Haptoglobin assay

C - Chemistry – Metallurgy – 12 – Q

Patent

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Details

C12Q 1/28 (2006.01) G01N 33/52 (2006.01) G01N 33/53 (2006.01) G01N 33/72 (2006.01)

Patent

CA 2309838

The present invention relates to a haptoglobin assay of the type wherein the level of haptoglobin in a sample to be tested is determined by measuring the peroxidase activity of a haptoglobin/haemoglobin complex. The assay employs at least one reagent for reducing a peroxidase effect due to any albumin or any other protein(s) present in the sample. The reagent may be selected from a) a reducing agent effective against disulphide bonds; b) a protein binding inhibitor and/or c) a chaotropic agent. The present invention also relates to kits suitable for use in such an assay.

L'invention concerne un dosage d'haptoglobine du type de ceux dans lequel le taux d'haptoglobine dans un échantillon à tester est déterminé par la mesure de l'activité de la peroxydase d'un complexe haptoglobine/hémoglobine. Le dosage utilise au moins un réactif permettant de réduire l'effet de la peroxydase en raison de la présence dans l'échantillon d'albumine ou de toute autre protéine. Le réactif peut être sélectionné dans a) un agent réducteur efficace contre les liaisons disulfure; b) un inhibiteur de liaisons protéiques et/ou c) un agent chaotropique. L'invention concerne aussi des ensembles se prêtant à une utilisation dans ce dosage.

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