Giúlia Jäger Maximowicz de Oliveira
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Camila Luisa Roda Cichacewski
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Carolina Fantin Carneiro
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Leticia Fuganti Campos
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Antônio Carlos Ligocki Campos
Introduction: Alzheimer’s disease (AD) is characterized by a progressive and persistent deterioration of the whole cognitive function, which results in an impaired cortical function. Some years
ago, the connection between AD and type 2 diabetes has been studied, resulting in the term type
3 diabetes (T3D). Methods: This is a literature review, a search for articles published in the last
5 years in the Medline and PubMed databases was performed, using the descriptor: Alzheimer
disease, diabetes, insulin resistance. Results: For analysis, 12 articles were selected, with 10
literature reviews and 2 original studies. Among those who explored the cellular and molecular
relationship between AD and insulin resistance, possible pathogenic mechanisms, the role of insulin
in the brain, environmental factors linked to AD and dietary interventions to prevent neurodegeneration. Conclusion: The relation between AD and type 2 diabetes is due several mechanisms
such as lipid metabolism, insulin metabolism and agents related to its functioning, like the ApoEε4,
C-peptide, the glycogen synthase kinase 3β (GSK-3β) and the amyloid-beta (Aβ). It is suggested
that several changes, mainly in insulin metabolism, can impair neurocognitive function and trigger
AD. Future studies are needed to analyze the context of T3D and find possible treatments that
attenuate the AD progression and promote quality of life for the patients.
Potential role of glycogen synthase kinase-3 in skeletal muscle insulin resistance of type 2 diabetes
