Research links fast food to Alzheimer’s
London: Mice fed junk food for nine months showed signs of developing the abnormal brain tangles strongly associated with Alzheimer’s disease, a Swedish researcher said on Friday.
“On examining the brains of these mice, we found a chemical change not unlike that found in the Alzheimer brain,” said Susanne Akterin of Sweden’s Karolinska Institutet, who led the study. “We now suspect that a high intake of fat and cholesterol, in combination with genetic factors, can be a contributory factor in the development of Alzheimer’s.”
Alzheimer’s disease is incurable and is the most common form of dementia among older people. It affects the regions of the brain involving thought, memory and language.
While the most advanced drugs have focused on removing clumps of beta amyloid protein that forms plaques in the brain, researchers are also now looking at therapies to address the toxic tangles caused by an abnormal build-up of the protein tau.
In her research, Akterin focused on a gene variant called apoE4, found in 15 to 20 per cent of people, and which is a known risk factor for Alzheimer’s.
She studied mice genetically-engineered to mimic the effect of the gene, and which were fed a diet rich in fat, sugar and cholesterol for nine months – meals representing the nutritional content of fast food.
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