Sequential studies of lymphocytes, neutrophils and serum proteins during prednisone treatment.

Seven patients (6 with connective tissue diseases, 1 with bronchial asthma) have been studied before, during, and after prednisone therapy. Maximum dose was 15 mg daily, which was tapered off to zero within three months. All patients showed striking subjective improvement during therapy. The ESR reflected this improvement but the acute phase proteins did not. The serum concentration of prealbumin rose significantly during the period of most intensive steroid treatment. IgE decreased in the patient with bronchial asthma, but otherwise the immunoglobulins did not change, and positive serological tests remained unchanged. Contact sensitization to haptens was induced without impairment during therapy. Prednisone induced rises in blood lymphocyte and neutrophil concentrations. Lymphocyte transformation, both mitogen- and antigen-induced, was not influenced by therapy, but PPD-induced inhibition of leucocyte migration decreased. Neutrophil phagocytosis was unimparied, but bactericidal capacity, stimulated nitroblue tetrazolium reduction, and neutrophil and plasma lysozyme concentrations were all depressed during treatment with prednisone.