“…At the same time, the inferior vena cava was clamped between the dia phragm and the right heart. Two minutes later, blood (4-5 ml) was taken from the hepatic venous sinus [for details, see Schmutzler, H ahn, Seseke and Bernauer, 1966], Anaphylatoxin tests. AT was prepared by adding dextran (10 t 9 Oma-1, Knoll AG, Ludwigshafen, mean molecular weight: 292,000) to fresh rat serum (5 mg/5 ml) and incubat ing the mixture 1 h at 37°G [Giertz and Hahn, 1961].…”