نتایج جستجو برای: scnt embryo

تعداد نتایج: 67711  

Journal: :Composites Part A-applied Science and Manufacturing 2021

In-plane permeability of small area (100 × 50 mm) alumina fiber woven fabrics grafted with aligned carbon nanotubes (CNT) was quantified by placing them in series a glass mat known during flow experiment. The methodology first validated on reference textile. Permeability values matched those obtained direct method within margin ±15%. Permeabilities radial-aligned (short CNT, SCNT) and so-called...

Journal: :Theriogenology 2013
Jun-Xue Jin Suo Li Qing-Shan Gao Yu Hong Long Jin Hai-Ying Zhu Chang-Guo Yan Jin-Dan Kang Xi-Jun Yin

The low success rate of animal cloning by somatic cell nuclear transfer (SCNT) associates with epigenetic aberrancy, including the abnormal acetylation of histones. Altering the epigenetic status by histone deacetylase inhibitors (HDACi) enhances the developmental potential of SCNT embryos. In the current study, we examined the effects of LBH589 (panobinostat), a novel broad-spectrum HDACi, on ...

2012
Telma C. Esteves Olympia E. Psathaki Martin J. Pfeiffer Sebastian T. Balbach Dagmar Zeuschner Hiroshi Shitara Hiromichi Yonekawa Marcin Siatkowski Georg Fuellen Michele Boiani

While reprogramming a foreign nucleus after somatic cell nuclear transfer (SCNT), the enucleated oocyte (ooplasm) must signal that biomass and cellular requirements changed compared to the nucleus donor cell. Using cells expressing nuclear-encoded but mitochondria-targeted EGFP, a strategy was developed to directly distinguish maternal and embryonic products, testing ooplasm demands on transcri...

Journal: :The International journal of developmental biology 2015
Fei Han Xia Li Dandan Song Shaoshuai Jiang Qun Xu Yunhai Zhang

Somatic cell nuclear transplantation (SCNT) and induced pluripotent stem cell (iPSC) technologies can be employed to change cell fate by reprogramming. The discoveries of SCNT and iPSCs were awarded the Nobel Prize for Physiology and Medicine in 2012, which reaffirmed the importance of cell fate plasticity. However, the low cloning efficiency of SCNT and differences between iPSCs and embryonic ...

Asgari V, Forouzanfar M Hajian M, Hosseini SM Moulavi F Nasr Esfahani MH,

Background: The potential applications of a simplified method of somatic cell nuclear transfer (SCNT) that is improved in both efficiency and throughput is considerable. Technically, a major step of SCNT is to produce large pools of enucleated oocytes (cytoplasts) efficiently, a process that requires considerable micromanipulation skill and expensive equipment. Here, we have devel oped an efficient...

Journal: :Cellular reprogramming 2010
Ji-Hey Lim Jorge A Piedrahita Lauren Jackson Troy Ghashghaei Natasha J Olby

Research into transplantation strategies to treat spinal cord injury (SCI) is frequently performed in rodents, but translation of results to clinical patients can be poor and a large mammalian model of severe SCI is needed. The pig has been considered an optimal model species in which to perform preclinical testing, and the Yucatan minipig can be cloned successfully utilizing somatic cell nucle...

Journal: :Reproduction, fertility, and development 2016
Gao-Bo Huang Li Quan Yong-Lian Zeng Jian Yang Ke-Huan Lu Sheng-Sheng Lu

During reprogramming, there is exchange of histone H1c and the oocyte-specific linker histone, and H1c may play a critically important role in the reprogramming process of somatic cell nuclear transfer (SCNT). The aim of the present study was to investigate the role of the H1c gene in SCNT reprogramming in Chinese swamp buffalo (Bubalus bubalis) using RNA interference (RNAi). Chinese swamp buff...

2015
Byungkuk Min Sunwha Cho Jung Sun Park Yun-Gyeong Lee Namshin Kim Yong-Kook Kang

Reprogramming incompletely occurs in most somatic cell nuclear transfer (SCNT) embryos, which results in misregulation of developmentally important genes and subsequent embryonic malfunction and lethality. Here we examined transcriptome profiles in single bovine blastocysts derived by in vitro fertilization (IVF) and SCNT. Different types of donor cells, cumulus cell and ear-skin fibroblast, we...

2016
Jeoung Eun Lee Young Gie Chung Jin Hee Eum Yumie Lee Dong Ryul Lee

Although three different research groups have reported successful derivations of human somatic cell nuclear transfer-derived embryonic stem cell (SCNT-ESC) lines using fetal, neonatal and adult fibroblasts, the extremely poor development of cloned embryos has hindered its potential applications in regenerative medicine. Recently, however, our group discovered that the severe methylation of lysi...

Journal: :The European Journal of Neuroscience 2007
Hiroki Yamanaka Koichi Obata Kimiko Kobayashi Yi Dai Tetsuo Fukuoka Koichi Noguchi

The cell adhesion molecule L1 (L1-CAM) plays important functional roles in the developing and adult nervous systems. Here we show that peripheral nerve injury induced dynamic post-transcriptional alteration of L1-CAM in the rat dorsal root ganglia (DRGs) and spinal cord. Sciatic nerve transection (SCNT) changed the expression of L1-CAM protein but not L1-CAM mRNA. In DRGs, SCNT induced accumula...

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