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Doctors say marrow transplant may have cured AIDS, :0

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Razz

Posted: Nov 13 2008, 08:31 PM

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http://news.yahoo.com/s/ap/20081113/ap_on_..._aids_treatment

QUOTE

BERLIN – An American man who suffered from AIDS appears to have been cured of the disease 20 months after receiving a targeted bone marrow transplant normally used to fight leukemia, his doctors said.
While researchers — and the doctors themselves — caution that the case might be no more than a fluke, others say it may inspire a greater interest in gene therapy to fight the disease that claims 2 million lives each year. The virus has infected 33 million people worldwide.
Dr. Gero Huetter said Wedneday his 42-year-old patient, an American living in Berlin who was not identified, had been infected with the AIDS virus for more than a decade. But 20 months after undergoing a transplant of genetically selected bone marrow, he no longer shows signs of carrying the virus.
"We waited every day for a bad reading," Huetter said.
It has not come. Researchers at Berlin's Charite hospital and medical school say tests on his bone marrow, blood and other organ tissues have all been clean.
However, Dr. Andrew Badley, director of the HIV and immunology research lab at the Mayo Clinic in Rochester, Minn., said those tests have probably not been extensive enough.
"A lot more scrutiny from a lot of different biological samples would be required to say it's not present," Badley said.
This isn't the first time marrow transplants have been attempted for treating AIDS or HIV infection. In 1999, an article in the journal Medical Hypotheses reviewed the results of 32 attempts reported between 1982 and 1996. In two cases, HIV was apparently eradicated, the review reported.
Huetter's patient was under treatment at Charite for both AIDS and leukemia, which developed unrelated to HIV.
As Huetter — who is a hematologist, not an HIV specialist — prepared to treat the patient's leukemia with a bone marrow transplant, he recalled that some people carry a genetic mutation that seems to make them resistant to HIV infection. If the mutation, called Delta 32, is inherited from both parents, it prevents HIV from attaching itself to cells by blocking CCR5, a receptor that acts as a kind of gateway.
"I read it in 1996, coincidentally," Huetter told reporters at the medical school. "I remembered it and thought it might work."
Roughly one in 1,000 Europeans and Americans have inherited the mutation from both parents, and Huetter set out to find one such person among donors that matched the patient's marrow type. Out of a pool of 80 suitable donors, the 61st person tested carried the proper mutation.
Before the transplant, the patient endured powerful drugs and radiation to kill off his own infected bone marrow cells and disable his immune system — a treatment fatal to between 20 and 30 percent of recipients.
He was also taken off the potent drugs used to treat his AIDS. Huetter's team feared that the drugs might interfere with the new marrow cells' survival. They risked lowering his defenses in the hopes that the new, mutated cells would reject the virus on their own.
Anthony Fauci, director of the National Institute of Allergy and Infections Diseases in the U.S., said the procedure was too costly and too dangerous to employ as a firstline cure. But he said it could inspire researchers to pursue gene therapy as a means to block or suppress HIV.
"It helps prove the concept that if somehow you can block the expression of CCR5, maybe by gene therapy, you might be able to inhibit the ability of the virus to replicate," Fauci said.
David Roth, a professor of epidemiology and international public health at the London School of Hygiene and Tropical Medicine, said gene therapy as cheap and effective as current drug treatments is in very early stages of development.
"That's a long way down the line because there may be other negative things that go with that mutation that we don't know about."
Even for the patient in Berlin, the lack of a clear understanding of exactly why his AIDS has disappeared means his future is far from certain.
"The virus is wily," Huetter said. "There could always be a resurgence."
(This version CORRECTS spelling of doctor's name to Huetter throughout.)

hmmm ... interesting

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RetroXYZ	Posted: Nov 13 2008, 08:34 PM
Standard Member Group: Members Posts: 2714 Member No.: 4325 Joined: 27-August 07 Status: (0d)	Well, that's one less metaphor we can use in this world.

FuzzMaster

Posted: Nov 13 2008, 09:00 PM

at least it's not flour

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interestingly enough, someone else brought up something where african prostitutes with AIDS who have been working non stop with it for 20 years seem to not be declining in health whereas those that retire suffer and die

I N T E R E S T I N G

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I'm gonna lock this and leave some other mod to read it since I don't want my good mood ruined.

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nightwheel	Posted: Nov 13 2008, 09:07 PM
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Elyk	Posted: Nov 13 2008, 09:15 PM
Standard Member Group: Members Posts: 6604 Member No.: 3808 Joined: 22-May 07 Status: (0d)	if he is actually cured that would be amazing next step would be figuring out how to reproduce enough of the mutation to cure the other millions of people that have it This post has been edited by Elyk on Nov 13 2008, 09:15 PM --------------------

Retriever II

Posted: Nov 13 2008, 09:21 PM

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QUOTE (FuzzMaster @ Nov 13 2008, 09:00 PM)

Unless they retire because they start to suffer and die?

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Taiki	Posted: Nov 13 2008, 09:55 PM
Standard Member Group: Members Posts: 1654 Member No.: 4074 Joined: 7-July 07 Status: (0d)	That's good that they may have found the cure. --------------------

Sword	Posted: Nov 13 2008, 09:56 PM
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Black Boo	Posted: Nov 13 2008, 10:24 PM
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FuzzMaster

Posted: Nov 13 2008, 10:54 PM

at least it's not flour

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QUOTE (Retriever II @ Nov 14 2008, 02:21 AM)

Unless they retire because they start to suffer and die?

could be, but that isn't how the idea was portrayed. seems this group of women have partial immunity for whatever reason.

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I'm gonna lock this and leave some other mod to read it since I don't want my good mood ruined.

Parakarry	Posted: Nov 13 2008, 11:01 PM
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Dr. Bob-omb	Posted: Nov 13 2008, 11:23 PM
Done. Group: Members Posts: 829 Member No.: 2433 Joined: 3-August 06 Status: (0d)	I thought they did bone marrow transplants on AIDS victims before and that it only slowed the progress of the disease... I'm not convinced that they've actually found the cure, but if they have, that's one less epidemic we'll have to worry about.

Bacteriophage

Posted: Nov 14 2008, 12:56 AM

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QUOTE (FuzzMaster @ Nov 13 2008, 07:54 PM)

could be, but that isn't how the idea was portrayed. seems this group of women have partial immunity for whatever reason.

Isn't that counter-productive, anyway?

Oh, wow, you just prolonged death by AIDS by... giving it to a hundred more people

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DJ Yoshiman	Posted: Nov 14 2008, 12:02 PM
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