FIELD: biotechnology.
SUBSTANCE: group of inventions relates to turbidimetric immunoassay. A method for in vitro measurement of the presence of calprotectin in a biological sample from a patient, using turbidimetric immunoassay enhanced with latex particles, is disclosed, including stages of collection of predetermined amount of the specified biological sample; extraction of the specified biological sample in predetermined amount of an aqueous organic buffer, and homogenization of a matrix of the specified biological sample, followed by the removal of any material in the form of particles to obtain a sample solution with the presence of solubilized heterodimeric calprotectin; mixing of certain amount of the resulting solution with certain amount of a reagent containing nanoparticles having immobilized two or more monoclonal antibodies or their fragments specifically binding calprotectin to obtain a particle-bound antibody-antigen reaction for calprotectin, which is present as heterodimer S100A8 and S100A9; incubation of the mixture; obtaining optical properties of the mixture, and determination of a signal indicative for calprotectin content based on optical properties of the mixture; establishment of connection of the specified content to the calibrated control, and assessment of a clinical condition of the specified patient based on the measured presence of calprotectin in the specified biological sample. A test kit for implementation of the above-described method is also disclosed.
EFFECT: group of inventions provides the advantage that used reagents create an environment, which is physiologically similar to the environment, into which granulocytes release their physiological calprotectin.
12 cl, 6 dwg, 5 tbl, 4 ex
Title | Year | Author | Number |
---|---|---|---|
BIOMARKERS FOR DIAGNOSING IMPLANT-RELATED RISK OF REPEATED IMPLANT SURGERY DUE TO ASEPTIC LOOSENING | 2018 |
|
RU2757771C2 |
METHOD FOR BUBBLE ADSORPTION REDUCTION | 2012 |
|
RU2629811C2 |
METHODS FOR PATIENT'S RESPONSE TO HOSPITAL INFECTION TEST AND FORECASTING OF DEVELOPING SEPSIS SYNDROME | 2010 |
|
RU2525707C2 |
METHOD OF MULTYANALITE IMMUNOASSAY WITH USE OF MICROPARTICLES | 2007 |
|
RU2339953C1 |
METHODS FOR DETERMINING PATIENT'S SUSCEPTIBILITY TO NOSOCOMIAL INFECTION AND PREDICTING DEVELOPMENT OF A SEPTIC SYNDROME | 2014 |
|
RU2663724C2 |
PHARMACEUTICAL COMPOSITION CONTAINING APL TYPE PEPTIDE | 2018 |
|
RU2778402C2 |
METHOD FOR HIGH-EFFICIENCY COLLECTION OF FUNCTIONAL CELLS IN VIVO | 2009 |
|
RU2571230C2 |
ANALYSIS OF MYCOBACTERIUM TUBERCULOSIS COMPLEX IMMUNODETECTION | 2008 |
|
RU2473095C2 |
METHOD OF ASSAY OF HOMOCYSTEINE IN SAMPLE AND A SET FOR ITS REALIZATION | 1993 |
|
RU2121001C1 |
METHOD FOR DIAGNOSING INFLAMMATION IN BLADDER WALL | 2024 |
|
RU2831883C1 |
Authors
Dates
2022-09-27—Published
2018-05-09—Filed