Document Detail

DNA polymorphisms of the apolipoprotein B gene are associated with obesity and serum lipids in healthy Indians in Singapore.
MedLine Citation:
PMID:  8275568     Owner:  NLM     Status:  MEDLINE    
Three DNA polymorphisms (Ins/Del, XbaI and EcoRI) of the apolipoprotein B gene and their influence on body-mass index, serum lipids and apolipoprotein levels were studied in 181 healthy Indians of both sexes (121 males and 60 females), aged between 17 and 71 years. The frequencies of X+ (XbaI) and Del (Ins/Del) of the signal peptide region in Indians were found to be significantly lower (0.17 and 0.11, respectively) compared to the frequencies in Caucasians (0.50 and 0.32, respectively) (P < 0.025). The frequency of E- (EcoRI) was similar to that in Caucasians (0.10 vs 0.15). A highly significant linkage disequilibrium was observed between the XbaI site and Ins/Del polymorphism of the apo B gene in this sample (X2 = 31.9, P < 0.001). The simultaneous presence of Del and X+ allele was significantly associated with higher body mass index (X2 = 11.43, P < 0.005), serum total cholesterol (X2 = 5.11; P < 0.025) and triglyceride (X2 = 6.42; P < 0.025) levels. Mean values of adjusted BMI and serum triglyceride levels were found to be 29.0 +/- 1.92 vs 23.7 +/- 0.67 (P < 0.025) and 278.0 +/- 60.78 vs 140.4 +/- 15.43 mg/dl (P < 0.05), respectively, in subjects with Del and X+ compared to others. The multiple regression tests showed that 3.3 and 5.8% of the total variability of BMI is explained by Ins/Del and XbaI polymorphism, respectively, in this sample (P = 0.06 and 0.02), while 3.8% of serum triglyceride levels was explained by Ins/Del polymorphism of the apo B gene (P = 0.04).(ABSTRACT TRUNCATED AT 250 WORDS)
N Saha; J S Tay; C K Heng; S E Humphries
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical genetics     Volume:  44     ISSN:  0009-9163     ISO Abbreviation:  Clin. Genet.     Publication Date:  1993 Sep 
Date Detail:
Created Date:  1994-02-09     Completed Date:  1994-02-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0253664     Medline TA:  Clin Genet     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  113-20     Citation Subset:  IM    
Department of Paediatrics, National University of Singapore.
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MeSH Terms
Analysis of Variance
Apolipoproteins B / genetics*
Blotting, Southern
Body Mass Index
Cholesterol / blood
DNA / analysis
Gene Frequency
India / ethnology
Linkage (Genetics)
Lipids / blood*
Middle Aged
Obesity / genetics*
Polymorphism, Genetic*
Regression Analysis
Triglycerides / blood
Reg. No./Substance:
0/Apolipoproteins B; 0/Lipids; 0/Triglycerides; 57-88-5/Cholesterol; 9007-49-2/DNA

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