Chá verde e efeitos à saúde – Artigo 03
Dissipation Pattern, Processing Factors, and Safety Evaluation for Dimethoate and Its Metabolite (Omethoate) in Tea (Camellia
Sinensis)
Residue levels of dimethoate and its oxon metabolite (omethoate) during tea planting, manufacturing, and brewing were investigated using a modified QuEChERS sample preparation and gas chromatography. Dissipation of dimethoate and its metabolite in tea plantation followed the first-order kinetic with a half-life of 1.08–1.27 d. Tea manufacturing has positive effects on dimethoate dissipation. Processing factors of dimethoate are in the range of ...
Chá verde e efeitos à saúde – Artigo 02
Comparative effects of selected plant polyphenols, gallic acid
and epigallocatechin gallate, on matrix metalloproteinases
activity in multidrug resistant MCF7/DOX breast cancer cells
The aim of the study was to investigate the effect of selected polyphenols: gallic acid (GA) and epigallocatechin gallate (EGCG) on matrix metalloproteinase (MMP-2 and MMP-9) activity in multidrug resistant (MDR) human breast adenocarcinoma cells: MCF7/DOX cells and
obtained recently in our laboratory MCF7/DOX500 cells by the permanent selection of MCF7/DOX cells with 500 nM doxorubicin (DOX). The ...
Chá verde e efeitos à saúde – Artigo 01
Anti-Cancer Effects of Green Tea by Either Anti- or Pro-
Oxidative Mechanisms
Tea derived from the leaves and buds of Camellia sinensis (Theaceae) is consumed worldwide. Green tea
contains various components with specific health-promoting effects, and is believed to exert protective effects
against diseases including cancer, diabetes and hepatitis, as well as obesity. Of the various tea components, the
polyphenol catechins have been the subject of extensive investigation and among the catechins, (-)-epigallocatechin
gallate has the strongest bioactivity in most cases. Our research group ...
