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beta-amyloid
(redirected from Amyloid beta)

   Also found in: Wikipedia 0.01 sec.
beta-amyloid
A4, β—amyloid Neurology A 4 kD polypeptide encoded on chromosome 21 arising from altered processing of amyloid precursor protein, an integral membrane glycoprotein secreted as a truncated carboxyl-terminal molecule; BA forms plaques in the brains of Pts with Alzheimer's disease–AD, Down syndrome, infectious encephalopathy, cerebral amyloid angiopathy; BA is found in skin, intestine, adrenal gland. See Alzheimer's disease, Amyloid, Presenilin. Cf Alpha2-macroglobulin.


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Byline: ANI Washington, Nov 12 (ANI): Scientists have identified a novel mouse gene (Rps23r1) that reduces the accumulation of two toxic proteins that are major players in Alzheimer's disease: amyloid beta and tau.
Researchers monitored levels of amyloid beta, a protein fragment known to be linked to Alzheimer's, in the brains of mice with symptoms of the disease.
They found that preventing the mice from sleeping caused a 25% increase in amyloid beta levels.
 
 
 
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