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- W2087156906 abstract "Hydrogen sulfide (H2S), a gasotransmitter, exerts both neurotoxicity and neuroprotection, and targets multiple molecules including NMDA receptors, T-type calcium channels and NO synthase (NOS) that might affect neuronal viability. Here, we determined and characterized effects of NaHS, an H2S donor, on cell viability in the primary cultures of mouse fetal cortical neurons. NaHS caused neuronal death, as assessed by LDH release and trypan blue staining, but did not significantly reduce the glutamate toxicity. The neurotoxicity of NaHS was resistant to inhibitors of NMDA receptors, T-type calcium channels and NOS, and was blocked by inhibitors of MEK, but not JNK, p38 MAP kinase, PKC and Src. NaHS caused prompt phosphorylation of ERK and upregulation of Bad, followed by translocation of Bax to mitochondria and release of mitochondrial cytochrome c, leading to the nuclear condensation/fragmentation. These effects of NaHS were suppressed by the MEK inhibitor. Our data suggest that the NMDA receptor-independent neurotoxicity of H2S involves activation of the MEK/ERK pathway and some apoptotic mechanisms." @default.
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- W2087156906 date "2011-11-01" @default.
- W2087156906 modified "2023-10-05" @default.
- W2087156906 title "Involvement of ERK in NMDA receptor-independent cortical neurotoxicity of hydrogen sulfide" @default.
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- W2087156906 doi "https://doi.org/10.1016/j.bbrc.2011.09.144" @default.
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