Two recent studies show blood-sugar levels can affect the brain—-adding new evidence that diabetes might be a significant risk factor for developing Alzheimer’s disease and other forms of dementia. Researchers at Washington University in St. Louis found in a study of mice that raising blood sugar to abnormally high levels corresponded with increased production in the brain of amyloid beta, a protein thought to be an important factor in Alzheimer’s disease. In a separate study of middle-aged people, conducted at the University of Pittsburgh, those with Type 1 diabetes had significantly more brain lesions, and slower cognitive function, than people without the disease.
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Source: By JOSEPH WALKER (WSJ)