Microbiome–Gut–Brain Axis: Implications for the Links Between Inflammatory Bowel Disease and Neuropsychiatric Disorders

Sep 29, 2025Journal of inflammation research

How Gut Bacteria May Connect Inflammatory Bowel Disease and Brain Disorders

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Abstract

Dysregulation of in activates the gut immune system.

  • The gut and brain are interconnected, processing signals from both the environment and internal cues.
  • Activation of the gut immune system is associated with dysregulation of gut microbiota in inflammatory bowel disease.
  • The may play a role in the development of neuropsychiatric disorders such as autism, depression, and anxiety.
  • Molecular mechanisms involved in gut-brain signaling include immune responses, neuroendocrine factors, and microbial composition.
  • Specific inflammatory bowel disease is linked to certain microbial genera and various psychiatric and neurological disorders.
  • Targeting gut microbiota could potentially offer new treatment approaches for neuropsychiatric disorders influenced by gut interactions.

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Key numbers

50%
Prevalence of Anxiety Symptoms
Among patients with active .
33%
Prevalence of Depression Symptoms
In the same patient population with .
40–60%
Clinical Remission Rates
For clinical remission in patients with .

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