Figure 6From: Artesunate potentiates antibiotics by inactivating heme-harbouring bacterial nitric oxide synthase and catalaseDetermination of catalase activity in B. licheniformis upon exposure to rifampicin or artesunate + rifampicin. ART: artesunate; Rif: rifampicin. A single asterisk (*) represents significant difference of the artesunate + rifampicin group from the rifampicin group (P < 0.05); Double asterisks (**) represent very significant difference of the artesunate + rifampicin group from the rifampicin group (P < 0.01).Back to article page