نتایج جستجو برای: human embryonic stem cells
تعداد نتایج: 2753283 فیلتر نتایج به سال:
The discovery of an alternative method of producing induced human stem cells will affect the ethical evaluation of human embryonic stem cell research On 20 November 2007 two groups of researchers announced that they had independently managed to produce induced Pluripotent Cells (iPC) from human adult (ie not embryonic or foetal) somatic cells. 2 The two groups used slightly different procedures...
It has been proposed that human embryonic stem cells could be used to provide an inexhaustible supply of differentiated cell types for the study of disease processes. Although methods for differentiating embryonic stem cells into specific cell types have become increasingly sophisticated, the utility of the resulting cells for modeling disease has not been determined. We have asked whether spec...
Differences between individual DNA sequences provide the basis for human genetic variability. Forms of genetic variation include single nucleotide polymorphisms (SNPs), insertions/duplications, deletions, and inversions/translocations. The genome of human embryonic stem cells (hESCs) has been mainly characterized by karyotyping and comparative genomic hybridization (CGH), techniques whose relat...
Background: The growth factors that drive the division and differentiation of stem cells during early human embryogenesis are unknown. The secretion of endorphins, progesterone (P(4)), human chorionic gonadotropin, 17beta-estradiol, and gonadotropin-releasing hormone by trophoblasts that lie adjacent to the embryoblast in the blastocyst suggests that these pregnancy-associated factors may direc...
introduction: brain injury is an important cause of morbidity and mortality worldwide and so far, there has been no absolute treatment for the damaged brain tissue. using human stem cells with self-assembling scaffolds can be a promising method for treatment of traumatic brain injury. materials and methods: human meningioma stem cells were isolated, cultured and then expanded into in vitro cond...
A Need for meat is rising day by and the production of poultry, cows, pigs fisheries reduced as there no good commercial production. Wider livestock becoming unavailable on a global scale in requisites welfare animals, ecological sustenance human health conditions. Choices cultured are being explored using innovative techniques like stem cells, Embryonic Stem Cells, Induced pluri potent cells [...
Abstract Pluripotent stem cells (PSC) are important for several areas of bio-medicine, including cell replacement therapy and embryonic development. Non-human primates (NHP) paramount importance as human models translating therapies into the clinic. However, this requires NHP-PSC that meet specific quality criteria. We have generated appropriate NHP-PSC. Our work contributes to making NHP even ...
In the fifth year since human cloning to generate stem cells was legalised in the UK, what progress has been made towards taking stem-cell therapy from laboratory to clinical practice? In 2000, articulating robust UK Government support, then Health Minister Yvette Cooper proclaimed that stem cells from cloned human embryos “could prove the Holy Grail in finding treatments for cancer, Parkinson’...
Already in 2006 the group of Irina Klimanskaya / Robert Lanza had published a controversially discussed paper on the generation of human embryonic stem cells (hESCs) from cells that had been obtained by blastomere biopsy. Title and abstract of that paper suggested that removal of one or only few cells from an embryo could be sufficient, and that the original embryo might survive undamaged, so t...
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