[Effect of space flight aboard "Kosmos-1129" on thyroid hormone content of the blood and thyroid gland of rats]. / Vliianie poleta na biosputnike "Kosmos-1129" na soderzhanie gormonov shchitovidnoi zhelezy v krovi i tkani samoi zhelezy u krys.

Thyrotrophin, thyroxine, triiodothyronine, and reverse triiodothyronine were measured in plasma and thyroxine and triiodothyronine in the thyroid gland of the rats flown for 18.5 days onboard Cosmos-1129. Postflight the plasma content of thyrotrophin and triiodothyronine increased and that of thyroxine decreased and the gland content of thyroxine and triiodothyronine diminished. It is postulated that in the flight animals the functional activity of the thyroid gland declined.