L-arginine improves endothelium-dependent vasodilation in hypercholesterolemic humans.
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منابع مشابه
L-arginine improves endothelium-dependent vasodilation in hypercholesterolemic humans.
Endothelium-dependent vasodilation is impaired in hypercholesterolemia, even before the development of atherosclerosis. The purpose of this study was to determine whether infusion of L-arginine, the precursor of the endothelium-derived relaxing factor, nitric oxide, improves endothelium-dependent vasodilation in hypercholesterolemic humans. Vascular reactivity was measured in the forearm resist...
متن کاملL-arginine augments endothelium-dependent vasodilation in cholesterol-fed rabbits.
Evidence exists that an endothelium-derived relaxing factor is nitric oxide and that L-arginine is the precursor for the synthesis of nitric oxide in vitro. Whether exogenous L-arginine contributes to the modulation of vascular smooth muscle tone in vivo is still controversial. In hypercholesterolemia, resistance vessels do not relax normally in response to pharmacological stimuli that release ...
متن کاملOral L-arginine improves endothelium-dependent dilation in hypercholesterolemic young adults.
In hypercholesterolemic rabbits, oral L-arginine (the substrate for endothelium derived nitric oxide) attenuates endothelial dysfunction and atheroma formation, but the effect in hypercholesterolemic humans is unknown. Using high resolution external ultrasound, we studied arterial physiology in 27 hypercholesterolemic subjects aged 29+/-5 (19-40) years, with known endothelial dysfunction and LD...
متن کاملDietary L-arginine supplementation normalizes platelet aggregation in hypercholesterolemic humans.
OBJECTIVES The present study was designed to test the hypothesis that long-term dietary supplementation with the nitric oxide precursor L-arginine would enhance vascular or platelet-derived nitric oxide activity, or both, and thereby inhibit platelet reactivity in hypercholesterolemic humans. BACKGROUND We have shown that reduced vascular activity of nitric oxide in hypercholesterolemic rabbi...
متن کاملAcute hyperglycemia attenuates endothelium-dependent vasodilation in humans in vivo.
BACKGROUND Endothelial function is impaired in patients with diabetes mellitus. However, the factors contributing to this defect are currently unknown. Hyperglycemia attenuates endothelium-dependent relaxation in normal rabbit arteries in vitro and rat arterioles in vivo. Accordingly, this study examined the effect of acute hyperglycemia on endothelium-dependent vasodilation in nondiabetic huma...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1992
ISSN: 0021-9738
DOI: 10.1172/jci115987