Filtered By:
Specialty: Biomedical Science
Nutrition: Calcium
This page shows you your search results in order of relevance.
Order by Relevance | Date
Total 42 results found since Jan 2013.
Association between the TIMD4-HAVCR1 variants and serum lipid levels, coronary heart disease and ischemic stroke risk and atorvastatin lipid-lowering efficacy.
This study aimed to determine the TIMD4-HAVCR1 variants, their haplotypes and gene-environment interactions on serum lipid levels, the risk of CHD and IS, and the lipid-lowering efficacy of atorvastatin in a southern Chinese Han population. Genotypes of 3 variants in 622 controls, 579 CHD and 546 IS patients were determined by the Snapshot technology. Atorvastatin calcium tablet (20 mg/d) was given in 724 hyperlipidemic patients for 8 weeks after genotyping. The rs12522248 genotypic and allelic frequencies were different between controls and patients, and were associated with the risk of CHD and IS. The rs1501908G-rs125222...
Source: Bioscience Reports - December 5, 2017 Category: Biomedical Science Authors: Zhang QH, Yin RX, Chen WX, Cao XL, Chen YM Tags: Biosci Rep Source Type: research
Calcium-dependent blood-brain barrier breakdown by NOX5 limits postreperfusion benefit in stroke
Ischemic stroke is a predominant cause of disability worldwide, with thrombolytic or mechanical removal of the occlusion being the only therapeutic option. Reperfusion bears the risk of an acute deleterious calcium-dependent breakdown of the blood-brain barrier. Its mechanism, however, is unknown. Here, we identified type 5 NADPH oxidase (NOX5), a calcium-activated, ROS-forming enzyme, as the missing link. Using a humanized knockin (KI) mouse model and in vitro organotypic cultures, we found that reoxygenation or calcium overload increased brain ROS levels in a NOX5-dependent manner. In vivo, postischemic ROS formation, in...
Source: Journal of Clinical Investigation - March 19, 2019 Category: Biomedical Science Authors: Ana I. Casas, Pamela W.M. Kleikers, Eva Geuss, Friederike Langhauser, Thure Adler, Dirk H. Busch, Valerie Gailus-Durner, Martin Hrabê de Angelis, Javier Egea, Manuela G. Lopez, Christoph Kleinschnitz, Harald H.H.W. Schmidt Source Type: research
Association of vitamin D metabolites with cognitive function and brain atrophy in elderly individuals - the Austrian stroke prevention study
CONCLUSIONS: Vitamin D deficient individuals appear to have a modest reduction of memory function without structural brain atrophy. Future studies should explore if vitamin D supplementation can improve cognitive function.PMID:33825696 | DOI:10.18632/aging.202930
Source: Aging - April 7, 2021 Category: Biomedical Science Authors: Sieglinde Zelzer Edith Hofer Andreas Meinitzer Eva Fritz-Petrin Sebastian Simstich Walter Goessler Reinhold Schmidt Markus Herrmann Source Type: research
Plasma exosome proteomics reveals the pathogenesis mechanism of post-stroke cognitive impairment
Aging (Albany NY). 2023 May 20;15. doi: 10.18632/aging.204738. Online ahead of print.ABSTRACTExploration and utilization of exosome biomarkers and their related functions provide the possibility for the diagnosis and treatment of post-stroke cognitive impairment (PSCI). To identify the new diagnostic and prognostic biomarkers of plasma exosome were uzed label-free quantitative proteomics and biological information analysis in PSCI patients. Behavioral assessments were performed, including the Mini-Mental Status Examination (MMSE), the Montreal Cognitive Assessment (MoCA), the Barthel index, the Morse Fall Seale (MFS) betwe...
Source: Aging - May 21, 2023 Category: Biomedical Science Authors: Baoyun Qi Lingbo Kong Xinxing Lai Linshuang Wang Fei Liu Weiwei Ji Dongfeng Wei Source Type: research
The Ca2+-gated channel TMEM16A amplifies capillary pericyte contraction and reduces cerebral blood flow after ischemia
Pericyte-mediated capillary constriction decreases cerebral blood flow in stroke after an occluded artery is unblocked. The determinants of pericyte tone are poorly understood. We show that a small rise in cytoplasmic Ca2+ concentration ([Ca2+]i) in pericytes activated chloride efflux through the Ca2+-gated anion channel TMEM16A, thus depolarizing the cell and opening voltage-gated calcium channels. This mechanism strongly amplified the pericyte [Ca2+]i rise and capillary constriction evoked by contractile agonists and ischemia. In a rodent stroke model, TMEM16A inhibition slowed the ischemia-evoked pericyte [Ca2+]i rise, ...
Source: Journal of Clinical Investigation - May 2, 2022 Category: Biomedical Science Authors: Nils Korte, Zeki Ilkan, Claire L. Pearson, Thomas Pfeiffer, Prabhav Singhal, Jason R. Rock, Huma Sethi, Dipender Gill, David Attwell, Paolo Tammaro Source Type: research
Factors contributing to poor COVID-19 outcomes in diabetic patients: Findings from a single-center cohort study
This article is a retrospective cohort study that include diabetic patients hospitalized with COVID-19 infection. A definition of diabetes was based on th e past history of diabetes or if the HbA1c was 6.5% or higher. Demographics, clinical characteristics, comorbidities, laboratory results, and complications were extracted from the electronic medical records. The mortality rate increased with increasing age (from 5.56% in younger patients to 46% in t he elderly) and with severity (from 25.71% in moderate cases to 43.77% in critical cases). We found that a critical severity on admission (OR: 5.26, 95% CI: 1.28–21.66,p = ...
Source: PLoS One - August 31, 2023 Category: Biomedical Science Authors: Nosayba Al-Azzam Source Type: research
BIN2 orchestrates platelet calcium signaling in thrombosis and thrombo-inflammation
Store-operated Ca2+ entry (SOCE) is the major route of Ca2+ influx in platelets. The Ca2+ sensor stromal interaction molecule 1 (STIM1) triggers SOCE by forming punctate structures with the Ca2+ channel Orai1 and the inositol trisphosphate receptor (IP3R), thereby linking the endo-/sarcoplasmic reticulum to the plasma membrane. Here, we identified the BAR domain superfamily member bridging integrator 2 (BIN2) as an interaction partner of STIM1 and IP3R in platelets. Deletion of platelet BIN2 (Bin2fl/fl,Pf4-Cre mice) resulted in reduced Ca2+ store release and Ca2+ influx in response to all tested platelet agonists. These de...
Source: Journal of Clinical Investigation - October 13, 2020 Category: Biomedical Science Authors: Julia Volz, Charly Kusch, Sarah Beck, Michael Popp, Timo Vögtle, Mara Meub, Inga Scheller, Hannah S. Heil, Julia Preu, Michael K. Schuhmann, Katherina Hemmen, Thomas Premsler, Albert Sickmann, Katrin G. Heinze, David Stegner, Guido Stoll, Attila Braun, M Source Type: research
Fat-to-muscle Ratio: A New Indicator for Coronary Artery Disease in Healthy Adults
Conclusion: In this study, a high FMR was significantly associated with CAC. A large-scale prospective study on the association with FMR and cardiovascular diseases is necessary to confirm this relationship.PMID:34790047 | PMC:PMC8579285 | DOI:10.7150/ijms.62871
Source: International Journal of Medical Sciences - November 18, 2021 Category: Biomedical Science Authors: Youngmi Eun Su Nam Lee Sang-Wook Song Ha-Na Kim Se-Hong Kim Yun-Ah Lee Sung-Goo Kang Jun-Seung Rho Ki-Dong Yoo Source Type: research
