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Urotensin II (U-II), originally identified as a fish neuropeptide, exerts a broad spectrum of biological functions and is considered to be the most potent vasoconstrictor in mammals. Recently the intense staining of U-II-like immunoreactivity within coronary atheroma and the effect of mitogenic in vascular smooth muscle cells (VSMCs) suggest that U-II is possibly a proatherogenic factor in the pathogenesis...
Urotensin-II (U-II), a cyclic peptide widely expressed in blood vessels, has diverse vascular actions that range from potent vasoconstriction to vasodilation. Although, U-II-induced vasodilation has been shown to be partially dependent on nitric oxide (NO), the involvement of vascular adventitia-derived NO, remains unknown. The present study aimed to elucidate the activation of U-II on l-arginine/NO...
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