cold agglutinins are of unique relevance in cardiac surgerybecause of the use of hypothermic cardiopulmonary bypass (cpb). cold autoimmune diseases are defined by the presence of abnormal circulating proteins (usually igm or iga antibodies) that agglutinate in response to a decrease in body temperature. these disorders include cryoglobulinemia and cold hemagglutinin disease.immunoglobulin m aut...

Arctic foxes (Vulpes lagopus) are susceptible to smooth Brucella (s-Brucella) infection and may be exposed such bacteria through the consumption of infected marine mammals, as implied by finding s-Brucella antibodies in polar bears (Ursus maritimus). Svalbard have not previously been investigated for s-Brucella antibodies, but antibodies detected Iceland, Alaska (USA) Russia...

In an attempt to simplify the manufacture of an efficacious antimeningococcus serum an experimental study has been made of a number of sera produced with a few or with single strains of meningococcus, the therapeutic polyvalent serum produced at The Rockefeller Institute with more than 50 strains being used as a standard of comparison. It was found that horses injected with an antigen limited t...

A review of recently published work is presented on the nature of the agglutination of human peripheral lymphocytes and cultured lymphoblastoid cells by the hemolymph agglutinins of two arachnoids, the Horsefoot (Limulus polyphemus), alias Horseshoe Crab, and the Saharan Scorpion (Androctonus australis). Microagglutination techniques were utilized to study the specificity of the whole serum and...

A comparison of the appearance of the agglutinins for Bacillus abortus in the blood of new-born calves with the first appearance of globulins in the same blood following the ingestion of colostrum indicates that the agglutinins are associated with the globulins. These observations are supported by the removal of the agglutinins from serum or colostrum with concentrations of sodium sulfate which...

Abstract Brucella spp. are facultative intracellular bacterial pathogens that have the ability to survive and multiply in professional nonprofessional phagocytes. Successful invasion chronic persistence indicate manipulates various host cellular processes create a replication permissive niche. The essential mechanisms factors support of remain poorly understood. RNA interference (RNAi) is poten...

1. Certain bacilli within one strain may lose their flagella and become non-motile. 2. The change in serological behavior associated with the change in motility indicates that the flagella possess an individual antigenic property. 3. Flagella can be separated from the bodies of the bacilli. 4. A strictly flagellar antiserum can be produced by the injection of a flagellar suspension. 5. This dir...

Serum agglutinins of chick and pigeon cells are predominantly immunoglobulin M and can be inactivated by 2 mercaptoethanol. 2 Mercaptoethanol is more effective than strong suspensions of red cells in removing the agglutinins of indicator cells from sera being prepared for HAI tests. In rubella HAI tests from a dilution of 1 to 10 dilute 2 mercaptoethanol offer a convenient method of removing ag...