TIMING OF THE FIRST ZYGOTIC CLEAVAGE AFFECTS POST-VITRIFICATION VIABILITY OF MURINE EMBRYOS PRODUCED IN VIVO

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WAN JUSOF WAN HAFIZAH; MOHAMED NOOR KHAN NOR ASHIKIN; RAJIKIN MOHD HAMIM; ABDUL SATAR NURALIZA; MUSTAFA MOHD FAZIRUL; JUSOH NORHAZLIN; DASIMAN RAZIF

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Journal: International Journal of Fertility & Sterility Year:2015 | Volume:9 | Issue:2 Page(s): 221-229

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Title

TIMING OF THE FIRST ZYGOTIC CLEAVAGE AFFECTS POST-VITRIFICATION VIABILITY OF MURINE EMBRYOS PRODUCED IN VIVO

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Keywords

VITRIFICATION

EARLY CLEAVAGE

MOUSE EMBRYOS

Abstract

Background: Timing of the first zygotic cleavage is an accurate predictor of embryo quality. Embryos that cleaved early (EC) have been shown to exhibit higher developmental viability compared to those that cleaved at a later period (LC). However, the viability of EC embryos in comparison to LC embryos after VITRIFICATION is unknown. The present study aims to investigate the post-VITRIFICATION developmental viability of murine EC versus LC embryos.Materials and Methods: In this experimental study, female ICR mice (6-8 weeks old) were superovulated and cohabited with fertile males for 24 hours. Afterwards, their oviducts were excised and embryos harvested. Embryos at the 2-cell stage were categorized as EC embryos, while zygotes with two pronuclei were categorized as LC embryos. Embryos were cultured in M16 medium supplemented with 3% bovine serum albumin (BSA) in a humidified 5% CO2 atmosphere. Control embryos were cultured until the blastocyst stage without VITRIFICATION. Experimental embryos at the 2-cell stage were vitrified for one hour using 40% v/v ethylene glycol, 18% w/v Ficoll-70 and 0.5 M sucrose as the cryoprotectant. We recorded the numbers of surviving embryos from the control and experimental groups and their development until the blastocyst stage. Results were analyzed using the chi-square test.Results: A significantly higher proportion of EC embryos (96.7%) from the control group developed to the blastocyst stage compared with LC embryos (57.5%, P<0.0001). Similarly, in the experimental group, a significantly higher percentage of vitrified EC embryos (69.4%) reached the blastocyst stage compared to vitrified LC embryos (27.1%, P<0.0001).Conclusion: Vitrified EC embryos are more VITRIFICATION tolerant than LC embryos. Preselection of EC embryos may be used as a tool for selection of embryos that exhibit higher developmental competence after VITRIFICATION.

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APA: Copy

WAN JUSOF, WAN HAFIZAH, MOHAMED NOOR KHAN, NOR ASHIKIN, RAJIKIN, MOHD HAMIM, ABDUL SATAR, NURALIZA, MUSTAFA, MOHD FAZIRUL, JUSOH, NORHAZLIN, & DASIMAN, RAZIF. (2015). TIMING OF THE FIRST ZYGOTIC CLEAVAGE AFFECTS POST-VITRIFICATION VIABILITY OF MURINE EMBRYOS PRODUCED IN VIVO. INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY, 9(2), 221-229. SID. https://sid.ir/paper/305809/en

Vancouver: Copy

WAN JUSOF WAN HAFIZAH, MOHAMED NOOR KHAN NOR ASHIKIN, RAJIKIN MOHD HAMIM, ABDUL SATAR NURALIZA, MUSTAFA MOHD FAZIRUL, JUSOH NORHAZLIN, DASIMAN RAZIF. TIMING OF THE FIRST ZYGOTIC CLEAVAGE AFFECTS POST-VITRIFICATION VIABILITY OF MURINE EMBRYOS PRODUCED IN VIVO. INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY[Internet]. 2015;9(2):221-229. Available from: https://sid.ir/paper/305809/en

IEEE: Copy

WAN HAFIZAH WAN JUSOF, NOR ASHIKIN MOHAMED NOOR KHAN, MOHD HAMIM RAJIKIN, NURALIZA ABDUL SATAR, MOHD FAZIRUL MUSTAFA, NORHAZLIN JUSOH, and RAZIF DASIMAN, “TIMING OF THE FIRST ZYGOTIC CLEAVAGE AFFECTS POST-VITRIFICATION VIABILITY OF MURINE EMBRYOS PRODUCED IN VIVO,” INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY, vol. 9, no. 2, pp. 221–229, 2015, [Online]. Available: https://sid.ir/paper/305809/en

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