| The role of 20-HETE in androgen-mediated hypertension. | |
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MedLine Citation:
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PMID: 21722750 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Androgen plays an important role in blood pressure regulation. Epidemiological studies have shown that men have a higher prevalence for developing hypertension than aged-matched, premenopausal women. Interestingly, postmenopausal women and women with polycystic ovary syndrome, both of which have increased endogenous androgen production, have elevated risks for hypertension suggesting that androgen may contribute to its development. Studies from our laboratory and others have provided substantial evidence that 20-hydroxyeicosatetraenoic acid (20-HETE) mediates the hypertension seen in rodents treated with androgen. 20-HETE is the cytochrome P450 (CYP)-derived ω-hydroxylated metabolite of arachidonic acid. 20-HETE plays a complex role in blood pressure regulation. In the kidney tubules, 20-HETE decreases blood pressure by promoting natriuresis, while in the microvasculature it has a pressor effect. In the microcirculation, 20-HETE participates in the regulation of vascular tone by sensitizing the smooth muscle cells to constrictor stimuli and contributes to myogenic, mitogenic and angiogenic responses. In addition, 20-HETE acts on the endothelium to promote endothelial dysfunction and endothelial activation. Recently, we have demonstrated that 20-HETE induces endothelial ACE thus setting forth a potential feed forward mechanism through activation of the renin-angiotensin-aldosterone system. In this review, we will discuss the pro-hypertensive effects of 20-HETE and its role in androgen-induced vascular dysfunction and hypertension. |
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Authors:
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Cheng-Chia Wu; Michal Laniado Schwartzman |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-22 |
Journal Detail:
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Title: Prostaglandins & other lipid mediators Volume: - ISSN: 1098-8823 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-7-4 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9808648 Medline TA: Prostaglandins Other Lipid Mediat Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011. Published by Elsevier Inc. |
Affiliation:
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Department of Pharmacology, New York Medical College, Valhalla, NY 10595, United States. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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