Wednesday, 1 August 2012

What are the types of stem cells(continued)

Here is a current list of the sources of stem cells based on source of collection:
1.      Embryonic stem cells - are harvested from the inner cell mass of the blastocyst seven to ten days after fertilization.
2.      Fetal stem cells - are taken from the germline tissues that will make up the gonads of aborted fetuses.
3.      Umbilical cord stem cells - Umbilical cord blood contains stem cells similar to those found in bone marrow.
4.      Placenta derived stem cells - up to ten times as many stem cells can be harvested from a placenta as from cord blood.
5.      Adult stem cells - Many adult tissues contain stem cells that can be isolated.

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