Statins have been in the news again, with banner headlines in the Daily Express proclaiming “Statins halt Alzheimer’s”. This is extremely misleading, but may have given false hope to patients and their families.
A small research project on mice bred to produce excess levels of amyloid protein, a symptom of Alzheimer’s disease in humans, suggested that simvastatin could help to control the disease. However the treatment only worked on young mice which means that it might only be effective in the early stages of the disease, if it worked in humans at all. Two recent peer-reviews of other research into the effects of statins on Alzheimer’s in humans have discovered no improvement in patients. Much more research will be needed to prove whether statins could really help in the early stages of the disease.
Dr Simon Ridley, head of research at Alzheimer’s Research UK, put the study into context in a statement for the NHS Behind the Headlines site. He said: “People should view the results with caution until further research has teased out how simvastatin might be working in these mice, and more importantly, until there is any significant new clinical trial data in humans.”
As a Locum GP, sadly, you may have to explain to your patients and their families that the papers have got it seriously wrong and that statins are unlikely to be of any benefit to humans suffering from Alzheimer’s.
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