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Science

We May Finally Know What Causes Alzheimer's -- and How To Stop It (newscientist.com) 208

We may finally have found the long-elusive cause of Alzheimer's disease: Porphyromonas gingivalis, the key bacteria in chronic gum disease. New Scientist: That's bad, as gum disease affects around a third of all people. But the good news is that a drug that blocks the main toxins of P. gingivalis is entering major clinical trials this year, and research published Wednesday shows it might stop and even reverse Alzheimer's. There could even be a vaccine. Alzheimer's is one of the biggest mysteries in medicine. As populations have aged, dementia has skyrocketed to become the fifth biggest cause of death worldwide. Alzheimer's constitutes some 70 per cent of these cases and yet, we don't know what causes it.
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We May Finally Know What Causes Alzheimer's -- and How To Stop It

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  • by moehoward ( 668736 ) on Thursday January 24, 2019 @10:08AM (#58014098)
    Just floss people. And don't FORGET to floss. The more you floss, the less you will forget to floss. See how that works?
    • by Oswald McWeany ( 2428506 ) on Thursday January 24, 2019 @10:20AM (#58014140)

      Just floss people. And don't FORGET to floss. The more you floss, the less you will forget to floss. See how that works?

      I'm really not much of a dancer though.

    • Re: (Score:2, Funny)

      mental floss ?
    • by Uteck ( 127534 ) on Thursday January 24, 2019 @10:52AM (#58014324)

      Maybe this will prompt changes to include dental coverage in with medical and not some half covered separate insurance with limited payout.
      Diet is so important to your health, but getting damaged teeth fixed is expensive and mostly out of pocket. So you end up eating pre-processed crap that is bad for your health.

      • by lgw ( 121541 )

        Maybe this will prompt changes to include dental coverage in with medical and not some half covered separate insurance with limited payout.

        I think the difference in insurance companies is just the result of the difference in practitioners. Back when the whole idea was new, companies going around to convince doctors to accept insurance happened to be different from companies focusing on dentists.

        I don't think there's any evil conspiracy here, and I'm convinced the limited payout limits the number of crowns your dentist will one day insist you need each year. Funny thing how judgement calls work when profit is at hand.

        You don't generally reali

        • You don't generally realize how odd the whole situation is until you need dental surgery, and get deep into the confusion of what's covered by dental vs medical insurance.

          So true. My wife is having surgery next month to remove a very belated wisdom tooth, and finding an oral surgeon that could bill it to our medical insurance was ridiculous. Ended up having to go with somewhere an hour away, even though there's a surgeon 10 minutes from our house.

      • eating pre-processed crap that is bad for your health.

        But I *LIKE* pre-processed crap. I consider it my pay-it-forward duty: With all of the preservatives, aspartame, Red Die #2, and all, I'm saving the mortician time and effort.

        If FRUITCAKE or BACON can look good after 100 years, so can I -- alive or dead.

      • Diet is so important to your health, but getting damaged teeth fixed is expensive and mostly out of pocket. So you end up eating pre-processed crap that is bad for your health.

        Wait ... expensive dental care is the reason why people eat "pre-processed crap"?

        I think you're missing a link or two in the chain of your logic there.

      • I always assumed that crappy dental coverage was a byproduct of the fact that a lot of dental problems are preventable if you take care of your teeth.

        I actually think they should provide better coverage for major dental work like crowns and root canals, but worse coverage for fillings.

        Some of the problem may be shady dentists, too. I've run into dentists that are really big on pushing work that is pretty marginal in terms of necessity, and it seems like there's a lot of effort to push expensive products in

    • by dargaud ( 518470 )
      "Floss had never been researched by the committees that review science [poynter.org]". In other words it's never been studied, and it's mostly bullshit, unlike other dental cares like brushing or adding fluorine to water.
    • by ledow ( 319597 )

      And yet - there are almost no studies I can find where the statistics for Alzheimer's are directly correlative to dental health - literally it's death rate is low in low-health countries only because they die of other things first, but the incidence when that's factored out is the same.

      Even between developed countries with insane dental habits versus those more lax (e.g. Europe etc. it's not neccessarily normal to floss every single day, especially if there's not something stuck), Alzheimer's prevalence is

      • So like nobody I know in the US flosses regularly. Well, my dentist and his hygienist claim to. Some people are prone to gum disease, some are not. I almost never floss... never had a gum problem in my many decades of life. Hoping I'm staying in the 2/3 of the world who don't get gum disease. If you get it though, fuck me, go to the dentist, floss... rinse with garlic, eat cat litter, whatever the hell fixes it... because not only is alzheimer's a terrible way to get knocked down, you don't want gum disease

      • Yes, and just because gum disease CAN cause Alzheimer's (in mice) doesn't mean it is the main cause in humans. (I don't think this study is even that strong.) There is a good chance that Alzheimer's is like cancer -- there may be several different causes that all manifest in the same kind of failure in the brain.

        On flossing... I have always thought that, unless you actually have gum disease, the main benefit is so that the dental hygienist has less to do when they clean the plaque off of your teeth. I

    • That's bad, as gum disease affects around a third of all people. But the good news is that a drug that blocks the main toxins of P. gingivalis is entering major clinical trials this year,

      Just floss people. And don't FORGET to floss. The more you floss, the less you will forget to floss. See how that works?

      No, you missed the important part of the story. It's very important that you solve this problem with a drug which is entering major clinical trials this year! Otherwise, how will the poor starving yacht builders get work?

  • by Anonymous Coward on Thursday January 24, 2019 @10:24AM (#58014156)

    "Poor oral health is a risk factor for Alzheimer’s disease. What’s not clear is whether gum disease causes the disorder or is merely a result"

    EDITORS, EDIT !

    • by Anonymous Coward on Thursday January 24, 2019 @10:57AM (#58014358)

      Did you read the *entire* article, or did you just stop when you got triggered?

      "Some brain samples from people without Alzheimer’s also had P. gingivalis and protein accumulations, but at lower levels. We already know that amyloid and tau can accumulate in the brain for 10 to 20 years before Alzheimer’s symptoms begin. This, says Lynch, shows P. gingivalis is a cause of Alzheimer’s, not a result."

    • by gweihir ( 88907 )

      Actually, the article specifically discusses indications why the gum disease is likely the cause and not just an effect.

  • until you factor in the inevitable greed variable from the Pharmaceutical Cartel.
    You know as well as I what they're going to do.

    They'll buy it up, crank the price to the point of sheer lunacy and charge folks something like $100,000+ for the treatment.

    Even if we have cures for all the diseases that ever existed, until someone regulates the GD Pharmaceutical industry, it will only be an option for the super-rich.
    ( I'm not about to hand over my entire life's savings to be ' cured ' only to live in financial m

    • They'll buy it up, crank the price to the point of sheer lunacy and charge folks something like $100,000+ for the treatment.

      Think through what you would do if you owned the rights to it and wanted to maximize profits. Assume cost of production/distribution is fairly low, which is typically the case, and cost of development was ~$1B.

      Choice 1: Price it sky high, say $100k. Sell a few thousand units (let's be really generous and say 100k) to people who (a) have the money and (b) are developing Alzheimer's or are worried they will. Revenue = ~$8-9B.

      Choice 2: Make it affordable, say $100. Sell it to everyone as a prophylactic.

      • by epine ( 68316 )

        Choice 2: Make it affordable, say $100. Sell it to everyone as a prophylactic. Heck, get governments behind you as for vaccines. Revenue = ~$500B.

        $100/year over what, your entire adult life, but just in wealthy America? Or were you thinking you're going to push out USD $100/person one-time inoculation to 90% of Asia and most of Africa, too?

        How do you make the antidote weak enough to require annual booster shots, and fragile enough to scare people into never skipping a dose, without also making it altogether

    • If you're that bothered about the cost of medical care (which I can understand), a very simple way to reduce the cost is to call and *ask*.

      My doctor said I needed an MRI and handed me the phone number of an MRI place. I called them and asked the price. It took them about five minutes to figure out it would cost $1,500. I then did a Google search for "Dallas MRI". The very first place listed in the Google search results did it for $450.

      A year later my wife needed an MRI. She went to the pace that charges $45

    • No, I don't think that this will occur. What is more likely is that several major governments will buy the research instead and simply give away the treatment.

      The reason I say this is that a person with Alzheimer's Disease costs money to look after. Even if the state isn't paying, then the person is still going to be a drag on the State since people who are looking after the dementia sufferer are not doing other things which would be producing tax revenue. Whichever way you slice it, demented people are a d

    • In the US, pharmaceutical research is primarily market driven (although some government funding is available for less-lucrative areas, such as vaccines). As a result, pharmaceutical companies want returns on their substantial investment in research and drug development which are extremely expensive activities (and often result in nothing), and therefore charge the maximum amount possible to recover these costs.

      There are pros and cons of this approach.

      Pros:
      -Increases the total amount of money invested in d
  • by mykepredko ( 40154 ) on Thursday January 24, 2019 @10:30AM (#58014192) Homepage

    I remember twenty/thirty plus years ago when researchers found aluminum ions in the brains of Alzheimer's sufferers and there was the suggestion that cooking without aluminum pots and pans would prevent Alzheimer's. It seems that the aluminum ions were a symptom of Alzheimer's and not a cause - but on the plus side it gave steel cookware a good boost.

    If it's true that this bacteria causes Alzheimer's, then it's good news as it should be fairly easy to eradicate.

    • I remember twenty/thirty plus years ago when researchers found aluminum ions in the brains of Alzheimer's sufferers and there was the suggestion that cooking without aluminum pots and pans would prevent Alzheimer's. It seems that the aluminum ions were a symptom of Alzheimer's and not a cause - but on the plus side it gave steel cookware a good boost.

      If it's true that this bacteria causes Alzheimer's, then it's good news as it should be fairly easy to eradicate.

      Yeah... my father was convinced that Antiperspirant (aluminium based) was the cause of Alzheimer's and tried to convince everyone to stop wearing it. Thankfully for my nose,I don't think anyone took his advice.

    • by Anonymous Coward on Thursday January 24, 2019 @11:39AM (#58014536)

      Same with the beta-amyloid plaques found in the brain of Alzheimer's sufferers. I worked on a monoclonal antibody treatment about 10 years ago that targeted these clots. The antibodies broke them up good but did not alleviate the condition or prevent the plaques from returning. They were symptomatic rather than causative.

      Fact is, this is just another hypothesis among many. Other areas of interest are increased infection of herpes simplex (mouth sores) in the areas of the brain that are going bad. Antiviral trials are encouraging. Fungal infection has also been suggested since the disease is slow progressing like a fungal infection. Gum disease is just another hypothesis in a long line of em.

  • My grandma had it. My mother has it know, and it's getting worst.
    While I do believe it's too late for her, and even if it's available I will never have anything near the amount of money this may require, there is hope for me and my 2 brothers in 20 years (statiscally, one of us should have it).

    • by laosland ( 55769 )

      I'm in the same boat as you. When my grandmother lived with my parents the last couple years of her life, it was really apparent how bad Alzheimer's really is. I really don't want to go through it, the last stage is a heart breaker.
      I'm really hoping that this research is correct.

  • If true... (Score:4, Insightful)

    by tomhath ( 637240 ) on Thursday January 24, 2019 @10:45AM (#58014294)

    "If borne out in clinical testing, COR388 could represent a wholly new approach to addressing a disease estimated to affect more than 5.4 million people in the United States." - Business Wire article [businesswire.com]

    I really hope this turns out to be a breakthrough. But as the debunked Buzzfeed story showed us, something prefixed with "if true" isn't necessarily true.

  • by EvilSS ( 557649 ) on Thursday January 24, 2019 @10:56AM (#58014352)
    This is about the fifth thing in the past year I've seen that has been called out as the cause of Alzheimer. I really wish the media would stop jumping on these initial papers before they have been fully validated and reproduced.
  • by r2kordmaa ( 1163933 ) on Thursday January 24, 2019 @11:36AM (#58014524)
    They were able to find some cases with Alzheimer, but no bacterial infection, perhaps they should look harder? 94% match in a sample size of 54 is hardly a case closed kind of thing. Good work nevertheless, but one should be a bit more careful before declaring groundbreaking success.
  • In a landmark study I'm totally sure exists somewhere, it was discovered that 100% of Alzheimers were life-long heavy users of the gas "oxygen". With this indisputable evidence in hand researchers say it looks like the end of Alzheimers is in sight. Preventative measures are easy to describe and implementation can happen in the next 5-10 years. Options range from complex operations like shifting to a methane based metabolism or switching to photosynthesis to as simple as preventing air intake to block the a
  • by ArhcAngel ( 247594 ) on Thursday January 24, 2019 @11:54AM (#58014606)
    There's a reason they call Alzheimer's Diabetes 3. [nih.gov]
      • Nope to sugar causing plaque or nope to Alzheiner's being called diabetes 3? I can assure you both statements are correct. and as far as vascular dementia and Alzheimer's goes...both can be mitigated with a low carb (sugar) ketogenic diet.
        • I can assure you both statements are correct.

          I can assure you the paper I linked says you are not correct.

          It was an interesting lead in 2008, which is why they did the study that culminated in the 2009 paper I linked.

          • Not correct about what? You keep dodging the question. Alzheimer's is most definitely also referred to as diabetes 3 and the link between sugar and plaque has been well established for over a hundred years. And the paper you linked does not even mention plaque. I'm not even sure what you are trying to argue against. I never said Alzheimer's and vascular dementia are the same condition.
  • https://www.sciencenews.org/ar... [sciencenews.org] I guess I'm glad to see that they're looking for infections as to the cause...
  • But, given that, theories need to be proven, and clinical trials fail all the time.

    I remember this one trial that cause brain cells to leak. Not a good side effect.

  • by lamer01 ( 1097759 ) on Thursday January 24, 2019 @05:36PM (#58016934)
    And, did you notice that they do not defeat the bacteria, just their toxins. So, we would need to be on their pills for the duration. BTW, my mother in law has alzheimers and she has perfect teeth. I know this is anecdotal but definitely proves there are other factors here.

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