Document Detail


Impact of Synergistic Polymorphisms in Adrenergic Receptor-Related Genes and Cardiovascular Events in Patients With Dilated Cardiomyopathy.
MedLine Citation:
PMID:  22664639     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background: Sustained cardiac adrenergic stimulation has been implicated in the progression of cardiovascular events in patients with dilated cardiomyopathy (DCM). Our group hypothesized that a combination of polymorphisms that result in increased synaptic norepinephrine release and enhanced receptor function would predispose patients with DCM to cardiovascular events. The effect of polymorphisms in adrenergic receptor-related genes on cardiovascular event-free survival in patients with idiopathic DCM was evaluated. Methods and Results: Genotyping at 3 loci (ADRB1 Ser49Gly and Arg389Gly, and NET T-182C) was performed in 83 patients with DCM. Patients were followed prospectively to the endpoint of cardiovascular events (mean follow-up, 45 months). Cardiovascular events were defined as cardiac death and emergent hospitalization as a result of congestive heart failure, arrhythmia, and cerebrovascular events. Analyses were conducted based on the number of predicted risk genotypes a patient carried. The ADRB1 Ser49 allele carrier, ADRB1 Arg389 allele carrier, and NET-182CC genotype were defined as the predicted risk genotypes. Cardiovascular event-free survival was compared based on the number of predicted risk genotypes. Cardiovascular event-free survival was significantly better in patients with fewer than 3 predicted risk genotypes than in those with 3 predicted risk genotypes. Conclusions: Genotyping at these 3 loci might be a useful approach for identification of patients with DCM at risk for cardiovascular events.
Authors:
Akiyoshi Ogimoto; Hideki Okayama; Takayuki Nagai; Jun Suzuki; Katsuji Inoue; Kazuhisa Nishimura; Yuji Shigematsu; Yasuharu Tabara; Tetsuro Miki; Jitsuo Higaki
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-12
Journal Detail:
Title:  Circulation journal : official journal of the Japanese Circulation Society     Volume:  -     ISSN:  1347-4820     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-6-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137683     Medline TA:  Circ J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine.
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