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KMID : 1161420120150110968
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Journal of Medicinal Food
2012 Volume.15 No. 11 p.968 ~ p.973
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Prickly Pear Cactus (Opuntia ficus indica var. saboten) Protects Against Stress-Induced Acute Gastric Lesions in Rats
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Kim Seung-Hyun
Jeon Byung-Ju
Kim Dae-Hyun
Kim Tae-Il
Lee Hee-Kyoung
Han Dae-Seob
Lee Jong-Hwan
Kim Tae-Bum
Kim Jung-Wha
Sung Sang-Hyun
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Abstract
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The protective activity of prickly pear cactus (Opuntia ficus indica var. saboten) fruit juice and its main constituent, betanin, were evaluated against stress-induced acute gastric lesions in rats. After 6?h of water immersion restraint stress (WIRS), gastric mucosal lesions with bleeding were induced in Sprague?Dawley rats. Pretreatment of a lyophilized powder containing O. ficus indica var. saboten fruit juice and maltodextrin (OFSM) and betanin significantly reduced stress lesions (800?1600?mg/kg). Both OFSM and betanin effectively prevented the decrease in gastric mucus content as detected by alcian blue staining. In addition, OFSM significantly suppressed WIRS-induced increases in the level of gastric mucosal tumor necrosis factor-α and myeloperoxidase (MPO). Betanin alone was only effective in decreasing MPO. These results revealed the protective activity of OFSM against stress-induced acute gastric lesions and that betanin may contribute to OFSM’s gastric protective activity, at least in part. When OFSM and betanin were taken together, OFSM exerted gastroprotective activity against stress-induced gastric lesions by maintaining gastric mucus, which might be related to the attenuation of MPO-mediated damage and proinflammatory cytokine production.
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KEYWORD
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betanin, gastric lesion, Opuntia ficus indica var. saboten, water immersion restraint stress
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