Did you know that Alzheimer’s and diabetes are linked? Patients with diabetes have an increased risk for Alzheimer’s disease (AD) and patients with AD show impaired insulin function and glucose metabolism. The tau protein might be one of the connecting factors. This protein, found in neurons, can get hyperphosphorylated, causing it to tangle and ‘clog up’ the neuron - one of the pathological hallmarks of AD.
Investigating tau as the possible link between AD and diabetes
Serena Abbondante and her colleagues (The American Journal of Pathology, 2014) investigated the protein tau as a possible link between the two diseases, because according to them, recent evidence from animal models of diabetes shows that impaired insulin signaling causes tau hyperphosphorylation.