نتایج جستجو برای: epigallocatechin gallate

تعداد نتایج: 4694  

2015
Lingzhi Li Ying Peng Chong Hu Chunting Liu Qingbo Liu Linguang Li Jie Wu Shaojiang Song

Phytochemical investigation of the aqueous extract of Pithecellobium clypearia afforded one novel compound, clypearoside A (1), and one new stereoisomer, (-)-(2S,3S)-epigallocatechin-7-gallate (2) and four known ones (3-6). Their structures were elucidated on the basis of spectroscopic data, especially 2D NMR, HRESIMS and ECD spectra. Compounds 2-4 showed strong activity against DPPH (diphenylp...

Journal: :Antimicrobial agents and chemotherapy 1999
K Mabe M Yamada I Oguni T Takahashi

The catechin epigallocatechin gallate showed the strongest activity of the six tea catechins tested against Helicobacter pylori (MIC for 50% of the strains tested, 8 microg/ml). It had bactericidal activity at pH 7 but not at pH </=5.0. In infected Mongolian gerbils, H. pylori was eradicated in 10 to 36% of the catechin-treated animals, with significant decreases in mucosal hemorrhage and erosi...

2015
Kunihiro Kaihatsu

Epigallocatechin gallate (EGCG) (Figure 1a) is the major catechin component of green tea (Camellia sinensis). It has been shown to have antiviral properties against DNA viruses such as herpes simplex virus (HSV; Herpesviridae) [1], adenovirus (Adenoviridae) [2], human papilloma virus (HPV; Papovaviridae) [3], and hepatitis B virus (HBV; Hepadnaviridae) [4], and RNA viruses such as influenza vir...

Background and Objectives: Chronic morphine use leads to structural changes in the brain. Some studies have shown the antioxidant and neuroprotective effects of Epigallocatechin gallate (EGCG) as a main polyphenol of green tea. Therefore, the aim of this study was to investigate the effect of EGCG on working memory in morphine-treated rats. Materials and Methods: In this experimental study, 32...

Journal: :Advanced Functional Materials 2021

In article number 2009442, Ang Li, Yilong Cheng, and co-workers develop a facile dressing strategy via one-pot radical copolymerization of acrylamide the complex formed through boronate ester bond by 3-acrylamido phenylboronic acid green tea derivative epigallocatechin-3-gallate. The resulting hydrogels exhibit good mechanical strength, adequate tissue adhesiveness, fast self-healing capability...

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