Eisai Company, Limited

Emiko Kishi

Tomiaki Morimoto

Jun-ichi Tohmatsu

Process for the preparation of a novel .alpha.-L antibody comprising immunizing an animal other than a human with the .alpha.-L antigen or .alpha.-L antigen/.alpha.-L antibody complex, and collecting antiserum from the animal; a method for the purification of .alpha.-L antigen comprising subjecting the material containing the .alpha.-L antigen to the density gradient centrifugation, and collecting a fraction having a buoyant density less than 1.1 g/ml; a reagent comprising .alpha.-L antigen; and a reagent comprising .alpha.-L antibody for detection of the .alpha.-L antigen and the .alpha.-L antibody, such detection being useful for the diagnosis of liver diseases and examination of the blood for blood transfusion.

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Ohmiya, Japan

Emiko Kishi