Archives of gynecology and obstetrics · 2009
No association of the G972S polymorphism of the insulin receptor substrate-1 gene with polycystic ovary syndrome in lean PCOS women with biochemical hyperandrogenemia.
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Marioli Dimitra J, Koika Vasiliki, Adonakis George L, Saltamavros Alexandros D, Karela Anastasia, Armeni Anastasia K, Tsapanos Vasilios S, Decavalas George O, Georgopoulos Neoklis A
Аннотация
PURPOSE: The aim of the present study was to determine the prevalence and association of the G972S polymorphism of the insulin receptor substrate-1 gene (IRS-1 G972S SNP) with polycystic ovary syndrome (PCOS) and insulin resistance-related traits in a distinct phenotypic group of lean PCOS women with biochemical hyperandrogenemia, excluding obesity, which is considered to be an aggravating parameter of insulin resistance.
METHODS: The study included 162 women with PCOS and 122 regularly menstruating, ovulatory women as controls. Physical measurements included weight, height, fat-free mass, fat mass, systolic and diastolic blood pressure and resting heart rate. Biochemical parameters included the serum testosterone, free testosterone, androstenedione, total cholesterol, triglycerides, HDL and LDL cholesterol and glucose levels. Insulin resistance was assessed by determining fasting insulin levels, fasting glucose levels, the fasting glucose/insulin ratio, as well as the HOMA and QUICKI indexes. All DNA samples were genotyped by a PCR-restriction fragment length polymorphism (RLFP) assay.
RESULTS: No association of the genotype frequencies of the G972S polymorphism in insulin receptor substrate-1 gene (IRS-1 G972S SNP) with PCOS phenotype and insulin resistance was detected.
CONCLUSION: The G972S polymorphism of the IRS-1 gene should not be viewed as major contributor to the development of PCOS or as a causative variant for insulin resistance.
METHODS: The study included 162 women with PCOS and 122 regularly menstruating, ovulatory women as controls. Physical measurements included weight, height, fat-free mass, fat mass, systolic and diastolic blood pressure and resting heart rate. Biochemical parameters included the serum testosterone, free testosterone, androstenedione, total cholesterol, triglycerides, HDL and LDL cholesterol and glucose levels. Insulin resistance was assessed by determining fasting insulin levels, fasting glucose levels, the fasting glucose/insulin ratio, as well as the HOMA and QUICKI indexes. All DNA samples were genotyped by a PCR-restriction fragment length polymorphism (RLFP) assay.
RESULTS: No association of the genotype frequencies of the G972S polymorphism in insulin receptor substrate-1 gene (IRS-1 G972S SNP) with PCOS phenotype and insulin resistance was detected.
CONCLUSION: The G972S polymorphism of the IRS-1 gene should not be viewed as major contributor to the development of PCOS or as a causative variant for insulin resistance.