Document Detail


Genetic polymorphism of paraoxonase and the risk of coronary heart disease.
MedLine Citation:
PMID:  9194756     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Recent studies have implicated paraoxonase, an HDL-associated enzyme, in providing protection against LDL oxidation, thus affecting the risk of coronary heart disease (CHD) in the general population. In this study, we evaluated the distribution of a biallelic PON polymorphism at codon 192 (A and B alleles) and its relationship with plasma lipids and CHD in two racial groups comprising Asian Indians and Chinese from Singapore. The frequency of the B allele was significantly higher in Chinese control subjects than in Indian control subjects (0.58 versus 0.33; P < .0001). With the exception of a marginal effect on apolipoprotein A-I levels in Indians, no other significant association was observed between the PON polymorphism and quantitative lipid traits in either racial group. However, there was a race-specific association of the B allele with CHD in Indians but not in Chinese. The Indian CHD patients had a significantly higher frequency of the B allele than control subjects (.43 versus .33; P = .014). The age- and sex-adjusted odds ratio for developing CHD with the B allele (BB+AB genotypes) was 2.01 (95% CI, 1.17 to 3.45; P = .011) compared with the A allele (AA genotype). When the Indian patients were stratified into subgroups, the association remained significant in nondiabetic patients (odds ratio, 2.29; P = .008), and it became stronger in patients with myocardial infarction (odds ratio, 2.94; P = .004) than in patients without myocardial infarction (odds ratio, 1.11; P = .76). These data indicate that a common polymorphism in the PON gene is an independent risk factor for CHD in populations with white ancestry.
Authors:
D K Sanghera; N Saha; C E Aston; M I Kamboh
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Arteriosclerosis, thrombosis, and vascular biology     Volume:  17     ISSN:  1079-5642     ISO Abbreviation:  Arterioscler. Thromb. Vasc. Biol.     Publication Date:  1997 Jun 
Date Detail:
Created Date:  1997-07-10     Completed Date:  1997-07-10     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9505803     Medline TA:  Arterioscler Thromb Vasc Biol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1067-73     Citation Subset:  IM    
Affiliation:
Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, PA 15261, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aryldialkylphosphatase
China / ethnology
Coronary Disease / genetics*
Esterases / genetics*
Female
Gene Frequency
Humans
India / ethnology
Male
Middle Aged
Odds Ratio
Polymorphism, Genetic
Regression Analysis
Risk Factors
Grant Support
ID/Acronym/Agency:
HL-44672/HL/NHLBI NIH HHS; HL-49074/HL/NHLBI NIH HHS; HL-52611/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
EC 3.1.-/Esterases; EC 3.1.8.1/Aryldialkylphosphatase

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


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