Dietary Protection against Cognitive Impairment, Neuroinflammation and Oxidative Stress in Alzheimer’s Disease Animal Models of Lipopolysaccharide-Induced Inflammation

Author:

Decandia Davide12ORCID,Gelfo Francesca13ORCID,Landolfo Eugenia1ORCID,Balsamo Francesca13,Petrosini Laura1ORCID,Cutuli Debora12

Affiliation:

1. IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, Italy

2. Department of Psychology, Sapienza University of Rome, Via dei Marsi 78, 00185 Rome, Italy

3. Department of Human Sciences, Guglielmo Marconi University, Via Plinio 44, 00193 Rome, Italy

Abstract

Alzheimer’s disease (AD) is a rapidly growing epidemic with a heavy social and economic burden. Evidence suggests that systemic inflammation, dysregulation of the immune response and the resulting neuroinflammation and neurodegeneration play a significant role in AD pathogenesis. Currently, given that there is no fully convincing cure for AD, the interest in lifestyle factors (such as diet), which potentially delay onset and reduce the severity of symptoms, is increasing. This review is aimed at summarizing the effects of dietary supplementation on cognitive decline, neuroinflammation and oxidative stress in AD-like animal models with a focus on neuroinflammation induced by lipopolysaccharide (LPS) injection, which mimics systemic inflammation in animals. The compounds reviewed include curcumin, krill oil, chicoric acid, plasmalogens, lycopene, tryptophan-related dipeptides, hesperetin and selenium peptides. Despite the heterogeneity of these compounds, there is a strong consensus on their counteracting action on LPS-induced cognitive deficits and neuroinflammatory responses in rodents by modulating cell-signaling processes, such as the NF-κB pathway. Overall, dietary interventions could represent an important resource to oppose AD due to their influence in neuroprotection and immune regulation.

Funder

ITALIAN MINISTRY OF HEALTH, Young Researcher

Ricerca Finalizzata

Ricerca Corrente

Publisher

MDPI AG

Subject

Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis

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