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CD68 expression in LPS-treated BV2 microglia. Immunocytochemistry was used to investigate the expression of CD68 (a marker of microglia activation). CD68 expression was higher in LPS treated BV2 microglia than in non-treated controls, and tryptanthrin pretreatment attenuated this LPS-induced expression. Scale bar: 50 μm, 4′,6-diamidino-2-phenylindole (DAPI): blue, CD68: green, Con, normal control group; LPS, LPS (1 μg/ml) treatment group; TT, tryptanthrin.
