Analytical validation of an enzyme-linked immunosorbent assay for the quantification of S100A12 in the serum and feces of cats

© 2019 American Society for Veterinary Clinical Pathology.

Bibliographische Detailangaben
Veröffentlicht in:Veterinary clinical pathology. - 1975. - 48(2019), 4 vom: 20. Dez., Seite 754-761
1. Verfasser: Bridges, Cory S (VerfasserIn)
Weitere Verfasser: Grützner, Niels, Suchodolski, Jan S, Steiner, Jörg M, Heilmann, Romy M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Veterinary clinical pathology
Schlagworte:Journal Article Validation Study Calgranulin C chronic enteropathy feline immunoassay Biomarkers S100A12 Protein
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520 |a BACKGROUND: Measuring S100A12 concentrations in serum and feces is a sensitive and specific marker of inflammation, such as seen with chronic gastrointestinal inflammation in people and dogs. Biomarkers of inflammation in cats are currently lacking 
520 |a OBJECTIVES: We aimed to analytically cross-validate the canine S100A12-ELISA for the measurement of S100A12 in feline specimens 
520 |a METHODS: The ELISA was analytically validated by assessing dilutional linearity, spiking/recovery, intra- and inter-assay variability. Reference intervals for serum and fecal feline S100A12 concentrations were calculated using samples from healthy cats, and the short-term biological variation of fecal S100A12 was assessed 
520 |a RESULTS: Observed-to-expected ratios (O/E) for serial dilutions of serum and fecal extracts ranged from 91%-159% (mean, 120%) and 100%-128% (mean, 114%), and for the spiking/recovery method ranged from 106%-263% (mean, 154%) and 52%-171% (mean, 112%). Intra- and inter-assay CV% for serum were ≤5.6% and ≤14.0%, and for fecal extracts were ≤3.8% and ≤19.1%, repsectively. RIs for feline serum and fecal S100A12 concentrations were <43 µg/L and < 20 ng/g, respectively. A mild short-term biologic variation, but large individuality were detected when measuring fecal S100A12 concentrations in healthy cats 
520 |a CONCLUSIONS: The canine S100A12-ELISA is accurate, reproducible, and sufficiently linear and precise for the measurement of S100A12 in feline serum and fecal samples. The use of this assay is a reasonable option for the measurement of S100A12 concentrations in feline specimens and provides a basis for the further evaluation of  S100A12 in cats with gastrointestinal disease. Using a population-based RI for fecal feline S100A12 appears to be of limited value 
650 4 |a Journal Article 
650 4 |a Validation Study 
650 4 |a Calgranulin C 
650 4 |a chronic enteropathy 
650 4 |a feline 
650 4 |a immunoassay 
650 7 |a Biomarkers  |2 NLM 
650 7 |a S100A12 Protein  |2 NLM 
700 1 |a Grützner, Niels  |e verfasserin  |4 aut 
700 1 |a Suchodolski, Jan S  |e verfasserin  |4 aut 
700 1 |a Steiner, Jörg M  |e verfasserin  |4 aut 
700 1 |a Heilmann, Romy M  |e verfasserin  |4 aut 
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773 1 8 |g volume:48  |g year:2019  |g number:4  |g day:20  |g month:12  |g pages:754-761 
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