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Effect of cryopreservation on some sperm parameters of infertile patients
تاثير الحفظ بالقري على بعض معايير النطف للمرضى العقيميين

Authors: محمد باقر محمد رشاد --- اسراء مجيد رشيد
Journal: Iraqi Journal of Embryos and Infertility Researches المجلة العراقية لبحوث الأجنة والعقم ISSN: eISSN: 26166984 / pISSN: 22180265 Year: 2013 Volume: 3 Issue: 5 Pages: 9-15
Publisher: Al-Nahrain University جامعة النهرين


Background:Alt men have the natural desire to have their own biological children. Cryopreservation of male gametes is an important aspect of human fertility preservation. With the advancement in assisted reproductive technology, indication for sperm cryopreservation is expanding.Objectives:To evaluate the effect of cryopreservation by using Sperm Freeze TM kit on some sperm parameters for infertile patients.Materials and methods:Ninety five semen samples were taken from male patients. The seminal fluid analysis was performed according to the standard criteria of WHO (1999). The patients were divided into four groups depending on their sperm concentration and motility: Normozoospermic, oligozoospermic, asthenozoospermic and oligoasthenozoospermic patients. Cryopreservation in liquid nitrogen was done by using Sperm Freeze TM kit for the samples and thawing was performed after three months.Results:In general, the post-thawing study revealed a considerable highly significant (P <0.001) decrease in the sperm parameters which include the means of sperm concentration. sperm motility, progressive motility and normal sperm morphology as compared to that of pre-cryopreservation. Whereas the percentage of immotile sperm was highly significant (p<0.05) increase as compared to pre-cryopreservation in all groups except for oligozoospermic patients in which there was a significant (p<0.05) increase.Conclusions:After semen cryopreservation, all parameters were significantly decreased.

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