Abstract:There is epidemiological evidence for a protective property of oestrogen on vasculature which may be linked to an ability to relax vascular smooth muscle [I]. 170 oestradiol was shown to relax rabbit aorta and coronary arteries [2,3] and dilate rat tail artery [4]. The biochemical target for this action is unclear, although effects on calcium flux have been implicated. Activation of protein kinase C increases vascular tone [5] and in isolated rat aorta, direct activation of protein kinase C by phorbol dibuty… Show more
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