Performance of an automated immunoturbidimetric assay for bovine serum amyloid A
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Performance of an automated immunoturbidimetric assay for bovine serum amyloid A. / Nielsen, Lise N.; Petersen, Mette B.; Capion, Nynne; Lundsgaard, Jo F.H.; Jensen, Asger L.
In: Veterinary Clinical Pathology, Vol. 53, No. 2, 2024, p. 229-233.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Performance of an automated immunoturbidimetric assay for bovine serum amyloid A
AU - Nielsen, Lise N.
AU - Petersen, Mette B.
AU - Capion, Nynne
AU - Lundsgaard, Jo F.H.
AU - Jensen, Asger L.
N1 - Publisher Copyright: © 2024 The Authors. Veterinary Clinical Pathology published by Wiley Periodicals LLC on behalf of American Society for Veterinary Clinical Pathology.
PY - 2024
Y1 - 2024
N2 - Background: Acute phase proteins are a group of vital constituents of the innate immune system, which may also serve as circulatory biomarkers of inflammation. The major acute phase protein serum amyloid A (SAA) is a reliable and sensitive biomarker in cows, allowing for rapid detection of inflammatory disease. A multispecies automated immunoturbidimetric assay (VET-SAA, Eiken) has been validated for horses, dogs, and cats, and it has been used to measure SAA concentrations in bovine samples. Objectives: The aim of the present study was to perform an analytical validation of the VET-SAA immunoturbidometric assay based on monoclonal antihuman SAA antibodies for the measurement of SAA in clinical samples from cows. Methods and Results: The validation included an assessment of imprecision, inaccuracy, and detection limit, as well as an evaluation of the overlap performance, using banked serum from healthy and sick cows with or without inflammatory disease. Intra- and interassay variation ranged from 0.91% to 2.9% and 2.5% to 5.8%, respectively. The assay was performed with acceptable accuracy within a clinically relevant range of SAA, although minor signs of inaccuracy were detected. Overlap performance was acceptable, with the VET-SAA assay able to differentiate between healthy cows and cows with inflammatory and noninflammatory conditions. The automated VET-SAA assay is considered acceptable for the measurement of SAA in cows.
AB - Background: Acute phase proteins are a group of vital constituents of the innate immune system, which may also serve as circulatory biomarkers of inflammation. The major acute phase protein serum amyloid A (SAA) is a reliable and sensitive biomarker in cows, allowing for rapid detection of inflammatory disease. A multispecies automated immunoturbidimetric assay (VET-SAA, Eiken) has been validated for horses, dogs, and cats, and it has been used to measure SAA concentrations in bovine samples. Objectives: The aim of the present study was to perform an analytical validation of the VET-SAA immunoturbidometric assay based on monoclonal antihuman SAA antibodies for the measurement of SAA in clinical samples from cows. Methods and Results: The validation included an assessment of imprecision, inaccuracy, and detection limit, as well as an evaluation of the overlap performance, using banked serum from healthy and sick cows with or without inflammatory disease. Intra- and interassay variation ranged from 0.91% to 2.9% and 2.5% to 5.8%, respectively. The assay was performed with acceptable accuracy within a clinically relevant range of SAA, although minor signs of inaccuracy were detected. Overlap performance was acceptable, with the VET-SAA assay able to differentiate between healthy cows and cows with inflammatory and noninflammatory conditions. The automated VET-SAA assay is considered acceptable for the measurement of SAA in cows.
KW - acute phase response
KW - biomarker
KW - cattle
KW - inflammation
U2 - 10.1111/vcp.13355
DO - 10.1111/vcp.13355
M3 - Journal article
AN - SCOPUS:85194932038
VL - 53
SP - 229
EP - 233
JO - Veterinary Clinical Pathology
JF - Veterinary Clinical Pathology
SN - 0275-6382
IS - 2
ER -
ID: 394979816