Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population-based study / A. HAVDAHL in Journal of Child Psychology and Psychiatry, 62-9 (September 2021)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 62-9 (September 2021) . - p.1070-1078 Titre : Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population-based study Type de document : Texte imprimé et/ou numérique Auteurs : A. HAVDAHL, Auteur ; C. FARMER, Auteur ; Synnve SCHJØLBERG, Auteur ; A. S. ØYEN, Auteur ; P. SURÉN, Auteur ; T. REICHBORN-KJENNERUD, Auteur ; P. MAGNUS, Auteur ; Michaeline BRESNAHAN, Auteur ; M. HORNIG, Auteur ; E. SUSSER, Auteur ; W. I. LIPKIN, Auteur ; C. LORD, Auteur ; C. STOLTENBERG, Auteur ; A. THURM, Auteur ; Somer L. BISHOP, Auteur Article en page(s) : p.1070-1078 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/epidemiology  Child  Cohort Studies  Humans  Intellectual Disability/epidemiology  Neurodevelopmental Disorders/epidemiology  Walking  Intellectual disability  MoBa  epidemiology  gross motor milestones  late walking  All profits from their research are donated to charity. The other authors report no  conflicts of interest. Index. décimale : PER Périodiques Résumé : BACKGROUND: Delayed walking is common in intellectual disability (ID) but may be less common when ID occurs with autism spectrum disorder (ASD). Previous studies examining this were limited by reliance on clinical samples and exclusion of children with severe motor deficits. OBJECTIVE: To examine in a population-based sample if age of walking is differentially related to intellectual ability in children with ASD versus other neurodevelopmental disorders (NDD). METHODS: Participants were from the nested Autism Birth Cohort Study of the Norwegian Mother, Father and Child Cohort Study (MoBa). Cox proportional hazards regression assessed if diagnosis (ASD n = 212 vs. NDD n = 354), continuous nonverbal IQ, and their interaction, were associated with continuous age of walking. RESULTS: The relationship between nonverbal IQ and age of walking was stronger for NDD than for ASD (Group × nonverbal IQ interaction, ?(2)  = 13.93, p = .0002). This interaction was characterized by a 21% decrease in the likelihood of walking onset at any given time during the observation period per 10-point decrease in nonverbal IQ (hazard ratio = 0.79, 95% CI: 0.78-0.85) in the NDD group compared to 8% (hazard ratio = 0.92, 95% CI: 0.86-0.98) in the ASD group. CONCLUSIONS: The finding that age of walking is less strongly related to low intellectual ability in children with ASD than in children without other NDDs supports the hypothesis that ID in ASD may result from heterogeneous developmental pathways. Late walking may be a useful stratification variable in etiological research focused on ASD and other NDDs. En ligne : http://dx.doi.org/10.1111/jcpp.13369 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456 [article] Age of walking and intellectual ability in autism spectrum disorder and other neurodevelopmental disorders: a population-based study [Texte imprimé et/ou numérique] / A. HAVDAHL, Auteur ; C. FARMER, Auteur ; Synnve SCHJØLBERG, Auteur ; A. S. ØYEN, Auteur ; P. SURÉN, Auteur ; T. REICHBORN-KJENNERUD, Auteur ; P. MAGNUS, Auteur ; Michaeline BRESNAHAN, Auteur ; M. HORNIG, Auteur ; E. SUSSER, Auteur ; W. I. LIPKIN, Auteur ; C. LORD, Auteur ; C. STOLTENBERG, Auteur ; A. THURM, Auteur ; Somer L. BISHOP, Auteur . - p.1070-1078. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 62-9 (September 2021) . - p.1070-1078 Mots-clés : Autism Spectrum Disorder/epidemiology  Child  Cohort Studies  Humans  Intellectual Disability/epidemiology  Neurodevelopmental Disorders/epidemiology  Walking  Intellectual disability  MoBa  epidemiology  gross motor milestones  late walking  All profits from their research are donated to charity. The other authors report no  conflicts of interest. Index. décimale : PER Périodiques Résumé : BACKGROUND: Delayed walking is common in intellectual disability (ID) but may be less common when ID occurs with autism spectrum disorder (ASD). Previous studies examining this were limited by reliance on clinical samples and exclusion of children with severe motor deficits. OBJECTIVE: To examine in a population-based sample if age of walking is differentially related to intellectual ability in children with ASD versus other neurodevelopmental disorders (NDD). METHODS: Participants were from the nested Autism Birth Cohort Study of the Norwegian Mother, Father and Child Cohort Study (MoBa). Cox proportional hazards regression assessed if diagnosis (ASD n = 212 vs. NDD n = 354), continuous nonverbal IQ, and their interaction, were associated with continuous age of walking. RESULTS: The relationship between nonverbal IQ and age of walking was stronger for NDD than for ASD (Group × nonverbal IQ interaction, ?(2)  = 13.93, p = .0002). This interaction was characterized by a 21% decrease in the likelihood of walking onset at any given time during the observation period per 10-point decrease in nonverbal IQ (hazard ratio = 0.79, 95% CI: 0.78-0.85) in the NDD group compared to 8% (hazard ratio = 0.92, 95% CI: 0.86-0.98) in the ASD group. CONCLUSIONS: The finding that age of walking is less strongly related to low intellectual ability in children with ASD than in children without other NDDs supports the hypothesis that ID in ASD may result from heterogeneous developmental pathways. Late walking may be a useful stratification variable in etiological research focused on ASD and other NDDs. En ligne : http://dx.doi.org/10.1111/jcpp.13369 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456

Combining multivariate genomic approaches to elucidate the comorbidity between autism spectrum disorder and attention deficit hyperactivity disorder / H. PEYRE in Journal of Child Psychology and Psychiatry, 62-11 (November 2021)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 62-11 (November 2021) . - p.1285-1296 Titre : Combining multivariate genomic approaches to elucidate the comorbidity between autism spectrum disorder and attention deficit hyperactivity disorder Type de document : Texte imprimé et/ou numérique Auteurs : H. PEYRE, Auteur ; T. SCHOELER, Auteur ; C. LIU, Auteur ; C. M. WILLIAMS, Auteur ; N. HOERTEL, Auteur ; A. HAVDAHL, Auteur ; J. B. PINGAULT, Auteur Article en page(s) : p.1285-1296 Langues : Anglais (eng) Mots-clés : Attention Deficit Disorder with Hyperactivity/epidemiology/genetics  Autism Spectrum Disorder/epidemiology/genetics  Comorbidity  Genome-Wide Association Study  Genomics  Humans  Paired Box Transcription Factors/genetics  Polymorphism, Single Nucleotide  Repressor Proteins/genetics  Autism spectrum disorder  Gwas  Snp  attention deficit hyperactivity disorder  colocalization  common genetic variants  comorbidity  genomic structural equation modelling Index. décimale : PER Périodiques Résumé : BACKGROUND: Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are two highly heritable neurodevelopmental disorders. Several lines of evidence point towards the presence of shared genetic factors underlying ASD and ADHD. We conducted genomic analyses of common risk variants (i.e. single nucleotide polymorphisms, SNPs) shared by ASD and ADHD, and those specific to each disorder. METHODS: With the summary data from two GWAS, one on ASD (N = 46,350) and another on ADHD (N = 55,374) individuals, we used genomic structural equation modelling and colocalization analysis to identify SNPs shared by ASD and ADHD and SNPs specific to each disorder. Functional genomic analyses were then conducted on shared and specific common genetic variants. Finally, we performed a bidirectional Mendelian randomization analysis to test whether the shared genetic risk between ASD and ADHD was interpretable in terms of reciprocal relationships between ASD and ADHD. RESULTS: We found that 37.5% of the SNPs associated with ASD (at p < 1e-6) colocalized with ADHD SNPs and that 19.6% of the SNPs associated with ADHD colocalized with ASD SNPs. We identified genes mapped to SNPs that are specific to ASD or ADHD and that are shared by ASD and ADHD, including two novel genes INSM1 and PAX1. Our bidirectional Mendelian randomization analyses indicated that the risk of ASD was associated with an increased risk of ADHD and vice versa. CONCLUSIONS: Using multivariate genomic analyses, the present study uncovers shared and specific genetic variants associated with ASD and ADHD. Further functional investigation of genes mapped to those shared variants may help identify pathophysiological pathways and new targets for treatment. En ligne : http://dx.doi.org/10.1111/jcpp.13479 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456 [article] Combining multivariate genomic approaches to elucidate the comorbidity between autism spectrum disorder and attention deficit hyperactivity disorder [Texte imprimé et/ou numérique] / H. PEYRE, Auteur ; T. SCHOELER, Auteur ; C. LIU, Auteur ; C. M. WILLIAMS, Auteur ; N. HOERTEL, Auteur ; A. HAVDAHL, Auteur ; J. B. PINGAULT, Auteur . - p.1285-1296. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 62-11 (November 2021) . - p.1285-1296 Mots-clés : Attention Deficit Disorder with Hyperactivity/epidemiology/genetics  Autism Spectrum Disorder/epidemiology/genetics  Comorbidity  Genome-Wide Association Study  Genomics  Humans  Paired Box Transcription Factors/genetics  Polymorphism, Single Nucleotide  Repressor Proteins/genetics  Autism spectrum disorder  Gwas  Snp  attention deficit hyperactivity disorder  colocalization  common genetic variants  comorbidity  genomic structural equation modelling Index. décimale : PER Périodiques Résumé : BACKGROUND: Attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are two highly heritable neurodevelopmental disorders. Several lines of evidence point towards the presence of shared genetic factors underlying ASD and ADHD. We conducted genomic analyses of common risk variants (i.e. single nucleotide polymorphisms, SNPs) shared by ASD and ADHD, and those specific to each disorder. METHODS: With the summary data from two GWAS, one on ASD (N = 46,350) and another on ADHD (N = 55,374) individuals, we used genomic structural equation modelling and colocalization analysis to identify SNPs shared by ASD and ADHD and SNPs specific to each disorder. Functional genomic analyses were then conducted on shared and specific common genetic variants. Finally, we performed a bidirectional Mendelian randomization analysis to test whether the shared genetic risk between ASD and ADHD was interpretable in terms of reciprocal relationships between ASD and ADHD. RESULTS: We found that 37.5% of the SNPs associated with ASD (at p < 1e-6) colocalized with ADHD SNPs and that 19.6% of the SNPs associated with ADHD colocalized with ASD SNPs. We identified genes mapped to SNPs that are specific to ASD or ADHD and that are shared by ASD and ADHD, including two novel genes INSM1 and PAX1. Our bidirectional Mendelian randomization analyses indicated that the risk of ASD was associated with an increased risk of ADHD and vice versa. CONCLUSIONS: Using multivariate genomic analyses, the present study uncovers shared and specific genetic variants associated with ASD and ADHD. Further functional investigation of genes mapped to those shared variants may help identify pathophysiological pathways and new targets for treatment. En ligne : http://dx.doi.org/10.1111/jcpp.13479 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456

---

1 (1 - 2 / 2)