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Bromelain Alleviates Sleep Deprivation-Induced Intestinal Injury via TRPA1/5-HT Axis
Hai-Yi Zhang1,2,3, Yan Li1,2,3, Wen-Hao Wang1,2,3
1State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou 510642, China.
Sleep deprivation causes intestinal damage via hypoxia. Bromelain (BR) mitigates this by reducing 5-HT, a key mediator, offering a new therapeutic target for sleep-related gut issues.
Area of Science:
- Gastroenterology
- Sleep Medicine
- Pharmacology
Background:
- Sleep deprivation (SD) disrupts intestinal homeostasis, leading to damage.
- Previous work linked SD-induced intestinal damage to hypoxia and ischemia.
Purpose of the Study:
- Investigate bromelain's (BR) protective effects against SD-induced intestinal damage.
- Elucidate the underlying mechanisms involving 5-HT and TRPA1.
Main Methods:
- Assessed BR's impact on SD-induced intestinal damage, blood perfusion, and clotting.
- Identified 5-HT as a mediator and investigated BR's effect on 5-HT levels.
- Examined BR's inhibition of TRPA1-mediated calcium influx in Enterochromaffin (EC) cells.
Main Results:
- Bromelain mitigated SD-induced intestinal damage.
- BR restored intestinal blood perfusion and clotting function.
- BR reduced 5-HT levels by inhibiting TRPA1-mediated calcium influx in EC cells.
Conclusions:
- The TRPA1-5-HT axis is a novel therapeutic target for sleep disorder-related gastrointestinal pathologies.
- Bromelain's therapeutic potential extends to direct modulation of 5-HT via TRPA1 inhibition.
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