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The bisphosphonate clodronate, clinically used in the treatment of osteoporosis, is known to deplete cells of the monocytic lineage. Using an in vitro model of excitotoxic damage in organotypic hippocampal slice cultures (OHSC), we investigated whether clodronate can also prevent microglial activation that occurs in CNS pathologies. Lesioning of OHSC was performed by application of 50 μM N-methyl-d-aspartate...
Activation of glutamate receptors has been implicated in excitotoxicity. Here, we have investigated whether subtoxic concentrations of glutamate can modulate neuronal death in the developing retina. Explants of rat retinas were pre-incubated with glutamate, N-methyl-d-aspartate (NMDA), kainate, quisqualate or trans-1-amino-1,3-cyclopentanedicarboxylic acid (t-ACPD) for 18 h. Then, glutamate (6 mM)...
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