Polycystic ovary syndrome is a disorder characterized by hyperandrogenism, ovulatory dysfunction and polycystic ovarian morphology. It is usually associated with metabolic defects such as insulin resistance. It is the leading cause of female infertility and its prevalence is estimated at 8-10% of women.
Polycystic ovary syndrome
The exact cause of the syndrome is unknown, although there are a number of factors associated with an increased risk of occurrence:
- Insulin resistance. Insulin allows cells to use glucose, but if these cells become resistant to this hormone, blood levels can rise, causing insulin levels to also increase to try to control it. Too much insulin can cause the body to produce more androgens.
- Excess androgens. Excessive production of "male hormones" by the ovaries can interfere with ovulation, as well as cause hirsutism and acne.
- Low grade inflammation. Research has shown that people with PCOS have a type of prolonged low-grade inflammation.
Symptoms
Symptoms may begin at any time during a woman`s fertile life, but are more common in younger women. Common symptoms include
- Irregular menses
- Infertility
- Pelvic pain
- Excess hair on the face, chest or abdomen
- Weight gain
- Acne
In addition, women with PCOS are more likely to develop diabetes, metabolic syndrome, heart disease and hypertension.
Prevention
Currently, there is no known way to prevent the development of the pathology and there is no cure. But there are treatments that can help prevent the symptoms, such as:
- Medical treatments, such as those based on the use of contraceptive pills combined with estrogens and progestin that decrease the production of androgens.
- Lifestyle changes. It has been shown that healthy lifestyle habits such as a balanced diet that avoids the consumption of ultra-processed foods, weight loss if necessary, or the practice of regular physical exercise can help a lot in the management of the symptomatology.
Number of observed variants
13.5 million variants
Number of risk loci
14 loci
Genes analyzed
Bibliography
Day F, Karaderi T, Jones MR, et al. National Institute of Neurological Disorders and (NIH) [March 2023].
Polycystic ovary syndrome (PCOS). Mayo Clinic [Jan 2023]
Stener-Victorin E, Deng Q. Epigenetic inheritance of polycystic ovary syndrome - challenges and opportunities for treatment. Nat Rev Endocrinol. 2021 Sep;17(9):521-533.
Polycystic ovary syndrome. National Library of Medicine. National Center for Biotechnology Information (NIH) [Nov 2022]