[Thyroid and hypophyseal function during radiation therapy of breast cancer]

In breast cancer a decrease in triiodothyronine concentration was revealed with the normal level of thyroxine that may be associated with the disturbed peripheral metabolism into triiodothyronine. The lowering of thyroid functional activity is noted during radiation therapy of patients at menopause. Administration of thyroidin during radiation therapy to elderly patients with the III stage of the disease compensated for hormone deficiency producing a sparing effect on the thyroid, and influenced the therapeutic results favorably. A high level of the somatotropic hormone was observed in patients of the reproductive age and at menopause, the level of insulin was increased in all the patients.