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Further evidence for hypothalamic-pituitary dysfunction in alcoholic men.

Reduced plasma levels of testosterone and a high frequency of azoospermia have frequently been reported in alcoholic men. Despite the high grade of gonadal failure present, plasma gonadotropins have ranged from normal to only moderately increased. This has been interpreted as suggesting that a central hypothalamic-pituitary defect also might exist in these men. Clomiphene stimulation studies have been consistent with the hypothesis of a central defect. The present work consists of studies utilizing luteinizing hormone-releasing factor and thyrotropin-releasing factor in an effort to examine the hypothesis of whether this central defect exists and, if so, whether at an anatomic, hypothalamic, or pituitary level.