کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3935852 1253427 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Slow controlled-rate freezing of human in vitro matured oocytes: effects on maturation rate and kinetics and parthenogenetic activation
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی زنان، زایمان و بهداشت زنان
پیش نمایش صفحه اول مقاله
Slow controlled-rate freezing of human in vitro matured oocytes: effects on maturation rate and kinetics and parthenogenetic activation
چکیده انگلیسی

ObjectiveTo create a pool of frozen donated human oocytes and find the optimal stage for slow controlled-rate freezing of human in vitro matured oocytes.DesignOocytes at different developmental stages of maturation (germinal vesicle, metaphase I, or metaphase II) and oocytes that failed to fertilize after IVF or intracytoplasmic sperm injection (ICSI) were frozen using a slow controlled-rate freezing protocol. Frozen/thawed oocytes were artificially activated to verify activation potential and compared with oocytes that were not frozen.SettingUniversity hospital–based fertility center.Patient(s)Stimulated patients undergoing IVF/ICSI treatment donated oocytes left over during their infertility treatment.Intervention(s)Human oocytes were frozen at different stages of maturation. Fresh and frozen/thawed oocytes were activated by electrical pulses followed by incubation in 6-dimethylaminopurine.Main Outcome Measure(s)Survival rate, maturation rate and kinetics, and activation potential.Result(s)Human oocytes at all developmental stages have high survival rates after slow controlled-rate freezing. Frozen/thawed germinal vesicle oocytes showed decreased and delayed maturation after thawing. Activation potential was not affected.Conclusion(s)A pool of donated human oocytes could be established using slow controlled-rate freezing. Immature oocytes should be frozen after in vitro maturation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fertility and Sterility - Volume 96, Issue 3, September 2011, Pages 624–628
نویسندگان
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