The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 13, 2004

Filed:

Aug. 31, 2001
Applicant:
Inventors:

Tetsuo Tsuji, Nara, JP;

Ken Inouye, Hyogo, JP;

Akira Yamauchi, Osaka, JP;

Masao Kono, Osaka, JP;

Ken'ichi Igano, Nara, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/353 ; G01N 3/3567 ; A61K 3/9395 ; A61K 3/940 ; C07K 1/600 ; C07K 1/700 ;
U.S. Cl.
CPC ...
G01N 3/353 ; G01N 3/3567 ; A61K 3/9395 ; A61K 3/940 ; C07K 1/600 ; C07K 1/700 ;
Abstract

A hybridoma producing a monoclonal antibody recognizing the C-terminus of human brain natriuretic peptide (hBNP) was cultivated in a medium or the abdominal cavity of a mouse to recover the monoclonal antibody from the medium or ascites accumulated in the abdominal cavity. An immunoassay for hBNP was established using the monoclonal antibody. The immunoassay for hBNP of the invention is so sensitive that the minimum detection limit is 1 pg/ml and can therefore determine the hBNP level in blood plasma directly, without the extraction of hBNP from blood plasma. It is useful for diagnosing diseases such as hypertension and the like, and states of the heart, kidney, and the like by using the increase/decrease of the hBNP level as an index.


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