首页|色氨酸代谢调控肠道应激损伤作用的研究进展

色氨酸代谢调控肠道应激损伤作用的研究进展

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肠道是动物体内最大的免疫器官,也是机体主要的消化、吸收、代谢场所,维持肠道稳态健康是维护动物机体健康的重要保障。研究表明应激易使肠屏障受损、通透性增加、肠道功能紊乱,引发肠道应激损伤。色氨酸是哺乳动物的一种必需氨基酸,具有改变肠道菌群组成与代谢,提高肠道黏膜屏障的功能,在维持肠道稳态方面发挥着重要作用。应激状态下大脑和肠道组织色氨酸及其代谢产物含量的异常,提示色氨酸可能在应激反应中具有重要作用。因此,深入探究应激因素的致病机制,揭示色氨酸及其代谢产物对应激动物肠道功能紊乱的调节作用,可为肠道应激损伤提供安全便捷有效的营养防治措施。本文主要就目前应激机制研究进展、肠道应激损伤与色氨酸代谢对肠应激损伤调控作用的研究现状及最新研究进展进行综述。
Regulation of tryptophan metabolism in stress-related gastrointestinal disorders
The intestine is the largest immune and metabolic site in the body and is thus important for animal health.The integrity of the mucosal barrier and function are fundamental factors protecting the health of the intestine.Stress has been reported to have profound effects on the gastrointestinal tract,including altering gut permeability,the intestinal barrier,and homeostasis.Tryptophan is a functional essential amino acid that alters the gut microbiota and regulates intestine structural and functional change,thus contributing to host physiology and metabolism.Changes in tryptophan metabolism and its metabolites in brain and intestinal tissues during stress suggest that tryptophan may play an important role in the stress response.We therefore review the literature on the mechanisms underlying stress-related diseases and the role of tryptophan metabolism in the regulation of gut homeostasis,with particular focus on functional bowel disorders and their relationship to stress,to provide a theoretical foundation for targeting tryptophan in stress-related intestine diseases.

stressgut microbiotagut-brain axistryptophan metabolismstress-related intestinal disorders

陈菁青、郑建华、董巧燕、张文盛、马连素、邱业峰

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军事医学研究院实验动物中心,北京 100071

北京医药健康科技发展中心,北京 100035

应激 肠道微生物 肠-脑轴 色氨酸代谢 肠应激损伤

全军实验动物专项军事医学研究院青年人才基金

SYDW_KY[2021]06AMMS-QNPY-2022-019

2024

中国实验动物学报
中国实验动物学会,中国医学科学院医学实验动物研究所

中国实验动物学报

CSTPCD北大核心
影响因子:0.767
ISSN:1005-4847
年,卷(期):2024.32(4)
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