Cited by 333Gut microbiota and healthNutritional Studies and DietGastrointestinal motility and disorders

The DOI matches its Crossref record; 137 of the 137 references it cites were found in a registry or an index.

Gut to Brain Dysbiosis: Mechanisms Linking Western Diet Consumption, the Microbiome, and Cognitive Impairment

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Noble, Emily E., Hsu, Ted M., Kanoski, Scott E.·2017·Frontiers in Behavioral Neuroscience

Abstract

Consumption of a Western Diet (WD) that is high in saturated fat and added sugars negatively impacts cognitive function, particularly mnemonic processes that rely on the integrity of the hippocampus. Emerging evidence suggests that the gut microbiome influences cognitive function via the gut-brain axis, and that WD factors significantly alter the proportions of commensal bacteria in the gastrointestinal tract. Here we review mechanisms through which consuming a WD negatively impacts neurocognitive function, with a particular focus on recent evidence linking the gut microbiome with dietary- and metabolic-associated hippocampal impairment. We highlight evidence linking gut bacteria to altered intestinal permeability and blood brain barrier integrity, thus making the brain more vulnerable to the influx of deleterious substances from the circulation. WD consumption also increases production of endotoxin by commensal bacteria, which may promote neuroinflammation and cognitive dysfunction. Recent findings also show that diet-induced alterations in gut microbiota impair peripheral insulin sensitivity, which is associated with hippocampal neuronal derrangements and associated mnemonic deficits. In some cases treatment with specific probiotics or prebiotics can prevent or reverse some of the deleterious impact of WD consumption on neuropsychological outcomes, indicating that targeting the microbiome may be a successful strategy for combating dietary- and metabolic-associated cognitive impairment.

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Metadata

Authors
Noble, E. E., Hsu, T. M., & Kanoski, S. E.
Affiliations
University of Southern California (US)
Corresponding author
Kanoski, Scott E.
Venue
Frontiers in Behavioral Neuroscience
Published
2017-01-30
Volume
11
Pages
9-9
ISSN
1662-5153 (ISSN-L)
OpenAlex
W2574256641
Cited by
333
References
137
Citations by year
2026: 26 · 2025: 30 · 2024: 36 · 2023: 60 · 2022: 37 · 2021: 38 · 2020: 42 · 2019: 26 · 2018: 27 · 2017: 11
FWCI
2.71
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Behavioral Neuroscience (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Institute of Diabetes and Digestive and Kidney Diseases (DK104897)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
Western diet, gut microbiota, gut-brain axis, cognitive impairment, hippocampus, memory impairment, intestinal permeability, blood-brain barrier, endotoxin, neuroinflammation, insulin sensitivity, probiotics, prebiotics, dietary fat, added sugars

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