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Cytochrome P450 epoxygenases as EDHF synthase(s).

机译:细胞色素P450环氧酶作为EDHF合酶。

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摘要

The metabolism of arachidonic acid by cytochrome P450 (CYP) epoxygenases generates epoxyeicosatrienoic acids (EETs) which affect numerous cellular process including Ca(2+) signaling and the activity of Ca(2+)-dependent K(+) channels. The expression of the CYP epoxygenase(s) that generate EETs in endothelial cells is not constitutive but is determined by a number of physical (fluid shear stress and cyclic stretch) and pharmacological stimuli which also affect responses attributed to an endothelium-derived hyperpolarizing factor (EDHF). This review summarizes the role played by EETs, and the enzymes that generate and metabolize them, in EDHF-mediated responses.
机译:花生四烯酸的细胞色素P450(CYP)环氧酶的代谢产生环氧二十碳三烯酸(EETs),影响包括Ca(2+)信号和Ca(2+)依赖K(+)通道的活动的许多细胞过程。在内皮细胞中产生EET的CYP环氧酶的表达不是组成性的,而是由多种物理(流体剪切应力和循环拉伸)和药理刺激决定的,这些刺激也影响归因于内皮的超极化因子的反应( EDHF)。这篇综述总结了EET以及在EDHF介导的反应中所发挥的酶以及产生和代谢它们的酶。

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