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Vitrification of Mouse Embryos Using the Thin Plastic Strip Method

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Date 2013 Jan 25
PMID 23346525
Citations 2
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Abstract

Objective: The aim of this study was to compare vitrification optimization of mouse embryos using electron microscopy (EM) grid, cryotop, and thin plastic strip (TPS) containers by evaluating developmental competence and apoptosis rates.

Methods: Mouse embryos were obtained from superovulated mice. Mouse cleavage-stage, expanded, hatching-stage, and hatched-stage embryos were cryopreserved in EM grid, cryotop, and TPS containers by vitrification in 15% ethylene glycol, 15% dimethylsulfoxide, 10 µg/mL Ficoll, and 0.65 M sucrose, and 20% serum substitute supplement (SSS) with basal medium, respectively. For the three groups in which the embryos were thawed in the EM grid, cryotop, and TPS containers, the thawing solution consisted of 0.25 M sucrose, 0.125 M sucrose, and 20% SSS with basal medium, respectively. Rates of survival, re-expansion, reaching the hatched stage, and apoptosis after thawing were compared among the three groups.

Results: Developmental competence after thawing of vitrified expanded and hatching-stage blastocysts using cryotop and TPS methods were significantly higher than survival using the EM grid (p<0.05). Also, apoptosis positive nuclei rates after thawing of vitrified expanded blastocysts using cryotop and TPS were significantly lower than when using the EM grid (p<0.05).

Conclusion: The TPS vitrification method has the advantages of achieving a high developmental ability and effective preservation.

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References
1.
Ling X, Zhang J, Cao S, Chen J, Peng Y, Guo X . Effect of cryotop vitrification on preimplantation developmental competence of murine morula and blastocyst stage embryos. Reprod Biomed Online. 2009; 19(5):708-13. DOI: 10.1016/j.rbmo.2009.09.006. View

2.
Gvakharia M, Adamson G . Implementation of an inexpensive method of vitrification and warming of human cleavage-stage embryos using cut standard straws. Fertil Steril. 2011; 95(8):2552-3. DOI: 10.1016/j.fertnstert.2011.04.047. View

3.
Lee S, Kim H, Park S, Yoon H, Yoon S, Lee K . Optimization of a dilution method for human expanded blastocysts vitrified using EM grids after artificial shrinkage. J Assist Reprod Genet. 2006; 23(2):87-91. PMC: 3454907. DOI: 10.1007/s10815-005-9006-0. View

4.
Kader A, Choi A, Sharma R, Falcone T, Agarwal A . Effect of varying equilibration time in a two-step vitrification method on the post-warming DNA integrity of mouse blastocysts. Fertil Steril. 2009; 93(8):2640-5. DOI: 10.1016/j.fertnstert.2009.07.991. View

5.
Nakashima A, Ino N, Kusumi M, Ohgi S, Ito M, Horikawa T . Optimization of a novel nylon mesh container for human embryo ultrarapid vitrification. Fertil Steril. 2009; 93(7):2405-10. DOI: 10.1016/j.fertnstert.2009.01.063. View