[The function of the reproductive system in x-ray-irradiated male rats after the transplantation of a culture of testicular cells from newborn piglets].

The effect exerted by transplantation of the 5 day culture of testicles from newly born piglets on the hypogonadal state of mature X-ray irradiated (3 Gy) rats was studied. It has been found that a month after transplantation (two months after irradiation) the hypogonadal state disappeared for a while, which is confirmed by normalization of the weight of seminal vesicles, content of testosterone and biologically active lutropine, restoration of the reproductive function of rats. No significant changes in steroidogenesis activity have been found, which proves a substituent character of transplantation.

[Auto- and xenotransplantation of testicular organ culture to castrated rats and rats with experimental hypogonadism].

The organ culture from the testes of newborn pigs able to produce the basic androgens such as testosterone, dehydroepiandrosterone, androstenedione and androstenediol has been obtained. CdCl2 administration to the rats in a dose of 0.055 mg/100 g of body weight and gonadectomy resulted in the development of two experimental models of hypogonadism.

[The cytological and hormonal characteristics of cell cultures from the testes of newborn piglets].

A cell culture of neonatal pig testes has been studied. Leydig cells, Sertoli cells, sex cells and fibroblasts have been identified by cytologic and cytochemical research methods, Gonadotropin concentration (0.1 U/ml) of nutritional medium, increases proliferation of the Leydig cells and increases their 3-beta-ol-steroiddehydrogenase activity as well as increases amount of lipid inclusions and stimulates testosterone production.