Biological variation of intact fibroblast growth factor 23 measured on a fully automated chemiluminescent platform

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F19%3A00077963" target="_blank" >RIV/00023001:_____/19:00077963 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11120/19:43917821

Result on the web

<a href="https://journals.sagepub.com/doi/abs/10.1177/0004563219826161" target="_blank" >https://journals.sagepub.com/doi/abs/10.1177/0004563219826161</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0004563219826161" target="_blank" >10.1177/0004563219826161</a>

Result language

angličtina

Original language name

Biological variation of intact fibroblast growth factor 23 measured on a fully automated chemiluminescent platform

Original language description

Background Fibroblast growth factor 23 (FGF23), a potent regulator of phosphate and vitamin D metabolism, is a new biomarker of kidney, bone and cardiovascular disorders. The aim of this study was to assess the biological variation of intact fibroblast growth factor 23 (iFGF23). Methods The within-subject (CVI) and between-subject (CVG) biological variations were assessed in 14 healthy volunteers in a six-week protocol (seven samples). Imprecision (CVA) was assessed by duplicate measurements and the EP15-A2 protocol. Intact FGF23 was measured using a fully automated chemiluminescent assay (Liaison XL, DiaSorin S.p.A., Saluggia, Italy). Two methods with different sensitivities to non-Gaussian distribution were used to estimate the CVI, SD ANOVA and CV ANOVA methods. We calculated the index of individuality (II) and reference change values. Results Depending on the statistical method used, the CVI and CVA were 14.2 and 3.7% (SD ANOVA) or 12.5 and 3.9% (CV ANOVA), respectively. The corresponding reference change values were 40.5 and 36.4%, respectively. The CVG was 13.4% (SD ANOVA was the only option), and the total imprecision (EP15-A2) was less than 7%. Conclusions The measurement of iFGF23 demonstrated a CVA less than 4% during the experimental estimation of biological variation. The total imprecision was less than 7% in the EP15-A2 experiment. The CVI values of iFGF23 in healthy persons were 14.2 (SD ANOVA) and 12.5% (CV ANOVA), respectively. The CVG was 13.4%, and the resulting index of individuality was 1.06. The reference change value was less than 41%. The availability of this automated assay for iFGF23 with well-characterized biological variation data delivers opportunities for improved availability and application of this assay clinically.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10608 - Biochemistry and molecular biology

Project

—

Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Annals of clinical biochemistry

ISSN

0004-5632

e-ISSN

—

Volume of the periodical

56

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

381-386

UT code for WoS article

000468199000008

EID of the result in the Scopus database

2-s2.0-85062617840