Anti-Mullerian hormone levels in girls and adolescents.

Anti-Mullerian hormone (AMH) is a homodimeric glycoprotein which belongs to the TGF-beta superfamily of growth and differentiation factors. There are few studies that present AMH concentrations in premenarcheal and early postmenarcheal girls. The aim of this study is to evaluate AMH levels in girls. A serum AMH increase of 1 pmol/L is related with a higher possibility of menarche occurrence. AMH levels are significantly higher in postmenarcheal girls than in prepubertal girls.