Effects of Oat Fiber Intervention on Cognitive Behavior in LDLR–/– Mice Modeling Atherosclerosis by Targeting the Microbiome–Gut–Brain Axis
Abstract
It is known that cardiovascular disease can result in cognitive impairment. However, whether oat fiber improves cognitive behavior through a cardiovascular-related mechanism remains unclear. The present work was aimed to elucidate the potential of oat fiber on cognitive behavior by targeting the neuroinflammation signal and microbiome-gut-brain axis in a mouse model of atherosclerosis. Male low-density lipoprotein receptor knock-out (LDLR -/- ) mice were treated with a high fat/cholesterol diet without or with 0.8% oat fiber for 14 weeks. Behavioral tests indicated that LDLR -/- mice exhibited a significant cognitive impairment; however, oat fiber can improve cognitive behavior by reducing latency to the platform and increasing the number of crossing and swimming distance in the target quadrant. Oat fiber can inhibit A β plaque processing in both the cortex and hippocampus via decreasing the relative protein expression of GFAP and IBα1. Notably, oat fiber inhibited the nod-like receptor family pyrin domain-containing 3 inflammasome activation and blocked the toll-like receptor 4 signal pathway in both the cortex and hippocampus, accompanied by a reduction of circulating serum lipopolysaccharide. In addition, oat fiber raised the expressions of short-chain fatty acid (SCFA) receptors and tight junction proteins (zonula occludens-1 and occludin) and improved intestinal microbiota diversity via increasing the contents of gut metabolites SCFAs. In summary, the present study provi…
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Reduced SCFAs in sepsis may shift microglia toward a pro-inflammatory phenotype, worsening neural injury.
“Reduced SCFAs in sepsis may shift microglia toward a pro-inflammatory phenotype, worsening neural injury (Gao et al., 2020; Liu et al., 2020).”
From Progress on the correlation between sepsis and gut microbiota: a narrative review (2026) · cites this paper as Gao et al., 2020
Cites
The Role of Short-Chain Fatty Acids From Gut Microbiota in Gut-Brain Communication
Silva, Y. P., Bernardi, A., & Frozza, R. L. (2020) · Frontiers in Endocrinology · doi:10.3389/fendo.2020.00025 · Cited by 3,043 · see citing works
Principles and clinical implications of the brain-gut-enteric microbiota axis
Rhee, S. H., Pothoulakis, C., & Mayer, E. A. (2009) · Nature Reviews Gastroenterology & Hepatology · doi:10.1038/nrgastro.2009.35 · Cited by 1,342 · see citing works
Microbial genes, brain & behaviour – epigenetic regulation of the gut–brain axis
Stilling, R. M., Dinan, T. G., & Cryan, J. F. (2014) · Genes, Brain and Behavior · doi:10.1111/gbb.12109 · Cited by 637 · see citing works
Noble, E. E., Hsu, T. M., & Kanoski, S. E. (2017) · Frontiers in Behavioral Neuroscience · doi:10.3389/fnbeh.2017.00009 · Cited by 333 · see citing works
Kanekiyo, T., & Bu, G. (2014) · Frontiers in Aging Neuroscience · doi:10.3389/fnagi.2014.00093 · Cited by 281 · see citing works
β-glucan attenuates cognitive impairment via the gut-brain axis in diet-induced obese mice
Shi, H., Yu, Y., Lin, D., Zheng, P., Zhang, P., Hu, M., Wang, Q., Pan, W., Yang, X., Hu, T., et al. (2020) · Microbiome · doi:10.1186/s40168-020-00920-y · Cited by 264 · see citing works
Neuroinflammation and Cognitive Aging
Ownby, R. L. (2010) · Current Psychiatry Reports · doi:10.1007/s11920-009-0082-1 · Cited by 212 · see citing works
Gut microbiota interacts with brain microstructure and function
Fernandez-Real, J.-M., Serino, M., Blasco, G., Puig, J., Daunis-i-Estadella, J., Ricart, W., Burcelin, R., Fernández-Aranda, F., & Portero-Otin, M. (2015) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2015-3076 · Cited by 167 · see citing works
Acetate reduces microglia inflammatory signaling <i>in vitro</i>
Soliman, M. L., Puig, K. L., Combs, C. K., & Rosenberger, T. A. (2012) · Journal of Neurochemistry · doi:10.1111/j.1471-4159.2012.07955.x · Cited by 131 · see citing works
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Progress on the correlation between sepsis and gut microbiota: a narrative review
Yuan, Y., Li, J., & Yang, C. (2026) · Frontiers in microbiology · doi:10.3389/fmicb.2026.1862891 · Cited by 1 · see citing works
“Reduced SCFAs in sepsis may shift microglia toward a pro-inflammatory phenotype, worsening neural injury (Gao et al., 2020; Liu et al., 2020).”
- Authors
- Gao, H., Song, R., Li, Y., Zhang, W., Wan, Z., Wang, Y., Zhang, H., & Han, S.
- Affiliations
- Soochow University (CN)
- Independent Scientist, Irving, Texas 75039, United States
- Southeast University (CN)
- Corresponding author
- Zhang, Hong
- Han, Shufen
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-11-25
- Volume
- 68
- Issue
- 49
- Pages
- 14480-14491
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W3109651320
- Cited by
- 38
- References
- 9
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 6 · 2023: 9 · 2022: 9 · 2021: 5
- FWCI
- 1.87
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Journal of Agricultural and Food Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Chinese Nutrition Society Nutrition Research Foundation (2016097B-3)
- Suzhou City (SYS2018022)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
- Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Keywords
- oat fiber, cognitive impairment, atherosclerosis, Ldlr knockout mice, microbiome-gut-brain axis, neuroinflammation, amyloid plaques, NLRP3 inflammasome, TLR4, lipopolysaccharide, short-chain fatty acids, intestinal permeability, tight junction proteins, dietary fiber, Alzheimer's disease
- MeSH terms
- Gastrointestinal Microbiome, Animals, Bacteria, Behavior, Animal, Brain, Cognition, Dietary Fiber, Fatty Acids, Volatile, Glial Fibrillary Acidic Protein, Male, Mice, Inbred C57BL, Receptors, LDL, Mice, Knockout, Avena, Atherosclerosis, Toll-Like Receptor 4, Mice
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