Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2010-11-15
pubmed:abstractText
Increased oxidative stress has been associated with the pathogenesis of chronic cardiac hypertrophy and heart failure. Since allicin suppresses oxidative stress in vitro and in vivo, we hypothesized that allicin would inhibit cardiac hypertrophy through blocking oxidative stress-dependent signaling. We examined this hypothesis using primary cultured cardiac myocytes and fibroblasts and one well-established animal model of cardiac hypertrophy. Our results showed that allicin markedly inhibited hypertrophic responses induced by Ang II or pressure overload. The increased reactive oxygen species (ROS) generation and NADPH oxidase activity were significantly suppressed by allicin. Our further investigation revealed this inhibitory effect on cardiac hypertrophy was mediated by blocking the activation of ROS-dependent ERK1/2, JNK1/2 and AKT signaling pathways. Additional experiments demonstrated allicin abrogated inflammation and fibrosis by blocking the activation of nuclear factor-?B and Smad 2/3 signaling, respectively. The combination of these effects resulted in preserved cardiac function in response to cardiac stimuli. Consequently, these findings indicated that allicin protected cardiac function and prevented the development of cardiac hypertrophy through ROS-dependent mechanism involving multiple intracellular signaling.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1873-4847
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1238-50
pubmed:meshHeading
pubmed-meshheading:20185286-Animals, pubmed-meshheading:20185286-Antioxidants, pubmed-meshheading:20185286-Cardiomegaly, pubmed-meshheading:20185286-Cells, Cultured, pubmed-meshheading:20185286-Disease Models, Animal, pubmed-meshheading:20185286-Fibroblasts, pubmed-meshheading:20185286-Fibrosis, pubmed-meshheading:20185286-Male, pubmed-meshheading:20185286-Mice, pubmed-meshheading:20185286-Mice, Inbred C57BL, pubmed-meshheading:20185286-Myocytes, Cardiac, pubmed-meshheading:20185286-NF-kappa B, pubmed-meshheading:20185286-Oxidative Stress, pubmed-meshheading:20185286-Phosphorylation, pubmed-meshheading:20185286-Rats, pubmed-meshheading:20185286-Rats, Sprague-Dawley, pubmed-meshheading:20185286-Reactive Oxygen Species, pubmed-meshheading:20185286-Signal Transduction, pubmed-meshheading:20185286-Sulfinic Acids
pubmed:year
2010
pubmed:articleTitle
Allicin protects against cardiac hypertrophy and fibrosis via attenuating reactive oxygen species-dependent signaling pathways.
pubmed:affiliation
Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, 510080 Guangzhou, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't