2002 Volume 66 Issue 7 Pages 1559-1562
Tea catechins inhibited TBARS accumulation in HepG2 cells, the order of effectiveness being (−)-epigallocatechin gallate (EGCG)>(−)-epigallocatechin (EGC)≥(−)-epicatechin gallate (ECG)>(−)-epicatechin (EC). EGCG and EGC protected the depletion of α-tocopherol in the cells, and the glutathione content was enhanced by all four catechins. Moreover, all four catechins suppressed the formation of glutathione disulfide and the activation of glutathione peroxidase induced by tert-butylated hydroperoxide.
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