Abstract
Obesity is a worldwide problem in which genetic factors have a prominent role. We have selected two single nucleotide polymorphisms (SNPs) within glutamate metabotropic receptor 7 (GRM7) gene, namely rs6782011 and rs779867 to weigh their association with obesity in an Iranian cohort. The distribution of rs6782011 alleles was significantly different in the obese patients from normal controls (P < 0.0001; 434 obese patients vs. 297 normal controls). Distribution of alleles was also measured between sex-based groups of obese patients and controls. We detected remarkable differences between female obese cases and female control subjects (P < 0.0001; 374 female obese cases vs. 216 female normal controls); nevertheless, the difference in allele distribution was not significant for male cases compared with corresponding normal controls (p = 0.47; 60 male patients vs. 81 normal males). Contrariwise, distribution of rs779867 alleles was not significantly different between total obese patients compared with normal controls (P = 0.21; 434 obese patients vs. 297 normal BMI controls). There was also no significant difference for female and male obese patients compared with female and male normal BMI controls. Thus, GRM7 can be considered as a risk locus for obesity.
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