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16 years of Alzheimer's research possibly down the toilet

Discussion in 'BBS Hangout: Debate & Discussion' started by Amiga, Jul 24, 2022.

  1. Amiga

    Amiga Member

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    TLDR: what started as potentially a lawsuit against a drug company ended up revealing potential fraud on an influential Alzheimer's study that many other studies and experiments (funded by NIH and others) depended on.

    <my angry face>

    Potential fabrication in research images threatens key theory of Alzheimer’s disease | Science | AAAS

    But Schrag’s sleuthing drew him into a different episode of possible misconduct, leading to findings that threaten one of the most cited Alzheimer’s studies of this century and numerous related experiments.

    The first author of that influential study, published in Nature in 2006, was an ascending neuroscientist: Sylvain Lesné of the University of Minnesota (UMN), Twin Cities. His work underpins a key element of the dominant yet controversial amyloid hypothesis of Alzheimer’s, which holds that Aβ clumps, known as plaques, in brain tissue are a primary cause of the devastating illness, which afflicts tens of millions globally. In what looked like a smoking gun for the theory and a lead to possible therapies, Lesné and his colleagues discovered an Aβ subtype and seemed to prove it caused dementia in rats. If Schrag’s doubts are correct, Lesné’s findings were an elaborate mirage.

    Schrag, who had not publicly revealed his role as a whistleblower until this article, avoids the word “fraud” in his critiques of Lesné’s work and the Cassava-related studies and does not claim to have proved misconduct. That would require access to original, complete, unpublished images and in some cases raw numerical data. “I focus on what we can see in the published images, and describe them as red flags, not final conclusions,” he says. “The data should speak for itself.”

    A 6-month investigation by Science provided strong support for Schrag’s suspicions and raised questions about Lesné’s research. A leading independent image analyst and several top Alzheimer’s researchers—including George Perry of the University of Texas, San Antonio, and John Forsayeth of the University of California, San Francisco (UCSF)—reviewed most of Schrag’s findings at Science’s request. They concurred with his overall conclusions, which cast doubt on hundreds of images, including more than 70 in Lesné’s papers. Some look like “shockingly blatant” examples of image tampering, says Donna Wilcock, an Alzheimer’s expert at the University of Kentucky.

    The authors “appeared to have composed figures by piecing together parts of photos from different experiments,” says Elisabeth Bik, a molecular biologist and well-known forensic image consultant. “The obtained experimental results might not have been the desired results, and that data might have been changed to … better fit a hypothesis.”

    Early this year, Schrag raised his doubts with NIH and journals including Nature; two, including Nature last week, have published expressions of concern about papers by Lesné. Schrag’s work, done independently of Vanderbilt and its medical center, implies millions of federal dollars may have been misspent on the research—and much more on related efforts. Some Alzheimer’s experts now suspect Lesné’s studies have misdirected Alzheimer’s research for 16 years.

    “The immediate, obvious damage is wasted NIH funding and wasted thinking in the field because people are using these results as a starting point for their own experiments,” says Stanford University neuroscientist Thomas Südhof, a Nobel laureate and expert on Alzheimer’s and related conditions.
     
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  2. Xerobull

    Xerobull ...and I'm all out of bubblegum
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  3. Amiga

    Amiga Member

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    Too Long Didn't Read in a good sense... A quick summary for those that don't have time to read the lengthy and somewhat technical article
     
  4. GIGO

    GIGO Member

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    Why is this thread in D&D?

     
  5. KingCheetah

    KingCheetah Atomic Playboy
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    How do multiple experts miss blatant image tampering from 2006?

    Sounds like willful ignorance.
     
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  6. KingCheetah

    KingCheetah Atomic Playboy
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    Last year, the Food and Drug Administration (FDA) narrowly approved the use of Aduhelm, a new drug from Biogen that the company has priced so highly that it’s expected to drive up the price of Medicare for everyone in America, even those who never need this drug. Aduhelm was the first drug to be approved that fights the accumulation of those "amyloid plaques" in the brain. What makes the approval of the $56,000-a-dose drug so controversial is that while it does decrease plaques, it doesn’t actually slow Alzheimer’s. In fact, clinical trials were suspended in 2019 after the treatment showed “no clinical benefits.” (Which did not keep Biogen from seeking the drug’s approval or pricing it astronomically.)

    https://m.dailykos.com/stories/2022...iberate-fraud-that-has-cost-millions-of-lives
     
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  7. omgTHEpotential

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  8. Xerobull

    Xerobull ...and I'm all out of bubblegum
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    Scary ****. He killed half of all life in the universe.
     
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  9. B-Bob

    B-Bob "94-year-old self-described dreamer"
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    Eh, the "16 years down the toilet" narrative isn't really right. A lot of those experiments questioned the central hypothesis and didn't support it. Those data are useful.

    Hope: (1) they can really PORVE the falsification, and (2) they frogmarch anyone who new the truth but didn't speak.
     
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  10. Amiga

    Amiga Member

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    Yes, that data is useful. I was pissed reading this article. It's 16 years of proving or not proving that central hypothesis that could have been spent elsewhere.
     
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  11. CCity Zero

    CCity Zero Member

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    This is pretty crazy and will have large ramifications. I still have undergrad papers/presentations I did at UT based on this while working towards a neurobio degree.

    I had been using this as an explanation for Alzheimer's disease for what seems like forever now in terms of research time... This kind of reminds me of this: https://en.m.wikipedia.org/wiki/Schön_scandal

    But this will have a much larger impact since you're playing with people's lives. If people didn't trust science before, this will certainly be an extra talking point... Especially in terms of time wasted
     
  12. CCity Zero

    CCity Zero Member

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    Exactly
     
  13. Bandwagoner

    Bandwagoner Member

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    Trust Science
     
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  14. Xerobull

    Xerobull ...and I'm all out of bubblegum
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    [​IMG]
     
  15. Invisible Fan

    Invisible Fan Member

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    That's Thanos's step bro. He snapped and wiped out half the bad data.
     
  16. rocketsjudoka

    rocketsjudoka Member

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    That's a pretty unsettling article. I really don't know enough about this research to have a solid opinion on whether to agree or not but it does show that contrary to a lot belief the institution of science will seek to correct itself. Bad science does exist and there are scientist who out of a desire to pursue fame and funding but there are also many scientist out to prove other scientist wrong.

    The nature of scientific method is to foster doubt and to poke holes at even theories that appear sacrosanct. For example many consider Einstein to be unassalable yet much of physics for the last 60 years has been about proving Einstein wrong.

    That doesn't mean we should not trust the science but we need to understand how science and the context of science. In things like Climate Change or Evolution where there is much political controversy there isn't much scientific controversy because those theories have withstood decades of challenges, centuries in the case of Evolution. Again there is still a possibilty they are wrong but that possiblity is less and less likely as more evidence mounts. The theory that amyloid plaques cause Alzheimers is a relatively new theory based on limited research so it shouldn't be surprising there are holes being found in it.
     
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  17. B-Bob

    B-Bob "94-year-old self-described dreamer"
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    Schön was such an idiot at some level. As I remember it, he was busted for using the same figure in several different papers, but each paper was supposed to show new data for a different material than the first one. When first questioned, I remember him basically saying "the data were still correct and basically the same for each sample, but I just wanted to use the clearest figure of data."

    According to your wiki link there, he sued the university that revoked his doctorate and, in the first trial, won. LOL. But they won on appeal.

    The interesting thing about this new allegation is that comes from a non-dissimilar time, the early naughts.
     
  18. Kim

    Kim Member

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    Finding out these frauds are a good thing in the long run for science. That photoshopping scam is a common one. Another one for science is when you look really hard under the microscope and find the impact that you're looking for from the drug in one section of the sample, but the truth is that it's only happening in one place and not to the entire sample.

    Social science had a big fraud about 9 years ago when this PhD student from a really good school (and got accepted to a tenure track professor job at UCLA I think) made up a ton of data to test maybe social-contact theory or something like that. Basically, the dude showed statistical proof that the more people got to meet gay people in their lives, that they would become more accepting of gay people. Anyhow, that fraud (pretty sure he lost his degree and job offer, though wouldn't be suprised if he was doing well - still a very smart dude) lead to a big change in the academic poli-sci world where all your data is submitted to like this public database for nerds so that everyone can verify your studies/articles/research. That was a huge shift in policy and norms among social science research nerds.
     
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  19. B-Bob

    B-Bob "94-year-old self-described dreamer"
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    [ comment on social science data redacted. ] :D

    [​IMG]
     
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  20. Kim

    Kim Member

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