{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T01:40:34Z","timestamp":1780450834577,"version":"3.54.1"},"reference-count":60,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2012,11,13]],"date-time":"2012-11-13T00:00:00Z","timestamp":1352764800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Psychopharmacol"],"published-print":{"date-parts":[[2013,5]]},"abstract":"<jats:p>The study aimed to explore the antidepressant-like effect of oleanolic acid and its possible mechanism related to the monoaminergic system and neurotrophin in mice exposed to the repeated forced swimming test (FST). Both the duration and the latency of immobility affected by oleanolic acid (10, 20 and 40 mg\/kg) were evaluated in the FST repeated at intervals on days 1, 7 and 14, followed by neurochemical and brain-derived neurotrophic factor (BDNF) analyses in the mouse brain regions of frontal cortex and whole hippocampus. A repeated analysis of variance (ANOVA) indicated that over retesting the immobility time increased, whereas latency to immobility tended to decrease. Minute-by-minute analysis showed that immobility time also increased during the 4-min course of the test. In addition, post-hoc Dunnett\u2019s test demonstrated that sub-chronic and chronic, but not acute, oleanolic acid treatment reduced the immobility time (sub-chronic: 20 mg\/kg, 43.5%; chronic: 10 mg\/kg, 19.3%; 20 mg\/kg, 31.8%) and increased the latency to immobility (sub-chronic: 10 mg\/kg, 60.6%; 20 mg\/kg, 80.1%; chronic: 10 mg\/kg, 121.8%; 20 mg\/kg, 140.8%; 40 mg\/kg, 80.0%). Furthermore, chronic administration of oleanolic acid significantly increased serotonin (5-HT) levels (frontal cortex: 44.5%, 41.9%, 27.5% for 10, 20, 40 mg\/kg; hippocampus: 57.2%, 80.9% for 10, 20 mg\/kg), decreased 5-hydroxyindoleacetic acid (5-HIAA)\/5-HT ratio (frontal cortex: 31.6%, 30.1%, 23.5%; hippocampus: 40.6%, 47.7%, 29.2% for 10, 20, 40 mg\/kg) and elevated norepinephrine (NE) levels (hippocampus: 20 mg\/kg, 45.4%) but did not alter dopamine (DA) levels. Moreover, BDNF levels in the two brain regions were also elevated by chronic oleanolic acid treatment (frontal cortex: 20 mg\/kg, 67.2%; hippocampus: 10 mg\/kg, 36.4%; 20 mg\/kg, 55.1%). Taken together, these findings imply that functions of 5-HT, NE and BDNF may be involved in the antidepressant-like effect of oleanolic acid.<\/jats:p>","DOI":"10.1177\/0269881112467090","type":"journal-article","created":{"date-parts":[[2012,11,14]],"date-time":"2012-11-14T20:13:05Z","timestamp":1352923985000},"page":"459-468","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":29,"title":["Antidepressant-like effect of oleanolic acid in mice exposed to the repeated forced swimming test"],"prefix":"10.1177","volume":"27","author":[{"given":"Li-Tao","family":"Yi","sequence":"first","affiliation":[{"name":"Department of Chemical and Pharmaceutical Engineering, College of Chemical Engineering, Huaqiao University, Xiamen, PR China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Chemical and Pharmaceutical Engineering, College 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