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Ulceration was induced by 3 days\u2019 oral administration of aspirin (150 mg\/kg body weight). Wistar rats were pretreated with cimetidine (reference drug) at a dose of 100 mg\/kg body weight and MEVA at 200, 300, and 400 mg\/kg body weight once daily for 28 days prior to ulcer induction. At the end of the experiment, gastric secretions, antioxidant status, and histopathological alteration were evaluated. We observed that the significantly increased ulcer index, gastric volume, free and total acidity, malondialdehyde level, and pepsin activity were effectively reduced following treatment with 200 and 300 mg\/kg MEVA. The extract also markedly attenuated the reduced activity of superoxide dismutase and reduced glutathione level as well as pH and mucin content in the ulcerated rats. Administration of the extract also significantly attenuates necrosis of the stomach tissue of the ulcerated rats. The results suggested that the MEVA leaf, preferably at 200 and 300 mg\/kg body weight, ameliorated aspirin-induced gastric ulceration via antioxidative and H\n                    <jats:sub>2<\/jats:sub>\n                    receptor antagonist.\n                  <\/jats:p>","DOI":"10.1177\/1559325818785087","type":"journal-article","created":{"date-parts":[[2018,7,9]],"date-time":"2018-07-09T00:12:30Z","timestamp":1531095150000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":22,"title":["Protective Effects of Methanol Extract of\n                    <i>Vernonia amygdalina<\/i>\n                    (\n                    <i>del<\/i>\n                    .) Leaf on Aspirin-Induced Gastric Ulceration and Oxidative Mucosal Damage in a Rat Model of Gastric Injury"],"prefix":"10.1177","volume":"16","author":[{"given":"Modinat A.","family":"Adefisayo","sequence":"first","affiliation":[{"name":"Department of Physiology, Faculty of Basic Medical Sciences, University of Medical Sciences, Ondo State, Nigeria"},{"name":"Department of Physiological Sciences, Faculty of Basic Medical Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rufus O.","family":"Akomolafe","sequence":"additional","affiliation":[{"name":"Department of Physiological Sciences, Faculty of Basic Medical Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olumide S.","family":"Akinsomisoye","sequence":"additional","affiliation":[{"name":"Department of Physiological Sciences, Faculty of Basic Medical Sciences, Obafemi Awolowo University, Ile-Ife, 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