Publications by authors named "Pascale Marcorelle"

Background: Malformations of cortical development (MCDs) have been reported in a subset of patients with pathogenic heterozygous variants in or , genes which encode for subunits of the N-methyl-D-aspartate receptor (NMDAR). The aim of this study was to further define the phenotypic spectrum of NMDAR-related MCDs.

Methods: We report the clinical, radiological and molecular features of 7 new patients and review data on 18 previously reported individuals with NMDAR-related MCDs.

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Article Synopsis
  • Congenital nemaline myopathies are rare muscle disorders marked by weakness and rod-like inclusions in muscle fibers, often leading to serious complications.
  • The study utilized next-generation sequencing to identify pathogenic variants in the troponin T gene in three patients, all of whom exhibited similar severe symptoms like muscle hypotonia and progressive respiratory failure.
  • Genetic analysis revealed various mutations resulting in the complete absence of the troponin T protein, supporting the idea that these recessive mutations lead to a consistent clinical phenotype among affected individuals.
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X-linked myotubular myopathy (XLMTM), a severe congenital myopathy, is caused by mutations in the MTM1 gene located on the X chromosome. A majority of affected males die in the early postnatal period, whereas female carriers are believed to be usually asymptomatic. Nevertheless, several affected females have been reported.

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Rare lethal disease gene identification remains a challenging issue, but it is amenable to new techniques in high-throughput sequencing (HTS). Cerebral proliferative glomeruloid vasculopathy (PGV), or Fowler syndrome, is a severe autosomal recessive disorder of brain angiogenesis, resulting in abnormally thickened and aberrant perforating vessels leading to hydranencephaly. In three multiplex consanguineous families, genome-wide SNP analysis identified a locus of 14 Mb on chromosome 14.

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