Accession Number : AD0666906

Title :   THYROID STATUS OF DOGS CONTINUOUSLY EXPOSED TO ONE-HALF ATMOSPHERE.

Descriptive Note : Rept. for Jun 64-Jul 66,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Wood,David H.

Report Date : NOV 1967

Pagination or Media Count : 21

Abstract : Six male beagle dogs were maintained on ambient air at one-half atmosphere for 33 days and were monitored for protein-bound iodine (PBI), thyroid I 131 avidity, plasma triiodothyronine uptake, and plasma 17-hydroxycorticosteroids. Data were compared with those from littermate controls held at ground level. Increased I 131 uptake and reduced triiodothyronine uptake were observed in the altitude-exposed dogs, while no change in the peripheral blood hydrocortisone level was seen. No difference in the gross, microscopic, or ultrastructural anatomy of the thyroid glands of groups was noted. (Author)

Descriptors :   (*THYROID GLAND, STRESS(PHYSIOLOGY)), PRESSURE BREATHING, HIGH ALTITUDE, IODINE, CORTICOSTEROID AGENTS, SECRETION, BLOOD ANALYSIS, RADIOACTIVE ISOTOPES, TRACER STUDIES, AEROSPACE MEDICINE

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE