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Testicular dysfunction in untreated Hodgkin's disease
Abstract:
Gonadal function was examined in 19 young men with Hodgkin's disease before therapy and compared with that of 11 men with other malignancies, 13 men with primary testicular failure, and 19 normal men of similar age. Total (p less than 0.01) and free (p less than 0.05) testosterone levels were decreased in Hodgkin's disease. In those with advanced (stage III + IV) and symptomatic (B), Hodgkin's disease serum testosterone levels were indistinguishable from those in primary testicular failure, yet serum levels of luteinizing hormone were normal. Moreover, the acute response of serum testosterone to exogenous human chorionic gonadotropin (HCG) was significantly greater in Hodgkin's disease than in primary testicular failure (p less than 0.03). These data and the finding that basal serum follicle-stimulating hormone levels are significantly lower than normal in Hodgkin's disease (p less than 0.05) suggest that the cause of pretreatment hypogonadism in Hodgkin's disease is not simple primary testicular failure. Total sperm count was decreased in 40 percent of men with Hodgkin's disease but in none of the men with other malignancies (p less than 0.05), suggesting specific seminiferous tubular dysfunction in Hodgkin's disease. However, motility was abnormal in 69 percent of men with Hodgkin's disease and 60 percent of those with other malignancies, suggesting that this is a nonspecific effect of cancer. Serum prolactin levels were significantly higher than normal in Hodgkin's disease (p less than 0.05) but not in other malignancies. Our findings suggests that the cause of testicular dysfunction that is present before treatment of Hodgkin's disease is complex, perhaps involving both pituitary and gonadal abnormalities.
Insights
Men with Hodgkin's disease show decreased testosterone and sperm count before treatment, indicating complex testicular dysfunction. This dysfunction appears distinct from primary testicular failure and may involve pituitary and gonadal issues.
Area of Science:
- Endocrinology
- Oncology
- Reproductive Medicine
Background:
- Hodgkin's disease (HD) can affect gonadal function, but the underlying mechanisms of pretreatment hypogonadism are not fully understood.
- Previous studies suggest potential testicular damage, but the specific nature and origin of this dysfunction require further investigation.
Purpose of the Study:
- To investigate gonadal function in young men with Hodgkin's disease prior to therapy.
- To compare hormonal profiles and sperm parameters in HD patients with those in men with other malignancies, primary testicular failure, and normal controls.
- To elucidate the potential causes of pretreatment hypogonadism in Hodgkin's disease.
Main Methods:
- Assessed serum levels of testosterone (total and free), luteinizing hormone (LH), follicle-stimulating hormone (FSH), and prolactin in 19 men with HD before treatment.
- Compared these levels with those in 11 men with other malignancies, 13 men with primary testicular failure, and 19 normal men.
- Evaluated the acute testosterone response to human chorionic gonadotropin (HCG) administration.
- Assessed total sperm count and motility.
Main Results:
- Men with HD exhibited decreased total and free testosterone levels compared to normal controls.
- Testosterone levels in advanced/symptomatic HD were similar to primary testicular failure, but LH levels were normal.
- The testosterone response to HCG was greater in HD than in primary testicular failure.
- Basal FSH levels were lower than normal in HD patients.
- Total sperm count was reduced in 40% of HD patients, suggesting seminiferous tubular dysfunction specific to HD.
- Abnormal sperm motility was common in both HD and other malignancies, indicating a non-specific cancer effect.
- Serum prolactin levels were elevated in HD patients but not in other malignancies.
Conclusions:
- Pretreatment hypogonadism in Hodgkin's disease is complex and not solely due to primary testicular failure.
- Findings suggest a combination of pituitary and gonadal abnormalities contributing to testicular dysfunction in HD.
- Specific seminiferous tubular dysfunction is indicated in HD, while impaired sperm motility appears to be a general effect of malignancy.