نتایج جستجو برای: volume contraction
تعداد نتایج: 369522 فیلتر نتایج به سال:
Intense exercise and insulin each increases total limb blood flow and recruits muscle capillaries, presumably to facilitate nutrient exchange. Whether mixed meals or light exercise likewise recruits capillaries is unknown. We fed 18 (9 M, 9 F) healthy volunteers a 480-kcal liquid mixed meal. Plasma glucose, insulin, brachial artery flow, and forearm muscle microvascular blood volume were measur...
BACKGROUND Angiotensin-(1-9) [Ang-(1-9)] is a novel peptide of the counter-regulatory axis of the renin-angiotensin-aldosterone system previously demonstrated to have therapeutic potential in hypertensive cardiomyopathy when administered via osmotic mini-pump. Here, we investigate whether gene transfer of Ang-(1-9) is cardioprotective in a murine model of myocardial infarction (MI). OBJECTIVE...
Objective(s) Achillea genius is widely used in traditional medicine for gastrointestinal disorders. The aim of this study was to investigate the effects of aqueous-ethanol extract of Achillea wilhelmsii on rat’s gastric motility in basal and vagal stimulated conditions. Materials and Methods Twenty four Wistar rats were randomly divided into two groups: control and test. The extract was prep...
The transverse tubular (t)-system of skeletal muscle couples sarcolemmal electrical excitation with contraction deep within the fibre. Exercise, pathology and the composition of the extracellular fluid (ECF) can alter t-system volume (t-volume). T-volume changes are thought to contribute to fatigue, rhabdomyolysis and disruption of excitation-contraction coupling. However, mechanisms that under...
The early and late alterations in left ventricular function which follow a change in contraction frequency were assessed in 10 conscious dogs. Chronically implanted pulse-transit ultrasonic dimension transducers were wed to measure the dynamic geometry of the left ventricle and a high-fidelity micromanometer was employed to measmre left ventricular pressure. The heart was paced from the atrium ...
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