[Thyroid gland morphological and functional indices in the experimental action of chromium]

The influence of chromium added to food (from 3.0 to 2250 microgram per 1 kg of body weight) on the morphology and function of the thyroid gland was studied in experiment on albino male rats. On the basis of the results of study of the histological structure and the thyroid gland weight, the level of the protein-bound iodine and the effective thyroxin coefficient the dose of chromium of 3 microgram per 1 kg of body weight should be considered to be most physiological.