Figure 1.

Testis sections stained with hematoxylin - eosin. Section A, samples that received melatonin and spermatogonial stem cells transplantation. Section B, samples that did not t receive melatonin and spermatogonial stem cells transplantation. Section C, samples that received placebo and spermatogonial stem cells transplantation. In the section B, vacuole is shown with arrows and thickening of the basement membrane is shown with arrow heads. Lumen (L), germinal epithelium (GE), Leydig cells (LC). Hematoxylin -eosin. Magnification X 400