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Association of rs6259 polymorphism with SHBG levels and Poly Cystic Ovary Syndrome in Indian population: a case control study

Author:
Bhatnager, Richa, Senwal, Alka, Nanda, Smiti, Dang, Amita S.
Source:
Molecular biology reports 2019 v.46 no.2 pp. 2131-2138
ISSN:
0301-4851
Subject:
alleles, androgens, animal ovaries, animal tissues, biomarkers, blood serum, case-control studies, genotype, hyperandrogenism, liver, pathophysiology, polycystic ovary syndrome, polymerase chain reaction, restriction endonucleases, restriction fragment length polymorphism, risk, sex hormone-binding globulin, women
Abstract:
Polycystic ovary syndrome (PCOS) is the most common endocrinopathy of reproductive-aged women. PCOS reflects a number of possible etiologies but its pathophysiology is still unclear. The principal abnormality of the syndrome is hyperandrogenism (70–80%). The access of androgens to target tissues is regulated by sex hormone-binding globulin (SHBG), a transport protein secreted by liver i.e. specific for androgens. Present study was done to find the association of rs6259 polymorphism with SHBG levels and Poly Cystic Ovary Syndrome in Indian population. Present study was a case control study. 400 subjects were enrolled for the study and serum SHBG levels and D327N polymorphism were measured. The D327N polymorphism (wild-type and variant allele) was detected using PCR-RFLP method (restriction enzyme Bbs-I). PCOS group was found to have significantly lower SHBG levels than healthy controls. There was no significant difference in genotype distribution between PCOS and controls (χ² = 1.0335, p = 0.59). Significant difference in SHBG levels of PCOS and control group highlights the potential of SHBG as a biomarker for PCOS. However, no significant difference in genotype distribution between PCOS and controls provided an insight that rs6259 polymorphism is not associated with the risk of PCOS and SHBG levels.
Agid:
6365042