Impact of obesity on reproduction in women with polycystic ovary syndrome

Posted by Chantel Martiromo, research contributed by PubMed  
The polycystic ovary syndrome (PCOS) is one of the most common causes of infertility due to anovulation in women. The clinical features of PCOS are heterogeneous and may change throughout the lifespan, starting from adolescence to postmenopausal age,  according to the study by the University Alma Mater Studiorum and Centre for Advanced Biology Research (C.R.B.A.), posted in PubMed, obesity does in fact have profound effects on both the pathophysiology and the clinical manifestation of PCOS, by different mechanisms leading to androgen excess and increased free androgen availability and to alterations of granulosa cell function and follicle development. Notably, simple obesity per se represents a functional hyperandrogenic state. These mechanisms involve early hormonal and metabolic factors during intrauterine life, leptin, insulin and the insulin growth factor system and, potentially, the endocannabinoid system. Compared with normal weight women with PCOS, those with obesity are characterised by a worsened hyperandrogenic and metabolic state, poorer menses and ovulatory performance and, ultimately, poorer pregnancy rates. The importance of obesity in the pathogenesis of PCOS is emphasised by the efficacy of lifestyle intervention and weight loss, not only on metabolic alterations but also on hyperandrogenism, ovulation and fertility. The increasing prevalence of obesity among adolescent and young women with PCOS may partly depend on the increasing worldwide epidemic of obesity, although this hypothesis should be supported by long-term prospective epidemiological trials. This may have great relevance in preventive medicine and offer the opportunity to expand our still limited knowledge of the genetic and environmental background favouring the development of the PCOS.

For the health Benefits and Side effects of Tofu, please visit http://medicaladvisorjournals.blogspot.ca/2011/12/world-most-healthy-foods-beans-legumes_03.html 

Chinese Secrets to Fatty Liver and Obesity Reversal
A fabulous E book with Research based & Scientifically proven Efficacy To Treat Fatty Liver Diseases & Achieve Optimal Health & Loose Weight
 
Back to hormones http://medicaladvisorjournals.blogspot.ca/p/hormones.html

Back to Obesity and Complications