATP5SL as a promising therapeutic target for the prognostication and treatment of IH. There remains a scarcity of both autografts and allografts for tracheal transplantation after long-segmental resection. Subsequently, tissue engineering has become a promising alternative for tracheal transplantation, which requires successful chondrogenesis. To optimize the protocol for chondrogenesis using the pig-derived whole Umbilical Cord (UC) as the starting material, it must be performed without using the UC-multipotent stromal cell (MSCs) isolation procedure. Nevertheless, chondrogenic induction is performed under a variety of conditions; with or without TGF-β1 at different concentrations, and also in combination with either a rotatory or hollow organ bioreactor. The engineered explant sections were analyzed using various histochemical and immunohistochemical stains to assess the expression of chondrocyte markers. Cell viability was determined through use of the APO-BrdU TUNEL assay kit. The results showed that culture conditions induced heterogeneous chondrogenesis in various compartments of the UC. Moreover, explants cultured with 10 ng/ml TGF-β1 under hypoxic (1% O ) in combination with a bioreactor, significantly enhanced the expression of aggrecan and type II collagen, but were lacking in the production of Glycosaminoglycans (GAGs), as evidenced by alcian blue staining. We speculated that whole segment UCs allowed for the differentiation into premature chondrocytes in our tissue-engineered environments. This study has provided exciting preliminary evidence showing that a stem cell-rich UC wrapped around an anatomical tracheal scaffold and implanted in vivo can induce nodes of new cartilage growth into a structurally functional tissue for the repairing of long-segmental tracheal stenosis. This study has provided exciting preliminary evidence showing that a stem cell-rich UC wrapped around an anatomical tracheal scaffold and implanted in vivo can induce nodes of new cartilage growth into a structurally functional tissue for the repairing of long-segmental tracheal stenosis.0 Comments 0 Shares 80 Views 0 Reviews -
Hashimotova tyreoiditida je chronické orgánově specifické autoimunitní onemocnění. Je charakterizována tvorbou autoprotilátek proti antigenům štítné žlázy s její lymfocytární infiltrací, vede k postupné destrukci funkčního parenchymu žlázy. Onemocnění je nejčastější příčinou vzniku hypotyreózy v oblastech, kde není dostatek jódu. Jeho etiologie není dosud přesně objasněna, často se u pacientů vyskytuje současně s dalšími autoimunitními poruchami, byl pozorován i jeho familiární výskyt. Bývá spojeno se zvýšeným rizikem rozvoje nádorového onemocnění štítné žlázy. Léčba je většinou konzervativní, chirurgický výkon bývá indikován při podezření na malignitu, nebo pokud se u pacientů vytvoří objemná struma působící mechanický útlak.The anatomical structures of the tubercle of Zuckerkandl (TZ) and the ligament of Berry (LB) have been known since the turn of the 20th century. The importance of the relationship between these structures and the thyroid gland was pointed out in the first half of the last century; nevertheless, it was neglected by most of the then surgeons. An increased interest of surgeons in detailed knowledge of these structures could only be observed from the 80´s of the last century in connection with guidelines for radical surgical treatments of the gland (both for benign and malignant diseases) and with the need to enhance the safety of these treatments. The knowledge of these two important structures and the skill of an exact surgical technique are necessary for the protection of the recurrent laryngeal nerve and the parathyroid glands, and also for the actual removal of the entire thyroid gland. Thyroid surgeons must keep in mind the existence of many anatomical and pathological variations in these regions, which makes the preparation of the gland so delicate.On 8 June 1972, the Czechoslovak OK DNN aircraft carrier L410 Turbolet was delivered to the regular line Marianske Lazne - Prague to the Federal Republic of Germany. About 8 minutes after the launch from Marianske Lazne Airport, the likely head of the group of kidnappers threw the captain of the plane. During the fight with one of the passenger, the head of the group of kidnappers killed the captain of the aircraft by a shot from 7.65 mm pistol. Other members of the hijackers group attacked other passengers. After the aircraft captains death, the second pilot took command and landed at the sports club at Weiden. After the landing, the kidnappers were detained by the police. Ten kidnappers stayed in the Federal Republic of Germany. An airplane with other passengers and coffin of a shot captain landed in Prague Ruzyne the following day. On June 12, 1972, the re-autopsy of the captain of the aircraft was performed at the Central Military Hospital in Prague. Post-autopsy status was detected. https://www.selleckchem.com/products/zasocitinib.html In this re-autopsy, i the left cabin wall. More natural would be turning right over his right shoulder. In that case, he could be hit on the right side of the chest. The shooting kidnapper committed suicide in a cell overnight from 12 to 13 January 1973. It is not possible, based on the information available, to decide exactly how the gunshot has been going on. Czech experts did not have clothing of the captain or conclusions about their examination, and the hole on the left side of the neck was cut out by the German expert and was not provided to the Czech party through the request. It may be considered strange that the autopsy in Germany was performed in this relatively serious case outside the renowned forensic medicine department.In the Czech Republic, 1 500 suicides are committed in average per year approximately. Only in a small percentage has been used vehicle as a tool. Prove suicidal intent in a fatal road accident has been difficult, but mostly these accidents have similar characteristics - impact with tree or similar fixed obstacle, non - use of seat belt, absence of brake traces, etc. The aim of this paper is to present and analyse two almost identical traffic accidents - identical location, identical vehicle type. While one of these was fatal (but not proven suicide), the second accident was not fatal, but with suicidal intent. Data were obtained as a part of the Czech In-depth Study conducted by Transport Research Centre. Data from In-depth Accident Analysis provide a comprehensive view of all the factors related to a particular accident and serve to identify the characteristics leading to the crash occurrence.A crime scene is the result of the dynamic interrelation of various factors. Where a fatality is involved, thorough analysis of the scene by a forensic pathologist produces the first data for verifying consistency between the necropsy results and witness testimonies toward defining the dynamics of injury and death. This step is extremely important in identifying any liability. We present the case of a construction worker who fell through a trapdoor between two floors while holding an iron beam at a building site. This case demonstrates the effectiveness of an integrated approach, using both classic forensic investigation techniques and digital 3-D reconstruction it allowed verification of the dynamics of the injury and provided important information in assessing the employers liability.The Czech Head and Neck Cancer Cooperative Group (CHNCCG) held a meeting in Tabor on 11-12 October 2019 with the aim of reaching an interdisciplinary consensus on some controversial points where international unity is absent. The meeting resulted in recommendations on resection margin size terminology (definition of terms negative margin, close margin and positive margin) and on the adoption of terminology for neck dissections reporting according to the International Recommendation of the International Head and Neck Scientific Group and on assessment of HPV/p16 status in head and neck tumors.Fabry disease is a rare X-linked hereditary storage disease caused by a mutation of the gene encoding alpha-galactosidase A. The clinical manifestation of the classical disease form is variable depending on the degree of individual organs involvement, including especially kidney, myocardium, central nervous system (CNS) and skin. We report a case of a 51-year-old man whose diagnostic manifestation was cardiac involvement leading to endomyocardial biopsy, which significantly contributed to the diagnosis. Although at that time he was already 9 years dependent on dialysis with terminal renal failure.
Hashimotova tyreoiditida je chronické orgánově specifické autoimunitní onemocnění. Je charakterizována tvorbou autoprotilátek proti antigenům štítné žlázy s její lymfocytární infiltrací, vede k postupné destrukci funkčního parenchymu žlázy. Onemocnění je nejčastější příčinou vzniku hypotyreózy v oblastech, kde není dostatek jódu. Jeho etiologie není dosud přesně objasněna, často se u pacientů vyskytuje současně s dalšími autoimunitními poruchami, byl pozorován i jeho familiární výskyt. Bývá spojeno se zvýšeným rizikem rozvoje nádorového onemocnění štítné žlázy. Léčba je většinou konzervativní, chirurgický výkon bývá indikován při podezření na malignitu, nebo pokud se u pacientů vytvoří objemná struma působící mechanický útlak.The anatomical structures of the tubercle of Zuckerkandl (TZ) and the ligament of Berry (LB) have been known since the turn of the 20th century. The importance of the relationship between these structures and the thyroid gland was pointed out in the first half of the last century; nevertheless, it was neglected by most of the then surgeons. An increased interest of surgeons in detailed knowledge of these structures could only be observed from the 80´s of the last century in connection with guidelines for radical surgical treatments of the gland (both for benign and malignant diseases) and with the need to enhance the safety of these treatments. The knowledge of these two important structures and the skill of an exact surgical technique are necessary for the protection of the recurrent laryngeal nerve and the parathyroid glands, and also for the actual removal of the entire thyroid gland. Thyroid surgeons must keep in mind the existence of many anatomical and pathological variations in these regions, which makes the preparation of the gland so delicate.On 8 June 1972, the Czechoslovak OK DNN aircraft carrier L410 Turbolet was delivered to the regular line Marianske Lazne - Prague to the Federal Republic of Germany. About 8 minutes after the launch from Marianske Lazne Airport, the likely head of the group of kidnappers threw the captain of the plane. During the fight with one of the passenger, the head of the group of kidnappers killed the captain of the aircraft by a shot from 7.65 mm pistol. Other members of the hijackers group attacked other passengers. After the aircraft captains death, the second pilot took command and landed at the sports club at Weiden. After the landing, the kidnappers were detained by the police. Ten kidnappers stayed in the Federal Republic of Germany. An airplane with other passengers and coffin of a shot captain landed in Prague Ruzyne the following day. On June 12, 1972, the re-autopsy of the captain of the aircraft was performed at the Central Military Hospital in Prague. Post-autopsy status was detected. https://www.selleckchem.com/products/zasocitinib.html In this re-autopsy, i the left cabin wall. More natural would be turning right over his right shoulder. In that case, he could be hit on the right side of the chest. The shooting kidnapper committed suicide in a cell overnight from 12 to 13 January 1973. It is not possible, based on the information available, to decide exactly how the gunshot has been going on. Czech experts did not have clothing of the captain or conclusions about their examination, and the hole on the left side of the neck was cut out by the German expert and was not provided to the Czech party through the request. It may be considered strange that the autopsy in Germany was performed in this relatively serious case outside the renowned forensic medicine department.In the Czech Republic, 1 500 suicides are committed in average per year approximately. Only in a small percentage has been used vehicle as a tool. Prove suicidal intent in a fatal road accident has been difficult, but mostly these accidents have similar characteristics - impact with tree or similar fixed obstacle, non - use of seat belt, absence of brake traces, etc. The aim of this paper is to present and analyse two almost identical traffic accidents - identical location, identical vehicle type. While one of these was fatal (but not proven suicide), the second accident was not fatal, but with suicidal intent. Data were obtained as a part of the Czech In-depth Study conducted by Transport Research Centre. Data from In-depth Accident Analysis provide a comprehensive view of all the factors related to a particular accident and serve to identify the characteristics leading to the crash occurrence.A crime scene is the result of the dynamic interrelation of various factors. Where a fatality is involved, thorough analysis of the scene by a forensic pathologist produces the first data for verifying consistency between the necropsy results and witness testimonies toward defining the dynamics of injury and death. This step is extremely important in identifying any liability. We present the case of a construction worker who fell through a trapdoor between two floors while holding an iron beam at a building site. This case demonstrates the effectiveness of an integrated approach, using both classic forensic investigation techniques and digital 3-D reconstruction it allowed verification of the dynamics of the injury and provided important information in assessing the employers liability.The Czech Head and Neck Cancer Cooperative Group (CHNCCG) held a meeting in Tabor on 11-12 October 2019 with the aim of reaching an interdisciplinary consensus on some controversial points where international unity is absent. The meeting resulted in recommendations on resection margin size terminology (definition of terms negative margin, close margin and positive margin) and on the adoption of terminology for neck dissections reporting according to the International Recommendation of the International Head and Neck Scientific Group and on assessment of HPV/p16 status in head and neck tumors.Fabry disease is a rare X-linked hereditary storage disease caused by a mutation of the gene encoding alpha-galactosidase A. The clinical manifestation of the classical disease form is variable depending on the degree of individual organs involvement, including especially kidney, myocardium, central nervous system (CNS) and skin. We report a case of a 51-year-old man whose diagnostic manifestation was cardiac involvement leading to endomyocardial biopsy, which significantly contributed to the diagnosis. Although at that time he was already 9 years dependent on dialysis with terminal renal failure.0 Comments 0 Shares 80 Views 0 Reviews -
The TSTS group and the STS group showed significant improvements in spasticity, muscle strength, walking speed, and quality of life after the intervention (p < 0.05). The level of improvement in the TSTS group was significantly higher in spasticity, muscle strength, and walking speed compared to the STS group (p < 0.05).
The present study demonstrated that STS training is effective for decreasing spasticity in stroke patients and suggested that additional taping intervention further improved this effect. In addition, improvement of muscle strength and gait function was observed with a significant decrease of ankle spasticity.
The present study demonstrated that STS training is effective for decreasing spasticity in stroke patients and suggested that additional taping intervention further improved this effect. In addition, improvement of muscle strength and gait function was observed with a significant decrease of ankle spasticity.Soybean meal (SBM) and canola meal (CM) are protein supplements used in lactating dairy *** diets and, recently, an enteric methane-mitigating effect (i.e., lower Ym value) was reported for CM. https://www.selleckchem.com/products/AZD2281(Olaparib).html Before recommending CM as a greenhouse gas (GHG) mitigation strategy, it is necessary to examine the net impact on total GHG emissions from milk production. The objective was to determine whether using CM rather than SBM in lactating dairy *** diets decreases GHG per kilogram of fat and protein corrected milk (FPCM), and whether the decrease depends upon where the meals are produced. Cradle to farm-gate life cycle assessments were conducted for a simulated dairy farm in eastern (Quebec) and western (Alberta) Canada. Scenarios examined the source of protein meal, location where meals were produced, and the methane-mitigating effect of CM. The Holos model was used to estimate GHG emissions from animals, manure, crop production, imported feeds, and energy use. GHG intensities (CO2e/kg FPCM) were 0.85-1.02 in the east and 1.07-1.11 in the west for the various scenarios, with enteric methane comprising 34 to 40% of total emissions. CM produced in western Canada with a low up-stream emission factor and low Ym value reduced CO2e/kg FPCM by 3% (western farm) to 6.6% (eastern farm) compared with SBM. We conclude that using CM rather than SBM in the diet of lactating dairy cows can be a GHG mitigation strategy depending upon where it is produced and whether it decreases enteric methane emissions.Hydrogenases are abundant metalloenzymes that catalyze the reversible conversion of molecular H2 into protons and electrons. Important achievements have been made over the past two decades in the understanding of these highly complex enzymes. However, most hydrogenases have low production yields requiring many efforts and high costs for cultivation limiting their investigation. Heterologous production of these hydrogenases in a robust and genetically tractable expression host is an attractive strategy to make these enzymes more accessible. In the present study, we chose the oxygen-tolerant H2-sensing regulatory [NiFe]-hydrogenase (RH) from Ralstonia eutropha H16 owing to its relatively simple architecture compared to other [NiFe]-hydrogenases as a model to develop a heterologous hydrogenase production system in Escherichia coli. Using screening experiments in 24 deep-well plates with 3 mL working volume, we investigated relevant cultivation parameters, including inducer concentration, expression temperature, and expression time. The RH yield could be increased from 14 mg/L up to >250 mg/L by switching from a batch to an EnPresso B-based fed-batch like cultivation in shake flasks. This yield exceeds the amount of RH purified from the homologous host R. eutropha by several 100-fold. Additionally, we report the successful overproduction of the RH single subunits HoxB and HoxC, suitable for biochemical and spectroscopic investigations. Even though both RH and HoxC proteins were isolated in an inactive, cofactor free apo-form, the proposed strategy may powerfully accelerate bioprocess development and structural studies for both basic research and applied studies. These results are discussed in the context of the regulation mechanisms governing the assembly of large and small hydrogenase subunits.Many natural and artificial systems are subject to some sort of delay, which can be in the form of a single discrete delay or distributed over a range of times. Here, we discuss the impact of this distribution on (thermo-)dynamical properties of time-delayed stochastic systems. To this end, we study a simple classical model with white and colored noise, and focus on the class of Gamma-distributed delays which includes a variety of distinct delay distributions typical for feedback experiments and biological systems. A physical application is a colloid subject to time-delayed feedback control, which is, in principle, experimentally realizable by co-moving optical traps. We uncover several unexpected phenomena in regard to the system's linear stability and its thermodynamic properties. First, increasing the mean delay time can destabilize or stabilize the process, depending on the distribution of the delay. Second, for all considered distributions, the heat dissipated by the controlled system (e.g., the colloidal particle) can become negative, which implies that the delay force extracts energy and entropy of the bath. As we show here, this refrigerating effect is particularly pronounced for exponential delay. For a specific non-reciprocal realization of a control device, we find that the entropic costs, measured by the total entropy production of the system plus controller, are the lowest for exponential delay. The exponential delay further yields the largest stable parameter regions. In this sense, exponential delay represents the most effective and robust type of delayed feedback.Nuclear magnetic resonance therapy (NMRT) is discussed as a participant in repair processes regarding cartilage and as an influence in pain signaling. To substantiate the application of NMRT, the underlying mechanisms at the cellular level were studied. In this study microRNA (miR) was extracted from human primary healthy and osteoarthritis (OA) chondrocytes after NMR treatment and was sequenced by the Ion PI Hi-Q™ Sequencing 200 system. In addition, T/C-28a2 chondrocytes grown under hypoxic conditions were studied for IL-1β induced changes in expression on RNA and protein level. HDAC activity an NAD(+)/NADH was measured by luminescence detection. In OA chondrocytes miR-106a, miR-27a, miR-34b, miR-365a and miR-424 were downregulated. This downregulation was reversed by NMRT. miR-365a-5p is known to directly target HDAC and NF-ĸB, and a decrease in HDAC activity by NMRT was detected. NAD+/NADH was reduced by NMR treatment in OA chondrocytes. Under hypoxic conditions NMRT changed the expression profile of HIF1, HIF2, IGF2, MMP3, MMP13, and RUNX1.
The TSTS group and the STS group showed significant improvements in spasticity, muscle strength, walking speed, and quality of life after the intervention (p < 0.05). The level of improvement in the TSTS group was significantly higher in spasticity, muscle strength, and walking speed compared to the STS group (p < 0.05). The present study demonstrated that STS training is effective for decreasing spasticity in stroke patients and suggested that additional taping intervention further improved this effect. In addition, improvement of muscle strength and gait function was observed with a significant decrease of ankle spasticity. The present study demonstrated that STS training is effective for decreasing spasticity in stroke patients and suggested that additional taping intervention further improved this effect. In addition, improvement of muscle strength and gait function was observed with a significant decrease of ankle spasticity.Soybean meal (SBM) and canola meal (CM) are protein supplements used in lactating dairy cow diets and, recently, an enteric methane-mitigating effect (i.e., lower Ym value) was reported for CM. https://www.selleckchem.com/products/AZD2281(Olaparib).html Before recommending CM as a greenhouse gas (GHG) mitigation strategy, it is necessary to examine the net impact on total GHG emissions from milk production. The objective was to determine whether using CM rather than SBM in lactating dairy cow diets decreases GHG per kilogram of fat and protein corrected milk (FPCM), and whether the decrease depends upon where the meals are produced. Cradle to farm-gate life cycle assessments were conducted for a simulated dairy farm in eastern (Quebec) and western (Alberta) Canada. Scenarios examined the source of protein meal, location where meals were produced, and the methane-mitigating effect of CM. The Holos model was used to estimate GHG emissions from animals, manure, crop production, imported feeds, and energy use. GHG intensities (CO2e/kg FPCM) were 0.85-1.02 in the east and 1.07-1.11 in the west for the various scenarios, with enteric methane comprising 34 to 40% of total emissions. CM produced in western Canada with a low up-stream emission factor and low Ym value reduced CO2e/kg FPCM by 3% (western farm) to 6.6% (eastern farm) compared with SBM. We conclude that using CM rather than SBM in the diet of lactating dairy cows can be a GHG mitigation strategy depending upon where it is produced and whether it decreases enteric methane emissions.Hydrogenases are abundant metalloenzymes that catalyze the reversible conversion of molecular H2 into protons and electrons. Important achievements have been made over the past two decades in the understanding of these highly complex enzymes. However, most hydrogenases have low production yields requiring many efforts and high costs for cultivation limiting their investigation. Heterologous production of these hydrogenases in a robust and genetically tractable expression host is an attractive strategy to make these enzymes more accessible. In the present study, we chose the oxygen-tolerant H2-sensing regulatory [NiFe]-hydrogenase (RH) from Ralstonia eutropha H16 owing to its relatively simple architecture compared to other [NiFe]-hydrogenases as a model to develop a heterologous hydrogenase production system in Escherichia coli. Using screening experiments in 24 deep-well plates with 3 mL working volume, we investigated relevant cultivation parameters, including inducer concentration, expression temperature, and expression time. The RH yield could be increased from 14 mg/L up to >250 mg/L by switching from a batch to an EnPresso B-based fed-batch like cultivation in shake flasks. This yield exceeds the amount of RH purified from the homologous host R. eutropha by several 100-fold. Additionally, we report the successful overproduction of the RH single subunits HoxB and HoxC, suitable for biochemical and spectroscopic investigations. Even though both RH and HoxC proteins were isolated in an inactive, cofactor free apo-form, the proposed strategy may powerfully accelerate bioprocess development and structural studies for both basic research and applied studies. These results are discussed in the context of the regulation mechanisms governing the assembly of large and small hydrogenase subunits.Many natural and artificial systems are subject to some sort of delay, which can be in the form of a single discrete delay or distributed over a range of times. Here, we discuss the impact of this distribution on (thermo-)dynamical properties of time-delayed stochastic systems. To this end, we study a simple classical model with white and colored noise, and focus on the class of Gamma-distributed delays which includes a variety of distinct delay distributions typical for feedback experiments and biological systems. A physical application is a colloid subject to time-delayed feedback control, which is, in principle, experimentally realizable by co-moving optical traps. We uncover several unexpected phenomena in regard to the system's linear stability and its thermodynamic properties. First, increasing the mean delay time can destabilize or stabilize the process, depending on the distribution of the delay. Second, for all considered distributions, the heat dissipated by the controlled system (e.g., the colloidal particle) can become negative, which implies that the delay force extracts energy and entropy of the bath. As we show here, this refrigerating effect is particularly pronounced for exponential delay. For a specific non-reciprocal realization of a control device, we find that the entropic costs, measured by the total entropy production of the system plus controller, are the lowest for exponential delay. The exponential delay further yields the largest stable parameter regions. In this sense, exponential delay represents the most effective and robust type of delayed feedback.Nuclear magnetic resonance therapy (NMRT) is discussed as a participant in repair processes regarding cartilage and as an influence in pain signaling. To substantiate the application of NMRT, the underlying mechanisms at the cellular level were studied. In this study microRNA (miR) was extracted from human primary healthy and osteoarthritis (OA) chondrocytes after NMR treatment and was sequenced by the Ion PI Hi-Q™ Sequencing 200 system. In addition, T/C-28a2 chondrocytes grown under hypoxic conditions were studied for IL-1β induced changes in expression on RNA and protein level. HDAC activity an NAD(+)/NADH was measured by luminescence detection. In OA chondrocytes miR-106a, miR-27a, miR-34b, miR-365a and miR-424 were downregulated. This downregulation was reversed by NMRT. miR-365a-5p is known to directly target HDAC and NF-ĸB, and a decrease in HDAC activity by NMRT was detected. NAD+/NADH was reduced by NMR treatment in OA chondrocytes. Under hypoxic conditions NMRT changed the expression profile of HIF1, HIF2, IGF2, MMP3, MMP13, and RUNX1.0 Comments 0 Shares 28 Views 0 Reviews -
DMMO is an effective option to treat metatarsalgia, with variants enabling adaptation to foot morphology, but needing confirmation by studies with higher levels of evidence.
Aneurysmal bone cysts (ABCs) are locally aggressive, cystic lesions of the skeletal system, most commonly seen in the metaphyseal region of long bones. On the other hand, an ABC of the foot (especially the calcaneum) is a rare entity, with very few cases reported in the literature. In this study, we present three such cases who presented to us with the chief complaint of chronic heel pain. All three patients were clinically reviewed following which a comprehensive radiological workup was performed. The latter revealed a solitary, expansile lesion within the calcaneum in all them. Treatment included extended curettage and reconstruction using autologous iliac crest bone grafts. Histopathological analysis of the curetted sample was consistent with features of primary ABC. There were no complications and all lesions had re-ossified at the latest follow up.
Calcaneal ABCs are rare, atypical lesions warranting a high index of suspicion and correlation of the patient's clinical, radiological and histopathological features to make a correct diagnosis.
Calcaneal ABCs are rare, atypical lesions warranting a high index of suspicion and correlation of the patient's clinical, radiological and histopathological features to make a correct diagnosis.
Adult-acquired flatfoot deformity (AAFD) requires optimum planning that often requires several procedures for deformity correction. The objective of this study was to detect the difference between **** versus LCL in the management of AAFD with stage II tibialis posterior tendon dysfunction regarding functional, radiographic outcomes, efficacy in correction maintenance, and the incidence of complications.
42 Patients (21 males and 21 females) with a mean age of 49.6 years (range 43-55), 22 patients had **** while 20 had LCL. Strayer procedure, spring ligament plication, and FDL transfer were done in all patients. Pre- and Postoperative (at 3 and 12 months) clinical assessment was done using AOFAS and FFI questionnaire. Six radiographic parameters were analyzed, Talo-navicular coverage and Talo-calcaneal angle in the AP view, Talo- first metatarsus angle, Talo-calcaneal angle and calcaneal inclination angle in lateral view and tibio-calcaneal angle in the axial view, complications were reported.
At 12 monwer incidence of additional surgery than ****, however, a higher incidence of degenerative change in the hindfoot was observed with LCL.Isolated osteomyelitis of the cuboid bone is an extremely rare condition. A 32 year old man was evaluated for a painful and swollen right foot after a penetrating trauma and the presence of a sinus in the lateral aspect the midfoot. MRI findings were consistent with the presence of cuboid osteomyelitis. The patient underwent a two stage procedure which included partial excision of the cuboid bone, the use of a cemented spacer for lateral column length preservation, followed by arthrodesis of the calcaneocuboid joint with a tricortical autologous bone graft harvested from the ilium and preservation of the cuboid-metatarsal joints. At 4 years follow up, the patient is asymptomatic. https://www.selleckchem.com/products/zasocitinib.html Diagnosis of isolated cuboid osteomyelitis requires high clinical suspicion and a two stage procedure is an effective approach for symptomatic patients who do not respond to conservative treatment. LEVEL OF CLINICAL EVIDENCE IV.Giant cell tumor of the bone (GCTB) affecting foot and ankle is rare, and the literature available on their clinical behavior and reconstructive options is scarce. Many authors consider these sites a special subset with high rates of local recurrence. Eighteen patients with GCTB of foot and ankle were treated from (March 2014 to February 2020). Extended curettage was offered wherever feasible. Twelve patients underwent extended curettage, three underwent resection and reconstruction, one patient had ray amputation, one had below knee amputation. One patient with multifocal disease was treated conservatively with denosumab. There were 11 females and the mean age was 31.7 years. Distal tibia (11 patients) was the commonest location, followed by the first metatarsal (four patients). At a median follow up of 46 months, two patients out of the 17 operated had a local recurrence. GCTB affecting the foot and ankle have a clinical course comparable to those at other locations. They should be treated with a conservative approach, where radical resection and amputation are reserved for only the non-curettable tumors.Dislocations of the first metatarsophalangealjoint are rare, and recurrent dislocations unique. A national-level Kabaddi player dislocated his right first metatarsophalangeal joint while playing a game bear footed. After self-manipulative reduction, the patient had multiple dislocations. The patient reported after a year of injury with complaints of recurrent medial dislocations of the first metatarsophalangeal joint. At surgery, reconstruction of deficient lateral capsule-ligamentous structures of the first metatarsophalangeal joint was done with Palmaris longus autograft. The patient returned to sports in six months and was followed up for more than two years. The case is unique in the form that recurrent medial dislocation of first metatarsophalangeal dislocation is not described. LEVEL OF CLINICAL EVIDENCE Level V.Lisfranc injuries result if bones or ligaments that support the midfoot are torn. In children and adolescents these injuries are not only rare, but are also similar to adult Lisfranc injuries, in that they are often mistaken especially if the injury is a result of a straightforward twist and fall. The goal of surgical treatment is to realign the joints. However, few studies related to Lisfranc injuries in pediatric patients exist. A case of 15 years old patient treated using an Arthrex mini tight rope is described.
Lesions, which commonly grow and protrude beneath the distal end of a toe nail and present to the podiatrist or foot and ankle surgeon, include subungual exostosis or enchondroma and a Nora lesion. Neurothekeoma is a benign dermal tumour of the peripheral nerve sheath that usually affects the skin of the head, neck, shoulders and arms. It occurs less commonly in the lower limbs and has only been reported twice in a subungual location. A case of subungual neurothekeoma that recurred twice due to inadequate margins of resection is presented.
Although rare, neurothekeoma should be included in the differential diagnosis of a subungual lesion. Histopathological diagnosis is reached by differential immunostaining. Adequate clear margins of resection are recommended to prevent recurrence.
Although rare, neurothekeoma should be included in the differential diagnosis of a subungual lesion. Histopathological diagnosis is reached by differential immunostaining. Adequate clear margins of resection are recommended to prevent recurrence.
DMMO is an effective option to treat metatarsalgia, with variants enabling adaptation to foot morphology, but needing confirmation by studies with higher levels of evidence. Aneurysmal bone cysts (ABCs) are locally aggressive, cystic lesions of the skeletal system, most commonly seen in the metaphyseal region of long bones. On the other hand, an ABC of the foot (especially the calcaneum) is a rare entity, with very few cases reported in the literature. In this study, we present three such cases who presented to us with the chief complaint of chronic heel pain. All three patients were clinically reviewed following which a comprehensive radiological workup was performed. The latter revealed a solitary, expansile lesion within the calcaneum in all them. Treatment included extended curettage and reconstruction using autologous iliac crest bone grafts. Histopathological analysis of the curetted sample was consistent with features of primary ABC. There were no complications and all lesions had re-ossified at the latest follow up. Calcaneal ABCs are rare, atypical lesions warranting a high index of suspicion and correlation of the patient's clinical, radiological and histopathological features to make a correct diagnosis. Calcaneal ABCs are rare, atypical lesions warranting a high index of suspicion and correlation of the patient's clinical, radiological and histopathological features to make a correct diagnosis. Adult-acquired flatfoot deformity (AAFD) requires optimum planning that often requires several procedures for deformity correction. The objective of this study was to detect the difference between MDCO versus LCL in the management of AAFD with stage II tibialis posterior tendon dysfunction regarding functional, radiographic outcomes, efficacy in correction maintenance, and the incidence of complications. 42 Patients (21 males and 21 females) with a mean age of 49.6 years (range 43-55), 22 patients had MDCO while 20 had LCL. Strayer procedure, spring ligament plication, and FDL transfer were done in all patients. Pre- and Postoperative (at 3 and 12 months) clinical assessment was done using AOFAS and FFI questionnaire. Six radiographic parameters were analyzed, Talo-navicular coverage and Talo-calcaneal angle in the AP view, Talo- first metatarsus angle, Talo-calcaneal angle and calcaneal inclination angle in lateral view and tibio-calcaneal angle in the axial view, complications were reported. At 12 monwer incidence of additional surgery than MDCO, however, a higher incidence of degenerative change in the hindfoot was observed with LCL.Isolated osteomyelitis of the cuboid bone is an extremely rare condition. A 32 year old man was evaluated for a painful and swollen right foot after a penetrating trauma and the presence of a sinus in the lateral aspect the midfoot. MRI findings were consistent with the presence of cuboid osteomyelitis. The patient underwent a two stage procedure which included partial excision of the cuboid bone, the use of a cemented spacer for lateral column length preservation, followed by arthrodesis of the calcaneocuboid joint with a tricortical autologous bone graft harvested from the ilium and preservation of the cuboid-metatarsal joints. At 4 years follow up, the patient is asymptomatic. https://www.selleckchem.com/products/zasocitinib.html Diagnosis of isolated cuboid osteomyelitis requires high clinical suspicion and a two stage procedure is an effective approach for symptomatic patients who do not respond to conservative treatment. LEVEL OF CLINICAL EVIDENCE IV.Giant cell tumor of the bone (GCTB) affecting foot and ankle is rare, and the literature available on their clinical behavior and reconstructive options is scarce. Many authors consider these sites a special subset with high rates of local recurrence. Eighteen patients with GCTB of foot and ankle were treated from (March 2014 to February 2020). Extended curettage was offered wherever feasible. Twelve patients underwent extended curettage, three underwent resection and reconstruction, one patient had ray amputation, one had below knee amputation. One patient with multifocal disease was treated conservatively with denosumab. There were 11 females and the mean age was 31.7 years. Distal tibia (11 patients) was the commonest location, followed by the first metatarsal (four patients). At a median follow up of 46 months, two patients out of the 17 operated had a local recurrence. GCTB affecting the foot and ankle have a clinical course comparable to those at other locations. They should be treated with a conservative approach, where radical resection and amputation are reserved for only the non-curettable tumors.Dislocations of the first metatarsophalangealjoint are rare, and recurrent dislocations unique. A national-level Kabaddi player dislocated his right first metatarsophalangeal joint while playing a game bear footed. After self-manipulative reduction, the patient had multiple dislocations. The patient reported after a year of injury with complaints of recurrent medial dislocations of the first metatarsophalangeal joint. At surgery, reconstruction of deficient lateral capsule-ligamentous structures of the first metatarsophalangeal joint was done with Palmaris longus autograft. The patient returned to sports in six months and was followed up for more than two years. The case is unique in the form that recurrent medial dislocation of first metatarsophalangeal dislocation is not described. LEVEL OF CLINICAL EVIDENCE Level V.Lisfranc injuries result if bones or ligaments that support the midfoot are torn. In children and adolescents these injuries are not only rare, but are also similar to adult Lisfranc injuries, in that they are often mistaken especially if the injury is a result of a straightforward twist and fall. The goal of surgical treatment is to realign the joints. However, few studies related to Lisfranc injuries in pediatric patients exist. A case of 15 years old patient treated using an Arthrex mini tight rope is described. Lesions, which commonly grow and protrude beneath the distal end of a toe nail and present to the podiatrist or foot and ankle surgeon, include subungual exostosis or enchondroma and a Nora lesion. Neurothekeoma is a benign dermal tumour of the peripheral nerve sheath that usually affects the skin of the head, neck, shoulders and arms. It occurs less commonly in the lower limbs and has only been reported twice in a subungual location. A case of subungual neurothekeoma that recurred twice due to inadequate margins of resection is presented. Although rare, neurothekeoma should be included in the differential diagnosis of a subungual lesion. Histopathological diagnosis is reached by differential immunostaining. Adequate clear margins of resection are recommended to prevent recurrence. Although rare, neurothekeoma should be included in the differential diagnosis of a subungual lesion. Histopathological diagnosis is reached by differential immunostaining. Adequate clear margins of resection are recommended to prevent recurrence.0 Comments 0 Shares 86 Views 0 Reviews -
While Alzheimer disease (AD) and vascular dementia (VaD) may be accelerated by hypercholesterolemia, the mechanisms underlying this association are unclear. We tested whether dysregulation of cholesterol catabolism, through its conversion to primary bile acids (BAs), was associated with dementia pathogenesis.
We used a 3-step study design to examine the role of the primary BAs, cholic acid (CA), and chenodeoxycholic acid (CDCA) as well as their principal biosynthetic precursor, 7α-hydroxycholesterol (7α-OHC), in dementia. https://www.selleckchem.com/products/opicapone.html In Step 1, we tested whether serum markers of cholesterol catabolism were associated with brain amyloid accumulation, white matter lesions (WMLs), and brain atrophy. In Step 2, we tested whether exposure to bile acid sequestrants (BAS) was associated with risk of dementia. In Step 3, we examined plausible mechanisms underlying these findings by testing whether brain levels of primary BAs and gene expression of their principal receptors are altered in AD. Step 1 We assayed serum concentrac analysis to implicate dysregulation of cholesterol catabolism in dementia pathogenesis. We observed that lower serum BA concentration mainly in males is associated with neuroimaging markers of dementia, and pharmacological lowering of BA levels may be associated with higher risk of VaD in males. We hypothesize that dysregulation of BA signaling pathways in the brain may represent a plausible biologic mechanism underlying these results. Together, our observations suggest a novel mechanism relating abnormalities in cholesterol catabolism to risk of dementia.
Anthrax is a major but neglected zoonotic disease of public health concern in India with Odisha contributing a major share to the disease burden. Bacillus anthracis spores can be found naturally in soil and commonly affect both animals and humans around the world. Domestic and wild animals such as cattle, sheep, goats, and deer can become infected when they inhale or ingest spores from contaminated soil, plants, or water. Anthrax can be fatal if patients are not treated promptly with antibiotics. This protocol aims to describe the implementation and evaluation of the 'One Health' intervention model based on the principles of Theory of Change (ToC) to eliminate human anthrax from a tribal district in Odisha, India.
This study would test the effectiveness of a complex public health intervention package developed using the ToC framework for the elimination of human anthrax in Koraput district by a comparative analysis of baseline and end-line data. We plan to enroll 2640 adults across 14 geographically divid anthrax in India. The findings from this study will offer important insights for policy-making and further replication in other endemic regions of the state and country.
The authors confirm that all ongoing and related trials for this intervention are prospectively registered with the Clinical Trials Registry of India [CTRI/2020/05/025325] on 22 May 2020.
The authors confirm that all ongoing and related trials for this intervention are prospectively registered with the Clinical Trials Registry of India [CTRI/2020/05/025325] on 22 May 2020.
Cardiovascular disease (CVD) is a leading cause of health loss and health sector economic burdens in high-income countries. Unemployment is associated with increased risk of CVD, and so there is concern that the economic downturn associated with the COVID-19 pandemic will increase the CVD burden.
This modeling study aimed to quantify potential health loss, health cost burden and health inequities among people with CVD due to additional unemployment caused by COVID-19 pandemic-related economic disruption in one high-income country New Zealand (NZ).
We adapted an established and validated multi-state life-table model for CVD in the national NZ population. We modeled indirect effects (ie, higher CVD incidence due to high unemployment rates) for various scenarios of pandemic-related unemployment projections from the NZ Treasury.
We estimated the potential CVD-related heath loss in NZ to range from 23,300 to 36,900 health-adjusted life years (HALYs) for the different unemployment scenarios. Health inequitiary prevention of CVD.
Leishmaniasis is a neglected tropical disease caused by parasites of the genus Leishmania and is transmitted by various species of female phlebotomine sand flies. The first report of cutaneous leishmaniasis (CL) in Ghana refer to a cluster of cases in 1999-2003 in the Ho municipality of the Volta Region. We conducted an epidemiological assessment in the Oti Region, encouraged by recent reports of potential cases of CL.
Using a cross-sectional study design, the exposure to Leishmania was investigated in three communities of the Oti Region based on the leishmanin skin test (LST). LST results for 3,071 participants comprising 1091, 848, and 1132 persons from the communities of Ashiabre, Keri, and Sibi Hilltop, indicated an overall prevalence of exposure to Leishmania infection of 41.8% and individual community prevalence of 39.4%, 55.1%, and 34.2% respectively. Being male [AOR = 1.27; CI 1.09, 1.49], and living in Keri [AOR = 1.83; CI 1.43, 2.34] were associated with an increase in the odds of exposure to Leishmania. Being 5-10 years old [AOR = 1.48; CI 1.06, 2.05], 11-17 years old [AOR = 2.03; CI 1.45, 2.85], 18-40 years old [AORR = 2.83; CI 1.81, 4.43] and 41-65 years old [AOR = 5.08; CI 2.98, 8.68] were also significantly associated with increased odds of being exposed to Leishmania.
This study demonstrated exposure to Leishmania in the study communities and also identified associated factors. Future efforts aimed at reducing exposure to Leishmania infection in the study area should take the associated factors into consideration.
This study demonstrated exposure to Leishmania in the study communities and also identified associated factors. Future efforts aimed at reducing exposure to Leishmania infection in the study area should take the associated factors into consideration.Antibodies are widely used reagents to test for expression of proteins and other antigens. However, they might not always reliably produce results when they do not specifically bind to the target proteins that their providers designed them for, leading to unreliable research results. While many proposals have been developed to deal with the problem of antibody specificity, it is still challenging to cover the millions of antibodies that are available to researchers. In this study, we investigate the feasibility of automatically generating alerts to users of problematic antibodies by extracting statements about antibody specificity reported in the literature. The extracted alerts can be used to construct an "Antibody Watch" knowledge base containing supporting statements of problematic antibodies. We developed a deep neural network system and tested its performance with a corpus of more than two thousand articles that reported uses of antibodies. We divided the problem into two tasks. Given an input article, the first task is to identify snippets about antibody specificity and classify if the snippets report that any antibody exhibits non-specificity, and thus is problematic.
While Alzheimer disease (AD) and vascular dementia (VaD) may be accelerated by hypercholesterolemia, the mechanisms underlying this association are unclear. We tested whether dysregulation of cholesterol catabolism, through its conversion to primary bile acids (BAs), was associated with dementia pathogenesis. We used a 3-step study design to examine the role of the primary BAs, cholic acid (CA), and chenodeoxycholic acid (CDCA) as well as their principal biosynthetic precursor, 7α-hydroxycholesterol (7α-OHC), in dementia. https://www.selleckchem.com/products/opicapone.html In Step 1, we tested whether serum markers of cholesterol catabolism were associated with brain amyloid accumulation, white matter lesions (WMLs), and brain atrophy. In Step 2, we tested whether exposure to bile acid sequestrants (BAS) was associated with risk of dementia. In Step 3, we examined plausible mechanisms underlying these findings by testing whether brain levels of primary BAs and gene expression of their principal receptors are altered in AD. Step 1 We assayed serum concentrac analysis to implicate dysregulation of cholesterol catabolism in dementia pathogenesis. We observed that lower serum BA concentration mainly in males is associated with neuroimaging markers of dementia, and pharmacological lowering of BA levels may be associated with higher risk of VaD in males. We hypothesize that dysregulation of BA signaling pathways in the brain may represent a plausible biologic mechanism underlying these results. Together, our observations suggest a novel mechanism relating abnormalities in cholesterol catabolism to risk of dementia. Anthrax is a major but neglected zoonotic disease of public health concern in India with Odisha contributing a major share to the disease burden. Bacillus anthracis spores can be found naturally in soil and commonly affect both animals and humans around the world. Domestic and wild animals such as cattle, sheep, goats, and deer can become infected when they inhale or ingest spores from contaminated soil, plants, or water. Anthrax can be fatal if patients are not treated promptly with antibiotics. This protocol aims to describe the implementation and evaluation of the 'One Health' intervention model based on the principles of Theory of Change (ToC) to eliminate human anthrax from a tribal district in Odisha, India. This study would test the effectiveness of a complex public health intervention package developed using the ToC framework for the elimination of human anthrax in Koraput district by a comparative analysis of baseline and end-line data. We plan to enroll 2640 adults across 14 geographically divid anthrax in India. The findings from this study will offer important insights for policy-making and further replication in other endemic regions of the state and country. The authors confirm that all ongoing and related trials for this intervention are prospectively registered with the Clinical Trials Registry of India [CTRI/2020/05/025325] on 22 May 2020. The authors confirm that all ongoing and related trials for this intervention are prospectively registered with the Clinical Trials Registry of India [CTRI/2020/05/025325] on 22 May 2020. Cardiovascular disease (CVD) is a leading cause of health loss and health sector economic burdens in high-income countries. Unemployment is associated with increased risk of CVD, and so there is concern that the economic downturn associated with the COVID-19 pandemic will increase the CVD burden. This modeling study aimed to quantify potential health loss, health cost burden and health inequities among people with CVD due to additional unemployment caused by COVID-19 pandemic-related economic disruption in one high-income country New Zealand (NZ). We adapted an established and validated multi-state life-table model for CVD in the national NZ population. We modeled indirect effects (ie, higher CVD incidence due to high unemployment rates) for various scenarios of pandemic-related unemployment projections from the NZ Treasury. We estimated the potential CVD-related heath loss in NZ to range from 23,300 to 36,900 health-adjusted life years (HALYs) for the different unemployment scenarios. Health inequitiary prevention of CVD. Leishmaniasis is a neglected tropical disease caused by parasites of the genus Leishmania and is transmitted by various species of female phlebotomine sand flies. The first report of cutaneous leishmaniasis (CL) in Ghana refer to a cluster of cases in 1999-2003 in the Ho municipality of the Volta Region. We conducted an epidemiological assessment in the Oti Region, encouraged by recent reports of potential cases of CL. Using a cross-sectional study design, the exposure to Leishmania was investigated in three communities of the Oti Region based on the leishmanin skin test (LST). LST results for 3,071 participants comprising 1091, 848, and 1132 persons from the communities of Ashiabre, Keri, and Sibi Hilltop, indicated an overall prevalence of exposure to Leishmania infection of 41.8% and individual community prevalence of 39.4%, 55.1%, and 34.2% respectively. Being male [AOR = 1.27; CI 1.09, 1.49], and living in Keri [AOR = 1.83; CI 1.43, 2.34] were associated with an increase in the odds of exposure to Leishmania. Being 5-10 years old [AOR = 1.48; CI 1.06, 2.05], 11-17 years old [AOR = 2.03; CI 1.45, 2.85], 18-40 years old [AORR = 2.83; CI 1.81, 4.43] and 41-65 years old [AOR = 5.08; CI 2.98, 8.68] were also significantly associated with increased odds of being exposed to Leishmania. This study demonstrated exposure to Leishmania in the study communities and also identified associated factors. Future efforts aimed at reducing exposure to Leishmania infection in the study area should take the associated factors into consideration. This study demonstrated exposure to Leishmania in the study communities and also identified associated factors. Future efforts aimed at reducing exposure to Leishmania infection in the study area should take the associated factors into consideration.Antibodies are widely used reagents to test for expression of proteins and other antigens. However, they might not always reliably produce results when they do not specifically bind to the target proteins that their providers designed them for, leading to unreliable research results. While many proposals have been developed to deal with the problem of antibody specificity, it is still challenging to cover the millions of antibodies that are available to researchers. In this study, we investigate the feasibility of automatically generating alerts to users of problematic antibodies by extracting statements about antibody specificity reported in the literature. The extracted alerts can be used to construct an "Antibody Watch" knowledge base containing supporting statements of problematic antibodies. We developed a deep neural network system and tested its performance with a corpus of more than two thousand articles that reported uses of antibodies. We divided the problem into two tasks. Given an input article, the first task is to identify snippets about antibody specificity and classify if the snippets report that any antibody exhibits non-specificity, and thus is problematic.0 Comments 0 Shares 31 Views 0 Reviews
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