Results 191 to 200 of about 79,942 (242)
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Artificial activation of porcine oocytes matured in vitro
Molecular Reproduction and Development, 1991AbstractThese studies were undertaken to understand the biological basis of artificially induced activation of meiotic metaphase II oocytes and to develop a source of oocytes as recipients for cloning by nuclear transfer. In vitro matured porcine oocytes were pulsed with various voltages of electricity and evalulated for pronuclear formation.
R S, Prather +3 more
openaire +2 more sources
Journal of Obstetrics and Gynaecology Research, 2021
Intracytoplasmic sperm injection (ICSI) is commonly used to treat severe male factor infertility in assisted reproduction. A small percentage of patients face suboptimal fertilisation rate or even fertilisation failure despite having ICSI.
K. Lam +5 more
semanticscholar +1 more source
Intracytoplasmic sperm injection (ICSI) is commonly used to treat severe male factor infertility in assisted reproduction. A small percentage of patients face suboptimal fertilisation rate or even fertilisation failure despite having ICSI.
K. Lam +5 more
semanticscholar +1 more source
2022
Against all expectations, the presence of a carefully selected normal spermatozoon does not guarantee oocyte activation/fertilization. In contrast, some ICSI cycles will have to face no or low fertilization in several consecutive cycles. Both sperm- and oocyte-derived problems may account for such a dilemma. In case of physiological activation problems,
openaire +1 more source
Against all expectations, the presence of a carefully selected normal spermatozoon does not guarantee oocyte activation/fertilization. In contrast, some ICSI cycles will have to face no or low fertilization in several consecutive cycles. Both sperm- and oocyte-derived problems may account for such a dilemma. In case of physiological activation problems,
openaire +1 more source
In vitro maturation and artificial activation of donkey oocytes
Theriogenology, 2011Three media were evaluated for their ability to support in vitro maturation of donkey (Equus asinus) oocytes and their development after parthenogenetic activation. The basal medium for Medium 1 (M1) and Medium 2 (M2) was M199 and DMEM/F12 respectively, whereas, Medium 3 (M3) consisted of equal parts (v/v) of M199 and DMEM/F12.
Gaoping, Zhao +6 more
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Health of Children Born Through Artificial Oocyte Activation
Reproductive Sciences, 2015Artificial oocyte activation (AOA) has shown to improve fertility in severe male infertility following intracytoplasmic sperm insemination (ICSI). However, the effect of AOA on the health status of children has not been studied. This pilot historical cohort study aims to evaluate physical and mental health of 79 and 89 children from 275 and 406 couples
Mohammad R, Deemeh +2 more
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Artificial oocyte activation in severe teratozoospermia undergoing intracytoplasmic sperm injection
Fertility and Sterility, 2008To evaluate efficiency of ionomycin on fertilization and cleavage rates, embryo development, and pregnancy rate after intracytoplasmic sperm injection (ICSI) in teratozoospermic patients.Laboratory study.Isfahan fertility and infertility Center, and Royan institute, Tehran, Iran.Eighty-seven couples with male factor etiology (severe teratozoospermia ...
Mohammad H, Nasr-Esfahani +3 more
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Human Reproduction
Is it possible to improve fertilization and the number of top-quality embryos by applying piezoelectric or ionomycin activation in non-obstructive azoospermia (NOA) patients?
A. Z. Isik +3 more
semanticscholar +1 more source
Is it possible to improve fertilization and the number of top-quality embryos by applying piezoelectric or ionomycin activation in non-obstructive azoospermia (NOA) patients?
A. Z. Isik +3 more
semanticscholar +1 more source
Human Reproduction
Does the regular use of Artificial Oocyte Activation (AOA) improve lab Key Performance Indicators (KPI), and in turn, enhance patient outcomes? The routine use of AOA increases Lab KPIs significantly.
V. Jagannathan, S. Srinivasan
semanticscholar +1 more source
Does the regular use of Artificial Oocyte Activation (AOA) improve lab Key Performance Indicators (KPI), and in turn, enhance patient outcomes? The routine use of AOA increases Lab KPIs significantly.
V. Jagannathan, S. Srinivasan
semanticscholar +1 more source
Zygote, 2011
SummaryThe investigation presented in this paper was conducted on the effect of oocytes activation on frozen–thawed human immature oocytes followed byin vitromaturation (IVM). A total of 386 failed-matured oocytes (germinal vesicle (GV) and metaphase I (MI) stages) was randomly divided into two groups: fresh group and vitrification group, GV group and ...
Y, Liu, Y X, Cao, Z G, Zhang, Q, Xing
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SummaryThe investigation presented in this paper was conducted on the effect of oocytes activation on frozen–thawed human immature oocytes followed byin vitromaturation (IVM). A total of 386 failed-matured oocytes (germinal vesicle (GV) and metaphase I (MI) stages) was randomly divided into two groups: fresh group and vitrification group, GV group and ...
Y, Liu, Y X, Cao, Z G, Zhang, Q, Xing
openaire +2 more sources
, 2021
Research question: Is the pregnancy rate affected by artificial oocyte activation (AOA) with A23187 after intracytoplasmic sperm injection (ICSI) in infertile patients?Design: Our retrospective study included 308 patients who transferred blastocyst ...
Xuehua Yan +6 more
semanticscholar +1 more source
Research question: Is the pregnancy rate affected by artificial oocyte activation (AOA) with A23187 after intracytoplasmic sperm injection (ICSI) in infertile patients?Design: Our retrospective study included 308 patients who transferred blastocyst ...
Xuehua Yan +6 more
semanticscholar +1 more source