From: hounddog23x@gmail.com   
      
   Two New Studies Suggest Common Cold Sores Double Risk of Alzheimer's Disease   
   HealthOctober 25, 2014   
      
      
   Two new Swedish studies say that herpes simplex virus infection increases the   
   risk of Alzheimer's disease and even being a carrier of certain antibodies   
   against the virus doubles the risk.   
      
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   Herpes simplex is the causative agent of common cold sores. Its infection   
   affects almost 90 percent of the population, as reported in this study.   
   According to American Academy of Dermatology, getting this virus for single   
   time makes a person its carrier    
   for lifetime.   
      
   According to Dr. Hugo Lovheim, study author and an associate professor in the   
   department of community medicine and rehabilitation at Umea University in   
   Sweden, this finding is a breakthrough.   
      
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   He said, "Whether treatment of herpes infection with antiviral drugs may slow   
   the Alzheimer's progression is not known, but is certainly worth investigating   
   in clinical studies."   
      
   Other experts didn't accept the relation between herpes infection and   
   Alzheimer's disease as no clear mechanism was mentioned.   
   "From time to time data such as these appear in the literature, but they do   
   not address causality or mechanism. The new data are likewise not definitive,   
   and they do not say anything new about the association," said Dr. Sam Gandy,   
   director of the Center    
   for Cognitive Health at Mount Sinai Hospital in New York City.   
      
   The researchers of the study say that Herpes virus weakens body immunity which   
   allows the virus to spread to the brain where it leads the person towards   
   dementia.   
      
   In one of the two studies, researchers followed 3,500 people for about 11   
   years and found that having certain antibodies against herpes virus doubled   
   the chances of getting Alzheimer's disease.   
      
   In another study, blood samples of 360 Alzheimer's patients were taken on   
   average 9.6 years before the disease was diagnosed in them. Then they compared   
   the samples with blood samples of healthy individuals and found no Alzheimer's   
   and herpes infection    
   relation. But when the samples of the people taken 6.6 years before were   
   analyzed, significant association was found between the both.   
      
   "I think herpes virus causes a significant proportion of all cases of AD --   
   about 40 to 50 percent -- according to our data," Lovheim said.   
      
   The journal Alzheimer's & Dementia published both studies.   
      
      
      
      
   http://www.betawired.com/two-new-studies-suggest-common-cold-sor   
   s-double-risk-of-alzheimers-disease/1410253/   
      
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