title: Radioimmunoassay of serum creatine kinase-BB as a tumour marker in breast cancer.
abstract: Brain type creatine kinase-BB (CPK-BB) was measured by radioimmunoassay in the serum of 113 women with breast cancer and 354 female controls. 80% of women with metastatic breast cancer had levels above 3 ng/ml (control range 0.5--3.7 ng/ml); the highest level was 23 ng/ml. 60% of women with local disease but no evidence of distant metastases showed levels above 3 ng/ml, the highest being 9.0 ng/ml. Of women who had presented with stage I, II, or III disease and postoperatively had no evidence of persistent disease 30% had levels above 3 ng/ml. Serial measurements in 31 patients indicated that the serum CPK-BB correlated with clinical response to treatment.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003402:Creatine Kinase / Q000097:blood*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011863:Radioimmunoassay
chemical_list: D003402:Creatine Kinase