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KMID : 1007520150240031159
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Food Science and Biotechnology
2015 Volume.24 No. 3 p.1159 ~ p.1165
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White Tea (Camellia sinenesis (L.)) Ethanol Extracts Attenuate Reserpine-induced Gastric Ulcers in Mice
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Song Jia-Le
Zhou Yalin
Feng Xia
Zhao Xin
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Abstract
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The gastroprotective effect of white tea extract ethanol (WTEE) on reserpine induced gastric ulcers in KM mice was investigated. Gastric juice secretion, the pH of gastric juice, serum neuropeptides, including motilin (MOT), substance P (SP), vasoactive intestinal peptide (VIP), and somatostatin (SS) levels, and serum levels of the inflammatory cytokines TNF-α, IL-6, IL-12, and IFN-γ were measured. WTEE dose-dependently reduced reserpine-induced gastric juice secretion and increased the pH of gastric juice. WTEE increased serum levels of VIP and SS and reduced levels of MOT, SP, and inflammatory cytokines in the serum. WTEE modulated gastric expression of occludin and p38 phosphorylation in ulcer-bearing mice. WTEE has a gastroprotective effect against reserpine-induced gastric ulcers in KM mice via reduction of gastric juice secretion, modulation of serum neuropeptide levels, attenuation of serum inflammatory cytokines, and regulation of gastric levels of occludin and p38 phosphorylation.
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KEYWORD
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white tea, gastroprotective, neuropeptides, p38
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