Publications by authors named "C Schanen"

Rapid and accurate diagnosis of SARS-CoV-2 infection is essential for the management of the COVID-19 outbreak. RT-LAMP LoopDeetect COVID-19 (LoopDeescience, France) is a rapid molecular diagnostic tool which operates with the LoopDeelab (LoopDeescience, France) device. RAPID COVID is a prospective double-blind research protocol which was conducted to evaluate the concordance between Loopdeetect COVID-19 and RT-PCR Allplex 2019 n-Cov (Seegene, Korea).

View Article and Find Full Text PDF

Background: MEGDHEL is an autosomal recessive syndrome defined as 3-MEthylGlutaconic aciduria (3-MGA) with Deafness, Hepatopathy, Encephalopathy, and Leigh-like syndrome on magnetic resonance imaging, due to mutations in the SERAC1 (Serine Active Site Containing 1) gene, which plays a role in the mitochondrial cardiolipin metabolism.

Methods: We report the case of a young patient who presented with a convulsive encephalopathy, 3-methylglutaconic aciduria, deafness, and bilateral T2 hypersignals of the putamen and the thalami, who passed away at 8 years of age.

Results: Analysis of nuclear genes using an ampliSeq targeted custom panel disclosed two compound heterozygous variants in the SERAC1 gene: a nonsense substitution in exon 4, c.

View Article and Find Full Text PDF

Purpose: To ascertain the cause of mortality and incidence of sudden unexpected death in epilepsy (SUDEP) in patients with supernumerary isodicentric chromosome 15 (idic15).

Methods: Cases were obtained from those reported to the Dup15q Alliance (www.dup15q.

View Article and Find Full Text PDF

Objective: Seizures are common in individuals with duplications of chromosome 15q11.2-q13 (Dup15q). The goal of this study was to examine the phenotypes and treatments of seizures in Dup15q in a large population.

View Article and Find Full Text PDF

The objective of our study was to characterize the influence of multiple mutations in the MECP2 gene in a cohort of individuals with Rett syndrome. Further analysis demonstrated that nearly all resulted from de novo in cis mutations, where the disease severity was indistinguishable from single mutations. Our methods involved enrolling participants in the RTT Natural History Study (NHS).

View Article and Find Full Text PDF