Effects of Acupuncture on Body Mass Index in Overweight and Obese Women With Polycystic Ovary Syndrome (PCOS )

This is a cross-sectional case-control study combined with a randomised controlled trial (RCT) study. This study aims to compare the effect of acupuncture, with usual care (lifestyle management) for weight control, with BMI (Body Mass index) as main outcome along with improvement of reproductive and metabolic dysfunction in overweight and obese women with PCOS, and further exploring the alteration of lipidomics, bile acid omics, proteomics and branched-chain amino acids between PCOS and the normal controls, and before and after the acupuncture treatment in different gourps.

Polycystic ovary syndrome (PCOS) affects 6 to 18% of all women and is the most common female endocrine and metabolic disorder during the reproductive years. PCOS is characterized by anovulation, hyperandrogenism and metabolic dysfunction.Obesity is \~40% higher in women with PCOS than in healthy women. Overweight results in irregular cycles, insulin resistance and infertility. Acupuncture is assumed to reduce weight The overall hypothesis is that if the Body mass index (BMI) decreased, ovulation can be induced, hyperandrogenism decreased, and insulin sensitivity improved in these women. Although several treatment strategies have shown efficacy, importantly, there is a need for Comparative Effectiveness Research (CER) to strengthen the evidence base for clinical and policy decision-making. Therefore, the investigators aim to compare the effect of acupuncture, with usual care (lifestyle management) for weight loss, and improvement and prevention of reproductive and metabolic dysfunction in overweight and obese women with PCOS. We further compare the differences of PCOS and the controls with the methods of lipidomics, bile acid omics, proteomics and branched-chain amino acids, exploring the mechanisms of acupuncture on PCOS with this kind of methods.