Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters

Fibroblast growth factor-23 (FGF-23) is a phosphaturic hormone used to monitor chronic kidney disease (CKD) in humans. The aims of this study were (1) to determine the intra- and interassay precision of the FGF-23 concentrations in dogs as measured via the Kainos ELISA FGF-23 kit, (2) to calculate a...

Full description

Bibliographic Details
Main Authors: Sandra Lapsina, Nicole Nagler, Simon Franz Müller, Annette Holtdirk, Tanja Kottmann, Elisabeth Müller, Ingo Schäfer
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/13/20/3202
_version_ 1797574926760148992
author Sandra Lapsina
Nicole Nagler
Simon Franz Müller
Annette Holtdirk
Tanja Kottmann
Elisabeth Müller
Ingo Schäfer
author_facet Sandra Lapsina
Nicole Nagler
Simon Franz Müller
Annette Holtdirk
Tanja Kottmann
Elisabeth Müller
Ingo Schäfer
author_sort Sandra Lapsina
collection DOAJ
description Fibroblast growth factor-23 (FGF-23) is a phosphaturic hormone used to monitor chronic kidney disease (CKD) in humans. The aims of this study were (1) to determine the intra- and interassay precision of the FGF-23 concentrations in dogs as measured via the Kainos ELISA FGF-23 kit, (2) to calculate a reference interval, and (3) to assess the correlation of the FGF-23 concentration with the hematological and biochemical parameters. The coefficient of variation was below 15% for both the intra- and interassay precision, indicating good reproducibility. The reference interval ranged between 95.8 (90% confidence interval: 44.6; 139.2) and 695.1 pg/mL (598.7; 799.1) based on 136 clinically healthy dogs, classified as such according to the information of treating veterinarians as well as the unremarkable results of hematology and biochemistry. The FGF-23 concentration differed significantly between dogs aged <9 and ≥9 years (<i>p</i> = 0.045). Four groups of 10 dogs each were retrospectively formed based on the creatinine concentration classification according to the IRIS staging. Correlation was the strongest for the renal parameters. Statistically significant differences in the FGF-23 concentration were demonstrated between the study groups I and III (<i>p <</i> 0.001), I and IV (<i>p <</i> 0.001), and II and IV (<i>p</i> = 0.005). There was a trend for a rising FGF-23 concentration in older dogs. Due to the wide reference interval, diagnostic cut-offs and/or subject-based FGF-23 reference values in each dog are needed for monitoring and clinical interpretation.
first_indexed 2024-03-10T21:30:01Z
format Article
id doaj.art-1202973b48464b88b9a4765082769fe1
institution Directory Open Access Journal
issn 2076-2615
language English
last_indexed 2024-03-10T21:30:01Z
publishDate 2023-10-01
publisher MDPI AG
record_format Article
series Animals
spelling doaj.art-1202973b48464b88b9a4765082769fe12023-11-19T15:24:35ZengMDPI AGAnimals2076-26152023-10-011320320210.3390/ani13203202Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical ParametersSandra Lapsina0Nicole Nagler1Simon Franz Müller2Annette Holtdirk3Tanja Kottmann4Elisabeth Müller5Ingo Schäfer6LABOKLIN GmbH and Co. KG, Steubenstraße 4, 97688 Bad Kissingen, GermanyLABOKLIN GmbH and Co. KG, Steubenstraße 4, 97688 Bad Kissingen, GermanyLABOKLIN GmbH and Co. KG, Steubenstraße 4, 97688 Bad Kissingen, GermanyDr. MED. Kottmann—Clinical Research Organization, Beverstraße 64, 59077 Hamm, GermanyDr. MED. Kottmann—Clinical Research Organization, Beverstraße 64, 59077 Hamm, GermanyLABOKLIN GmbH and Co. KG, Steubenstraße 4, 97688 Bad Kissingen, GermanyLABOKLIN GmbH and Co. KG, Steubenstraße 4, 97688 Bad Kissingen, GermanyFibroblast growth factor-23 (FGF-23) is a phosphaturic hormone used to monitor chronic kidney disease (CKD) in humans. The aims of this study were (1) to determine the intra- and interassay precision of the FGF-23 concentrations in dogs as measured via the Kainos ELISA FGF-23 kit, (2) to calculate a reference interval, and (3) to assess the correlation of the FGF-23 concentration with the hematological and biochemical parameters. The coefficient of variation was below 15% for both the intra- and interassay precision, indicating good reproducibility. The reference interval ranged between 95.8 (90% confidence interval: 44.6; 139.2) and 695.1 pg/mL (598.7; 799.1) based on 136 clinically healthy dogs, classified as such according to the information of treating veterinarians as well as the unremarkable results of hematology and biochemistry. The FGF-23 concentration differed significantly between dogs aged <9 and ≥9 years (<i>p</i> = 0.045). Four groups of 10 dogs each were retrospectively formed based on the creatinine concentration classification according to the IRIS staging. Correlation was the strongest for the renal parameters. Statistically significant differences in the FGF-23 concentration were demonstrated between the study groups I and III (<i>p <</i> 0.001), I and IV (<i>p <</i> 0.001), and II and IV (<i>p</i> = 0.005). There was a trend for a rising FGF-23 concentration in older dogs. Due to the wide reference interval, diagnostic cut-offs and/or subject-based FGF-23 reference values in each dog are needed for monitoring and clinical interpretation.https://www.mdpi.com/2076-2615/13/20/3202caninechronic kidney diseaserenalclinical pathologyFGF-23
spellingShingle Sandra Lapsina
Nicole Nagler
Simon Franz Müller
Annette Holtdirk
Tanja Kottmann
Elisabeth Müller
Ingo Schäfer
Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters
Animals
canine
chronic kidney disease
renal
clinical pathology
FGF-23
title Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters
title_full Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters
title_fullStr Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters
title_full_unstemmed Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters
title_short Fibroblast Growth Factor-23 (FGF-23) in Dogs—Reference Interval and Correlation with Hematological and Biochemical Parameters
title_sort fibroblast growth factor 23 fgf 23 in dogs reference interval and correlation with hematological and biochemical parameters
topic canine
chronic kidney disease
renal
clinical pathology
FGF-23
url https://www.mdpi.com/2076-2615/13/20/3202
work_keys_str_mv AT sandralapsina fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters
AT nicolenagler fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters
AT simonfranzmuller fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters
AT annetteholtdirk fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters
AT tanjakottmann fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters
AT elisabethmuller fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters
AT ingoschafer fibroblastgrowthfactor23fgf23indogsreferenceintervalandcorrelationwithhematologicalandbiochemicalparameters