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   Cold Sore Virus Linked to Alzheimer’s   
   November 12, 2014   
   Alzheimer's Research/ Dementia   
   Alissa Sauer   
   Comments   
      
      
   Two new studies show that a common virus that affects the majority of the   
   population may double the risk for Alzheimer’s disease. Learn more about the   
   connection and what it may mean for future drug treatment options.    
   Cold Sore Virus Linked to Alzheimer's   
   Herpes Simplex Virus May Double Your Risk   
   Two recent studies show a strong connection between a common virus called   
   herpes simplex virus and Alzheimer’s. Herpes simplex virus is the virus that   
   causes the common cold sore and affects the majority of the population.   
   In a study recently published in the journal “Alzheimer’s & Dementia,”   
   researchers say that they found that carriers of the herpes simplex virus   
   doubled a person’s risk for developing Alzheimer’s.   
   Researchers from Umeå University in Sweden took plasma samples from 360   
   people who had Alzheimer’s and another 360 samples from people who did not   
   have the disease. Those who were carriers of the virus were twice as likely to   
   develop Alzheimer’s. A    
   second study completed in July by the same researchers followed over 3,000   
   people for over 11 years. That study also found that carriers of the herpes   
   virus were twice as likely to develop Alzheimer’s.   
   A Promising New Approach for Drug Treatments   
   While the studies only provide proof of a correlation and not causation, more   
   research needs to be done to establish why the connection exists.   
   However, researchers believe that because the virus never leaves a person and   
   can reactivate intermittently it can affect seniors as their immune systems   
   weaken. The virus can then spread to the brain which, researchers hypothesize,   
   may then contribute    
   to Alzheimer’s.    
   Researchers hope that their studies will have an impact on new drug treatments   
   for the disease. Author of both studies and an associate professor of   
   geriatric medicine at Umeå University in Sweden, Hugo Lövheim, said:   
   “Something [that] makes this hypothesis very interesting is that now herpes   
   infection can, in principle, be treated with antiviral agents. Therefore   
   within a few years we hope to be able to start studies in which we will also   
   try treating patients to    
   prevent the development of Alzheimer’s disease.”   
   Does this research surprise you? Do you have concerns about the connection   
   between this virus and Alzheimer’s? Share your questions with us in the   
   comments below.   
      
   Related Articles:   
   The Connection Between UTIs and Dementia   
   Common Prescription Could Raise Risk for Alzheimer’s   
   Lack of Sleep May Cause Dementia   
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   About The Author   
      
   Profile photo of Alissa Sauer   
   Alissa Sauer   
      
   Alissa Sauer has been dedicated to writing articles about Alzheimer's research   
   and senior living for over 4 years. With a Communications degree from the   
   University of Illinois, Alissa strives to help families understand and manage   
   the changes that often    
   accompany caring for a senior loved one. On a personal note, Alissa enjoys   
   traveling around the world as a military spouse and spending time with her two   
   young children and Golden Retriever.   
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