References

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Antonio, J., J. Uelmen, R. Rodriguez and C. Earnest, 2000. The effects of Tribulus terrestris on body composition and exercise performance in resistance-trained males. Int. J. Sport Nutr. Exercise Metabo., 10: 208-215.
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Arcasoy, H.B., A. Erenmemisoglu, Y. Tekol, S. Kurucu and M. Kartal, 1998. Effect of Tribulus terrestris L. saponin mixture on some smooth muscle preparations: A preliminary study. Bollettino Chimico Farmaceutico, 137: 473-475.
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Arsyad, K.M., 1996. Effect of protodioscin on the quantity and quality of sperms from males with moderate idiopathic oligozoospermia. Medika, 22: 614-618.

Brown, G.A., M.D. Vukovich, E.R. Martini, M.L. Kohut, W.D. Franke, D.A. Jackson and D.S. King, 2001. Effects of androstenedione-herbal supplementation on serum sex hormone concentrations in 30- to 59-years-old men. Int. J. Vitamin Nutr. Res., 71: 293-301.
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Brown, G.A., M.D. Vukovich, T.A. Reifenrath, N.L. Uhl, K.A. Parsons, R.L. Sharp and D.S. King, 2000. Effects of anabolic precursors on serum testosterone concentrations and adaptations to resistance training in young men. Int. J. Sport Nutr. Exercise Metab., 10: 340-359.
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El-Tantawy, W.H., A. Temraz and O.D. El-Gindi, 2007. Free serum testosterone level in male rats treated with Tribulus alatus extracts. Int. Braz J. Urol, 33: 554-558.
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Gauthaman, K. and A.P. Ganesan, 2008. The hormonal effects of Tribulus terrestris and its role in the management of male erectile dysfunction-an evaluation using primates, rabbit and rat. Phytomedicine, 15: 44-54.
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Gauthaman, K., A.P. Ganesan and R.N. Prasad, 2003. Sexual effects of puncturevine (Tribulus terrestris) extract (protodioscin): An evaluation using a rat model. J. Altern. Complementary Med., 9: 257-265.
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Gauthaman, K., P.G. Adaikan and R.N.V. Prasad, 2002. Aphrodisiac properties of Tribulus terrestris extract (Protodioscin) in normal and castrated rats. Life Sci., 71: 1385-1396.
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Kianbakht, S. and F. Jahaniani, 2003. Evaluation of antibacterial activity of tribulus terrestris l. growing in Iran. Iranian J. Pharmacol. Therapeutics, 2: 22-24.

Kohut, M.L., J.R. Thompson, J. Campbell, G.A. Brown, M.D. Vukovich, D.A. Jackson and D.S. King, 2003. Ingestion of a dietary supplement containing dehydroepiandrosterone (DHEA) and androstenedione has minimal effect on immune function in middle-aged men. J. Am. Coll. Nutr., 22: 363-371.
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Laws, S.C., J.M. Ferrell, T.E. Stoker, J. Schmid and R.L. Cooper, 2000. The effects of atrazine on female wistar rats: An evaluation of the protocol for assessing pubertal development and thyroid function. Toxicol Sci., 58: 366-376.
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Martino-Andrade, A.J., R.N. Morais, K.M. Spercoski, S.C. Rossi and M.F. Vechi et al., 2010. Effects of Tribulus terrestris on endocrine sensitive organs in male and female Wistar rats. J. Ethnopharmacol., 127: 165-170.
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Neychev, V.K. and V.I. Mitev, 2005. The aphrodisiac herb Tribulus terrestris does not influence the androgen production in young men. J. Ethnopharmacol., 101: 319-323.
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Olfert, E.D., B.M. Cross and A.A. McWilliam, 1993. Guide to the Care and Use of Experimental Animals. Vol. 1, 2nd Edn., Canadian Council on Animal Care, Ontario, Canada, Pages: 211.