Dexamethasone reduces pathogenic Aβ-induced HCSM cell death. Near confluent cultures of HCSM cells were incubated in the presence or absence of 25 μM Dutch mutant Aβ40 with daily administration of anti-inflammatory drug (1 μM final concentration). After six days the viability of the HCSM cells was determined using a fluorescent live cell/dead cell assay. The data presented are the mean ± S.D. of triplicate wells from three separate experiments.