Linked Life Data

20826180

Source:http://linkedlifedata.com/resource/pubmed/id/20826180

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-11-1
pubmed:abstractText
Nitric oxide (NO) exerts a variety of biological actions under both physiological and pathological conditions. NO is synthesized by three distinct NO synthase (NOS) isoforms, including neuronal (nNOS), inducible (iNOS), and endothelial NOS (eNOS), all of which are expressed in the human cardiovascular system. The roles of endogenous NO in the cardiovascular system have been investigated in pharmacological studies with NOS inhibitors and in studies with mice that lack each NOS isoform. However, in the pharmacological studies, the specificity of the NOS inhibitors continues to be an issue of debate, while in each of the NOS isoform-deficient mice, a compensatory mechanism by other NOSs that are not genetically deleted is apparently involved. Thus, the authentic roles of endogenous NO are still poorly understood. To address this issue, genetically engineered mice in which all three NOS genes are completely disrupted have been developed. In the triply n/i/eNOS(-/-) mice, but not in singly eNOS(-/-) mice, several cardiovascular phenotypes, including arteriosclerosis/atherosclerosis, myocardial infarction, and dyslipidemia, have been described. Furthermore, by using the triply NOS(-/-) mice, the roles of the NOS system in endothelium-dependent hyperpolarization and stain-induced NO production have been elucidated. These results provide novel insight into the cardiovascular role of the endogenous NO/NOS system at the molecular level. This review, based on the research outcomes obtained from the triply NOS(-/-) genetic model, summarizes the latest knowledge of the pathophysiological relevance of NO signaling in the cardiovascular system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1879-016X
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
128
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
499-508
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Pathophysiological relevance of NO signaling in the cardiovascular system: novel insight from mice lacking all NO synthases.
pubmed:affiliation
Department of Pharmacology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0215, Japan. tsutsui@med.u-ryukyu.ac.jp
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't