Study adds new evidence on the link between Type 2 diabetes and Alzheimer's disease

Mar 25 2024American Society for Biochemistry and Molecular Biology New research conducted in mice offers insights into what's going on at the molecular level that could cause people with diabetes to develop Alzheimer's disease.

Diabetes and Alzheimer's are two of the fastest-growing health concerns worldwide. Diabetes alters the body's ability to turn food into energy and affects an estimated 1 in 10 U.S. adults. Alzheimer's, a form of dementia that causes progressive decline in memory and thinking skills, is among the top 10 leading causes of death in the United States.

They found that a high-fat diet suppresses the expression of the protein, called Jak3, and that mice without this protein experienced a cascade of inflammation starting with the intestine, moving through the liver and on to the brain. Ultimately, the mice showed signs of Alzheimer's-like symptoms in the brain, including an overexpressed mouse beta-amyloid and hyperphosphorylated tau, as well as evidence of cognitive impairment.

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