Simons Searchlight is studying individuals with recurrent genetic variants associated with autism and related neurodevelopmental disorders.
Gastrointestinal (GI) distress commonly accompanies autism spectrum disorders (ASDs), significantly impacting the quality of life of those affected and their families. Julia Dallman, in collaboration with John Rawls, plans to use zebrafish as an experimental system, since it allows for the GI tract to be imaged and manipulated in live animals. They aim to determine if GI phenotypes in multiple genetic forms of ASD are caused by convergent gut-intrinsic mechanisms. The expected outcomes would open a new field of GI research for ASD that could suggest treatment strategies for managing GI distress in humans.
One of the challenges in assessing rodent models of autism/intellectual disability is linking specific genetic alterations to changes in neural function and behavior. Paul Dudchenko plans to address this challenge by using the head direction cell system — comprised of neurons that encode direction — to characterize rigid and flexible neural coding in Fmr1, Grin2b and Syngap1 knockout rats. This characterization will provide rich data on both the neural systems and the behavioral capacities of these three rodent models.
New Simons VIP Phase 2 data have recently been added to SFARI Base. This data release includes phenotypic data from individuals with 16p11.2 copy number variants (CNVs), 1q21.1 CNVs, and mutations in the following single genes: SCN2A, GRIN2B, PACS1, PPP2R5D, ADNP, MED13L, STXBP1, HIVEP2 and SYNGAP1.
New Simons VIP Phase 2 data were recently added to SFARI Base. This data release included data from individuals with 16p11.2 copy number variants (CNVs), 1q21.1 CNVs and mutations in the following single genes: ADNP, ASXL3, DYRK1A, FOXP1, GRIN2B, HIVEP2, MED13L, PACS1, PPP2R5D, SCN2A, SETBP1, STXBP1 and SYNGAP1.
New Simons VIP Phase 2 data were recently added to SFARI Base. This data release included data from individuals with 16p11.2 copy number variants, 1q21.1 CNVs and mutations in the following single genes: ADNP, ASXL3, CHAMP1, CHD8, CSNK2A1, DYRK1A, GRIN2B, HIVEP2, HNRNPH2, MED13L, PACS1, PPP2R5D, SCN2A, SETBP1, STXBP1 and SYNGAP1.
In this pilot study, Pierre Vanderhaeghen and his team aim to explore the intricate connections between ASD, mitochondrial function, and human neuronal development, with a specific focus on developmental timing. Innovative tools, including an in vitro model for studying mitochondrial morphology, dynamics, and function and an in vivo xenotransplantation model of human cortical neurons, will be used to achieve this. The investigation seeks to understand how mitochondrial dynamics and metabolism contribute to the pathology of ASD-linked mutations in genes such as MECP2 and SYNGAP1.
New Simons Searchlight data were recently added to SFARI Base. The data released included phenotypic data from individuals with 16p11.2 copy number variant (CNVs), 1q21.1 CNVs, 7q11.23 duplication and variants in 32 single genes associated with autism and related neurodevelopmental conditions.
New zebrafish lines with mutations in the high-confidence autism risk genes DYRK1A and GRIN2B have been added to SFARI resources.
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