Eisai Company, Limited

Tomiaki Morimoto

Takashi Sawada

Toyohiro Kitamura

Yuzaburo Namba

Isao Miyoshi

Junichi Tohmatsu

Hirokuni Taguchi

Tohru Naraki

Emiko Kishi

Minoru Tohda

Jun-ichi Tohmatsu

Improved method for the measurement of substance comprising simultaneously measuring a plurality of specimens of a substance to be measured by enzyme immunoassay. The process comprises:

Method for measuring substances by enzyme immunoassay

A process for producing an adult T cell leukemia associated antigen is disclosed wherein an adult T cell leukemia associated antigen producing cell is treated with a surfactant. A method for assaying adult T cell leukemia associated antibodies by enzymoimmunoassay, radioimmunoassay or passive hemagglutination is also disclosed. In this method, the adult T cell leukemia associated antigen obtained by treating the adult T cell leukemia associated antigen producing cells with a surfactant is used as the antigen in the assay procedure.

Process for producing adult T cell leukemia associated antigen

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.

Preparation of .alpha.-L antibody, purification of .alpha.-L antigen and

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Fuchu, Japan

Tomiaki Morimoto