Seminal study on causes of Alzheimers is retracted

6,504 Views | 68 Replies | Last: 1 yr ago by GeorgiAg
aggiehawg
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Quote:

It may or may not be the most significant retraction of a scientific paper ever, but it certainly is in the ballpark.

The paper helped create and sustain the theory that amyloid protein buildups caused the symptoms of Alzheimer's Disease and was one of a number of apparently fraudulent papers written by Sylvain Lesn, a professor at the University of Minnesota, Twin Cities.
Quote:

All the paper's authors agreed to retract, save Lesn, who has been under investigation for manipulating data.
Quote:

Authors of a landmark Alzheimer's disease research paper published in Nature in 2006 have agreed to retract the study in response to allegations of image manipulation. University of Minnesota (UMN) Twin Cities neuroscientist Karen Ashe, the paper's senior author, acknowledged in a post on the journal discussion site PubPeer that the paper contains doctored images. The study has been cited nearly 2500 times, and would be the most cited paper ever to be retracted, according to Retraction Watch data.
"Although I had no knowledge of any image manipulations in the published paper until it was brought to my attention two years ago," Ashe wrote on PubPeer, "it is clear that several of the figures in Lesn et al. (2006) have been manipulated … for which I as the senior and corresponding author take ultimate responsibility."
After initially arguing the paper's problems could be addressed with a correction, Ashe said in another post last week that all of the authors had agreed to a retractionwith the exception of its first author, UMN neuro-scientist Sylvain Lesn, a protg of Ashe's who was the focus of a 2022 investigation by Science. A Nature spokesperson would not comment on the journal's plans.

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What makes this retraction so significant is that it has driven research into Alzheimer's treatments for nearly two decades, and treatment approaches based on its conclusions have failed to yield results.

If the hypothesis that amyloid protein buildups cause Alzheimer's symptoms is wrong, Lesn is responsible for perhaps billions of wasted research dollars and two decades of scientists following a false lead.
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If it turns out that the entirety of the work was fraudulent--and there appears to be some dispute--I can imagine no punishment harsh enough for Lesn. Alzheimer's is a horrible disease. Creating fraudulent research to enhance one's career when the stakes are so high is sociopathic.

There appear to be quite a number of sociopaths in the biological sciences if recent evidence is any guide, and very few checks and balances to control for this fact.
Via Hot Air.

Several scientific papers have quietly been withdrawn recently.
BadMoonRisin
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It's an awful disease
Bird Poo
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Isn't SAVA, the company in Austin with several ongoing trials, going down the same path of this theory?
FireAg
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Now…investigate the "science" behind man-made global warming and decarbonization…

Now do COVID "vaccines"…

When are people going to realize that the driving force behind "science" is often money, and not solutions…
eric76
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I've often thought that it was more likely due to the neurofibrillary entanglement causing the cell to be unable to transport necessary ions to the neuronal cell body.
Camo
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FTB
geoag58
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eric76 said:

I've often thought that it was more likely due to the neurofibrillary entanglement causing the cell to be unable to transport necessary ions to the neuronal cell body.


I was thinking the same damn thing.
Fight against the dictatorship of the federal bureaucracy!
Urban Ag
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geoag58 said:

eric76 said:

I've often thought that it was more likely due to the neurofibrillary entanglement causing the cell to be unable to transport necessary ions to the neuronal cell body.


I was thinking the same damn thing.
Um, yeah. Like I was thinking the same thing too. Totally.

flakrat
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longviewag04
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As someone who lost 2 grandparents to Alzheimers but had hope from the research and funding for a cure, this guy just joined fauci on my s___ list
Kenneth_2003
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So nearly 2 decades of follow up research has been based on manipulated data?

THe saddest thing is that research on things like alzheimers is VERY slow because you're study subjects must live out their natural paced lives.

I can build a test stand that can simulate a decade of foot traffic on a carpet or a decade of weathering on wooden deck in a couple of weeks. You can't accelerate the deterioration of someone's mind.

This sets a potential cure back for potentially an entire generation or more.
mickeyrig06sq3
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FireAg said:

Now…investigate the "science" behind man-made global warming and decarbonization…

Now do COVID "vaccines"…

When are people going to realize that the driving force behind "science" is often money, and not solutions…

Don't forget pride. I'd almost put that ahead of money in causing junk studies.
Harry Stone
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and that was peer reviewed
FireAg
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Harry Stone said:

and that was peer reviewed

At some point folks need to admit that the peers reviewing are making bank too…it's not about the science…it's about enrichment…
aggiehawg
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Harry Stone said:

and that was peer reviewed
And quoted thousands of times in other works.
Kenneth_2003
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Harry Stone said:

and that was peer reviewed
How would peer review catch or know about underlying manipulation of data?

I'd always understood peer review to be review of interpretations, analysis, and application of previous research.
Emotional Support Cobra
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There was a report today that dietician Dean Ornish found some successful results with healthy lifestyle changes to include heart healthy diet, exercise, emotional support. Not curing but slowing down.
Brutal Puffin
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Research grants trump science. Every damn time.
aezmvp
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This study directed hundreds of millions of dollars of research. Should be brought up on massive fraud charges.
Owlagdad
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Brutal Puffin said:

Research grants trump science. Every damn time.
always follow the money.

Promising new drug that could usurp a money maker? FDA shoots it down

corrupt as hell.



eric76
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geoag58 said:

eric76 said:

I've often thought that it was more likely due to the neurofibrillary entanglement causing the cell to be unable to transport necessary ions to the neuronal cell body.


I was thinking the same damn thing.
About 28 or so years ago, some bozo who claimed to be a neuroscientist indicated that he thought that the neurofibers were the neurons themselves. That was all it took to know that he was a complete fake.
techno-ag
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We had a good discussion on retractions last month. The site Retraction Watch is a good one.

https://texags.com/forums/16/topics/3458609/
Trump will fix it.
Madman
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aggiehawg said:


Via Hot Air.

Several scientific papers have quietly been withdrawn recently.

Its more than several. So many that several academic journals are now under review and may not exist soon. Saw a story recently one journal had as many as 11,000 papers they "reviewed" found to be AI generated bringing a real question about their actual role as a gatekeeper was.
TexasRebel
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FireAg said:

Now…investigate the "science" behind man-made global warming and decarbonization…

Now do COVID "vaccines"…

When are people going to realize that the driving force behind "science" is often money, and not solutions…


If you find a solution to a problem, you stop getting money.
TheCurl84
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So if I'm reading this correctly, this has been the leading theory on the cause of this disease, and now they have conclusive proof that it is not a cause of the disease.

Where does that leave us? Are there other promising theories that are being tested, or is the scientific community back to square 1?

Detmersdislocatedshoulder
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sounds like a good candidate for the NIH. friends with fauci?
TexasRebel
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Kenneth_2003 said:

Harry Stone said:

and that was peer reviewed
How would peer review catch or know about underlying manipulation of data?

I'd always understood peer review to be review of interpretations, analysis, and application of previous research.


Or repeating the methods to get similar results.
Fightin_Aggie
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Bird Poo said:

Isn't SAVA, the company in Austin with several ongoing trials, going down the same path of this theory?


When their stock went nuts after test results a few years ago I went by their offices on capital of Texas highway to check them out. Middle of the work week middle of the day and their was no one their and it did not look very used. Appeared most of their studies would need to be our sources based on the office location. Would not surprise me at all if they had suspect data.
FireAg
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Go research the carbon footprint of a single Tesla battery…compare it to the carbon footprint of an internal combustion engine over its lifetime…

The amount of things we have been flat out lied to about is astonishing…
eric76
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TheCurl84 said:

So if I'm reading this correctly, this has been the leading theory on the cause of this disease, and now they have conclusive proof that it is not a cause of the disease.

Where does that leave us? Are there other promising theories that are being tested, or is the scientific community back to square 1?
Only that the research was bogus.

It still may be the case that it is the amyloid plaques but it could be the neurofibrillary entanglements. It could even be something else entirely.
Ags4DaWin
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Kenneth_2003 said:

So nearly 2 decades of follow up research has been based on manipulated data?

THe saddest thing is that research on things like alzheimers is VERY slow because you're study subjects must live out their natural paced lives.

I can build a test stand that can simulate a decade of foot traffic on a carpet or a decade of weathering on wooden deck in a couple of weeks. You can't accelerate the deterioration of someone's mind.

This sets a potential cure back for potentially an entire generation or more.


I was reading that one of the reasons people started to second guess this was that there was a tighter link to things like diabetes than these amyloid proteins.

Some people are now calling alzheimers diabetes of the brain.

Not sure how well founded that is in data....but there it is.

This is similar to how the data in the seminal study linking cholesterol, specifically animal fats like butter to heart disease in the 1960's was mostly fabricated and it seems to be more multifactoral and based on overall inflammation, diabetes, with a cholesterol component.

With plant based fats being a heavier contributor than animal fats
FTAG 2000
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Bird Poo said:

Isn't SAVA, the company in Austin with several ongoing trials, going down the same path of this theory?

They are targeting a different protein and receptor.
Rapier108
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The amyloid protein theory was around long before 2006.

Maybe this paper is what pushed it to the forefront, but it was already out there.

And because someone will make the accusation, I am not defending the paper or its authors. Just noting that other doctors/scientists had been looking into it well before 2006.
"If you will not fight for right when you can easily win without blood shed; if you will not fight when your victory is sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves." - Sir Winston Churchill
AGC
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This proves the scientific method works.
Emotional Support Cobra
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Ags4DaWin said:

Kenneth_2003 said:

So nearly 2 decades of follow up research has been based on manipulated data?

THe saddest thing is that research on things like alzheimers is VERY slow because you're study subjects must live out their natural paced lives.

I can build a test stand that can simulate a decade of foot traffic on a carpet or a decade of weathering on wooden deck in a couple of weeks. You can't accelerate the deterioration of someone's mind.

This sets a potential cure back for potentially an entire generation or more.


I was reading that one of the reasons people started to second guess this was that there was a tighter link to things like diabetes than these amyloid proteins.

Some people are now calling alzheimers diabetes of the brain.

Not sure how well founded that is in data....but there it is.

This is similar to how the data in the seminal study linking cholesterol, specifically animal fats like butter to heart disease in the 1960's was mostly fabricated and it seems to be more multifactoral and based on overall inflammation, diabetes, with a cholesterol component.

With plant based fats being a heavier contributor than animal fats



This is basically where Dr.Ornish is coming from. He promotes low fat high fiber vegan diets *for people with heart disease* originally targeting patients needing to lose weight for heart surgery. This evolved into substantive and positive lifestyle changes and he studied the impact on other areas.

The recent study has a small group with short timelines, but found positive changes for those with early onset dementia likely due to the strict low-inflammation diet and no processed food/oils.

Not to say that you can't lose weight on keto etc. But for this particular type of individual to target these issues, his diet works well.
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