Mechanism of antagonistic effects of Andrographis paniculata methanolic extract against Staphylococcus aureus

Taken together these results suggest that the low MIC of A. paniculata methanolic leaves extract (0.06 mg/mL) reduce H2O2 toxicity and more importantly, was in itself effectively inhibitory against S. aureus. Further, our observations suggest that a probable mode of its inhibitory mechanism against S. aureus is by reducing total SOD activity through downregulation of sodA and sodM expressions.