[SP-1 and beta-HCG in suspected ectopic pregnancy (author's transl)].

Serum levels of SP-1 and beta HCG as Trophoblastic Markers were measured in 31 women operated on suspected ectopic pregnancy. In all 24 patients with tubal pregnancy SP-1 levels estimated by enzyme immunoassay Enzygnost were higher than 5 ng/ml, whereas SP-1 levels in 7 cases with benign ovarian cysts were less than 2 ng/ml. Beta-HCG in serum was analysed by radioimmunoassay (Serono-Biodata): in cases with ectopic pregnancy serum levels were between 113 mIU/ml and 1040 mIU/ml, in the 7 nonpregnant cases the highest concentration was 7 mIU/ml.

[Concentration of pregnancy-specific-beta-1-protein sp1 in amniotic fluid in normal and pathologic pregnancies (author's transl)].

The concentration of the pregnancy specific protein SP-1 in amniotic fluid was determined in normal and pathologic pregnancies. SP-1 concentrations in amniotic fluid of normal pregnancies amounted to one percent of the maternal serum concentrations. In cases with diabetes mellitus intrauterine death and rhesus incompatibility SP-1 levels were increased significantly.

Rapid method for eluting IgG antibodies from erythrocytes coated with anti-Rh immune antibodies.

A method for eluting IgG antibodies from erythrocytes coated with anti-Rh immune antibodies has been developed, using temperature 56 degrees C as decomplexing factor and ion-exchange on DEAE Sephadex A-50 as antigen-binding factor.