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Home/Featured/Has Stanford University Found A Cure For Alzheimer’s Disease?

Has Stanford University Found A Cure For Alzheimer’s Disease?

A drug which boosts the brain's immune response may prevent or cure Alzheimer's disease, scientists believe

Written by Sarah Knapton, The Telegraph Science Editor | Saturday, January 3, 2015

Microglial cells make up around 10 to 15 per cent of cells in the brain. They act as a frontline defence, looking for suspicious activities and materials. When they spot trouble, they release substances that recruit other microglia to the scene which then destroy and get rid of any foreign invaders…“The microglia are supposed to be, from the get-go, constantly clearing amyloid-beta, as well as keeping a lid on inflammation,” added Dr Andreasson. “If they lose their ability to function, things get out of control. A-beta builds up in the brain, inducing toxic inflammation.”

 

Alzheimer’s could be prevented and even cured by boosting the brain’s own immune response, scientists at Stanford University believe.

Researchers discovered that nerve cells die because cells which are supposed to clear the brain of bacteria, viruses and dangerous deposits, stop working.

These cells, called ‘microglia’ function well when people are young, but when they age, a single protein called EP2 stops them operating efficiently.

Now scientists have shown that blocking the protein allows the microglia to function normally again so they can hoover up the dangerous sticky amyloid-beta plaques which damage nerve cells in Alzheimer’s disease.

The researchers found that, in mice, blocking EP2 with a drug reversed memory loss and myriad other Alzheimer’s-like features in the animals.

“Microglia are the brain’s beat cops,” said Dr Katrin Andreasson, Professor of neurology and neurological sciences at Stanford University School of Medicine.

“Our experiments show that keeping them on the right track counters memory loss and preserves healthy brain physiology.”

By 2015 there will be 850,000 people with dementia in the UK, with Alzheimer’s disease being the most common type. The disease kills at least 60,000 people each year….

The study was published in the Journal of Clinical Investigation.

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