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Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
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Related Experiment Video

Updated: Sep 27, 2025

Reducing State Anxiety Using Working Memory Maintenance
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Trust your gut, lest thou be anxious.

Yunjin Lee1, Jun R Huh2

  • 1Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.

Cell
|April 15, 2022
PubMed
Summary

Gut bacteria can influence mood and anxiety. Targeting specific bacteria and their metabolites may reduce anxiety-like behaviors and help mitigate anxiety in autistic patients.

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Area of Science:

  • Microbiology
  • Neuroscience
  • Psychiatry

Background:

  • The gut microbiome plays a role in the gut-brain axis.
  • Emerging evidence suggests a link between gut bacteria and mood disorders like anxiety.

Purpose of the Study:

  • To investigate if gut bacteria can influence anxiety-like behaviors.
  • To explore if targeting bacteria-produced metabolites can reduce anxiety.

Main Methods:

  • Identification of specific bacteria associated with anxiety-like behaviors in mouse models.
  • Analysis of bacteria-produced metabolites.
  • Exploration of mitigation strategies for anxiety in autistic patients.

Main Results:

  • Specific gut bacteria were identified that enhance anxiety-like behaviors in mice.
  • Potential therapeutic strategies targeting these bacteria or their metabolites were explored.
  • Findings suggest a pathway to mitigate anxiety in autistic patients.

Conclusions:

  • Gut bacteria significantly influence mood and anxiety.
  • Targeting the gut microbiome offers a promising therapeutic avenue for anxiety disorders and related conditions.