The effect of heparin upon the binding of the third component of complement (C3) to PNH red cells in vitro and their subsequent hemolysis is described. Heparin, in increasing concentrations, progressively inhibits membrane C3 fixation and hemolysis when the classic complement pathway is activated by anti-red cell antibodies. Heparin has a biphasic effect upon membrane C3 fixation and hemolysis ...

The purpose of this study was to examine the molecular parameters necessary for initiation of complement fixation by IgM proteins. To determine why some IgM molecules are capable of complement fixation while others are not, several different Waldenström IgM proteins were examined for their ability to fix total hemolytic complement in the CH(50) assay. Subsequently, the C1 fixing ability of a 56...

  Background: Ligament reconstruction is a common procedure in orthopedic surgery. Although several popular techniques are currently in use, new methods are proposed for secure fixation of the tendon graft into the bone tunnel. Purposes: We sought to introduce our new technique of Bashti bone plug for fixation of soft tissue graft in anterior cruciate ligament (ACL) reconstruction and to compar...

Schmidt, Jean M. (State University of Iowa, Iowa City) and Robert L. Richardson. Serology of Bacterionema matruchotii. J. Bacteriol. 83:584-589. 1962.-Serological relationships of Bacterionema matruchotii were studied by means of the complement-fixation reaction. A common complement-fixing antigen was demonstrated in 37 strains of this organism. Serological relationships to species in the gener...

In the course of studying the properties of several viruses pathogenic for suckling mice (Stanley and Hayes, 1950; Stanley et al., 1951), it was found necessary to attempt to purify certain strains to determine if virus, free from large amounts of non-virus protein, could be used in haemagglutination or complement-fixation tests. This paper describes the purification procedures adopted with thr...

Electron microscopy, immune electron microscopy and complement fixation as methods of detecting rotavirus in the stools of young children with gastroenteritis were compared in a blind study during the winter of 1975-6. Complement fixation was the simplest to perform, was as sensitive as the other two, and allowed a quantitative measurement of viral excretion. Absorption of faecal extracts with ...

Background: Conventional fixation methods of posterior wall acetabular fractures feature the use of plating and lagscrews. However, fixation of posterior wall fractures with buttress plating alone offers potential advantages by avoidingthe hardware complications related to hardware placement through the wall fragment. The purpose of this study wasto examine if buttress plating...