Sources of Stem Cells:

There are several sources to obtain stem cell for clinical application including embryonic and adult stem cells.  Many scientists consider embryonic stem cells an ideal choice for treating disease, since they have superior differentiation capability than adult stem cells. However, due to general public controversy surround stem cells, and other limitations, scientists are exploring alternative sources.

 

Stem cells can be obtained from several sources:

 

o   Spare embryos: stem cells can come from leftover embryos stored at fertility clinics.

o   Bloodstream (peripheral blood): It is used more often today

o   Bone marrow that normally produces blood and bone marrow cells.

o   Umbilical cords: this after-childbirth tissue holds potential for research

o   Adult tissue or organs: stem cells are obtained from the tissue or organs of living adults during surgery.

o   In vitro fertilized embryo: embryo produced in vitro, artificially in the lab in order to extract their stem cells.

o   Cloned embryos: embryos are cloned in labs using somatic nuclear transfer method in order to harvest their stem cells.

o   Aborted fetuses: stem cells are taken from aborted fetuses in early development.

 

Embryonic Stem Cell:


Neural Stem Cell

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