Haptoglobin Assay

Reactivlab Limited (2012) Haptoglobin Assay. .

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Publisher's URL: http://worldwide.espacenet.com/publicationDetails/biblio?CC=WO&NR=2012085497A1&KC=A1&FT=D


The invention provides an assay method for determining a level of haptoglobin in a sample comprising the steps of: (i) mixing haemoglobin with the sample to be assayed so as to form a haptoglobin-haemoglobin complex with haptoglobin present in the sample; (ii) contacting the product of step (i) with reagents for generating hydrogen peroxide and one or more chromogens which undergo a spectroscopically detectable change when peroxidase activity is present, in the presence of a buffer, under conditions in which hydrogen peroxide is generated from said reagents and forms a substrate for the peroxidise activity of the haptoglobin-haemoglobin complex present, and wherein the pH of the buffer is within a range which is sufficiently low that the peroxidise activity of any uncomplexed haemoglobin is substantially suppressed but sufficiently high that hydrogen peroxide generation occurs; (iii) determining the peroxidase activity of the haptoglobin-haemoglobin complex by measuring the change in an optical property of the reaction mixture; and(iv) correlating the level of peroxidise activity of the haptoglobin-haemoglobin complex with the amount of haptoglobin in the sample. A kit for use in such a method is also provided.

Item Type:Patents
Additional Information:Publication number: WO2012085497 A1; Application number: PCT/GB2011/001731
Glasgow Author(s) Enlighten ID:Eckersall, Professor David and Mcculloch, Miss Eilidh
Authors: Docherty, S., Eckersall, P., and Mcculloch, E.
College/School:College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine

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