Abstract: A preparation for the treatment and prevention of thromboses and thromboembolic complications is disclosed, which preparation has a content of protein S at a concentration at least 50 times that present in native plasma and is free from C4b-binding protein, optionally in combination with a content of activated protein C.

Abstract: A preparation for the treatment and prevention of thromboses and thromboembolic complications is disclosed, which preparation has a content of protein S at a concentration at least 50 times that present in native plasma and is free from C4b-binding protein, optionally in combination with a content of activated protein C.

Abstract: A method of preserving the electrophoretic properties of lipoproteins in human or animal plasma, plasma fractions or sera, in which the lipoprotein pattern is to be electrophoretically determined, consists in that non-reducing sugars are added to the plasma, plasma fractions or sera, the mixture is lyophilized and the lyophilizate is reconstituted prior to determination.

Abstract: A low-voltage apparatus for demonstrating antigens in body liquids by cross-migration electrophoresis. The apparatus comprises a container filled with a buffer solution, which container has an anode and a cathode chamber and houses a gel-carrying tray. Recesses for receiving antigens and antibodies are provided in the gel and arranged to lie opposite each other in pairs at a distance of between 2 and 5 mm. The gel has a horizontal heat-exchange surface area of at least 50 cm.sup.2. The gel layer reaction zone between the recesses is between 0.5 and 1.5 mm thick and has a cross-sectional area of between 100 and 150 mm.sup.2. The apparatus permits a current passage of 100 milliampere, resulting in a current density of 0.7 milliampere/mm.sup.2 in the gel layer reaction zone.