Filtered By:
Specialty: Physiology
Condition: Metabolic Syndrome

This page shows you your search results in order of relevance.

Order by Relevance | Date

Total 97 results found since Jan 2013.

Attenuated Cerebral Vasodilatory Capacity in Response to Hypercapnia in College‐aged African Americans
In conclusion, these data indicate that AA have attenuated cerebral vascular capacity to hypercapnia when compared with CA.This article is protected by copyright. All rights reserved
Source: Experimental Physiology - October 18, 2014 Category: Physiology Authors: Chansol Hurr, Kiyoung Kim, Michelle L. Harrison, R. Matthew Brothers Tags: Research Paper Source Type: research

Metabolic syndrome impairs reactivity and wall mechanics of cerebral resistance arteries in obese zucker rats.
This study determined the structural and functional changes to the middle cerebral arteries (MCA) during the progression of MetS, and the effects of chronic pharmacological interventions on mitigating vascular alterations in obese Zucker rats (OZR), a translationally-relevant model of MetS. The reactivity and wall mechanics of ex vivo pressurized MCA from lean Zucker rats (LZR) and OZR was determined at 7-8, 12-13 and 16-17 weeks of age under control conditions and following chronic treatment with pharmacological agents targeting specific systemic pathologies. With increasing age, control OZR demonstrated reduced nitric ox...
Source: American Journal of Physiology. Heart and Circulatory Physiology - October 16, 2015 Category: Physiology Authors: Brooks SD, DeVallance E, d'Audiffret AC, Frisbee SJ, Tabone LE, Shrader CD, Frisbee JC, Chantler PD Tags: Am J Physiol Heart Circ Physiol Source Type: research

Cardiometabolic risk factors predict cerebrovascular health in older adults: results from the Brain in Motion study
Abstract Aging and physical inactivity are associated with an increased risk of developing metabolic syndrome (MetS). With the rising prevalence of MetS, it is important to determine the extent to which it affects cerebrovascular health. The primary purpose of this report is to examine the impact of MetS on cerebrovascular health (resting cerebral blood flow (CBF) peak velocity (), cerebrovascular conductance (CVC), and CBF responses to hypercapnia) in healthy older adults with normal cognition. A secondary goal was to examine the influence of apolipoprotein E (APOE) ε4 expression on these indices. In a sample of 258 heal...
Source: Physiological Reports - April 24, 2016 Category: Physiology Authors: Amanda V. Tyndall, Laurie Argourd, Tolulope T. Sajobi, Margie H. Davenport, Scott C. Forbes, Stephanie J. Gill, Jillian S. Parboosingh, Todd J. Anderson, Ben J. Wilson, Eric E. Smith, David B. Hogan, Michael D. Hill, Marc J. Poulin Tags: Original Research Source Type: research

Contribution of Maladaptive Adipose Tissue Expansion to Development of Cardiovascular Disease.
Authors: Jia G, Jia Y, Sowers JR Abstract The overweight and obesity epidemic has led to an increase in the metabolic syndrome and associated cardiovascular disease (CVD). These abnormalities include insulin resistance, type 2 diabetes mellitus, vascular stiffness, hypertension, stroke, and coronary heart disease. Visceral white adipocyte tissue (WAT) expansion and associated fibrosis/stiffness of WAT promote insulin resistance and CVD through increases in proinflammatory adipokines, oxidative stress, activation of renin-angiotensin-aldosterone system, dysregulation of adipocyte apoptosis and autophagy, dysfunction...
Source: Comprehensive Physiology - February 1, 2017 Category: Physiology Tags: Compr Physiol Source Type: research

Aerobic interval training reduces vascular resistances during submaximal exercise in obese metabolic syndrome individuals
ConclusionsThe data suggest that intense aerobic interval training improves hemodynamics during submaximal exercise in MetS patients. Specifically, it reduces diastolic blood pressure, systemic vascular resistances, and the double product. The reduction in double product, suggests decreased myocardial oxygen demands which could prevent the occurrence of adverse cardiovascular events during exercise in this population.Clinicaltrials.gov identifierNCT03019796.
Source: European Journal of Applied Physiology - August 12, 2017 Category: Physiology Source Type: research

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

The contribution of chymase-dependent formation of AngII to cardiac dysfunction in metabolic syndrome of young rats: roles of fructose and EETs.
In conclusions, HFD-driven adverse chymase/AngII/AT1R/Nox/superoxide signaling in young rats was prevented by inhibition of sEH via at least in part, an EET-mediated stabilization of mast cells, highlighting chymase and sEH as therapeutic targets during treatment of MetS. PMID: 32167781 [PubMed - as supplied by publisher]
Source: American Journal of Physiology. Heart and Circulatory Physiology - March 12, 2020 Category: Physiology Authors: Froogh G, Kandhi S, Duvvi R, Le Y, Weng Z, Alruwaili N, Ashe JO, Sun D, Huang A Tags: Am J Physiol Heart Circ Physiol Source Type: research

Effect of Combined Mental Task and Metaboreflex Activation on Hemodynamics and Cerebral Oxygenation in Patients With Metabolic Syndrome
Conclusion: It was concluded that (1) patients with MS showed hemodynamic dysregulation during the metaboreflex, with exaggerated vasoconstriction and that (2) as compared to CTL, MS patients had reduced capacity to enhance COX when an MT superimposed the metaboreflex.
Source: Frontiers in Physiology - May 13, 2020 Category: Physiology Source Type: research

Multi-Omic Approaches to Identify Genetic Factors in Metabolic Syndrome
Compr Physiol. 2021 Dec 29;12(1):3045-3084. doi: 10.1002/cphy.c210010.ABSTRACTMetabolic syndrome (MetS) is a highly heritable disease and a major public health burden worldwide. MetS diagnosis criteria are met by the simultaneous presence of any three of the following: high triglycerides, low HDL/high LDL cholesterol, insulin resistance, hypertension, and central obesity. These diseases act synergistically in people suffering from MetS and dramatically increase risk of morbidity and mortality due to stroke and cardiovascular disease, as well as certain cancers. Each of these component features is itself a complex disease, ...
Source: Comprehensive Physiology - December 29, 2021 Category: Physiology Authors: Karen C Clark Anne E Kwitek Source Type: research