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Atrial Transcriptional Profiles of Molecular Targets Mediating Electrophysiological Function in Aging and Pgc-1 β Deficient Murine Hearts
Conclusion: These findings limit the possible roles of gene transcriptional changes in previously reported age-dependent pro-arrhythmic electrophysiologial changes observed in Pgc-1β-/- atria to an altered Ca2+-ATPase (Atp2a2) expression. This directly parallels previously reported arrhythmic mechanism associated with p21-activated kinase type 1 deficiency. This could add to contributions from the direct physiological outcomes of mitochondrial dysfunction, whether through reactive oxygen species (ROS) production or altered Ca2+ homeostasis. Introduction Atrial arrhythmias constitute a major public health pro...
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Impaired Activity of Ryanodine Receptors Contributes to Calcium Mishandling in Cardiomyocytes of Metabolic Syndrome Rats
Conclusion Principal findings of this work are that abnormal Ca2+ transient amplitude, contractile dysfunction; and impaired relaxation of MetS cardiomyocytes underlies intrinsic dysfunctional RyR2 and SERCA pump. Abnormal activity of RyRs was evidenced by its decreased ability to bind [3H]-ryanodine. Although the MetS condition does not modify RyR2 protein expression, its phosphorylation at Ser2814 is decreased, which impairs its capacity for activation during ECC. The dysfunctional RyRs, together with a decreased activity of SERCA pump due to decreased Thr17-PLN phosphorylation suggest a downregulation of CaMKII in MetS...
Source: Frontiers in Physiology - April 29, 2019 Category: Physiology Source Type: research

Enhanced Renal Clearance in Patients With Hemorrhagic Stroke*
Objectives: To evaluate enhanced renal clearance over time in patients with aneurysmal subarachnoid hemorrhage or intracerebral hemorrhage via measured creatinine clearance and to compare measured creatinine clearance to creatinine clearance calculated by the Cockcroft-Gault equation and estimated glomerular filtration rate calculated by the Modification of Diet in Renal Diseases equation. Design: Prospective, observational study. Setting: Neurosciences ICU in a tertiary care academic medical center. Patients: Study participants had an admission diagnosis of aneurysmal subarachnoid hemorrhage or intracerebral he...
Source: Critical Care Medicine - May 16, 2019 Category: Emergency Medicine Tags: Clinical Investigations Source Type: research

Associations of choline-related nutrients with cardiometabolic and all-cause mortality: results from 3 prospective cohort studies of blacks, whites, and Chinese.
CONCLUSIONS: High choline intake was associated with increased cardiometabolic mortality in racially diverse populations. PMID: 31915809 [PubMed - as supplied by publisher]
Source: The American Journal of Clinical Nutrition - January 7, 2020 Category: Nutrition Authors: Yang JJ, Lipworth LP, Shu XO, Blot WJ, Xiang YB, Steinwandel MD, Li H, Gao YT, Zheng W, Yu D Tags: Am J Clin Nutr Source Type: research

Skipping breakfast before and during early pregnancy and incidence of gestational diabetes mellitus: the Japan Environment and Children's Study.
CONCLUSIONS: Breakfast consumption <3 times/wk before and during early pregnancy, compared with daily consumption, was associated with an increased odds of developing GDM. PMID: 32020171 [PubMed - as supplied by publisher]
Source: The American Journal of Clinical Nutrition - February 4, 2020 Category: Nutrition Authors: Dong JY, Ikehara S, Kimura T, Cui M, Kawanishi Y, Kimura T, Ueda K, Iso H, Japan Environment and Children's Study Group Tags: Am J Clin Nutr Source Type: research

Healthful dietary patterns and risk of end-stage kidney disease: the Singapore Chinese Health Study.
CONCLUSIONS: Adherence to healthful dietary patterns was associated with a lower ESKD risk in an Asian population, especially in overweight or obese individuals. PMID: 33381807 [PubMed - as supplied by publisher]
Source: Am J Clin Nutr - December 31, 2020 Category: Nutrition Authors: Geng TT, Jafar TH, Neelakantan N, Yuan JM, van Dam RM, Koh WP Tags: Am J Clin Nutr Source Type: research

PNR Weekly Digest: April 6, 2021
Items regarding COVID-19 information are indicated with an * In the Dragonfly: Understanding End-of-Life Matters Whether your focus of concern is on a family member or yourself, this April the NNLM Reading Club suggests three books that may help with your understanding of end-of-life matters and those conversations you probably have been putting off…read the post to see the book selections Professional Development: NNLM CE Opportunities: NNLM offers training on a variety of topics related to health information. A complete listing of NNLM educational opportunities is available. Please note you need to create an NNLM accou...
Source: Dragonfly - April 6, 2021 Category: Databases & Libraries Authors: Carolyn Martin Tags: PNR Weekly Digest Source Type: news

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