The Thyroid Reserve in Patients with Breast Cancer

Autor: SHINTARO SAITO, RIKIYA ABE, TOSHIRO SAKURADA, KATSUMI YOSHIDA, MICHIO KIMURA, MAKIKO YAMAMOTO, KAZUO KAISE, NOBUKO KAISE, KAORU YOSHINAGA
Rok vydání: 1977
Předmět:
Zdroj: The Tohoku Journal of Experimental Medicine. 122:229-235
ISSN: 1349-3329
0040-8727
Popis: Patients with breast cancer were studied with regard to changes in the levels of serum thyroxine (T4) and serum triidothyronine (T3) after intramuscular administration of TSH for three days to investigate the thyroid reserve in these patients. The changes were examined also in normal subjects, in patients with Hashimoto's thyroiditis and primary hypothyroidism. In primary hypothyroidism no increase was seen in serum T4 and T3 levels after TSH administration, and the thyroid reserve was considered to be absent. In Hashimoto's thyroiditis the serum T3 levels after TSH administration were the same as in normal subjects, but the serum T4 levels were significantly lower than normal. This suggests that in patients with Hashimoto's thyroiditis the thyroid reserve is decreased and is in a state of so-called low thyroid reserve. In patients with breast cancer, however, the levels of serum T4 and T3 showed no difference as compared with those in normal subjects after TSH administration, and this implies that the thyroid reserve is well maintained.
Databáze: OpenAIRE