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Clinical Application of a Microwell System to In Vitro Culture of Human Preimplantation Embryos

Authors :
Harue Kimura
Takao Hara
Masanori Yamashita
Mako Korekane
Kaori Tokonami
Hiroshi Iwayama
Youko Hirai
Source :
Journal of Mammalian Ova Research. 25:167-171
Publication Year :
2008
Publisher :
Japanese Society of Mammalian Ova Research, 2008.

Abstract

During in vitro culture, embryo density in culture medium affects the developmental competence of the embryo. However, in many cases, it is necessary to culture human embryos individually or in small groups. A microwell provides a single embryo with a microenvironment suitable for its development (diameter, 500 μm; depth, 300 μm; and volume, 0.04 μl). In the present study, the clinical results of a microwell system were compared with those of a microdroplet system, and the clinical validity of the microwell system was considered for routine clinical use. In the microwell system, the percentage of embryos that reached the blastocyst stage and the subsequent clinical pregnancy rate (61.7% and 41.4%, respectively) were slightly higher than those in the microdroplet system (51.8% and 34.5%, respectively). Moreover, the microwell system was suitable for routine clinical use with respect to safety, convenience and commercial availability. In conclusion, the microwell system not only slightly enhanced t...

Details

ISSN :
13475878 and 13417738
Volume :
25
Database :
OpenAIRE
Journal :
Journal of Mammalian Ova Research
Accession number :
edsair.doi...........cf18b363668310cbfacd78e3715d955c
Full Text :
https://doi.org/10.1274/0916-7625-25.3.167