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        Role of the endothelium and COX-1 in prostacyclin generation by whole vessels stimulated with different agonists

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        1vol10issue4abst069p.pdf (PDF, 20Kb)
        Author
        Alyamanil, Malak
        Kirkby, N.S.
        MacKenzie, Louise Susan
        Lundberg, M.H.
        Warner, T.D.
        Mitchell, J.A.
        Attention
        2299/14728
        Abstract
        Prostacyclin is an important cardioprotective hormone produced by the vascular wall, whose synthesis is dependent on cyclo-oxygenase (COX) enzymes. In healthy vessels the endothelium is thought to be the main site of prostacyclin release (Moncada et al 1977). Two isoforms of COX exist, and we have recently published data demonstrating that it is COX-1 rather than COX-2 that drives the production of prostacyclin in mouse aorta (Kirkby et al 2012). In this study we aimed to extend these observations by investigating what proportion of the COX-1 driven aortic prostacyclin production that comes from the endothelium versus the rest of the vessel wall (smooth muscle layers and adventitia). To do this, we explored how removal of the endothelium would influence the ability of aortic tissue to release prostacyclin in response to a range of agonists that are known to activate the endothelium and the vessel wall
        Publication date
        2012
        Published in
        pA2 online
        Other links
        http://hdl.handle.net/2299/14728
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