Relevance of repeated analyses of albuminuria and glomerular filtration rate in African children with sickle cell anaemia.
APOL1
HMOX1
children
persistent kidney disease
sickle cell disease
Journal
British journal of haematology
ISSN: 1365-2141
Titre abrégé: Br J Haematol
Pays: England
ID NLM: 0372544
Informations de publication
Date de publication:
27 Jun 2024
27 Jun 2024
Historique:
received:
23
03
2024
accepted:
09
06
2024
medline:
27
6
2024
pubmed:
27
6
2024
entrez:
27
6
2024
Statut:
aheadofprint
Résumé
Glomerular hyperfiltration and albuminuria are frequent kidney abnormalities in children with sickle cell anaemia (SCA). However, little is known about their persistence in African SCA children. This prospective study included 600 steady-state SCA children aged 2-18 years from the Democratic Republic of Congo. Participants were genotyped for apolipoprotein L1 (APOL1) risk variants (RVs) and haem oxygenase-1 (HMOX1) GT-dinucleotide repeats. Kidney abnormalities were defined as albuminuria, hyperfiltration or decreased estimated creatinine-based glomerular filtration rate (eGFRcr). At baseline, 247/600 (41.2%) participants presented with kidney abnormalities: 82/592 (13.8%) with albuminuria, 184/587 (31.3%) with hyperfiltration and 15/587 (2.6%) with decreased eGFRcr. After a median follow-up of 5 months, repeated testing was performed in 180/247 (72.9%) available participants. Persistent hyperfiltration and persistent albuminuria (PA) were present in 29.2% (38/130) and 39.7% (23/58) respectively. eGFR normalized in all participants with a baseline decreased eGFRcr. Haemoglobinuria (p = 0.017) and male gender (p = 0.047) were significantly associated with PA and persistent hyperfiltration respectively. APOL1 RVs (G1G1/G2G2/G1G2) were borderline associated with PA (p = 0.075), while HMOX1 long repeat was not associated with any persistent kidney abnormality. This study reveals that a single screening can overestimate the rate of kidney abnormalities in children with SCA and could lead to overtreatment.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : VLIR-UOS
Organisme : Flemish Inter-University Council
Organisme : Directorate-General for Development Cooperation and Humanitarian Aid
Organisme : European Research Council Consolidator
Informations de copyright
© 2024 British Society for Haematology and John Wiley & Sons Ltd.
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