title: The in vitro effect of a calf thymus extract (thymostimulin) on the immunologic parameters of patients with untreated Hodgkin's disease.
abstract: The in vitro effect of a calf thymus extract, thymostimulin (TP--1), on the E-rosette-forming capacity and on the PHA blastogenic response of peripheral blood lymphocytes was evaluated in 20 patients with untreated Hodgkin's disease. The mean percentage of lymphocytes forming E rosettes increased in patients from 44.2% to 57.5% (P less than 0.005). The mean PHA stimulation index rose with all three concentrations tested, but returned to the normal range only with the highest PHA concentration (60 mu/ml). An increase in the immune parameters was greatest in those patients who presented with decreased E-rosetting cells of total lymphocyte counts or whose disease was Stage III or IV or of mixed cellular histology.
mesh_terms: D000293:Adolescent; D000328:Adult; D002478:Cells, Cultured; D005260:Female; D006689:Hodgkin Disease / Q000276:immunology* / Q000473:pathology; D006801:Humans; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D011336:Probability; D012397:Rosette Formation; D013949:Thymus Extracts / Q000494:pharmacology*
chemical_list: D013949:Thymus Extracts; C031407:thymostimulin