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Sex differences exist in effect of obesity on serum gonadotropin levels.

Women's Health Weekly

| December 04, 2003 | COPYRIGHT 2003 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2003 DEC 4 - (NewsRx.com & NewsRx.net) -- Sex differences exist in the effect of obesity on 24-hour mean serum gonadotropin levels.

"To determine the effect of obesity on serum gonadotropin levels and any possible sex difference in the effect, we measured the 24-hour mean serum follicle-stimulating hormone (FSH) and luteinizing hormone (LH) concentrations in 62 healthy men with Body Mass Index (BMI) ranging from 20-94 and 61 healthy, regularly cycling women with BMIs ranging from 19-76. We also measured free testosterone (T) and estradiol (E2) in these subjects," scientists in the United States report.

"There was a significant negative correlation between serum FSH and BMI in men: FSH(IU/L)=49.9 x BMI-0.567; r=-0.376, p=0.0026; but a significant positive correlation between serum FSH and BMI in women: FSH(IU/L)=7.66 [+ or -] 0.071 x BMI; r=0.302, p=0.018," stated Gladys W. Strain and collaborators at Beth Israel Medical Center, Mount Sinai Medical Center, and St. Luke's-Roosevelt Medical Center in New York. "Serum LH was weight-invariant in both sexes. In men, free T was negatively correlated with BMI: Free T(nmol/L)= 0.74-0.0068 x BMI; r=0.585, p=0.0381; and free E2 was positively correlated with BMI: Free E2(pmol/L)=-1.03[+ or -]0.057 x BMI; r=0.50, p=0.0014."

"In obese women as a ...

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