Abstract
The efficacy of recombinant human follicle-stimulating hormone (rhFSH) in the treatment of normogonadotropic patients with male-factor infertility was assessed. Forty-five infertile men with moderate/severe oligoasthenozoospermia and normal FSH, luteinizing hormone (LH) and testosterone (T) levels were treated with high rhFSH dose (300IU) on alternate days for ≥4months. In all, the seminal parameters, endocrine profile (FSH, LH, prolactin (PRL), total and free T and estradiol) and pregnancy rate were evaluated before, during and after rhFSH treatment. Fifteen infertile men were treated with placebo and studied in the same way, as control group. rhFSH treatment induced a marked increase in sperm count and no change in sperm motility, morphology and viability. No changes in seminal parameters were observed in the placebo group. FSH levels increased during treatment with rhFSH and not with placebo. No variations in LH, PRL, free and total T and estradiol were evidenced during treatment. A significant pregnancy rate in rhFSH versus placebo patients was also highlighted. Prolonged treatment with high rhFSH doses leads to increase sperm count and improve the spontaneous pregnancy rate in normogonadotropic infertile patients with oligoasthenozoospermia. rhFSH may represent a rational and useful tool in the treatment of male-factor infertility.
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