1. Wiweko B, Anggraheni U, Elvira SD, Lubis HP. Distribution of stress level among infertility patients. Middle East Fertil Soc J 2017; 22(2): 145-8.

2. Cooper TG, Noonan E, von Eckardstein S, Auger J, Baker HG, Behre HM, et al. World Health Organization reference values for human semen characteristics. Hum Reprod Update 2010; 16(3): 231-45.

3. Ayaz A, Kothandaraman N, Henkel R, Sikka SC. Impact of environmental factors on the genomics and proteomics landscapes of male infertility. Bioenvironmental Issues Affecting Men's Reproductive and Sexual Health: Elsevier; 2018. p. 335-53.

4. Zhang XF, Liu ZG, Shen W, Gurunathan S. Silver nanoparticles: synthesis, characterization, properties, applications, and therapeutic approaches. Int J Mol Sci 2016; 17(9): 1534.

5. Morishita Y, Yoshioka Y, Satoh H, Nojiri N, Nagano K, Abe Y, et al. Distribution and histologic effects of intravenously administered amorphous nanosilica particles in the testes of mice. Biochem Biophys Res Commun 2012; 420(2): 297-301.

6. Zhang XF, Gurunathan S, Kim JH. Effects of silver nanoparticles on neonatal testis development in mice. Int J Nanomed 2015; 10: 6243.

7. Asare N, Instanes C, Sandberg WJ, Refsnes M, Schwarze P, Kruszewski M, et al. Cytotoxic and genotoxic effects of silver nanoparticles in testicular cells. Toxicology 2012; 291(1-3): 65-72.

8. Kao SH, Chao HT, Chen HW, Hwang TI, Liao TL, Wei YH. Increase of oxidative stress in human sperm with lower motility. Fertil Steril 2008;89(5):1183-90.

9. Goto Y, Noda Y, Narimoto K, Umaoka Y, Mori T. Oxidative stress on mouse embryo development in vitro. Free Radic Biol Med 1992;13(1):47-53.

10. Gharagozloo P, Aitken RJ. The role of sperm oxidative stress in male infertility and the significance of oral antioxidant therapy. Hum Reprod 2011; 26(7): 1628-40.

11. Iannuzzi J. ROYAL JELLY-MYSTERY FOOD. 3. Am Bee J 1990; 130(10): 659-62.

12. Šimúth J. Some properties of the main protein of honeybee (Apis mellifera) royal jelly. Apidologie 2001; 32(1): 69-80.

13. El-Nekeety AA, El-Kholy W, Abbas NF, Ebaid A, Amra HA, Abdel-Wahhab MA. Efficacy of royal jelly against the oxidative stress of fumonisin in rats. Toxicon 2007; 50(2): 256-69

14. Al-Sanafi AE, Mohssin SA, Abdulla SM. Effect of royal jelly on male infertility. Thi-Qar Med J 2007; 1(1): 1-12.

15. Boselli E, Caboni MF, Sabatini AG, Marcazzan GL, Lercker G. Determination and changes of free amino acids in royal jelly during storage. Apidologie 2003; 34(2): 129-37.

16. Yang A, Zhou M, Zhang L, Xie G, Chen H, Liu Z, et al. Influence of royal jelly on the reproductive function of puberty male rats. Food Chem Toxicol 2012; 50(6): 1834-40.

17. Elnagar SA. Royal jelly counteracts bucks’“summer infertility”. Anim Reprod Sci 2010; 121(1-2): 174-80.

18. Abd-Allah SM. Effect of royal jelly on the fertilizing ability of buffalo spermatozoa in vitro. J Buffalo Sci 2012; 1(1): 1-4.

19. Attia A. Evaluation of the testicular alterations induced by silver nanoparticles in male mice: Biochemical, histological and ultrastructural studies. Res J Pharm Biol Chem Sci 2014; 5(4): 15581589.

20. Gawish AM, ElFiky S, Therase M, AbdElraaof A, Khalil W, Mohamed KA. Sperm abnormality toxicity due to cyclosporine A and the ameliorative effect of royal jelly in male rats. J Basic Appl Zool 2016; 76: 60-73.

21. Noorafshan A, Karbalay-Doust S, Valizadeh A, Aliabadi E, Mirkhani H. Ameliorative Effects of Curcumin on the Seminiferous Epithelium in Metronidazole-Treated Mice A Stereological Study. Toxicol Pathol 2010; 38(3): 366-71.

22. Mehranjani MS, Noorafshan A, Momeni H, Abnosi M, Mahmoodi M, Anvari M, et al. Stereological study of the effects of vitamin E on testis structure in rats treated with para-nonylphenol. Asian J Androl 2009; 11(4): 508-16.

23. Esterbauer H, Cheeseman KH. Determination of aldehydic lipid peroxidation products: malonaldehyde and 4-hydroxynonenal. Methods in enzymology: Elsevier; 1990. p. 407-21.

24. Duplancic D, Kukoc-Modun L, Modun D, Radic N. Simple and rapid method for the determination of uric acid-independent antioxidant capacity. Molecules 2011; 16(8): 7058-67.

25. Ghanbari E, Nejati V, Najafi G, Khazaei M, Babaei M .Study on the effect of royal jelly on reproductive parameters in streptozotocin-induced diabetic rats. Int J Fertil Steril 2015; 9(1): 113.

26. Aydos K, Güven M, Can B, Ergün A. Nicotine toxicity to the ultrastructure of the testis in rats. BJU International 2001; 88(6): 622-6.

27. Azad F, Najati V, Najafi G, Rahmani F. The Protective Effect of Royal Jelly on Testicular Tissue and Sperm Parameters in Adult Mice Treated with Nicotine. J Babol Uni Med Sci 2018; 20(3): 50-58.

28. Almansour M, Jarrar Q, Battah A, Jarrar G. Histomorphmetric alterations induced in the testicular tissues by variable sizes of silver nanoparticles. Press, J Rep Med 2015.

29. Reidy B, Haase A, Luch A, Dawson K, Lynch I. Mechanisms of silver nanoparticle release, transformation and toxicity: a critical review of current knowledge and recommendations for future studies and applications. Materials 2013; 6(6): 2295-350.

30. Ahamed M, Karns M, Goodson M, Rowe J, Hussain SM, Schlager JJ, et al. DNA damage response to different surface chemistry of silver nanoparticles in mammalian cells. Toxicol Appl Pharmacol 2008; 233(3): 404-10.

31. Silici S, Ekmekcioglu O, Kanbur M, Deniz K. The protective effect of royal jelly against cisplatin-induced renal oxidative stress in rats. World J Urol 2011; 29(1): 127-32.

32. Garcia TX, Costa GM, Franca LR, Hofmann MC. Sub-acute intravenous administration of silver nanoparticles in male mice alters Leydig cell function and testosterone levels. Reprod Toxicol 2014; 45: 59-70.

33. Hassan A. Effect of royal jelly on sexual efficiency in adult male rats. Iraqi J Vet Sci 2009; 23.

34. Kobayashi T, Kobayashi T, Kato J, Minaguchi H. Fluctuations in choline acetylase activity in hypothalamus of rat during estrous cycle and after castration. Endocrinol Jpn 1963; 10(3): 175-82.

35. Hunt CD, Johnson PE, Herbel J, Mullen LK. Effects of dietary zinc depletion on seminal volume and zinc loss, serum testosterone concentrations, and sperm morphology in young men. Am J Clin Nutr 1992; 56(1): 148-57.

36. Ebisch I, Pierik F, De Jong F, Thomas C, Steegers‐Theunissen R. Does folic acid and zinc sulphate intervention affect endocrine parameters and sperm characteristics in men? Int J Androl 2006; 29(2): 339-45.

37. Miresmaeili SM, Halvaei I, Fesahat F, Fallah A, Nikonahad N, Taherinejad M. Evaluating the role of silver nanoparticles on acrosomal reaction and spermatogenic cells in rat. Iran J Reprod Med 2013; 11(5): 423.