Cited by 233Fatty Acid Research and HealthNeurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology Research

Improved spatial learning performance of fat-1 mice is associated with enhanced neurogenesis and neuritogenesis by docosahexaenoic acid

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He, Chengwei, Qu, Xiying, Cui, Libin, Wang, Jingdong, Kang, Jing X.·2009·Proceedings of the National Academy of Sciences

Abstract

Docosahexaenoic acid (DHA), an n-3 long chain polyunsaturated fatty acid (LC-PUFA), highly enriched in the central nervous system, is critical for brain development and function. It has been shown that DHA deficiency impairs cognitive performance whereas DHA supplementation improves the condition. However, the mechanisms underlying the role of DHA in brain development and function remain to be elucidated. By using transgenic fat-1 mice rich in endogenous n-3 PUFA, we show that increased brain DHA significantly enhances hippocampal neurogenesis shown by an increased number of proliferating neurons and neuritogenesis, evidenced by increased density of dendritic spines of CA1 pyramidal neurons in the hippocampus. Concurrently, fat-1 mice exhibit a better spatial learning performance in the Morris water maze compared with control WT littermates. In vitro experiments further demonstrate that DHA promotes differentiation and neurite outgrowth of neuronal cells derived from mouse ES cells and increases the proliferation of cells undergoing differentiation into neuronal lineages from the ES cells. These results together provide direct evidence for a promoting effect of DHA on neurogenesis and neuritogenesis and suggest that this effect may be a mechanism underlying its beneficial effect on behavioral performance.

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Authors
He, C., Qu, X., Cui, L., Wang, J., & Kang, J. X.
Affiliations
  • Harvard University (US)
  • Department of Medicine and
Corresponding author
Kang, Jing X.
Venue
Proceedings of the National Academy of Sciences
Published
2009-07-07
Volume
106
Issue
27
Pages
11370-11375
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2022932258
Cited by
233
References
40
Citations by year
2026: 6 · 2025: 9 · 2024: 5 · 2023: 8 · 2022: 10 · 2021: 14 · 2020: 13 · 2019: 17 · 2018: 15 · 2017: 9 · 2016: 27 · 2015: 14 · 2014: 19 · 2013: 20 · 2012: 12
FWCI
14.84
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (CA-113605, R01CA113605)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK040561)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
docosahexaenoic acid, fat-1 mice, omega-3 fatty acids, hippocampal neurogenesis, neurite outgrowth, spatial learning, dendritic spines, CA1 pyramidal neurons, neuronal differentiation, embryonic stem cells, cognitive function
MeSH terms
Animals, Cell Differentiation, Docosahexaenoic Acids, Fatty Acids, Hippocampus, Learning, Mice, Mutant Strains, Mice, Transgenic, Spatial Behavior, Neurites, Maze Learning, Dietary Supplements, Cell Proliferation, Dendritic Spines, Mice, Embryonic Stem Cells, Neurogenesis

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