Results 201 to 210 of about 112,017 (259)
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Testosterone and vascular reactivity
Clinical Science, 2006The mechanisms by which male sex hormones modulate cardiovascular function are a subject of contemporary interest. Several lines of evidence indicate that androgens can exert acute vasorelaxing effects. On the other hand, chronic exposure to androgens has been shown to promote increases in blood pressure and compromise renal function.
Radu, Iliescu, Jane F, Reckelhoff
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Serotonin and vascular reactivity
Pharmacological Research Communications, 1985Serotonin causes contraction of the vascular smooth muscle cells in most blood vessels studied in vitro. This contraction is mainly due to activation of S2-serotonergic receptors. The monoamine can cause relaxation through activation of serotonergic receptors, different from the S2-serotonergic receptor and located on endothelial cells, or through an ...
Vanhoutte, PM +2 more
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Glucocorticoids and Vascular Reactivity
Current Vascular Pharmacology, 2004Corticosteroid hormones play an important role in the control of vascular smooth muscle tone by their permissive effects in potentiating vasoactive responses to catecholamines through glucocorticoid receptors. Increased cortisol response has been associated with an increase in arterial contractile sensitivity to norepinephrine and vascular resistance ...
Shumei, Yang, Lubo, Zhang
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Vascular reactivity and thiazolidinediones
The American Journal of Medicine, 2003Endothelial dysfunction is a critical factor in the development of vascular disease in patients with diabetes mellitus. Maintenance of the vascular tone and luminal diameter of a blood vessel is dependent on the net balance of vasoconstrictor and vasodilator forces. In both diabetes and obesity, vascular reactivity is abnormal.
Paresh, Dandona +2 more
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Antihistamines and vascular reactivity
American Journal of Physiology-Legacy Content, 1965The purpose of the present set of experiments was to determine the contribution of the dilator principle, histamine, to peripheral vascular homeostasis. This was done by means of direct microscopic observation of the mesocecal microcirculation through the use of antihistamines.
B M, Altura, B W, Zweifach
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The vascular reactivity of melatonin
General Pharmacology: The Vascular System, 19981. Melatonin receptors have been located in the vasculature. The present study investigates the hypothesis that melatonin can alter vascular contraction. 2. Helical strips of endothelium-intact rat thoracic aorta and endothelium-denuded mesenteric and endothelium-denuded caudal arteries were mounted in isolated tissue baths for measurement of isometric
K K, Monroe, S W, Watts
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Vascular reactivity in preeclampsia
Seminars in Perinatology, 1999It has long been known that vascular reactivity is altered in preeclamptic patients compared with normal pregnant women. This change even occurs weeks earlier than any clinical manifestation of the disease. Many investigators believe that the conditions for the development of preeclampsia are set as early as the first trimester.
Y, Vedernikov, G R, Saade, R E, Garfield
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The American Journal of Cardiology, 1999
Endothelial dysfunction appears to be an integral aspect of the insulin resistance syndrome, independently of hyperglycemia. The ability of insulin to cause endothelium-derived nitric oxide (NO)-dependent vasodilation amplifies its overall effect of stimulating skeletal muscle glucose uptake and modulating vascular tone.
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Endothelial dysfunction appears to be an integral aspect of the insulin resistance syndrome, independently of hyperglycemia. The ability of insulin to cause endothelium-derived nitric oxide (NO)-dependent vasodilation amplifies its overall effect of stimulating skeletal muscle glucose uptake and modulating vascular tone.
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Vascular reactivity in patients with peripheral vascular disease
The American Journal of Cardiology, 1995Noninvasive techniques have been used to demonstrate a specific pattern of impaired vasoactive response in the normal brachial artery of patients with clinical atherosclerosis. This is a physiologic reflection of the systemic nature of atherosclerosis and may be useful as a marker for identifying patients with preclinical atherosclerotic disease.
L M, Harris +8 more
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Genetic determinants of vascular reactivity
Current Hypertension Reports, 2002Blood pressure is controlled by a complex combination of processes that influence cardiac output and peripheral vascular resistance. Multiple genes potentially influence each parameter involved in the control of blood pressure, and individuals with the same blood pressor level do not necessarily have the same genotype at relevant loci, nor do ...
Daniel, Henrion +4 more
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