Document Detail


The red blood cell participates in regulation of the circulation by producing and releasing epoxyeicosatrienoic acids.
MedLine Citation:
PMID:  22178722     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Red blood cells (RBCs) have an important function in regulation of the circulation by producing and releasing epoxyeicosatrienoic acids (EETs) in response to a low O₂ environment such as encountered in the cardiac microcirculation during exercise. RBCs, in their role as sensors of low pO₂, release ATP and critical lipid mediators, the EETs. Both cis- and trans-EETs are synthesized and stored in RBCs and are hydrolyzed by soluble epoxide hydrolases (sEH). The trans-EETs differ from cis-EETs in their higher vascular potencies and more rapid metabolism by sEH. Thus, inhibition of sEH results in greater trans-EET levels and increased positive vascular effects of trans-EETs vs cis-EETs. The trans-EETs are responsible for a significant decline in the elevated blood pressure in the spontaneously hypertensive rat on treatment with a sEH inhibitor to raise EET levels. We predict that trans-EETs and cis-EETs will occupy important therapeutic roles in a broad spectrum of diseases and abnormal physiological conditions such as that resulting from high salt intake and hypertension.
Authors:
Houli Jiang; Gail D Anderson; John C McGiff
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Review     Date:  2011-12-08
Journal Detail:
Title:  Prostaglandins & other lipid mediators     Volume:  98     ISSN:  1098-8823     ISO Abbreviation:  Prostaglandins Other Lipid Mediat.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-07-31     Completed Date:  2013-01-08     Revised Date:  2014-02-12    
Medline Journal Info:
Nlm Unique ID:  9808648     Medline TA:  Prostaglandins Other Lipid Mediat     Country:  United States    
Other Details:
Languages:  eng     Pagination:  91-3     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Pressure / physiology
Eicosanoids / biosynthesis*,  chemistry,  secretion*
Erythrocytes / metabolism*
Humans
Hydrolysis
Hypertension / physiopathology
Microcirculation / physiology*
Grant Support
ID/Acronym/Agency:
HL34300/HL/NHLBI NIH HHS; P01 HL034300/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Eicosanoids

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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