Polyphenols in Kuding tea help prevent HCl/ethanol-induced gastric injury in mice

Food & Function
Xin ZhaoKun-Young Park

Abstract

We conducted the present study to determine the gastric injury preventive effects of polyphenols in Kuding tea (KTPs) in Kunming (KM) mice through the inhibition of gastric-acid secretion and the protection of the gastric mucosa. Mice treated with a high concentration of Kuding tea polyphenols (HKTP) had lower serum levels of interleukin-6 (IL-6), IL-12, tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), motilin (MOT), substance P (SP), and endothelin-1 (ET-1), and higher serum levels of somatostatin (SS) and vasoactive intestinal peptide (VIP) than did the mice in the control group. Serum and gastric tissue levels of nitrous oxide (NO), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and GSH were higher in the HKTP-treated mice than in the control mice, but malondialdehyde (MDA) levels were lower in the HKTP-treated mice than in the control mice. The expression of occludin, epidermal growth factor (EGF), EGF receptor (EGFR), vascular endothelial growth factor (VEGF), nuclear factor of κ-light polypeptide gene enhancer in B-cells inhibitor-α (IκBα), Cu/Zn-SOD (cuprozinc-superoxide dismutase), Mn-SOD (manganese-superoxide dismutase), GSH-Px (glutathione peroxidase), neuronal nitric oxide synthase (nNOS), endothe...Continue Reading

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Citations

Jun 4, 2019·European Journal of Nutrition·Alan KuangMarilyn C Cornelis
Jun 19, 2020·TheScientificWorldJournal·Abdalbasit Adam Mariod, Suzy Munir Salama
Nov 6, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yu QianXin Zhao
Oct 29, 2020·Phytomedicine : International Journal of Phytotherapy and Phytopharmacology·Guan-Yu WangGow-Chin Yen
Aug 3, 2021·Evidence-based Complementary and Alternative Medicine : ECAM·Jiawei LiuShu Jing

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Methods Mentioned

BETA
enzyme-linked immunosorbent assay
MDA
PCR
Protein Assay
electrophoresis

Software Mentioned

SAS
ImageJ

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