1. Lee JY, Baw CK, Gupta S, Aziz N, Agarwal A. Role of oxidative stress in polycystic ovary syndrome. Curr Womens Health Rev. 2010; 6:96–107.
2. Karabulut AB, Cakmak M, Kiran RT, Sahin I. Oxidative stress status, metabolic profile and cardiovascular risk factors in patients with polycystic ovary syndrome. Med Sci (Turkey). 2012; 1:27–34.
3. Balen AH, Laven JS, Tan SL, Dewailly D. Ultrasound assessment of the polycystic ovary: international consensus definitions. Hum Reprod Update. 2003; 9:505–514.

4. Rotterdam ESHRE/ASRM-sponsored PCOS consensus workshop group. Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome. Fertil Steril. 2004; 81:19–25.
5. Macut D, Bjekić-Macut J, Savić-Radojević A. Dyslipidemia and oxidative stress in PCOS. Front Horm Res. 2013; 40:51–63.

6. Chen X, Yang D, Mo Y, Li L, Chen Y, Huang Y. Prevalence of polycystic ovary syndrome in unselected women from southern China. Eur J Obstet Gynecol Reprod Biol. 2008; 139:59–64.

7. Igwegbe AO, Eleje GU, Enechukwu CI. Polycystic ovary syndrome: a review of management outcomes in a low resource setting. J Womens Health Issues Care. 2013; 2:3.

8. Balen A, Michelmore K. What is polycystic ovary syndrome? Are national views important? Hum Reprod. 2002; 17:2219–2227.

9. Hussein B, Alalaf S. Prevalence and characteristics of polycystic ovarian syndrome in a sample of infertile Kurdish women attending IVF infertility center in maternity teaching hospital of Erbil City. Open J Obstet Gynecol. 2013; 3:577–585.

10. Joe-kechebelu NN, Mbamara SU, Ikechebelu JI. Familial trend in polycystic ovarian syndrome: report of two cases. Ann Afr Med. 2013; 12:182–184.

11. Betteridge DJ. What is oxidative stress? Metabolism. 2000; 49:3–8.

12. Desai V, Prasad NR, Manohar SM, Sachan A, Narasimha SR, Bitla AR. Oxidative stress in non-obese women with polycystic ovarian syndrome. J Clin Diagn Res. 2014; 8:CC01–03.
13. Yoshikawa T, Naito Y. What is oxidative stress? Japan Med Assoc J. 2002; 45:271–276.
14. Valko M, Leibfritz D, Moncol J, Cronin MT, Mazur M, Telser J. Free radicals and antioxidants in normal physiological functions and human disease. Int J Biochem Cell Biol. 2007; 39:44–84.

15. Vincent HK, Taylor AG. Biomarkers and potential mechanisms of obesity-induced oxidant stress in humans. Int J Obes. 2006; 30:400–418.

16. Agarwal A, Aponte-Mellado A, Premkumar BJ, Shaman A, Gupta S. The effects of oxidative stress on female reproduction: a review. Reprod Biol Endocrinol. 2012; 10:49.

17. Agarwal A, Gupta S, Sharma RK. Role of oxidative stress in female reproduction. Reprod Biol Endocrinol. 2005; 3:28.
18. Aguilar A, Alvarez-Vijande R, Capdevila S, Alcoberro J, Alcaraz A. Antioxidant patterns (superoxide dismutase, glutathione reductase, and glutathione peroxidase) in kidneys from non-heart-beating-donors: experimental study. Transplant Proc. 2007; 39:249–252.

19. Rubio CP, Hernández-Ruiz J, Martinez-Subiela S, Tvarijonaviciute A, Ceron JJ. Spectrophotometric assays for total antioxidant capacity (TAC) in dog serum: an update. BMC Vet Res. 2016; 12:166.

20. Sabuncu T, Vural H, Harma M, Harma M. Oxidative stress in polycystic ovary syndrome and its contribution to the risk of cardiovascular disease. Clin Biochem. 2001; 34:407–413.

21. Wang HF, Zhong XH, Shi WY, Guo B. Study of malondialdehyde (MDA) content, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities in chickens infected with avian infectious bronchitis virus. Afr J Biotechnol. 2011; 10:9213–9217.
22. Fisher RA. The logic of inductive inference. J R Stat Soc. 1935; 98:39–82.

23. World Health Organization. Waist circumference and waist-hip ratio: report of a WHO expert consultation, Geneva, 8–11 December 2008 [Internet]. Geneva: World Health Organization;c2011. cited 2017 May 18. Available from:
http://www.who.int/iris/handle/10665/44583.
24. Zhang D, Luo WY, Liao H, Wang CF, Sun Y. The effects of oxidative stress to PCOS. Sichuan Da Xue Xue Bao Yi Xue Ban. 2008; 39:421–423.
25. Kuşçu NK, Var A. Oxidative stress but not endothelial dysfunction exists in non-obese, young group of patients with polycystic ovary syndrome. Acta Obstet Gynecol Scand. 2009; 88:612–617.

26. Yilmaz N, Inal HA, Gorkem U, Sargin Oruc A, Yilmaz S, Turkkani A. Follicular fluid total antioxidant capacity levels in PCOS. J Obstet Gynaecol. 2016; 36:654–657.

27. Dos Santos ACS, Azevedo GD, Lemos TMAM. The influence of oxidative stress in inflammatory process and insulin resistance in obese women with polycystic ovary syndrome. Transl Biomed. 2016; 7:4.

28. Fadhil JA, Nada NA, Wasan GA. Total antioxidant capacity and homocysteine levels in obese women with polycystic ovary syndrome. Int J Pharm Pharm Res. 2017; 8:78–86.
29. Manikkumar R, Dinesh Roy D, Krishnan V, Vijayakumar T. Association of DNA damage and dyslipidemia with polycystic ovarian syndrome. J Med Allied Sci. 2013; 3:15–21.
30. Wild RA, Rizzo M, Clifton S, Carmina E. Lipid levels in polycystic ovary syndrome: systematic review and meta-analysis. Fertil Steril. 2011; 95:1073–1079.e1-11.

31. Wild RA, Carmina E, Diamanti-Kandarakis E, Dokras A, Escobar-Morreale HF, Futterweit W, et al. Assessment of cardiovascular risk and prevention of cardiovascular disease in women with the polycystic ovary syndrome: a consensus statement by the Androgen Excess and Polycystic Ovary Syndrome (AE-PCOS) Society. J Clin Endocrinol Metab. 2010; 95:2038–2049.

32. Ahmed Alobaidi AH, Abrahem MK, Ahmad SS, Alsamarai AM. Dyslipidemia and oxidative stress in Iraqi women with poly cystic ovary syndroms. World J Pharm Pharm Sci. 2015; 4:39–48.
33. Kim JJ, Choi YM. Dyslipidemia in women with polycystic ovary syndrome. Obstet Gynecol Sci. 2013; 56:137–142.

34. Balen A. The pathophysiology of polycystic ovary syndrome: trying to understand PCOS and its endocrinology. Best Pract Res Clin Obstet Gynaecol. 2004; 18:685–706.

35. Mosca L. Guidelines for prevention of cardiovascular disease in women: a summary of recommendations. Prev Cardiol. 2007; 10:Suppl 4. 19–25.

36. ACOG Committee on Practice Bulletins--Gynecology. ACOG practice bulletin No. 108: polycystic ovary syndrome. Obstet Gynecol. 2009; 114:936–949.
37. Domecq JP, Prutsky G, Mullan RJ, Hazem A, Sundaresh V, Elamin MB, et al. Lifestyle modification programs in polycystic ovary syndrome: systematic review and meta-analysis. J Clin Endocrinol Metab. 2013; 98:4655–4663.
