[Morphometric aspects of ultrastructural details of rat thyrocytes which have been irradiated and pretreated with melatonin].

In this work the authors investigated by qualitative and quantitative analysis of ultrastructural details of thyreocytes in irradiated rats with and without of melatonin treatment. On the basis histological qualitative and stereological analysis of materials and by the comparison of results in the animals who received and who didn't receive melatonin before irradiation it can conclude that melatonin modifies behaviour the thyroid glands in irradiation stress.