Abstract
We studied the effect of a high-fat, high-carbohydrate diet (HFHCD) on basal testosterone levels in the blood and testosterone, its precursors, and expression of steroidogenic genes in the testes of rats treated with human chorionic gonadotropin (hCG, 10 IU/rat, subcutaneously, once), gonadotropin-releasing hormone receptor antagonist cetrorelix (75 μg/kg, subcutaneously, 3 days), and their combination. In HFHCD rats, no obvious signs of androgen deficiency were observed and the response of the testes to hCG stimulation was preserved. Unlike control rats (normal diet), the expression of the luteinizing hormone receptor gene in these rats did not change in response to hCG stimulation and cetrorelix administration; they also showed a paradoxical, more pronounced response to hCG administration under conditions of suppression of the gonadotropin secretion by cetrorelix. This suggests that the etiology and pathogenesis of obesity may have different effects on the hormonal status of the male reproductive system.
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