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Specialty: Physiology
Nutrition: Calcium

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Total 48 results found since Jan 2013.

Physical and Physiologic Effects of Dobutamine Stress Echocardiography in Low-Gradient Aortic Stenosis
CONCLUSION: During DSE, aortic valve area increases with increase aortic valve gradient. Higher calcium score is associated with lower baseline aortic valve area, but the area valve area still increases with dobutamine even in presence of high calcium score.PMID:34860593 | DOI:10.1152/ajpheart.00183.2021
Source: American Journal of Physiology. Heart and Circulatory Physiology - December 3, 2021 Category: Physiology Authors: Kimi Sato Tom Kai Ming Wang Milind Y Desai Samir R Kapadia Amar Krishnaswamy L Leonardo Rodriguez Richard A Grimm Brian P Griffin Zoran B Popovic Source Type: research

Relevance of stromal interaction molecule 1 (STIM1) in experimental and human stroke
Pflugers Arch. 2021 Nov 10. doi: 10.1007/s00424-021-02636-w. Online ahead of print.ABSTRACTStroke represents a main cause of death and permanent disability worldwide. In the attempt to develop targeted preventive and therapeutic strategies, several efforts were performed over the last decades to identify the specific molecular abnormalities preceding cerebral ischemia and neuronal death. In this regard, mitochondrial dysfunction, autophagy, and intracellular calcium homeostasis appear important contributors to stroke development, as underscored by recent pre-clinical evidence. Intracellular calcium (Ca2+) homeostasis is re...
Source: Pflugers Archiv : European Journal of Physiology - November 10, 2021 Category: Physiology Authors: Rosita Stanzione Maurizio Forte Maria Cotugno Franca Bianchi Simona Marchitti Speranza Rubattu Source Type: research

Mitochondrial calcium exchange in physiology and disease
Physiol Rev. 2021 Oct 26. doi: 10.1152/physrev.00041.2020. Online ahead of print.ABSTRACTThe uptake of calcium into and extrusion of calcium from the mitochondrial matrix is a fundamental biological process that has critical effects on cellular metabolism, signaling, and survival. Disruption of mitochondrial calcium (mCa2+) cycling is implicated in numerous acquired diseases such as heart failure, stroke, neurodegeneration, diabetes, and cancer, and is genetically linked to several inherited neuromuscular disorders. Understanding the mechanisms responsible for mCa2+ exchange therefore holds great promise for the treatment ...
Source: Physiological Reviews - October 26, 2021 Category: Physiology Authors: Joanne F Garbincius John W Elrod Source Type: research

Diabetes and Heart Failure: Multi-Omics Approaches
This article reviewed the recent omics-driven discoveries in the diagnosis and treatment of type 2 diabetes and heart failure with focus on the common molecular mechanisms.
Source: Frontiers in Physiology - August 6, 2021 Category: Physiology Source Type: research

The crosstalk between cardiomyocyte calcium and inflammasome signaling pathways in atrial fibrillation.
Abstract Atrial fibrillation (AF) is the most frequent arrhythmia in adults. The prevalence and incidence of AF is going to increase substantially over the next few decades. Because AF increases the risk of stroke, heart failure, dementia, and others, it severely impacts the quality of life, morbidity, and mortality. Although the pathogenesis of AF is multifaceted and complex, focal ectopic activity and reentry are considered as the fundamental proarrhythmic mechanisms underlying AF development. Over the past 2 decades, large amount of evidence points to the key role of intracellular Ca2+ dysregulation in both ini...
Source: Pflugers Archiv : European Journal of Physiology - January 28, 2021 Category: Physiology Authors: Wang X, Chen X, Dobrev D, Li N Tags: Pflugers Arch Source Type: research

Short high ‐fat diet interferes with the physiological maturation of the late adolescent mouse heart
This study suggests that even a short period of high fat intake during late adolescence hinders maturation of the heart and causes physiological changes that may have an impact on the cardiac health in adulthood. AbstractDietary fats are essential for cardiac function. The metabolites of fats known as fatty acids provide most of the energy for cardiac tissue, serve as building blocks for membranes and regulate important signaling cascades. Despite their importance, excess fat intake can cause cardiac dysfunction. The detrimental effects of high ‐fat diet (HFD) on cardiac health are widely investigated in long‐term stud...
Source: Physiological Reports - July 7, 2020 Category: Physiology Authors: Heidi Hynynen, Maija Mutikainen, Nikolay Naumenko, Anastasia Shakirzyanova, Tomi Tuomainen, Pasi Tavi Tags: ORIGINAL RESEARCH Source Type: research

Optimization of a Rhabdomyolysis Model in Mice With Exertional Heat Stroke Mouse Model of EHS-Rhabdomyolysis
In conclusion, we made improvements to a stable EHS-induced RM animal model to truly reflect the clinical characteristics of EHS patients. This new model should be helpful in the further study of RM pathogenesis.
Source: Frontiers in Physiology - June 15, 2020 Category: Physiology Source Type: research

Pterostilbene improves cardiac function in a rat model of right heart failure through modulation of calcium handling proteins and oxidative stress
This study explored the effect of pterostilbene (PTS) complexed with hydroxypropyl- β-cyclodextrin (HPβCD) on right heart function, glutathione and glutaredoxin systems, and the expression of redox-sensitive proteins involved with regulation calcium levels in the experimental model of pulmonary arterial hypertension (PAH) induced by monocrotaline (MCT). After 7 days of PAH induct ion, rats received daily doses of the PTS:HPβCD complex (corresponding to 25, 50, or 100 mg·kg−1 of PTS) or vehicle (control group, CTR0) (an aqueous solution containing HPβCD; CTR0 and MCT0 (MCT group that did not receive PTS treatment)) v...
Source: Applied Physiology, Nutrition, and Metabolism - March 18, 2020 Category: Physiology Authors: Denise Lacerda Patrick T ürck Cristina Campos-Carraro Alexandre Hickmann Vanessa Ortiz Sara Bianchi Adriane Bell ó-Klein Alexandre Luz de Castro Valquiria Linck Bassani Alex Sander da Rosa Araujo Source Type: research

Influence of dual ‐specificity protein phosphatase 5 on mechanical properties of rat cerebral and renal arterioles
In this study, we found that KO ofDusp5 did not alter body weights, kidney and brain weights, plasma glucose, and HbA1C levels. The expression of pERK is higher in the nucleus of primary VSMC isolated fromDusp5 KO rats.Dusp5 KO rats exhibited eutrophic vascular hypotrophy with smaller intracerebral parenchymal arterioles and renal interlobular arterioles without changing the wall ‐to‐lumen ratios. These arterioles fromDusp5 KO rats displayed higher myogenic tones, better distensibility, greater compliance, and less stiffness compared with arterioles from WT control rats. VSMC ofDusp5 KO rats exhibited a stronger contra...
Source: Physiological Reports - January 19, 2020 Category: Physiology Authors: Huawei Zhang, Chao Zhang, Yedan Liu, Wenjun Gao, Shaoxun Wang, Xing Fang, Ya Guo, Man Li, Ruen Liu, Richard J. Roman, Peng Sun, Fan Fan Tags: ORIGINAL RESEARCH Source Type: research