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- W1991500309 abstract "In the present study, we examined the effect of two salts of aluminum (Al), aluminum maltolate (Almal) and aluminum chloride (AlCl(3)), on the cell viability of PC12 cells in the absence and presence of nerve growth factor (NGF). A 72-h exposure of PC12 cells to Almal (300 microM) resulted in a marked increase of lactic dehydrogenase (LDH) release from the cells and a decrease of 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) activity. These results indicate that Almal induces a decrease in the cell viability. Under the same conditions, Almal also caused DNA ladder formation and chromatin condensation. In contrast, AlCl(3) did not showed an increased LDH release and a decreased MTT activity in the concentration range of the salt tested (0.1-1 mM). The extent of LDH release and MTT activity decrease induced by Almal treatment closely depended on the amount of Almal incorporated into the cells. An increase in the fluorescence intensity of 6-carboxy-2',7'-dichlorodihydrofluorescein diacetate, di(acetoxymethyl ester) (C-DCDHF-DA) which was loaded into the cell by Almal treatment and its prevention by pyrrolodine dithiocarbamate, a potent antioxidant, suggested that Almal-induced cell death partly proceeds via reactive oxygen species (ROS) production. NGF effectively inhibited the increase of LDH release and the decrease of MTT activity, as well as DNA fragmentation and chromatin condensation. However, NGF did not inhibit the increase of C-DCDHF-DA fluorescence in the cells induced by Almal treatment. From these results, it is suggested that ROS production associated with accumulation of Al is one possible important factor in the onset of Al neurotoxicity via apoptotic cell death and that NGF protects against cell degeneration associated with Al accumulation, but independently of ROS production." @default.
- W1991500309 created "2016-06-24" @default.
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- W1991500309 date "2002-07-01" @default.
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- W1991500309 title "Nerve growth factor protects against aluminum-mediated cell death" @default.
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- W1991500309 doi "https://doi.org/10.1016/s0300-483x(02)00139-7" @default.
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