Cover
Vol. 4 No. 1 (2014)

Published: July 31, 2014

Pages: 1-12

Research Article

Effect of cryopreservation protocols in relation to human sperm parameters

Abstract

Background: The semen cryopreservation has an important role in the male fertility preservation. Certainly, patients who are prone to become infertile due to surgical or medical treatments such as chemo- or radiotherapy for cancer treatment. In fact, semen cryostorage seems to be the only proven method that may offer these couples a chance of having children in the future. Objectives: This study was aimed to investigate the effects of cryopreservation protocols on human sperm parameters. Methods: Sixty semen samples with range of age (19-35) years were included in this study. Sperm parameters, were assessed pre- or post-cryopreservation. Cryopreservation protocols were done using SMART medium with either 15% dimethyl sulfoxide(DMSO) or 15% glycerol alone (as control group) or supplemented with either 0.25M or 0.5M of sucrose for treated groups. Crude data were statistically analyzed. Results: Generally, the results of the present study showed that the sperm parameters were significantly deteriorated post-thawing (P<0.05) as compared to precryopreservation. Both treated groups (G2 and G3) showed best results as compared to G1 (control groups). In contrast, treated group (G2) with 0.25 M of sucrose appeared better results than the as G3 group that treated with 0.5M of sucrose. Conclusion: Sperm parameters including concentration, motility, and morphology were deteriorated after cryopreservation. Using 0.25M sucrose reduced the impact of cryopreservation.

References

  1. Sibert L, Rives N, Rey D, Mace B. and Grise P. Semen cryopreservation after orchidectomy in men with testicular cancer. 1999; 84: 1038-1042.
  2. Anger JT, Gilbert B.R. and Goldstein M. Cryopreservation of sperm: indications, methods and results. J. Urol. 2003; 170: 1079-1084
  3. Sherman JK. Synopsis of the use of frozen human semen since: state of the art of human semen banking, Fertility and Sterility. 1964; 24(5): 397-412,
  4. Allan DJ, Harmon BV, Kerr JFR. Cell death in spermatogenesis. In: Porter CS, ed. Perspective on Mammalian Cell Death. Oxford, UK: Oxford University Press: 1987;229-258.
  5. Peirouvi T, Farjah G, Rad JS,et al. Vitrification induced apoptosis in spermatozoa from fertile and subfertile men. Iran J Reprod Med 2007;5: 117-120.
  6. Ozkavukcu S, Erdemli E, Isik A, et al. Effects of cryopreservation on sperm parameters and ultrastructural morphology of human spermatozoa. J Assist Reprod Genet. 2008;25: 403-411.
  7. Correa LM, Thomas A, Meyers SA. The macaque sperm actin cytoskeleton reorganizes in response to osmotic stress and contributes to morphological defects and decreased motility. Biol Reprod 2007; 77:942-953.
  8. Fabbri R, Ciotti P, Tommaso BD, et al. Tecnichedi crioconservazione riproduttiva. Rivista Italiana di Ostetriciae Ginecologia.2004; 3: 33-41.
  9. Duncan, D B. Multiple range and multiple F tests. Biometrics. 1955; 11:1-42,.lysis
  10. Leibo S P. A one step method for direct non-surgical transfer of frozen thawed bovine embryos, Theriogenology 1984;21:767-790.
  11. Fakhrildin MB. Flayyih NK. A new simple medíum for in vitro sperm activation of asthenozoospermic patients using direct swim-up technique. Kufa medical journal.2011;14(1):67-75.
  12. Aljuaifri A.I.Effect of nitroglycerin on fertilization and early embryonic development in sheep. M.Sc. Thesis, College of Agriculture,Baghdad university. 2011;71
  13. Chian RC.Cryobiology:an overview. In:Chian RC and Quinn P.Editors. Fertility Cryopreservation. CambridgeUniversityPress.2010:P19.http://dx.doi.org/10.1 017/CBO9780511730207.002
  14. Sum AK and de Pablo JJ.Molecular Simulation Study on the Influence of Dimethylsulfoxide on the Structure of Phospholipids bilayers. Biophys J.2003; 85(6): 3636-3645.
  15. Fiser, P. S. and Fairfull R. W. Combined effects of glycerol concentration, cooling, velocity, and osmolality of skim milk diluents on cropreservation of ram spermatozoa. Theriogenol. 1986;25:473-484.
  16. Nawroth F, Rahimi G, Isachenko, E, et al. Cryopreservation in assisted reproductive technology: new trends. Semin Reprod. Med. 2005; 23:325-335.
  17. Stanic P, Tandara M, Sonicki Z, et al. Comparison of protective media and freezing techniques for cryopreservation of human semen. European Journal of Obstetrics Gynecology and Reproductive Biolog. 2000; 91:(1):65-70.
  18. Mui?o-Blanco T, Pérez-Pé R, Cebri?n-Pérez J. Seminal Plasma Proteins and Sperm Resistance to Stress. Reprod Domest Anim 2008; 43: 18-31.
  19. Taylor K, Roberts P, Sanders K, Burton P. Effect of antioxidant supplementation of cryopreservation medium on post-thaw integrity of human spermatozoa. Reproductive BioMedicine on line 2009; 18: 184-189.