Mechanisms of excitotoxicity: AMPA-mediated calcium dynamics in spinal motoneurons
M Jaeckel, K Haastert, P Claus, C Grothe, R Dengler, J Bufler, J Grosskreutz · Aktuelle Neurologie · 2004 · Heft 09
Bibliografische Angaben
Zusammenfassung
Introduction: ALS is a neurodegenerative disease, which is characterized by rapid loss of motoneurons. Chronic AMPA- receptor mediated excitotoxicity seems to play a major role in the pathogenetic process, but the mechanisms of the selective vulnerability of motoneurons are still unknown. Apoptosis like degeneration of motoneurons after excitotoxic insults can be imitated in vitro, proposing extensive mitochondrial calcium uptake, increased production of reactive oxygen species and delayed collaps of calcium homeostasis as mechanisms involved. Methods: Ventral spinal chord was prepared from 14- day- old rat embr…