[Morphological and functional changes in the rat ovary under exposure to a helium-neon laser].

The authors studied the occurring morphological and functional changes in the ovaries of mature rats after transcutaneous irradiation with helium-neon laser over the hypogastric region. Density of power of 1.5 mW/ml with exposition time of 1 min and dimensions of irradiation of 16.61 ml was used. The results from the study showed that helium-neon laser, used for a period of incomplete estrous cycle (4 days), stimulated estrogen function of ovaries, manifested with prolongation of the stages of proestrus and estrus. The action for a period of two incomplete estrous cycles stimulated the ovarian endocrine function to a lesser degree, but induced dystrophic changes and ovarian hemorrhages. The indicated morphological and functional changes were established up to the third estrous cycle after the finished irradiation with helium-neon laser.