Anallergische Sera

Sera Tr

Leukocyte antibodies in human sera and in immune rabbit sera.

Fractionation of Sera

Sephacryl S-300 has been compared with Sephadex G-200 in the fractionation of sera for the detection of rubella-specific IgM. No difference in sensitivity was found with sera that had low titres of rubella-specific IgM. Sephadex G-200 was apparently more sensitive with some sera which had high titres of rubella-specific IgM due to the contribution of rubella-specific IgA. Sephacryl S-300 offers...

Anti- Idiotype Sera Raised

Present concepts of the maturation of a B-lymphocytic clone involve progressive changes in cellular morphology and mode of immunoglobulin (Ig) production. The ancestral small lymphocyte synthesizes Ig for insertion into its plasma membrane, while those of its descendants destined to produce humoral antibody show first a superimposed synthesis of Ig for export and finally a heavy export with lit...

Antiproteins in Horse Sera

The antiprotein in an antipneumococcus horse serum resulting from intravenous injections of infected pleural exudate showed a precipitin type of reaction with pneumococcus nucleoprotein rather than the antitoxin type of response.