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Biomolecules 2019, 9(4), 137; https://doi.org/10.3390/biom9040137

Preventive Effect of Anji White Tea Flavonoids on Alcohol-Induced Gastric Injury through Their Antioxidant Effects in Kunming Mice

1,2,3,4,†, 4,†, 5,†, 1,2,3 and 1,2,3,*
1
Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China
2
Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China
3
Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China
4
College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China
5
Environment and Quality Inspection College, Chongqing Chemical Industry Vocational College, Chongqing 401228, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 27 February 2019 / Revised: 27 March 2019 / Accepted: 1 April 2019 / Published: 4 April 2019
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Abstract

Anji white tea (Camellia sinensis) is a traditional Chinese tea beverage, which is classified as green tea and contains an abundant amount of flavonoids. In this study, the preventive effect of Anji white tea flavonoids (AJWTFs) on ethanol/hydrochloric acid-induced gastric injury in mice was evaluated. The serum and gastric tissues of mice were analyzed using a biochemical kit and by quantitative polymerase chain reaction (qPCR). Observation of the appearance of the stomach indicated that AJWTFs could effectively reduce the area of gastric injury caused by ethanol/hydrochloric acid, and the inhibition rate of AJWTF on gastric injury increased with an increase in AJWTF concentration. The Anji white tea flavonoids could also reduce the volume and pH of gastric juice in mice with gastric injury. Biochemical results showed that AJWTFs could increase the superoxide dismutase (SOD) and glutathione (GSH) activities, as well as decrease the malondialdehyde (MDA) level, in the serum and liver of mice with gastric injury. Pathological observation confirmed that AJWTFs could inhibit the tissue damage caused by ethanol/hydrochloric acid in the stomach of mice. Further qPCR experiments also showed that AJWTFs could inhibit the decreases in neuronal nitric oxide synthase (nNOS), endothelial nitric oxide synthase (eNOS), copper/zinc superoxide dismutase (Cu/Zn–SOD), manganese superoxide dismutase (Mn–SOD), catalase (CAT), and the increase in inducible nitric oxide synthase (iNOS) expression in the gastric tissue of mice caused by gastric injury. As observed, AJWTFs exerted a good preventive effect on alcohol-induced gastric injury in mice induced by ethanol/hydrochloric acid, and the effect is close to that of ranitidine. Anji white tea flavonoids present good antioxidant effect, which allows them to effectively prevent alcoholic gastric injury and be used as biologically active substances with a broad range of applications. View Full-Text
Keywords: Anji white tea; flavonoid; alcoholic gastric injury; messenger RNA expression; oxidation Anji white tea; flavonoid; alcoholic gastric injury; messenger RNA expression; oxidation
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Liu, B.; Feng, X.; Zhang, J.; Wei, Y.; Zhao, X. Preventive Effect of Anji White Tea Flavonoids on Alcohol-Induced Gastric Injury through Their Antioxidant Effects in Kunming Mice. Biomolecules 2019, 9, 137.

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