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Recurrent duplications of the annexin A1 gene (ANXA1) in autism spectrum disorders

Validating the potential pathogenicity of copy number variants (CNVs) identified in genome-wide studies of autism spectrum disorders (ASD) requires detailed assessment of case/control frequencies, inheritance patterns, clinical correlations, and functional impact. Here, we characterize a small recurrent duplication in the annexin A1 (ANXA1) gene, identified by the Autism Genome Project (AGP) study.

Dysfunction of the Heteromeric KV7.3/KV7.5 Potassium Channel is Associated with...

Heterozygous mutations in the KCNQ3 gene on chromosome 8q24 encoding the voltage-gated potassium channel KV7.3 subunit have previously been associated with rolandic epilepsy and idiopathic generalized epilepsy (IGE) including benign neonatal convulsions. We identified a de novo t(3;8) (q21;q24) translocation truncating KCNQ3 in a boy with childhood autism. In addition, we identified a c.1720C > T [p.P574S] nucl...

Efeito da congelação e armazenamento de amostras de plasma na estabilidade de e...

Synaptic Transmission: Looking for Clues to Autism Spectrum Disorders (ASD) Eti...

Copy Number Variants (CNVs) play an important role in susceptibility to ASD, often mediated by the deletion or duplication of genes involved in synaptic structure and function. Increasing evidence suggests a central role for defects in synaptic structure and function in the pathogenesis of non-syndromic ASD. In this study we tested the hypothesis of an enrichment in CNVs encompassing synaptic transmission genes...

Individual common variants exert weak effects on the risk for autism spectrum d...

While it is apparent that rare variation can play an important role in the genetic architecture of autism spectrum disorders (ASDs), the contribution of common variation to the risk of developing ASD is less clear. To produce a more comprehensive picture, we report Stage 2 of the Autism Genome Project genome-wide association study, adding 1301 ASD families and bringing the total to 2705 families analysed (Stage...

Copy number variants involving components of the glutamatergic synaptic pathway...

This work was supported by the fellowships SFRH/BD/79081/2011 to BO, SFRH/BPD/74739/2010 to ICC and SFRH/BPD/64281/2009 to CC from Fundação para a Ciência e a Tecnologia (FCT; Portugal). ; Copy Number Variants (CNVs) play an important role in susceptibility to Autism Spectrum Disorders (ASD), in particular when deleting or duplicating genes involved in synaptic structure and function such as glutamatergic syna...

The role of ADH1B in alcohol consumption and stroke susceptibility

This work was part of a collaboration between Grupo de Neurogenética e Saúde Mental, Departamento de Promoção da Saúde e Prevenção de Doenças Não Transmissíveis, INSA, Lisboa, and Genetic Epidemiology Group, Department of Epidemiology and Public Health, University College of London, London. Samples collection was supported by fellowship PECS/T/SAU/179/95, from Fundação para a Ciência e a Tecnologia (FCT; Portug...

Compensatory T-Cell Regulation in Unaffected Relatives of SLE Patients, and Opp...

In human systemic lupus erythematosus (SLE), diverse autoantibodies accumulate over years before disease manifestation. Unaffected relatives of SLE patients frequently share a sustained production of autoantibodies with indiscriminable specificity, usually without ever acquiring the disease. We studied relations of IgG autoantibody profiles and peripheral blood activated regulatory T-cells (aTregs), represented...

Genetic risk factors for ischaemic stroke and its subtypes (the METASTROKE coll...

Various genome-wide association studies (GWAS) have been done in ischaemic stroke, identifying a few loci associated with the disease, but sample sizes have been 3500 cases or less. We established the METASTROKE collaboration with the aim of validating associations from previous GWAS and identifying novel genetic associations through meta-analysis of GWAS datasets for ischaemic stroke and its subtypes.

Identification of protein sub-networks implicated in Autism Spectrum Disorders

Autism Spectrum Disorders (ASDs) represent a group of childhood neurodevelopmental disorders characterized by three primary areas of impairment: social interaction, communication, and restricted and repetitive patterns of interest or behavior. Although autism is one of the most heritable neuropsychiatric disorders, most of the known genetic risk has been traced to rare variants. Genome-wide association studies ...