Sex hormones during alcohol withdrawal: a longitudinal study of 29 male alcoholics during detoxification

It is a well-known fact that alcohol affects sex hormone levels in males. Even in the absence of liver dysfunction, there is still a direct toxic effect of ethanol on testosterone synthesis resulting in acutely decreased values. This study is based on 29 male alcoholics without severe signs of liver disease treated on the alcohol detoxification ward at Huddinge hospital in Stockholm, Sweden during 1995. The aim was to study levels of sex hormones in male alcoholics during detoxification with benzodiazepines and after 3 weeks of sobriety. Blood samples were taken three times: one day after admission (day 2) when the patient was sober, at discharge (day 5) and after 3 weeks of sobriety (day 21). Levels of testosterone and sex hormone-binding globulin (SHBG) showed the same pattern during detoxification and follow-up. They were both low, but generally within normal limits, on days 2 and 5, but raised after 3 weeks of sobriety. Follicle stimulating hormone (FSH) and luteinizing hormone (LH) were initially high, but were substantially depressed during detoxification. Levels of FSH recovered after 3 weeks, whereas LH remained at the same level. Most patients exhibited generally low levels of both FSH and LH, however. Levels of oestrone decreased steadily. There were no correlations between levels of sex hormones and the number of milligrams of oxazepam administered to the patients during detoxification either at admission, at discharge or at follow-up. In summary, the endocrinological response to alcohol intake is complex. This study suggests that the duration of endocrinological recovery after drinking is a quite long-lasting process, that different hormones need different times to recover and that the normal glandular-pituitary feed-back processes may be partly put out of order.