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- W1971958909 abstract "The developing rodent brain is vulnerable to pharmacological blockade of N-methyl-d-aspartate (NMDA) receptors which can lead to severe and disseminated apoptotic neurodegeneration. Here, we show that systemic administration of the NMDA receptor antagonist MK801 to 7-day-old rats leads to impaired activity of extracellular signal-regulated kinase 1/2 (ERK1/2) and reduces levels of phosphorylated cAMP-responsive element binding protein (CREB) in brain regions which display severe apoptotic neurodegeneration. Impaired ERK1/2 and CREB activity were temporally paralleled by sustained depletion of neurotrophin expression, particularly brain-derived neurotrophic factor (BDNF). BDNF supplementation fully prevented MK801-induced neurotoxicity in immature neuronal cultures and transgenic constitutive activation of Ras was associated with marked protection against MK801-induced apoptotic neuronal death. These data indicate that uncoupling of NMDA receptors from the ERK1/2-CREB signaling pathway in vivo results in massive apoptotic deletion of neurons in the developing rodent brain." @default.
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- W1971958909 date "2004-07-01" @default.
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- W1971958909 title "Mechanisms leading to disseminated apoptosis following NMDA receptor blockade in the developing rat brain" @default.
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- W1971958909 doi "https://doi.org/10.1016/j.nbd.2004.03.013" @default.
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