Evidence map›Paper›PMID 41839678›Full record

ArticleJournal, genetic engineering & biotechnology2026

Comprehensive gene profiling by Next-Generation sequencing in a cohort of Egyptian pediatric Atypical HUS.

Fatina I Fadel, Khalda Amr, Rasha EssamEldin Galal, Ghada El-Kamah, Mohamed A Abdel Mawla, Amr Mohamed Salem, Mohamed S Thabet, Shorouk A Othman

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Article in Journal, genetic engineering & biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Fatina I FadelPediatric Nephrology Unit, Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt.
Khalda AmrDivision of Medical Molecular Genetics, National Research Center, Cairo, Egypt.
Rasha EssamEldin GalalPediatric Nephrology Unit, Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt.
Ghada El-KamahDivision of Clinical Genetics, National Research Center, Cairo, Egypt.
Mohamed A Abdel MawlaPediatric Department, National Research Center, Cairo, Egypt.
Amr Mohamed SalemPediatric Nephrology Unit, Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt.
Mohamed S ThabetPediatric Nephrology Unit, Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt.
Shorouk A OthmanPediatric Nephrology Unit, Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt. Electronic address: shorouk.abdelrahman@kasralainy.edu.eg.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAtypical hemolytic uremic syndrome (aHUS) is a rare, severe condition in children, resulting from uncontrolled complement activation caused by genetic factors or autoantibodies; it usually has a poor prognosis. Early identification of the underlying genetic variants is crucial for guiding management and predicting outcomes. This study aimed to identify gene mutations in Egyptian children with aHUS at an early stage. This would enable the selection of the most appropriate treatment options and help prevent adverse outcomes for the patients.

methodsThis is an observational cohort study, included 21 children with a clinical diagnosis of aHUS who presented to the Pediatric Nephrology Unit and general wards of Cairo University Children's Hospital between June 2022 and January 2024 with a follow-up duration of 12 months (median). All patients underwent whole exome sequencing (WES). Clinical data, treatment regimens, and outcomes were recorded and analyzed.

resultAmong the 21 patients, around one third had negative WES results while 28.57 % showed CFHR 3/CFHR1 deletion. Most patients progressed to chronic kidney disease (52.4 %), while 28.6 % recovered their kidney functions following plasmapheresis. A significant association was observed between WES category and disease relapse (p = 0.021); patients with CFHR3 deletion, CFHR5 deletion, or MMUT variant developed at least one attack of relapse.

conclusionsEgyptian children with aHUS demonstrate marked genetic heterogeneity. A substantial proportion lacked identifiable pathogenic variants, highlighting the complexity of the disease. CFHR3/CFHR1 deletion was the most frequent finding. Genetic profiling remains crucial for anticipating relapse risk and guiding therapeutic decisions, particularly in resource-limited settings.

Indexed as

aHUSCKDComplement dysregulationPlasmapheresisWhole exome sequencing

Identifiers

PMID41839678
PMCPMC12804103

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