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Thursday 10 May 2018

Can over the counter drugs prevent Alzheimers?


Could one of the most consumed painkillers on the market stop Alzheimer’s? If only, that would be great. However, it’s a little more complex. Last week The Sun and (of course) the Daily Mail, along with other major news outlets published an article stating that ibuprofen has the potential to ‘wipe out’ Alzheimer’s. The news orients itself firmly to state that this study is a significant scientific breakthrough. They know how to stop Alzheimer’s, that is amazing. You can source the paper they are referring to. This is open access, you can read the study yourself. When we get studies like this, we expect double-blinded randomly controlled clinical studies that can give us (hopefully) unbiased results, which can then be replicated to establish connections. As this is a big disease with which the mechanism and pathology are very little understood, I would expect big things from this study, and hope it was more of a review of double-blinded clinical studies rather than one.

https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/200mg_ibuprofen_tablets.jpg/800px-200mg_ibuprofen_tablets.jpg

The…work

I won’t use the word ‘study’. It is kind of insulting to the word given the terminology used. The work was misnomer-ly titled: Alzheimer’s Disease Can Be Spare by Non-steroidal Anti-Inflammatory Drugs. What media outlet wouldn’t go crazy over an article with that title? Not too shockingly the work carried out was not a double-blinded randomly controlled study, but instead the study looked at the amount of amyloid-beta protein in the saliva. This is a protein that some researchers believe to be higher than average in the initial stages of dementia. I would like to point out, there is no proven connection here between the protein concentration and the onset of Alzheimer’s disease, this is just a hypothesis. It could be right, but it could also be wrong. The test was carried out on 23 people who had Alzheimer’s disease and 31 people acted as a control. I will repeat the title here:

Alzheimer’s Disease Can Be Spared
by Nonsteroidal Anti-Inflammatory Drugs

…They appear to have missed off: ‘by using uneven controls and making a titanic jump to the conclusion with remarkably small sample numbers’. But hey, that’s the nature of science, sadly. The paper itself doesn’t even mention ibuprofen, it states ‘non-steroidal anti-inflammatory drugs’ (NSAID) not specifically ibuprofen as the articles suggest. Nevertheless, the authors state that NSAIDs appear to be effective for the prevention of the disease. This was based on testing the subjects and finding an ‘elevated’ level of the protein in those who are at risk of developing Alzheimer’s when compared to those who are not at risk. Even after carrying out one test, the researchers state that these elevated levels are present throughout a subject’s lifespan. They then go on to suggest that people should be tested at the age of 55 for elevated amyloid-B protein.
But if that elevated protein level is an indicator of Alzheimer’s onset, and it is present throughout the person’s life, why wait 55 years to be tested? You could be tested earlier on and start actual clinically trialled medical treatments. Again, only 23 people with Alzheimer’s were tested in this study compared to the other ‘control’ subject. But how do we know any of them did (or will) go on to develop the disease?

We are unsure if these protein levels change over time, the authors of this study say it stays throughout life. But, as I stated, if that was true then you could be tested much earlier on to prevent the disease. This study does not tell the scientific world, or indeed the people who have Alzheimer’s, anything new about the disease and how it can be prevented.

Bias

There is also a massive potential for bias in this study. Published in a peer-reviewed journal (which means someone in this field actually has checked this work before allowing it to be published), one of the opening gambits of the article are:
  
Our grant application to support the research was rejected when a peer reviewer evaluated it as a “crazy hypothesis”.



I have genuinely never seen anything like that written in a published paper that wants to be taken seriously – and I have read a hell of a lot of papers that really should not have been published. This research was carried out by the researchers and founders at Aurin Biotech, a pharmaceutical company based in Canada. The paper states that no funding sources were declared, but there is a massive potential for a conflict of interest as the drug developers themselves designed and carried out the test.

The Harm

Alzheimer’s is not a nice disease. My grandparents are terrified of getting it, they have seen their friends die from it and they have friends currently deteriorating from it. Fear is what drives most of the articles that I write about in these blogs. Fearmongering to get people to panic and read their articles is all the media is doing, and people will fall for it. There are problems with taking NSAIDS for no reason. NSAIDS are linked to various stomach problems and most recently have been linked to an increased risk of heart attacks in some people. It has been recommended they be used with caution.

Dr McGeer said: 'If they exhibit elevated Abeta42 levels then, that is the time to begin taking daily ibuprofen to ward off the disease.’

Many people could read these articles and be in fear of Alzheimer’s so much, they will do anything to prevent it occurring. Pharmaceutical over-the-counter drugs can’t do harm if they’re developed to help, right? So, I’ll just take 1-2 a day (papers recommendation) and then I won’t get diseases. No, there are serious adverse health effects for the misuse of medication and over-the-counter drugs are not exceptions to these risks. There are only three known drugs recommended by the National Institute for Health and Care Excellence (NICE). These drugs are on the market and shown to be beneficial at slowing down the progress of early onset Alzheimer’s.

Conclusion

The mammoth amount of irresponsibility carried over by the media on this one is ridiculous. Articles such as this one where common drugs are recommended to treat such complex diseases should be approached with caution and discussed with a doctor. The blame is not solely on the media with this one, the paper itself is riddled with problems, mostly with the conclusions. These ‘experts’ have then commented to the media, supporting how NSAIDS will work in slowing Alzheimer’s progress. The claims made in the article and then propagated by the media need thoroughly analysing a verifying before being put out to the general public. I’ll say this again to hammer the point; scientific media communication is crucial for the understanding of science by the general public. This requires scientists to be able to clearly communicate results without the media twisting it as click-bait or irresponsible fear-mongering. The ‘r’ of The Sun who wrote this article has a degree in history. Not medical science. Not biology. Not chemistry. History. How are regulatory bodies allowing this miscommunication to keep on going and when does it stop?