Cited by 71Neuroinflammation and Neurodegeneration MechanismsGut microbiota and healthNeurological Disease Mechanisms and Treatments

Microbiota‐microglia connections in age‐related cognition decline

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Zhou, Rui, Qian, Shufang, Cho, William C. S., Zhou, Jinyun, Jin, Chentao, Zhong, Yan, Wang, Jing, Zhang, Xiaohui +4 more·2022·Aging Cell

Abstract

Aging is an inevitable process that all individuals experience, of which the extent differs among individuals. It has been recognized as the risk factor of neurodegenerative diseases by affecting gut microbiota compositions, microglia, and cognition abilities. Aging‐induced changes in gut microbiota compositions have a critical role in orchestrating the morphology and functions of microglia through the gut‐brain axis. Gut microbiota communicates with microglia by its secreted metabolites and neurotransmitters. This is highly associated with age‐related cognitive declines. Here, we review the main composition of microbiota in the aged individuals, outline the changes of the brain in age‐related cognitive decline from a neuroinflammation perspective, especially the changes of morphology and functions of microglia, discuss the crosstalk between microbiota and microglia in the aged brain and further highlight the role of microbiota‐microglia connections in neurodegenerative diseases (Alzheimer's disease and Parkinson's disease).

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  • The microbiota-gut-brain axis represents an important regulator of glial functions, making it an actionable target to ameliorate the development and progression of neurodegenerative diseases.

    “The microbiota–gut–brain axis represents an important regulator of glial functions, making it an actionable target to ameliorate the development and progression of neurodegenerative diseases.”
  • Throughout the host lifespan, the gut microbiome provides essential signals to microglia during health and disease.

    “Throughout the host lifespan, the gut microbiome provides essential signals to microglia during health and disease.59,60,187,188”

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Authors
Zhou, R., Qian, S., Cho, W. C. S., Zhou, J., Jin, C., Zhong, Y., Wang, J., Zhang, X., Xu, Z., Tian, M., Chan, L. W. C., & Zhang, H.
Affiliations
  • Hong Kong Polytechnic University (HK)
  • Second Affiliated Hospital of Zhejiang University (CN)
  • Queen Elizabeth Hospital (CN)
Corresponding author
  • Tian, Mei
  • Chan, Lawrence W. C.
  • Zhang, Hong
Venue
Aging Cell
Publisher
Wiley
Published
2022-03-29
Volume
21
Issue
5
Pages
e13599-e13599
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W4221067042
Cited by
71
References
209
Citations by year
2026: 13 · 2025: 20 · 2024: 13 · 2023: 20 · 2022: 5
FWCI
1.49
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81725009, 21788102, 82030049)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
gut microbiota, microglia, age-related cognitive decline, gut-brain axis, neuroinflammation, neurodegenerative diseases, Alzheimer's disease, Parkinson's disease, brain aging, microbial metabolites, neurotransmitters
MeSH terms
Aged, Brain, Cognition, Humans, Microglia, Neurodegenerative Diseases, Cognitive Dysfunction, Microbiota

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