Skip to comments.Using Stem Cells to Cure Blindness
Posted on 08/16/2006 9:15:06 AM PDT by Ben Mugged
Scientists are taking the first major step in using stem cells to replace retinal cells lost to degenerative eye diseases such as macular degeneration and retinitis pigmentosa. According to findings published today, researchers at the University of Washington in Seattle can reliably make retinal cells from embryonic stem cells. The researchers are now implanting the cells into blind animals to see if the cells can restore vision.
"This work is the first step toward retinal reconstitution," says Stephen Rose, chief research officer at the Foundation Fighting Blindness, a nonprofit funding agency based in Owings Mills, MD. ~snip~ According to a paper published today in the Proceedings of the National Academy of Sciences, the researchers can reliably generate retinal progenitor cells, which then have the ability to turn into any cell type in the retina, such as photoreceptors, retinal ganglion cells, or other cells. Preliminary results show that when the cells are transplanted into retinas either in a dish or in live animals, the cells migrate to different layers of the retina and begin to express proteins characteristic of the resident cells, including photoreceptors. The researchers are also developing ways to efficiently turn the progenitor cells into photoreceptors in a dish.
(Excerpt) Read more at techreview.com ...
Unacceptable, even if true.
But wouldn't this be creating embryos/humans for replacement parts?
"The term, embryo, is used to describe the early stages of fetal growth, from conception to the eighth week of pregnancy."
..some slippery slope.
Let the Harvest of Souls begin! -sarc
Did they even try this with adult stem cells? Probably not. Embryonic stem cell usage is an abomination.
How is a human embryo less valuable than someone's eyesight.
To get enough embryos to address the 17 million Diabetes patients alone would require 1.7 million eggs. Superovulation would require 170 million women to donate ten eggs at a cost of $200,000 for 50-100 eggs. Which socioeconomic group will be targeted for infertility to accomplish this one diseases research? These Superovulation regimes have been known to cause Cancer and Lupus.
It's just a clump of cells like the scraping from inside your cheek, doncha know? -sarc
Hitler would be proud!
Agreed. My hope is if stem cells can be used to cure blindness, the source of those stem cells can be resourced from embryonic to a mature donor. Using stem cells harvested from the patient reduces the risk of rejection of the resulting tissues. Embryonic stem cells have never been successfully used for any clinical trials.
Doesn't mean it'll work (remember umbilical cord blood?) by any stretch of the imagination. They can just as easily take the first major steps in creating Unicorns.
There is a prophecy among Orthodox Christians that in the days of the Antichrist, all of Christ's miracles will be duplicated, except that the dead will not be raised.
I hope LIONS International does not support this.
The article contradicts the foundation's website. The website says,
"The recent discovery of adult retinal stem cells may pave the way to replace diseased retinas and restore vision."
Just so that you all know that there is room for dissention among us on such issues--
I am a pro-choice but hard core conservative. Call me libertarian in this regard if you will. Though I do not personally approve of the act of abortion, I would restrict it in some ways, but not outlaw it.
And in the same way that I would condone the use of ill-gotten goods (say confiscated drug money) to be used for some other good purpose, I tentatively condone the use of embryonic stem cells to improve the lives of the living.
So far, I have seen evidence that these cells can be used for good, even though it is likely that they were not obtained through any act of goodness.
I'm sorry, but I am against many of you here. And yes, it is true that I am not religious, and that seems to be what most of the objection to the practice of abortion is predicated on-- though I do view the Christian religion as a great source of good in the world, and I am in fact envious of those who conjure belief.
I respect your point of view, greatly, but I will not yield on my point of view. You can reply to this post if you wish and I will read them, but I will not reply back, because this is an issue that we can never find common ground on or work out through debate.
The article may be referring to a different study but more likely the reporter is misinterpreting and misstating the facts in a continuation of attempts to show results from embryonic stem cell research.
Many reporters (even for science related journals) are not knowledgeable enough about the science on which they report to describe the research completely accurately. Confusion about the exact meaning of "embryonic stem cell" is widespread.
That seems reasonable to me.
Nobody yet has found any therapeutic use for embryonic stem cells.
can reliably make retinal cells from embryonic stem cells. >>>>
killing babies isn't the way to go.
ADULT cells are moral, effective and ethical.
Stem cells ADULT promise cure for vision loss http://www.freerepublic.com/focus/f-news/1618712/posts
Bone marrow may restore cells lost in vision diseases http://www.freerepublic.com/focus/f-news/1646976/posts