Published in Blood Weekly, February 16th, 2006
"Human embryonic stem (ES) cells have been established either from fresh or frozen embryos. The recovery rates of undifferentiated human ES cells after cryopreservation with conventional slow-rate freezing and rapid-thawing methods are relatively low," scientists in People's Republic of China report.
According to C.F. Wu and colleagues at Shanghai Medical University 2, "The purpose of this study was to improve cryopreservation efficiency by modifying conventional methods with addition of trehalose.
"Immature oocytes donated from patients undergoing IVF...
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