Fig. 6
From: Pretreatment with melatonin improves ovarian tissue cryopreservation for transplantation
Immunohistochemical analysis of progesterone receptor comparing the use of melatonin added to the cryopreservation medium or not, in ovarian rat autologous cryopreserved grafts 30 days after transplantation (n = 10 in each group); a control, follicle, 400×; b melatonin, follicle, 400×; c control, corpus luteum, 400×; d melatonin, corpus luteum, 400×; e negative control, 100×