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Mitochondrial dehydrogenase (WST-1) assay for rat embryonal neurosensory precursor retinal cells after 24-hour exposure to dexamethasone solution (Dex-S), dexamethasone powder solubilized in DMSO (Dex-P), DMSO at an equivalent dose used to solubilize the powder, and untreated controls. There was a reduction in mitochondrial dehydrogenase in all groups compared to untreated controls (P<.01). No difference was found between cells treated with Dex-S and Dex-P.
