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endothelium-derived |
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endothelium-derived derived from endothelium. endothelium-derived vasoactive substances substances produced by or released from endothelial cells which regulate vascular smooth muscle or other regulatory mechanism; include prostacyclin and other prostanoids, angiotensin, and relaxing or constricting factors. endothelium-derived constricting factor vasoconstrictive peptides isolated from vascular endothelial cells which are actively vasoconstrictive; endothelin (ET) is the most active of them. endothelium-derived relaxing factor several are known; nitrous oxide is one of the chief mediators, probably derived from l-arginine. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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