Abstract
The effects of liver transplantation on the pituitary-gonadal axis and sex-hormone metabolism were evaluated by studying hormonal status (androgens, oestrogens, and gonadotropins) and sex-hormone-binding globulin levels in men with advanced liver disease of both alcoholic and viral origins. Comparison of the results prior to and 6 months after liver transplantation showed that successful liver transplantation in men induced significant differences in sex-hormone levels and in pituitary-gonadal function in both alcoholic and post-hepatitis patients. Plasma testosterone and dihydrotestosterone levels increased, oestrogen (oestrone and oestradiol) and androstenedione levels fell while gonadotropin (FSH and LH) levels increased. There was also a fall in plasma prolactin levels. Sex-hormone binding globulin plasma levels were elevated prior to transplantation and decreased thereafter. These data show that male patients with advanced liver disease have biological hypogonadism and feminization, irrespective of the aetiology, and that these abnormalities rapidly improve after successful liver transplantation. Therefore in men with advanced liver disease the biochemical signs of sex hormone disturbance are reversible and may be largely related to the liver disease.
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