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Shared genetic influences between dimensional ASD and ADHD symptoms during child and adolescent development / E. STERGIAKOULI in Molecular Autism, 8 (2017)
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Titre : Shared genetic influences between dimensional ASD and ADHD symptoms during child and adolescent development Type de document : Texte imprimé et/ou numérique Auteurs : E. STERGIAKOULI, Auteur ; George DAVEY SMITH, Auteur ; J. MARTIN, Auteur ; D. H. SKUSE, Auteur ; W. VIECHTBAUER, Auteur ; S. M. RING, Auteur ; A. RONALD, Auteur ; D. E. EVANS, Auteur ; S. E. FISHER, Auteur ; A. THAPAR, Auteur ; B. ST POURCAIN, Auteur Article en page(s) : 18p. Langues : Anglais (eng) Mots-clés : ADHD symptoms Alspac Clinical ADHD Genetic overlap Social communication Index. décimale : PER Périodiques Résumé : BACKGROUND: Shared genetic influences between attention-deficit/hyperactivity disorder (ADHD) symptoms and autism spectrum disorder (ASD) symptoms have been reported. Cross-trait genetic relationships are, however, subject to dynamic changes during development. We investigated the continuity of genetic overlap between ASD and ADHD symptoms in a general population sample during childhood and adolescence. We also studied uni- and cross-dimensional trait-disorder links with respect to genetic ADHD and ASD risk. METHODS: Social-communication difficulties (N = 5551, Social and Communication Disorders Checklist, SCDC) and combined hyperactive-impulsive/inattentive ADHD symptoms (N = 5678, Strengths and Difficulties Questionnaire, SDQ-ADHD) were repeatedly measured in a UK birth cohort (ALSPAC, age 7 to 17 years). Genome-wide summary statistics on clinical ASD (5305 cases; 5305 pseudo-controls) and ADHD (4163 cases; 12,040 controls/pseudo-controls) were available from the Psychiatric Genomics Consortium. Genetic trait variances and genetic overlap between phenotypes were estimated using genome-wide data. RESULTS: In the general population, genetic influences for SCDC and SDQ-ADHD scores were shared throughout development. Genetic correlations across traits reached a similar strength and magnitude (cross-trait rg = 1, pmin = 3 x 10(-4)) as those between repeated measures of the same trait (within-trait rg = 0.94, pmin = 7 x 10(-4)). Shared genetic influences between traits, especially during later adolescence, may implicate variants in K-RAS signalling upregulated genes (p-meta = 6.4 x 10(-4)). Uni-dimensionally, each population-based trait mapped to the expected behavioural continuum: risk-increasing alleles for clinical ADHD were persistently associated with SDQ-ADHD scores throughout development (marginal regression R(2) = 0.084%). An age-specific genetic overlap between clinical ASD and social-communication difficulties during childhood was also shown, as per previous reports. Cross-dimensionally, however, neither SCDC nor SDQ-ADHD scores were linked to genetic risk for disorder. CONCLUSIONS: In the general population, genetic aetiologies between social-communication difficulties and ADHD symptoms are shared throughout child and adolescent development and may implicate similar biological pathways that co-vary during development. Within both the ASD and the ADHD dimension, population-based traits are also linked to clinical disorder, although much larger clinical discovery samples are required to reliably detect cross-dimensional trait-disorder relationships. En ligne : http://dx.doi.org/10.1186/s13229-017-0131-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=331
in Molecular Autism > 8 (2017) . - 18p.[article] Shared genetic influences between dimensional ASD and ADHD symptoms during child and adolescent development [Texte imprimé et/ou numérique] / E. STERGIAKOULI, Auteur ; George DAVEY SMITH, Auteur ; J. MARTIN, Auteur ; D. H. SKUSE, Auteur ; W. VIECHTBAUER, Auteur ; S. M. RING, Auteur ; A. RONALD, Auteur ; D. E. EVANS, Auteur ; S. E. FISHER, Auteur ; A. THAPAR, Auteur ; B. ST POURCAIN, Auteur . - 18p.
Langues : Anglais (eng)
in Molecular Autism > 8 (2017) . - 18p.
Mots-clés : ADHD symptoms Alspac Clinical ADHD Genetic overlap Social communication Index. décimale : PER Périodiques Résumé : BACKGROUND: Shared genetic influences between attention-deficit/hyperactivity disorder (ADHD) symptoms and autism spectrum disorder (ASD) symptoms have been reported. Cross-trait genetic relationships are, however, subject to dynamic changes during development. We investigated the continuity of genetic overlap between ASD and ADHD symptoms in a general population sample during childhood and adolescence. We also studied uni- and cross-dimensional trait-disorder links with respect to genetic ADHD and ASD risk. METHODS: Social-communication difficulties (N = 5551, Social and Communication Disorders Checklist, SCDC) and combined hyperactive-impulsive/inattentive ADHD symptoms (N = 5678, Strengths and Difficulties Questionnaire, SDQ-ADHD) were repeatedly measured in a UK birth cohort (ALSPAC, age 7 to 17 years). Genome-wide summary statistics on clinical ASD (5305 cases; 5305 pseudo-controls) and ADHD (4163 cases; 12,040 controls/pseudo-controls) were available from the Psychiatric Genomics Consortium. Genetic trait variances and genetic overlap between phenotypes were estimated using genome-wide data. RESULTS: In the general population, genetic influences for SCDC and SDQ-ADHD scores were shared throughout development. Genetic correlations across traits reached a similar strength and magnitude (cross-trait rg = 1, pmin = 3 x 10(-4)) as those between repeated measures of the same trait (within-trait rg = 0.94, pmin = 7 x 10(-4)). Shared genetic influences between traits, especially during later adolescence, may implicate variants in K-RAS signalling upregulated genes (p-meta = 6.4 x 10(-4)). Uni-dimensionally, each population-based trait mapped to the expected behavioural continuum: risk-increasing alleles for clinical ADHD were persistently associated with SDQ-ADHD scores throughout development (marginal regression R(2) = 0.084%). An age-specific genetic overlap between clinical ASD and social-communication difficulties during childhood was also shown, as per previous reports. Cross-dimensionally, however, neither SCDC nor SDQ-ADHD scores were linked to genetic risk for disorder. CONCLUSIONS: In the general population, genetic aetiologies between social-communication difficulties and ADHD symptoms are shared throughout child and adolescent development and may implicate similar biological pathways that co-vary during development. Within both the ASD and the ADHD dimension, population-based traits are also linked to clinical disorder, although much larger clinical discovery samples are required to reliably detect cross-dimensional trait-disorder relationships. En ligne : http://dx.doi.org/10.1186/s13229-017-0131-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=331