Primary Ovarian Insufficiency due to Steroidogenic Cell Autoimmunity Is Associated with a Preserved Pool of Functioning Follicles
2010
Context: Primary ovarian insufficiency (POI) is defined as hypergonadotropic amenorrhea before the age of 40 yr. In 4–5% of patients with POI, an ovarian autoimmune process is present. Design: Serum concentrations of antimullerian hormone (AMH) have been determined in 26 women with POI due to steroidogenic cell autoimmunity (SCA-POI), 66 with nonautoimmune idiopathic POI (iPOI), 40 postmenopausal women (PMW), and 44 healthy fertile women (HW). SCA-POI was diagnosed according to presence of steroidogenic enzyme autoantibodies (17α-hydroxylase, side chain cleavage, and 21-hydroxylase autoantibodies). Results: AMH concentrations were significantly higher in women with SCA-POI than women with iPOI (P = 0.018) or PMW (P = 0.03) but significantly lower than HW (P < 0.0001). AMH was detected in 11 of 26 women with SCA-POI (42%) and seven of 66 with iPOI (11%) (P = 0.002). Serum concentrations above the fifth percentile of the normal range (0.6 ng/ml) were detected in nine of 26 women with SCA-POI (35%) and four ...
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