4Smith R,Kaune H,Parodi D,et al.Extent of sperm DNA damage in spermatozoa from men examined for infertility Relationship with oxidative stress.Rev Med Chile 2007;135:279-286.
5Tremellen K.Oxidative stress and male infertilitv-a clinical perspective.Human Reprod Update,2008,14(3):243-258.
7Aitken RJ,Baker MA.Oxidative stress and male reproductive biology.Reprod Fertility Development,2004,16:581-588.
8Lanzafame FM,Vegnera SL,Vicari E,et al.Oxidative stress and medical antioxidant treatment in male infertility.Reproductive Bio Medicine online,2009,19(5):638-659.
9Cocuzza M,Sikka SC,Athayde KS,et al.Clinical relevance of oxidative stress and sperm chromatin damage in male infertility:An evidence based analysis.Int Braz J Urol,2007,33(5):6O3-621.
10Smith S,Kaune H,Parodi D,et al.Increased sperm DNA damage in patients with varicocele:relationship with seminal oxidative stress.Human Reproduction,2006,21(4):986-993.
8de Lamirande E, Gagnon C. Impact of reactive oxygen species on spermatozoa: a balancing act between beneficial and detrimental effects. Hum Reprod, 1995,10 ( Suppl 1 ) : 15- 21.
9Sergerie M, Laforest G, Boulanger K, et al. Longitudinal study of sperm DNA fragmentation as measured by terminal uridine nick eng - labelling assay. Hum Reprod ,2005,20 ( 7 ) : 1921 - 1927.
2Mosher WD, Pratt WF. Fecundity and infertility in theUnited States: incidence and trends. Fertil Steril 1991;56(2): 192-193.
3Thonneau P, Marchand S,Tallec A, et al. Incidence andmain causes of infertility in a resident population(1, 850, 000) of three French regions (1988-1989). HumReprod 1991; 6(6): 811-816.
4Agarwal A, Allamaneni SS. Sperm DNA damage assessment:a test whose time has come. Fertil Steril 2005; 84(4): 850-853.
5Shamsi MB, Kumar R, Dada R. Evaluation of nuclearDNA damage in human spermatozoa in men opting forassisted reproduction. Indian J Med Res 2008; 127(2):115-123.
6Bungum M, Humaidan P, Axmon A, et al. Sperm DNAintegrity assessment in prediction of assisted reproductiontechnology outcome. Hum Reprod 2007; 22(1): 174-179.
7World Health Organisation. WHO Laboratory Manualfor the Examination and Processing of Human Semen.5th ed.Geneva: World Health Organization, 2010.
8Chohan KR, Griffin JT, Lafromboise M, et al. Comparisonof chromatin assays for DNA fragmentation evaluationin human sperm. J Androl 2006; 27(1): 53-59.
9Ahmadi A, Ng SC. Fertilizing ability of DNA-damagedspermatozoa. J Exp Zool 1999; 284(6): 696-704.
10Host E,Lindenberg S,Kahn JA,et al. DNA strandbreaks in human sperm cells: a comparison between menwith normal and oligozoospermic sperm samples. ActaObstet Gynecol Scand 1999; 78(4): 336-339.