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- W1998346093 abstract "Manganese (Mn) in excess is toxic to neurons of the globus pallidus, leading to a Parkinsonian-like syndrome. We used rat primary neuron cultures to examine the cellular events following manganese exposure. Following exposure to Mn(2+) for 48 h, striatal neurons showed dose-dependent losses of mitochondrial membrane potential and complex II activity. The Mn exposure effect on mitochondrial membrane potential was significant at every concentration measured (5, 50, and 500 microM), and the manganese exposure effect on complex II activity was significant at 50 and 500 microM. Exposure of striatal neurons to both Mn(2+) and the complex II inhibitor 3-nitropropionic acid resulted in additive toxicity. Striatal neurons exposed to 5 microM Mn(2+) for 48 h exhibited DNA fragmentation and decreases in the immunohistochemically detectable microtubule-associated protein MAP-2. These results indicate that manganese may trigger apoptotic-like neuronal death secondary to mitochondrial dysfunction. Rescue of neurons by apoptosis inhibitors may be helpful in treating manganese toxicity and similar neurodegenerative processes." @default.
- W1998346093 created "2016-06-24" @default.
- W1998346093 creator A5022359483 @default.
- W1998346093 date "2001-05-01" @default.
- W1998346093 modified "2023-10-17" @default.
- W1998346093 title "Manganese toxicity is associated with mitochondrial dysfunction and DNA fragmentation in rat primary striatal neurons" @default.
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- W1998346093 doi "https://doi.org/10.1016/s0361-9230(01)00456-7" @default.
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