Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Genetic and clinical vari… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Genetic and clinical variations in a Norwegian sample diagnosed with Rett syndrome

Artikel i vetenskaplig tidskrift
Författare M. W. Henriksen
H. Breck
Y. Sejersted
T. Diseth
S. von Tetzchner
B. Paus
Ola H. Skjeldal
Publicerad i Brain & Development
Volym 42
Nummer/häfte 7
Sidor 484-495
ISSN 0387-7604
Publiceringsår 2020
Publicerad vid Gillbergcentrum
Sidor 484-495
Språk en
Länkar dx.doi.org/10.1016/j.braindev.2020....
Ämnesord Rett syndrome, MECP2, Genetic variation, Clinical phenotype, Exome, sequencing, Epilepsy, mutations, phenotype, epilepsy, patient, disorders, variants, deletion, criteria, mecp2, foxg1, Neurosciences & Neurology, Pediatrics
Ämneskategorier Neurovetenskaper

Sammanfattning

Background and purpose: Rett syndrome (RTT) is a neurodevelopmental disorder mainly caused by mutations in MECP2. The diagnostic criteria of RTT are clinical; mutations in MECP2 are neither diagnostic nor necessary, and a mutation in another gene does not exclude RTT. We attempted to correlate genotype and phenotype to see if there are significant clinical associations. Methods: All available females diagnosed with RTT in Norway were invited to the study. Parents were interviewed, the girl or woman with RTT examined and medical records reviewed. All diagnoses were revisited according to the current diagnostic criteria and exome-based sequencing analyses were performed in individuals without an identified causative mutation. Participants were categorized according to genotypes and RTT diagnosis. Individuals with RTT with and without mutations in MECP2 were compared. Results: Ninety-one individuals were included. A presumed causative mutation was identified in 86 individuals, of these, mutations in MECP2 in 77 individuals and mutations in SMC1A, SYNGAP1, SCN1A, CDKL5, FOXG1 or chromosome 13q in nine. Seventy-two individuals fulfilled the diagnostic criteria for classic and 12 for atypical RTT. Significant differences in early development, loss of hand use and language, intense eye gaze and the presence of early onset epilepsy were revealed in individuals with RTT according to their MECP2 genotypic status. Conclusion: Using the current diagnostic criteria, genetic and clinical variation in RTT is considerable. Significant differences between individuals with RTT with and without MECP2 mutations indicate that MECP2 is a major determinant for the clinical phenotype in individuals with RTT. (C) 2020 The Japanese Society of Child Neurology. Published by Elsevier B.V. All rights reserved.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?