[Enzyme immunoassay for pregnancy-specific beta 1-glycoprotein (SP-1) in patients with testicular tumors].

The use of a two-side-binding-enzyme-immunoassay for pregnancy-specific beta 1-glycoprotein (SP-1) in tumours of the testicles is described. The lower limit of evidence is with 4 ng/ml near to the physiological region. In 17 of 41 non-seminomatous germinal tumours of the testicles (41%) initially increased SP-1-serum concentrations were present, the other measuring values correlated with the course of the disease. In all tumours of the testicles with initially increased SP-1-titres the use of the SP-1-test gives a further possibility of the regulation of therapy and control of the course.