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Ramu P.,Jawaharlal Institute of Postgraduate Medical Education and Research JIPMER | Umamaheswaran G.,Jawaharlal Institute of Postgraduate Medical Education and Research JIPMER | Shewade D.,Jawaharlal Institute of Postgraduate Medical Education and Research JIPMER | Swaminathan R.,Jawaharlal Institute of Postgraduate Medical Education and Research JIPMER | And 2 more authors.
Indian Journal of Human Genetics | Year: 2010

Background: Essential hypertension is a complex genetic trait. Genetic variant of alpha adducin (ADD1) gene have been implicated as a risk factor for hypertension. Given its clinical significance, we investigated the association between ADD1 Gly460Trp gene polymorphism and essential hypertension in an Indian population. Further, a meta-analysis was carried out to estimate the risk of hypertension. Methods: In the current study, 432 hypertensive cases and 461 healthy controls were genotyped for the Gly460Trp ADD1 gene polymorphism. Genotyping was determined by real time PCR using Taqman assay. Multiple logistic regression analysis was used to detect the association between Gly460Trp polymorphism and hypertension. Results: No significant association was found in the genotype and allele distribution of Gly460Trp polymorphism with hypertension in our study. A total of 15 case-control studies were included in the meta-analysis. There was no evidence of the association of Gly460Trp polymorphism with hypertension in general or in any of the sub group. Conclusions: We found that the Gly460Trp polymorphism is not a risk factor for essential hypertension in a south Indian Tamilian population. However, the role of ADD1 polymorphism may not be excluded by a negative association study. Further, large and rigorous case-control studies that investigate gene-gene-environment interactions may generate more conclusive claims about the molecular genetics of hypertension. Source

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