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https://www.readbyqxmd.com/read/28678930/ruthenium-complex-improves-the-endothelial-function-in-aortic-rings-from-hypertensive-rats
#1
Izabela Pereira Vatanabe, Carla Nascimento Dos Santos Rodrigues, Tereza Cristina Buzinari, Thiago Francisco de Moraes, Roberto Santana da Silva, Gerson Jhonatan Rodrigues
Background: The endothelium is a monolayer of cells that extends on the vascular inner surface, responsible for the modulation of vascular tone. By means of the release of nitric oxide (NO), the endothelium has an important protective function against cardiovascular diseases. Objective: Verify if cis- [Ru(bpy)2(NO2)(NO)](PF6)2 (BPY) improves endothelial function and the sensibility of conductance (aorta) and resistance (coronary) to vascular relaxation induced by BPY...
June 29, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28538761/effects-of-continuous-and-accumulated-exercise-on-endothelial-function-in-rat-aorta
#2
Juliana Edwiges Martinez, Elane de Fátima Taipeiro, Agnaldo Bruno Chies
Background: The practice of exercise in short bouts repeated throughout the day may be an alternative strategy to lift people out of physical inactivity. Objective: to evaluate if accumulated exercise, as occurs in continuous exercise training, improve endothelial function in rat aorta. Methods: Wistar male rats were divided into three groups: continuous exercise (CEx, 1 hour on the treadmill) or accumulated exercise (AEx, 4 bouts of 15 minutes / day) for 5 days/week for 8 weeks, or sedentary (SED)...
April 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/25626762/chronic-stress-improves-no-and-ca2-flux-dependent-vascular-function-a-pharmacological-study
#3
Thiago Bruder-Nascimento, Dijon Henrique Salome Campos
Background: Stress is associated with cardiovascular diseases. Objective: This study aimed at assessing whether chronic stress induces vascular alterations, and whether these modulations are nitric oxide (NO) and Ca2+ dependent. Methods: Wistar rats, 30 days of age, were separated into 2 groups: control (C) and Stress (St). Chronic stress consisted of immobilization for 1 hour/day, 5 days/week, 15 weeks. Systolic blood pressure was assessed. Vascular studies on aortic rings were performed. Concentration-effect curves were built for noradrenaline, in the presence of L-NAME or prazosin, acetylcholine, sodium nitroprusside and KCl...
January 23, 2015: Arquivos Brasileiros de Cardiologia
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