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Cited by 377

The DOI matches its Crossref record; 192 of the 192 references it cites were found in a registry or an index.

Insulin and Insulin Resistance in Alzheimer’s Disease

Open access
Sędzikowska, Aleksandra, Szablewski, Leszek·2021·International Journal of Molecular Sciences

Abstract

Insulin plays a range of roles as an anabolic hormone in peripheral tissues. It regulates glucose metabolism, stimulates glucose transport into cells and suppresses hepatic glucose production. Insulin influences cell growth, differentiation and protein synthesis, and inhibits catabolic processes such as glycolysis, lipolysis and proteolysis. Insulin and insulin-like growth factor-1 receptors are expressed on all cell types in the central nervous system. Widespread distribution in the brain confirms that insulin signaling plays important and diverse roles in this organ. Insulin is known to regulate glucose metabolism, support cognition, enhance the outgrowth of neurons, modulate the release and uptake of catecholamine, and regulate the expression and localization of gamma-aminobutyric acid (GABA). Insulin is also able to freely cross the blood–brain barrier from the circulation. In addition, changes in insulin signaling, caused inter alia insulin resistance, may accelerate brain aging, and affect plasticity and possibly neurodegeneration. There are two significant insulin signal transduction pathways: the PBK/AKT pathway which is responsible for metabolic effects, and the MAPK pathway which influences cell growth, survival and gene expression. The aim of this study is to describe the role played by insulin in the CNS, in both healthy people and those with pathologies such as insulin resistance and Alzheimer’s disease.

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Metadata

Authors
Sędzikowska, A., & Szablewski, L.
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2021-09-15
Volume
22
Issue
18
Pages
9987
ISSN
1422-0067 (ISSN-L)
OpenAlex
W3200557486
Cited by
377
References
192
FWCI
27.15
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Insulin and Insulin Resistance in Alzheimer’s Disease. https://app.cochat.ai/papers/10.3390/ijms22189987
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Sędzikowska, A., & Szablewski, L. (2021). Insulin and Insulin Resistance in Alzheimer’s Disease. International Journal of Molecular Sciences. https://doi.org/10.3390/ijms22189987

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