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Doctrine1st said:Stem Cell research is something I am rather ignorant about, but from what I have read so far, during the in vito fertilization process many embryos are created. Once the client becomes pregnant in 90% of the cases, the embryos are destoyed. As I said I don't know too much about it, but if this is the case, is there controversy with using these embryos? Could someone explain the opposition?
Buzz Dixon said:A stem cell is a cell which has not yet specialized. As a fertilized egg begins dividing, it forms stem cells. Later these cells become the various tissues of the body.
Adult stem cells are usually blood cells that have been boached back into a stem cell state so they can be manipulated into other forms of cells. This therapy is common and in use today.
Placental stems cells come from the placenta of new born babies. This therapy is common and in use today.
Embryonic stem cells come from embryos fetilized in vitro. So far none of the existing embryonic stem cell lines have been used in therapy.
Many people do not think it is either moral or ethical to deliberately create human embryos if an effort isn't going to be made to bring all the embryos to term. They especially think it's a bad idea to deliberately create such embryos with the sole purpose of conducting medical experiments.
Since Adult and placental stem cell therapies and research already exist, it's fair to ask why embryonic stem cell research is needed at all.
Adult stem cell lines can be regressed, but poorly. Also, they have shortened telomeres.Buzz Dixon said:A stem cell is a cell which has not yet specialized. As a fertilized egg begins dividing, it forms stem cells. Later these cells become the various tissues of the body.
Adult stem cells are usually blood cells that have been boached back into a stem cell state so they can be manipulated into other forms of cells. This therapy is common and in use today.
Placental stems cells come from the placenta of new born babies. This therapy is common and in use today.
Embryonic stem cells come from embryos fetilized in vitro. So far none of the existing embryonic stem cell lines have been used in therapy.
Many people do not think it is either moral or ethical to deliberately create human embryos if an effort isn't going to be made to bring all the embryos to term. They especially think it's a bad idea to deliberately create such embryos with the sole purpose of conducting medical experiments.
Since Adult and placental stem cell therapies and research already exist, it's fair to ask why embryonic stem cell research is needed at all.
Wisdom Seeker said:...
If we're going to take an ethical stance against embryo's being created, then shouldn't we be against any baby making that isn't done the old fashioned way? And if we're going to be extremist about that, aren't their other issues regarding procreation that are also a waste? Maybe I'm ignorant about this. But from reading it, I don't see what all the fuss is about.
newlamb said:What we should insist on is that huge numbers of eggs NOT be harvested and large numbers of embryos created. Instead, procedures should harvest only the number of eggs which will be fertilized and implanted. No extras, no ethical problems!
Until this problem can be afaectivly solved. No embryos should be made. As soon as the egg and sperm come together and form a cell, It becomes a human life. Think of the ameba it is a singel cell living organisim, it is alive, so is the embryo. I definitly don't agree with stem cell reaserch and I don't agree with letting all those babys in the form of an embryo die. For whatever reason.trunks2k said:Extra embryos are made because they don't know how many are going to be needed until a good implantation takes place. It's much less invasive to make a larger group of embryos in one shot rather than make a small group, find out that none of them take hold, then have to do another group, etc, etc. Plus some people opt to donate the extra embryos to couples who do not have the option of making their own embryo.
This is odd thinking. I mean, really, do you think doctors harvest additional embryos simply to create stem-cell dilemmas? Fact is, conception via any means - natural or artificial - is hugely inefficient. At least half of all fertilization events are inviable and result in spontaneous abortions. Embryos are implanted en masse because it might take hundreds of procedures to do them one-at-a-time.newlamb said:What we should insist on is that huge numbers of eggs NOT be harvested and large numbers of embryos created. Instead, procedures should harvest only the number of eggs which will be fertilized and implanted. No extras, no ethical problems!
jesusfreak3786 said:Until this problem can be afaectivly solved. No embryos should be made. As soon as the egg and sperm come together and form a cell, It becomes a human life. Think of the ameba it is a singel cell living organisim, it is alive, so is the embryo. I definitly don't agree with stem cell reaserch and I don't agree with letting all those babys in the form of an embryo die. For whatever reason.
Think of the babies end it all!!! Adopt.Archivist said:Yes, but right noe=w the embryos exist and they are simply being disposed of, so why not use the stem cells for research that could perhaps save lives.
jesusfreak3786 said:Think of the babies end it all!!! Adopt.
No I'm saying untill they can succsesfully bring to term or at least gestate all the embryos they souldn't do it. There are a lot of babies up for adoption and it cost about the same.Archivist said:Do you think that all the embryos that now exist are going to be adopted?
More like the latter. To be extremely non-technical, medical scientists put a bunch of embryos in a test tube, dump a bunch of sperm in, then wait to see how many fertilization events occur. If they get a high number, often multiple embryos will be implanted - because there's no way to determine individual embryonic viability - and the rest will be frozen. For this reason, we sometimes see multiple births from IVF when multiple embryos are viable.Nienor said:Please Clarify-
They create the embryos, and then what happens? do they pick one and let the others die, then use the dead ones for research; Or do the embryos they use die in the process of creating them?
This is just not a realistic goal. Spontaneous abortion is nature's way of dealing with deleterious mutations. It works the same with IVF.jesusfreak3786 said:No I'm saying untill they can succsesfully bring to term or at least gestate all the embryos they souldn't do it.
Actually, there are a lot of children up for adoption. Babies are relatively rare, especially the white, healthy ones that everyone seems to want so badly.There are a lot of babies up for adoption and it cost about the same.
do the ones they freeze usually die? and are those the ones that are used?More like the latter. To be extremely non-technical, medical scientists put a bunch of embryos in a test tube, dump a bunch of sperm in, then wait to see how many fertilization events occur. If they get a high number, often multiple embryos will be implanted - because there's no way to determine individual embryonic viability - and the rest will be frozen. For this reason, we sometimes see multiple births from IVF when multiple embryos are viable.
Randall McNally said:More like the latter. To be extremely non-technical, medical scientists put a bunch of embryos in a test tube, dump a bunch of sperm in, then wait to see how many fertilization events occur. If they get a high number, often multiple embryos will be implanted - because there's no way to determine individual embryonic viability - and the rest will be frozen. For this reason, we sometimes see multiple births from IVF when multiple embryos are viable.
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