Article (Scientific journals)
Indoxyl Sulfate Contributes to Impaired Height Velocity in (Pre)School Children.
Snauwaert, Evelien; De Buyser, Stefanie; Van Biesen, Wim et al.
2024In Kidney International Reports, 9 (6), p. 1674-1683
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Keywords :
child; chronic kidney disease; dialysis; growth failure; inflammation; uremic toxins
Abstract :
[en] INTRODUCTION: Growth failure is considered the most important clinical outcome parameter in childhood chronic kidney disease (CKD). Central to the pathophysiology of growth failure is the presence of a chronic proinflammatory state, presumed to be partly driven by the accumulation of uremic toxins. In this study, we assessed the association between uremic toxin concentrations and height velocity in a longitudinal multicentric prospective pediatric CKD cohort of (pre)school-aged children and children during pubertal stages. METHODS: In a prospective, multicentric observational study, a selection of uremic toxin levels of children (aged 0-18 years) with CKD stage 1 to 5D was assessed every 3 months (maximum 2 years) along with clinical growth parameters. Linear mixed models with a random slope for age and a random intercept for child were fitted for height (in cm and SD scores [SDS]). A piecewise linear association between age and height was assumed. RESULTS: Data analysis included data from 560 visits of 81 children (median age 9.4 years; 2/3 male). In (pre)school aged children (aged 2-12 years), a 10% increase in concurrent indoxyl sulfate (IxS, total) concentration resulted in an estimated mean height velocity decrease of 0.002 SDS/yr (P < 0.05), given that CKD stage, growth hormone (GH), bicarbonate concentration, and dietary protein intake were held constant. No significant association with height velocity was found in children during pubertal stages (aged >12 years). CONCLUSION: The present study demonstrated that, especially IxS contributes to a lower height velocity in (pre)school children, whereas we could not find a role for uremic toxins with height velocity during pubertal stages.
Disciplines :
Pediatrics
Urology & nephrology
Author, co-author :
Snauwaert, Evelien;  Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium.
De Buyser, Stefanie;  Biostatistics Unit, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
Van Biesen, Wim;  Department of Nephrology, Ghent University Hospital, Ghent, Belgium.
Raes, Ann;  Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium.
Glorieux, Griet;  Department of Nephrology, Ghent University Hospital, Ghent, Belgium.
Collard, Laure ;  Université de Liège - ULiège > Département des sciences cliniques > Médecine générale ; Department of Pediatric Nephrology, CHC Liège, Ghent, Belgium.
Van Hoeck, Koen;  Department of Pediatric Nephrology, Antwerp University Hospital, Antwerp, Belgium.
Van Dyck, Maria;  Department of Pediatric Nephrology, University Hospital Leuven, Leuven, Belgium.
Godefroid, Nathalie;  Department of Pediatric Nephrology, University Hospital Saint-Luc, Brussels, Belgium.
Walle, Johan Vande;  Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium.
Eloot, Sunny;  Department of Nephrology, Ghent University Hospital, Ghent, Belgium.
Language :
English
Title :
Indoxyl Sulfate Contributes to Impaired Height Velocity in (Pre)School Children.
Publication date :
June 2024
Journal title :
Kidney International Reports
eISSN :
2468-0249
Publisher :
Elsevier, Philadelphia, Us pa
Volume :
9
Issue :
6
Pages :
1674-1683
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
© 2024 International Society of Nephrology. Published by Elsevier Inc.
Available on ORBi :
since 20 February 2025

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