Showing posts with label ESC. Show all posts
Showing posts with label ESC. Show all posts

Friday, December 28, 2007

President Bush and the Embryonic Stem Cell Decision

President Bush and the Stem Cell Decision

Now that the debate seems to be over, what can we say about Bush’s policy and the long months it took for him to devise it? I think it is fair to look upon it as a model of how to deal with the complicated scientific and ethical dilemmas that will continue to confront political leaders in the age of biotechnology. Bush refused to accept the notion that we must choose between medical research and the principle of the dignity of life at every stage. He sought both to advance biomedical science and at the same time to respect the sanctity of human life. In the end he came to a moderate, balanced decision that drew a prudent and principled line. The decision was both informed and reasoned, based on lengthy study and consultation with people of widely divergent viewpoints. It was consciously not guided by public-opinion polls.


Commentary Link

This well-written article gives the background on the embryonic stem cell decision. Of course, my problem with the decision is that it has not aged that well. Problems with contamination of the original approved lines restricted research and new developments could not be accomodated.

The President looked better after recent announcements allowing creation of embryonic stem cells that did not require destroying embryos. Everyone including me is rejoycing. But, these cells are not the cells I developed from. These cells do not show the beginnings of disease that will kill me later. Only embryonic stem cells can provide the material that gives answers to how humans really develop. Research in that area needs to continue.

Lets not be too quick in saying that cells developed for modified skin cells are the SAME as ESC. ESC cells that we know very little about no less. We may have to back up on that too.

Friday, February 02, 2007

I have been taking part in a very interesting discussion in comments on the Tennessean. It deals with when the beginning of human live occures. One of the key issues is IVF, invetro fertilization. I have been surprised to learn that about 400,000 embryos are frozen in the United States currently and that one percent of babies born in Isreal are from IVF. Those arguing against ESC skip the problem of these embryos. They put it off by offering embryo adoption and by frozen storage. Neither is a solution.

Sunday, January 21, 2007

Comment in the Tennessean

I'm continuing to take my fight to the opposition. I have been making my case in the Tennessean for the last several days. Good opposition causes good thinking. You can find the link at

Friday, January 19, 2007

Scientists use amniotic fluid as a source of stem cells

Scientists use amniotic fluid as a source of stem cells: "In addition to being easily obtained, amniotic stem cells can be grown in large quantities, because they typically double every 36 hours. They do not require guidance from other cells for their development, and they do not produce tumors, which have proven to be a problem with some other types of stem cells. "

Since these cells can reproduce in large quantities, they would be very useful as a replacement for adult stem cells in some situations. Adult stem cells are not easy to obtain in quantitiy.

I wonder what function these stem cells are filling in the amniotic fluid. No one has mentionned that.

Dr. Atala says these cells produce Many cell types. Many is not all. They do not appear to be embryonic stem cells or to have equal functions.