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A marker for distinguishing patients with obsessive-compulsive disorder (OCD) spectrum has not yet been identified. Whole-brain resting-state effective and functional connectivity (rsEC and rsFC, respectively) networks were constructed for 50 unmedicated OCD (U-OCD) patients, 45 OCD patients in clinical remission (COCD), 47 treatment-resistant OCD (T-OCD) patients, 42 chronic schizophrenia patients who exhibit OCD symptoms (SCHOCD), and 50 healthy controls (HCs). Multivariate pattern analysis (MVPA) was performed to investigate the accuracy of using connectivity alterations to distinguished among the aforementioned groups. Compared to HCs, rsEC connections were significantly disrupted in the U-OCD (n = 15), COCD (n = 8), and T-OCD (n = 19) groups. Additionally, 21 rsEC connections were significantly disrupted in the T-OCD group compared to the SCHOCD group. The disrupted rsEC networks were associated mainly with the frontal-parietal cortex, basal ganglia, limbic regions, and the cerebellum. Classification accuracies for distinguishing OCD patients from HCs and SCHOCD patients ranged from 66.6% to 98.0%. In conclusion, disrupted communication from the frontal-parietal cortices to subcortical basal nuclei and the cerebellum may represent a functional pathological feature of the OCD spectrum. MVPA based on both abnormal rsEC and rsFC patterns may aid in early differential diagnosis of OCD.Nowadays, organic solar cells (OSCs) with non-fullerene electron acceptors provide the highest efficiencies among all studied OSCs. To further improve the efficiencies of fullerene-free organic solar cells, end-capped acceptor modification is made with strong electron withdrawing groups. In this report, we have theoretically designed five new novel Benzodithiophene core-based acceptor molecules (H1-H5) with the aim to study the possible enhancement in photophysical, optoelectronic, and photovoltaic properties of newly designed molecules. The end-capped acceptor modification of famous and recently synthesized FBDIC molecule has been made with strong electron withdrawing groups. Density functional theory and time-dependent-density functional theory are extensively used to study the structural-property relationship, optical properties and various geometrical parameters like frontier molecular orbitals alignment, excitation and binding energy, transition density matrix along with open circuit voltage, density of states and dipole moment. Commonly, low reorganization energies (hole and electron) afford high charge mobility and our all designed systems are enriched in aspect (λe = 0.0044-0.0104 eV and λh = 0.0060-0.0090 eV). Moreover, H1-H5 molecules demonstrate red-shifting in absorption spectrum (λmax = 741-812 nm) as compare to R (λmax = 728 nm). Low excitation and binding energies with low HOMO (highest occupied molecular orbital)-LUMO (lowest unoccupied molecular orbital) energy gap of H1-H5 suggested that designed molecules are better and suitable candidates for high performance organic solar cell. Results of all analysis indicate that this theoretical framework demonstrates that end-capped acceptors modification is a simple and effective alternative strategy to achieve the desirable optoelectronic properties. Therefore, H1-H5 are recommended to experimentalist for out-looking future developments of highly efficient solar cells.The spores of Bacillus anthracis are highly deadly to human beings and animals, and are concurrently potential biological warfare agents. Hence, the rapid and sensitive monitoring Bacillus anthracis biomarker, dipicolinic acid (DPA), is very desirable. Herein, orange/green dual-emissive carbon dots (OG-CDs) were synthesized via the hydrothermal approach. The OG-CDs not only emitted dual fluorescence at 527 and 590 nm under the single 503 nm excitation, but also exhibited excellent water solubility, good photostability and great salt tolerance. The fluorescence of the OG-CDs at 527 nm can be completely quenched when chelated with Cu(II). However, because of the stronger chelation between DPA and Cu(II), the fluorescence restored rapidly on subsequent addition of DPA. As such, the CD-Cu(II) system can be used for determination of DPA based on the fluorescence "off-on" response. Under optimum conditions, the detection limit for DPA was 56 nM, with a linear range of 0.5-12.5 μM. The established CD-Cu(II) based spectrofluorometric method has been applied to the analysis of DPA in real water samples with recoveries of 93.6%-104.3%. More remarkably, the CD-Cu(II) probe also has been successfully applied for the imaging of DPA in Escherichia coli with excellent bio-compatibility.Lesinurad and allopurinol combination is newly FDA approved for treatment of patients suffering from hyperuricemia associated with uncontrolled gout. In the present work, two different highly sensitive, selective and accurate fluorescence spectroscopic methods were developed for quantitative analysis of lesinurad and allopurinol in their pharmaceutical dosage form without any tedious operation procedure. Lesinurad was quantitatively analyzed based on its unique native fluorescence nature. Lesinurad fluorescence emission was quantitatively determined at 343 nm after excitation at 288 nm without any interference from allopurinol. Allopurinol, has free terminal secondary amino group, reacted with 4-chloro-7-nitrobenzo-2-oxa-1,3-diazole (NBDCl) through nucleophilic substitution mechanism forming highly fluorescent dark yellow fluorophore. Allopurinol was quantitavely analyzed based on measurement the emission fluorescence intensity of the fluorescent dark yellow fluorophore at 535 nm after excitation at 465 nm. Different parameters which affect the described methods of the studied drugs were carefully checked and optimized. Calibration graphs were found to be linear over the concentration range of 0.25-4.0 μg/mL for lesinurad and 0.2-20 μg/mL for allopurinol. https://www.selleckchem.com/products/m3541.html The proposed methods were successfully applied for the quantitative analysis of the two drugs in Duzallo® pharmaceutical dosage form and spiked human plasma.Recently nanocluster based drug delivery systems have become the most skillful to study. Interaction mechanism of duphaston (DPH) over graphene (G), carboxyl substituted graphene (COG) and doped COG-X (X = O/S/N/B) were investigated. We studied different spectroscopic properties of adsorbed DPH with nanoclusters. To study effect adsorption of DPH with nanoclusters, the adsorption energies were measured. To track DPH, surface enhanced Raman scattering is used since it is an efficient approach to vibrational spectroscopy. The DPH detection was investigated using GQDs SERS property. For the adsorption of DPH with COG-B nanocluster maximum energy interaction is determined. DPH works on the electrophilic site of nanoclusters as donor of electrons and adsorbs. Charge transfer is higher for to COG-B nanocluster than for other nanoclusters. Variations in chemical descriptors are also noted to understand sensing property of DPH molecule-nanoclusters. The analysis of different properties demonstrates enhancement effect which makes it significant in detecting DPH in other products.
A marker for distinguishing patients with obsessive-compulsive disorder (OCD) spectrum has not yet been identified. Whole-brain resting-state effective and functional connectivity (rsEC and rsFC, respectively) networks were constructed for 50 unmedicated OCD (U-OCD) patients, 45 OCD patients in clinical remission (COCD), 47 treatment-resistant OCD (T-OCD) patients, 42 chronic schizophrenia patients who exhibit OCD symptoms (SCHOCD), and 50 healthy controls (HCs). Multivariate pattern analysis (MVPA) was performed to investigate the accuracy of using connectivity alterations to distinguished among the aforementioned groups. Compared to HCs, rsEC connections were significantly disrupted in the U-OCD (n = 15), COCD (n = 8), and T-OCD (n = 19) groups. Additionally, 21 rsEC connections were significantly disrupted in the T-OCD group compared to the SCHOCD group. The disrupted rsEC networks were associated mainly with the frontal-parietal cortex, basal ganglia, limbic regions, and the cerebellum. Classification accuracies for distinguishing OCD patients from HCs and SCHOCD patients ranged from 66.6% to 98.0%. In conclusion, disrupted communication from the frontal-parietal cortices to subcortical basal nuclei and the cerebellum may represent a functional pathological feature of the OCD spectrum. MVPA based on both abnormal rsEC and rsFC patterns may aid in early differential diagnosis of OCD.Nowadays, organic solar cells (OSCs) with non-fullerene electron acceptors provide the highest efficiencies among all studied OSCs. To further improve the efficiencies of fullerene-free organic solar cells, end-capped acceptor modification is made with strong electron withdrawing groups. In this report, we have theoretically designed five new novel Benzodithiophene core-based acceptor molecules (H1-H5) with the aim to study the possible enhancement in photophysical, optoelectronic, and photovoltaic properties of newly designed molecules. The end-capped acceptor modification of famous and recently synthesized FBDIC molecule has been made with strong electron withdrawing groups. Density functional theory and time-dependent-density functional theory are extensively used to study the structural-property relationship, optical properties and various geometrical parameters like frontier molecular orbitals alignment, excitation and binding energy, transition density matrix along with open circuit voltage, density of states and dipole moment. Commonly, low reorganization energies (hole and electron) afford high charge mobility and our all designed systems are enriched in aspect (λe = 0.0044-0.0104 eV and λh = 0.0060-0.0090 eV). Moreover, H1-H5 molecules demonstrate red-shifting in absorption spectrum (λmax = 741-812 nm) as compare to R (λmax = 728 nm). Low excitation and binding energies with low HOMO (highest occupied molecular orbital)-LUMO (lowest unoccupied molecular orbital) energy gap of H1-H5 suggested that designed molecules are better and suitable candidates for high performance organic solar cell. Results of all analysis indicate that this theoretical framework demonstrates that end-capped acceptors modification is a simple and effective alternative strategy to achieve the desirable optoelectronic properties. Therefore, H1-H5 are recommended to experimentalist for out-looking future developments of highly efficient solar cells.The spores of Bacillus anthracis are highly deadly to human beings and animals, and are concurrently potential biological warfare agents. Hence, the rapid and sensitive monitoring Bacillus anthracis biomarker, dipicolinic acid (DPA), is very desirable. Herein, orange/green dual-emissive carbon dots (OG-CDs) were synthesized via the hydrothermal approach. The OG-CDs not only emitted dual fluorescence at 527 and 590 nm under the single 503 nm excitation, but also exhibited excellent water solubility, good photostability and great salt tolerance. The fluorescence of the OG-CDs at 527 nm can be completely quenched when chelated with Cu(II). However, because of the stronger chelation between DPA and Cu(II), the fluorescence restored rapidly on subsequent addition of DPA. As such, the CD-Cu(II) system can be used for determination of DPA based on the fluorescence "off-on" response. Under optimum conditions, the detection limit for DPA was 56 nM, with a linear range of 0.5-12.5 μM. The established CD-Cu(II) based spectrofluorometric method has been applied to the analysis of DPA in real water samples with recoveries of 93.6%-104.3%. More remarkably, the CD-Cu(II) probe also has been successfully applied for the imaging of DPA in Escherichia coli with excellent bio-compatibility.Lesinurad and allopurinol combination is newly FDA approved for treatment of patients suffering from hyperuricemia associated with uncontrolled gout. In the present work, two different highly sensitive, selective and accurate fluorescence spectroscopic methods were developed for quantitative analysis of lesinurad and allopurinol in their pharmaceutical dosage form without any tedious operation procedure. Lesinurad was quantitatively analyzed based on its unique native fluorescence nature. Lesinurad fluorescence emission was quantitatively determined at 343 nm after excitation at 288 nm without any interference from allopurinol. Allopurinol, has free terminal secondary amino group, reacted with 4-chloro-7-nitrobenzo-2-oxa-1,3-diazole (NBDCl) through nucleophilic substitution mechanism forming highly fluorescent dark yellow fluorophore. Allopurinol was quantitavely analyzed based on measurement the emission fluorescence intensity of the fluorescent dark yellow fluorophore at 535 nm after excitation at 465 nm. Different parameters which affect the described methods of the studied drugs were carefully checked and optimized. Calibration graphs were found to be linear over the concentration range of 0.25-4.0 μg/mL for lesinurad and 0.2-20 μg/mL for allopurinol. https://www.selleckchem.com/products/m3541.html The proposed methods were successfully applied for the quantitative analysis of the two drugs in Duzallo® pharmaceutical dosage form and spiked human plasma.Recently nanocluster based drug delivery systems have become the most skillful to study. Interaction mechanism of duphaston (DPH) over graphene (G), carboxyl substituted graphene (COG) and doped COG-X (X = O/S/N/B) were investigated. We studied different spectroscopic properties of adsorbed DPH with nanoclusters. To study effect adsorption of DPH with nanoclusters, the adsorption energies were measured. To track DPH, surface enhanced Raman scattering is used since it is an efficient approach to vibrational spectroscopy. The DPH detection was investigated using GQDs SERS property. For the adsorption of DPH with COG-B nanocluster maximum energy interaction is determined. DPH works on the electrophilic site of nanoclusters as donor of electrons and adsorbs. Charge transfer is higher for to COG-B nanocluster than for other nanoclusters. Variations in chemical descriptors are also noted to understand sensing property of DPH molecule-nanoclusters. The analysis of different properties demonstrates enhancement effect which makes it significant in detecting DPH in other products.0 Kommentare 0 Geteilt 141 Ansichten 0 BewertungenBitte loggen Sie sich ein, um liken, teilen und zu kommentieren! -
Understanding the structural dynamics of lead-halide perovskites is essential for their advanced use as photovoltaics. Here, the structural dynamics of the CH3NH3 cation and PbBr6 octahedra in the perovskite CH3NH3PbBr3 were studied via nuclear magnetic resonance (NMR) to determine the mechanism of the transition from the tetragonal to cubic phase. The chemical shifts were obtained by 1H, 13C, and 207Pb magic angle spinning NMR and 14N static NMR. The chemical shifts of the 1H nuclei in CH3 and NH3 remained constant with increasing temperature, whereas those of the 13C and 207Pb nuclei varied near the phase transition temperature (TC = 236 K), indicating that the structural environments of 13C and 207Pb change near TC. The spin-lattice relaxation time T1ρ values for 1H, 13C, and 207Pb nuclei increased with increasing temperature and did not exhibit an abrupt change near TC. In addition, the two lines in the 14N NMR spectra superposed into one line near TC, indicating the occurrence of a phase transition to a cubic phase with higher symmetry than tetragonal. Consequently, the main factor causing the phase transition from the tetragonal to cubic phase near TC is a change in the surroundings of the 207Pb nuclei in the PbBr6 octahedra and of the C-N groups in the CH3NH3 cations.An amendment to this paper has been published and can be accessed via a link at the top of the paper.MicroRNA (miRNA) is involved in the physiological and pathological processes of various malignancies. In this study, miRNA microarray analysis showed that miR-4634 levels in A549 cells increased significantly after everolimus (RAD001) treatment. Decreased expression of miR-4634 was also found in non-small-cell lung carcinoma (NSCLC) cell lines and patients' tumors by qPCR. Additionally, a combination of miR-4634 and RAD001 exerted synergistic antitumor efficacy by inhibiting cell proliferation, migration, and colony formation. High expression of miR-4634 was significantly more common in non-cancerous lung tissue than adenocarcinoma or squamous cell carcinoma tissue (72.8%, 45.7%, and 50.9%, respectively; P less then 0.001). Furthermore, high expression of miR-4634 was found to be more frequent in patients without lymph node metastasis (P = 0.037) by in-situ hybridization. Importantly, through univariate and multivariate analysis, high miR-4634 expression was associated with better prognosis of NSCLC patients. In conclusion, miR-4634 may act as a tumor suppressor in NSCLC, and to augment the efficacy of RAD001, co-treatment of miR-4634 and RAD001 might be a potential mTOR-targeted cancer therapy strategy for NSCLC patients. High expression of miR-4634 could be an independent good prognostic biomarker for NSCLC.Different cellular mechanisms have been described as being potentially involved in the progression of neurodegeneration in Parkinson's disease, although their role is still unclear. The present study aimed to identify in detail, through differentially expressed genes analysis by bioinformatics approaches, the molecular mechanisms triggered after a systemic insult in parkinsonian ****. To address this objective, we combined a dextran sodium sulfate (DSS)-induced ulcerative colitis experimental **** model with an acute 1-methyl-4-phenyl-1,2,3,6-tetradropyridine (MPTP) intoxication. The animals were divided into four experimental groups based on the different treatments (i) control, (ii) DSS, (iii) MPTP and (iv) MPTP + DSS. https://www.selleckchem.com/products/AG14361.html The data obtained by microarray and functional enrichment analysis point out the implication of different molecular mechanisms depending on the experimental condition. We see, in the striatum of animals intoxicated only with DSS, dysfunction processes related to the blood. On the other hand, oxidative stress processes are more prominent at the MPTP intoxicated ****. Finally, differentially expressed genes within the MPTP + DSS show functional enrichment in inflammation and programmed cell death. Interestingly, we identify a significant synergistic negative effect of both toxins since the expression of differentially expressed genes (DEGs) related to balanced cellular homeostasis was not enough to prevent processes associated with cell death. This work provides detailed insights into the involvement of systemic inflammation, triggered after an insult in the colon, in the progression of the degeneration in Parkinsonism. In this way, we will be able to identify promising therapeutic targets that prevent the contribution of inflammatory processes in the progression of Parkinson's disease.Although many studies investigated the associations between single-nucleotide polymorphisms (SNPs) in the M-type phospholipase A2 receptor-1 (PLA2R1) gene and susceptibility to idiopathic membranous nephropathy (IMN), some showed inconsistent results. Here, we conducted a meta-analysis examining the associations between PLA2R1 SNPs and IMN susceptibility after systematic searches in the PubMed and Web of Science databases. Our meta-analysis for rs4664308 A>G including 2,542 IMN patients and 4,396 controls in seven studies showed a significant association between the G allele and a lower risk of IMN, as determined using an allelic model (odds ratio, 0.45; 95% confidence interval [0.41-0.50]), an additive model (for GG vs. AA 0.26; [0.21-0.33]; for AG vs. AA 0.40; [0.36-0.45]), a dominant model (0.37; [0.34-0.42]) and a recessive model (0.38; [0.31-0.48]). Our meta-analysis also suggested associations between rs3828323, rs35771982, rs3749117 and rs3749119 and IMN susceptibility although high heterogeneities and/or publication biases were observed. We did not study in our meta-analysis, but other studies indicated that high-risk genotype combinations of rs2187668 in the human leucocyte antigen-DQ a-chain 1 gene and rs4664308 in the PLA2R1 gene had even stronger associations and could affect the formation of anti-PLA2R1 antibodies, suggesting these SNPs could be novel therapeutic targets.Toxoplasmic encephalitis is an AIDS-defining condition. The decline of IFN-γ-producing CD4+ T cells in AIDS is a major contributing factor in reactivation of quiescent Toxoplasma gondii to an actively replicating stage of infection. Hence, it is important to characterize CD4-independent mechanisms that constrain acute T. gondii infection. We investigated the in vivo regulation of IFN-γ production by CD8+ T cells, DN T cells and NK cells in response to acute T. gondii infection. Our data show that processing of IFN-γ by these non-CD4 cells is dependent on both IL-12 and IL-18 and the secretion of bioactive IL-18 in response to T. gondii requires the sensing of viable parasites by multiple redundant inflammasome sensors in multiple hematopoietic cell types. Importantly, our results show that expansion of CD8+ T cells, DN T cells and NK cell by S4B6 IL-2 complex pre-treatment increases survival rates of **** infected with T. gondii and this is dependent on IL-12, IL-18 and IFN-γ. Increased survival is accompanied by reduced pathology but is independent of expansion of TReg cells or parasite burden.
Understanding the structural dynamics of lead-halide perovskites is essential for their advanced use as photovoltaics. Here, the structural dynamics of the CH3NH3 cation and PbBr6 octahedra in the perovskite CH3NH3PbBr3 were studied via nuclear magnetic resonance (NMR) to determine the mechanism of the transition from the tetragonal to cubic phase. The chemical shifts were obtained by 1H, 13C, and 207Pb magic angle spinning NMR and 14N static NMR. The chemical shifts of the 1H nuclei in CH3 and NH3 remained constant with increasing temperature, whereas those of the 13C and 207Pb nuclei varied near the phase transition temperature (TC = 236 K), indicating that the structural environments of 13C and 207Pb change near TC. The spin-lattice relaxation time T1ρ values for 1H, 13C, and 207Pb nuclei increased with increasing temperature and did not exhibit an abrupt change near TC. In addition, the two lines in the 14N NMR spectra superposed into one line near TC, indicating the occurrence of a phase transition to a cubic phase with higher symmetry than tetragonal. Consequently, the main factor causing the phase transition from the tetragonal to cubic phase near TC is a change in the surroundings of the 207Pb nuclei in the PbBr6 octahedra and of the C-N groups in the CH3NH3 cations.An amendment to this paper has been published and can be accessed via a link at the top of the paper.MicroRNA (miRNA) is involved in the physiological and pathological processes of various malignancies. In this study, miRNA microarray analysis showed that miR-4634 levels in A549 cells increased significantly after everolimus (RAD001) treatment. Decreased expression of miR-4634 was also found in non-small-cell lung carcinoma (NSCLC) cell lines and patients' tumors by qPCR. Additionally, a combination of miR-4634 and RAD001 exerted synergistic antitumor efficacy by inhibiting cell proliferation, migration, and colony formation. High expression of miR-4634 was significantly more common in non-cancerous lung tissue than adenocarcinoma or squamous cell carcinoma tissue (72.8%, 45.7%, and 50.9%, respectively; P less then 0.001). Furthermore, high expression of miR-4634 was found to be more frequent in patients without lymph node metastasis (P = 0.037) by in-situ hybridization. Importantly, through univariate and multivariate analysis, high miR-4634 expression was associated with better prognosis of NSCLC patients. In conclusion, miR-4634 may act as a tumor suppressor in NSCLC, and to augment the efficacy of RAD001, co-treatment of miR-4634 and RAD001 might be a potential mTOR-targeted cancer therapy strategy for NSCLC patients. High expression of miR-4634 could be an independent good prognostic biomarker for NSCLC.Different cellular mechanisms have been described as being potentially involved in the progression of neurodegeneration in Parkinson's disease, although their role is still unclear. The present study aimed to identify in detail, through differentially expressed genes analysis by bioinformatics approaches, the molecular mechanisms triggered after a systemic insult in parkinsonian mice. To address this objective, we combined a dextran sodium sulfate (DSS)-induced ulcerative colitis experimental mice model with an acute 1-methyl-4-phenyl-1,2,3,6-tetradropyridine (MPTP) intoxication. The animals were divided into four experimental groups based on the different treatments (i) control, (ii) DSS, (iii) MPTP and (iv) MPTP + DSS. https://www.selleckchem.com/products/AG14361.html The data obtained by microarray and functional enrichment analysis point out the implication of different molecular mechanisms depending on the experimental condition. We see, in the striatum of animals intoxicated only with DSS, dysfunction processes related to the blood. On the other hand, oxidative stress processes are more prominent at the MPTP intoxicated mice. Finally, differentially expressed genes within the MPTP + DSS show functional enrichment in inflammation and programmed cell death. Interestingly, we identify a significant synergistic negative effect of both toxins since the expression of differentially expressed genes (DEGs) related to balanced cellular homeostasis was not enough to prevent processes associated with cell death. This work provides detailed insights into the involvement of systemic inflammation, triggered after an insult in the colon, in the progression of the degeneration in Parkinsonism. In this way, we will be able to identify promising therapeutic targets that prevent the contribution of inflammatory processes in the progression of Parkinson's disease.Although many studies investigated the associations between single-nucleotide polymorphisms (SNPs) in the M-type phospholipase A2 receptor-1 (PLA2R1) gene and susceptibility to idiopathic membranous nephropathy (IMN), some showed inconsistent results. Here, we conducted a meta-analysis examining the associations between PLA2R1 SNPs and IMN susceptibility after systematic searches in the PubMed and Web of Science databases. Our meta-analysis for rs4664308 A>G including 2,542 IMN patients and 4,396 controls in seven studies showed a significant association between the G allele and a lower risk of IMN, as determined using an allelic model (odds ratio, 0.45; 95% confidence interval [0.41-0.50]), an additive model (for GG vs. AA 0.26; [0.21-0.33]; for AG vs. AA 0.40; [0.36-0.45]), a dominant model (0.37; [0.34-0.42]) and a recessive model (0.38; [0.31-0.48]). Our meta-analysis also suggested associations between rs3828323, rs35771982, rs3749117 and rs3749119 and IMN susceptibility although high heterogeneities and/or publication biases were observed. We did not study in our meta-analysis, but other studies indicated that high-risk genotype combinations of rs2187668 in the human leucocyte antigen-DQ a-chain 1 gene and rs4664308 in the PLA2R1 gene had even stronger associations and could affect the formation of anti-PLA2R1 antibodies, suggesting these SNPs could be novel therapeutic targets.Toxoplasmic encephalitis is an AIDS-defining condition. The decline of IFN-γ-producing CD4+ T cells in AIDS is a major contributing factor in reactivation of quiescent Toxoplasma gondii to an actively replicating stage of infection. Hence, it is important to characterize CD4-independent mechanisms that constrain acute T. gondii infection. We investigated the in vivo regulation of IFN-γ production by CD8+ T cells, DN T cells and NK cells in response to acute T. gondii infection. Our data show that processing of IFN-γ by these non-CD4 cells is dependent on both IL-12 and IL-18 and the secretion of bioactive IL-18 in response to T. gondii requires the sensing of viable parasites by multiple redundant inflammasome sensors in multiple hematopoietic cell types. Importantly, our results show that expansion of CD8+ T cells, DN T cells and NK cell by S4B6 IL-2 complex pre-treatment increases survival rates of mice infected with T. gondii and this is dependent on IL-12, IL-18 and IFN-γ. Increased survival is accompanied by reduced pathology but is independent of expansion of TReg cells or parasite burden.0 Kommentare 0 Geteilt 106 Ansichten 0 Bewertungen -
ere is a close relationship between dementia and malnutrition. Clinical approaches to minimize malnutrition in persons with dementia should include regular screening for malnutrition and its risk factors, avoidance of dietary restrictions, and support of persons at risk for malnutrition with oral nutritional supplements. Moreover, the influence of nutritional status varies in different types of dementia. Nutritional status may be worse in DLB and VaD compared with other types of dementia, whereas nutritional status in FTD is less.
Physical activity is associated with improvement in overall health and well-being, but robust evidence with comprehensive assessment of general health is lacking. This study aimed to clarify the effects of physical activity on intrinsic capacity among community-dwelling older adults with subjective memory concerns.
A single-blind randomized controlled trial compared aerobic training (AT), resistance training (RT), and combined training (AT+RT) programs for improving general health evaluated by intrinsic capacity.
Toyota, Japan.
Residents (65-85years old) who screened positive for subjective memory concerns using the Kihon checklist were invited for eligibility assessment. In total, 415 community-dwelling older adults were enrolled and randomized into the AT, RT, AT+RT, and control groups.
Participants in the intervention groups underwent a group training program and self-paced home training for 26weeks. The control group received lectures about health promotion. Intrinsic capacity (IC), constructed s.
Twenty-six-week AT with self-paced home training and RT with self-paced home training improve IC among community-dwelling older adults with subjective memory concerns, but the benefits waned subsequently. It will be required to develop optimal interventions that have a continuous beneficial effect on IC among community-dwelling older adults.
To examine the incremental value of sarcopenia components, following the diagnosis algorithm of the Asian consensus, on predicting adverse outcomes.
A prospective cohort study.
Four thousand community-dwelling Chinese adults (2000 men) aged 65years or older in Hong Kong (mean age=72.5 ± 5.2).
SARC-F was used as the initial predictor of 9 adverse outcomes. In step 2, muscle strength (ie, grip strength) and/or functions (ie, chair-stand, walking speed) were added on top of SARC-F. In step 3, height-, weight-, and body mass index-adjusted appendicular skeletal mass (ASM) measured by dual-energy x-ray absorptiometry (DXA) were added separately to all models formulated in step 2. The areas under the receiver operating characteristic curve (AUCs) were calculated for the models formulated in all steps. Each cumulative AUC would be compared with the AUC yielded in the previous step to evaluate the incremental prediction value.
On top of SARC-F, assessing grip strength, walking speed, or 5-time chair-stand sn provides additional power to predict adverse outcomes on top of SARC-F. Further assessment of muscle mass with DXA provides no extra constructive value ito bettering the prediction regardless of the adjustment parameters. Alternative technologies to measure muscle mass might be required.
To examine the factors of advance directive (AD) completion among older Chinese Americans.
Cross-sectional survey.
Data came from 435 Chinese Americans aged 55years and older living in 2 metropolitan areas through self-administered questionnaires and research assistant-administered interviews in 2018. Participants' average age was 75years (standard deviation=9.4).
Logistic regression was used to examine factors associated with AD completion.
Approximately 14% of participants completed an AD. Older age [odds ratio (OR) 1.07, 95% confidence interval (CI) 1.02-1.12], higher level of acculturation (OR 2.15, 95% CI 1.39-3.33), higher expectation for intergenerational support (OR 1.52, 95% CI 1.02-2.27), and having US citizenship (OR 3.02, 95% CI 1.26-7.23) were positively associated with AD completion. Physical and mental health needs were not significantly associated with AD completion.
This study is among the first focusing on AD completion among Chinese Americans, one of the fastest-growing older minority populations in the United States. Findings highlight the influence of socioeconomic and cultural factors on AD completion and illustrate the importance of developing culturally sensitive interventions to promote end-of-life care decision making among older Chinese Americans.
This study is among the first focusing on AD completion among Chinese Americans, one of the fastest-growing older minority populations in the United States. Findings highlight the influence of socioeconomic and cultural factors on AD completion and illustrate the importance of developing culturally sensitive interventions to promote end-of-life care decision making among older Chinese Americans.
To study the association between antipsychotic drug treatment and hip fracture, before and after the initiation of treatment.
Nationwide cohort study.
In this study based on several Swedish registers, all individuals age ≥65years who filled prescriptions for antipsychotic drugs in 2007-2017 were matched 11 by sex and age with controls, resulting in a cohort of 255,274 individuals.
Associations between antipsychotic drug treatment and hip fracture were investigated using multivariable conditional logistic regression models and flexible parametric survival models for nonproportional hazards, starting 1year before the first prescription was filled and extending to 1year thereafter.
The studied cohort had a mean age of 81.5 (standard deviation, 8.1) years; 152,890 (59.9%) individuals were women. Antipsychotic drug use was associated with an increased risk of hip fracture in all studied time frames, before and after the initiation of treatment. https://www.selleckchem.com/products/epz020411.html The risk was highest 16-30days before the initiation of treatment (odds ratio 9.09; 95% confidence interval 7.00-11.81). The pattern was consistent in subgroup analyses of users of conventional and atypical antipsychotics, men and women, as well as in younger old and older old participants. The association with hip fracture was not influenced by antipsychotic drug dose.
The association between antipsychotic drug use and the risk of hip fracture was observed before the initiation of antipsychotic treatment. This finding suggests that factors other than exposure to antipsychotic drugs are responsible for the increased risk of hip fracture in the treatment group.
The association between antipsychotic drug use and the risk of hip fracture was observed before the initiation of antipsychotic treatment. This finding suggests that factors other than exposure to antipsychotic drugs are responsible for the increased risk of hip fracture in the treatment group.
ere is a close relationship between dementia and malnutrition. Clinical approaches to minimize malnutrition in persons with dementia should include regular screening for malnutrition and its risk factors, avoidance of dietary restrictions, and support of persons at risk for malnutrition with oral nutritional supplements. Moreover, the influence of nutritional status varies in different types of dementia. Nutritional status may be worse in DLB and VaD compared with other types of dementia, whereas nutritional status in FTD is less. Physical activity is associated with improvement in overall health and well-being, but robust evidence with comprehensive assessment of general health is lacking. This study aimed to clarify the effects of physical activity on intrinsic capacity among community-dwelling older adults with subjective memory concerns. A single-blind randomized controlled trial compared aerobic training (AT), resistance training (RT), and combined training (AT+RT) programs for improving general health evaluated by intrinsic capacity. Toyota, Japan. Residents (65-85years old) who screened positive for subjective memory concerns using the Kihon checklist were invited for eligibility assessment. In total, 415 community-dwelling older adults were enrolled and randomized into the AT, RT, AT+RT, and control groups. Participants in the intervention groups underwent a group training program and self-paced home training for 26weeks. The control group received lectures about health promotion. Intrinsic capacity (IC), constructed s. Twenty-six-week AT with self-paced home training and RT with self-paced home training improve IC among community-dwelling older adults with subjective memory concerns, but the benefits waned subsequently. It will be required to develop optimal interventions that have a continuous beneficial effect on IC among community-dwelling older adults. To examine the incremental value of sarcopenia components, following the diagnosis algorithm of the Asian consensus, on predicting adverse outcomes. A prospective cohort study. Four thousand community-dwelling Chinese adults (2000 men) aged 65years or older in Hong Kong (mean age=72.5 ± 5.2). SARC-F was used as the initial predictor of 9 adverse outcomes. In step 2, muscle strength (ie, grip strength) and/or functions (ie, chair-stand, walking speed) were added on top of SARC-F. In step 3, height-, weight-, and body mass index-adjusted appendicular skeletal mass (ASM) measured by dual-energy x-ray absorptiometry (DXA) were added separately to all models formulated in step 2. The areas under the receiver operating characteristic curve (AUCs) were calculated for the models formulated in all steps. Each cumulative AUC would be compared with the AUC yielded in the previous step to evaluate the incremental prediction value. On top of SARC-F, assessing grip strength, walking speed, or 5-time chair-stand sn provides additional power to predict adverse outcomes on top of SARC-F. Further assessment of muscle mass with DXA provides no extra constructive value ito bettering the prediction regardless of the adjustment parameters. Alternative technologies to measure muscle mass might be required. To examine the factors of advance directive (AD) completion among older Chinese Americans. Cross-sectional survey. Data came from 435 Chinese Americans aged 55years and older living in 2 metropolitan areas through self-administered questionnaires and research assistant-administered interviews in 2018. Participants' average age was 75years (standard deviation=9.4). Logistic regression was used to examine factors associated with AD completion. Approximately 14% of participants completed an AD. Older age [odds ratio (OR) 1.07, 95% confidence interval (CI) 1.02-1.12], higher level of acculturation (OR 2.15, 95% CI 1.39-3.33), higher expectation for intergenerational support (OR 1.52, 95% CI 1.02-2.27), and having US citizenship (OR 3.02, 95% CI 1.26-7.23) were positively associated with AD completion. Physical and mental health needs were not significantly associated with AD completion. This study is among the first focusing on AD completion among Chinese Americans, one of the fastest-growing older minority populations in the United States. Findings highlight the influence of socioeconomic and cultural factors on AD completion and illustrate the importance of developing culturally sensitive interventions to promote end-of-life care decision making among older Chinese Americans. This study is among the first focusing on AD completion among Chinese Americans, one of the fastest-growing older minority populations in the United States. Findings highlight the influence of socioeconomic and cultural factors on AD completion and illustrate the importance of developing culturally sensitive interventions to promote end-of-life care decision making among older Chinese Americans. To study the association between antipsychotic drug treatment and hip fracture, before and after the initiation of treatment. Nationwide cohort study. In this study based on several Swedish registers, all individuals age ≥65years who filled prescriptions for antipsychotic drugs in 2007-2017 were matched 11 by sex and age with controls, resulting in a cohort of 255,274 individuals. Associations between antipsychotic drug treatment and hip fracture were investigated using multivariable conditional logistic regression models and flexible parametric survival models for nonproportional hazards, starting 1year before the first prescription was filled and extending to 1year thereafter. The studied cohort had a mean age of 81.5 (standard deviation, 8.1) years; 152,890 (59.9%) individuals were women. Antipsychotic drug use was associated with an increased risk of hip fracture in all studied time frames, before and after the initiation of treatment. https://www.selleckchem.com/products/epz020411.html The risk was highest 16-30days before the initiation of treatment (odds ratio 9.09; 95% confidence interval 7.00-11.81). The pattern was consistent in subgroup analyses of users of conventional and atypical antipsychotics, men and women, as well as in younger old and older old participants. The association with hip fracture was not influenced by antipsychotic drug dose. The association between antipsychotic drug use and the risk of hip fracture was observed before the initiation of antipsychotic treatment. This finding suggests that factors other than exposure to antipsychotic drugs are responsible for the increased risk of hip fracture in the treatment group. The association between antipsychotic drug use and the risk of hip fracture was observed before the initiation of antipsychotic treatment. This finding suggests that factors other than exposure to antipsychotic drugs are responsible for the increased risk of hip fracture in the treatment group.0 Kommentare 0 Geteilt 129 Ansichten 0 Bewertungen -
CP concentrations in sediments were 9.1-16,000 ng/g dw (mean value 1000 ng/g dw) for SCCPs and 2.4-27,000 ng/g dw (mean value 4400 ng/g dw) for MCCPs. In the water column, CP concentrations were 7.4-470 ng/L for SCCPs (mean value 43 ng/L) and 4.0-120 ng/L for MCCPs (mean value 27 ng/L). CP concentrations in riverine sediments were among the highest worldwide. SCCPs accounted for 95% of CPs (sum of SCCPs and MCCPs) in the dissolved phase. Cities around the river basin were found to be important pollution sources for CPs. Long-chained and more chlorinated congeners with larger LogKow values might be more likely to be 'salted-out', and thus, will be sequestrated in sediments in the ETM, while those lighter congener groups with relatively high water solubility were prone to be transported by water flow to larger distances.Fine particulate matter (PM2.5) is closely related to the air quality and public health. Numerous models have been introduced to simulate the PM2.5 concentrations at large scale based on remote sensing and auxiliary data. However, the data precision provided by these models are inadequate for epidemiology and pollutant exposure studies at medium or small scale. The present study aims to calibrate PM2.5 concentrations at 1 km resolution scale across China during 2015-2018 based on monitoring station data and auxiliary data using a novel geographically and temporally weighted regression model (GTWR). The cross-validation (CV) method and the geographically weighted regression (GWR) model are conducted for validation and cross-comparison. Additionally, the spatial autocorrelation and slope analysis methods are implemented to detect the spatiotemporal dynamic of PM2.5 concentrations. A sample-based CV of the GTWR model demonstrates an acceptable precision with a coefficient of determination equal to 0.67, a root-mean-square error of 10.32 μg/m3, and a mean prediction error of-6.56 μg/m3. This result proves that the GTWR model can simulate PM2.5 concentrations at a higher spatial resolution and accuracy across China than some previous models. Besides, the heterogeneity and spatiotemporal dynamic of PM2.5 concentrations are obvious, that is, the High-High (H-H) agglomeration areas with strong haze pollution were mainly concentrated in Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), Chengdu-Chongqing (CY), and Guanzhong Plain (GZP). In addition, the PM2.5 concentrations are undergoing a decreasing trend in most of the study area, and the decrease in the BTH is dramatic. https://www.selleckchem.com/products/t0901317.html The results of the present study are helpful for calibrating and detecting the spatiotemporal dynamic of PM2.5 concentrations and useful for the government to make decisions about decreasing haze pollution in urban agglomeration scale.Land-use and climate changes have been repeatedly identified as important factors affecting terrestrial carbon budgets, however little is known about how deforestation and catchment development affect aquatic systems in carbonate-rich regions. Multi-proxy analyses of 210Pb-dated sediment cores from two hard-water lakes with different land-use histories were applied for assessing carbon cycling and limnological changes in response to land-use changes over the past century in southwest China. Logging of primary forests in the catchment of Lugu Lake, starting in the 1950s, led to a significant increase of catchment erosion, as well as a consistent decline in inferred lake-water total organic carbon (TOC) levels and sediment carbonate accumulation. This process of recent deforestation may significantly reduce the role of lake systems to act as carbon sinks through hampering of both the soil organic carbon flux and the dissolution of catchment carbonate. The decline in lake-water TOC in Lugu Lake further increased algal production (i.e. tracked through sediment trends in chlorophyll a and its main diagenetic products) and changes in diatom composition. In comparison, there was little variation of sediment carbonate content in Chenghai Lake, which has a long history of catchment deforestation, while both primary production and lake-water TOC increased following cultural eutrophication during the last three decades. Furthermore, regional warming was associated with an increase in small-sized diatoms in both deep lakes, likely due to enhanced thermal stability. This study highlights the significant role of vegetation cover and land use in driving aquatic carbon cycling and phototrophs, revealing that deforestation can strongly reduce both inorganic and organic carbon export to lakes and thus aquatic carbon storage in karst landscapes.The Yellow River Delta Nature Reserve (YNR), which includes two separated regions part of the old Yellow River Delta (OYD) and part of the current Yellow River Delta (CYD), was established to protect coastal wetlands in the coastal estuary. A total of 120 plots were sampled in the YNR in April 2016, and the spatial patterns of soil C, N and P contents and their stoichiometric ratios (CN (RCN), CP (RCP) and NP (RNP)) were studied and interpolated using the Ordinary Kriging method. Results indicated that the soil elemental contents and stoichiometric ratios showed high spatial heterogeneity and large variations. The mean CNP ratio (RCNP) was ~ 64.72.31 in OYD, and ~ 64.52.01 in CYD, respectively, and a well-constrained RCP ratio ~ 651 was found in the 0-50 cm soil depth within the YNR. N showed greater variation than C and P. Furthermore, N contents in the 0-5 cm soil layer of OYD were significantly higher than that of CYD (F = 4.79, p = 0.03); RCN in 0-5 cm, 5-10 cm layers of OYD was significantly lower than those in the same layers of CYD (F = 4.75, p = 0.03; F = 5.18, p = 0.02, respectively). RNP in 0-5 cm soil layer of OYD was notably higher than that of CYD (F = 4.88, p = 0.03). These results were due to the combined actions of sedimentation, reclamation and fertilization. Finally, we concluded that a longer reclamation and fertilization history led to decreased RCN in coastal estuary soils, confirmed that the soil of the YNR exhibits N limitation, and suggested that the soil RCN and RNP could be good indicators of the anthropogenic improvement status during soil development in this coastal estuary.
CP concentrations in sediments were 9.1-16,000 ng/g dw (mean value 1000 ng/g dw) for SCCPs and 2.4-27,000 ng/g dw (mean value 4400 ng/g dw) for MCCPs. In the water column, CP concentrations were 7.4-470 ng/L for SCCPs (mean value 43 ng/L) and 4.0-120 ng/L for MCCPs (mean value 27 ng/L). CP concentrations in riverine sediments were among the highest worldwide. SCCPs accounted for 95% of CPs (sum of SCCPs and MCCPs) in the dissolved phase. Cities around the river basin were found to be important pollution sources for CPs. Long-chained and more chlorinated congeners with larger LogKow values might be more likely to be 'salted-out', and thus, will be sequestrated in sediments in the ETM, while those lighter congener groups with relatively high water solubility were prone to be transported by water flow to larger distances.Fine particulate matter (PM2.5) is closely related to the air quality and public health. Numerous models have been introduced to simulate the PM2.5 concentrations at large scale based on remote sensing and auxiliary data. However, the data precision provided by these models are inadequate for epidemiology and pollutant exposure studies at medium or small scale. The present study aims to calibrate PM2.5 concentrations at 1 km resolution scale across China during 2015-2018 based on monitoring station data and auxiliary data using a novel geographically and temporally weighted regression model (GTWR). The cross-validation (CV) method and the geographically weighted regression (GWR) model are conducted for validation and cross-comparison. Additionally, the spatial autocorrelation and slope analysis methods are implemented to detect the spatiotemporal dynamic of PM2.5 concentrations. A sample-based CV of the GTWR model demonstrates an acceptable precision with a coefficient of determination equal to 0.67, a root-mean-square error of 10.32 μg/m3, and a mean prediction error of-6.56 μg/m3. This result proves that the GTWR model can simulate PM2.5 concentrations at a higher spatial resolution and accuracy across China than some previous models. Besides, the heterogeneity and spatiotemporal dynamic of PM2.5 concentrations are obvious, that is, the High-High (H-H) agglomeration areas with strong haze pollution were mainly concentrated in Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), Chengdu-Chongqing (CY), and Guanzhong Plain (GZP). In addition, the PM2.5 concentrations are undergoing a decreasing trend in most of the study area, and the decrease in the BTH is dramatic. https://www.selleckchem.com/products/t0901317.html The results of the present study are helpful for calibrating and detecting the spatiotemporal dynamic of PM2.5 concentrations and useful for the government to make decisions about decreasing haze pollution in urban agglomeration scale.Land-use and climate changes have been repeatedly identified as important factors affecting terrestrial carbon budgets, however little is known about how deforestation and catchment development affect aquatic systems in carbonate-rich regions. Multi-proxy analyses of 210Pb-dated sediment cores from two hard-water lakes with different land-use histories were applied for assessing carbon cycling and limnological changes in response to land-use changes over the past century in southwest China. Logging of primary forests in the catchment of Lugu Lake, starting in the 1950s, led to a significant increase of catchment erosion, as well as a consistent decline in inferred lake-water total organic carbon (TOC) levels and sediment carbonate accumulation. This process of recent deforestation may significantly reduce the role of lake systems to act as carbon sinks through hampering of both the soil organic carbon flux and the dissolution of catchment carbonate. The decline in lake-water TOC in Lugu Lake further increased algal production (i.e. tracked through sediment trends in chlorophyll a and its main diagenetic products) and changes in diatom composition. In comparison, there was little variation of sediment carbonate content in Chenghai Lake, which has a long history of catchment deforestation, while both primary production and lake-water TOC increased following cultural eutrophication during the last three decades. Furthermore, regional warming was associated with an increase in small-sized diatoms in both deep lakes, likely due to enhanced thermal stability. This study highlights the significant role of vegetation cover and land use in driving aquatic carbon cycling and phototrophs, revealing that deforestation can strongly reduce both inorganic and organic carbon export to lakes and thus aquatic carbon storage in karst landscapes.The Yellow River Delta Nature Reserve (YNR), which includes two separated regions part of the old Yellow River Delta (OYD) and part of the current Yellow River Delta (CYD), was established to protect coastal wetlands in the coastal estuary. A total of 120 plots were sampled in the YNR in April 2016, and the spatial patterns of soil C, N and P contents and their stoichiometric ratios (CN (RCN), CP (RCP) and NP (RNP)) were studied and interpolated using the Ordinary Kriging method. Results indicated that the soil elemental contents and stoichiometric ratios showed high spatial heterogeneity and large variations. The mean CNP ratio (RCNP) was ~ 64.72.31 in OYD, and ~ 64.52.01 in CYD, respectively, and a well-constrained RCP ratio ~ 651 was found in the 0-50 cm soil depth within the YNR. N showed greater variation than C and P. Furthermore, N contents in the 0-5 cm soil layer of OYD were significantly higher than that of CYD (F = 4.79, p = 0.03); RCN in 0-5 cm, 5-10 cm layers of OYD was significantly lower than those in the same layers of CYD (F = 4.75, p = 0.03; F = 5.18, p = 0.02, respectively). RNP in 0-5 cm soil layer of OYD was notably higher than that of CYD (F = 4.88, p = 0.03). These results were due to the combined actions of sedimentation, reclamation and fertilization. Finally, we concluded that a longer reclamation and fertilization history led to decreased RCN in coastal estuary soils, confirmed that the soil of the YNR exhibits N limitation, and suggested that the soil RCN and RNP could be good indicators of the anthropogenic improvement status during soil development in this coastal estuary.0 Kommentare 0 Geteilt 147 Ansichten 0 Bewertungen -
The degradation pathways of JHXJZ under the present indoor simulation conditions were proposed.Cryptococcal meningitis is a prevalent invasive fungal infection that causes around 180 000 deaths annually. Currently, treatment for cryptococcal meningitis is limited and new therapeutic options are needed. Historically, medicinal plants are used to treat infectious and inflammatory skin infections. Tryptanthrin is a natural product commonly found in these plants. In this study, we demonstrated that tryptanthrin had antifungal activity with minimum inhibitory concentration (MIC) of 2 μg/ml against Cryptococcus species and of 8 μg/ml against Trichophyton rubrum. Further analysis demonstrated that tryptanthrin exerted fungistatic and potent antifungal activity at elevated temperature. https://www.selleckchem.com/products/nms-873.html In addition, tryptanthrin exhibited a synergistic effect with the calcineurin inhibitors FK506 and cyclosporine A against Cryptococcus neoformans. Furthermore, our data showed that tryptanthrin induced cell cycle arrest at the G1/S phase by regulating the expression of genes encoding cyclins and the SBF/MBF complex (CLN1, MBS1, cryptococcosis.
Natural killer (NK) cells have an important role in innate immunity and in the regulation of immune response. The role of NK cells expressing the programmed cell death protein-1 (PD-1) regulatory receptor has not been explored in patients with autoimmune thyroid disease (AITD).
To analyze the levels and function of PD-1+ NK cells in samples from AITD patients.
Cases and controls, observational study.
Hospital Universitario la Princesa, Spain.
Forty patients with AITD, 16 with Hashimoto thyroiditis (HT), 24 with Graves' disease (GD), and 15 healthy controls.
Multiparametric flow cytometry analysis of peripheral blood NK cells. In vitro assays of cytotoxic activity of NK cells, and synthesis of cytokines.
Levels and function of PD-1+ NK cells in blood samples from AITD patients and controls.
Increased levels of NK cells and the CD56dimPD-1+ subset were observed in GD patients. In HT, an enhanced expression of the regulatory receptors NKG2A and NKG2C by CD56brightPD-1+ NK cells was detected. AITD patients showed an increased synthesis of IL-10 by CD56brightPD-1- NK cells, whereas CD56dimPD-1+ cells from GD patients exhibited an enhanced production of interferon-γ. PD-1+ NK cells from patients with GD and HT showed an increased cytotoxic activity. Significant associations were observed in patients with GD or HT between the levels of PD-1+ NK cells and clinical laboratory parameters.
The different abnormalities in NK cell subset levels, in the expression of PD-1 and its function in AITD patients' further support the complex role of these cells in this pathogenesis.
The different abnormalities in NK cell subset levels, in the expression of PD-1 and its function in AITD patients' further support the complex role of these cells in this pathogenesis.
Smart glasses are a wearable technology that enable hands-free data acquisition and entry.
To develop a surgical pathology grossing application on a smart glass platform.
An existing logistics software for the Google Glass Enterprise smart glass platform was used to create surgical pathology grossing protocols. The 2 grossing protocols were developed to simulate grossing a complex (heart) and a simple (kidney) specimen. For both protocols, users were visually prompted by the smart glass device to perform each task, record measurements, or document the field of view. In addition to measuring the total time of the protocol performance, each substep within the protocol was automatically recorded. Subsequently, a report was generated that contained the dictation, images, voice recordings, and the timing of each step. The application was tested by 3 users using the 2 grossing protocols. The users were tracked across 3 grossing procedures for each protocol.
For the complex specimen grossing the average time across repeated procedures was not significantly different between users (P = .999). However, when grossing times of the complex specimen were compared for repeated performances of the same user, a significant reduction in grossing times was observed with each repetition (P = .002). For the simple specimen, the average grossing time across multiple attempts was different among users (P = .03); however, no improvement in grossing time was observed with repeated performance (P = .499).
Augmented reality based grossing applications can provide automated data collection to track the changes in grossing performance over time.
Augmented reality based grossing applications can provide automated data collection to track the changes in grossing performance over time.
HIV-1 proviruses persist in people on antiretroviral therapy (ART) but most are defective and do not constitute a replication-competent reservoir. The decay of infected cells carrying intact compared with defective HIV-1 proviruses has not been well-defined in people on ART.
We separately quantified intact and defective proviruses, residual plasma viremia, and markers of inflammation and activation in people on long-term ART.
Among 40 participants tested longitudinally from a median of 7.1 years to 12 years after ART initiation, intact provirus levels declined significantly over time (median half-life 7.1 years; 95% confidence interval [CI], 3.9, 18), whereas defective provirus levels did not decrease. The median half-life of total HIV-1 DNA was 41.6 years (95% CI, 13.6, 75). The proportion of all proviruses that were intact diminished over time on ART, from about 10% at the first on-ART timepoint to about 5% at the last. Intact provirus levels on ART correlated with total HIV-1 DNA and residual plasma viremia, but there was no evidence for associations between intact provirus levels and inflammation or immune activation.
Cells containing intact, replication-competent proviruses are selectively lost during suppressive ART. Defining the mechanisms involved should inform strategies to accelerate HIV-1 reservoir depletion.
Cells containing intact, replication-competent proviruses are selectively lost during suppressive ART. Defining the mechanisms involved should inform strategies to accelerate HIV-1 reservoir depletion.
The degradation pathways of JHXJZ under the present indoor simulation conditions were proposed.Cryptococcal meningitis is a prevalent invasive fungal infection that causes around 180 000 deaths annually. Currently, treatment for cryptococcal meningitis is limited and new therapeutic options are needed. Historically, medicinal plants are used to treat infectious and inflammatory skin infections. Tryptanthrin is a natural product commonly found in these plants. In this study, we demonstrated that tryptanthrin had antifungal activity with minimum inhibitory concentration (MIC) of 2 μg/ml against Cryptococcus species and of 8 μg/ml against Trichophyton rubrum. Further analysis demonstrated that tryptanthrin exerted fungistatic and potent antifungal activity at elevated temperature. https://www.selleckchem.com/products/nms-873.html In addition, tryptanthrin exhibited a synergistic effect with the calcineurin inhibitors FK506 and cyclosporine A against Cryptococcus neoformans. Furthermore, our data showed that tryptanthrin induced cell cycle arrest at the G1/S phase by regulating the expression of genes encoding cyclins and the SBF/MBF complex (CLN1, MBS1, cryptococcosis. Natural killer (NK) cells have an important role in innate immunity and in the regulation of immune response. The role of NK cells expressing the programmed cell death protein-1 (PD-1) regulatory receptor has not been explored in patients with autoimmune thyroid disease (AITD). To analyze the levels and function of PD-1+ NK cells in samples from AITD patients. Cases and controls, observational study. Hospital Universitario la Princesa, Spain. Forty patients with AITD, 16 with Hashimoto thyroiditis (HT), 24 with Graves' disease (GD), and 15 healthy controls. Multiparametric flow cytometry analysis of peripheral blood NK cells. In vitro assays of cytotoxic activity of NK cells, and synthesis of cytokines. Levels and function of PD-1+ NK cells in blood samples from AITD patients and controls. Increased levels of NK cells and the CD56dimPD-1+ subset were observed in GD patients. In HT, an enhanced expression of the regulatory receptors NKG2A and NKG2C by CD56brightPD-1+ NK cells was detected. AITD patients showed an increased synthesis of IL-10 by CD56brightPD-1- NK cells, whereas CD56dimPD-1+ cells from GD patients exhibited an enhanced production of interferon-γ. PD-1+ NK cells from patients with GD and HT showed an increased cytotoxic activity. Significant associations were observed in patients with GD or HT between the levels of PD-1+ NK cells and clinical laboratory parameters. The different abnormalities in NK cell subset levels, in the expression of PD-1 and its function in AITD patients' further support the complex role of these cells in this pathogenesis. The different abnormalities in NK cell subset levels, in the expression of PD-1 and its function in AITD patients' further support the complex role of these cells in this pathogenesis. Smart glasses are a wearable technology that enable hands-free data acquisition and entry. To develop a surgical pathology grossing application on a smart glass platform. An existing logistics software for the Google Glass Enterprise smart glass platform was used to create surgical pathology grossing protocols. The 2 grossing protocols were developed to simulate grossing a complex (heart) and a simple (kidney) specimen. For both protocols, users were visually prompted by the smart glass device to perform each task, record measurements, or document the field of view. In addition to measuring the total time of the protocol performance, each substep within the protocol was automatically recorded. Subsequently, a report was generated that contained the dictation, images, voice recordings, and the timing of each step. The application was tested by 3 users using the 2 grossing protocols. The users were tracked across 3 grossing procedures for each protocol. For the complex specimen grossing the average time across repeated procedures was not significantly different between users (P = .999). However, when grossing times of the complex specimen were compared for repeated performances of the same user, a significant reduction in grossing times was observed with each repetition (P = .002). For the simple specimen, the average grossing time across multiple attempts was different among users (P = .03); however, no improvement in grossing time was observed with repeated performance (P = .499). Augmented reality based grossing applications can provide automated data collection to track the changes in grossing performance over time. Augmented reality based grossing applications can provide automated data collection to track the changes in grossing performance over time. HIV-1 proviruses persist in people on antiretroviral therapy (ART) but most are defective and do not constitute a replication-competent reservoir. The decay of infected cells carrying intact compared with defective HIV-1 proviruses has not been well-defined in people on ART. We separately quantified intact and defective proviruses, residual plasma viremia, and markers of inflammation and activation in people on long-term ART. Among 40 participants tested longitudinally from a median of 7.1 years to 12 years after ART initiation, intact provirus levels declined significantly over time (median half-life 7.1 years; 95% confidence interval [CI], 3.9, 18), whereas defective provirus levels did not decrease. The median half-life of total HIV-1 DNA was 41.6 years (95% CI, 13.6, 75). The proportion of all proviruses that were intact diminished over time on ART, from about 10% at the first on-ART timepoint to about 5% at the last. Intact provirus levels on ART correlated with total HIV-1 DNA and residual plasma viremia, but there was no evidence for associations between intact provirus levels and inflammation or immune activation. Cells containing intact, replication-competent proviruses are selectively lost during suppressive ART. Defining the mechanisms involved should inform strategies to accelerate HIV-1 reservoir depletion. Cells containing intact, replication-competent proviruses are selectively lost during suppressive ART. Defining the mechanisms involved should inform strategies to accelerate HIV-1 reservoir depletion.0 Kommentare 0 Geteilt 106 Ansichten 0 Bewertungen -
They also found the webinar format favorable as it increased the accessibility of support and provided them with an interactive safe platform. Conclusions The study provides promising qualitative evidence for the use of TTP-Webinar in supporting the mental health needs of military partners.Background Peritoneal dialysis (PD) is an increasingly utilized treatment modality for renal replacement therapy that affords medical and lifestyle benefits to the patient and financial savings to the health care system. Successful long-term use of PD is reliant upon an optimally functioning catheter. Many potential catheter-related complications can be avoided through utilizing optimal placement technique. As widespread use of PD as a renal replacement modality continues to increase, the need for a safe, standardized, catheter placement technique has become more evident. Objectives To present a succinct synopsis of the rationale and elements of our current surgical management strategy for patients undergoing evaluation for PD and to provide a detailed stepwise description of our operative technique for PD catheter placement. This review describes potential pitfalls that may prevent optimal catheter function and describes each step taken to prevent potential complications. This description is combined with intraoperative photographs to highlight key steps. Conclusion Following a defined reproducible stepwise approach, laparoscopic placement of continuous ambulatory peritoneal dialysis catheters can be performed safely and known potential complications hindering optimal catheter function can be addressed prophylactically.Objectives Contraception use reduces teen pregnancy, and long-acting reversible contraception is recommended as first-line treatment. Since many adolescents use the emergency department (ED) as a primary source of health care, it is a potential site of contraceptive counseling and provision. We surveyed female adolescents to assess desire for contraceptive counseling and initiation/change during an ED visit. https://www.selleckchem.com/products/Nimodipine(Nimotop).html Materials and Methods This was a cross sectional study of a convenience sample of female ED patients aged 16-21 years in an urban pediatric ED. Participants completed an anonymous questionnaire about sexual health, contraceptive use, and interest in contraceptive counseling. The primary outcome was adolescent interest in starting/changing contraception during an ED visit. Results Three hundred eighty-one patients (mean age 19.1 ± 1.6 years) completed the survey. Most (80.5%) had been sexually active with a male partner, and 110 (28.2%) had previously been pregnant. Two-thirds were interested in discussing contraception and 22.5% were likely to start or change contraception during the ED visit. Those who wanted to start or change contraception were more likely to be sexually active with a male partner (93% vs. 82%, p = 0.02) and to report that they were not satisfied with their current contraception (44% vs. 21%, p = 0.0003). Fifteen (17%) of the adolescents likely to start or change contraception were interested in progestin implant initiation in the ED. Conclusions Adolescents were interested in initiating or changing contraception during the ED visit, providing an important opportunity to discuss and initiate effective contraception.Background Patient-clinician communication between office visits may improve patient outcomes by increasing patients' information retention and offering opportunities for patient-centered communication. Secure electronic messaging offers one such communication modality, but evidence of associations between its use and patient outcomes is mixed. To date, no study has examined the relationship between message content and patient outcomes. Introduction Secure message content provides context around patients' requests and whether clinicians responded in ways that improve care and outcomes. This study evaluates the use of a theory-based taxonomy to classify patients' and clinicians' message content and describes characteristics associated with coded content. Methods We coded message threads initiated in 2017 by 73 randomly selected patients with hypertension and/or diabetes. Multiple codes could be applied to each message. Chi-square analyses identified differences by patients' demographics and health condition. Results We analyzed 658 message threads composed of 1,751 clinician- and patient-generated messages, to which 2,055 taxonomic codes were assigned. Eighteen percent of patients' threads were unanswered. Most codes assigned to patient-generated messages were task-oriented (46%) or information seeking (26%) requests; 30% of clinician responses left those requests unfulfilled or unaddressed. Clinicians were more likely to recommend a patient be seen in the office based on patients' sex, age, and health condition. Furthermore, white patients were more likely to send, and receive from their clinicians, messages with praise and appreciation content compared with black patients. Conclusion Further research is needed to better understand how and why these differences exist so that patient-clinician electronic messaging is optimized to improve patient outcomes.Dynamic nuclear polarization (DNP) is one of the most prominent methods of sensitivity enhancement in nuclear magnetic resonance (NMR). Even though solid-state DNP under magic-angle spinning (MAS) has left the proof-of-concept phase and has become an important tool for structural investigations of biomolecules as well as materials, it is still far from mainstream applicability because of the potentially overwhelming combination of unique instrumentation, complex sample preparation, and a multitude of different mechanisms and methods available. In this review, I introduce the diverse field and history of DNP, combining aspects of NMR and electron paramagnetic resonance. I then explain the general concepts and detailed mechanisms relevant at high magnetic field, including solution-state methods based on Overhauser DNP but with a greater focus on the more established MAS DNP methods. Finally, I review practical considerations and fields of application and discuss future developments. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 71 is April 20, 2020.
They also found the webinar format favorable as it increased the accessibility of support and provided them with an interactive safe platform. Conclusions The study provides promising qualitative evidence for the use of TTP-Webinar in supporting the mental health needs of military partners.Background Peritoneal dialysis (PD) is an increasingly utilized treatment modality for renal replacement therapy that affords medical and lifestyle benefits to the patient and financial savings to the health care system. Successful long-term use of PD is reliant upon an optimally functioning catheter. Many potential catheter-related complications can be avoided through utilizing optimal placement technique. As widespread use of PD as a renal replacement modality continues to increase, the need for a safe, standardized, catheter placement technique has become more evident. Objectives To present a succinct synopsis of the rationale and elements of our current surgical management strategy for patients undergoing evaluation for PD and to provide a detailed stepwise description of our operative technique for PD catheter placement. This review describes potential pitfalls that may prevent optimal catheter function and describes each step taken to prevent potential complications. This description is combined with intraoperative photographs to highlight key steps. Conclusion Following a defined reproducible stepwise approach, laparoscopic placement of continuous ambulatory peritoneal dialysis catheters can be performed safely and known potential complications hindering optimal catheter function can be addressed prophylactically.Objectives Contraception use reduces teen pregnancy, and long-acting reversible contraception is recommended as first-line treatment. Since many adolescents use the emergency department (ED) as a primary source of health care, it is a potential site of contraceptive counseling and provision. We surveyed female adolescents to assess desire for contraceptive counseling and initiation/change during an ED visit. https://www.selleckchem.com/products/Nimodipine(Nimotop).html Materials and Methods This was a cross sectional study of a convenience sample of female ED patients aged 16-21 years in an urban pediatric ED. Participants completed an anonymous questionnaire about sexual health, contraceptive use, and interest in contraceptive counseling. The primary outcome was adolescent interest in starting/changing contraception during an ED visit. Results Three hundred eighty-one patients (mean age 19.1 ± 1.6 years) completed the survey. Most (80.5%) had been sexually active with a male partner, and 110 (28.2%) had previously been pregnant. Two-thirds were interested in discussing contraception and 22.5% were likely to start or change contraception during the ED visit. Those who wanted to start or change contraception were more likely to be sexually active with a male partner (93% vs. 82%, p = 0.02) and to report that they were not satisfied with their current contraception (44% vs. 21%, p = 0.0003). Fifteen (17%) of the adolescents likely to start or change contraception were interested in progestin implant initiation in the ED. Conclusions Adolescents were interested in initiating or changing contraception during the ED visit, providing an important opportunity to discuss and initiate effective contraception.Background Patient-clinician communication between office visits may improve patient outcomes by increasing patients' information retention and offering opportunities for patient-centered communication. Secure electronic messaging offers one such communication modality, but evidence of associations between its use and patient outcomes is mixed. To date, no study has examined the relationship between message content and patient outcomes. Introduction Secure message content provides context around patients' requests and whether clinicians responded in ways that improve care and outcomes. This study evaluates the use of a theory-based taxonomy to classify patients' and clinicians' message content and describes characteristics associated with coded content. Methods We coded message threads initiated in 2017 by 73 randomly selected patients with hypertension and/or diabetes. Multiple codes could be applied to each message. Chi-square analyses identified differences by patients' demographics and health condition. Results We analyzed 658 message threads composed of 1,751 clinician- and patient-generated messages, to which 2,055 taxonomic codes were assigned. Eighteen percent of patients' threads were unanswered. Most codes assigned to patient-generated messages were task-oriented (46%) or information seeking (26%) requests; 30% of clinician responses left those requests unfulfilled or unaddressed. Clinicians were more likely to recommend a patient be seen in the office based on patients' sex, age, and health condition. Furthermore, white patients were more likely to send, and receive from their clinicians, messages with praise and appreciation content compared with black patients. Conclusion Further research is needed to better understand how and why these differences exist so that patient-clinician electronic messaging is optimized to improve patient outcomes.Dynamic nuclear polarization (DNP) is one of the most prominent methods of sensitivity enhancement in nuclear magnetic resonance (NMR). Even though solid-state DNP under magic-angle spinning (MAS) has left the proof-of-concept phase and has become an important tool for structural investigations of biomolecules as well as materials, it is still far from mainstream applicability because of the potentially overwhelming combination of unique instrumentation, complex sample preparation, and a multitude of different mechanisms and methods available. In this review, I introduce the diverse field and history of DNP, combining aspects of NMR and electron paramagnetic resonance. I then explain the general concepts and detailed mechanisms relevant at high magnetic field, including solution-state methods based on Overhauser DNP but with a greater focus on the more established MAS DNP methods. Finally, I review practical considerations and fields of application and discuss future developments. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 71 is April 20, 2020.0 Kommentare 0 Geteilt 106 Ansichten 0 Bewertungen -
teins to 79.6%. The effect of L. barbarum berries, characterized by an increase in high density lipoproteins in rat blood (by 62.3%), may be due to a higher content of vitamins C, E and selenium (35, 11 and 22% more than in L. chinense), the presence of phytosterols and phytostanols, in particular dodecanoic acid. CONCLUSION The data obtained indicate a pronounced antioxidant effect of L. barbarum and L. chinense berries and the possibility of their use in the diet to correct lipid metabolism disorders. Copyright© GEOTAR-Media Publishing Group.The high incidence of nutritional deficiency in cystic fibrosis continues to be an urgent problem in pediatrics. https://www.selleckchem.com/products/exarafenib.html This is due to the multifactorial nature of these violations, one of which is the lack of effectiveness of nutritional correction. The aim of the research was to assess the actual diet of children and adolescents suffering from cystic fibrosis in order to develop an algorithm for individual approaches to correcting nutritional status. MATERIAL AND METHODS 150 children (boys - 85, girls - 65) aged 1 year to 18 years (average age 6.4±5.2 years) with a confirmed diagnosis of cystic fibrosis have been examined. Depending on age, the children were divided into groups the 1st group consisted of 40 children from 1 year to 2 years (average age 1.9±0.7 years); 2nd group - from 3 to 5 years (n=41, 4.4±1.0 years); 3rd group - from 6 to 9 years (n=43, 7.7±1.1 years); 4th group - from 10 to 18 years old (n=26, 13.1±2.5). The actual nutrition was evaluated by questionnaire for 3 days, including one day off. Body mass, height have been measured, and body mass index (BMI) have been calculated. RESULTS AND DISCUSSION Only children of the first three years of life had an optimal diet for this disease in terms of energy value. At the age of 3 years and older, the deficit of energy intake increased, reaching 32% of the individual requirement in adolescence (10-18 years). The structure of nutrition revealed an imbalance of the main nutrients in the direction of the predominance of the lipid component (more than 40% of the energy value) and increased intake of saturated fatty acids, with a reduced proportion of protein and carbohydrates. There was a lack of dietary intake of a number of vitamins (C, B1, B2, A, E, D) and mineral substances (iron, potassium). CONCLUSION The study showed the need for an individual approach to the correction of diet energy value and macronutrient intake in children with cystic fibrosis. Copyright© GEOTAR-Media Publishing Group.Psoriasis is a chronic relapsing disease that affects about 2% of the world's population and leads to medical and social losses. There is evidence of the effect of nutritional factors on the course of psoriasis in modern literature. The aim of the research was to analyze modern domestic and foreign literature on the role of nutritional factors, food allergies and the state of the gastrointestinal tract in the etiopathogenesis of psoriasis Material and methods. The electronic resources were used in preparing the article the PubMed/MEDLINE portal, "Scientific Electronic Library eLIBRARY.RU". The following filters and keywords were requested psoriasis and nutrition, food allergies and psoriasis, gastrointestinal manifestations and psoriasis, diet and psoriasis, obesity and psoriasis. Results and discussion. The role of nutrition as a predictor of the development of psoriatic skin rashes and exacerbation of the disease has been discussed. The mechanisms of the positive influence of the correction of metabolic disn with standard systemic therapy. Copyright© GEOTAR-Media Publishing Group.The last two or three decades in the epidemiology of nutrition empirical approaches to assessing the diet of the population are increasingly being used. However, in Russian studies, these approaches are used extremely rarely, which may be due to insufficient knowledge of the essence, methodological aspects and the field of application of posterior dietary patterns. In this regard, the aim of this review was to highlight the essence, methods and main results of using empirical approaches to assessing the diet of the population. Results. This review discusses the main methodological features of multivariate analysis methods - factor analysis (principal component analysis) and cluster analysis. The main trends of dietary patterns characteristic of the epidemiology of nutrition, and various in different countries and regions are shown. The results of studies of the impact of dietary patterns on some indicators of health status (cardiovascular and oncological diseases, diseases of the musculoskeletal system, diabe their testing in Russian conditions, which, perhaps, will give new knowledge about the dietary patterns formation and its impact on the health status of Russians. Copyright© GEOTAR-Media Publishing Group.Objective To determine the prevalence of excessive daytime sleepiness among medical students and establish a relationship between self-perceived sleepiness and psychological distress. Methods In a cross-sectional study, 441 medical students from a public-sector university in Pakistan completed a questionnaire from August to December 2018. The questionnaire included the Epworth Sleepiness Scale (ESS), which measured daytime sleepiness, and the 12-item General Health Questionnaire (GHQ-12), which measured mental health. Pearson correlations and student t tests were used for comparisons with a significance level of P less then .05. Results Many of the students (44.9%) obtained a high score (≥ 10) on the ESS (ie, experience excessive daytime sleepiness). On average, higher scores on the ESS correlated with higher scores on the GHQ-12. A statistically significant correlation (P less then .05) between ESS scores and GHQ-12 scores was obtained when the students with higher (≥ 10) ESS scores were compared with students with lower ( less then 10) ESS scores. Conclusions Excessive daytime sleepiness is frequent among medical students and significantly associated with psychological distress. Thus, careful investment in planning appropriate university policies and class schedules is required to encourage healthy and adequate sleep among students, which could have a significant impact on learning, academic performance, and health of medical students. © Copyright 2020 Physicians Postgraduate Press, Inc.
teins to 79.6%. The effect of L. barbarum berries, characterized by an increase in high density lipoproteins in rat blood (by 62.3%), may be due to a higher content of vitamins C, E and selenium (35, 11 and 22% more than in L. chinense), the presence of phytosterols and phytostanols, in particular dodecanoic acid. CONCLUSION The data obtained indicate a pronounced antioxidant effect of L. barbarum and L. chinense berries and the possibility of their use in the diet to correct lipid metabolism disorders. Copyright© GEOTAR-Media Publishing Group.The high incidence of nutritional deficiency in cystic fibrosis continues to be an urgent problem in pediatrics. https://www.selleckchem.com/products/exarafenib.html This is due to the multifactorial nature of these violations, one of which is the lack of effectiveness of nutritional correction. The aim of the research was to assess the actual diet of children and adolescents suffering from cystic fibrosis in order to develop an algorithm for individual approaches to correcting nutritional status. MATERIAL AND METHODS 150 children (boys - 85, girls - 65) aged 1 year to 18 years (average age 6.4±5.2 years) with a confirmed diagnosis of cystic fibrosis have been examined. Depending on age, the children were divided into groups the 1st group consisted of 40 children from 1 year to 2 years (average age 1.9±0.7 years); 2nd group - from 3 to 5 years (n=41, 4.4±1.0 years); 3rd group - from 6 to 9 years (n=43, 7.7±1.1 years); 4th group - from 10 to 18 years old (n=26, 13.1±2.5). The actual nutrition was evaluated by questionnaire for 3 days, including one day off. Body mass, height have been measured, and body mass index (BMI) have been calculated. RESULTS AND DISCUSSION Only children of the first three years of life had an optimal diet for this disease in terms of energy value. At the age of 3 years and older, the deficit of energy intake increased, reaching 32% of the individual requirement in adolescence (10-18 years). The structure of nutrition revealed an imbalance of the main nutrients in the direction of the predominance of the lipid component (more than 40% of the energy value) and increased intake of saturated fatty acids, with a reduced proportion of protein and carbohydrates. There was a lack of dietary intake of a number of vitamins (C, B1, B2, A, E, D) and mineral substances (iron, potassium). CONCLUSION The study showed the need for an individual approach to the correction of diet energy value and macronutrient intake in children with cystic fibrosis. Copyright© GEOTAR-Media Publishing Group.Psoriasis is a chronic relapsing disease that affects about 2% of the world's population and leads to medical and social losses. There is evidence of the effect of nutritional factors on the course of psoriasis in modern literature. The aim of the research was to analyze modern domestic and foreign literature on the role of nutritional factors, food allergies and the state of the gastrointestinal tract in the etiopathogenesis of psoriasis Material and methods. The electronic resources were used in preparing the article the PubMed/MEDLINE portal, "Scientific Electronic Library eLIBRARY.RU". The following filters and keywords were requested psoriasis and nutrition, food allergies and psoriasis, gastrointestinal manifestations and psoriasis, diet and psoriasis, obesity and psoriasis. Results and discussion. The role of nutrition as a predictor of the development of psoriatic skin rashes and exacerbation of the disease has been discussed. The mechanisms of the positive influence of the correction of metabolic disn with standard systemic therapy. Copyright© GEOTAR-Media Publishing Group.The last two or three decades in the epidemiology of nutrition empirical approaches to assessing the diet of the population are increasingly being used. However, in Russian studies, these approaches are used extremely rarely, which may be due to insufficient knowledge of the essence, methodological aspects and the field of application of posterior dietary patterns. In this regard, the aim of this review was to highlight the essence, methods and main results of using empirical approaches to assessing the diet of the population. Results. This review discusses the main methodological features of multivariate analysis methods - factor analysis (principal component analysis) and cluster analysis. The main trends of dietary patterns characteristic of the epidemiology of nutrition, and various in different countries and regions are shown. The results of studies of the impact of dietary patterns on some indicators of health status (cardiovascular and oncological diseases, diseases of the musculoskeletal system, diabe their testing in Russian conditions, which, perhaps, will give new knowledge about the dietary patterns formation and its impact on the health status of Russians. Copyright© GEOTAR-Media Publishing Group.Objective To determine the prevalence of excessive daytime sleepiness among medical students and establish a relationship between self-perceived sleepiness and psychological distress. Methods In a cross-sectional study, 441 medical students from a public-sector university in Pakistan completed a questionnaire from August to December 2018. The questionnaire included the Epworth Sleepiness Scale (ESS), which measured daytime sleepiness, and the 12-item General Health Questionnaire (GHQ-12), which measured mental health. Pearson correlations and student t tests were used for comparisons with a significance level of P less then .05. Results Many of the students (44.9%) obtained a high score (≥ 10) on the ESS (ie, experience excessive daytime sleepiness). On average, higher scores on the ESS correlated with higher scores on the GHQ-12. A statistically significant correlation (P less then .05) between ESS scores and GHQ-12 scores was obtained when the students with higher (≥ 10) ESS scores were compared with students with lower ( less then 10) ESS scores. Conclusions Excessive daytime sleepiness is frequent among medical students and significantly associated with psychological distress. Thus, careful investment in planning appropriate university policies and class schedules is required to encourage healthy and adequate sleep among students, which could have a significant impact on learning, academic performance, and health of medical students. © Copyright 2020 Physicians Postgraduate Press, Inc.0 Kommentare 0 Geteilt 112 Ansichten 0 Bewertungen -
Preeclampsia leads to increased risk of morbidity and mortality for both mother and fetus. Most previous studies have largely neglected mechanical compression of the left renal vein by the gravid uterus as a potential mechanism. In this study, we first used a murine model to investigate the pathophysiology of left renal vein constriction. The results indicate that prolonged renal vein stenosis after 14 days can cause renal necrosis and an increase in blood pressure (BP) of roughly 30 mmHg. The second part of this study aimed to automate a diagnostic tool, known as the supine pressor test (SPT), to enable pregnant women to assess their preeclampsia development risk. A positive SPT has been previously defined as an increase of at least 20 mmHg in diastolic BP when switching between left lateral recumbent and supine positions. The results from this study established a baseline BP increase between the two body positions in nonpregnant women and demonstrated the feasibility of an autonomous SPT in pregnant women. Our results demonstrate that there is a baseline increase in BP of roughly 10-14 mmHg and that pregnant women can autonomously perform the SPT. Overall, this work in both rodents and humans suggests that (1) stenosis of the left renal vein in **** leads to elevation in BP and acute renal failure, (2) nonpregnant women experience a baseline increase in BP when they shift from left lateral recumbent to supine position, and (3) the SPT can be automated and used autonomously.Background Some hormones measured in pregnancy are linked to certain hormone-sensitive cancers. https://www.selleckchem.com/products/cd532.html We investigated whether routine serum screening in pregnancy is associated with a woman's subsequent risk of hormone-sensitive cancer. Methods This population-based cohort study included women aged 12-55 years who underwent prenatal screening between 11 weeks + 0 days of gestation to 20 weeks + 6 days of gestation in Ontario, Canada, 1993-2011, where universal health care is available. The hazard ratio of newly diagnosed breast, ovarian, endometrial, and thyroid cancer-arising at 21 weeks + 0 days of gestation or thereafter-was estimated in association with an abnormally low (≤5th) or high (>95th) percentile multiple of the median (MoM) for alpha-fetoprotein (AFP), total human chorionic gonadotropin (hCG), unconjugated estriol, pregnancy-associated plasma protein A, and dimeric inhibin A. Results Among 677 247 pregnant women followed for a median of 11.0 years (interquartile range = 7.5-16.1), 7231 (1.07%) developed breast cancer, 515 (0.08%) ovarian cancer, 508 (0.08%) endometrial cancer, and 4105 (0.61%) thyroid cancer. In multivariable adjusted models, abnormally high hCG greater than the 95th percentile MoM was associated with a doubling in the risk of endometrial cancer (adjusted hazard ratio [aHR] = 1.98, 95% confidence interval [CI] = 1.33 to 2.95), and abnormally low AFP at the fifth percentile or less MoM conferred a moderately greater risk of thyroid cancer (aHR = 1.21, 95% CI = 1.07 to 1.38). Abnormally low pregnancy-associated plasma protein A at the fifth percentile or less MoM was not statistically significantly associated with breast cancer after multivariable adjustment (aHR = 1.19, 95% CI = 0.98 to 1.36). Conclusions Women with abnormally high levels of serum hCG or low AFP in early pregnancy may be at a greater future risk of certain types of hormone-sensitive cancers. © The Author(s) 2020. Published by Oxford University Press.in German As a dynamic journal, now indexed in PubMed/Medline, Ultrasound International Open continued in 2019 with important original articles, reviews and case presentations.Background Recent observational data and a controlled in-patient crossover feeding trial show that consumption of "ultra-processed foods" (UPFs), as defined by the NOVA classification system, is associated with higher energy intake, adiposity, and at a population level, higher prevalence of obesity. A drawback of the NOVA classification is the lack of evidence supporting a causal mechanism for why UPFs lead to overconsumption of energy. In a recent study by Hall the energy intake rate in the UPF condition (48 kcal/min) was >50% higher than in the unprocessed condition (31 kcal/min). Extensive empirical evidence has shown the impact that higher energy density has on increasing ad libitum energy intake and body weight. A significant body of research has shown that consuming foods at higher eating rates is related to higher energy intake and a higher prevalence of obesity. Energy density can be combined with eating rate to create a measure of energy intake rate (kcal/min), providing an index of a food's potential to promote increased energy intake. Objective The current paper compared the association between measured energy intake rate and level of processing as defined by the NOVA classification. Methods Data were pooled from 5 published studies that measured energy intake rates across a total sample of 327 foods. Results We show that going from unprocessed, to processed, to UPFs that the average energy intake rate increases from 35.5 ± 4.4, to 53.7 ± 4.3, to 69.4 ± 3.1 kcal/min (P less then 0.05). However, within each processing category there is wide variability in the energy intake rate. Conclusions We conclude that reported relations between UPF consumption and obesity should account for differences in energy intake rates when comparing unprocessed and ultra-processed diets. Future research requires well-controlled human feeding trials to establish the causal mechanisms for why certain UPFs can promote higher energy intake. Copyright © The Author(s) 2020.Background Dietary guidance encourages consuming a variety of fruit and vegetables (FVs), which has been associated with higher FV intake and nutrient adequacy. Dietary intake of adults in the United States has not been described in the context of variety. Objectives The objective of this study was to describe FV consumption of adults in the United States by level of FV variety. Methods One day of dietary intake data of adults aged ≥20 y (n = 10,064) in What We Eat in America, NHANES 2013-2016 were used. FV variety was the count of foods consumed that contributed to total FV intake. Each FV was counted only once; a mixed dish counted as 1. Variety levels were high (≥5 items, n = 2316); moderate (3-4 items, n = 3423); or low (1-2 items, n = 3746). Differences between each level of variety were compared by t test. Results Among the low, moderate, and high levels, total FV intakes were 1.4, 2.6, and 4.4 cup equivalents (CE), respectively. CE amounts of FVs consumed were 0.3, 0.6, and 1.4 of vegetables excluding potatoes; 0.
Preeclampsia leads to increased risk of morbidity and mortality for both mother and fetus. Most previous studies have largely neglected mechanical compression of the left renal vein by the gravid uterus as a potential mechanism. In this study, we first used a murine model to investigate the pathophysiology of left renal vein constriction. The results indicate that prolonged renal vein stenosis after 14 days can cause renal necrosis and an increase in blood pressure (BP) of roughly 30 mmHg. The second part of this study aimed to automate a diagnostic tool, known as the supine pressor test (SPT), to enable pregnant women to assess their preeclampsia development risk. A positive SPT has been previously defined as an increase of at least 20 mmHg in diastolic BP when switching between left lateral recumbent and supine positions. The results from this study established a baseline BP increase between the two body positions in nonpregnant women and demonstrated the feasibility of an autonomous SPT in pregnant women. Our results demonstrate that there is a baseline increase in BP of roughly 10-14 mmHg and that pregnant women can autonomously perform the SPT. Overall, this work in both rodents and humans suggests that (1) stenosis of the left renal vein in mice leads to elevation in BP and acute renal failure, (2) nonpregnant women experience a baseline increase in BP when they shift from left lateral recumbent to supine position, and (3) the SPT can be automated and used autonomously.Background Some hormones measured in pregnancy are linked to certain hormone-sensitive cancers. https://www.selleckchem.com/products/cd532.html We investigated whether routine serum screening in pregnancy is associated with a woman's subsequent risk of hormone-sensitive cancer. Methods This population-based cohort study included women aged 12-55 years who underwent prenatal screening between 11 weeks + 0 days of gestation to 20 weeks + 6 days of gestation in Ontario, Canada, 1993-2011, where universal health care is available. The hazard ratio of newly diagnosed breast, ovarian, endometrial, and thyroid cancer-arising at 21 weeks + 0 days of gestation or thereafter-was estimated in association with an abnormally low (≤5th) or high (>95th) percentile multiple of the median (MoM) for alpha-fetoprotein (AFP), total human chorionic gonadotropin (hCG), unconjugated estriol, pregnancy-associated plasma protein A, and dimeric inhibin A. Results Among 677 247 pregnant women followed for a median of 11.0 years (interquartile range = 7.5-16.1), 7231 (1.07%) developed breast cancer, 515 (0.08%) ovarian cancer, 508 (0.08%) endometrial cancer, and 4105 (0.61%) thyroid cancer. In multivariable adjusted models, abnormally high hCG greater than the 95th percentile MoM was associated with a doubling in the risk of endometrial cancer (adjusted hazard ratio [aHR] = 1.98, 95% confidence interval [CI] = 1.33 to 2.95), and abnormally low AFP at the fifth percentile or less MoM conferred a moderately greater risk of thyroid cancer (aHR = 1.21, 95% CI = 1.07 to 1.38). Abnormally low pregnancy-associated plasma protein A at the fifth percentile or less MoM was not statistically significantly associated with breast cancer after multivariable adjustment (aHR = 1.19, 95% CI = 0.98 to 1.36). Conclusions Women with abnormally high levels of serum hCG or low AFP in early pregnancy may be at a greater future risk of certain types of hormone-sensitive cancers. © The Author(s) 2020. Published by Oxford University Press.in German As a dynamic journal, now indexed in PubMed/Medline, Ultrasound International Open continued in 2019 with important original articles, reviews and case presentations.Background Recent observational data and a controlled in-patient crossover feeding trial show that consumption of "ultra-processed foods" (UPFs), as defined by the NOVA classification system, is associated with higher energy intake, adiposity, and at a population level, higher prevalence of obesity. A drawback of the NOVA classification is the lack of evidence supporting a causal mechanism for why UPFs lead to overconsumption of energy. In a recent study by Hall the energy intake rate in the UPF condition (48 kcal/min) was >50% higher than in the unprocessed condition (31 kcal/min). Extensive empirical evidence has shown the impact that higher energy density has on increasing ad libitum energy intake and body weight. A significant body of research has shown that consuming foods at higher eating rates is related to higher energy intake and a higher prevalence of obesity. Energy density can be combined with eating rate to create a measure of energy intake rate (kcal/min), providing an index of a food's potential to promote increased energy intake. Objective The current paper compared the association between measured energy intake rate and level of processing as defined by the NOVA classification. Methods Data were pooled from 5 published studies that measured energy intake rates across a total sample of 327 foods. Results We show that going from unprocessed, to processed, to UPFs that the average energy intake rate increases from 35.5 ± 4.4, to 53.7 ± 4.3, to 69.4 ± 3.1 kcal/min (P less then 0.05). However, within each processing category there is wide variability in the energy intake rate. Conclusions We conclude that reported relations between UPF consumption and obesity should account for differences in energy intake rates when comparing unprocessed and ultra-processed diets. Future research requires well-controlled human feeding trials to establish the causal mechanisms for why certain UPFs can promote higher energy intake. Copyright © The Author(s) 2020.Background Dietary guidance encourages consuming a variety of fruit and vegetables (FVs), which has been associated with higher FV intake and nutrient adequacy. Dietary intake of adults in the United States has not been described in the context of variety. Objectives The objective of this study was to describe FV consumption of adults in the United States by level of FV variety. Methods One day of dietary intake data of adults aged ≥20 y (n = 10,064) in What We Eat in America, NHANES 2013-2016 were used. FV variety was the count of foods consumed that contributed to total FV intake. Each FV was counted only once; a mixed dish counted as 1. Variety levels were high (≥5 items, n = 2316); moderate (3-4 items, n = 3423); or low (1-2 items, n = 3746). Differences between each level of variety were compared by t test. Results Among the low, moderate, and high levels, total FV intakes were 1.4, 2.6, and 4.4 cup equivalents (CE), respectively. CE amounts of FVs consumed were 0.3, 0.6, and 1.4 of vegetables excluding potatoes; 0.0 Kommentare 0 Geteilt 134 Ansichten 0 Bewertungen
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