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NIH Confirms Protocol To Reverse Type 1 Diabetes
Posted by
CowboyNeal
on Sat Nov 25, 2006 09:53 AM
from the sugar-more-than-pleased dept.
from the sugar-more-than-pleased dept.
FiReaNGeL writes "In 2001, researchers at Massachusetts General Hospital demonstrated the efficacy of a protocol to reverse type 1 diabetes in diabetic mice. New data from a study performed at the National Institutes of Health provides additional confirmation of the ability to reverse type 1 diabetes and on the role of spleen cells in islet regeneration. Spleen cells appear to contribute to islet recovery more in mice who are older and with more advanced diabetes compared with younger mice with less advanced diabetes, in which regeneration of remaining islets may be the dominant mechanism."
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Researchers May Have Found Cause of Type 2 Diabetes 181 comments
ozmanjusri writes "Scientists at Sydney's Garvan Institute have identified an enzyme called PKCepsilon as the active agent that blocks the production of insulin in diabetics. Insulin injections and implants try to control levels but do not address the reasons why insulin production is failing. This discovery may allow pharmaceutical companies to develop a drug to block the enzyme, allowing cells in the pancreas to function normally, though the team's leader, Trevor Biden, says 'What we've identified is a target that we can now latch onto to get therapy, but the journey from target to tablet of course is a long one ... It's probably going to take another 10 years at least to get something that's effective in humans.'"
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Missing something? (Score:5, Insightful)
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Now, if you think that cancer has been cured in mice - sure, but that is old news. Cancer has probably been cured in mice a thousand times, but until we can start breeding and treating people like mice it will probably take a li
Re: (Score:3, Funny)
Uhm... hello????
Everybody knows that the Apollo missions were faked!
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It is a promising and comparatively cheap cure if it works the same way in people. There are about 10,000 things that could go wrong between here and there though.
Re:Missing something? (Score:4, Informative)
There is no such thing as severe/end-stage type I diabetes. Usually by the time you are diagnosed, you are at the "severe/end stage" - Your pancreatic beta cells are gone or nearly so. Insulin can prolong your life for decades, and if your bloodsugars are carefully controlled (via aggressive and careful diet, insulin dosing, and glucose monitoring), you will live just as long a life as a normal person.
If you're talking about severe diabetes complications (Kidney damage, retina damage, etc.)- By the time those present themselves, the cumulative damage of years of abnormal bloodsugars is done and curing the underlying diabetes isn't going to help.
Last but not least, you clearly missed the "In the 2001 and 2003 studies, Faustman and colleagues treated end-stage nonobese diabetic (NOD) mice with Freund's complete adjuvant, a substance that suppresses the activity of the immune cells that destroy islets in type 1 diabetes." line. Immunosuppressants are scary shit, and usually considered an absolute last-resort treatment when the other choice is death. Admittedly, it sounds like this MIGHT be a rather targeted immunosuppressant with fewer side effects than most, but still, it's an immunosuppressant.
I've been a type I diabetic for over a decade and have been looking forward to a cure for years. While this article gave me a lot of hope, the mention of immunosuppressants took a lot of it away. There are already quite a few treatments for Type I diabetes that are proven to work, but generally are only given to those who are already on immunosuppressants for another reason. (For example, pancreas or pancreatic beta cell transplants are only given to patients already receiving another transplant who will be on antirejection drugs and immunosuppressants anyway.)
That said, it sounds like there are fewer side effects than other immunosuppressants, as I have heard that there are plans for human trials starting in 2007 or 2008. Six years from the first results in mice to the first human trials is actually quite quick. There are plenty of examples of cases where botched human trials nearly killed the test cases. (Remember that incident a year or two in London where 6-8 test patients basically swelled up like balloons and found that six months later most of them had trashed immune systems and the beginnings of cancer?) People are REALLY, REALLY careful with human trials.
It sounds like they are conducting one more large-scale study in mice before beginning human trials. They didn't have money for it before, but they received a large amount from one of Lee Iacocca's charities to fund further studies.
Given the involvement of immunosuppressants, I hope they are extra careful with human trials. I can wait another decade if it means I won't be developing cancer or a few years after treatment.
Parent
Re: (Score:3, Informative)
http://en.wikipedia.org/wiki/Freund's_adjuvant [wikipedia.org] - One of the core aspects of this treatment. Note that it appears to be a REALLY nasty drug with a lot of side effects, and is in fact currently forbidden for use in humans. (So I have no clue how they are using it in a human trial...)
http://en.wikipedia.org/wiki/Denise_Faustman [wikipedia.org] - There's a lot of co
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Also, some very early experiments in humans have been done in Israel, using a less-toxic immune-suppressive (which doesn't suppress as much). No success, but there may be some data from it that it was heading in the right direction (see SciAm article).
This
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The research in question is done by Faustman financed (at least partly) by the Iococca Foundation. ( http://www.iacoccafoundation.org/grants_diabetes_r esearch.html [iacoccafoundation.org] )
They're preparing for human trials of at least part of this protocol, but it seems
Oblig /. (Score:2, Funny)
You know... (Score:5, Insightful)
Type I, not Type II (Score:5, Informative)
Type I diabetes [wikipedia.org] comes from an autoimmune reaction against the insulin-producing cells. It is more common in children, and accounts for about 10% of all insulin cases.
Type II diabetes [wikipedia.org] tends to be caused by an insulin insensitivity - the insulin receptor in cells looses its effectiveness. The complications from Type II diabetes tend to be worse, and none of them are pleasant. There are many risk factors for Type II diabetes, some of which a person can't do anything about (i.e., genetic predisposition), but the primary risk factor is obesity and inactivity. So, for the foreseeable future, doctors will no doubt continue to caution people to be vigilant about their weight and, for those under treatment for diabetes, to still be especially vigilant about monitoring their blood sugar levels.
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Type 2 diabetes deteriorates if not kept well-controlled. In advanced stages, the hyperglycemia oxidizes proteins and kills off pancreatic islets, until the pancreas is unable to produce insulin, just as in Type 1.
So if an advanced type-2 diabetic fixed up their insulin resistance, they might still be unable to produce insulin. And the therapy in the article might then be helpful to them too!
Re: (Score:3, Interesting)
You are right on the result (pancreas no longer able to produce insulin), but your mechanism (oxidative stress) is at best only part of the picture. If oxidized proteins induced by hyperglycemia were cytotoxic, a lot more cell types in addition to pancreatic islets would be killed off.
The exact mechanism of beta cell burn out in advanced type II diabetes is unclea
Re:itll be years (Score:4, Insightful)
Parent
Re:itll be years (Score:5, Informative)
Parent
Re:itll be years (Score:4, Insightful)
Parent
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You *must* watch your diet all the time or risk coma/death very quickly in the short term, or bad side effects (blindness, loss of limbs, organ failure) in the long term. Getting drunk can get a person in trouble fast, especially if vomitting occurs.
First time your friends see you get sugar low, you'll get looked on as a freak by many people. A sugar low means you'll lose thinking ability (you look dumb) and won't real
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Type 1 Diabetes is not fun to have, and it's not something to be shrugged off. I'm sure that some diabetics experience less problems than others, but it's not a disease to be shrugged off as if talking about a wart or a cold. My life is a bit more complex now than my pre-diabetic life; Every day I must constantly keep track of my insulin, food, and exercise, and t
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Insulin pumps can be pretty darned dangerous, too. Over 25% of diabetes related deaths are actually due to (accidental or intentional) insulin overdose. At least it's nice to know that people are working on the problem though.
Re:itll be years (Score:4, Funny)
Parent
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OK, look at it the other way. Just because you're prepared to die to test out a new treatment doesn't mean that I'm prepared to kill you with it. We usually have to be pretty darned sure that something won't be harmful before starting testing on humans.
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In 2001 one researcher managed to come up with a repair in mice and published. Then other scientists couldn't repeat the findings. Now a few years later we have scientists who can repeat the findings. Sounds like it is progressing very well and at a pace that you would expe