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The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such as...
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Related Experiment Video

Updated: Jun 9, 2026

Live Imaging and Characterization of Microglia Dynamics in the Zebrafish Embryo
07:45

Live Imaging and Characterization of Microglia Dynamics in the Zebrafish Embryo

Published on: May 17, 2024

Microglia in the developing brain: from immunity to behaviour.

Timm Schlegelmilch1, Katrin Henke, Francesca Peri

  • 1European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.

Current Opinion in Neurobiology
|September 7, 2010
PubMed
Summary
This summary is machine-generated.

Microglia, the brain's immune cells, are crucial for healthy brain function and development. Understanding their roles in a healthy brain opens new avenues for treating neuropsychiatric diseases.

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Area of Science:

  • Neuroscience
  • Immunology
  • Cell Biology

Background:

  • Microglia, the brain's resident macrophages, are traditionally linked to brain pathologies.
  • Emerging evidence highlights their essential roles in the healthy brain.
  • Microglial functions are critical from early development through adulthood.

Purpose of the Study:

  • To explore the indispensable functions of microglia in the healthy brain.
  • To investigate the novel roles of microglia in higher-order brain functions and behavior.
  • To establish the therapeutic potential of understanding microglial physiology for neuropsychiatric disorders.

Main Methods:

  • Review of existing literature on microglial function.
  • Analysis of studies detailing microglial roles during development and in physiological conditions.
  • Synthesis of evidence linking microglial activity to cognitive and behavioral outcomes.

Main Results:

  • Microglia perform essential functions during brain development, including apoptotic neuronal clearance.
  • Beyond classical roles, microglia are increasingly recognized for influencing higher cognitive functions.
  • These cells play a significant role in modulating behavior.

Conclusions:

  • Microglia are vital for maintaining brain health and function throughout life.
  • Understanding microglia in physiological states offers new therapeutic targets for neuropsychiatric diseases.
  • Further research into microglial roles can revolutionize the prevention and treatment of brain disorders.