Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

ADULT Cell Transplants Restore Vision in Mice
WLEX-TV ^ | 11.08.06 | E.J. Mundell

Posted on 11/09/2006 6:51:31 PM PST by Coleus

click here to read article


Navigation: use the links below to view more comments.
first previous 1-5051-64 last
To: Scotswife

Correct. Once cells have 'differentiated' they are no longer stem cells. The cells in the title article are no longer stem cells. In fact, the authors mention that they will need a source for these cells from humans and they may possibly use either embryonic or adult stem cells for that source depending on future testing.


51 posted on 11/11/2006 5:46:14 PM PST by UpAllNight
[ Post Reply | Private Reply | To 50 | View Replies]

To: Scotswife

Additional information:



Using mice models, scientists have transplanted photoreceptor-precursor cells directly into the retina of the eyes, thus restoring visual function.
Rather than injecting undifferentiated and uncommitted stem cells into the retina in hopes they would develop into photoreceptors, researchers introduced cells at a somewhat later stage. These cells are referred to as "precursors": they are immature cells that are "programmed" to be, but have not yet become, functionally mature photoreceptors-the light-sensitive cells in the retina that are essential for sight.
An exact equivalent of this technique may be difficult to carry out in humans as photoreceptor-precursor cells will have to be sourced from fetuses. However, the authors suggest that such cells may be derived from adult of embryonic stem cells.

Nature 11/09/06


52 posted on 11/11/2006 5:57:09 PM PST by UpAllNight
[ Post Reply | Private Reply | To 50 | View Replies]

To: 2ndMostConservativeBrdMember; afraidfortherepublic; Alas; al_c; american colleen; annalex; ...


53 posted on 11/12/2006 12:59:21 PM PST by Coleus (Roe v. Wade and Endangered Species Act both passed in 1973, Murder Babies/save trees, geese, algae)
[ Post Reply | Private Reply | To 41 | View Replies]

To: UpAllNight; VOA; Vinny; Coleus; All
Title is incorrect and false.

Please read these few sentences from the second paragraph:

"We think this is a major breakthrough because it shows what can be achieved," said study lead researcher Dr. Robert MacLaren, a consultant vitreoretinal surgeon at Moorfields Eye Hospital and a clinician scientist at the University of London, in England. The finding also gets around the thorny ethical question of using embryonic stem cells. In fact, MacLaren said, "we do not want embryonic stem cells because they are too undifferentiated."

So, UpAllNight, are you saying that the vitreoretinal surgeon is wrong?

54 posted on 11/12/2006 1:25:16 PM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 3 | View Replies]

To: Coleus; Lexinom; All

By the way we started planting Coleus all over our yards a year ago, but I didn't know that's what it was named.

We've got one that's deep red almost burgundy. And I just learned you can snap a branch off and plant it and it will grow.

Nice going, Coleus.


55 posted on 11/12/2006 1:44:26 PM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 1 | View Replies]

To: cpforlife.org

--So, UpAllNight, are you saying that the vitreoretinal surgeon is wrong?--

No. You are confused. Read more from the surgeon. He says that it may soon be possible to grow the RETINAL CELLS from adult stem cells or embryonic stem cells. They are NOT adult stem cells. They are RETINAL CELLS!!!!!!!!!''




"It would be difficult to obtain equivalent human cells for transplantation, because they would have to come from fetuses in the first or second trimester of pregnancy. But Maclaren says that it may soon be possible to grow the correct retinal cells from adult stem cells or embryonic stem cells."


56 posted on 11/12/2006 2:17:51 PM PST by UpAllNight
[ Post Reply | Private Reply | To 54 | View Replies]

To: UpAllNight
My point is that Embryonic stem cells have been a complete failure. To the point that there is no private investment.

Whenever there is real promise private investors jump at the chance, but the promoters of ESCR are forcing the government to fund it through our tax dollars.

It's not only wrong but a waste of our money.
57 posted on 11/12/2006 2:26:59 PM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 56 | View Replies]

To: cpforlife.org

--It's not only wrong but a waste of our money.--

Many said that about the airplane and our military. History has proven them wrong.


58 posted on 11/12/2006 2:28:44 PM PST by UpAllNight
[ Post Reply | Private Reply | To 57 | View Replies]

To: UpAllNight
That analogy does not apply.

It's wrong because life and personhood begins at conception and we should not create and kill embryos for their parts. It's murder for profit.

Even if it becomes technically successful to use ESCR we should not.

It's a black and white, right and wrong, moral absolute thing.

I'm guessing that's where we differ?

59 posted on 11/12/2006 2:38:33 PM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 58 | View Replies]

To: cpforlife.org

--It's wrong because life and personhood begins at conception and we should not create and kill embryos for their parts--

Please insert 'some believe' into your above statement.


60 posted on 11/12/2006 4:18:54 PM PST by UpAllNight
[ Post Reply | Private Reply | To 59 | View Replies]

To: UpAllNight
It is an absolute scientific fact that life begins at conception. Every medical textbook that deals in reproduction states this. It's not a matter of belief or faith. Moreover, many things are true regardless of what the whole world thinks or believes. The world was not flat when everyone on it believed it was.

Human reason and intellect can bring an honest person to the fact that once a human life begins, a human being at any age is a human person. Not a potential person, a person with potential.

This too can be understood apart from faith.

Even an atheist can see this simple truth if they are intellectually honest.
61 posted on 11/12/2006 6:17:20 PM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 60 | View Replies]

To: cpforlife.org

--It is an absolute scientific fact that life begins at conception.--

But many disagree at what point 'conception' occurs.


62 posted on 11/12/2006 6:25:03 PM PST by UpAllNight
[ Post Reply | Private Reply | To 61 | View Replies]

To: UpAllNight
Clearly life begins at conception - when the sperm penetrates the ovum. Every IVF and ESCR group bases their jobs on it. In a lab in a dish 5 or so days after conception [when the sperm penetrates the ovum] EMBRYONIC stem cells are harvested....killing an EMBRYO, a five day old human life, a human person who HAD potential to do great things. We have ABSOLUTE Irrefutable truth, Scientific proof

AND THERE IS MORE. Can you contradict the following?

* In 1981, a US Senate committee held hearings on when human life begins. Speaking on behalf of the scientific community was a group of internationally known geneticists and biologists who had the same story to tell, namely, that human life begins at conception - and they told their story with a profound absence of opposing testimony.

Dr. Micheline M. Mathews-Roth, Harvard medical School, gave confirming testimony, supported by references from over 20 embryology and other medical textbooks that human life begins at conception.

* "The Father of Modern Genetics" Dr. Jerome Lejeune told the lawmakers: "To accept the fact that after fertilization has taken place a new human has come into being is no longer a matter of taste or opinion ... it is plain experimental evidence. Human life begins at conception "

* Dr. Hymie Gordon, Chairman, Department of Genetics at the Mayo Clinic, added: "By all the criteria of modern molecular biology, life is present from the moment of conception."

Dr. McCarthy de Mere, medical doctor and law professor, University of Tennessee, testified: "The exact moment of the beginning of personhood and of the human body is at the moment of conception."

* Dr. Landrum Shettles, sometimes called the "Father of In Vitro Fertilization" notes, "Conception confers life and makes that life one of a kind." And on the Supreme Court ruling Roe v. Wade, "To deny a truth [about when life begins] should not be made a basis for legalizing abortion."

* Professor Eugene Diamond on the Supreme Court ruling Roe v. Wade: "...either the justices were fed a backwoods biology or they were pretending ignorance about a scientific certainty."

UpAllNight, the "many" you refer to are the liars who changed the definition of pregnancy from conception/fertilaization to implantation. They did this soley to legitimize the pill as a contraceptive and so it would not be feard to be an abortifacient.

63 posted on 11/12/2006 6:47:21 PM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 62 | View Replies]

To: UpAllNight
I would like to see your response to # 63. Curious about your perspective.
64 posted on 11/13/2006 6:53:08 AM PST by cpforlife.org (A Catholic Respect Life Curriculum is available at KnightsForLife.org)
[ Post Reply | Private Reply | To 62 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-5051-64 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson