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Angiology

Effects of picotamide on release of endothelin-1, thromboxane and prostacycline after treadmill stress in patients with peripheral artery disease.


PMID 9822043

Abstract

To assess the effects of picotamide, an antithromboxane receptor and antithromboxane synthase drug, on vascular function and endothelin-1 release, 20 patients with peripheral arterial disease, without hypertension or diabetes mellitus, receiving placebo and picotamide (900 mg/day) were studied. The modifications of vascular parameters were evaluated by arterial distensibility index and postischemic hyperemia test (postischemic perfusion index and recovery time). Endothelin-1, prostacycline, and thromboxane B2 were determined under resting conditions and after treadmill test. Picotamide treatment caused a decrease of resting thromboxane B2 and endothelin-1 concentrations, produced an improvement of the vascular function as seen by the increase of vascular parameters reported, and attenuated the ischemic treadmill-induced increase of thromboxane B2, but not of endothelin-1. These data confirm that the picotamide improved vascular flow by the reduction of thromboxane-mediated effects, reduced resting endothelin-1 levels, but did not attenuate endothelin-1 concentrations induced by the treadmill stress.

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P8477
Picotamide
C21H20N4O3