Clinical findings and hormonal response in patients with polycystic ovarian disease with normal versus elevated LH levels

Obstetrics and Gynecology (Impact Factor: 5.18). 05/1976; 47(4):388-94.
Source: PubMed


The clinical features, ovarian pathology, and hormonal responses to dexamethasone (Dex), Dex + ethinyl estradiol (EE), and Dex + hCG were compared in 5 women with polycystic ovarian disease (PCOD) who have normal 24-hr urinary luteinizing hormone (LH levels to 5 who had elevated urinary LH levels. No differences were noted in the clinical features. There was no correlation between ovary size and LH levels. Three in the normal-LH group had hyperthecosis. Plasma androstenedione (A) was more frequently elevated in the high-LH group. Dex + EE markedly increased LH secretion in the high-LH group, suggesting increased responsiveness of the positive feedback control mechanism of LH secretion in the high-LH group. There was a greater response of A, testosterone (T), and 17-ketosteroids to Dex + hCG in the normal-LH group. Those with high-LH levels did not exhibit a significant increase in A, T, and 17-KS with hCG. The limitations and usefulness of the Dex + hCG test are discussed. The hypothesis is advanced that the increased LH secretion in the high-LH group is due at least in part to positive feedback resulting from the increased A levels. The amount of 17beta-oxidoreductase activity in the ovary may influence LH secretion in PCOD.

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