References
- Akanji MA, Yakubu MT (2000): α-Tocopherol protects against metabisulphite-induced tissue damage in rats. Nig J Biochem Mol Biol 15: 179–183.
- Ang HH, Cheang HS, Yusof AP (2000): Effect of Eurycoma longifolia Jack (Tongkat Ali) on the initiation of sexual performance of inexperienced castrated male rats. Exp Anim 49: 35–38.
- Bedwall RS, Edwards MS, Katoch M, Bahuguna A, Dewan R (1994): Histological and biochemical changes in testes of zinc deficient BALB/C strain of mice. Indian J Exp Biol 32: 243–247.
- Breton S, Smith PTS, Lui B, Brown D (1996): Acidification of the male reproductive tract by a proton pumping (H+)-ATPase. Nature Med 2: 470–472.
- Cameron DF, Muffly KE, Nazian SJ (1994): Reduced testosterone during puberty results in a midspermiogenic lesion. Proc Soc Exp Biol Med 202: 457–464.
- Carreau S (1996): Paracrine control of human Leydig cell and Sertoli cell functions. Folia Histochem Cytol 34: 111–119.
- Chinoy NJ, Bhattachary S (1997): Effect of chronic administration of aluminium chloride on reproductive functions of the testes and some accessory sex organs of male mice. Indian J Environ Toxicol 7: 12–15.
- Conn PM (1986): The molecular basis of gonadotropin releasing hormone action. Endocr Rev 7: 3–10.
- De Krester DM (1987): The testis, in: Austin, CR, Short RV, eds, A Hormonal Control of Reproduction. New York, Academic Press, pp. 76–90.
- Dixit VP, Gupta RS (1982): Antispermatogenic/antiandrogenic properties of solasodine (C27H43O2N) obtained from Solanum xanthocarpum berries on the male genital tract of dog (Canis familiaris). A histophysiological approach. Int J Androl 5: 295–307.
- Fredrickson DS, Levy RI, Lees RS (1967): Fat transport in lipoproteins–An integrated approach to mechanisms and disorders. N Eng J Med 276: 148–156.
- Gauthaman K, Adaikan PG (2008): The hormonal effects of Tribulus terrestris and its role in the management of male erectile dysfunction-an evaluation using primates, rabbits and rats. Phytomedicine 15: 44–54.
- Gauthaman K, Adaikan PG, Prasada RNV (2002): Aphrodisiac properties of Tribulus terrestris extract (Protodioscin) in normal and castrated rats. Life Sci 71: 1385–1396.
- Gauthaman K, Adaikan PG, Prasada RNV (2003): Sexual effects of Puncturevine (Tribulus terrestris) extract (Protodioscin): An evaluation using a rat model. J Altern & Comp Med 9: 257–265.
- Gharib SD, Wierman ME, Shupnik MA, Chin WW (1990): Molecular biology of the pituitary gonadotropins. Endocr Rev 11: 177–197.
- Gonzales GF (2001): Function of seminal vesicles and their roles in male fertility. Asian J Androl 3: 251–258.
- Gornall AC, Bardawill CJ, David M.M (1949): Determination of serum protein by means of biuret reaction. J Biol Chem 177: 751–756.
- Gupta RS, Chaudhary R, Yadav RK, Verma SK, Dobhal MP (2005): Effect of saponins of Albizia lebbeck (L.) Benth bark on the reproductive system of male albino rats. J Ethnopharmacol 96: 31–36.
- Gupta RS, Kachhawa JB, Chaudhary R (2004): Antifertility effects of methanolic pod extract of Albizzia lebbeck. Asian J Androl 6: 155–159.
- Kamtchouing P, Mbongue-Fandio GY, Dimo T, Jatsa HB (2002): Evaluation of androgenic activity of Zingiber officinale and Pentadiplandra brazzeana in male rats. Asian J Androl 4: 299–301.
- Kasturi M, Manivannan B, Ahmed NR, Shaikh PD, Pattan KM (1995): Changes in epididymal structure and function of albino rat treated with Azardirachta indica leaves. Indian J Expt Biol 33: 725–729.
- Kemp A, Adrienne JM, Heijningen KV (1954): A colorimetric micro-method for the determination of glycogen in tissues. Biochem J 56: 646–648.
- Levinsky H, Sirger R, Bornet M, Sagiv M, Allolouf D (1983): Sialic acid content of human spermatozoa and seminal plasma in relation of sperm counts. Arch Androl 10:45–48.
- Mahajan BK (1997): Significance of difference in means, in: Mahajan BK, ed., Methods in Biostatistics for Medical and Research Workers. New Delhi, JAYPEE Brothers Medical Publishers, pp. 130–155.
- Mainkar AV, Naik VR, Dhuno VG, Aghsikar NV (1986): Anabolic activity of alcoholic extract of Cucumis trigonus roxburghii. Indian J Pharmacol 180: 261–262.
- Malini T, Manimaran RR, Arunakaran J, Aruldhas MM, Govindarajulu P (1999): Effect of piperine on testis of albino rats. J Ethnopharmacol 64: 219–225.
- Means AR (1975): Biochemical effects of follicle stimulating hormones on the testis, in: Greep RO, Ashwood EB, eds, Handbook of Physiology and Endocrinology. Washington DC, American Physiological Society, pp. 203–219.
- Mooradian AD, Moodley JE, Korenman SC (1987): Biological action of androgens. Endocrinol Rev 8: 11–28.
- Moundipa FP, Kamtchouing P, Koueta N, Tantchou J, Foyang NPR, Mbiapo FT (1999): Effect of aqueous extract of Hibiscus macranthus and Basella alba in mature rat testes function. J Ethnopharmacol 65: 133–139.
- O’Donnell L, McLachlan RI, Wreford NG, Robertson DM (1994): Testosterone promotes the conversion of round spermatids between stages VII and VIII of the rat spermatogenic cycle. Endocrinol 135: 2608–2614.
- Pathak S, Prakash AO (1989): Post-coital contraceptive effect of Ferula jaeschkeana Vatke. and its hormonal properties. Phytother Res 3: 61–66.
- Payne AH (1990): Hormonal regulation of cytochrome P450 enzymes, cholesterol sidechain cleavage and 17α-hydroxylase/C17-20 lyase in Leydig cells. Biol Reprod 42: 399–404.
- Protich M, Tsvetkov D, Nalbanski B, Stanislavov R, Katsarova M (1983): Clinical trial of a tribestan preparation in infertile men. Akush Ginekol (Sofia) 22: 326–329.
- Pujol J (1990): Naturafrica – the Herbalist Handbook. African Flora, Medicinal Plants. Durban, Jean Pujol Natural Healers’ Foundation, pp. 25–28.
- Ramalingam V, Vimaladevi V (2002): Effect of mercuric chloride on membrane-bound enzymes in rat testis. Asian J Androl 4: 309–311.
- Ratnasooriya WD, Dharmasiri MG (2002): Effect of Terminalia catappa seeds on sexual behaviour and fertility of male rats. Asian J Androl 2: 213–219.
- Riar SS, Setty BS, Kar AB (1973): Studies on the physiology and biochemistry of mammalian epididymis: Biochemical composition of epididymis. A comparative study. Fertil Steril 24: 353–362.
- Sinha-Hikim AP, Wang C, Leung A, Swerdloff RS (1995): Involvement of apoptosis in the induction of germ cell degeneration in adult rats after gonadotropin-releasing hormone against treatment. Endocrinology 136: 2770–2775.
- Temraz A, El Gindi OD, Kady HA, De Tommasi N, Braca A (2006): Steroidal saponins from the aerial parts of Tribulus alatus Del. Phytochemistry 67: 1011–1018.
- Van Wrk BE, Van Oudtshoorn B, Gericke N (1997): Medicinal Plants of South Africa. Pretoria, South Africa, Briza Publications, pp. 64–65.
- Walton S, Cunliffe WJ, Kaczkes K, Early AS, McGarrigle HHG, Katz M, Reese RA (1995): Clinical, ultrasound and hormonal markers of androgenicity in acne vulgaris. Br J Dermatol 133: 249–253.
- Wang C, Leung A, Sinha-Hikim AP (1993): Reproductive aging in the male Brown-Norway rat: A model for the human. Endocrinology 133: 2773–2781.
- Warren L (1959): The thiobarbituric acid assay of sialic acids. J Biol Chem 234: 1971–1975.
- Watcho P, Kamtchouing P, Sokeng SD, Moundipa PF, Tantchou J, Essame JL, Koueta N (2004): Androgenic effect of Mondia whitei roots in male rats. Asian J Androl 6: 269–272.
- Witthawaskul P, Panthong A, Kanjanapothi D, Taesothikul T, Lertprasertsuke N (2003): Acute and subacute toxicities of the saponin mixture isolated from Schefflera leucantha Viguier. J Ethnopharmacol 89: 115–121.
- Wright PJ, Leathwood PD, Plummer DT (1972a): Enzymes in rat urine. Alkaline phosphatase. Enzymologia 42: 317–327.
- Wright PJ, Leathwood PD, Plummer DT (1972b): Enzymes in rat urine. Acid phosphatase. Enzymologia 42: 459–462.
- Yakubu MT, Afolayan AJ (2009): Effect of aqueous extract of Bulbine natalensis (Baker) stem on the sexual behaviour of male rats. Int J Androl (in press) [Epub ahead of print] doi:10.1111/j. 1365-2605. 2008. 00910.x
- Yakubu MT, Akanji MA, Oladiji AT (2005): Aphrodisiac potentials of aqueous extract of Fadogia agrestis (Schweinf. ex Heirn) stem in male albino rats. Asian J Androl 7: 399–404.
- Yakubu MT, Akanji MA, Oladiji AT (2007a): Male sexual dysfunction and methods used in assessing medicinal plants with aphrodisiac potentials. Pharmacog Rev 1: 49–56.
- Yakubu MT, Akanji MA, Oladiji AT (2007b): Evaluation of antiandrogenic potential of aqueous extract of Chromolaena odoratum (L.) K. R. leaves in male rats. Andrologia 39: 235–243.
- Yakubu MT, Akanji MA, Oladiji AT, Adesokan AA (2008): Androgenic potentials of aqueous extract of Massularia acuminata (G. Don) Bullock ex Hoyl. stem in male Wistar rats. J Ethnopharmacol 118: 508–513.