THYROID, SALIVARY AND HARDERIAN GLANDS IN MICE EXPOSED TO HEAT

Publisher Website
Google Scholar
Abstract
SUMMARY: A reduction in the uptake of 131I by the thyroid gland has been measured in inbred and F1 hybrid mice reared in a hot environment (91 ± 1° F dry bulb, 85 ± 1° F wet bulb). Rapid concentration of 131I occurs in the submaxillary glands following its intraperitoneal injection. Two and three-quarter hr after injection the submaxillary glands from heat-exposed mice had a higher 131I content than those from control counterparts. The inverse relationship between uptake of 131I by thyroid and salivary glands in heat-exposed and control mice is probably due to partition of the injected iodide between the tissues. A significant decrease in the weight of the Harderian glands, allowing for small decreases in body weight, was found in the mice reared in the hot environment.