The role of Anti-Müllerian hormone in women health.

Anti-Müllerian hormone (AMH), also known as Müller duct inhibitory factor and primarily known for its role in sexual differentiation. In female fetuses, AMH production by granulosa cells begins around the 36th week of gestation and continues in women until menopause. It is becoming more significant in the endocrine and gynecological diagnosis of adult women. The suppressive effect of AMH on follicle-stimulating hormone (FSH)-induced aromatase production likely plays a role in hyperandrogenism in polycystic ovary syndrome (PCOS) and may increase insulin resistance. Female adolescent with type 1 diabetes (T1D) have an increased likelihood of developing PCOS, but it is not known whether they also show elevated AMH levels. The elevated AMH levels observed in prepubertal girls with T1D suggest that there are more small follicles in their ovaries, probably in response to insulin treatment. Elevated levels of androgens and anti-Müllerian hormone have been previously reported in non-pregnant women with diabetes. The increased AMH concentrations can be associated with reduced systemic inflammation [lower c-reactive protein (CRP) values], irrespective of the type of diet and greater insulin sensitivity in old obese males. AMH can also serve as a valuable marker for granulosa cell tumors (folliculomas) and their recurrence. In these clinical scenarios, AMH levels can be significantly elevated and correspond with the size of the tumor.