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Is Excess Iron a Missing Piece in Alzheimer’s Puzzle?

Thirty-one people with Alzheimer's and 68 healthy control subjects participated in a study that used MRI scans to examine the hippocampus and thalamus regions of their brains. The scans showed that in the hippocampus region, the interaction of iron with amyloid proteins resulted in the protein toxicity, while the thalamus showed no such increase in iron levels or signs of tissue damage. 
 
 

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