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The Protective Effects of Orthosiphon stamineus Extract Against Intestinal Barrier Injury in High-Fat Diet-Induced Mouse and Oxidative Stress Cell Models

文献类型： 外文期刊

作者： Cai, Xuan 1 ; Zhu, Lihui 1 ; Yin, Xiaofeng 3 ; Xue, Huiqin 1 ; Xiao, Changfeng 2 ; Hang, Yiqiong 1 ; Xu, Jianxiong 4 ; Lu 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, 2901 Beidi Rd, Shanghai 201106, Peoples R China

2.Shanghai Shenfeng Anim Husb & Vet Sci Technol Co, Shanghai, Peoples R China

3.Wuzhong Anim Husb & Vet Stn, Suzhou, Peoples R China

4.Shanghai Jiao Tong Univ, Sch Agr & Biol, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

关键词： Orthosiphon stamineus; intestinal barrier protection effect; tight junction protein; antioxidant; fingerprinting

期刊名称：NATURAL PRODUCT COMMUNICATIONS （ 影响因子：0.986； 五年影响因子：1.068 ）

ISSN： 1934-578X

年卷期： 2021 年 16 卷 1 期

页码：

收录情况： SCI

摘要： Orthosiphon stamineus Benth. (Lamiaceae) is commonly used for the treatment of kidney diseases, but its role in intestinal barrier function remains unknown. The present study investigated the protective effects of O. stamineus extract (OE) against oxidative stress-induced injury to the small intestinal epithelium and the possible mechanism. High-performance liquid chromatography fingerprinting was used to analyze OE. Oxidative stress was induced by hydrogen peroxide (1 mM for 1 hour) in an IPEC-J2 cell monolayer model and a high-fat diet in C57BL/6 mice (8 weeks). The malondialdehyde (MDA) content was tested in both models. To evaluate permeability, transepithelial electrical resistance (TEER) was tested in a cell model. Serum diamine oxidase (DAO) and endotoxin contents were determined in a mouse model, and histological sections were analyzed. The messenger ribonucleic acid expression of tight junction proteins was measured by quantitative real-time polymerase chain reaction. Pretreatment with OE (50 mu g/mL) increased the IPEC-J2 cell monolayer TEER (12.4%) and decreased MDA (from 6.1 to 4.7 mmol/mg prot). Oral administration of OE (100 mg/kg) decreased serum DAO (34.2%), endotoxin (13.4%), and MDA (from 21.3 to 11.0 mmol/mL) in mice. OE upregulated ZO-1 (42.8% in the cell model and 125.0% in mice) and occluding (127.0% in the cell model and 120.3% in mice) gene expression. These results confirmed the protective effect of OE on the intestinal barrier, which was associated with the antioxidant effect of OE; thus, OE is suitable for the prevention and treatment of intestinal barrier injury.

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