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Updated: May 17, 2025

Investigating Intestinal Barrier Breakdown in Living Organoids
Published on: March 26, 2020
Intestinal barrier damage caused by addictive substance use disorder.
Yan Gao1, Deshenyue Kong1,2, Jia-Xue Sun1,2
1Yunnan Technological Innovation Centre of Drug Addiction Medicine, Yunnan University, Kunming, 650504, China.
Addictive substance use disorder damages the intestinal barrier, impacting the gut-brain axis and potentially worsening addiction. Targeting gut health may help alleviate withdrawal symptoms and dependence.
Area of Science:
- Neuroscience
- Gastroenterology
- Addiction Research
Background:
- Addictive substance use disorder (ASUD) significantly impacts the intestinal barrier.
- Damage to biological, chemical, mechanical, and immune intestinal barriers allows systemic inflammation and immune dysregulation.
Purpose of the Study:
- To review the effects of ASUD on the intestinal barrier.
- To explore therapeutic strategies targeting gut barrier damage for addiction treatment.
Main Methods:
- Review of existing literature on ASUD, intestinal barrier function, and the gut-brain axis.
- Analysis of the mechanisms linking gut dysbiosis to neurological and behavioral changes in addiction.
Main Results:
- ASUD-induced gut barrier damage facilitates translocation of harmful substances, triggering systemic inflammation.
- Gut barrier dysfunction contributes to dysbiosis, affecting the gut-brain axis and exacerbating addiction-related symptoms.
- Altered gut microbiota composition is linked to mood changes, cognitive deficits, and increased cravings.
Conclusions:
- Reshaping the gut-brain axis and modulating gut microbiota show potential for managing ASUD.
- Treating intestinal barrier damage may offer a novel therapeutic avenue for addiction dependence and withdrawal symptoms.
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