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- W2783997753 abstract "The aim of the present study was to investigate the protective effects and underlying mechanisms of Garcinia xanthochymus, a perennial medicinal plant native to Yunnan, China, against H2O2-induced oxidative damage in rat pheochromacytoma PC12 cells. Preincubation of PC12 cells with fruit EtOAc fraction (fruit-EFr., 12.5–50 µmol·L−1) of G. xanthochymus for 24 h prior to H2O2 exposure markedly improved cell viability and increased the activities of antioxidant enzymes (superoxide dismutase, catalase, and heme oxygenase-1 [HO-1]), prevented lactate dehydrogenase release and lipid peroxidation malondialdehyde production, attenuated the decrease of matrix metalloproteinases (MMP), and scavenged reactive oxygen species (ROS). Fruit-EFr. also reduced BAX and cytochrome C expression and improved BCL-2 expression, thereby decreasing the ratio of BAX to BCL-2. Fruit-EFr. activated the nuclear translocation of NRF2 to increase HO-1 and induced the phosphorylation of AKT. Its cytoprotective effect was abolished by LY294002, a specific inhibitor of PI3K. Taken together, the above findings suggested that fruit-EFr.of G. xanthochymus could enhance cellular antioxidant defense capacity, at least in part, through upregulating HO-1 expression and activating the PI3K/AKT pathway and that it could suppress H2O2-induced oxidative damage via PI3K/AKT and NRF2/HO-1 signaling pathways." @default.
- W2783997753 created "2018-01-26" @default.
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- W2783997753 date "2017-11-01" @default.
- W2783997753 modified "2023-10-01" @default.
- W2783997753 title "Garcinia xanthochymus extract protects PC12 cells from H 2 O 2 -induced apoptosis through modulation of PI3K/AKT and NRF2/HO-1 pathways" @default.
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- W2783997753 doi "https://doi.org/10.1016/s1875-5364(18)30016-5" @default.
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