Volume 64, Issue 6 (3 2006)                   Tehran Univ Med J 2006, 64(6): 27-36 | Back to browse issues page

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S. Sayadi, M. Akbari, A. Sobhani, F. Abolhasani, N. Takzare, Pasbakhsh P. The effect of different doses of hyaluronan on sperm morphology, motility, vitality and fertilization capability in mouse. Tehran Univ Med J. 2006; 64 (6) :27-36
URL: http://tumj.tums.ac.ir/article-1-933-en.html
Abstract:   (4734 Views)

Background: Hyaluronan has an important role on the permeability and motility of sperm and the interaction of gametes and these can play a considerable role on the fertility rate. Therefore, in this study, we assessed the effect of different doses of hyaluronan on the morphology, motility, vitality and fertility rate of mice.

Methods: We used 40 mice (6-8 week) in this study which twenty of them were male and the rest were female. The sperm of each male mouse were divided into four groups. The group 1 (control): They were maintained in RPMI media without any hyaluronan supplementation for 2 hour. Hyaluronan with the doses of 750, 1000 and 1250 µg/ml were added into RPMI media in groups 2, 3 and 4, respectively. After 2 hour. incubation, the numbers of sperms were assessed, using haemocytometer. Also, their morphology with papanicolaeu staining and their vitality with Eosin B dye were assessed. As well as sperms motility measured under inverted microscope by observation and fertility rate evaluated after routine IVF by counting two-cell stage embryos.

Results: Our results demonstrated that, the dose of 750 µ g/ml has the greatest effect on the motility, vitality and fertility rate of sperms. The effect of dose of 1000 µ g/ml also was positive on them. On the other hand, none of these doses had any effect on sperm morphology.

Conclusion: Hyaluronan may have an influence on motility, vitality and fertility rate of sperms and the dose of 750µ g/ml had a significant effect on these factors.

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