C Jensen

TL;DR: This study, the largest published so far, has revealed additional mutations in 23 genes previously implicated in intellectual disability or related neurological disorders, as well as single, probably disease-causing variants in 50 novel candidate genes.

TL;DR: It is suggested that systematic sequencing of all X-chromosomal genes in a cohort of patients with genetic evidence for X- Chromosome locus involvement may resolve up to 58% of Fragile X-negative cases.

TL;DR: A consistent loss-of-function effect of all tested de novo mutations on the Wnt pathway is demonstrated, and a differential effect by gender is shown, possibly reflects a dose-dependent effect of DDX3X expression in the context of functional mosaic females versus one-copy males, which reflects the complex biological nature of DDx3X mutations.

TL;DR: It is reported that variants in THOC2, which encodes a subunit of the highly conserved TREX mRNA-export complex, cause syndromic intellectual disability (ID), and disturbance of the canonical molecular pathway of mRNA export is compatible with life but results in altered neuronal development with other comorbidities.

TL;DR: The results reveal that rare loss-of-function variants in GABRA3 increase the risk for a varying combination of epilepsy, intellectual disability/developmental delay and dysmorphic features, presenting in some pedigrees with an X-linked inheritance pattern.