Artificial cryptorchidism and the moderating effect of melatonin (N-acetyl. 5 methoxy tryptamin) in Sprague-Dawley rats

Journal of Applied Sciences

Volumn 6, Issue 14, 2006, Pages 2889-2894

  Saalu, L C ^a   Togun, V A ^b   Oyewopo, A O ^b   Raji, Y ^c  

^a IGBINEDION UNIVERSITY   (Nigeria)

^b LADOKE AKINTOLA UNIVERSITY OF TECHNOLOGY   (Nigeria)

^c UNIVERSITY OF IBADAN   (Nigeria)

Author keywords

Artificial cryptorchidism; Fertility; Melatonin; Rat

Indexed keywords

ANTHROPOMETRY; RATING; RATS;

ARTIFICIAL CRYPTORCHIDISM; DELETERIOUS EFFECTS; FERTILITY; INTRAPERITONEALLY; MELATONIN; METABOLIC ACTIVITY; MODERATING EFFECT; SPRAGUE-DAWLEY RATS;

HORMONES;

EID: 33845898184     PISSN: 18125654     EISSN: 18125662     Source Type: Journal    
DOI: 10.3923/jas.2006.2889.2894     Document Type: Article

References (29)

1. Chemineau, P., B. Malpaux, Y. Guerin, F. Maurice, A. Deveau and J. Pelletier, 1992. Light and melatonin in the control of sheep and goat reproduction. Annales do Zootechnic, 41: 247-261.
2. Chemineau, P., B. Malpaux, J. Pelletier, B. Leboeuf, J.A. Delgadillo, F. Deletang, T. Pobel and G. Brice, 1996. Use of melatonin implants and day length treatments to control seasonal reproduction in sheep and goats. Prod. Anim. (Paris), 9: 45-60.
3. Chemineau, P. and B. Malpaux, 1998. Melatonin and reproduction in farm livestock. Comptes Rendus des séances de la societe de Biologie et de ses Filiales, 192: 669-682.
4. Ezeasor, D.N., 1985. Light and electron microscopial observations on the leydig cells of the scrotal and abdominal testes of naturally unilateral cryptochid WAD goats. Am. J. Vet. Res., 41: 27-40.
5. Ezeasor, D.N. and A. Singh, 1989. Morphological features of sertoli cell in the testis of cryptochid dwarf goats. Am. J. Vet. Res., 45: 1736-1745.
6. Frandson, R.D., 1976. Anatomy and Physiology of Farm Animals. Lea and Febiger. USA., pp: 348-369.
7. Fred, L., 1997. Canine and Feline cryptochidism. Ind. J. Vet. Sci., 138: 607-615.
8. Grisham, A. and P. McCord, 1986. Chemistry and Cytotoxicity of Reactive Metabolites. Biology of Oxygen Radicals A.E. Taylor, pp: 1-19.
9. Guyton, A.C. and J.E. Hall, 1996. Textbook of Medical Physiology 9th Edn., W.B. Saunders Company. Philadelphia. Pennsylvania, pp: 1006.
10. Inegedu, E.O., A.G. Ezekwe and G. Igboeli, 2005. Gonadal and extragonadal sperm reserves of unilateral cryptochid and normal West African Dwarf bucks (Capra hircus L.) rearein Nsuka. Proc. 30th Annual Conf. Nig. Soc. Anim. Prod., 30: 27-29.
11. Jegou, B., R.A. Peake, D.C. Iraby and D.M. De Krester, 1984. Effects of the induction of experimental cryptorchidism and subsequent orchidopexy on testicular function in immature rats. Biol. Reprod., 30: 179-187.
12. Kawakami, E., 1995. Changes in peripheral plasma leutinizing hormone quality in normal and maturation. Lab. Anim. Sci., 45: 258-263.
13. Kaya, A., M. Aksoy, N. Baspinar, C. Yildiz and M.B. Ataman, 2001. Effect of melatonin implantation to sperm donor rams on post-thaw viability and acrosomal integrity of sperm cells in the breeding and non-breeding season. Reprod. Domestic Anim., 36: 211-215.
14. Nambirajan, L., S. Agarwala, A.K. Dinda and D.K. Mitra, 2002. Fertility and Unilateral undescended testis in the rat model. III. Ultrastructural changes in the contralateral descended testis. Ped. Surg. Intl., 18: 276-280.
15. Ono, K. and N. Sofikitis, 1997. A novel mechanism to explain the detrimental effects of left cryptochidism on right testicular function. Yonago Acta Medica, 40: 79-89.
16. Oyewopo, O.A. and V.A. Togun, 2005. Effect of Temperature on motility and concentration on male Sprague Dawley rats' epididymal spermatozoa. Sci. Focus, 10: 35-40.
17. Patkowski, D., M. Jelen and K. Creni, 1992. The natural course of cryptorchidism in rats. J. Ped. Surg., 27: 870-873.
18. Pinart, E., S. Sancho, M.D. Brizi, S. Bonet and N. Garcia, 1999. Characterization of the semen quality of post puberal boars with spontaneous unilateral abdominal crytochidism on the right side. Anim. Reprod. Sci., 55: 269-278.
19. Raji, Y., U.S. Udoh, O.O. Mewoyeka, F.C. Ononye and A.F. Bolarinwa, 2003. Implication of reproductive endocrine malfunction in male antifertility efficacy of Azadirachta indica extract in rats Afr. J. Med. Med. Sci., 32: 159-165.
20. Raji, Y., O.S. Akinsomisoye and T.M. Salman, 2005. Antispermatogenic activities of Morinda lucida extract in male albino rats. Asian J. Androl., 7: 405-410.
21. Raji, Y., A.K. Oloyo and A.O. Morakinyo, 2006. Studies on the reproductive activities of methanol extract of Ricinus communis seed in male albino rats. Asian J. Androl., 8: 115-121.
22. Reiter, R.J., 1993. Interactions of the pineal hormone melatonin with oxygen-centered free radicals. Braz. J. Med. Biol. Res., 26: 1141-1155.
23. Reiter, R.J., 1995. A review of the evidence supporting melatonin's role as an antioxidant. J. Pineal Res., 18: 1-11.
24. Reiter, R.J., 1998. Oxidative damage in the central nervous system: Protection by melatonin. Prog. Neurobiol., 56: 359-384.
25. SAS, 2002. Statistical Analysis System Inc. Users' Guide Carry. NC. USA.
26. Senger, P.L., 1999. Pathways to Pregnancy and Parturition. Current Conception Inc. 1st Rev. Edn., pp: 169-203.
27. Tellaloglus, S., 1994. Cryptorchidism is orchidopexy always. Preventive treatment for infertility. Acta Chir-Hungatic, 34: 195-201.
28. Waites, G.M.H. and B.P. Setchell, 1990. Physiology of Mammalian Testis. In: Marshall's Physiology of Reproduction. Laming, G.E., (Ed.) Churchill Livingstone. London, 2: 1-105.
29. Zhang, R.D., X.H. Wen and L.S. Kong, 2002. Quantitative study of the effect of experimental unilateral cryptorchidism and subsequent orchidopexy on spermatogenesis in adult rabbit testis. Reprod., 124: 95-105.