Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (5): 1009-1016.DOI: 10.3969/j.issn.1004-1524.20240827

• Animal Science • Previous Articles     Next Articles

Gastroprotective effect of polysaccharides extracted from Chimonanthus salicifolius on ethanol-induced gastric injury in rats

CHEN Lin1(), GU Qing2,*()   

  1. 1. Department of Food Research, Zhejiang Business College, Hangzhou 310053, China
    2. Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
  • Received:2024-09-22 Online:2025-05-25 Published:2025-06-11

Abstract:

In this study, we established a rat model of ethanol-induced gastric ulcer, to examine the gastroprotective effect of polysaccharides extracted from Chimonanthus salicifolius(CSP), and reveal the related mechanism. It was shown that the main components of CSP were mannose, rhamnose, glucose, galactose and trehalose. Oral gavage with low (200 mg·kg-1, based on body weight) or high (400 mg·kg-1, based on body weight ) dose CSP for 28 days prevented the formation of gastric ulcer, as the ulcer index was significantly (P<0.05) decreased. Compared with the model group, high dose CSP treatment significantly enhanced the activity of superoxide dismutase (SOD) and the contents of prostaglandin E2 (PGE2) and epidermal growth factor (EGF), decreased the malonaldehyde (MDA) content, and inhibited the formation of tumour necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β). CSP could relieve the gastric oxidative stress in rats by regulating the signaling pathways of mitogen-activated protein kinases (MAPKs) and matrix metalloproteinases (MMPs), hence protect rats from the ethanol-induced gastric damage.

Key words: Chimonanthus salicifolius, polysaccharides, gastric ulcer, ethanol

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