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Effect of ethyl acetate fraction of M. oleifera extract on NF-κB signaling pathway in LPS-stimulated RAW264.7 macrophages. Cells were pretreated with ethyl acetate fraction or dexamethasone for 2 h and then stimulated with LPS to induce the inflammatory signaling cascade. Cells were fixed and processed for immunostaining with specific antibodies. Nuclei were counterstained with Hoechst stain (blue color) and observed with a fluorescent microscope (magnification of images, ×600).
