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Title

DEVELOPMENTAL CONSEQUENCES OF MOUSE CRYOTOP-VITRIFIED OOCYTE AND EMBRYO USING LOW CONCENTRATED CRYOPROTECTANTS

Pages

  181-188

Abstract

 Background: The risk of multiple pregnancies, often present in programs of In Vitro Fertilization (IVF), is an important force for EMBRYO cryopreservation. On the other hand, ethical restriction and assurance of potential fertility following chemo/radio therapy has led scientists to focus on female gamete preservation. Objective: Optimizing VITRIFICATION protocol by using less concentrated CRYOPROTECTANTs (CPAs) in order to decrease CPAs toxicity.  Materials and Methods: MOUSE Metaphase-II (M-II) OOCYTEs and four cell-stage EMBRYOs were collected. OOCYTEs Survival, Fertilization and Developmental Rates (SRs, FRs, DRs) were recorded after CRYOTOP-vitrification/warming. As well as comparing fresh OOCYTEs and EMBRYOs, the data obtained from experimental groups (exp.) applying 1.25, 1.0, 0.75 molar (M) CPAs were analyzed in comparison to those of adopting 1.5 M CPAs [largely-used concentration of Ethylen Glycol (EG) and Dimethyl-sulphoxide (DMSO)].Results: The data of OOCYTEs exposed to 1.25 M concentrated CPAs were in consistency with those exposed to 1.5 M and control group in terms of SR, FR and DR. As less concentration was applied, the more decreased SRs, FRs and DRs were obtained from other experimental groups. The results of EMBRYOs which were exposed to 1.25 M and 1.0 M were close to those vitrified with 1.5 M and fresh EMBRYOs. The results of 0.75 M concentrated CPAs solutions were significantly lower than those of control, 1.5 M and 1.0 M treated groups.Conclusion: CPAs limited reduction to 1.25 M and 1.0 M instead of using 1.5 M, for OOCYTE and EMBRYO CRYOTOP-vitrification procedure may be a slight adjustment.

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    APA: Copy

    ALMASI TORK, S., ROUZBEHI, A.A., ALIABADI, E., HAERI, A., SADEGHI, YOUSEF, & HOSSEINI, AHMAD. (2009). DEVELOPMENTAL CONSEQUENCES OF MOUSE CRYOTOP-VITRIFIED OOCYTE AND EMBRYO USING LOW CONCENTRATED CRYOPROTECTANTS. INTERNATIONAL JOURNAL OF REPRODUCTIVE BIOMEDICINE (IRANIAN JOURNAL OF REPRODUCTIVE MEDICINE), 7(4), 181-188. SID. https://sid.ir/paper/295470/en

    Vancouver: Copy

    ALMASI TORK S., ROUZBEHI A.A., ALIABADI E., HAERI A., SADEGHI YOUSEF, HOSSEINI AHMAD. DEVELOPMENTAL CONSEQUENCES OF MOUSE CRYOTOP-VITRIFIED OOCYTE AND EMBRYO USING LOW CONCENTRATED CRYOPROTECTANTS. INTERNATIONAL JOURNAL OF REPRODUCTIVE BIOMEDICINE (IRANIAN JOURNAL OF REPRODUCTIVE MEDICINE)[Internet]. 2009;7(4):181-188. Available from: https://sid.ir/paper/295470/en

    IEEE: Copy

    S. ALMASI TORK, A.A. ROUZBEHI, E. ALIABADI, A. HAERI, YOUSEF SADEGHI, and AHMAD HOSSEINI, “DEVELOPMENTAL CONSEQUENCES OF MOUSE CRYOTOP-VITRIFIED OOCYTE AND EMBRYO USING LOW CONCENTRATED CRYOPROTECTANTS,” INTERNATIONAL JOURNAL OF REPRODUCTIVE BIOMEDICINE (IRANIAN JOURNAL OF REPRODUCTIVE MEDICINE), vol. 7, no. 4, pp. 181–188, 2009, [Online]. Available: https://sid.ir/paper/295470/en

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