tokens: By confocal fluorescence microscopy , we observed a positive staining for NF-kappa B ( p65 subunit ) in the nuclei of PAEC exposed for 1 hr 30 min to human serum , which indicated NF-kappa B activation in this setting .
folded_tokens: by confocal fluorescence microscopy , we observed a positive staining for nf-kappa b ( p65 subunit ) in the nuclei of paec exposed for 1 hr 30 min to human serum , which indicated nf-kappa b activation in this setting .
labels: O B-other_name I-other_name I-other_name O O O O O O O B-protein_complex I-protein_complex O B-protein_subunit I-protein_subunit O O O B-cell_component O B-cell_line O O O O O O O B-tissue I-tissue O O O B-protein_complex I-protein_complex O O O O O