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  1. Abstract. The long-term culture of human embryonic stem (ES) cells is inevitably subject to evolution, since any mutant that arises with a growth advantage will be selectively amplified. However, the evolutionary influences of population size, mutation rate, and selection pressure are frequently overlooked.

  2. 14 de jun. de 2019 · From 2013 to now, the efforts have been continuously made to explore whether Paneth cells are present in pigs or not. Two studies have reported that HE staining, PT staining, and toluidine blue ...

  3. 14 de feb. de 2023 · Since stem cells were first discovered, researchers have identified distinct stem cell populations in different organs and with various functions, converging on the unique abilities of self ...

  4. Historically, many key milestones have driven progress in the field of stem cell research [Fig. 1] More than half a century ago, in 1961, the first stem cells were described by Drs. James A. Till and Ernest A. McCulloch at the University of Toronto in Canada [].They found that stem cells derived from mouse bone marrow cells had the ability to differentiate into a variety of cell types, and ...

  5. Now, researchers at UC San Francisco have succeeded in mapping the genetic signature of a unique group of stem cells in the human brain that seem to generate most of the neurons in our massive cerebral cortex. The new findings, published Sept. 24 in the journal Cell, support the notion that these unusual stem cells may have played an important ...

  6. 9780262319034. Publication date: 2013. An examination of a decade and a half of political controversy, ethical debate, and scientific progress in stem cell research. After a decade and a half, human pluripotent stem cell research has been normalized. There may be no consensus on the status of the embryo—only a tacit agreement to disagree ...

  7. 28 de nov. de 2018 · From the field of developmental biology and embryology, current characterizations of various types of embryonic [31, 32], “induced pluripotent stem cells” (“iPS”) , somatic cell nuclear transfer (SCNT) cells , MUSE cells , organ-specific adult stem cells , as well as in situ identification of adult stem cells in various tissues, have given new insights to their potential roles in the ...