Stem Cell Research Today
Stem cells are undifferentiated biological
cells that can differentiate into specialized cells and
can divide
(through mitosis)
to produce more stem cells. They are found in multicellular organisms. In
mammals, there
are two broad types of stem cells: embryonic stem cells, which are isolated from
the inner cell mass of blastocysts,
and adult stem cells, which are found in various
tissues. In adult
organisms, stem cells and progenitor cells act as a repair system for the
body, replenishing adult tissues. In a developing embryo, stem cells can
differentiate into all the specialized cells—ectoderm, endoderm and mesoderm
(see induced pluripotent stem cells)—but
also maintain the normal turnover of regenerative organs, such as blood, skin,
or intestinal tissues.
There are three accessible sources
of autologous
adult stem cells in humans:
- Bone marrow, which requires extraction by harvesting, that is, drilling into bone (typically the femur or iliac crest),
- Adipose tissue (lipid cells), which requires extraction by liposuction, and
- Blood, which requires extraction through apheresis, wherein blood is drawn from the donor (similar to a blood donation), and passed through a machine that extracts the stem cells and returns other portions of the blood to the donor." –
Wikepedia definition
- http://en.wikipedia.org/wiki/Stem_cell
Stem cell
research has great possibilities in helping cure many ailments. Here are a few
of the breakthroughs in stem cell research. Great advances have been made
regardless of the ban by the previous administration. Research still continued
and wasn't released until the next presidential administration. It is amazing to find the multitude of breakthroughs as a result of stem cell research.
Researchers at the Welcome Trust
Sanger Institute and the University of Cambridge have managed to harvest stem
cells from a patient with a genetic mutation, fix that mutation, and
then use those repaired cells to successfully treat the disease that the
mutation was causing in the first place. - Dvice.com article.
Researcher at Japan's RIKEN Center
for Developmental Biology took mouse stem cells and re-programmed them into a
working pituitary gland
This would become a commercial
industry to help the millions of people who need organ transplants every
year.
If only this could be
commercialized, it could lead to the end of dentures for Americans.
This should be sold to the Red Cross
for generation of blood for blood banks.
This would greatly help the lack of
compatible hearts in the United States; a new heart could be grown for the
recipient. The list goes on. If you are interested in reading more about stem
cell research go to www.stemcellnetwork.ca
and other links in the references.
References:
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