搜索结果: 1-15 共查到“理学 Embryos”相关记录41条 . 查询时间(0.442 秒)
Effect of vitrification on apoptotic changes in feline embryos
cat TUNEL blastocyst Annexin-V apoptosis
2018/11/23
The aim of this study was to evaluate the influence of a vitrification-warming procedure on the viability of cat embryos and blastocysts and the incidence of apoptotic changes in blastocysts subjected...
Repeats as global DNA methylation marker in bovine preimplantation embryos
epigenetics retrotransposon bisulfite sequencing
2017/2/21
DNA methylation undergoes dynamic changes and is a crucial part of the epigenetic regulation during mammalian early development. To determine the DNA methylation levels in bovine embryos, we applied a...
Research on Dinosaur Embryos Reveals that Eggs Took 3 to 6 Months to Hatch
Dinosaur Embryos Reveals Eggs Took 3 to 6 Months Hatch
2017/1/9
New research on the teeth of fossilized dinosaur embryos indicates that the eggs of non-avian dinosaurs took a long time to hatch—between about three and six months. The study, led by scientists at Fl...
Analysis of ENPP2 in the Uterine Endometrium of Pigs Carrying Somatic Cell Nuclear Transfer Cloned Embryos
Pig Pregnancy ENPP2 LPA SCNT
2016/5/12
Somatic cell nuclear transfer (SCNT) is a useful tool for animal cloning, but the efficiency of producing viable offspring by SCNT is very low. To improve this efficiency in the production of cloned p...
Characterization of the yolk protein lipovitellin and its developmental fate in embryos and larvae of winter flounder, Pleuronectes americanus
Yolk lipid phosphoprotein vertebrates egg yolks protein egg yolk lipid phosphoprotein fertilized egg polypeptide etc
2014/12/11
Lipovitellin, the predominant yolk protein of vertebrate eggs, is a mixture of heat-stable and heat-labile molecules in mature winter flounder eggs. The heat-stable lipovitellin fraction, purified fro...
Siberian Sturgeon Oocyte Extract Induces Epigenetic Modifications of Porcine Somatic Cells and Improves Developmental Competence of SCNT Embryos
Epigenetic Modifications Somatic Cell Nuclear Transfer Siberian Sturgeon Oocyte Extract
2016/5/16
Somatic cell nuclear transfer (SCNT) has generally demonstrated that a differentiated cell can convert into a undifferentiated or pluripotent state. In the SCNT experiment, nuclear reprogramming is in...
Effects of Trichostatin A on In vitro Development of Porcine Embryos Derived from Somatic Cell Nuclear Transfer
Histone Acetylation Porcine Embryo Somatic Cell Nuclear Transfer Trichostatin A
2016/5/16
Many different approaches have been developed to improve the efficiency of animal cloning by somatic cell nuclear transfer (SCNT), one of which is to modify histone acetylation levels using histone de...
Effect of Glycosaminoglycans on In vitro Fertilizing Ability and In vitro Developmental Potential of Bovine Embryos
Capacitation Embryo Development Gene Expression
2016/5/11
The glycosaminoglycans (GAGs) present in the female reproductive tract promote sperm capacitation. When bovine sperm were exposed to 10 μg/ml of one of four GAGs (Chondroitin sulfate, CS; Dermatan sul...
Phosphorylation Status of RNA Polymerase II Carboxyl-terminal Domain in Porcine Oocytes and Early Embryos
RNA Polymerase II Porcine Oocyte Embryos α-Amanitin
2016/5/10
Fertilization of the oocyte commences embryogenesis during which maternally inherited mRNAs are degraded and the embryonic genome is activated. Transcription of embryonic mRNA is initiated by embryoni...
Considerations on the accretion of Uranus and Neptune by mutual collisions of planetary embryos in the vicinity of Jupiter and Saturn
planetary systems – planets and satellites: formation – planets and satellites: individual: Uranus, Neptune – protoplanetary disks
2011/10/8
Modeling the formation of Uranus and Neptune is a long-lasting problem in planetary science. Due to the gas-drag, collisional damping, and resonant shepherding, the planetary embryos repel the planete...
Effect of MEM Vitamins Supplementation of In vitro Maturation Medium and In vitro Culture Medium on the Development of Porcine Embryos
Porcine Embryo Development Blastocyst Vitamins
2016/5/9
This study was carried out to examine the influence of minimum essential medium (MEM) vitamins supplementation to in vitro maturation medium and in vitro culture medium on the development of porcine e...
Melatonin Attenuates Nitric Oxide Induced Oxidative Stress on Viability and Gene Expression in Bovine Oviduct Epithelial Cells, and Subsequently Increases Development of Bovine IVM/IVF Embryos
Melatonin Bovine Oviduct Epithelial Cell Bovine IVM/IVF Embryos Nitric Oxide Antioxidant
2016/5/6
The objective of the present study was to elucidate the fundamental mechanism of bovine oviduct epithelial cell (BOEC) co-culture on developmental capacity of bovine IVM/IVF embryos and to determine w...
Targeted Suppression of Connexin 43 in Ovine Preimplantation Embryos by RNA Interference Using Long Double-stranded RNA
Connexin 43 RNA Interference Ovine Embryo
2016/5/4
RNA interference (RNAi) is an acknowledged useful and effective tool to study gene function in various cells. Here, we suppressed the Connexin 43 (Cx 43) gene expression during in vitro development of...
Effects of IGF-I and EGF Supplemented to PZM3 Culture Medium on the Development of Porcine Embryos In vitro
Embryo Development Porcine Embryo Growth Factor PZM3
2016/4/29
This study investigated the effects of IGF-I and EGF on the development of blastocysts or hatched blastocysts during the in vitro culture of embryos from immature porcine oocytes. After the in vitro m...
Effects of Oviductal Fluid, Culture Media and Zona Pellucida Removal on the Development of Porcine Embryos by Nuclear Transfer
Oviductal Fluid Nuclear Transfer Culture Media Zona Pellucida Porcine
2016/4/29
The aim of this study was to compare the effects of oviductal fluid, porcine zygote medium (PZM)-3, PZM-4 and PZM-5, and modified PZM-5 culture media, and determine the effects of zona pellucida (ZP) ...