RHEA, Elizabeth M.; LECLERC, Manon; YASSINE, Hussein N.; CAPUANO, Ana W.; TONG, Han; PETYUK, Vladislav A.; MACAULEY, Shannon L.; FIORAMONTI, Xavier; CARMICHAEL, Owen; CALON, Frederic; ARVANITAKIS, Zoe

doi:10.14336/ad.2023.0814

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Aging and disease. 2023-01-01p. 0

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Type 2 diabetes mellitus (T2DM) is common and increasing in prevalence worldwide, with devastating public health consequences. While peripheral insulin resistance is a key feature of most forms of T2DM and has been investigated for over a century, research on brain insulin resistance (BIR) has more recently been developed, including in the context of T2DM and non-diabetes states. Recent data support the presence of BIR in the aging brain, even in non-diabetes states, and found that BIR may be a feature in Alzheimer's disease (AD) and contributes to cognitive impairment. Further, therapies used to treat T2DM are now being investigated in the context of AD treatment and prevention, including insulin. In this review, we offer a definition of BIR, and present evidence for BIR in AD; we discuss the expression, function, and activation of the insulin receptor (INSR) in the brain; how BIR could develop; tools to study BIR; how BIR correlates with current AD hallmarks; and regional/cellular involvement of BIR. We close with a discussion on resilience to both BIR and AD, how current tools can be improved to better understand BIR, and future avenues for research. Overall, this review and position paper highlights BIR as a plausible therapeutic target for the prevention of cognitive decline and dementia due to AD< Réduire

Mots clés en anglais

Brain insulin resistance

Alzheimer's disease

Type-2 diabetes mellitus

Insulin receptor

Cognition

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https://oskar-bordeaux.fr/handle/20.500.12278/201194

DOI

http://dx.doi.org/10.14336/ad.2023.0814

Unités de recherche

NutriNeuro (Laboratoire de Nutrition et Neurobiologie Intégrée) - UMR 1286

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State of the Science on Brain Insulin Resistance and Cognitive Decline Due to Alzheimer’s Disease

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