[Orthotopic autografts of ovarian slices in pregnant rats].

We carried out orthotopic autografts of ovarian tissue on 15 Wistar rats. One ovary has been removed and cut in 2 or 3 slices. The other ovary has been removed, and the controlateral slices grafted in the empty ovarian bursa by mean of a microscope, without vascular anastomosis. The endocrine function of the graft was assessed by checking the vaginal smears. The animals were mated. Two of them became pregnant with normal offsprings, two others has vaginal bleeding which could be miscarriages. This experimentation suggests that the orthotopic autograft of ovarian slices is possible in rats. The endocrine function of the ovary is restored with a very good rate. Fertility is restored for a small proportion of animals.