Potential effects of tea and its constituents on SARS-CoV-2 infection were assessed in vitro. Infectivity was decreased to 1/100 undetectable levels after a treatment with black tea, green roasted or oolong for 1 min. An addition (−) epigallocatechin gallate (EGCG) significantly inactivated SARS-CoV-2, while the same concentration theasinensin A (TSA) galloylated theaflavins including theaflavi...

Despite numerous previous studies, the mechanism of the free radical interaction between alpha-tocopherol (VE), or ascorbate and flavonoids, as coantioxidants remains unclear. The synergistic antioxidant effects of VE or L-ascorbyl 2,6-dibutyrate (ASDB, an ascorbate derivative) with the flavonoids (-)-epicatechin (EC), (-)-epigallocatechin (EGC), (-)-epicatechin gallate (ECG) and (-)-epigalloca...

Nowadays, the society is facing a large health problem with the rising of new diseases, including cancer, heart diseases, diabetes, neurodegenerative diseases, and obesity. Thus, it is important to invest in substances that enhance the health of the population. In this context, epigallocatechin gallate (EGCG) is a flavonoid found in many plants, especially in tea. Several studies support the no...

statement of the problem: self-etch adhesives can activate matrix metalloproteinase (mmp) which hydrolyzes organic matrix of demineralized dentin. epigallocatechin gallate (egcg), especially found in green tea, could inhibit the activation of mmp. purpose: the aim of this study was to evaluate the effect of adding epigallocatechin gallate (egcg) into two types of adhesives on dentin bond streng...

Rapidly progressive glomerulonephritis is the most aggressive form of glomerulonephritis with the worst prognosis. The current unspecific immunosuppressive therapy with corticosteroids and cytotoxic agents is often complicated by severe side effects. Peng and colleagues studied the therapeutic potential of the green tea component (-)-epigallocatechin-3-gallate (EGCG) in a murine model of immune...

A simple electrochemical sensor consisting of electrically heated carbon paste electrode with the surface modified by dsDNA is used to characterize voltammetric behaviour and antioxidative activity of four selected flavonoids. Quercetin, rutin, catechin and epigallocatechin gallate accumulate within the DNA layer. A positive effect of the electrode temperature within the range of 20 to 38 oC on...