ArticleBMC genomics2024
Mucopolysaccharidosis type I: founder effect of the p.P533R mutation in North Africa.
Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Identification of the Genetic Causes of Inherited Diseases in a North African Biobank: Implications for Genetic Diagnosis.Molecular syndromology · 2026Article
- Mucopolysaccharidoses: A biochemical study under limited resources.Molecular genetics and metabolism reports · 2025Article
- Genetic variations in the IDUA gene in Tunisian MPS I families: Identification of a novel microdeletion disrupting substrate binding and structural insights.Molecular genetics and metabolism reports · 2025Article
- Mucopolysaccharidoses types I and IIIA: Diagnosis and identification of novel polymorphisms associated with common mutations in Moroccan patients.Molecular genetics and metabolism reports · 2025Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMucopolysaccharidosis type I is a lysosomal storage disease resulting from a deficiency in alpha-L-iduronidase (IDUA), which causes the accumulation of partially degraded dermatan sulfate and heparan sulfate. This retrospective study, spanning eight years, analyzed data from 45 MPSI patients. The report aimed to explore the potential origin of the p.P533R mutation in the Maghrebin population by constructing a single-nucleotide polymorphism haplotype around the IDUA gene, in order to propose a molecular proof of a founder effect of the MPSI/p.P533R allele. PATIENTS AND
methodsAll of the studied patients were from Libya (2), Mauritania (1) Morocco (21) and Tunisia (21) with first cousins being the most frequent union. The diagnosis of MPSI patients often involves the combination of urinary screening, leukocyte IDUA activity determination, and DNA molecular analysis. In our study, to identify the common p.P533R mutation, we performed both DNA sequencing and tetra-primer ARMS PCR assay. Additionally, Haploview was used to determine the specific haplotype that cosegregates with the p.P533R mutation. Controls were genotyped to ensure that all the SNPs were in Hardy-Weinberg equilibrium.
resultsIn the present report we confirmed the very strong impact of consanguinity on the incidence of MPSI disease. Furthermore, studied families of mixed ancestry shared common and specific haplotype, which was observed in studied populations, suggesting the presence of a founder effect in the North Africa.
conclusionThe p.P533R missense mutation was identified in each patient originated from Libya, Mauritania, Morocco and Tunisia. Furthermore, these MPSI patients exhibited the same IDUA haplotype. The occurrence of a shared AAGGGTG haplotype, among North African populations may be attributed to substantial historical gene exchange between these groups, likely stemming from migration, inter-ethnic marriage, or other forms of interaction throughout history.
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