ArticleActa paediatrica (Oslo, Norway : 1992)2023
Genetic stratification reveals COL4A variants and spontaneous remission in Egyptian children with proteinuria in the first 2 years of life.
Article in Acta paediatrica (Oslo, Norway : 1992), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 6 citations in OpenAlex.
- Increased risk of kidney failure in patients with genetic kidney disorders.The Journal of clinical investigation · 2024Trial
- Identification of monogenic variants in steroid-resistant and steroid-sensitive nephrotic syndrome.Pediatric nephrology (Berlin, Germany) · 2026Article
- Review
- Whole genome sequencing identifies monogenic disease in 56.1% of families with early-onset steroid-resistant nephrotic syndrome.Human genetics · 2025Article
- [Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2025Review
- Article
- Article
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8 authors at 2 institutions in 2 countries.
Funding
Abstract
aimThe earlier the onset of proteinuria, the higher the incidence of genetic forms. Therefore, we aimed to analyse the spectrum of monogenic proteinuria in Egyptian children presenting at age <2 years.
methodsThe results of 27-gene panel or whole-exome sequencing were correlated with phenotype and treatment outcomes in 54 patients from 45 families.
resultsDisease-causing variants were identified in 29/45 (64.4%) families. Mutations often occurred in three podocytopathy genes: NPHS1, NPHS2 and PLCE1 (19 families). Some showed extrarenal manifestations. Additionally, mutations were detected in 10 other genes, including novel variants of OSGEP, SGPL1 and SYNPO2. COL4A variants phenocopied isolated steroid-resistant nephrotic syndrome (2/29 families, 6.9%). NPHS2 M1L was the single most common genetic finding beyond the age of 3 months (4/18 families, 22.2%). Biopsy results did not correlate with genotypes (n = 30). On renin-angiotensin-aldosterone system antagonists alone, partial and complete remission occurred in 3/24 (12.5%) patients with monogenic proteinuria each, whereas 6.3% (1/16) achieved complete remission on immunosuppression.
conclusionGenotyping is mandatory to avoid biopsies and immunosuppression when proteinuria presents at age <2 years. Even with such a presentation, COL4A genes should be included. NPHS2 M1L was prevalent in Egyptian children (4 months-2 years) with proteinuria, demonstrating precision diagnostic utility.
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