Cited by 140Phytochemicals and Antioxidant ActivitiesDementia and Cognitive Impairment ResearchMedicinal Plants and Neuroprotection

Polyphenols and neuroprotection: therapeutic implications for cognitive decline

Caruso, Giuseppe, Torrisi, Sebastiano A., Mogavero, Maria Paola, Currenti, Walter, Castellano, Sabrina, Godos, Justyna, Ferri, Raffaele, Galvano, Fabio +3 more·2022·Pharmacology & Therapeutics

Abstract

Dietary polyphenols have been the focus of major interest for their potential benefits on human health. Several preclinical studies have been conducted to provide a rationale for their potential use as therapeutic agents in preventing or ameliorating cognitive decline. However, results from human studies are scarce and poorly documented. The aim of this review was to discuss the potential mechanisms involved in age-related cognitive decline or early stage cognitive impairment and current evidence from clinical human studies conducted on polyphenols and the aforementioned outcomes. The evidence published so far is encouraging but contrasting findings are to be taken into account. Most studies on anthocyanins showed a consistent positive effect on various cognitive aspects related to aging or early stages of cognitive impairment. Studies on cocoa flavanols, resveratrol, and isoflavones provided substantial contrasting results and further research is needed to clarify the therapeutic potential of these compounds. Results from other studies on quercetin, green tea flavanols, hydroxycinnamic acids (such as chlorogenic acid), curcumin, and olive oil tyrosol and derivatives are rather promising but still too few to provide any real conclusions. Future translational studies are needed to address issues related to dosage, optimal formulations to improve bioavailability, as well as better control for the overall diet, and correct target population.

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Crossref · 10.1016/j.pharmthera.2021.108013

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322 of 322 references verified0 citation errors · 0 not checkable

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Authors
Caruso, G., Torrisi, S. A., Mogavero, M. P., Currenti, W., Castellano, S., Godos, J., Ferri, R., Galvano, F., Leggio, G. M., Grosso, G., & Caraci, F.
Affiliations
  • University of Catania (IT)
  • Istituti Clinici Scientifici Maugeri (IT)
  • I.R.C.C.S. Oasi Maria SS (IT)
Corresponding author
Grosso, Giuseppe
Venue
Pharmacology & Therapeutics
Publisher
Elsevier BV
Published
2022-04
Volume
232
Pages
108013
ISSN
0163-7258 (ISSN-L)
OpenAlex
W3204234964
Cited by
140
References
325
Citations by year
2026: 19 · 2025: 29 · 2024: 27 · 2023: 35 · 2022: 28 · 2021: 2
FWCI
2.08
Type
journal article
Language
en
Open access
closed
Locations
  • Pharmacology & Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of Catania
Topics
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
Keywords
dietary polyphenols, neuroprotection, cognitive decline, age-related cognitive impairment, anthocyanins, cocoa flavanols, resveratrol, isoflavones, quercetin, hydroxycinnamic acids, chlorogenic acid, curcumin, bioavailability, cognitive aging
MeSH terms
Neuroprotection, Anthocyanins, Humans, Tea, Polyphenols, Cognitive Dysfunction

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