Cited by 218Fatty Acid Research and HealthAlzheimer's disease research and treatmentsDementia and Cognitive Impairment Research

Omega-3 Fatty Acids and Neurodegenerative Diseases: New Evidence in Clinical Trials

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Avallone, Rossella, Vitale, Giovanni, Bertolotti, Marco·2019·International Journal of Molecular Sciences

Published version of a preprint

Abstract

A nutritional approach could be a promising strategy to prevent or slow the progression of neurodegenerative diseases such as Parkinson’s and Alzheimer’s disease, since there is no effective therapy for these diseases so far. The beneficial effects of omega-3 fatty acids are now well established by a plethora of studies through their involvement in multiple biochemical functions, including synthesis of anti-inflammatory mediators, cell membrane fluidity, intracellular signaling, and gene expression. This systematic review will consider epidemiological studies and clinical trials that assessed the impact of supplementation or dietary intake of omega-3 polyunsaturated fatty acids on neurodegenerative diseases such as Parkinson’s and Alzheimer’s diseases. Indeed, treatment with omega-3 fatty acids, being safe and well tolerated, represents a valuable and biologically plausible tool in the management of neurodegenerative diseases in their early stages.

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  • The protective effects exerted by n-3 LCPUFAs are likely to be modulated by patient-related factors, some of which may have a significant genetic component and may be unmodifiable, and may be unpredictable via routine clinical and biochemical evaluation.

    “Avallone and colleagues [90] stated that the protective effects exerted by n-3 LCPUFAs are likely to be modulated by patient-related factors, some of which may have a significant genetic component and may, therefore, be unmodifiable, and furthermore, may be unpredictable via routine clinical and biochemical evaluation.”
  • Inconsistent results are not unusual in clinical research between observational and randomized studies, particularly when investigating treatments with dietary supplements or integrators.

    “The authors highlighted that inconsistent results are not unusual in clinical research between observational and randomized studies, particularly when investigating treatments with dietary supplements or integrators.”
  • n-3 LCPUFA supplementation may be a valuable and biologically plausible tool in the management of neurodegenerative diseases.

    “Therefore, Avallone and colleagues [90] concluded n-3 LCPUFA supplementation may indeed be a valuable and biologically plausible tool in the management of neurodegenerative diseases.”
  • A recent systematic review reported an inconsistency between evidence from prospective observational studies and randomized trials on the effects of n-3 LCPUFA supplementation on cognitive function in patients with Parkinson's disease or Alzheimer's disease.

    “A recent systematic review on the effects of n-3 LCPUFA supplementation on cognitive function in patients with PD or AD also reported an inconsistency between the evidence from prospective observational studies and randomized trials, and the authors suggested some potential reasons for the inconsistency [90].”

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Authors
Avallone, R., Vitale, G., & Bertolotti, M.
Affiliations
University of Modena and Reggio Emilia (IT)
Corresponding author
Avallone, Rossella
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2019-08-30
Volume
20
Issue
17
Pages
4256
ISSN
1422-0067 (ISSN-L)
OpenAlex
W2963446643
Cited by
218
References
83
Citations by year
2026: 14 · 2025: 43 · 2024: 35 · 2023: 29 · 2022: 37 · 2021: 31 · 2020: 28 · 2019: 1
FWCI
3.30
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • Preprints.org (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Fondazione Cassa di Risparmio di Modena (2018.0334)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
omega-3 fatty acids, neurodegenerative diseases, Parkinson's disease, Alzheimer's disease, dietary supplementation, polyunsaturated fatty acids, anti-inflammatory mediators, cell membrane fluidity, intracellular signaling, gene expression, disease prevention
MeSH terms
Clinical Trials as Topic, Humans, Fatty Acids, Omega-3, Neurodegenerative Diseases, Observational Studies as Topic

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