ReferenceID 4008

Evaluation of anti-inflammatory effects of leaf and seed extracts of Plantago major on acetic acid-induced ulcerative colitis in rats

J Ethnopharmacol

Ethnopharmacological relevance: Plantago major (P. major) has traditionally been used in Iranian Persian medicine to treat gastrointestinal ulcers and bleeding. Research objectives: This study aimed to investigate the an

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Reference Id
4008
Evidence Id
20598
Core Evidence Id
20598
Source Reference Id
1298
Herb2 Reference Id
HBREF002095
Subject Paper Key
HERB001019_35934192
Pubmed Id
35934192
Doi
10.1016/j.jep.2022.115595
Paper Title
Evaluation of anti-inflammatory effects of leaf and seed extracts of Plantago major on acetic acid-induced ulcerative colitis in rats
Paper Abstract
Ethnopharmacological relevance: Plantago major (P. major) has traditionally been used in Iranian Persian medicine to treat gastrointestinal ulcers and bleeding. Research objectives: This study aimed to investigate the anti-inflammatory effects of the leaf and seed extracts of P. major in rats with acetic acid-induced ulcerative colitis (UC). Materials and methods: To this end, 49 rats were randomly divided into seven groups. UC was induced in all groups but the control (vehicle) group using a single intra-rectal administration of 2 ml of 4% acetic acid. Other groups received daily intraperitoneal (i.p.) injections of the seed extract of P. major (400 mg/kg and 700 mg/kg), the leaf extract of P. major (400 mg/kg and 700 mg/kg), and sulfasalazine (400 mg/kg) for seven consecutive days, respectively. The rats' rectum was surgically removed and evaluated for macroscopic and microscopic damage. The tissue levels of oxidative stress and inflammatory markers were measured using the ELISA method. Results: The high-dose leaf extract significantly decreased ulcer index and histopathologic damage as well as the tissue levels of IL-6, TNF-α, PGE2, IL-1β, MPO, and MDA compared to the damage group. The low-dose leaf extract also significantly reduced the levels of some markers. The seed extract in the two used doses caused a modest decrease in the histopathological damages and ulcer index. Conclusions: P. major leaf extract effectively reduces inflammation and mucosal damage in rats with UC, especially when administered in high doses. P. major seed extract has minimal protective effects on UC.
Journal
J Ethnopharmacol
Publish Year
2022
Experiment Subject
rat
Experiment Type
Animal Experiment
Phenotype Related
Mucosal Damage; Bleeding; Ulcer; Acetic Acid-induced Ulcerative Colitis; Gastrointestinal Ulcers
Paper Title Cn
Paper Title En
Evaluation of anti-inflammatory effects of leaf and seed extracts of Plantago major on acetic acid-induced ulcerative colitis in rats
Bilingual Status
semi_complete