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Two recent reports by Cramer and Ben-Shem and colleagues present high-resolution structures of the yeast SAGA transcription coactivator complex. These are the first to resolve the stoichiometry and structure of the core. The core contains an octamer-like fold, flexibly links the enzymatic modules, and facilitates TBP loading onto TATA promoters.Narcolepsy is a sleep disorder that has been associated with the loss of orexinergic neurons from the lateral hypothalamic area. https://www.selleckchem.com/products/resigratinib.html This loss leads to dysregulated sleep and cataplexy attacks. Therapeutic options are currently limited to symptom management with pharmacotherapy and nonpharmacological approaches. Nonetheless, cell replacement therapy could offer relief, and research in the field has yielded positive results for other neurodegenerative disorders, such as Parkinson's disease. Thus, we propose that orexin cell rich grafts could help improve narcoleptic symptoms in the orexin/ataxin-3 mouse model of narcolepsy. For this purpose, we isolated EGFP+ cells from either orexin/EGFP or CAG-EGFP **** with the use of a flow cytometer and grafted them into the pedunculopontine and laterodorsal tegmentum nuclei (PPT/LDDT) of orexin/ataxin-3 ****. Our results show that even small orexinergic grafts can reduce the severity of behavioral arrests, with a median reduction of 30.31% in episode duration, 51.35% for number of events and 69.73% in time spent in the behavioral arrest state and help with sleep fragmentation measured in number of bouts per behavioral state. Surprisingly, control grafts made from cerebellar tissue also reduced behavioral arrest severity, but to a lesser degree. Although still at a very early stage, these results show that there is potential in cell grafts for improving aspects of the narcoleptic phenotype and further research could help elucidate realistic expectations of an orexin cell replacement therapy for narcolepsy.Currently, there is no efficacious pharmacological treatment for traumatic brain injury (TBI). Previous studies revealed that L-lactate preconditioning has shown rich neuroprotective effects against cerebral ischemia, and therefore has the potential to improve neurological outcomes after TBI. L-lactate played a neuroprotective role by activating GPR81 in diseases of the central nervous system (CNS) such as TBI and cerebral ischemia. In this study we investigated the effects of L-lactate preconditioning on TBI and explored the underlying mechanisms. In this study, the mNSS test revealed that L-lactate preconditioning alleviates the neurological deficit caused by TBI in rats. L-lactate preconditioning significantly increased the expression of GPR81, PSD95, GAP43, BDNF, and MCT2 24 h after TBI in the cortex and hippocampus compared with the sham group. Taken together, these data suggested that L-lactate preconditioning is an effective method with which to recover neurological function after TBI. This reveals the mechanism of L-lactate preconditioning on TBI and provides a potential therapeutic method for TBI in humans.Objective To determine if the "sacral sparing" definition for completeness of traumatic spinal cord injury (SCI) is a more stable definition than the previously used Frankel Classification. Design Retrospective analysis of persons enrolled in the Spinal Cord Injury Model Systems (SCIMS) database from 2011-2018. Setting SCIMS centers. Participants Individuals (N=804) with traumatic SCI, age >16 years at time of injury, admission to rehabilitation within 30 days, ASIA Impairment Scale (AIS) grades A- D at admission, and complete neurological data at admission and 1-year. Intervention None applicable. Main outcome measures Frankel and AIS scores were computed for a cohort of 804 eligible cases. Stability was compared between the two classification systems by calculating the proportions of cases where regression (conversion to a more severe impairment level) was observed. Results A larger proportion of persons classified with "incomplete" injuries (grades B-D) at admission using the Frankel system regressed to complete status at 1-year compared to the AIS criteria (9.4% vs 2.0%). Those with B grade injuries regressed to A more often using Frankel as compared to the AIS system (19.7% to 5.4%). A larger proportion of people diagnosed as Frankel C or D regressed to Frankel A, as compared to AIS C or D who regressed to AIS A (5.0% to 1.1%). Conclusion Greater number of persons diagnosed with neurologically incomplete SCI regressed to complete status at 1-year when using the Frankel compared to the AIS classification which is based upon sacral sparing. This reinforces the finding that the "sacral sparing" definition is a more stable classification in traumatic SCI.Cytochrome c Oxidase (CcO) is the terminal electron acceptor in aerobic respiratory chain, reducing O2 to water. The released free energy is stored by pumping protons through the protein, maintaining the transmembrane electrochemical gradient. Protons are held transiently in a proton loading site (PLS) that binds and releases protons driven by the electron transfer reaction cycle. Multi-Conformation Continuum Electrostatics (****) was applied to crystal structures and Molecular Dynamics snapshots of the B-type Thermus thermophilus CcO. Six residues are identified as the PLS, binding and releasing protons as the charges on heme b and the binuclear center are changed the heme a3 propionic acids, Asp287, Asp372, His376 and Glu126B. The unloaded state has one proton and the loaded state two protons on these six residues. Different input structures, modifying the PLS conformation, show different proton distributions and result in different proton pumping behaviors. One loaded and one unloaded protonation states have the loaded/unloaded states close in energy so the PLS binds and releases a proton through the reaction cycle. The alternative proton distributions have state energies too far apart to be shifted by the electron transfers so are locked in loaded or unloaded states. Here the protein can use active states to load and unload protons, but has nearby trapped states, which stabilize PLS protonation state, providing new ideas about the CcO proton pumping mechanism. The distance between the PLS residues Asp287 and His376 correlates with the energy difference between loaded and unloaded states.
Two recent reports by Cramer and Ben-Shem and colleagues present high-resolution structures of the yeast SAGA transcription coactivator complex. These are the first to resolve the stoichiometry and structure of the core. The core contains an octamer-like fold, flexibly links the enzymatic modules, and facilitates TBP loading onto TATA promoters.Narcolepsy is a sleep disorder that has been associated with the loss of orexinergic neurons from the lateral hypothalamic area. https://www.selleckchem.com/products/resigratinib.html This loss leads to dysregulated sleep and cataplexy attacks. Therapeutic options are currently limited to symptom management with pharmacotherapy and nonpharmacological approaches. Nonetheless, cell replacement therapy could offer relief, and research in the field has yielded positive results for other neurodegenerative disorders, such as Parkinson's disease. Thus, we propose that orexin cell rich grafts could help improve narcoleptic symptoms in the orexin/ataxin-3 mouse model of narcolepsy. For this purpose, we isolated EGFP+ cells from either orexin/EGFP or CAG-EGFP mice with the use of a flow cytometer and grafted them into the pedunculopontine and laterodorsal tegmentum nuclei (PPT/LDDT) of orexin/ataxin-3 mice. Our results show that even small orexinergic grafts can reduce the severity of behavioral arrests, with a median reduction of 30.31% in episode duration, 51.35% for number of events and 69.73% in time spent in the behavioral arrest state and help with sleep fragmentation measured in number of bouts per behavioral state. Surprisingly, control grafts made from cerebellar tissue also reduced behavioral arrest severity, but to a lesser degree. Although still at a very early stage, these results show that there is potential in cell grafts for improving aspects of the narcoleptic phenotype and further research could help elucidate realistic expectations of an orexin cell replacement therapy for narcolepsy.Currently, there is no efficacious pharmacological treatment for traumatic brain injury (TBI). Previous studies revealed that L-lactate preconditioning has shown rich neuroprotective effects against cerebral ischemia, and therefore has the potential to improve neurological outcomes after TBI. L-lactate played a neuroprotective role by activating GPR81 in diseases of the central nervous system (CNS) such as TBI and cerebral ischemia. In this study we investigated the effects of L-lactate preconditioning on TBI and explored the underlying mechanisms. In this study, the mNSS test revealed that L-lactate preconditioning alleviates the neurological deficit caused by TBI in rats. L-lactate preconditioning significantly increased the expression of GPR81, PSD95, GAP43, BDNF, and MCT2 24 h after TBI in the cortex and hippocampus compared with the sham group. Taken together, these data suggested that L-lactate preconditioning is an effective method with which to recover neurological function after TBI. This reveals the mechanism of L-lactate preconditioning on TBI and provides a potential therapeutic method for TBI in humans.Objective To determine if the "sacral sparing" definition for completeness of traumatic spinal cord injury (SCI) is a more stable definition than the previously used Frankel Classification. Design Retrospective analysis of persons enrolled in the Spinal Cord Injury Model Systems (SCIMS) database from 2011-2018. Setting SCIMS centers. Participants Individuals (N=804) with traumatic SCI, age >16 years at time of injury, admission to rehabilitation within 30 days, ASIA Impairment Scale (AIS) grades A- D at admission, and complete neurological data at admission and 1-year. Intervention None applicable. Main outcome measures Frankel and AIS scores were computed for a cohort of 804 eligible cases. Stability was compared between the two classification systems by calculating the proportions of cases where regression (conversion to a more severe impairment level) was observed. Results A larger proportion of persons classified with "incomplete" injuries (grades B-D) at admission using the Frankel system regressed to complete status at 1-year compared to the AIS criteria (9.4% vs 2.0%). Those with B grade injuries regressed to A more often using Frankel as compared to the AIS system (19.7% to 5.4%). A larger proportion of people diagnosed as Frankel C or D regressed to Frankel A, as compared to AIS C or D who regressed to AIS A (5.0% to 1.1%). Conclusion Greater number of persons diagnosed with neurologically incomplete SCI regressed to complete status at 1-year when using the Frankel compared to the AIS classification which is based upon sacral sparing. This reinforces the finding that the "sacral sparing" definition is a more stable classification in traumatic SCI.Cytochrome c Oxidase (CcO) is the terminal electron acceptor in aerobic respiratory chain, reducing O2 to water. The released free energy is stored by pumping protons through the protein, maintaining the transmembrane electrochemical gradient. Protons are held transiently in a proton loading site (PLS) that binds and releases protons driven by the electron transfer reaction cycle. Multi-Conformation Continuum Electrostatics (MCCE) was applied to crystal structures and Molecular Dynamics snapshots of the B-type Thermus thermophilus CcO. Six residues are identified as the PLS, binding and releasing protons as the charges on heme b and the binuclear center are changed the heme a3 propionic acids, Asp287, Asp372, His376 and Glu126B. The unloaded state has one proton and the loaded state two protons on these six residues. Different input structures, modifying the PLS conformation, show different proton distributions and result in different proton pumping behaviors. One loaded and one unloaded protonation states have the loaded/unloaded states close in energy so the PLS binds and releases a proton through the reaction cycle. The alternative proton distributions have state energies too far apart to be shifted by the electron transfers so are locked in loaded or unloaded states. Here the protein can use active states to load and unload protons, but has nearby trapped states, which stabilize PLS protonation state, providing new ideas about the CcO proton pumping mechanism. The distance between the PLS residues Asp287 and His376 correlates with the energy difference between loaded and unloaded states.0 Commenti 0 condivisioni 1 Views 0 AnteprimaEffettua l'accesso per mettere mi piace, condividere e commentare! -
Sixty-four individuals of a macronyssid mite, Parasteatonyssus nyctinomi (Zumpt, Patterson 1951), were identified from Egyptian free-tailed bats Tadarida aegyptiaca (É. https://www.selleckchem.com/products/baxdrostat.html Geoffroy 1818) (Chiroptera Molossidae) captured in the Kunene region of Namibia (southern Africa). This is the first report on P. nyctinomi in the country.Synthetic colloids are commonly administered to dogs to treat absolute or relative hypovolaemia. Voluven® (tetrastarch 130/0.4) and Gelofusine® (succinylated gelatin) are available to veterinarians in South Africa. In humans, use of these products has caused acid-base derangements, changes in haematology and impaired haemostasis. We aimed to investigate these effects in healthy normovolaemic dogs. Eight healthy adult beagle dogs underwent a cross-over study, receiving Voluven® or Gelofusine® (10 mL/kg/h for 120 min) once each with a 14-day washout between treatments. Dogs were premedicated with dexmedetomidine (10 µg/kg intramuscularly). Anaesthesia was induced with propofol and the dogs were maintained with isoflurane-in-oxygen. The anaesthetised dogs were connected to a multi-parameter monitor to monitor physiological parameters throughout. Catheters placed in a jugular vein and dorsal metatarsal artery allowed sampling of venous and arterial blood. Blood was collected immediately prior to commencement of colloid infusion, after 60 min infusion and at the end of infusion (120 min) to allow for arterial blood gas analysis, haematology and coagulation testing (activated partial thromboplastin time [aPTT], prothrombin time [PT] and thromboelastography [TEG]). There was no effect, between treatments or over time, on blood pH. The haemoglobin concentration, erythrocyte count and haematocrit decreased significantly over time (all p 0.01), with no differences between treatments, and remained within normal clinical ranges. There were no differences between treatments or over time for the TEG, aPTT and PT tests of haemostasis. At the dose studied, Voluven® and Gelofusine® had comparably negligible effects on blood acid-base balance and coagulation in normovolaemic dogs.Because of their size (1-10 μm), microbubble-based drug delivery agents suffer from confinement to the vasculature, limiting tumor penetration and potentially reducing the drug efficacy. Nanobubbles (NBs) have emerged as promising candidates for ultrasound-triggered drug delivery because of their small size, allowing drug delivery complexes to take advantage of the enhanced permeability and retention effect. In this study, we describe a simple method for production of nested-nanobubbles (Nested-NBs) by encapsulation of NBs (∼100 nm) within drug-loaded liposomes. This method combines the efficient and well-established drug-loading capabilities of liposomes while utilizing NBs as an acoustic trigger for drug release. Encapsulation was characterized using transmission electron microscopy with an encapsulation efficiency of 22 ± 2%. Nested-NBs demonstrated echogenicity using diagnostic B-mode imaging, and acoustic emissions were monitored during high-intensity focused ultrasound (HIFU) in addition to monitoring of model drug release. Results showed that although the encapsulated NBs were destroyed by pulsed HIFU [peak negative pressure (PNP) 1.54-4.83 MPa], signified by loss of echogenicity and detection of inertial cavitation, no model drug release was observed. Changing modality to continuous wave (CW) HIFU produced release across a range of PNPs (2.01-3.90 MPa), likely because of a synergistic effect of mechanical and increased thermal stimuli. Because of this, we predict that our NBs contain a mixed population of both gaseous and liquid core particles, which upon CW HIFU undergo rapid phase conversion, triggering liposomal drug release. This hypothesis was investigated using previously described models to predict the existence of droplets and their phase change potential and the ability of this phase change to induce liposomal drug release.Single-phonon modes offer potential applications in quantum phonon optics, but the phonon density of states of most materials consist of mixed contributions from coupled phonons. Here, using theoretical calculations and magneto-Raman measurements, we report two single-phonon vibration modes originating from the breathing and opposite out-of-plane vibrations of InSe layers. These single-phonon vibrations exhibit an anticorrelated scattering rotations of the polarization axis under an applied vertical magnetic field; such an anomalous magneto-optical behavior is due to the reverse bond polarizations of two quantum atomic vibrations, which induce different symmetry for the corresponding Raman selection rules. A 180° (+90° and -90°) integrated scattering rotation angle of two single-phonon modes was achieved when the magnetic field was swept from 0 to 6 T. This work demonstrates new ways to manipulate the magneto-optic effect through phonon polarity-based symmetry control and opens avenues for exploring single-phonon-vibration-based nanomechanical oscillators and magneto-phonon-coupled physics.The properties and stereochemical reactivity of cyclobutadiene, benzene, cyclooctatetraene, and the [10]- to [14]annulenes can be uniformly rationalized through the **** bond/antiperiplanar hypothesis (BBAH). This new orbital model considers electronic delocalization between pyramidal diradical resonance structures and associated **** bonds, as it applies to aromatic, nonaromatic, and antiaromatic molecules.The hydration behavior of alkyl-diammonium di-cations and alkyl-dicarboxylate di-anions, of varying alkyl chain length, was examined using basin-hopping (BH) global optimization techniques. For every di-ion investigated, a conformational transition from linear to folded is observed at a critical hydration number, n*, specific to each di-ion. A stepwise hydration study has been undertaken for alkyl-dicarboxylate di-anions in finite water clusters containing 1-12 water molecules, and low-energy structures have been examined for larger water clusters. An even number of carbons in the alkyl chain gives rise to more stable conformations in unhydrated, implicitly solvated, and explicitly solvated conditions. This work provides valuable information on how the hydration of ammonium and carboxylate ions influence larger biomolecules' conformations.
Sixty-four individuals of a macronyssid mite, Parasteatonyssus nyctinomi (Zumpt, Patterson 1951), were identified from Egyptian free-tailed bats Tadarida aegyptiaca (É. https://www.selleckchem.com/products/baxdrostat.html Geoffroy 1818) (Chiroptera Molossidae) captured in the Kunene region of Namibia (southern Africa). This is the first report on P. nyctinomi in the country.Synthetic colloids are commonly administered to dogs to treat absolute or relative hypovolaemia. Voluven® (tetrastarch 130/0.4) and Gelofusine® (succinylated gelatin) are available to veterinarians in South Africa. In humans, use of these products has caused acid-base derangements, changes in haematology and impaired haemostasis. We aimed to investigate these effects in healthy normovolaemic dogs. Eight healthy adult beagle dogs underwent a cross-over study, receiving Voluven® or Gelofusine® (10 mL/kg/h for 120 min) once each with a 14-day washout between treatments. Dogs were premedicated with dexmedetomidine (10 µg/kg intramuscularly). Anaesthesia was induced with propofol and the dogs were maintained with isoflurane-in-oxygen. The anaesthetised dogs were connected to a multi-parameter monitor to monitor physiological parameters throughout. Catheters placed in a jugular vein and dorsal metatarsal artery allowed sampling of venous and arterial blood. Blood was collected immediately prior to commencement of colloid infusion, after 60 min infusion and at the end of infusion (120 min) to allow for arterial blood gas analysis, haematology and coagulation testing (activated partial thromboplastin time [aPTT], prothrombin time [PT] and thromboelastography [TEG]). There was no effect, between treatments or over time, on blood pH. The haemoglobin concentration, erythrocyte count and haematocrit decreased significantly over time (all p 0.01), with no differences between treatments, and remained within normal clinical ranges. There were no differences between treatments or over time for the TEG, aPTT and PT tests of haemostasis. At the dose studied, Voluven® and Gelofusine® had comparably negligible effects on blood acid-base balance and coagulation in normovolaemic dogs.Because of their size (1-10 μm), microbubble-based drug delivery agents suffer from confinement to the vasculature, limiting tumor penetration and potentially reducing the drug efficacy. Nanobubbles (NBs) have emerged as promising candidates for ultrasound-triggered drug delivery because of their small size, allowing drug delivery complexes to take advantage of the enhanced permeability and retention effect. In this study, we describe a simple method for production of nested-nanobubbles (Nested-NBs) by encapsulation of NBs (∼100 nm) within drug-loaded liposomes. This method combines the efficient and well-established drug-loading capabilities of liposomes while utilizing NBs as an acoustic trigger for drug release. Encapsulation was characterized using transmission electron microscopy with an encapsulation efficiency of 22 ± 2%. Nested-NBs demonstrated echogenicity using diagnostic B-mode imaging, and acoustic emissions were monitored during high-intensity focused ultrasound (HIFU) in addition to monitoring of model drug release. Results showed that although the encapsulated NBs were destroyed by pulsed HIFU [peak negative pressure (PNP) 1.54-4.83 MPa], signified by loss of echogenicity and detection of inertial cavitation, no model drug release was observed. Changing modality to continuous wave (CW) HIFU produced release across a range of PNPs (2.01-3.90 MPa), likely because of a synergistic effect of mechanical and increased thermal stimuli. Because of this, we predict that our NBs contain a mixed population of both gaseous and liquid core particles, which upon CW HIFU undergo rapid phase conversion, triggering liposomal drug release. This hypothesis was investigated using previously described models to predict the existence of droplets and their phase change potential and the ability of this phase change to induce liposomal drug release.Single-phonon modes offer potential applications in quantum phonon optics, but the phonon density of states of most materials consist of mixed contributions from coupled phonons. Here, using theoretical calculations and magneto-Raman measurements, we report two single-phonon vibration modes originating from the breathing and opposite out-of-plane vibrations of InSe layers. These single-phonon vibrations exhibit an anticorrelated scattering rotations of the polarization axis under an applied vertical magnetic field; such an anomalous magneto-optical behavior is due to the reverse bond polarizations of two quantum atomic vibrations, which induce different symmetry for the corresponding Raman selection rules. A 180° (+90° and -90°) integrated scattering rotation angle of two single-phonon modes was achieved when the magnetic field was swept from 0 to 6 T. This work demonstrates new ways to manipulate the magneto-optic effect through phonon polarity-based symmetry control and opens avenues for exploring single-phonon-vibration-based nanomechanical oscillators and magneto-phonon-coupled physics.The properties and stereochemical reactivity of cyclobutadiene, benzene, cyclooctatetraene, and the [10]- to [14]annulenes can be uniformly rationalized through the bent bond/antiperiplanar hypothesis (BBAH). This new orbital model considers electronic delocalization between pyramidal diradical resonance structures and associated bent bonds, as it applies to aromatic, nonaromatic, and antiaromatic molecules.The hydration behavior of alkyl-diammonium di-cations and alkyl-dicarboxylate di-anions, of varying alkyl chain length, was examined using basin-hopping (BH) global optimization techniques. For every di-ion investigated, a conformational transition from linear to folded is observed at a critical hydration number, n*, specific to each di-ion. A stepwise hydration study has been undertaken for alkyl-dicarboxylate di-anions in finite water clusters containing 1-12 water molecules, and low-energy structures have been examined for larger water clusters. An even number of carbons in the alkyl chain gives rise to more stable conformations in unhydrated, implicitly solvated, and explicitly solvated conditions. This work provides valuable information on how the hydration of ammonium and carboxylate ions influence larger biomolecules' conformations.0 Commenti 0 condivisioni 1 Views 0 Anteprima -
Genome-wide association studies have identified more than 150 susceptibility loci for coronary artery disease (***); however, there is still a large proportion of missing heritability remaining to be investigated. This study sought to identify population-based genetic variation associated with acute coronary syndromes (ACS) in individuals of Chinese Han descent. We proposed a novel strategy integrating a well-developed risk prediction model into control selection in order to lower the potential misclassification bias and increase the statistical power. An exome-wide association analysis was performed for 1,669 ACS patients and 1,935 healthy controls. Promising variants were further replicated using the existing in silico dataset. Additionally, we performed gene- and pathway-based analyses to investigate the aggregate effect of multiple variants within the same genes or pathways. Although none of the association signals were consistent across studies after Bonferroni correction, one promising variant, rs10409124 at STRN4, showed potential impact on ACS in both European and East Asian populations. Gene-based analysis explored four genes (ANXA7, ZNF655, ZNF347, and ZNF750) that showed evidence for association with ACS after multiple test correction, and identification of ZNF655 was successfully replicated by another dataset. Pathway-based analysis revealed that 32 potential pathways might be involved in the pathogenesis of ACS. https://www.selleckchem.com/products/CX-3543.html Our study identified several candidate genes and pathways associated with ACS. Future studies are needed to further validate these findings and explore these genes and pathways as potential therapeutic targets in ACS. Copyright © 2020 Zheng, Zhang, Jiang, Jia, Fan, Gong, Wang, Shi, Chen and Huo.Calpains represent a family of calcium-dependent proteases participating in a multitude of functions under physiological or pathological conditions. Calpain-1 is one of the most studied members of the family, is ubiquitously distributed in organs and tissues, and has been shown to be involved in synaptic plasticity and neuroprotection in mammalian brain. Calpain-1 deletion results in a number of phenotypic alterations. While some of these alterations can be explained by the acute functions of calpain-1, the present study was directed at studying alterations in gene expression that could also account for these phenotypic modifications. RNA-seq analysis identified 354 differentially expressed genes (DEGs) in brain of calpain-1 knock-out ****, as compared to their wild-type strain. Most DEGs were classified in 10 KEGG pathways, with the highest representations in Protein Processing in Endoplasmic Reticulum, MAP kinase and Alzheimer's disease pathways. Most DEGs were down-regulated and validation of a number of these genes indicated a corresponding decreased expression of their encoded proteins. The results indicate that calpain-1 is involved in the regulation of a significant number of genes affecting multiple brain functions. They also indicate that mutations in calpain-1 are likely to be involved in a number of brain disorders. Copyright © 2020 Su, Zhou, Wang, Chishti, Li, Dayal, Shiehzadegan, Cheng, Moore, Bi and Baudry.Atherosclerosis is the pathological basis of cardiovascular disease. Obstructive sleep apnea (OSA) aggravates atherosclerosis, and chronic intermittent hypoxia (CIH) as a prominent feature of OSA plays an important role during the process of atherosclerosis. The mechanisms of CIH in the development of atherosclerosis remain unclear. In the current study, we used microarray to investigate differentially expressed mRNAs and long non-coding RNAs (lncRNAs) in aorta from five groups of ApoE-/- **** fed with a high-fat diet and exposed to various conditions normoxia for 8 weeks, CIH for 8 weeks, normoxia for 12 weeks, CIH for 12 weeks, or CIH for 8 weeks followed by normoxia for 4 weeks. Selected transcripts were validated in aorta tissues and RT-qPCR analysis showed correlation with the microarray data. Gene Ontology analysis and pathway enrichment analysis were performed to explore the mRNA function. Bioinformatic analysis indicated that short-term CIH induced up-regulated mRNAs involved in inflammatory response. Pathway enrichment analysis of lncRNA co-localized mRNAs and lncRNA co-expressed mRNAs were performed to explore lncRNA functions. The up-regulated mRNAs, lncRNA co-localized mRNAs and lncRNA co-expressed mRNAs were significantly associated with protein processing in endoplasmic reticulum pathway in atherosclerotic vascular tissue with long-term CIH exposure, suggesting that differentially expressed mRNAs and lncRNAs play important roles in this pathway. Moreover, a mRNA-lncRNA co-expression network with 380 lncRNAs, 508 mRNAs and 3238 relationships was constructed based on the correlation analysis between the differentially expressed mRNAs and lncRNAs. In summary, our study provided a systematic perspective on the potential function of mRNAs and lncRNAs in CIH-aggravated atherosclerosis, and may provide novel molecular candidates for future investigation on atherosclerosis exposed to CIH. Copyright © 2020 Zhang, Hu, Jiao, Yang, Li, Yu, Qin and Wei.As crossbreeding is extensively used in some livestock species, we aimed to evaluate the performance of single-step GBLUP (ssGBLUP) and weighted ssGBLUP (WssGBLUP) methods to predict Genomic Estimated Breeding Values (GEBVs) of crossbred animals. Different training population scenarios were evaluated (SC1) ssGBLUP based on a single-trait model considering purebred and crossbred animals in a joint training population; (SC2) ssGBLUP based on a multiple-trait model to enable considering phenotypes recorded in purebred and crossbred training animals as different traits; (SC3) WssGBLUP based on a single-trait model considering purebred and crossbred animals jointly in the training population (both populations were used for SNP weights' estimation); (SC4) WssGBLUP based on a single-trait model considering only purebred animals in the training population (crossbred population only used for SNP weights' estimation); (SC5) WssGBLUP based on a single-trait model and the training population characterized by purebred animals (purebred population used for SNP weights' estimation).
Genome-wide association studies have identified more than 150 susceptibility loci for coronary artery disease (CAD); however, there is still a large proportion of missing heritability remaining to be investigated. This study sought to identify population-based genetic variation associated with acute coronary syndromes (ACS) in individuals of Chinese Han descent. We proposed a novel strategy integrating a well-developed risk prediction model into control selection in order to lower the potential misclassification bias and increase the statistical power. An exome-wide association analysis was performed for 1,669 ACS patients and 1,935 healthy controls. Promising variants were further replicated using the existing in silico dataset. Additionally, we performed gene- and pathway-based analyses to investigate the aggregate effect of multiple variants within the same genes or pathways. Although none of the association signals were consistent across studies after Bonferroni correction, one promising variant, rs10409124 at STRN4, showed potential impact on ACS in both European and East Asian populations. Gene-based analysis explored four genes (ANXA7, ZNF655, ZNF347, and ZNF750) that showed evidence for association with ACS after multiple test correction, and identification of ZNF655 was successfully replicated by another dataset. Pathway-based analysis revealed that 32 potential pathways might be involved in the pathogenesis of ACS. https://www.selleckchem.com/products/CX-3543.html Our study identified several candidate genes and pathways associated with ACS. Future studies are needed to further validate these findings and explore these genes and pathways as potential therapeutic targets in ACS. Copyright © 2020 Zheng, Zhang, Jiang, Jia, Fan, Gong, Wang, Shi, Chen and Huo.Calpains represent a family of calcium-dependent proteases participating in a multitude of functions under physiological or pathological conditions. Calpain-1 is one of the most studied members of the family, is ubiquitously distributed in organs and tissues, and has been shown to be involved in synaptic plasticity and neuroprotection in mammalian brain. Calpain-1 deletion results in a number of phenotypic alterations. While some of these alterations can be explained by the acute functions of calpain-1, the present study was directed at studying alterations in gene expression that could also account for these phenotypic modifications. RNA-seq analysis identified 354 differentially expressed genes (DEGs) in brain of calpain-1 knock-out mice, as compared to their wild-type strain. Most DEGs were classified in 10 KEGG pathways, with the highest representations in Protein Processing in Endoplasmic Reticulum, MAP kinase and Alzheimer's disease pathways. Most DEGs were down-regulated and validation of a number of these genes indicated a corresponding decreased expression of their encoded proteins. The results indicate that calpain-1 is involved in the regulation of a significant number of genes affecting multiple brain functions. They also indicate that mutations in calpain-1 are likely to be involved in a number of brain disorders. Copyright © 2020 Su, Zhou, Wang, Chishti, Li, Dayal, Shiehzadegan, Cheng, Moore, Bi and Baudry.Atherosclerosis is the pathological basis of cardiovascular disease. Obstructive sleep apnea (OSA) aggravates atherosclerosis, and chronic intermittent hypoxia (CIH) as a prominent feature of OSA plays an important role during the process of atherosclerosis. The mechanisms of CIH in the development of atherosclerosis remain unclear. In the current study, we used microarray to investigate differentially expressed mRNAs and long non-coding RNAs (lncRNAs) in aorta from five groups of ApoE-/- mice fed with a high-fat diet and exposed to various conditions normoxia for 8 weeks, CIH for 8 weeks, normoxia for 12 weeks, CIH for 12 weeks, or CIH for 8 weeks followed by normoxia for 4 weeks. Selected transcripts were validated in aorta tissues and RT-qPCR analysis showed correlation with the microarray data. Gene Ontology analysis and pathway enrichment analysis were performed to explore the mRNA function. Bioinformatic analysis indicated that short-term CIH induced up-regulated mRNAs involved in inflammatory response. Pathway enrichment analysis of lncRNA co-localized mRNAs and lncRNA co-expressed mRNAs were performed to explore lncRNA functions. The up-regulated mRNAs, lncRNA co-localized mRNAs and lncRNA co-expressed mRNAs were significantly associated with protein processing in endoplasmic reticulum pathway in atherosclerotic vascular tissue with long-term CIH exposure, suggesting that differentially expressed mRNAs and lncRNAs play important roles in this pathway. Moreover, a mRNA-lncRNA co-expression network with 380 lncRNAs, 508 mRNAs and 3238 relationships was constructed based on the correlation analysis between the differentially expressed mRNAs and lncRNAs. In summary, our study provided a systematic perspective on the potential function of mRNAs and lncRNAs in CIH-aggravated atherosclerosis, and may provide novel molecular candidates for future investigation on atherosclerosis exposed to CIH. Copyright © 2020 Zhang, Hu, Jiao, Yang, Li, Yu, Qin and Wei.As crossbreeding is extensively used in some livestock species, we aimed to evaluate the performance of single-step GBLUP (ssGBLUP) and weighted ssGBLUP (WssGBLUP) methods to predict Genomic Estimated Breeding Values (GEBVs) of crossbred animals. Different training population scenarios were evaluated (SC1) ssGBLUP based on a single-trait model considering purebred and crossbred animals in a joint training population; (SC2) ssGBLUP based on a multiple-trait model to enable considering phenotypes recorded in purebred and crossbred training animals as different traits; (SC3) WssGBLUP based on a single-trait model considering purebred and crossbred animals jointly in the training population (both populations were used for SNP weights' estimation); (SC4) WssGBLUP based on a single-trait model considering only purebred animals in the training population (crossbred population only used for SNP weights' estimation); (SC5) WssGBLUP based on a single-trait model and the training population characterized by purebred animals (purebred population used for SNP weights' estimation).0 Commenti 0 condivisioni 1 Views 0 Anteprima -
Despite in vivo studies suggesting that obesity increases carboplatin (CBDCA) bone marrow toxicity, the American Society of Clinical Oncology recommends that full weight-based cytotoxic chemotherapy doses be used to treat obese patients with cancer. Accordingly, the present study retrospectively investigated the effect of body mass index (BMI) on bone marrow toxicity in patients with gynecological cancer who underwent paclitaxel and carboplatin (TC) therapy after eliminating the effect of the target area under the curve (AUC). Risk factors for CBDCA bone marrow toxicity were also identified. A total of 110 patients with primary gynecological cancer or gynecological cancer of unknown primary origin who underwent TC therapy with a target AUC of 5-6 were included herein. Patients with a BMI of ≥25 and less then 25 kg/m2 were assigned to the obesity and control groups, respectively, and evaluated according to changes in hematological test values (platelet, white blood cell, and hemoglobin counts) starting from initial TC therapy administration until 21 days after the second treatment course. The obesity group had a significantly higher thrombocytopenia rate than the control group. Risk factors for thrombocytopenia ≥ grade 2 included BMI ≥ 25 kg/m2. Among patients with primary gynecological cancer or gynecological cancer of unknown primary origin who had a BMI of ≥25 kg/m2, those receiving CBDCA may be at increased risk for thrombocytopenia ≥ grade 2 when the dosage is calculated using the Calvert formula with the creatinine clearance level.Toluene-sensing properties of mixed-potential type yttria-stabilized zirconia (YSZ)-based sensors attached with a thin CeO2-added Au sensing electrode (SE, CeO2 content 4 - 16 mass%, thickness 30 - 100 nm), which was fabricated by using a spin-coating method, were examined and the effects of their SE thickness and the additive amount of CeO2 on their toluene response were discussed in this study. The toluene response of the sensors attached with a 16 mass% CeO2-added Au SE increased with an increase in the SE thickness, and the sensor attached with the thickest 16 mass% CeO2-added Au SE showed the largest response, among all the sensors tested. This behavior probably arises from the increase in the number of active sites for electrochemical toluene oxidation in the CeO2-added Au SE.We examined clinical and geospatial factors associated with frequent emergency department (ED) use and identified neighborhood ED "hotspots" over a two-year period (2014-16). Emergency department patients were classified into three categories (1) infrequent users ( less then 3 ED visits); (2) semi-frequent users (3 or more visits in a year); and (3) persistent users (3 or more visits in both years). Persistent users were more likely to be female, aged 45-64, and have insurance compared with infrequent and semi-frequent users. Thirty percent of persistent users had both a mental and chronic health condition. Persistent and semi-frequent users were no more likely than infrequent users to use the ED for non-emergent conditions, but were more likely to use the ED for primary care treatable and preventable conditions. Emergency department hotspots were located closer to federally qualified health centers, closer to the main ED, had higher rates of mental health and other chronic conditions.Black populations in the United States are disproportionately affected by HIV. This disparity may be affected by social and structural barriers to HIV testing, leading to undiagnosed infection and prolonged HIV transmissibility. Using data from a nationally representative sample of 1,727 Black men in the 2015 Behavioral Risk Factor Surveillance System we tested for differences in poverty, depression, and health care barriers between Black men who had been HIV tested in the past year and those who had not. We also tested a syndemic index of these factors. Number of syndemic factors was linearly associated with less HIV testing (aPR=0.79, 95% CI 0.66-0.95). Assumptions of unidimensionality were met. The use of a syndemic index was a superior approach to analyzing these factors individually, both in terms of model fit and associations detected. The accumulation of poverty, depression, and health care barriers has an adverse impact on HIV testing among Black men.We assessed the ability of high-risk criteria developed by Boston Health Care for the Homeless Program to identify increased mortality during a 10-year cohort study (January 2000-December 2009) of 445 unsheltered adults. To qualify as high-risk for mortality, an individual slept unsheltered for six consecutive months or longer plus had one or more of the following characteristics tri-morbidity, defined as co-occurring medical, psychiatric, and addiction diagnoses; one or more inpatient or respite admissions; three or more emergency department visits; 60 years old or older; HIV/AIDS; cirrhosis; renal failure; frostbite, hypothermia, or immersion foot. A total of 119 (26.7%) individuals met the high-risk criteria. The remaining 326 individuals in the cohort were considered lowerrisk. During the study, 134 deaths occurred; 52 (38.8%) were among high-risk individuals. Compared with sheltered individuals, the age-standardized mortality ratio for the high-risk group was 4.0 (95% confidence interval 3.0, 5.2) times higher and for the lower-risk group was 2.2 (1.8, 2.8) times higher. The hazard ratio, a measure of survival, for the high-risk group was 1.7 (1.2, 2.4) times that of the lower-risk group. High-risk criteria predicted an increased likelihood of mortality among unsheltered individuals. The lower-risk group also had high mortality rates compared with sheltered individuals.OBJECTIVE Study occurrence and consequences of deductibles and medical debt among privately insured under the Affordable Care Act. METHODS Analysis of 2012-2016 National Health Interview Survey data on privately insured adults younger than age 65 on the effect of deductibles on medical debt, deferred medical care, and office visits, by demographic characteristics, and treatable chronic diseases. RESULTS Rates of medical debt and deferred care decreased. https://www.selleckchem.com/products/resigratinib.html Medical debt is greater for those with any type of high deductible (HD) insurance, and among those more vulnerable (lower income, minority, treatable chronic diseases). Medical debt with HD's increased deferred needed medical care 6 fold and is highest for those with more treatable chronic diseases. CONCLUSION While medical debt and deferred care decreased for all privately insured, those HD-insured and vulnerable report higher medical debt rates markedly increasing deferred needed medical care. Highdeductible insurance risks adverse health and social consequences for those vulnerable.
Despite in vivo studies suggesting that obesity increases carboplatin (CBDCA) bone marrow toxicity, the American Society of Clinical Oncology recommends that full weight-based cytotoxic chemotherapy doses be used to treat obese patients with cancer. Accordingly, the present study retrospectively investigated the effect of body mass index (BMI) on bone marrow toxicity in patients with gynecological cancer who underwent paclitaxel and carboplatin (TC) therapy after eliminating the effect of the target area under the curve (AUC). Risk factors for CBDCA bone marrow toxicity were also identified. A total of 110 patients with primary gynecological cancer or gynecological cancer of unknown primary origin who underwent TC therapy with a target AUC of 5-6 were included herein. Patients with a BMI of ≥25 and less then 25 kg/m2 were assigned to the obesity and control groups, respectively, and evaluated according to changes in hematological test values (platelet, white blood cell, and hemoglobin counts) starting from initial TC therapy administration until 21 days after the second treatment course. The obesity group had a significantly higher thrombocytopenia rate than the control group. Risk factors for thrombocytopenia ≥ grade 2 included BMI ≥ 25 kg/m2. Among patients with primary gynecological cancer or gynecological cancer of unknown primary origin who had a BMI of ≥25 kg/m2, those receiving CBDCA may be at increased risk for thrombocytopenia ≥ grade 2 when the dosage is calculated using the Calvert formula with the creatinine clearance level.Toluene-sensing properties of mixed-potential type yttria-stabilized zirconia (YSZ)-based sensors attached with a thin CeO2-added Au sensing electrode (SE, CeO2 content 4 - 16 mass%, thickness 30 - 100 nm), which was fabricated by using a spin-coating method, were examined and the effects of their SE thickness and the additive amount of CeO2 on their toluene response were discussed in this study. The toluene response of the sensors attached with a 16 mass% CeO2-added Au SE increased with an increase in the SE thickness, and the sensor attached with the thickest 16 mass% CeO2-added Au SE showed the largest response, among all the sensors tested. This behavior probably arises from the increase in the number of active sites for electrochemical toluene oxidation in the CeO2-added Au SE.We examined clinical and geospatial factors associated with frequent emergency department (ED) use and identified neighborhood ED "hotspots" over a two-year period (2014-16). Emergency department patients were classified into three categories (1) infrequent users ( less then 3 ED visits); (2) semi-frequent users (3 or more visits in a year); and (3) persistent users (3 or more visits in both years). Persistent users were more likely to be female, aged 45-64, and have insurance compared with infrequent and semi-frequent users. Thirty percent of persistent users had both a mental and chronic health condition. Persistent and semi-frequent users were no more likely than infrequent users to use the ED for non-emergent conditions, but were more likely to use the ED for primary care treatable and preventable conditions. Emergency department hotspots were located closer to federally qualified health centers, closer to the main ED, had higher rates of mental health and other chronic conditions.Black populations in the United States are disproportionately affected by HIV. This disparity may be affected by social and structural barriers to HIV testing, leading to undiagnosed infection and prolonged HIV transmissibility. Using data from a nationally representative sample of 1,727 Black men in the 2015 Behavioral Risk Factor Surveillance System we tested for differences in poverty, depression, and health care barriers between Black men who had been HIV tested in the past year and those who had not. We also tested a syndemic index of these factors. Number of syndemic factors was linearly associated with less HIV testing (aPR=0.79, 95% CI 0.66-0.95). Assumptions of unidimensionality were met. The use of a syndemic index was a superior approach to analyzing these factors individually, both in terms of model fit and associations detected. The accumulation of poverty, depression, and health care barriers has an adverse impact on HIV testing among Black men.We assessed the ability of high-risk criteria developed by Boston Health Care for the Homeless Program to identify increased mortality during a 10-year cohort study (January 2000-December 2009) of 445 unsheltered adults. To qualify as high-risk for mortality, an individual slept unsheltered for six consecutive months or longer plus had one or more of the following characteristics tri-morbidity, defined as co-occurring medical, psychiatric, and addiction diagnoses; one or more inpatient or respite admissions; three or more emergency department visits; 60 years old or older; HIV/AIDS; cirrhosis; renal failure; frostbite, hypothermia, or immersion foot. A total of 119 (26.7%) individuals met the high-risk criteria. The remaining 326 individuals in the cohort were considered lowerrisk. During the study, 134 deaths occurred; 52 (38.8%) were among high-risk individuals. Compared with sheltered individuals, the age-standardized mortality ratio for the high-risk group was 4.0 (95% confidence interval 3.0, 5.2) times higher and for the lower-risk group was 2.2 (1.8, 2.8) times higher. The hazard ratio, a measure of survival, for the high-risk group was 1.7 (1.2, 2.4) times that of the lower-risk group. High-risk criteria predicted an increased likelihood of mortality among unsheltered individuals. The lower-risk group also had high mortality rates compared with sheltered individuals.OBJECTIVE Study occurrence and consequences of deductibles and medical debt among privately insured under the Affordable Care Act. METHODS Analysis of 2012-2016 National Health Interview Survey data on privately insured adults younger than age 65 on the effect of deductibles on medical debt, deferred medical care, and office visits, by demographic characteristics, and treatable chronic diseases. RESULTS Rates of medical debt and deferred care decreased. https://www.selleckchem.com/products/resigratinib.html Medical debt is greater for those with any type of high deductible (HD) insurance, and among those more vulnerable (lower income, minority, treatable chronic diseases). Medical debt with HD's increased deferred needed medical care 6 fold and is highest for those with more treatable chronic diseases. CONCLUSION While medical debt and deferred care decreased for all privately insured, those HD-insured and vulnerable report higher medical debt rates markedly increasing deferred needed medical care. Highdeductible insurance risks adverse health and social consequences for those vulnerable.0 Commenti 0 condivisioni 1 Views 0 Anteprima -
Depression is a mental illness which is harmful seriously to the society. This study investigated the effects of fluoxetine on the CNPase+ oligodendrocytes in hippocampus of the depressed rats to explore the new target structure of antidepressants. Male Sprague-Dawley rats were used to build chronic unpredictable stress (CUS) depressed model of rats. Then, the depressed rats were divided into the CUS standard group and the CUS + fluoxetine (CUS/FLX) group. The CUS/FLX group was treated with fluoxetine at dose of 5 mg/(kg·d) from the fifth week to seventh week. After 7 weeks CUS intervention, the sucrose preference of the CUS standard group was significantly lower than that of the control group and the CUS/FLX group. The stereological results showed that the total number of the CNPase+ cells in the CA1, CA3, and DG subfield of the hippocampus in the CUS standard group were significantly decreased, when compared with the CNPase+ cells in the control group. However, the total number of the CNPase+ cells in the CA1 and CA3 subfield of the hippocampus in the CUS standard group was significantly decreased when it compared with CNPase+ cells in the CUS/FLX group. Therefore, fluoxetine might prevent the loss of CNPase+ oligodendrocytes in CA1 and CA3 subfields of hippocampus of the depressed rats. The oligodendrocytes in hippocampus may play an important role in the pathogenesis of depression. The current result might provide structural basis for the future studies that search for new antidepressant strategies. © 2020 Wiley Periodicals, Inc.BACKGROUND AND OBJECTIVES To investigate other-cause mortality (OCM) rates over time according to several baseline characteristics in bladder cancer (BCa) patients treated with radical cystectomy (RC). METHODS Within the Surveillance, Epidemiology, and End Results database (1988-2011), we identified 7702 T1-2 N0 M0 urothelial BCa patients treated with RC. Temporal trends and multivariable Cox regression (MCR) analyses assessed 5-year OCM. Data were stratified according to the year of diagnosis (1988-1995 vs 1996-2000 vs 2001-2004 vs 2005-2008 vs 2009-2011), age group (75) patients (32%-16%, slope -0.55% per year; P = .01), followed by patients aged 60 to 75 (21%-5%, slope -0.35% per year; P = .01), unmarried patients (16%-10%, slope -0.26% per year; P less then .001), male patients (14%-8.9%, slope -0.23% per year), and African Americans (16%-11%, slope -0.27% per year; P less then .001). MCR models corroborated these results. CONCLUSIONS Most important decrease in OCM after RC over the last decades was recorded in the elderly, unmarried, and male patients. Nonetheless, these three patient groups still represent ideal targets for efforts aimed at minimizing the morbidity and mortality after RC, as their risk of OCM is higher than in others. © 2020 Wiley Periodicals, Inc.The SARS-CoV-2 pandemic affecting the human respiratory system severely challenges public health and urgently demands for increasing our understanding of COVID-19 pathogenesis, especially host factors facilitating virus infection and replication. SARS-CoV-2 was reported to enter cells via binding to ACE2, followed by its priming by TMPRSS2. Here, we investigate ACE2 and TMPRSS2 expression levels and their distribution across cell types in lung tissue (twelve donors, 39,778 cells) and in cells derived from subsegmental bronchial branches (four donors, 17,521 cells) by single nuclei and single cell RNA sequencing, respectively. While TMPRSS2 is strongly expressed in both tissues, in the subsegmental bronchial branches ACE2 is predominantly expressed in a transient secretory cell type. Interestingly, these transiently differentiating cells show an enrichment for pathways related to RHO GTPase function and viral processes suggesting increased vulnerability for SARS-CoV-2 infection. https://www.selleckchem.com/products/tradipitant.html Our data provide a rich resource for future investigations of COVID-19 infection and pathogenesis. © 2020 The Authors. Published under the terms of the CC BY 4.0 license.ETHNOPHARMACOLOGICAL RELEVANCE The objective of traditional Chinese medicine (TCM) combination theory is to "reduce toxicity and increase efficiency", especially to solve the liver toxicity of many TCMs. Fructus Meliae Toosendan (CLZ)-Fructus Foeniculi (XHX) is a typical traditional Chinese herb pair that decreases the toxicity and increases the efficiency of the herbs. Fructus Meliae Toosendan (CLZ, cold-natured) has significant liver toxicity. However, it has been widely used in combination with Fructus Foeniculi (XHX, hot-natured) for thousands of years in TCM, in which form it shows no hepatotoxicity, indicating that the combined use of XHX and CLZ can reduce the hepatotoxicity of CLZ. Herb-herb interactions could affect herb pharmacokinetics and in vivo efficacy. The herb-herb interactions between CLZ and XHX are still unknown. MATERIALS AND METHODS This study used liquid chromatography tandem mass spectrometry (LC-MS) and gas chromatography tandem mass spectrometry (GC-MS) to establish methods for detececrease the risk of in vivo accumulation of the toxic constituent of CLZ, toosendanin, thus decreasing its toxicity. It has also been shown that CLZ can significantly increase absorption and bioavailability and attenuate the elimination process of trans-anethole in XHX, thus enhancing its efficacy. Hepatotoxicity studies indicate that CLZ has significant hepatotoxicity, and its combined use with XHX can decrease its liver-damaging properties. © 2020 John Wiley & Sons, Ltd.The key healthcare challenge of the coronavirus disease 2019 (COVID-19) pandemic is the safe delivery of respiratory support on a large scale. The care of critically ill COVID-19 patients is guided by our knowledge and experience with acute respiratory distress syndrome (ARDS), but this crisis is pushing patients and their clinicians into unchartered territories. One of the key decisions faced by healthcare systems is in selecting the appropriate devices for oxygen administration. The use of high-flow nasal oxygen (HFNO) in COVID-19 is the subject of **** debate, relating to the benefits and harms that may result for patients and healthcare workers alike. This article is protected by copyright. All rights reserved.
Depression is a mental illness which is harmful seriously to the society. This study investigated the effects of fluoxetine on the CNPase+ oligodendrocytes in hippocampus of the depressed rats to explore the new target structure of antidepressants. Male Sprague-Dawley rats were used to build chronic unpredictable stress (CUS) depressed model of rats. Then, the depressed rats were divided into the CUS standard group and the CUS + fluoxetine (CUS/FLX) group. The CUS/FLX group was treated with fluoxetine at dose of 5 mg/(kg·d) from the fifth week to seventh week. After 7 weeks CUS intervention, the sucrose preference of the CUS standard group was significantly lower than that of the control group and the CUS/FLX group. The stereological results showed that the total number of the CNPase+ cells in the CA1, CA3, and DG subfield of the hippocampus in the CUS standard group were significantly decreased, when compared with the CNPase+ cells in the control group. However, the total number of the CNPase+ cells in the CA1 and CA3 subfield of the hippocampus in the CUS standard group was significantly decreased when it compared with CNPase+ cells in the CUS/FLX group. Therefore, fluoxetine might prevent the loss of CNPase+ oligodendrocytes in CA1 and CA3 subfields of hippocampus of the depressed rats. The oligodendrocytes in hippocampus may play an important role in the pathogenesis of depression. The current result might provide structural basis for the future studies that search for new antidepressant strategies. © 2020 Wiley Periodicals, Inc.BACKGROUND AND OBJECTIVES To investigate other-cause mortality (OCM) rates over time according to several baseline characteristics in bladder cancer (BCa) patients treated with radical cystectomy (RC). METHODS Within the Surveillance, Epidemiology, and End Results database (1988-2011), we identified 7702 T1-2 N0 M0 urothelial BCa patients treated with RC. Temporal trends and multivariable Cox regression (MCR) analyses assessed 5-year OCM. Data were stratified according to the year of diagnosis (1988-1995 vs 1996-2000 vs 2001-2004 vs 2005-2008 vs 2009-2011), age group (75) patients (32%-16%, slope -0.55% per year; P = .01), followed by patients aged 60 to 75 (21%-5%, slope -0.35% per year; P = .01), unmarried patients (16%-10%, slope -0.26% per year; P less then .001), male patients (14%-8.9%, slope -0.23% per year), and African Americans (16%-11%, slope -0.27% per year; P less then .001). MCR models corroborated these results. CONCLUSIONS Most important decrease in OCM after RC over the last decades was recorded in the elderly, unmarried, and male patients. Nonetheless, these three patient groups still represent ideal targets for efforts aimed at minimizing the morbidity and mortality after RC, as their risk of OCM is higher than in others. © 2020 Wiley Periodicals, Inc.The SARS-CoV-2 pandemic affecting the human respiratory system severely challenges public health and urgently demands for increasing our understanding of COVID-19 pathogenesis, especially host factors facilitating virus infection and replication. SARS-CoV-2 was reported to enter cells via binding to ACE2, followed by its priming by TMPRSS2. Here, we investigate ACE2 and TMPRSS2 expression levels and their distribution across cell types in lung tissue (twelve donors, 39,778 cells) and in cells derived from subsegmental bronchial branches (four donors, 17,521 cells) by single nuclei and single cell RNA sequencing, respectively. While TMPRSS2 is strongly expressed in both tissues, in the subsegmental bronchial branches ACE2 is predominantly expressed in a transient secretory cell type. Interestingly, these transiently differentiating cells show an enrichment for pathways related to RHO GTPase function and viral processes suggesting increased vulnerability for SARS-CoV-2 infection. https://www.selleckchem.com/products/tradipitant.html Our data provide a rich resource for future investigations of COVID-19 infection and pathogenesis. © 2020 The Authors. Published under the terms of the CC BY 4.0 license.ETHNOPHARMACOLOGICAL RELEVANCE The objective of traditional Chinese medicine (TCM) combination theory is to "reduce toxicity and increase efficiency", especially to solve the liver toxicity of many TCMs. Fructus Meliae Toosendan (CLZ)-Fructus Foeniculi (XHX) is a typical traditional Chinese herb pair that decreases the toxicity and increases the efficiency of the herbs. Fructus Meliae Toosendan (CLZ, cold-natured) has significant liver toxicity. However, it has been widely used in combination with Fructus Foeniculi (XHX, hot-natured) for thousands of years in TCM, in which form it shows no hepatotoxicity, indicating that the combined use of XHX and CLZ can reduce the hepatotoxicity of CLZ. Herb-herb interactions could affect herb pharmacokinetics and in vivo efficacy. The herb-herb interactions between CLZ and XHX are still unknown. MATERIALS AND METHODS This study used liquid chromatography tandem mass spectrometry (LC-MS) and gas chromatography tandem mass spectrometry (GC-MS) to establish methods for detececrease the risk of in vivo accumulation of the toxic constituent of CLZ, toosendanin, thus decreasing its toxicity. It has also been shown that CLZ can significantly increase absorption and bioavailability and attenuate the elimination process of trans-anethole in XHX, thus enhancing its efficacy. Hepatotoxicity studies indicate that CLZ has significant hepatotoxicity, and its combined use with XHX can decrease its liver-damaging properties. © 2020 John Wiley & Sons, Ltd.The key healthcare challenge of the coronavirus disease 2019 (COVID-19) pandemic is the safe delivery of respiratory support on a large scale. The care of critically ill COVID-19 patients is guided by our knowledge and experience with acute respiratory distress syndrome (ARDS), but this crisis is pushing patients and their clinicians into unchartered territories. One of the key decisions faced by healthcare systems is in selecting the appropriate devices for oxygen administration. The use of high-flow nasal oxygen (HFNO) in COVID-19 is the subject of much debate, relating to the benefits and harms that may result for patients and healthcare workers alike. This article is protected by copyright. All rights reserved.0 Commenti 0 condivisioni 1 Views 0 Anteprima -
3%) in those with (P = .01). Patients with **** had lower eGFR at last follow-up. https://www.selleckchem.com/ Conclusion **** and CKD are common after NKSOT. Incidence of CKD is higher in those with ****. AKI episodes are associated with a drop in eGFR during follow-up. Identifying patients who have had AKI is an important first step in identifying those at risk of repeated AKI episodes. These patients would benefit from closer monitoring for CKD, lower nephrotoxic drug use, and follow-up with nephrology.Reconstruction of complex **** defects is challenging for reconstructive surgeons, as it should preserve function, provide adequate coverage, and minimize morbidity. We present a case of multiple-step reconstruction after resection of a large squamous cell carcinoma recurrence in a 68-year-old man, with local perforator ***** and a reverse-flow latissimus dorsi myocutaneous flap. After radical excision, four propeller perforator ***** were harvested to cover a 30 × 25 cm defect, based on the dorsal branch of the fifth posterior intercostal arteries (right 20 × 9 cm, left 17 × 9 cm) and on the superior gluteal arteries (right 20 × 11 cm, left 21 × 12 cm) bilaterally. In the second step, bilateral propeller perforator ***** based on the fourth lumbar arteries (right 18 × 13 cm, left 23 × 11 cm) were transposed to cover the residual loss of tissues. After 5 months, a recurrence occurred on the left midback. A wide en bloc excision of the last three ribs and pulmonary pleura was performed, and the synthetic mesh used for thoracic wall reconstruction was covered with an ipsilateral 20 × 10 cm reverse-flow latissimus dorsi myocutaneous flap based on the serratus anterior branch. All the ***** healed uneventfully and there were no donor-site complications. Two years postoperatively, the patient had a cosmetically acceptable result without any functional impairment. The reverse-flow latissimus dorsi myocutaneous flap can represent a salvage procedure in **** complex defects reconstruction, especially when other local ***** have already been harvested in previous reconstructive procedures.Introduction The World Federation of Hemophilia (WFH) strives to achieve care for all patients with inherited bleeding disorders through research, advocacy, capacity building and education. The WFH developed and implemented the Annual Global Survey (AGS), through which comprehensive demographic and treatment data on bleeding disorders are collected each year from its constituent non-governmental national organizations. Aim To describe the development, methodology and achievements of the WFH AGS over the past 20 years. Methods The AGS is a yearly cross-sectional survey. Data are collected using a standardized form (available online and on paper), quality checked and reviewed, and published in English, French and Spanish. Over time, the AGS has been modified in response to changes in treatment landscape or emerging new issues. Results Over the past 20 years, the AGS has reported an increase in the number of countries participating in the survey, a tripling in the number of people identified with rare bleeding disorders and an increase in the amount of factor used to treat people with haemophilia. Yet, a large treatment inequity gap still exists across the globe. In response to this gap, the WFH has analysed the AGS reports which has stimulated further development in quality of care indicators, estimates of the global prevalence of haemophilia, patient-level data collection efforts like the World Bleeding Disorders Registry and the Gene Therapy Registry. Conclusion The AGS has provided evidence to support research, programme planning and development activities of the WFH.Oxygen evolution reaction (OER) as the rate-determining reaction of water splitting has been attracting enormous attention. As present, only some noble-metal oxide materials (IrO 2 and RuO 2 ) have been reported as efficient OER electrocatalysts for OER. However, the high cost and scarcity of these noble-metal oxide materials greatly hamper their large-scale practical application. Herein, we synthesize 100% (111) faceted NiFe 2 O 4 single crystals with multiple vacancies (cation vacancies and O vacancies). The (111) facets can supply enough platform to break chemical bonds and enhance electrocatalytic activity, due to its high density of atomic steps and kink atoms. Compared to NiFe 2 O 4 (without vacancies), the as-synthesized NiFe 2 O 4 -Ar (with vacancies) exhibits a dramatically improved OER activity. The NiFe 2 O 4 -Ar-30 shows the lowest onset potential (1.45 V vs RHE) and the best electrocatalytic OER activity with the lowest overpotential of 234 mV at 50 mA cm -2 . Furthermore, based on the theoretical calculations that the introduction of multiple vacancies can effectively modulate the electronic structure of active centers to accelerate charge transfer and reaction intermediates adsorption, which can reduce the reaction energy barrier and enhance the activity of electrochemical OER.Cement is used both as a construction material and for medical applications. Previously, it has been shown that the physiological polymer inorganic polyphosphate (polyP) is morphogenetically active in regeneration of skin, bone, and cartilage. The present study investigates the question if this polymer is also a suitable additive to improve the self-healing capacity not only of construction cement but also of inorganic bone void fillers. For the application in the cement, two different polyP-based amorphous nanoparticles (NP) are prepared, amorphous Ca-polyP NP and amorphous Ca-carbonate (ACC) NP. The particles are integrated into poly(methyl methacrylate) in a concentration ratio of 110. This material applied onto Portland cement blocks either by brush application or by blow spinning strongly accelerates the self-healing property of the cement after a 10 day incubation period. Most likely, this process depends on bacteria and their membrane-associated alkaline phosphatase, resulting in the formation of calcite from ACC. In a second approach, polyP is integrated into a calcium-silicate-based cement used in reconstitutive medicine. Subsequently, the cement becomes softer and more elastic. The data show that bioinspired polyP/ACC NP are suitable additives to improve the self-healing of construction cement and to biologize bone cement.
3%) in those with (P = .01). Patients with pAKI had lower eGFR at last follow-up. https://www.selleckchem.com/ Conclusion pAKI and CKD are common after NKSOT. Incidence of CKD is higher in those with pAKI. AKI episodes are associated with a drop in eGFR during follow-up. Identifying patients who have had AKI is an important first step in identifying those at risk of repeated AKI episodes. These patients would benefit from closer monitoring for CKD, lower nephrotoxic drug use, and follow-up with nephrology.Reconstruction of complex back defects is challenging for reconstructive surgeons, as it should preserve function, provide adequate coverage, and minimize morbidity. We present a case of multiple-step reconstruction after resection of a large squamous cell carcinoma recurrence in a 68-year-old man, with local perforator flaps and a reverse-flow latissimus dorsi myocutaneous flap. After radical excision, four propeller perforator flaps were harvested to cover a 30 × 25 cm defect, based on the dorsal branch of the fifth posterior intercostal arteries (right 20 × 9 cm, left 17 × 9 cm) and on the superior gluteal arteries (right 20 × 11 cm, left 21 × 12 cm) bilaterally. In the second step, bilateral propeller perforator flaps based on the fourth lumbar arteries (right 18 × 13 cm, left 23 × 11 cm) were transposed to cover the residual loss of tissues. After 5 months, a recurrence occurred on the left midback. A wide en bloc excision of the last three ribs and pulmonary pleura was performed, and the synthetic mesh used for thoracic wall reconstruction was covered with an ipsilateral 20 × 10 cm reverse-flow latissimus dorsi myocutaneous flap based on the serratus anterior branch. All the flaps healed uneventfully and there were no donor-site complications. Two years postoperatively, the patient had a cosmetically acceptable result without any functional impairment. The reverse-flow latissimus dorsi myocutaneous flap can represent a salvage procedure in back complex defects reconstruction, especially when other local flaps have already been harvested in previous reconstructive procedures.Introduction The World Federation of Hemophilia (WFH) strives to achieve care for all patients with inherited bleeding disorders through research, advocacy, capacity building and education. The WFH developed and implemented the Annual Global Survey (AGS), through which comprehensive demographic and treatment data on bleeding disorders are collected each year from its constituent non-governmental national organizations. Aim To describe the development, methodology and achievements of the WFH AGS over the past 20 years. Methods The AGS is a yearly cross-sectional survey. Data are collected using a standardized form (available online and on paper), quality checked and reviewed, and published in English, French and Spanish. Over time, the AGS has been modified in response to changes in treatment landscape or emerging new issues. Results Over the past 20 years, the AGS has reported an increase in the number of countries participating in the survey, a tripling in the number of people identified with rare bleeding disorders and an increase in the amount of factor used to treat people with haemophilia. Yet, a large treatment inequity gap still exists across the globe. In response to this gap, the WFH has analysed the AGS reports which has stimulated further development in quality of care indicators, estimates of the global prevalence of haemophilia, patient-level data collection efforts like the World Bleeding Disorders Registry and the Gene Therapy Registry. Conclusion The AGS has provided evidence to support research, programme planning and development activities of the WFH.Oxygen evolution reaction (OER) as the rate-determining reaction of water splitting has been attracting enormous attention. As present, only some noble-metal oxide materials (IrO 2 and RuO 2 ) have been reported as efficient OER electrocatalysts for OER. However, the high cost and scarcity of these noble-metal oxide materials greatly hamper their large-scale practical application. Herein, we synthesize 100% (111) faceted NiFe 2 O 4 single crystals with multiple vacancies (cation vacancies and O vacancies). The (111) facets can supply enough platform to break chemical bonds and enhance electrocatalytic activity, due to its high density of atomic steps and kink atoms. Compared to NiFe 2 O 4 (without vacancies), the as-synthesized NiFe 2 O 4 -Ar (with vacancies) exhibits a dramatically improved OER activity. The NiFe 2 O 4 -Ar-30 shows the lowest onset potential (1.45 V vs RHE) and the best electrocatalytic OER activity with the lowest overpotential of 234 mV at 50 mA cm -2 . Furthermore, based on the theoretical calculations that the introduction of multiple vacancies can effectively modulate the electronic structure of active centers to accelerate charge transfer and reaction intermediates adsorption, which can reduce the reaction energy barrier and enhance the activity of electrochemical OER.Cement is used both as a construction material and for medical applications. Previously, it has been shown that the physiological polymer inorganic polyphosphate (polyP) is morphogenetically active in regeneration of skin, bone, and cartilage. The present study investigates the question if this polymer is also a suitable additive to improve the self-healing capacity not only of construction cement but also of inorganic bone void fillers. For the application in the cement, two different polyP-based amorphous nanoparticles (NP) are prepared, amorphous Ca-polyP NP and amorphous Ca-carbonate (ACC) NP. The particles are integrated into poly(methyl methacrylate) in a concentration ratio of 110. This material applied onto Portland cement blocks either by brush application or by blow spinning strongly accelerates the self-healing property of the cement after a 10 day incubation period. Most likely, this process depends on bacteria and their membrane-associated alkaline phosphatase, resulting in the formation of calcite from ACC. In a second approach, polyP is integrated into a calcium-silicate-based cement used in reconstitutive medicine. Subsequently, the cement becomes softer and more elastic. The data show that bioinspired polyP/ACC NP are suitable additives to improve the self-healing of construction cement and to biologize bone cement.0 Commenti 0 condivisioni 1 Views 0 Anteprima -
In the opposite direction, depressive symptoms directly led individuals to drift into poverty at baseline and at follow-up. CONCLUSIONS This study suggested that social causation and social selection may operate concurrently. Proactive interventions, especially ones focusing on modifiable protective factors that our findings identified as mediators in the link between poverty and depression, are urgently needed to break the vicious cycle of poverty and depression and create a virtuous cycle of increasing returns. While several studies find adverse birth outcomes among Latina mothers after discrete immigration enforcement events, it is unknown whether day-to-day enforcement activities precede adverse birth outcomes. This study examines birth outcomes among Latinas following local immigrant apprehensions-48-h holds on suspected undocumented immigrants by local law enforcement-over an 8-year period. County-level apprehensions, scaled to 1000 of the population, were averaged across the third trimester. We analyzed the association between county-level apprehensions and low birth weight (LBW) and preterm birth (PTB) between 2008 and 2015 in California using spline logistic regression models with knots at the quartiles of apprehensions and included covariates, county fixed-effects, and a time propensity variable to account for trend and seasonality in LBW and PTB. We performed these regressions for non-Hispanic White, all Latina, and foreign-born (FB) Latina mothers. There were no significant associations between apprehensions and LBW. For all Latina women, there were no differences in PTB between zero apprehensions and levels that were below the median. Latina mothers exposed to moderately high apprehensions had lower odds for PTB compared to zero apprehensions. At the highest levels of apprehensions, however, Latina women showed significantly elevated odds of PTB (at 0.71 apprehensions OR = 1.06, 95% CI 1.01-1.12). PTB responded differentially to localized enforcement threats. https://www.selleckchem.com/products/dl-alanine.html At lower and moderate levels, Latino communities may have mobilized in ways that reduced the risk for PTB. Risks emerged at the highest levels of enforcement, underlying the intense fear and anxiety in hyper-surveilled areas. Research on mental illness stigma tends to focus on the most severe diagnoses and settings, and it pays insufficient attention to how the treatment process itself relates to stigma. This study, calling on 28 interviews with providers treating a wide range of mental problems in varied settings, addresses these issues. Findings reveal that stigma is associated with treatment across settings and severity, although dynamics vary based on the intensity of setting. Mental illness stigma competes with other stigmas in presenting for treatment. Once in treatment, mental health care acts as a stigma-mitigating "stamp" of risk containment for other societal systems and institutions, signifying that risks posed by clients' problems are being officially contained. Reflecting the increasing relevance of quality outcomes for hospital payments, some hospital boards have promoted physicians into top-management positions. So far, however, the literature regarding the impact of physician leadership on care quality or cost is limited. The aim of this study is to examine the link between the educational background of a hospital's CEO and its performance in terms of medical quality and financial success. Examining data of 370 German hospitals for the year 2016, this study uses the second largest sample of its kind and the largest for a single country. Multivariate regression analysis with matching is used to model the effect of the CEO's education, controlling for tenure, competition, hospital size and ownership. We find that physician-led hospitals have lower in-hospital mortality rates for pneumonia and higher patient satisfaction (at the 5% and 1% significance level, respectively). In contrast, institutions led by managers with economics or business degrees have better financial performance (at the 10% significance level) and superior outcomes for hip and knee surgeries (at the 1% and 10% significance level). Our findings support prior results regarding financial outcomes and mortality. However, including a broad spectrum of measures for clinical quality, we draw a more nuanced picture that does not point to the straightforward interpretation that physician CEOs lead to superior medical quality. Many studies find a strong positive correlation between education and adult health. A subtler question is whether this correlation can be interpreted as a causal relationship. We combine multi-country data from two cross-sections of the European Union Statistics on Income and Living Conditions (EU-SILC) survey and use exogenous variation in compulsory years of schooling across countries and cohorts induced by compulsory schooling laws. We find no causal effect of education on any of our several health measures. This finding is extremely robust to different changes in our main specification and holds using other databases. We discuss different explanations for our results. BACKGROUND Environmental exposure to perfluorooctane sulfonate (PFOS) is associated with various adverse outcomes in humans. However, risk assessment for PFOS with the traditional risk estimation method is faced with multiple challenges because there are high variabilities and uncertainties in its toxicokinetics and toxicity between species and among different types of studies. OBJECTIVES This study aimed to develop a robust probabilistic risk assessment framework accounting for interspecies and inter-experiment variabilities and uncertainties to derive the human equivalent dose (HED) and reference dose for PFOS. METHODS A Bayesian dose-response model was developed to analyze selected 34 critical studies, including human epidemiological, animal in vivo, and ToxCast in vitro toxicity datasets. The dose-response results were incorporated into a multi-species physiologically based pharmacokinetic (PBPK) model to reduce the toxicokinetic/toxicodynamic variabilities. In addition, a population-based probabilistic risk assessment of PFOS was performed for Asian, Australian, European, and North American populations, respectively, based on reported environmental exposure levels.
In the opposite direction, depressive symptoms directly led individuals to drift into poverty at baseline and at follow-up. CONCLUSIONS This study suggested that social causation and social selection may operate concurrently. Proactive interventions, especially ones focusing on modifiable protective factors that our findings identified as mediators in the link between poverty and depression, are urgently needed to break the vicious cycle of poverty and depression and create a virtuous cycle of increasing returns. While several studies find adverse birth outcomes among Latina mothers after discrete immigration enforcement events, it is unknown whether day-to-day enforcement activities precede adverse birth outcomes. This study examines birth outcomes among Latinas following local immigrant apprehensions-48-h holds on suspected undocumented immigrants by local law enforcement-over an 8-year period. County-level apprehensions, scaled to 1000 of the population, were averaged across the third trimester. We analyzed the association between county-level apprehensions and low birth weight (LBW) and preterm birth (PTB) between 2008 and 2015 in California using spline logistic regression models with knots at the quartiles of apprehensions and included covariates, county fixed-effects, and a time propensity variable to account for trend and seasonality in LBW and PTB. We performed these regressions for non-Hispanic White, all Latina, and foreign-born (FB) Latina mothers. There were no significant associations between apprehensions and LBW. For all Latina women, there were no differences in PTB between zero apprehensions and levels that were below the median. Latina mothers exposed to moderately high apprehensions had lower odds for PTB compared to zero apprehensions. At the highest levels of apprehensions, however, Latina women showed significantly elevated odds of PTB (at 0.71 apprehensions OR = 1.06, 95% CI 1.01-1.12). PTB responded differentially to localized enforcement threats. https://www.selleckchem.com/products/dl-alanine.html At lower and moderate levels, Latino communities may have mobilized in ways that reduced the risk for PTB. Risks emerged at the highest levels of enforcement, underlying the intense fear and anxiety in hyper-surveilled areas. Research on mental illness stigma tends to focus on the most severe diagnoses and settings, and it pays insufficient attention to how the treatment process itself relates to stigma. This study, calling on 28 interviews with providers treating a wide range of mental problems in varied settings, addresses these issues. Findings reveal that stigma is associated with treatment across settings and severity, although dynamics vary based on the intensity of setting. Mental illness stigma competes with other stigmas in presenting for treatment. Once in treatment, mental health care acts as a stigma-mitigating "stamp" of risk containment for other societal systems and institutions, signifying that risks posed by clients' problems are being officially contained. Reflecting the increasing relevance of quality outcomes for hospital payments, some hospital boards have promoted physicians into top-management positions. So far, however, the literature regarding the impact of physician leadership on care quality or cost is limited. The aim of this study is to examine the link between the educational background of a hospital's CEO and its performance in terms of medical quality and financial success. Examining data of 370 German hospitals for the year 2016, this study uses the second largest sample of its kind and the largest for a single country. Multivariate regression analysis with matching is used to model the effect of the CEO's education, controlling for tenure, competition, hospital size and ownership. We find that physician-led hospitals have lower in-hospital mortality rates for pneumonia and higher patient satisfaction (at the 5% and 1% significance level, respectively). In contrast, institutions led by managers with economics or business degrees have better financial performance (at the 10% significance level) and superior outcomes for hip and knee surgeries (at the 1% and 10% significance level). Our findings support prior results regarding financial outcomes and mortality. However, including a broad spectrum of measures for clinical quality, we draw a more nuanced picture that does not point to the straightforward interpretation that physician CEOs lead to superior medical quality. Many studies find a strong positive correlation between education and adult health. A subtler question is whether this correlation can be interpreted as a causal relationship. We combine multi-country data from two cross-sections of the European Union Statistics on Income and Living Conditions (EU-SILC) survey and use exogenous variation in compulsory years of schooling across countries and cohorts induced by compulsory schooling laws. We find no causal effect of education on any of our several health measures. This finding is extremely robust to different changes in our main specification and holds using other databases. We discuss different explanations for our results. BACKGROUND Environmental exposure to perfluorooctane sulfonate (PFOS) is associated with various adverse outcomes in humans. However, risk assessment for PFOS with the traditional risk estimation method is faced with multiple challenges because there are high variabilities and uncertainties in its toxicokinetics and toxicity between species and among different types of studies. OBJECTIVES This study aimed to develop a robust probabilistic risk assessment framework accounting for interspecies and inter-experiment variabilities and uncertainties to derive the human equivalent dose (HED) and reference dose for PFOS. METHODS A Bayesian dose-response model was developed to analyze selected 34 critical studies, including human epidemiological, animal in vivo, and ToxCast in vitro toxicity datasets. The dose-response results were incorporated into a multi-species physiologically based pharmacokinetic (PBPK) model to reduce the toxicokinetic/toxicodynamic variabilities. In addition, a population-based probabilistic risk assessment of PFOS was performed for Asian, Australian, European, and North American populations, respectively, based on reported environmental exposure levels.0 Commenti 0 condivisioni 1 Views 0 Anteprima -
Introduction Differentiating between a urinary tract infection and asymptomatic bacteriuria is an important distinction to make, especially in noncommunicative patients. An algorithm meant to aid in the diagnosis and treatment of urinary tract infections in this population was implemented within a psychiatric emergency department in January 2019. The primary objective of this project was to assess the impact of the algorithm (the intervention) regarding symptom documentation and antibiotic use. Secondary objectives included assessing changes in inappropriate prescribing and urine culture orders. https://www.selleckchem.com/products/a-438079-hcl.html Methods Preintervention outcomes were measured from August 1, 2018, through November 30, 2018, while the postintervention cohort included patients admitted after January 31, 2019 and discharged before June 1, 2019. Adults admitted to psychiatry with a urinalysis ordered in the emergency department and an ICD-10 code representing dementia, delirium, autism spectrum disorder, or intellectual disability were included; pregnant patients were excluded. Results The preintervention (n = 56) and postintervention (n = 34) cohorts were well balanced with an average age of 66.5 and 70 years, respectively. Neurocognitive disorder was the diagnosis for inclusion in approximately two-thirds of both groups. Numerically, postalgorithm implementation, symptoms were documented more frequently (20.6% vs 10.7%, P = .23) and antibiotics used less often (2.9% vs 14.3%, P = .15). Inappropriate prescribing occurred in 12.5% of preintervention cohort compared to no patients postintervention (P = .04). Discussion The creation and implementation of an algorithm assisting in the diagnosis and treatment of urinary tract infections in noncommunicative patients was associated with a trend toward increased symptom documentation and decreased overall antibiotic use, and significantly increased appropriate antibiotic prescribing. © 2020 CPNP. The Mental Health Clinician is a publication of the College of Psychiatric and Neurologic Pharmacists.Introduction The objectives of this study were to describe health professional students' experiences and opinions about patients with opioid-use disorder (OUD), to summarize evaluation results from an OUD educational event and to compare results by sex, discipline, and clinical experience. Methods The OUD educational event lasted 75 minutes and covered the epidemiology of the opioid epidemic, evidence-based prevention and treatment services, stigma, and recommendations on how to improve care. An anonymous pre-event survey collected information on attendees' experiences and opinions about patients with OUD. The postevent survey collected information on the attendees' evaluation of the event. Results Forty percent of students reported having a friend or family member who has/had an OUD. A minority (29.1%) reported that they would be uncomfortable working with patients with OUD or would prefer not to interact with patients with OUD (27.7%). Overall, the event evaluation results were very positive, and 85.5% reported that the information would change or influence their clinical practices. The open-ended responses found that the content was informative (n = 36); the attendees liked the inclusion of statistics (n = 19) and that the content was locally focused (n = 13). Discussion Health professional students participating in this event had fewer negative opinions of patients with OUD than previous research has found, and this may, in part, be explained by their personal experiences. Overall, health professional students want to learn more about patients with OUD. © 2020 CPNP. The Mental Health Clinician is a publication of the College of Psychiatric and Neurologic Pharmacists.Introduction The use of smartphones throughout the United States continues to rise. Although smartphones have increased our capacity to access information, there is concern if excessive use may impact mental health. The purpose of this study was to examine whether a relationship exists between smartphone use and the presence of obsessive-compulsive symptoms (OCS) or behaviors. Methods A 33-item online survey was developed with 19 items relating to Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) criteria for obsessive-compulsive disorder (OCD). A survey response was considered positive for possible OCS if participants answered at least 3 questions as Most of the time or All of the time for the OCD-related questions structured around the DSM-5 criteria for OCD while also using their smartphone for greater than 2 or more hours per day. Results A total of 308 of 550 subjects identified spending 2 or more hours on their smartphone per day and also answered positively on 3 or more questions designed to identify OCS. A statistically significant difference was discovered between those who used their smartphone for 2 or more hours per day and those who met 3 or more positive criteria for OCS compared to those who used their smartphone less than 2 hours per day (P less then .00001). Discussion The results of this study demonstrate a possible relationship between smartphone use and OCS. Additional research needs to be conducted to further investigate these results to determine their significance in clinical practice. © 2020 CPNP. The Mental Health Clinician is a publication of the College of Psychiatric and Neurologic Pharmacists.COVID-19 (Coronavirus Disease 2019) has sparked a remarkable public response in the United States. The following publication highlights the integral role that Emergency Medicine (EM) providers are afforded as a result of the public health circumstances. By embracing the unique outlet of direct patient coordination of care, EM providers can correct public misconceptions and promote more appropriate social distancing practices to the greater community. Copyright © 2020, Gaeta et al.Hepatitis E is usually a self-limiting disease that is considered rare in western countries. Outside of endemic regions, hepatitis E is seldom considered a cause of liver failure. We describe the first reported case of hepatitis E induced acute liver failure in the Caribbean island of Trinidad and the wider Caribbean; all traditionally considered non-endemic regions. The patient was a previously well young female who, upon investigation, was found to have radiographic signs suggesting underlying chronic liver disease. Subsequent testing yielded a positive hepatitis E immunoglobulin (Ig) M leading to the diagnose of hepatitis E induced acute on chronic liver failure. The patient's condition quickly deteriorated following the expected pattern of multiorgan failure associated with the disease. She died after a six-day intensive care unit (ICU) stay. Copyright © 2020, Singh et al.
Introduction Differentiating between a urinary tract infection and asymptomatic bacteriuria is an important distinction to make, especially in noncommunicative patients. An algorithm meant to aid in the diagnosis and treatment of urinary tract infections in this population was implemented within a psychiatric emergency department in January 2019. The primary objective of this project was to assess the impact of the algorithm (the intervention) regarding symptom documentation and antibiotic use. Secondary objectives included assessing changes in inappropriate prescribing and urine culture orders. https://www.selleckchem.com/products/a-438079-hcl.html Methods Preintervention outcomes were measured from August 1, 2018, through November 30, 2018, while the postintervention cohort included patients admitted after January 31, 2019 and discharged before June 1, 2019. Adults admitted to psychiatry with a urinalysis ordered in the emergency department and an ICD-10 code representing dementia, delirium, autism spectrum disorder, or intellectual disability were included; pregnant patients were excluded. Results The preintervention (n = 56) and postintervention (n = 34) cohorts were well balanced with an average age of 66.5 and 70 years, respectively. Neurocognitive disorder was the diagnosis for inclusion in approximately two-thirds of both groups. Numerically, postalgorithm implementation, symptoms were documented more frequently (20.6% vs 10.7%, P = .23) and antibiotics used less often (2.9% vs 14.3%, P = .15). Inappropriate prescribing occurred in 12.5% of preintervention cohort compared to no patients postintervention (P = .04). Discussion The creation and implementation of an algorithm assisting in the diagnosis and treatment of urinary tract infections in noncommunicative patients was associated with a trend toward increased symptom documentation and decreased overall antibiotic use, and significantly increased appropriate antibiotic prescribing. © 2020 CPNP. The Mental Health Clinician is a publication of the College of Psychiatric and Neurologic Pharmacists.Introduction The objectives of this study were to describe health professional students' experiences and opinions about patients with opioid-use disorder (OUD), to summarize evaluation results from an OUD educational event and to compare results by sex, discipline, and clinical experience. Methods The OUD educational event lasted 75 minutes and covered the epidemiology of the opioid epidemic, evidence-based prevention and treatment services, stigma, and recommendations on how to improve care. An anonymous pre-event survey collected information on attendees' experiences and opinions about patients with OUD. The postevent survey collected information on the attendees' evaluation of the event. Results Forty percent of students reported having a friend or family member who has/had an OUD. A minority (29.1%) reported that they would be uncomfortable working with patients with OUD or would prefer not to interact with patients with OUD (27.7%). Overall, the event evaluation results were very positive, and 85.5% reported that the information would change or influence their clinical practices. The open-ended responses found that the content was informative (n = 36); the attendees liked the inclusion of statistics (n = 19) and that the content was locally focused (n = 13). Discussion Health professional students participating in this event had fewer negative opinions of patients with OUD than previous research has found, and this may, in part, be explained by their personal experiences. Overall, health professional students want to learn more about patients with OUD. © 2020 CPNP. The Mental Health Clinician is a publication of the College of Psychiatric and Neurologic Pharmacists.Introduction The use of smartphones throughout the United States continues to rise. Although smartphones have increased our capacity to access information, there is concern if excessive use may impact mental health. The purpose of this study was to examine whether a relationship exists between smartphone use and the presence of obsessive-compulsive symptoms (OCS) or behaviors. Methods A 33-item online survey was developed with 19 items relating to Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) criteria for obsessive-compulsive disorder (OCD). A survey response was considered positive for possible OCS if participants answered at least 3 questions as Most of the time or All of the time for the OCD-related questions structured around the DSM-5 criteria for OCD while also using their smartphone for greater than 2 or more hours per day. Results A total of 308 of 550 subjects identified spending 2 or more hours on their smartphone per day and also answered positively on 3 or more questions designed to identify OCS. A statistically significant difference was discovered between those who used their smartphone for 2 or more hours per day and those who met 3 or more positive criteria for OCS compared to those who used their smartphone less than 2 hours per day (P less then .00001). Discussion The results of this study demonstrate a possible relationship between smartphone use and OCS. Additional research needs to be conducted to further investigate these results to determine their significance in clinical practice. © 2020 CPNP. The Mental Health Clinician is a publication of the College of Psychiatric and Neurologic Pharmacists.COVID-19 (Coronavirus Disease 2019) has sparked a remarkable public response in the United States. The following publication highlights the integral role that Emergency Medicine (EM) providers are afforded as a result of the public health circumstances. By embracing the unique outlet of direct patient coordination of care, EM providers can correct public misconceptions and promote more appropriate social distancing practices to the greater community. Copyright © 2020, Gaeta et al.Hepatitis E is usually a self-limiting disease that is considered rare in western countries. Outside of endemic regions, hepatitis E is seldom considered a cause of liver failure. We describe the first reported case of hepatitis E induced acute liver failure in the Caribbean island of Trinidad and the wider Caribbean; all traditionally considered non-endemic regions. The patient was a previously well young female who, upon investigation, was found to have radiographic signs suggesting underlying chronic liver disease. Subsequent testing yielded a positive hepatitis E immunoglobulin (Ig) M leading to the diagnose of hepatitis E induced acute on chronic liver failure. The patient's condition quickly deteriorated following the expected pattern of multiorgan failure associated with the disease. She died after a six-day intensive care unit (ICU) stay. Copyright © 2020, Singh et al.0 Commenti 0 condivisioni 7 Views 0 Anteprima -
The latex and antiseptic groups showed increases of myeloperoxidase levels on the 2nd day and showed important reductions from the 7th day. Study limitations Acute superficial wound model in rats and non-use of gel-cream (medium) without latex. Conclusion In conclusion, non-toxic latex stimulated migration/proliferation of keratinocytes in vitro and significantly accelerated wound healing in animal excoriation models compared to chlorhexidine or saline.Chromoblastomycosis is a subcutaneous mycosis with chronic evolution that mainly affects the lower limbs and, less frequently, the auricles. Clinically, it presents with papillary verrucous, nodular, and/or tumoral lesions, whether isolated or infiltrated, forming plaques and, sometimes, atrophic in some areas. Histopathologically, it is characterized by a dermal granulomatous inflammatory infiltrate, and the diagnosis can be confirmed by the presence of fumagoid bodies in anatomopathological or direct mycological exams. The treatment to be indicated will depend on the extent and location of the lesions, using systemic antifungals, surgical removal, cryotherapy, thermotherapy, and immunoadjuvants. The present study reports an atypical presentation of chromoblastomycosis on the auricle.Background Regional differences in the profile and treatment strategies of patients with cardiometabolic diseases have been studied in several different countries. The Cardio-Vascular and metabolic treatments in Canada Assessment of REal-life therapeutic value (CV-CARE) registry was designed to evaluate patient profiles and medical management of cardiometabolic diseases in routine clinical care settings across Canada. Primary objectives were to (1) evaluate regional variability of patient profiles with cardiometabolic disease(s) and (2) assess treatment differences of patients treated for type 2 diabetes (T2D), hypercholesterolemia (HCh), and hypertension (HTN) across Canada. Methods CV-CARE is a multi-center, observational, prospective registry that enrolled Canadian patients treated with metformin-extended release (MetER) for T2D, colesevelam (C) for HCh, azilsartan (AZI) for mild-to-moderate essential HTN and azilsartan/chlorthalidone (AZI/CHL) for severe, essential HTN. Patient characteristics and treatmes in both baseline profile and treatments were observed which could have an impact on long-term outcomes.Background Total hip arthroplasty (THA) of patients with a proximal femoral deformity is technically demanding. This deformity poses the risk of femoral fracture or perforation; stem malposition; and failed stem fixation. To insert a femoral stem in neutral position with a good fit, we removed the greater trochanter in case of a varus deformity, and the lesser trochanter in case of valgus deformity, while performing THA. We aimed to evaluate stem position, implant stability, clinical results, and radiological changes after THAs using this technique. Methods Fifteen patients (17 hips; 11 varus hips and 6 valgus hips) underwent cementless THA using the trochanteric osteotomy technique in one institution. We evaluated procedure-specific complications intraoperative femoral fracture, stem malposition, weakness of the abductor power and limp. Modified Harris Hip Score, radiological changes, and the stability of stems were assessed at a mean of 7.1 years of follow-up (range 2.0-15.5). Results Femoral fracture occurred during the insertion of the stem in 4 hips. All stems were aligned in neutral position. https://www.selleckchem.com/products/CX-3543.html At the latest follow-up, the mean power of the abductor was 4.3 (range 3-5). Eleven patients had slight limp and 4 patients had moderate limp. All stems had bone-ingrown stability and no stem was revised. The mean modified Harris Hip Score improved from 50 points at the preoperative evaluation to 81 points at the final follow-up. Conclusion The trochanteric excision enabled neutral insertion of cementless stem in patients with varus/valgus deformity of the proximal femur, and THA using this technique rendered favorable results.Background During revision total hip arthroplasty (THA), the "double-socket" technique has been proposed as a straightforward solution in order to reduce the overall perioperative morbidity in patients with high surgical risk. However, the option of cementing a dual mobility cup into an existing well-fixed metal shell was sparsely reported. Therefore, this study aimed to evaluate the outcome of a "double-socket" technique performed with a cemented dual mobility cup in revision THA for late instability. Methods Twenty-eight revision THAs (28 patients) were performed for wear-related recurrent dislocation using a "double-socket" technique with a cemented dual mobility cup and retrospectively reviewed. The age at revision averaged 82 years (range 74-93). According to the American Society of Anesthesiologists (ASA) physical status classification, 12 patients (43%) were ASA II and 16 patients (57%) were ASA III before revision. Results At a mean follow-up of 3.5 years (range 2-5), the mean preoperative to postoperative functional outcome improved significantly (P less then .01). The mean operative time was 107 minutes (range 75-140). The mean intraoperative bleeding was 200 mL (range 110-420). No postoperative complication, reoperation, or re-revision was reported. Importantly, no dislocation, dissociation of the cemented dual mobility cup construct, or aseptic loosening of the retained metal shell was observed. Conclusion The "double-socket" technique with a dual mobility cup cemented into an existing well-fixed and well-positioned metal shell ensured a straightforward and blood-sparing revision technique that was efficient to restore stability and provide a secure acetabular construct in frail patients with high surgical risk and/or older than their natural life expectancy.The aim of this study was to compare the efficacy and safety of the different local anaesthetic agents for the extraction of impacted lower third molars. A network meta-analysis was performed of all published reports of randomized controlled clinical trials assessing efficacy (anaesthetic success and absence of need for supplementary anaesthesia during the surgical procedure) and/or safety (number of adverse events) of anaesthetic agents. Three electronic databases were searched, from their earliest records up to April 2019. Additionally, the grey literature was searched to identify further potential candidates for inclusion. Anaesthesia had to be delivered by an inferior alveolar nerve block, complemented with infiltration anaesthesia of the buccal nerve. The quality of the studies was assessed using the Cochrane Collaboration tool. This study included a total of 21 trials (2021 molars) assessing the efficacy and 19 trials (1977 molars) assessing the safety of 11 anaesthetic solutions. Seven of the studies included were considered to have a high risk of bias.
The latex and antiseptic groups showed increases of myeloperoxidase levels on the 2nd day and showed important reductions from the 7th day. Study limitations Acute superficial wound model in rats and non-use of gel-cream (medium) without latex. Conclusion In conclusion, non-toxic latex stimulated migration/proliferation of keratinocytes in vitro and significantly accelerated wound healing in animal excoriation models compared to chlorhexidine or saline.Chromoblastomycosis is a subcutaneous mycosis with chronic evolution that mainly affects the lower limbs and, less frequently, the auricles. Clinically, it presents with papillary verrucous, nodular, and/or tumoral lesions, whether isolated or infiltrated, forming plaques and, sometimes, atrophic in some areas. Histopathologically, it is characterized by a dermal granulomatous inflammatory infiltrate, and the diagnosis can be confirmed by the presence of fumagoid bodies in anatomopathological or direct mycological exams. The treatment to be indicated will depend on the extent and location of the lesions, using systemic antifungals, surgical removal, cryotherapy, thermotherapy, and immunoadjuvants. The present study reports an atypical presentation of chromoblastomycosis on the auricle.Background Regional differences in the profile and treatment strategies of patients with cardiometabolic diseases have been studied in several different countries. The Cardio-Vascular and metabolic treatments in Canada Assessment of REal-life therapeutic value (CV-CARE) registry was designed to evaluate patient profiles and medical management of cardiometabolic diseases in routine clinical care settings across Canada. Primary objectives were to (1) evaluate regional variability of patient profiles with cardiometabolic disease(s) and (2) assess treatment differences of patients treated for type 2 diabetes (T2D), hypercholesterolemia (HCh), and hypertension (HTN) across Canada. Methods CV-CARE is a multi-center, observational, prospective registry that enrolled Canadian patients treated with metformin-extended release (MetER) for T2D, colesevelam (C) for HCh, azilsartan (AZI) for mild-to-moderate essential HTN and azilsartan/chlorthalidone (AZI/CHL) for severe, essential HTN. Patient characteristics and treatmes in both baseline profile and treatments were observed which could have an impact on long-term outcomes.Background Total hip arthroplasty (THA) of patients with a proximal femoral deformity is technically demanding. This deformity poses the risk of femoral fracture or perforation; stem malposition; and failed stem fixation. To insert a femoral stem in neutral position with a good fit, we removed the greater trochanter in case of a varus deformity, and the lesser trochanter in case of valgus deformity, while performing THA. We aimed to evaluate stem position, implant stability, clinical results, and radiological changes after THAs using this technique. Methods Fifteen patients (17 hips; 11 varus hips and 6 valgus hips) underwent cementless THA using the trochanteric osteotomy technique in one institution. We evaluated procedure-specific complications intraoperative femoral fracture, stem malposition, weakness of the abductor power and limp. Modified Harris Hip Score, radiological changes, and the stability of stems were assessed at a mean of 7.1 years of follow-up (range 2.0-15.5). Results Femoral fracture occurred during the insertion of the stem in 4 hips. All stems were aligned in neutral position. https://www.selleckchem.com/products/CX-3543.html At the latest follow-up, the mean power of the abductor was 4.3 (range 3-5). Eleven patients had slight limp and 4 patients had moderate limp. All stems had bone-ingrown stability and no stem was revised. The mean modified Harris Hip Score improved from 50 points at the preoperative evaluation to 81 points at the final follow-up. Conclusion The trochanteric excision enabled neutral insertion of cementless stem in patients with varus/valgus deformity of the proximal femur, and THA using this technique rendered favorable results.Background During revision total hip arthroplasty (THA), the "double-socket" technique has been proposed as a straightforward solution in order to reduce the overall perioperative morbidity in patients with high surgical risk. However, the option of cementing a dual mobility cup into an existing well-fixed metal shell was sparsely reported. Therefore, this study aimed to evaluate the outcome of a "double-socket" technique performed with a cemented dual mobility cup in revision THA for late instability. Methods Twenty-eight revision THAs (28 patients) were performed for wear-related recurrent dislocation using a "double-socket" technique with a cemented dual mobility cup and retrospectively reviewed. The age at revision averaged 82 years (range 74-93). According to the American Society of Anesthesiologists (ASA) physical status classification, 12 patients (43%) were ASA II and 16 patients (57%) were ASA III before revision. Results At a mean follow-up of 3.5 years (range 2-5), the mean preoperative to postoperative functional outcome improved significantly (P less then .01). The mean operative time was 107 minutes (range 75-140). The mean intraoperative bleeding was 200 mL (range 110-420). No postoperative complication, reoperation, or re-revision was reported. Importantly, no dislocation, dissociation of the cemented dual mobility cup construct, or aseptic loosening of the retained metal shell was observed. Conclusion The "double-socket" technique with a dual mobility cup cemented into an existing well-fixed and well-positioned metal shell ensured a straightforward and blood-sparing revision technique that was efficient to restore stability and provide a secure acetabular construct in frail patients with high surgical risk and/or older than their natural life expectancy.The aim of this study was to compare the efficacy and safety of the different local anaesthetic agents for the extraction of impacted lower third molars. A network meta-analysis was performed of all published reports of randomized controlled clinical trials assessing efficacy (anaesthetic success and absence of need for supplementary anaesthesia during the surgical procedure) and/or safety (number of adverse events) of anaesthetic agents. Three electronic databases were searched, from their earliest records up to April 2019. Additionally, the grey literature was searched to identify further potential candidates for inclusion. Anaesthesia had to be delivered by an inferior alveolar nerve block, complemented with infiltration anaesthesia of the buccal nerve. The quality of the studies was assessed using the Cochrane Collaboration tool. This study included a total of 21 trials (2021 molars) assessing the efficacy and 19 trials (1977 molars) assessing the safety of 11 anaesthetic solutions. Seven of the studies included were considered to have a high risk of bias.0 Commenti 0 condivisioni 15 Views 0 Anteprima
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