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. 2008 May;25(5):197-203.
doi: 10.1007/s10815-008-9223-4. Epub 2008 May 16.

Evaluation of sperm selection procedure based on hyaluronic acid binding ability on ICSI outcome

M H Nasr-Esfahani  1 , S Razavi, A A Vahdati, F Fathi, M Tavalaee
Affiliations

Evaluation of sperm selection procedure based on hyaluronic acid binding ability on ICSI outcome

M H Nasr-Esfahani et al. J Assist Reprod Genet. 2008 May.

Abstract

Purpose: To compare the efficiency of routine sperm selection method with HA-selection procedure for fertilization rate, embryo development, implantation and pregnancy rates as well as evaluating the relationship between HA-binding ability with sperm protamine deficiency and DNA fragmentation.

Methods: Semen samples were obtained from the 50 couples undergoing ICSI. The percentage of fertilization rate, cleavage and quality of embryos compared between two procedures (routine sperm selection and HA-binding selection). The semen samples were assessed for DNA fragmentation and protamine deficiency by sperm chromatin dispersion (SCD) test and Chromomycin A3 (CMA3) staining, respectively.

Results: A significant inverse correlation was observed between percentage of HA binding with protamine deficiency, DNA fragmentation and abnormal sperm morphology (P < 0.05). Furthermore, in current study, oocytes inseminated by HA sperm selection procedure had significantly higher fertilization rate (P < 0.05). While the pregnancy and implantation rates were insignificantly increased.

Conclusion: The results suggest that normal sperm have higher chance to bind HA and therefore, HA sperm selection procedure may select sperm with normal protamine content and low DNA fragmentation, but to confirm the effect of HA sperm selection on the ICSI outcome requires further studies.

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Figures

Fig. 1
Fig. 1
Shows percentage of implantation (white columns) and pregnancy (black columns) in patients receiving embryos derived from HA selection, routine ICSI or from both procedure (HA/ICSI)
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