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Activity comparison of bryonolic acid (BA) (1) versus oleanolic acid (OA) (2) at reducing nitrite levels and inducing HO-1. RAW 264.7 cells were treated with various concentrations of BA (1) or OA (2) at 24 hours. (A) Nitrite levels were measured via the Griess assay. (B) Immunoblot analysis of HO-1 in the whole cell lysates of triterpenoid treated cells.
