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The hematopoietic stem cells are quite rare, and each progenitor cell produced by a stem cell gives rise to a large number of red blood cells (and other blood cell types). I'm not sure if the precise number of offspring for the earliest progenitor cells is known in vivo, but recent cell culture models indicate that early progenitors can give rise to as many ...


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The difference in designation is the timing of the foundation of the cell line and the tissue that it was sourced from. Embryonic Stem Cells are harvested from the inner cell mass of a Blastocyst around day 5 post fertilization. This is the first or second generation of cells to have started to differentiate, but they still have Pluripotency, which means ...


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Chimpanzees have fingerprints. Next all you have to do is find the homologue of SMARCAD1 and let the animal testing begin! But actually I doubt it will work. This website goes into some depth and links some additional sources that show fingerprints are developed in the womb and are fully set by 6 months of gestation. It seems likely that SMARCAD1 may ...


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Spermatozoa are produced in a process called spermatogenesis. They come from germ cells, which in the human males are located in the testes. These are not affected by stem cell transplants. In females, the equivalent oocytes are already present at birth. They undergo meiosis later, but since their genetic composition is already set at birth, they, too, are ...


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We aren't there yet. There is a complex interplay between antigen recognition, presentation, and activation that would have to be worked out. You would also need to engineer the corresponding T-Cell which could recognize the antigen, become activated, which means you also need to develop a dendritic cell that can present to the T-cells, so that they could ...


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Stem cells in embryos are the basis for the development of the organism i.e once the gametes are fused you have a produced a cell that will replicate and differentiate into every cell that body is composed Any cell that differentiates into another cell can be defined as a stem cell. Yes, the testes only produced sperm cells but a localized group of stem ...


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I suppose that there is no connection between producing egg from somatic cells and stem cell research. The thing that you have mentioned: "produce a female human egg from other female body cells" was already done in 1996 (!) in sheep. Technically, there is no reason that this procedure will not work in Human as well. So in term of years: this was possible 20 ...


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I am assuming you are talking about embryological stem cells and embryological development of genitalia. The answer is no. Male stem cells have XY chromosomes. Y chromosome is the sex determining chromosome with SRY gene that determines testes development. Absence of the Y chromosome leads to female development by default. That is why XX forms women and ...


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I didn't get your question exactly. If you wanna ask how to maintain the potential of stem cells, yes, there are several compound that could keep stem cells, such as Leukemia Inhibitory Factor (LIF). As far I know, the using of pluripotent stem cell, such as ES, iPS, still has the problem of formatting teratoma in vivo studying. It means totally ...


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How about Brdu...? Normally, stem cells have active proliferation, their dividing are fast, thus they could uptake Brdu, and this is one of basic stem cell test in papers. I think it isn't too expensive, comparing with antibodies.... but you may need UV-light, and don't let children play Brdu. It is carcinogen, however, I think it only a very high dose can ...


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Adult stem cells don't always come from bone marrow. In any or most adult tissues still have stem cells exist. Stem cell doesn't only mean it can specialize into other cells. Any cell, if it has self-renew ability and never grows old, can be called stem cells. So, for men's germ-line, even it has limit differentiation ability, maybe just could turn into ...



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