The effect of weight loss program on serum anti-Müllerian hormone level in obese and overweight infertile women with polycystic ovary syndrome.

We evaluated the predictive value of serum anti-Mullerian hormone (AMH) levels for improved menstrual cycles in response to dietary management in women with polycystic ovary syndrome (PCOS). In addition, we assessed the effect of a restricted calorie diet for 12 weeks on serum AMH levels. This intervention study was carried out at Rohan Institute, Tehran, Iran from 2013 to 2015. A total of 105 overweight and obese women with PCOS and reproductive impairment participated in a 12-week weight loss program (WLP). The serum AMH levels, weight, and menstrual cyclicity were assessed at baseline and post-intervention for all of the participants. A total of 90 patients completed the 12-week WLP. Of the 90 patients, 65 (72.2%) responded to the intervention with improvements in menstrual cyclicity. There were no significant differences in terms of age, baseline AMH levels, and other hormone profiles between responders and nonresponders. Responders had a significantly lower baseline body mass index (BMI) and waist circumference compared with nonresponders. These factors were the clinical predictors for a menstrual response after the intervention. The AMH levels did not significantly change after 12-week WLP despite the overall reduced weight; however, women who responded with improved reproductive function had a greater reduction in AMH levels.