2Michiharu Miura, Isoji Sasagawa, Yasuhiro Suxuki, et al. Apoptisis and expression of apoptosisrelated genes in the mouse testis following heat exposure. Biol Reprod,2002,77(4):787.
3Valenti S, Cuttica CM, Fazzuoli L, et al. Biphasic effect of nitric oxide on testosterone and cyclic GMP production by purified rat Leydig cells cultured in vitro [J]. Int J Androl,1999, 22(5): 336 - 341.
4Herrero MB, Cebral E, Boquct M, et al. Effect of nitric oxide on mouse sperm hyperactivation [J]. Acta Physiol Pharmacol Ther Latinoame, 1994, 44(3): 65 -69.