SEX HORMONE BINDING GLOBULIN GENE POLYMORPHISM AND RISK OF TYPE2 DIABETES MELLITUS IN EGYPTIAN MEN | ||||
Zagazig University Medical Journal | ||||
Article 18, Volume 20, Issue 2, March 2014, Page 1-7 PDF (531.72 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/zumj.2014.4372 | ||||
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Authors | ||||
Shereen El Tarhouny1; Soha Zakaria2; Khaled d Hadhoud3; Manal Hanafi4; Azza Kamel5; Omar Al Nozha6 | ||||
1Medical Biochemistry Department, FOM, Zagazig University, Egypt & Taibah University, KSA | ||||
2Medical Biochemistry Department, FOM, Tanta University, Egypt & Taibah University, KS | ||||
3Internal Medicine Department FOM, Zagazig University, Egypt | ||||
4Community Medicine Department FOM, Alexandria University, Egypt & Taibah University, KSA | ||||
5Medical Biochemistry Department, FOM, Menofia University, Egypt & Taibah University, KSA | ||||
6Medicine Department FOM, Taibah University, Al Madina, KSA | ||||
Abstract | ||||
Conditions of hypoandrogenism in men have been linked to insulin resistance, suggesting that alterations in normal sex steroid physiology could play a role in the pathogenesis of type 2 diabetes (T2DM). Sex hormone binding globulin gene polymorphisms may be the cause of sex steroid alteration The aim of this work to study effect of sex hormone binding globulin (SHBG) gene polymorphisms on type 2 diabetes mellitus risk through its impact on testosterone and estradiol level in Egyptian men. In 185 diabetic men and 120 matched healthy controls, two polymorphisms (rs6257 and rs6259) of the gene encoding sex hormone–binding globulin were genotyped and serum levels of sex hormone–binding globulin, testosterone and estradiol were measured by ELISA; Our results showed significant decrease in sex hormone binding globulins in type 2 diabetic patients compared with the control group. Carrier of variant allele of SHBG single nucleotide polymorphism (SNP) rs6259 had a higher level of SHBG in serum (p=0.000) While carrier of SHBG rs6257 SNP had a lower level of SHBG level in serum SHBG gene polymorphisms are associated with risk of type 2 diabetes in Egyptian men, through lowering circulating levels of sex hormone–binding globulin and consequently lowering testosterone and elevating estradiol level. SHBG rs6257 genotype may have a predictive value of developing type II diabetes mellitus | ||||
Keywords | ||||
Diabetes mellitus; SHBG; Gene polymorphism; testosterone; and estradiol | ||||
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