Embryonic Stem Cells
Embryonic cells
are a type stem cell that is extracted from a human embryo, which is about a
week after fertilization. At this point of growth, the embryo only has around
100 cells in its body with most of them being stem cells because the cells
haven’t differentiated into different cells yet. Since the embryo is so small
and doesn’t have many cells, the embryo will die when the cells are extracted.
The scientists know that the embryo will die, since they are doing this procedure
in a lab with an artificial womb. This type of stem cell research is one of the
most controversial and this is why people don’t agree with it. This type of
stem cell goes hand in hand with the topic of abortion. Embryonic stem cell
research is killing an embryo before it even has the chance to fully grow and
become a fetus similar to abortion. But then you have the discussion of when is
the fetus considered living? When does it start forming organs that make it
suitable for life?
About five weeks
into the pregnancy, the embryo forms a brain, spinal cord, heart, and other
organs form but it is no where near being able to survive on its own. The
organs just form, they are not even close to being movement and function. Many
pro-lifers view this as inhumane or murder because they believe life begins at
conception, but most the time when an embryo is at this stage or growth only
about one third of them survive naturally in a woman’s womb. A common
misconception from people is that embryonic stem cells are taken from embryos
that are inside of a woman. Woman donate their eggs to since and scientists
fertilize the egg with sperm that has been donated and they create a zygote
which then grows into an embryo over the course of a couple of days. Since scientists
are creating life outside of a woman’s womb and just taking the stem cells from
the embryo and killing it people disapprove. So they feel that funding should
be given to other types of stem cell research, but the great thing about
embryonic stem cells is that they are “thought by most scientists and researchers to hold potential
cures for spinal cord injuries, multiple sclerosis, diabetes, Parkinson's
disease, cancer, Alzheimer's disease, heart disease, hundreds of rare immune
system and genetic disorders.” (http://usliberals.about.com/od/stemcellresearch/i/StemCell1_2.htm)
Other forms of stem cells can’t be used as widely as embryonic stem cells can. For
example, cord blood stem cells can only be used for certain types of cancer,
blood disorders, immune disorders, and metabolic disorders.
Embryonic stem
cell research has been around for a long time, dating back to the early 60s. It
wasn’t until 1998 that scientists actually studied a human embryonic stem cell, so stem cell
research relating to a human embryo is pretty recent and can be ground breaking
over the next couple of years with proper funding and support from the public.
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