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Cold Sore Virus May Be Alzheimer's Smoking Gun
Science Daily is reporting that the virus behind cold sores has been found to be a major cause of the insoluble protein plaques found in the brains of Alzheimer's disease sufferers. Researchers believe the herpes simplex virus is a significant factor in developing the debilitating disease and could be treated by antiviral agents such as acyclovir, which is already used to treat cold sores and other diseases caused by the herpes virus. Another future possibility is vaccination against the virus to prevent the development of Alzheimer's in the first place. The research was just published in the Journal of Pathology (abstract).
Alzheimers runs in families, which is particularly worrisome for me since I have it on both sides of my family. If it is caused by a virus, then why is it passed down in genes? Are some people more sucseptible to this virus, thus there is a gene for vulnerabilty to this virus, instead of a gene for Alzheimers??
With these findings in mind, it would be interesting if someone were to do a study and see if there's a correlation between Alzheimer's incidence and people who have a tendency to get cold sores. Since only 20-40% (according to TFA) of HSV-1 carriers develop cold sores, I wonder if being susceptible to outbreaks indicates a higher risk of developing Alzheimer's later in life. You'd have to correct for all sorts of environment factors, but still, as someone who gets cold sores something awful that would be a very interesting study. Anyways, great article, it's good news if something comes out of this. HSV in its different varieties is already known to be responsible for quite a few diseases so only good can come out of more research into it.