Second , we studied the effect of NAC on IgE synthesis in human normal B cells costimulated with IL-4 and anti-CD40 mAb .
second , we studied the effect of nac on ige synthesis in human normal b cells costimulated with il-4 and anti-cd40 mab .
O O O O O O O B-amino_acid_monomer O B-protein_family_or_group O O O O O O O O B-protein_molecule O B-protein_molecule I-protein_molecule O