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2015 ; 10
(7
): e0133580
Nephropedia Template TP
gab.com Text
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English Wikipedia
Potential Predictors of Plasma Fibroblast Growth Factor 23 Concentrations:
Cross-Sectional Analysis in the EPIC-Germany Study
#MMPMID26193703
di Giuseppe R
; Kühn T
; Hirche F
; Buijsse B
; Dierkes J
; Fritsche A
; Kaaks R
; Boeing H
; Stangl GI
; Weikert C
PLoS One
2015[]; 10
(7
): e0133580
PMID26193703
show ga
BACKGROUND: Increased fibroblast growth factor 23 (FGF23), a bone-derived hormone
involved in the regulation of phosphate and vitamin D metabolism, has been
related to the development of cardiovascular disease (CVD) in chronic kidney
disease patients and in the general population. However, what determines higher
FGF23 levels is still unclear. Also, little is known about the influence of diet
on FGF23. The aim of this study was therefore to identify demographic, clinical
and dietary correlates of high FGF23 concentrations in the general population.
METHODS: We performed a cross-sectional analysis within a randomly selected
subcohort of the European Prospective Investigation into Cancer and Nutrition
(EPIC)-Germany comprising 2134 middle-aged men and women. The Human FGF23
(C-Terminal) ELISA kit was used to measure FGF23 in citrate plasma. Dietary data
were obtained at baseline via validated food frequency questionnaires including
up to 148 food items. RESULTS: Multivariable adjusted logistic regression showed
that men had a 66% lower and smokers a 64% higher probability of having higher
FGF23 (? 90 RU/mL) levels compared, respectively, with women and nonsmokers. Each
doubling in parathyroid hormone, creatinine, and C-reactive protein was related
to higher FGF23. Among the dietary factors, each doubling in calcium and total
energy intake was related, respectively, to a 1.75 and to a 4.41 fold increased
probability of having higher FGF23. Finally, each doubling in the intake of iron
was related to an 82% lower probability of having higher FGF23 levels. Results
did not substantially change after exclusion of participants with lower kidney
function. CONCLUSIONS: In middle-aged men and women traditional and
non-traditional CVD risk factors were related to higher FGF23 concentrations.
These findings may contribute to the understanding of the potential mechanisms
linking increased FGF23 to increased CVD risk.