Skin Stem Cells Used to Mend Spines of Rats 128
The Toronto Star reports researchers have used adult skin stem cells to heal spinal cord injuries in rats. "Injured rats injected with skin-derived stem cells regained mobility and had better walking co-ordination, according to the study published yesterday in the Journal of Neuroscience. The skin-derived stem cells, injected directly into the injured rats' spinal cords, were able to survive in their new location and set off a flurry of activity, helping to heal the cavity in the cord."
very nice (Score:1, Funny)
Re:very nice (Score:5, Funny)
Re:very nice (Score:5, Funny)
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Say you've known what your sexuality is for at least 10-15 years and have no problem with it, would you take a 'cure' to alter it if someone invented one? It's similar to that question posed in X-3 (god awful movie though) about the mutants and their 'cure' for the abnormal, would you 'cure' your abnormality and in turn remove a part who you are?
No (Score:2, Funny)
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Senator Clinton was heard mumbling something about interns
Re:very nice (Score:4, Insightful)
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In addition to that, this isn't a typical stem cell therapy, where you replace damaged tissue with stem cell grown tissue of the same type. This is something altogether different- if you had a bacteria you had engineered to produce GDNF, you'd end up with EXACTLY the sam
Germany, Austria, Ireland (Score:1, Funny)
In Soviet Russia, on the other hand...
Re:very nice (Score:5, Informative)
One little difference from what you said. Embryonic stem cell research is not forbidden in the United States. The federal government just won't fund it except from a couple of pre-existing stem cell lines (which I guess are corrupted and worthless now anyway). Lot's of embryonic stem cell research happens via private funds and is often even funded through states like California.
Everything else you said is spot on.
Re:very nice (Score:4, Informative)
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I would too. I'd especially like to see it broken down by denomination or sect. I strongly suspect that the more zealous the sect, the less tendency there is to know the difference. This goes for strong atheists and Unitarian Universalists who'd like to see both ASC and ESC legalized, just as much as it goes for the fundamentalist Christian pro-life m
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dude, what happened to my meds?
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And I predict that due to your comment, we will now be seeing spam for penis enlargement stem cell pills by Monday..
I say. (Score:4, Funny)
Re:I say. (Score:5, Insightful)
Except for the part where they first give you cancer, diabetes, and paralysis.
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And that's still only beneficial if you're in the test group for the particular drug or therapy that actually works!
And even if you are that lucky, there's a more than probable chance that your reward for surviving all of that and getting 'cured', will be to be euthanized shortly thereafter.
Odds...they are not good for a lab rat.
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Except, according to california law EVERYTHING causes cancer. So for all we know these rats were fed chocolate coated alaskan cod till their backs gave out.
... and break your spine... (Score:2)
Whew (Score:2, Funny)
If my rat ever breaks his back I'll know just what to do.
Lab Rats (Score:3, Funny)
Re:Lab Rats (Score:5, Interesting)
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The program should be voluntary but I see no reason it should have to be gratis. Pay top yen and conduct the experiments on female children in China. It's a win/win.
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Enrich third world parents, and advance first world medicine at the same time.
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The payments go to the parents (if subject is under age) or whomever the subject chooses as next of kin (if of age). That is what would motivate desperate people to participate.
'Solution: instead of buying the services of the child, simply buy the child itself outright from its parents.'
Shame on you, that would be slavery and unethical. The child would be used without consent in a case like that.
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Maybe it is unethical of the parents to consent but that is between them, their code of imaginary rules called morality, their mythical deity of choice, and their child. There is nothing unethical about experimenting with informed and consenting volunteers however and when it comes to children consent comes from parents.
As far as the one child per family policy and killing off girls i
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I know relativism is cool and all that, but let me give you a swift kick in the nuts (a Slashdot cultural assumption) and I'm rather certain that you're going to tell me that it is absolutely wrong ;)
The idea of population planning isn't that objectionable per se, but leaving the details and implementation to the people themselves isn't such a great ide
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You might be right. But as I already said...
'As far as the one child per family policy and killing off girls
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Wait, "ethical"? I thought we were talking about the free market, and the glories of unregulated capitalism...
The genius of high-minded science married to the moral apathy of insatiable greed: with a winning combination like that, who needs ethics?
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Needless to say, it is a very complicated issue, and success in rats is a very good thing, but there are many more tests that need to be performed before it is ready for even the most basic human testing.
There have been many treatments and cures for mice that failed for a variety of reason before human testing.
Re:Lab Rats (Score:4, Interesting)
Re:Lab Rats (Score:5, Interesting)
They already do that. I had a friend who was diagnosed with a very nasty cancer that killed him in four months. Unfortunately his 'doctors' convinced him to allow them to test a drug on him. It helped him not a jot, a fact that they alluded to being likely (being of medical background I could read between the lines of what he was told), but never quite managed to explain clearly for him, and made him puke constantly. I did try to convince him to not take part, but they'd got him on the 'for the good of other people' thing. His was not the first case I encountered where this had occured, just the closest to me.
Terminally ill people make bad subjects. For one thing they're already dying, so your looking at a system in a failure condition, not much useful general data to be had there, and we are, after all, dealing with a person who may want to be doing other stuff in their last bit of time alive. They are also prone to being fragile of mind (not always, but it can happen in those who suddenly find they are dying young), so susceptible to being talked into things not in their best interests.
I'm against it, you may have gathered. Personally I think we should be growing brainless human bodies (as in never had a brain, never alive without external help), and test on them instead. Heck, we might even be able to cuts bits off them for people to use.
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I am not prepared to intentionally create mutilated human bodies. Lets wait until we can grow individual organs. A kidney floating in nutrient solution doesn't seem too human.
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So you're hung up on the container rather than what truly makes us human?
I wouldn't call a body grown without a brain a mutilated human. I'd consider it a body "sans human"
Heck, nothing is cut up so you're technically wrong on phrasing, just using a loaded word.
And, yes, I'm aware of the argument that that the body is critical to being human due to unique input of senses and hormones. I'm also of opini
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some morons will have sex with those bodies and create half-brainless children
The first thing you learn in genetics is that it is not blended. A brainless person mated with a person with a brain will not create a person with half a brain.
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Those could be included and still avoid having a sentient person.
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Lymbic system allows you to get a hardon. Who is to say that it's not enjoyable on some primitive, animal level?
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So what your saying is that you think we should test the general population, elected officials? Or are you saying we should grow zombies? Think of the possibility for the theatre? Undead marionettes! Look out Shakespeare!
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If we could grow brainless human bodies, why not just transplant our brains onto them so we dont have to worry about disease anymore.
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We experiment on people so we can cure rats.
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This is not as far out as you might imagine. There is a tradition in the U.S. in which, during wartime when the draft existed (during WWII, Korean War, etc.) conscientious objectors volunteered to provide benefit to their country by being subjects in medical tests. These people deserve a great deal of respect for being willing to take risks as big as their brothers faced in battle while still being consistent with their values. Also, these people were of far greater value than subjects who might be terminal
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Or 10 years + FDA approval behind?
Also, adult stem cells in salamanders can be used to regrow legs.
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Re:Lab Rats (Score:4, Insightful)
Yes, but you would be a tiny part of a semi-formal, well-established, institutionalized breeding program. Your relatives would be your parents, siblings and cousins all at the same time due to inbreeding. You and your fellow rats would have been carefully designed genetically to custom physiological specifications so as to make experimenting easy and meaningful. Like for example, you would have no immune system so that foreign cells can be incubated inside your body without suffering tissue rejection issues. Or you would be genetically predisposed to some congenital disease so that drugs can be tested on you for effectiveness.
I say all this in jest, of course. It is important to realize that success with rats are accomplished only with the benefit of an incredible ammount of control excercised by researchers that translate very poorly to the realistic world human beings are living in. Beyond these initial animal trials, there are still an incredible number of hoops that medical researchers have to jump through before they can come up with something that is injectable into you.
Rats and mice (Score:2)
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Weekend Update (Score:1, Offtopic)
OK I'm confused. (Score:5, Interesting)
So anyway, I was under the impression that rats already had the ability to repair their spinal cord even without the use of stem cells. Perhaps I've mis-remembered what the doctor/researcher said, does anyone know the details?
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But I guess the key-point in the summary was _helped_ to recover.
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Apparently if the severance is incomplete they can regrow nerve fibres.
I thought humans could too though. I thought it was the scarring on the ends of the nerve fibres which prevented regrowth. My father severed the nerve in a finger, after several years it regrew and he could feel things again.
Scarring (Score:3, Insightful)
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Nerve fibers in the peripheral nervous system (PNS - formed by cranial and spinal nerves) have the potential for regrowing. How successful they are at regrowing depends on the type of injury. Apparently the myelin sheaths formed by Schwann cells in the PNS (which, among other things, speed up the nerve signal conduction velocity and decrease metabolic demands on the cell for signalling) can also help the nerve regenerate axons in the case of trauma. If the trauma is a crushing one, then the nerve cell b
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So, a lot of this spinal work
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Agreed about the mutilation bit. She opens up the spinal column, exposes the cord, and then uses a machine like a guillotine ( but with a blunt impactor rather than a blade ) to "bruise" the cord directly. Then she puts the poor rats back together and lets them heal.
She also does it at very particular locations for the purpose of watching the rat's hind legs regain control.
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Canadians? (Score:2, Funny)
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And I could tell you what it is, but then I'd have to kill you.
We are going to rule the world after all, ehh.
Great Alternative to Controversy (Score:1)
Soon there will be no need to use embryos for stem cell research.
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Somehow, we've so completely bought into the notion that embryonic stem cells are the only ones with promise, that when -- time and again -- we see that the breakthroughs are occurring with adult stem cells, we
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So yes, embryonic stem cells _should_ be opened up to federal funding programs, so that advances can be made w/ either type of stem cell.
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They can. Just not with federal money.
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I've never heard anyone argue that research on adult stem cells should be halted. Yet more than one reply to this post suggests that it's common to believe that embryonic stem cells are the only useful ones to research. Have the anti-research crowd given up trying to argue logically? Are they now going to beat this "one or t
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Rats? (Score:2, Funny)
Cerebrospinal applications (Score:5, Funny)
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That's just insanity... we can deal with that...
Nephilium
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When you get back from treatment, let us know.
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The process could be used to create tremendous pressure in the heads of idiots by growing more brain, which would cause a huge headache for them, so maybe they'd stay home and away from the rest of us. I think it would be more econom
chinese got there first (Score:3, Informative)
Finally. (Score:4, Funny)
What's that you say? Ohhhh...
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Yes, and you're right - I should apologize to his widow.
What's that you say? Ohhh...
Little guys are saving lives/livelihoods (Score:1)
My girlfriend always thought it was kinda mean to use lab rats, but after seeing these "heroes"... she's changed her mind slightly to "these little guys are saving lives"
As a side, this lab had some cool stuff going on.
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My girlfriend always thought it was kinda mean to use lab rats, but after seeing these "heroes"... she's changed her mind slightly to "these little guys are saving lives"
They're 'heroes' only in the same sense that Jewish experimental subjects in Nazi Germany* were 'heroes'. You think the poor little buggers are volunteers? Even if they make a full recovery after their ordeal they'll still be killed and dissected to confirm results. There's no escape and no hope for them.
There's arguments on both sides of the animal testing fence, but whichever side you end up on, you can never claim that there's no cost in terms of pain and suffering. Many human lives may be saved, but
In other news (Score:2)
Rats in labs where scientists had been jailed were shown to have 100% healthier spines than in labs where scientists hadn't been jailed.
Breaking rats backs? (Score:2)
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I know they're not mice, but..... (Score:1)