scholarly journals The synergistic effect of sex hormone-binding globulin and aromatase genes on polycystic ovary syndrome phenotype.

2008 ◽  
Vol 158 (6) ◽  
pp. 861-865 ◽  
Author(s):  
Nectaria Xita ◽  
Ioannis Georgiou ◽  
Leandros Lazaros ◽  
Vasiliki Psofaki ◽  
George Kolios ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Sex Hormone ◽  
The Body ◽  
Reproductive Age ◽  
Sex Hormone Binding Globulin ◽  
Total Testosterone ◽  
Aromatase Activity ◽  
Hormone Binding ◽  
Ovary Syndrome

ObjectiveExperimental evidence suggests that fetal exposure to androgen excess may program the development of polycystic ovary syndrome (PCOS) in utero. The aim of this study was to examine whether the sex hormone binding globulin (SHBG)(TAAAA)n and the cytochrome P450, family 19 (CYP19)(TTTA)n polymorphisms, known to influence sex hormone-binding globulin (SHBG) levels and aromatase activity respectively, play a synergistic role in the development of PCOS.Design and methodsWe studied 180 women with PCOS and 160 healthy women of reproductive age. The body mass index (BMI) was recorded and the hormonal profile determined from the third to fifth day of menstrual cycle. DNA was extracted from blood leucocytes and the SHBG(TAAAA)n and CYP19(TTTA)n polymorphisms were genotyped.ResultsGenotype analysis revealed 6 SHBG(TAAAA)n alleles with 6–11 repeats and 6 CYP19(TTTA)n alleles with 7–12 repeats. Women were subdivided into four groups: those with short SHBG (≤8 TAAAA repeats) and CYP19 alleles (≤9 TTTA repeats), those with short SHBG–long CYP19 alleles, those with long SHBG–short CYP19 alleles, and those with long SHBG and CYP19 alleles. Women with PCOS tended to have at greater frequency, long SHBG–short CYP19 alleles compared with controls (57.3 vs 42.4%, P=0.07). Importantly, PCOS women with long SHBG–short CYP19 alleles had the lowest SHBG levels (P=0.02) and the highest total testosterone (P=0.008), free androgen index (P=0.002), DHEAS (P=0.02), and testosterone/estradiol ratio (P=0.03), compared with those with other genotypes. This association was independent of age, BMI, and insulin resistance indexes.ConclusionWe speculate that the SHBG and CYP19 genes may have a synergistic role in the developmental programming of PCOS, by affecting androgen bioavailability and aromatization respectively.

A Direct Effect of Hyperinsulinemia on Serum Sex Hormone-Binding Globulin Levels in Obese Women with the Polycystic Ovary Syndrome*

1991 ◽  
Vol 72 (1) ◽  
pp. 83-89 ◽  
Author(s):  
JOHN E. NESTLER ◽  
LINDA P. POWERS ◽  
DENNIS W. MATT ◽  
KENNETH A. STEINGOLD ◽  
STEPHEN R. PLYMATE ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Direct Effect ◽  
Polycystic Ovary ◽  
Sex Hormone ◽  
Sex Hormone Binding Globulin ◽  
Obese Women ◽  
Hormone Binding ◽  
Ovary Syndrome

scholarly journals The Correlation of Serum Total Testosterone, Sex Hormone Binding Globulin and Free Androgen Index with Athens Insomnia Scale Score in Polycystic Ovary Syndrome

2018 ◽  
Vol 10 (1) ◽  
pp. 46
Author(s):  
Hartanto Bayuaji ◽  
Heda Melinda Nazaruddin Nataprawira ◽  
Herri Suhari Sastramihardja
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Sleep Disturbance ◽  
Testosterone Level ◽  
Polycystic Ovary ◽  
Sex Hormone Binding Globulin ◽  
Total Testosterone ◽  
Hormone Binding ◽  
Ovary Syndrome ◽  
Free Androgen Index ◽  
Athens Insomnia Scale

BACKGROUND: Polycystic ovary syndrome (PCOS), a common reproductive endocrinologic disorder in woman, was considered to be related to sleep disturbance. This study is aimed to analyze the correlation between excess androgen markers and Athens Insomnia Scale (AIS) in PCOS.METHODS: This observational, cross-sectional study of PCOS was conducted to 31 subjects to evaluate the correlation between serum total testosterone, sex hormone binding globulin (SHBG) and free androgen index with the incidence of sleep disturbance using AIS. Sleep disturbance was present if the score ≥6. The correlation between excess androgen markers and sleep disturbance was analyzed using Pearson’s coefficient of correlation or Spearman’s rho test. Correlation coefficient more than 0.5 with p<0.05 was considered significant.RESULTS: Out of 31 PCOS subjects aged 20-40 years, 39% subjects had AIS score ≥6. Mean serum testosterone in AIS score >6 group was higher than AIS score <6 group but not statistically significant (46.68 vs. 28.49 ng/mL, p>0.05). No significant correlation was found between serum total testosterone, SHBG and free androgen index with AIS score. After adjusting for AIS score, there was the moderate positive correlation between serum total testosterone level although not statistically significant (r=0.54, p=0.07).CONCLUSION: The serum total testosterone level might influence the occurrence of sleep disturbance in PCOS.KEYWORDS: PCOS, androgen excess, testosterone, sleep disturbance, Athens Insomnia Scale

Sex hormone-binding globulin expression in the endometria of women with polycystic ovary syndrome

2007 ◽  
Vol 87 (2) ◽  
pp. 321-328 ◽  
Author(s):  
Manuel Maliqueo ◽  
Ketty Bacallao ◽  
Susana Quezada ◽  
Marisa Clementi ◽  
Fernando Gabler ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Sex Hormone ◽  
Sex Hormone Binding Globulin ◽  
Hormone Binding ◽  
Ovary Syndrome

Sex hormone-binding globulin and polycystic ovary syndrome

2019 ◽  
Vol 499 ◽  
pp. 142-148 ◽  
Author(s):  
Jing-ling Zhu ◽  
Zhuo Chen ◽  
Wen-jie Feng ◽  
Shuang-lian Long ◽  
Zhong-Cheng Mo
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Sex Hormone ◽  
Sex Hormone Binding Globulin ◽  
Hormone Binding ◽  
Ovary Syndrome

scholarly journals Sex hormone-binding globulin concentrations before conception as a predictor for gestational diabetes in women with polycystic ovary syndrome

2010 ◽  
Vol 25 (12) ◽  
pp. 3123-3128 ◽  
Author(s):  
S. M. Veltman-Verhulst ◽  
T. W. van Haeften ◽  
M. J. C. Eijkemans ◽  
H. W. de Valk ◽  
B. C. J. M. Fauser ◽  
...  
Keyword(s):  
Gestational Diabetes ◽  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Sex Hormone ◽  
Sex Hormone Binding Globulin ◽  
Hormone Binding ◽  
Ovary Syndrome

Common Variants in the Sex Hormone-Binding Globulin (SHBG) Gene Influence SHBG Levels in Women with Polycystic Ovary Syndrome

2015 ◽  
Vol 68 (1) ◽  
pp. 66-74 ◽  
Author(s):  
Tala M. Abu-Hijleh ◽  
Emily Gammoh ◽  
Amna S. Al-Busaidi ◽  
Zainab H. Malalla ◽  
Samira Madan ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Multivariate Regression Analysis ◽  
Sex Hormone ◽  
Minor Allele ◽  
Sex Hormone Binding Globulin ◽  
Common Variants ◽  
Hormone Binding ◽  
Ovary Syndrome ◽  
Reduced Frequency

Background: Decreased sex hormone-binding globulin (SHBG) levels were associated with polycystic ovary syndrome (PCOS). SHBG polymorphisms associated with reduced SHBG production were tested for their association with PCOS, but with inconclusive results. We tested whether altered SHBG levels and SHBG variants were associated with PCOS. Methods: The study subjects included 242 women with PCOS and 238 control women. SHBG genotyping was done by real-time PCR. Results: Higher minor allele frequency of rs13894, rs858521 and rs727428 was seen in PCOS cases, and significant differences in rs858521 and rs727428 genotypes distribution were seen between PCOS cases and controls. Multivariate regression analysis confirmed the association of only rs727428 with PCOS. Though it was not statistically significant, serum SHBG levels were reduced according to rs727428 genotypes in PCOS cases than in controls. Carriage of rs727428 minor allele was associated with significant increases in free/bioactive testosterone in PCOS cases. Seven-locus (rs9898876-rs13894-rs858521-rs1799941-rs6257-rs6259-rs727428) haploview analysis showed increased frequency of GCCGTGA, GTCGTGA and GTCATGG, and reduced frequency of GTCGTGG haplotypes in PCOS cases than in controls, thus conferring disease susceptibility and protective nature to these haplotypes, respectively. Conclusion: Specific SHBG variants affecting serum SHBG levels and SHBG haplotypes are associated with PCOS, suggesting the role for SHBG as PCOS candidate gene.

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