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:
Aug. 15, 2016

Filed:

Oct. 22, 2014
Applicant:

Arkray, Inc., Kyoto, JP;

Inventor:

Satoshi Yonehara, Kyoto, JP;

Assignee:

ARKRAY, Inc., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q 1/54 (2005.12); C12Q 1/26 (2005.12); G01N 33/72 (2005.12); C12Q 1/37 (2005.12);
U.S. Cl.
CPC ...
C12Q 1/26 (2012.12); C12Q 1/37 (2012.12); G01N 33/723 (2012.12); G01N 33/725 (2012.12);
Abstract

A method of determining glycated hemoglobin is provided, by which a ratio of the glycated hemoglobin in a sample can be determined accurately and easily. The ratio of glycated hemoglobin can be determined by degrading a glycated hemoglobin in a whole blood sample selectively with a protease to give a glycated hemoglobin degradation product; causing a redox reaction between a glycation site of the glycated hemoglobin degradation product and a fructosyl amino acid oxidoreductase; and determining this redox reaction. Further, as shown in FIG.in a whole blood sample, there is a correlation between the ratio of the glycated hemoglobin determined by this method and an HbA1c concentration. Thus, without determining the glycated α-amino group as a characteristic structure of HbA1c, an amount of HbA1c can be determined accurately and easily from the determined ratio of the glycated hemoglobin.


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