title: Humoral components of host defense in sickle cell disease during painful crisis and asymptomatic periods.
mesh_terms: D000293:Adolescent; D000328:Adult; D000755:Anemia, Sickle Cell / Q000150:complications / Q000276:immunology*; D000917:Antibody Formation; D001424:Bacterial Infections / Q000150:complications / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D003180:Complement C3b Inactivator Proteins / Q000032:analysis; D003165:Complement System Proteins / Q000032:analysis; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007223:Infant; D009895:Opsonin Proteins / Q000032:analysis; D013296:Streptococcus pneumoniae / Q000276:immunology; D013927:Thrombosis / Q000150:complications
chemical_list: D003180:Complement C3b Inactivator Proteins; D007136:Immunoglobulins; D009895:Opsonin Proteins; D003165:Complement System Proteins