Hereditary spastic paraplegia and prominent sensorial involvement: think MAG mutations!

Archive ouverte

Roubertie, Agathe | Charif, Majida | Meyer, Pierre | Manes, Gaël | Meunier, Isabelle | Taieb, Guillaume | Morales, Raul Juntas | Guichet, Agnès | Delettre, Cécile | Sarzi, Emmanuelle | Leboucq, Nicolas | Rivier, Francois | Lenaers, Guy

Edité par CCSD ; Wiley -

International audience. Homozygous mutations in MAG , encoding the myelin‐associated glycoprotein, a transmembrane component of the myelin sheath, have been associated with SPG 75 recessive spastic paraplegia. Here, we report the first patient with two compound heterozygous novel MAG mutations (p.A151V and p.S373R) and early developmental delay with a progressive complex phenotype characterized by spastic paraplegia, peripheral sensorimotor neuropathy, intellectual disability, and sensorial dysfunctions with severe optic atrophy and hearing involvement. Brain imaging showed progressive global cerebellar atrophy. We propose that complex hereditary spastic paraplegia, with axonal and demyelinating polyneuropathy, sensorial impairment and intellectual disability might suggest MAG mutations.

Suggestions

Du même auteur

Optic neuropathy linked to ACAD9 pathogenic variants: a potentially riboflavin-responsive disorder?

Archive ouverte | Gueguen, Naïg | CCSD

International audience. Mitochondrial complex I (CI) deficiencies (OMIM 252010) are the commonest inherited mitochondrial disorders in children. Acyl-CoA dehydrogenase 9 (ACAD9) is a flavoenzyme involved chiefly in ...

AP4 deficiency: A novel form of neurodegeneration with brain iron accumulation?

Archive ouverte | Roubertie, Agathe | CCSD

International audience. Objective To describe the clinico-radiological phenotype of 3 patients harboring a homozygous novel AP4M1 pathogenic mutation.Methods The 3 patients from an inbred family who exhibited early-...

Dominant mutations in mtDNA maintenance gene SSBP1 cause optic atrophy and foveopathy

Archive ouverte | Piro-Mégy, Camille | CCSD

International audience. Mutations in genes encoding components of the mitochondrial DNA (mtDNA) replication machinery cause mtDNA depletion syndromes (MDSs), which associate ocular features with severe neurological ...

Chargement des enrichissements...