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Nutrition in Neurodegenerative Diseases: Molecular Perspectives

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Bioactives and Nutraceuticals".

Deadline for manuscript submissions: closed (30 November 2025) | Viewed by 169

Special Issue Editor


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Guest Editor
Endocrinology and Metabolism, Clinical Center Stella Maris, Strada Rovereta, 42-47891 Falciano, San Marino
Interests: nutrition; metabolism; endocrinolgy; antiaging and human performance

Special Issue Information

Dear Colleagues,

There is evidence that nutrition greatly affects neuronal physiology and predisposes to neurodegenerative disease. The role of the quality of nutrition in diets such as the Mediterranean diet is essential, but so is the quantity of food ingested. The total amount of carbohydrate ingested regulates the insulin secretion. Insulin influences cerebral bioenergetics, enhances synaptic viability and dendritic spine formation, and increases turnover of neurotransmitters, such as dopamine; insulin dysregulation could contribute to neurodegeneration.

The following are examples:

  • Phenols are a group of dietary bioactive molecules; these phytochemicals are present in high amounts in plant-based foods and beverages. They have potential benefits, presenting evidence for cognitive brain health and neuroprotection.
  • The B vitamin group, at doses in significant excess of the current governmental recommendations, may be a rational approach for preserving brain health.
  • Alpha-tocotrienol possesses unique biological activity that is independent of its potent antioxidant capacity, which demonstrates neuroprotective properties.

In this Special Issue, we are particularly interested in original research articles and comprehensive reviews that explore the potential targets through which dietary factors may influence neurodegenerative diseases. Specifically, we seek contributions that investigate these mechanisms based on the bioavailability and intestinal absorption of biomolecules. Additionally, we welcome studies that elucidate the indirect effects on neurodegeneration arising from the interplay among diet, the intestinal microbiota, intestinal permeability, the immune system, and the central nervous system.

Dr. Vittorio Emanuele Bianchi
Guest Editor

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Keywords

  • nutrition
  • neurodegenerative disease
  • phenols
  • B vitamins
  • alpha-tocotrienol
  • dietary factors
  • intestinal microbiota
  • central nervous system

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Published Papers (1 paper)

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Review

27 pages, 861 KB  
Review
Targeting the Gut Microbiota: Mechanistic Investigation of Polyphenol Modulation of the Gut–Brain Axis in Alzheimer’s Disease
by Zhenning Wang, Shanshan Ba, Man Li, Yuanyuan Wei, Yuenan Wang, Jianqin Mao, Yang Xiang, Dongdong Qin and Chuhua Zeng
Int. J. Mol. Sci. 2026, 27(2), 604; https://doi.org/10.3390/ijms27020604 - 7 Jan 2026
Abstract
Alzheimer’s disease (AD) represents an increasingly severe global health challenge. Recently, the role of the gut–brain axis in AD pathogenesis has garnered significant attention. Dysbiosis of the gut microbiota can exacerbate core pathologies such as neuroinflammation, amyloid beta (Aβ) deposition, and tau hyperphosphorylation [...] Read more.
Alzheimer’s disease (AD) represents an increasingly severe global health challenge. Recently, the role of the gut–brain axis in AD pathogenesis has garnered significant attention. Dysbiosis of the gut microbiota can exacerbate core pathologies such as neuroinflammation, amyloid beta (Aβ) deposition, and tau hyperphosphorylation through neural, endocrine, and immune pathways. Polyphenolic compounds have emerged as a focal point in neuroprotective research owing to their pronounced anti-inflammatory and antioxidant properties. Notably, polyphenols exert effects not only by directly influencing the central nervous system (CNS) but also through indirectly modulating the composition and function of the gut microbiota, thereby impacting bidirectional gut–brain communication. This dual mechanism offers a potential avenue for their application in the prevention and treatment of AD. This review aims to compile recent research on the relationship between polyphenols and the gut microbiota. We assessed the literature from PubMed, Google Scholar, and Web of Science databases, published from the establishment of the database to 24 November 2025. The keywords used include “Polyphenols”, “Gut–brain axis”, “Gut microbiota”, “Alzheimer’s disease”, “Epigallocatechin gallate”, “Quercetin”, “Curcumin”, “Ferulic acid”, “Resveratrol”, “Anthocyanin”, “Myricetin”, “Chlorogenic acid”, etc. This review discusses the various mechanisms by which polyphenols influence AD through modulating the gut microbiota. Polyphenols and gut microbiota exhibit critical bidirectional interactions. On one hand, the bioavailability and activity of polyphenols are highly dependent on metabolic conversion by gut microbiota. On the other hand, polyphenols selectively promote the proliferation of beneficial bacteria such as bifidobacteria and lactobacilli like prebiotics, while inhibiting the growth of pathogenic bacteria. This reshapes the intestinal microecology, enhances barrier function, and regulates beneficial metabolites. Utilizing a nanotechnology-based drug delivery system, the pharmacokinetic stability and brain targeting efficacy of polyphenols can be significantly enhanced, providing innovative opportunities for the targeted prevention and management of AD. Full article
(This article belongs to the Special Issue Nutrition in Neurodegenerative Diseases: Molecular Perspectives)
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