Fig. 3.

TUNEL staining of testes

(a) Testis from the control group. Few TUNEL-positive germ cells are observed in the seminiferous epithelium. (b) Testis from the CP group. Apoptotic cells are frequently found in the seminiferous epithelium. (c) Testis from the CP+L-carnitine group. Apoptotic cells are significantly decreased. The positive cells were stained with brown color (Note: for interpretation of the references to color in this figure legend, the reader is referred to the web version of this article)