But I thought only fetal stem cells ...

MrBishop said:
And this applies how exactly?
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MSM article, not just some blogger. Spike only wants "legitimate" sources for all stories or they don't really count. Yet here he is echoing your question on the legitimate Los Angeles Times source. :rolleyes:
 
Neither he nor I are pointing out source issues.

Your article talks aabout irresponsible/illegal/immoral people who are trying to make a fast buck selling 'snake oil' repackaged under the header "Stem cell".


Granted, there are people who will try and scam the unwary..that's a given. One born every minute and all that rot.

BUT

The source that I used isn't some blogger trying to fleece the nations. It's a press release by the scientists about a successful test on a human being etc.. You were effectivly trying to paint the real science with the same brush as 'snake oil salesmen'

That's why I asked about the relevance and NOT the source
 
MrBishop said:
Neither he nor I are pointing out source issues.

Your article talks aabout irresponsible/illegal/immoral people who are trying to make a fast buck selling 'snake oil' repackaged under the header "Stem cell".


Granted, there are people who will try and scam the unwary..that's a given. One born every minute and all that rot.

BUT

The source that I used isn't some blogger trying to fleece the nations. It's a press release by the scientists about a successful test on a human being etc.. You were effectivly trying to paint the real science with the same brush as 'snake oil salesmen'

That's why I asked about the relevance and NOT the source
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Oh, i diden't under stand that now i do, even though it wasent for me.
 
Professur said:
Ospeav, Welcome to the site.
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Thank you, Professur.

MrBishop said:
Every single cell in your body has it's own DNA....as for the 'no substantial differences between zygote and full-fledged adult...you have GOT to be joking!
Specialization of cell types alone is a substantial difference. DNA is a blueprint for replication and specialization...you're not made up of DNA. You're made up of carbon, water and nematodes.
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The emphasis is that the zygote has its own distinct DNA from the mother. The zygote is a complete living human being. After conception, all that takes place is growth and development. Specialization of cell types is not adding anything new. The zygote is in totality a living human being with forty-six human chromosomes, and it is sexed. By the way, I said a zygote is only accidentally different from a newborn baby, not a “full-fledged adult”. However, a zygote is only accidentally different than a full-fledged adult as well.

A zygote is substantially different than any other cell in that it alone has the potential to become a full-fledged adult.

After conception, there is no change but development. A zygote has the potential to be born, and a newborn baby has the potential to become a full-fledged adult. Regardless of what stage of development, a zygote, newborn baby, and a full-fledged adult is the same living human being from its conception.

The substance is something in and of itself, i.e., the essence. An accident is what something happens to be at a particular moment, i.e., a nonessential.

There are nine accidents which are quantity, quality, relation, action, passion, time, place, disposition, and raiment. The accidental difference between a zygote, a newborn, and a full-fledged adult is time. If you just wait a certain amount of time then a zygote will look no different than a newborn, and if you add more time, then a newborn will look no different than a full-fledged adult. The appearance is only superficial.
 
The zygote has DNA from the mother AND the father half from each to be more specific. It has a single DNA string and instructions on how to replicate and specialize....as do all other cells in your body.

As each cell type ages, it's ability to change into another type of cell or create another type of cell diminishes. It still has some ability...but restricted. You still continue to be able to heal damaged cells or replace them entirely as they die. Several types of cells are replaced daily, some hourly.

If you insist on equaling the compliment of chromosomes in a particular cell to a full and complex organism, then every single cell in your body is equal to a full human being. This is obviously not the case.

There are more than the one accident you mention in play...in fact, all of them apply.

You're stretching, to say the least.
 
SOURCE

Adult Stem Cell Research Reverses Effects of Parkinson's Disease in Human Trial

by Steven Ertelt
LifeNews.com Editor
February 16, 2009

Los Angeles, CA (LifeNews.com) -- Scientists have published a paper in a medical journal describing the results of the world's first clinical trial using autologous neural stem cells for the treatment of Parkinson's disease. A leading bioethics watchdog says the results show more money should be put behind adult stem cells.

UCLA researchers published their results in February issue of the Bentham Open Stem Cell Journal which outlines the long term results of the trial.

"We have documented the first successful adult neural stem cell transplantation to reverse the effects of Parkinson's disease and demonstrated the long term safety and therapeutic effects of this approach," says lead author Dr. Michel Levesque.

The paper describes how Levesque's team was able to isolate patient-derived neural stem cells, multiply them in vitro and ultimately differentiate them to produce mature neurons before they are reintroduced into the brain.

The team was able to inject the adult stem cells without the need for immunosuppressants. Unlike embryonic stem cells, adult stem cell injections don't cause a patient's immune system to reject the cells.

The adult stem cells were highly beneficial for the patient involved in the study.

"Of particular note are the striking results this study yielded -- for the five years following the procedure the patient's motor scales improved by over 80% for at least 36 months," Levesque wrote.

He said he hoped a larger clinical trial would replicate the findings.

Dr. David Prentice, a former biology professor at Indiana State University who is now a fellow with the Family Research Council, tells LifeNews.com that the results of the study are wonderful news for patients.

"This evidence had been presented previously, but we now have the peer-reviewed scientific evidence for the effectiveness of adult stem cells in alleviating Parkinson's symptoms," he said. "While the data show that the technique needs refinement, this patient went for several years with little to no symptoms of his disease, even with only half of the brain treated with his own adult stem cells."

Prentice says the results continue to prove that adult stem cells outpace their embryonic counterparts.

"People need to take notice that it is not embryonic stem cells that provide promise of treatments in the future, but rather it is adult stem cells that are already providing safe and effective therapies for patients now, without the problems of rejection or tumors," Prentice explains.

"We need to pour our resources, especially taxpayer dollars, into adult stem cell research to foster more and better treatments and put the patients first," he told LifeNews.com.

Levesque is a principal investigator for NeuroGeneration, a biotechnology company, and is affiliated with the UCLA School of Medicine and the Brain Research Institute.
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SOURCE

Report: Fetal Stem Cells Trigger Tumors in Sick Child's Brain, Spinal Cord

Tuesday, February 17, 2009

WASHINGTON — A family desperate to save a child from a lethal brain disease sought highly experimental injections of fetal stem cells — injections that triggered tumors in the boy's brain and spinal cord, Israeli scientists reported Tuesday.

Scientists are furiously trying to harness different types of stem cells — the building blocks for other cells in the body — to regrow damaged tissues and thus treat devastating diseases. But for all the promise, researchers have long warned that they must learn to control newly injected stem cells so they don't grow where they shouldn't, and small studies in people are only just beginning.

Tuesday's report in the journal PLoS Medicine is the first documented case of a human brain tumor — albeit a benign, slow-growing one — after fetal stem cell therapy, and hammers home the need for careful research. The journal is published by the Public Library of Science.

"Patients, please beware," said Dr. John Gearhart, a stem cell scientist at the University of Pennsylvania who wasn't involved in the Israeli boy's care but who sees similarly desperate U.S. patients head abroad to clinics that offer unproven stem cell injections.

"Cells are not drugs. They can misbehave in so many different ways, it just is going to take a good deal of time" to prove how best to pursue the potential therapy, Gearhart said.

The unidentified Israeli boy has a rare, fatal genetic disease with a tongue-twisting name — ataxia telangiectasia, or A-T. Degeneration of a certain brain region gradually robs these children of movement. Plus, a faulty immune system leads to frequent infections and cancers. Most die in their teens or early 20s.

Israeli doctors pieced together the child's history: When he was 9, the family traveled to Russia, to a Moscow clinic that provided injections of neural stem cells from fetuses — immature cells destined to grow into a main type of brain cells. The cells were injected into his brain and spinal cord twice more, at ages 10 and 12.

Back home in Israel at age 13, the boy's A-T was severe enough to require that he use a wheelchair when he also began complaining of headaches. Tests at Sheba Medical Center in Tel Aviv uncovered a growth pushing on his brain stem and a second on his spinal cord. Surgeons removed the spinal cord mass when the boy was 14, in 2006 and they say his general condition has remained stable since then.

But was the boy prone to tumors anyway or were the fetal stem cells to blame? A Tel Aviv University team extensively tested the tumor tissue and concluded it was the fetal cells. Among other evidence, some of the cells were female and had two normal copies of the gene that causes A-T — although that boy's underlying poor immune function could have allowed the growths to take hold.

Using stem cells from multiple fetuses that also were mixed with growth-spurring compounds "may have created a high-risk situation where abnormal growth of more than one cell occurred," wrote lead researcher Dr. Ninette Amariglio of Sheba Medical. She urged better research to "maximize the potential benefits of regenerative medicine while minimizing the risks."

This brain disease wasn't conducive to stem cell therapy in the first place, said stem cell specialist Dr. Marius Wernig of Stanford University, who said it's unclear exactly what was implanted.

"Stem cell transplantations have a humongous potential," Wernig said. But "if people rush out there without really knowing what they're doing ... that really backfires and can bring this whole field to a halt."
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Professur said:
Already posted in the Stem cells cures Aids thread, Jim.


Do try to keep up.
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You, of all people, know that I do not leave this forum so if that thread is in another forum I would be totally unaware of its existence.

Also, this is merely the addition of new information to an existing thread that I started several months ago on 11/20/08. Has the Stem cells cures Aids thread been around for that long?
 
jimpeel said:
You, of all people, know that I do not leave this forum so if that thread is in another forum I would be totally unaware of its existence.

Also, this is merely the addition of new information to an existing thread that I started several months ago on 11/20/08. Has the Stem cells cures Aids thread been around for that long?
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The sciences thread is a nice enough place to visit. You should give it a shot.
 
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