evaluation of association of adra2a rs553668 and ace i/d gene polymorphisms with obesity traits in the setapak population, malaysia
نویسندگان
چکیده
background α-adrenergic receptor 2a (adra2a) and angiotensin-converting enzyme (ace) genes have been variably associated with obesity and its related phenotypes in different populations worldwide. objectives this cross-sectional study aims to investigate the association of adrenergic receptor α2a (adra2a) rs553668 and angiotensin-converting enzyme (ace) i/d single nucleotide polymorphisms (snps) with obesity traits (body mass index-bmi; waist-hip ratio-whr; total body fat percentage - tbf) in a malaysian population. materials and methods demographic and clinical variables were initially collected from 230 subjects via convenience sampling among residents and workers in setapak, malaysia, but in the end only 214 multi-ethnic malaysians (99 males; 45 malays, 116 ethnic chinese, and 53 ethnic indians) were available for statistical analysis. genotyping was performed by polymerase chain reaction using dna extracted from mouthwash samples. results the overall minor allele frequencies (mafs) for adra2a rs553668 and ace i/d were 0.55 and 0.56, respectively. allele distribution of ace i/d was significantly associated with ethnicity and whr class. logistic regression analysis showed that subjects with the ace ii genotype and i allele were, respectively, 2.15 and 1.55 times more likely to be centrally obese, but when adjusted for age and ethnicity, this association was abolished. covariate analysis controlling for age, gender, and ethnicity also showed similar results, where subjects carrying the ii genotype or i allele did not have significantly higher whr. combinatory genotype and allele analysis for adra2a rs553668 and ace i/d showed that subjects with both adra2a rs553668 gg and ace i/d ii genotypes had significant lowest whr compared to other genotype combinations. conclusions the ace ii genotype might be a protective factor against central adiposity risk among the malaysian population when in combination with the adra2a rs553668 gg genotype.
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عنوان ژورنال:
iranian red crescent medical journalجلد ۱۸، شماره ۲، صفحات ۰-۰
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