INTRAVASCULAR HEMAGGLUTINATION

Intravascular hemagglutination studied with the living extracorporeal eye.

An improved diluent for rubella hemagglutination and hemagglutination-inhibition tests.

Rubella hemagglutinating (HA) antigen was prepared in BHK-21 tissue as 5% cell suspensions and from unconcentrated and 20x concentrated infected supernatant fluids. In some instances, unconcentrated fluids were treated with Tween 80 and ether; cell suspensions were treated with ether alone. Preparations were tested for HA activity in dextrose-gelatin-Veronal (DGV) buffer solutions; 0.85% NaCl; ...

Cryopreserved erythrocytes in clinical laboratory hemagglutination and hemagglutination inhibition tests.

Various concentrations of pig, guinea pig, chicken, and turkey erythrocytes (RBCs) were cryopreserved and compared with fresh RBCs in hemagglutination and hemagglutination inhibition tests. Hemagglutination and hemagglutination inhibition titers obtained with cryopreserved or fresh RBCs from the same donor differed by not more than one twofold dilution. RBCs cryopreserved at a concentration of ...

Hemagglutination Induced by Viruses *

Since the original demonstration of the hemagglutination induced by influenza virus,, 118 a number of other important viruses have been reported as causing the agglutination of chicken erythrocytes. Specific agglutination of these red blood cells has been observed with vaccinia virus,21 the virus of Newcastle disease,1 that of fowl plague,17 variola virus,22 and mumps virus.'6 It has also been ...

Hemagglutination - Inhibition Assay For

A sensitive immunoassay procedure for the detection of the thrombopoietic-stimulating factor (TSF) has been developed. This procedure Is similar to the hemagglutination-inhibition (HAl) technique that is available for erythropoietin. For the production of TSF, sheep were made thrombocytopenic by the Injection of antiplatelet serum. TSF from sheep sera was partially purified by column chromatogr...