The effect of the site of laser zona opening on the complete hatching of mouse blastocysts and their cell numbers.
10.5653/cerm.2016.43.3.152
- Author:
Usanee SANMEE
1
;
Waraporn PIROMLERTAMORN
;
Teraporn VUTYAVANICH
Author Information
1. Division of Reproductive Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand. tvutyava@gmail.com
- Publication Type:Original Article
- Keywords:
Blastocyst;
Hatching;
Inner cell mass;
Lasers;
Zona pellucida
- MeSH:
Animals;
Blastocyst*;
Cell Count*;
Herpes Zoster*;
Mice*;
Zona Pellucida
- From:Clinical and Experimental Reproductive Medicine
2016;43(3):152-156
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVE: We studied the effect of the site of laser zona opening on the complete hatching of mouse blastocysts and the cell numbers of the completely hatched blastocysts. METHODS: Mouse blastocysts were randomly allocated to the inner cell mass (ICM) group (zona opening performed at the site of the ICM, n=125), the trophectoderm (TE) group (zona opening performed opposite to the ICM, n=125) and the control group (no zona opening, n=125). RESULTS: The rate of complete hatching of the blastocysts was not significantly different in the ICM and the TE group (84.8% vs 80.8%, respectively; p=0.402), but was significantly lower in the control group (51.2%, p<0.001). The cell numbers in the completely hatched blastocysts were comparable in the control group, the ICM group, and the TE group (69±19.3, 74±15.7, and 71±16.8, respectively; p=0.680). CONCLUSION: These findings indicate that the site of laser zona opening did not influence the rate of complete hatching of mouse blastocysts or their cell numbers.
