(Finkelstein et al., 1992). Men who undergo bilateral orchidectomy have a rapid and progressive loss of lumbar spine integral bone with time from orchidectomy (Stepan et al., 1989). In men with hyperprolactinaemic hypogonadism restoration of normal testicular function is assocated with a significant increase in cortical BMD (Greenspan et al., 1986). Siilarly, restoration of normal serum testosterone in men with idiopathic hypogonadotrophic hypogonadism is also associated with a significant increase in cortical BMD (Finkelstein et al., 1989 puted tomography. There was, however, a significant reduction in cortical and trabecular BMD in women with chemotherapy-induced premature ovarian failure compared with similarly treated women with normal ovarian function.We have studied BMD in 29 men in complete remission following treatment of Hodgkin's disease. We have studied the relationship between serum testosterone and BMD, and the effect on BMD of time elapsed since completion of chemotherapy, type of chemotherapy received and number of cycles of chemotherapy.
S and methodsWe studied 29 caucasian men who had previously received chemotherapy for Hodg9in's disease. The study subjects were drawn from 50 consecutive men who presented to the Medical Oncology Dertment at Christie Hospital with newly diagosed Hodgkin's diseas and who were randomised to receive MVPP or hybrid chemotherapy. The 50 men took part in a study investigating the effects of MVPP and hybrid chemotherapy on gonadal function, and 29 of these men consented to have measurements of BMD performed. In the 29 men who underwent measurements of BMD, age at onset of chemotherapy was 31.0 ± 1.9 (mean + standard error, range 16.4-54.0) years. Twelve men had received a mean of 7.5 (range 5-8) cycles of MVPP (mustine 10 mg i.v. and vinblasin 10 mg i.v. on days 1 and 8 with procarbazine 150 mg daily and prednisolone 50 mg daily on days 1-14 of a 42 day cycle) and 17 men had received a mean of 7.5 (range 6-8) cycles of hybrid chemotherapy (vinblastine lOmgi.v. on day 1, with chlorambucil 1Omg daily, procarbazine 150 mg daily and prednisolone 50 mg daily on days 1-7, and etoposide 200mg m-2 i.v., viris 2 mg i.v. and doxorubicin 50 mg m-2i.v. on day 8 of a 28 day cycle). Twenty-four men received radiotherapy (15 to chest and mediastinum, eight to neck and one to axilla) but none in a radiation field which included the testes or the parts of the skeleton studied. All men were in complete remission at the time of study, and all had azoospermia.Blood samples were taken for estimation of serum testosterone, sex hormone-binding globulin (SHBG), LH and FSH. Seven men had blood samples taken on one occasion, 19 on two occasions and three on three occasions. There were therefore a total of 54 blood samples taken 2.7 ± 0.2