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Serotonin system genes and obsessive-compulsive trait dimensions in a population-based, pediatric sample: a genetic association study / V. M. SINOPOLI in Journal of Child Psychology and Psychiatry, 60-12 (December 2019)
[article]
Titre : Serotonin system genes and obsessive-compulsive trait dimensions in a population-based, pediatric sample: a genetic association study Type de document : Texte imprimé et/ou numérique Auteurs : V. M. SINOPOLI, Auteur ; L. ERDMAN, Auteur ; C. L. BURTON, Auteur ; L. S. PARK, Auteur ; A. DUPUIS, Auteur ; J. SHAN, Auteur ; T. GOODALE, Auteur ; S. M. SHAHEEN, Auteur ; J. CROSBIE, Auteur ; Russell SCHACHAR, Auteur ; P. D. ARNOLD, Auteur Article en page(s) : p.1289-1299 Langues : Anglais (eng) Mots-clés : 5-httlpr Htr1b Htr2a Obsessive-compulsive disorder Slc6a4 genetic association phenotypic heterogeneity population-based serotonin genes serotonin system symptom dimensions Index. décimale : PER Périodiques Résumé : BACKGROUND: Serotonin system genes are commonly studied in obsessive-compulsive disorder (OCD), but genetic studies to date have produced inconsistent results, possibly because phenotypic heterogeneity has not been adequately accounted for. In this paper, we studied candidate serotonergic genes and homogenous phenotypic subgroups as presented through obsessive-compulsive (OC) trait dimensions in a general population of children and adolescents. We hypothesized that different serotonergic gene variants are associated with different OC trait dimensions and, furthermore, that they vary by sex. METHODS: Obsessive-compulsive trait dimensions (Cleaning/Contamination, Counting/Checking, Symmetry/Ordering, Superstition, Rumination, and Hoarding) were examined in a total of 5,213 pediatric participants in the community using the Toronto Obsessive-Compulsive Scale (TOCS). We genotyped candidate serotonin genes (directly genotyping the 5-HTTLPR polymorphism in SLC6A4 for 2018 individuals and using single nucleotide polymorphism (SNP) array data for genes SLC6A4, HTR2A, and HTR1B for 4711 individuals). We assessed the association between variants across these genes and each of the OC trait dimensions, within males and females separately. We analyzed OC traits as both (a) dichotomized based on a threshold value and (b) quantitative scores. RESULTS: The [LG + S] variant in 5-HTTLPR was significantly associated with hoarding in males (p-value of 0.003 and 0.004 for categorical and continuous analyses, respectively). There were no significant findings for 5-HTTLPR in females. Using SNP array data, there were significant findings for rumination in males for HTR2A SNPs (p-value of 1.04e-6 to 5.20e-6). CONCLUSIONS: This represents the first genetic association study of OC trait dimensions in a community-based pediatric sample. Our strongest results indicate that hoarding and rumination may be distinct in their association with serotonin gene variants and that serotonin gene variation may be specific to sex. Future genetic association studies in OCD should properly account for heterogeneity, using homogenous subgroups stratified by symptom dimension, sex, and age group. En ligne : http://dx.doi.org/10.1111/jcpp.13079 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=412
in Journal of Child Psychology and Psychiatry > 60-12 (December 2019) . - p.1289-1299[article] Serotonin system genes and obsessive-compulsive trait dimensions in a population-based, pediatric sample: a genetic association study [Texte imprimé et/ou numérique] / V. M. SINOPOLI, Auteur ; L. ERDMAN, Auteur ; C. L. BURTON, Auteur ; L. S. PARK, Auteur ; A. DUPUIS, Auteur ; J. SHAN, Auteur ; T. GOODALE, Auteur ; S. M. SHAHEEN, Auteur ; J. CROSBIE, Auteur ; Russell SCHACHAR, Auteur ; P. D. ARNOLD, Auteur . - p.1289-1299.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 60-12 (December 2019) . - p.1289-1299
Mots-clés : 5-httlpr Htr1b Htr2a Obsessive-compulsive disorder Slc6a4 genetic association phenotypic heterogeneity population-based serotonin genes serotonin system symptom dimensions Index. décimale : PER Périodiques Résumé : BACKGROUND: Serotonin system genes are commonly studied in obsessive-compulsive disorder (OCD), but genetic studies to date have produced inconsistent results, possibly because phenotypic heterogeneity has not been adequately accounted for. In this paper, we studied candidate serotonergic genes and homogenous phenotypic subgroups as presented through obsessive-compulsive (OC) trait dimensions in a general population of children and adolescents. We hypothesized that different serotonergic gene variants are associated with different OC trait dimensions and, furthermore, that they vary by sex. METHODS: Obsessive-compulsive trait dimensions (Cleaning/Contamination, Counting/Checking, Symmetry/Ordering, Superstition, Rumination, and Hoarding) were examined in a total of 5,213 pediatric participants in the community using the Toronto Obsessive-Compulsive Scale (TOCS). We genotyped candidate serotonin genes (directly genotyping the 5-HTTLPR polymorphism in SLC6A4 for 2018 individuals and using single nucleotide polymorphism (SNP) array data for genes SLC6A4, HTR2A, and HTR1B for 4711 individuals). We assessed the association between variants across these genes and each of the OC trait dimensions, within males and females separately. We analyzed OC traits as both (a) dichotomized based on a threshold value and (b) quantitative scores. RESULTS: The [LG + S] variant in 5-HTTLPR was significantly associated with hoarding in males (p-value of 0.003 and 0.004 for categorical and continuous analyses, respectively). There were no significant findings for 5-HTTLPR in females. Using SNP array data, there were significant findings for rumination in males for HTR2A SNPs (p-value of 1.04e-6 to 5.20e-6). CONCLUSIONS: This represents the first genetic association study of OC trait dimensions in a community-based pediatric sample. Our strongest results indicate that hoarding and rumination may be distinct in their association with serotonin gene variants and that serotonin gene variation may be specific to sex. Future genetic association studies in OCD should properly account for heterogeneity, using homogenous subgroups stratified by symptom dimension, sex, and age group. En ligne : http://dx.doi.org/10.1111/jcpp.13079 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=412 Combined genome-wide linkage and targeted association analysis of head circumference in autism spectrum disorder families / M. WOODBURY-SMITH in Journal of Neurodevelopmental Disorders, 9-1 (December 2017)
[article]
Titre : Combined genome-wide linkage and targeted association analysis of head circumference in autism spectrum disorder families Type de document : Texte imprimé et/ou numérique Auteurs : M. WOODBURY-SMITH, Auteur ; Deborah A. BILDER, Auteur ; J. MORGAN, Auteur ; L. JEROMINSKI, Auteur ; T. DARLINGTON, Auteur ; T. DYER, Auteur ; Andrew D. PATERSON, Auteur ; H. COON, Auteur Article en page(s) : p.5 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder (ASD) Genetic association Genome-wide linkage Head circumference (HC) Index. décimale : PER Périodiques Résumé : BACKGROUND: It has long been recognized that there is an association between enlarged head circumference (HC) and autism spectrum disorder (ASD), but the genetics of HC in ASD is not well understood. In order to investigate the genetic underpinning of HC in ASD, we undertook a genome-wide linkage study of HC followed by linkage signal targeted association among a sample of 67 extended pedigrees with ASD. METHODS: HC measurements on members of 67 multiplex ASD extended pedigrees were used as a quantitative trait in a genome-wide linkage analysis. The Illumina 6K SNP linkage panel was used, and analyses were carried out using the SOLAR implemented variance components model. Loci identified in this way formed the target for subsequent association analysis using the Illumina OmniExpress chip and imputed genotypes. A modification of the qTDT was used as implemented in SOLAR. RESULTS: We identified a linkage signal spanning 6p21.31 to 6p22.2 (maximum LOD = 3.4). Although targeted association did not find evidence of association with any SNP overall, in one family with the strongest evidence of linkage, there was evidence for association (rs17586672, p = 1.72E-07). CONCLUSIONS: Although this region does not overlap with ASD linkage signals in these same samples, it has been associated with other psychiatric risk, including ADHD, developmental dyslexia, schizophrenia, specific language impairment, and juvenile bipolar disorder. The genome-wide significant linkage signal represents the first reported observation of a potential quantitative trait locus for HC in ASD and may be relevant in the context of complex multivariate risk likely leading to ASD. En ligne : http://dx.doi.org/10.1186/s11689-017-9187-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349
in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.5[article] Combined genome-wide linkage and targeted association analysis of head circumference in autism spectrum disorder families [Texte imprimé et/ou numérique] / M. WOODBURY-SMITH, Auteur ; Deborah A. BILDER, Auteur ; J. MORGAN, Auteur ; L. JEROMINSKI, Auteur ; T. DARLINGTON, Auteur ; T. DYER, Auteur ; Andrew D. PATERSON, Auteur ; H. COON, Auteur . - p.5.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 9-1 (December 2017) . - p.5
Mots-clés : Autism spectrum disorder (ASD) Genetic association Genome-wide linkage Head circumference (HC) Index. décimale : PER Périodiques Résumé : BACKGROUND: It has long been recognized that there is an association between enlarged head circumference (HC) and autism spectrum disorder (ASD), but the genetics of HC in ASD is not well understood. In order to investigate the genetic underpinning of HC in ASD, we undertook a genome-wide linkage study of HC followed by linkage signal targeted association among a sample of 67 extended pedigrees with ASD. METHODS: HC measurements on members of 67 multiplex ASD extended pedigrees were used as a quantitative trait in a genome-wide linkage analysis. The Illumina 6K SNP linkage panel was used, and analyses were carried out using the SOLAR implemented variance components model. Loci identified in this way formed the target for subsequent association analysis using the Illumina OmniExpress chip and imputed genotypes. A modification of the qTDT was used as implemented in SOLAR. RESULTS: We identified a linkage signal spanning 6p21.31 to 6p22.2 (maximum LOD = 3.4). Although targeted association did not find evidence of association with any SNP overall, in one family with the strongest evidence of linkage, there was evidence for association (rs17586672, p = 1.72E-07). CONCLUSIONS: Although this region does not overlap with ASD linkage signals in these same samples, it has been associated with other psychiatric risk, including ADHD, developmental dyslexia, schizophrenia, specific language impairment, and juvenile bipolar disorder. The genome-wide significant linkage signal represents the first reported observation of a potential quantitative trait locus for HC in ASD and may be relevant in the context of complex multivariate risk likely leading to ASD. En ligne : http://dx.doi.org/10.1186/s11689-017-9187-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349 Consanguinity in India and Its Association With Autism Spectrum Disorder / Madhu P. MAMIDALA in Autism Research, 8-2 (April 2015)
[article]
Titre : Consanguinity in India and Its Association With Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Madhu P. MAMIDALA, Auteur ; Mahesh Kumar KALIKIRI, Auteur ; P. T. V. PRAVEEN KUMAR, Auteur ; N. RAJESH, Auteur ; OmSai R. VALLAMKONDA, Auteur ; Vidya RAJESH, Auteur Article en page(s) : p.224-228 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder consanguinity risk factors genetic association India Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) has both genetic and environmental factors in its etiology. The risk for many disorders is increased by consanguinity, but it is not known whether it increases the risk for ASD. Our study from large population in India concludes that consanguinity increases the risk for ASD with an odds ratio of 3.22. En ligne : http://dx.doi.org/10.1002/aur.1431 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=256
in Autism Research > 8-2 (April 2015) . - p.224-228[article] Consanguinity in India and Its Association With Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Madhu P. MAMIDALA, Auteur ; Mahesh Kumar KALIKIRI, Auteur ; P. T. V. PRAVEEN KUMAR, Auteur ; N. RAJESH, Auteur ; OmSai R. VALLAMKONDA, Auteur ; Vidya RAJESH, Auteur . - p.224-228.
Langues : Anglais (eng)
in Autism Research > 8-2 (April 2015) . - p.224-228
Mots-clés : Autism Spectrum Disorder consanguinity risk factors genetic association India Index. décimale : PER Périodiques Résumé : Autism Spectrum Disorder (ASD) has both genetic and environmental factors in its etiology. The risk for many disorders is increased by consanguinity, but it is not known whether it increases the risk for ASD. Our study from large population in India concludes that consanguinity increases the risk for ASD with an odds ratio of 3.22. En ligne : http://dx.doi.org/10.1002/aur.1431 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=256 Familial and genetic associations between autism spectrum disorder and other neurodevelopmental and psychiatric disorders / L. GHIRARDI in Journal of Child Psychology and Psychiatry, 62-11 (November 2021)
[article]
Titre : Familial and genetic associations between autism spectrum disorder and other neurodevelopmental and psychiatric disorders Type de document : Texte imprimé et/ou numérique Auteurs : L. GHIRARDI, Auteur ; R. KUJA-HALKOLA, Auteur ; Agnieszka BUTWICKA, Auteur ; J. MARTIN, Auteur ; H. LARSSON, Auteur ; B. M. D'ONOFRIO, Auteur ; P. LICHTENSTEIN, Auteur ; M. J. TAYLOR, Auteur Article en page(s) : p.1274-1284 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/epidemiology/genetics Cohort Studies Comorbidity Humans Intellectual Disability/epidemiology/genetics Neurodevelopmental Disorders/epidemiology/genetics Autism spectrum disorder family based study genetic association neurodevelopmental disorders Index. décimale : PER Périodiques Résumé : BACKGROUND: Familial and genetic associations between autism spectrum disorder (ASD) and other neurodevelopmental and psychiatric disorders have been reported, sometimes with conflicting results. We estimated familial and genetic associations between ASD and nine disorder groups, and explored differences in these associations for ASD in the context of intellectual disability, epilepsy, chromosomal abnormalities, and congenital malformations. METHODS: Individuals born between 1985 and 2009 living in Sweden on their seventh birthday were linked to their biological parents in order to identify different types of relatives. We retrieved information on all the disorders considered from the National Patient Register. Logistic regression was used to estimate the familial association between ASD and other neurodevelopmental and psychiatric disorders in the different groups of relatives. Structural equation modeling was used to estimate phenotypic (r(p) ) and genetic associations (r(g) ), as well as the contribution of genetic influences to r(p) . RESULTS: The study included 2,398,608 individuals. Among relatives of individuals diagnosed with ASD, there was an increased risk of the disorders considered, compared to relatives of individuals who were not diagnosed with ASD. Stronger associations were detected for ASD without any additional diagnosis of intellectual disability, epilepsy, chromosomal abnormalities, and congenital malformations. The strongest genetic correlation was estimated between ASD and other neurodevelopmental disorders (r(g) = 0.73; 95% CI = 0.66-0.79). Moderate genetic correlations were estimated for anxiety disorders (r(g) = 0.47; 95% CI = 0.33-0.61), depression (r(g) = 0.52; 95% CI = 0.37-0.66), and intentional self-harm (r(g) = 0.54; 95% CI = 0.36-0.71). CONCLUSIONS: ASD shows familial and genetic association not only with other neurodevelopmental disorders, but also with other psychiatric disorders, such as anxiety, depression, and intentional self-harm. Family history of ASD comorbid with intellectual disability, epilepsy, congenital malformations, or chromosomal abnormalities is less related to other psychiatric disorders, potentially suggesting a different etiology for this subgroup of patients. En ligne : http://dx.doi.org/10.1111/jcpp.13508 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456
in Journal of Child Psychology and Psychiatry > 62-11 (November 2021) . - p.1274-1284[article] Familial and genetic associations between autism spectrum disorder and other neurodevelopmental and psychiatric disorders [Texte imprimé et/ou numérique] / L. GHIRARDI, Auteur ; R. KUJA-HALKOLA, Auteur ; Agnieszka BUTWICKA, Auteur ; J. MARTIN, Auteur ; H. LARSSON, Auteur ; B. M. D'ONOFRIO, Auteur ; P. LICHTENSTEIN, Auteur ; M. J. TAYLOR, Auteur . - p.1274-1284.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 62-11 (November 2021) . - p.1274-1284
Mots-clés : Autism Spectrum Disorder/epidemiology/genetics Cohort Studies Comorbidity Humans Intellectual Disability/epidemiology/genetics Neurodevelopmental Disorders/epidemiology/genetics Autism spectrum disorder family based study genetic association neurodevelopmental disorders Index. décimale : PER Périodiques Résumé : BACKGROUND: Familial and genetic associations between autism spectrum disorder (ASD) and other neurodevelopmental and psychiatric disorders have been reported, sometimes with conflicting results. We estimated familial and genetic associations between ASD and nine disorder groups, and explored differences in these associations for ASD in the context of intellectual disability, epilepsy, chromosomal abnormalities, and congenital malformations. METHODS: Individuals born between 1985 and 2009 living in Sweden on their seventh birthday were linked to their biological parents in order to identify different types of relatives. We retrieved information on all the disorders considered from the National Patient Register. Logistic regression was used to estimate the familial association between ASD and other neurodevelopmental and psychiatric disorders in the different groups of relatives. Structural equation modeling was used to estimate phenotypic (r(p) ) and genetic associations (r(g) ), as well as the contribution of genetic influences to r(p) . RESULTS: The study included 2,398,608 individuals. Among relatives of individuals diagnosed with ASD, there was an increased risk of the disorders considered, compared to relatives of individuals who were not diagnosed with ASD. Stronger associations were detected for ASD without any additional diagnosis of intellectual disability, epilepsy, chromosomal abnormalities, and congenital malformations. The strongest genetic correlation was estimated between ASD and other neurodevelopmental disorders (r(g) = 0.73; 95% CI = 0.66-0.79). Moderate genetic correlations were estimated for anxiety disorders (r(g) = 0.47; 95% CI = 0.33-0.61), depression (r(g) = 0.52; 95% CI = 0.37-0.66), and intentional self-harm (r(g) = 0.54; 95% CI = 0.36-0.71). CONCLUSIONS: ASD shows familial and genetic association not only with other neurodevelopmental disorders, but also with other psychiatric disorders, such as anxiety, depression, and intentional self-harm. Family history of ASD comorbid with intellectual disability, epilepsy, congenital malformations, or chromosomal abnormalities is less related to other psychiatric disorders, potentially suggesting a different etiology for this subgroup of patients. En ligne : http://dx.doi.org/10.1111/jcpp.13508 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456 Further evidence for a parent-of-origin effect at the NOP9 locus on language-related phenotypes / K. A. PETTIGREW in Journal of Neurodevelopmental Disorders, 8-1 (December 2016)
[article]
Titre : Further evidence for a parent-of-origin effect at the NOP9 locus on language-related phenotypes Type de document : Texte imprimé et/ou numérique Auteurs : K. A. PETTIGREW, Auteur ; E. FRINTON, Auteur ; R. NUDEL, Auteur ; M. T. M. CHAN, Auteur ; P. THOMPSON, Auteur ; M. E. HAYIOU-THOMAS, Auteur ; J. B. TALCOTT, Auteur ; J. STEIN, Auteur ; A. P. MONACO, Auteur ; C. HULME, Auteur ; M. J. SNOWLING, Auteur ; D. F. NEWBURY, Auteur ; S. PARACCHINI, Auteur Article en page(s) : p.24 Langues : Anglais (eng) Mots-clés : Candidate gene Dyslexia Genetic association Language impairment Parent-of-origin Index. décimale : PER Périodiques Résumé : BACKGROUND: Specific language impairment (SLI) is a common neurodevelopmental disorder, observed in 5-10 % of children. Family and twin studies suggest a strong genetic component, but relatively few candidate genes have been reported to date. A recent genome-wide association study (GWAS) described the first statistically significant association specifically for a SLI cohort between a missense variant (rs4280164) in the NOP9 gene and language-related phenotypes under a parent-of-origin model. Replications of these findings are particularly challenging because the availability of parental DNA is required. METHODS: We used two independent family-based cohorts characterised with reading- and language-related traits: a longitudinal cohort (n = 106 informative families) including children with language and reading difficulties and a nuclear family cohort (n = 264 families) selected for dyslexia. RESULTS: We observed association with language-related measures when modelling for parent-of-origin effects at the NOP9 locus in both cohorts: minimum P = 0.001 for phonological awareness with a paternal effect in the first cohort and minimum P = 0.0004 for irregular word reading with a maternal effect in the second cohort. Allelic and parental trends were not consistent when compared to the original study. CONCLUSIONS: A parent-of-origin effect at this locus was detected in both cohorts, albeit with different trends. These findings contribute in interpreting the original GWAS report and support further investigations of the NOP9 locus and its role in language-related traits. A systematic evaluation of parent-of-origin effects in genetic association studies has the potential to reveal novel mechanisms underlying complex traits. En ligne : http://dx.doi.org/10.1186/s11689-016-9157-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.24[article] Further evidence for a parent-of-origin effect at the NOP9 locus on language-related phenotypes [Texte imprimé et/ou numérique] / K. A. PETTIGREW, Auteur ; E. FRINTON, Auteur ; R. NUDEL, Auteur ; M. T. M. CHAN, Auteur ; P. THOMPSON, Auteur ; M. E. HAYIOU-THOMAS, Auteur ; J. B. TALCOTT, Auteur ; J. STEIN, Auteur ; A. P. MONACO, Auteur ; C. HULME, Auteur ; M. J. SNOWLING, Auteur ; D. F. NEWBURY, Auteur ; S. PARACCHINI, Auteur . - p.24.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.24
Mots-clés : Candidate gene Dyslexia Genetic association Language impairment Parent-of-origin Index. décimale : PER Périodiques Résumé : BACKGROUND: Specific language impairment (SLI) is a common neurodevelopmental disorder, observed in 5-10 % of children. Family and twin studies suggest a strong genetic component, but relatively few candidate genes have been reported to date. A recent genome-wide association study (GWAS) described the first statistically significant association specifically for a SLI cohort between a missense variant (rs4280164) in the NOP9 gene and language-related phenotypes under a parent-of-origin model. Replications of these findings are particularly challenging because the availability of parental DNA is required. METHODS: We used two independent family-based cohorts characterised with reading- and language-related traits: a longitudinal cohort (n = 106 informative families) including children with language and reading difficulties and a nuclear family cohort (n = 264 families) selected for dyslexia. RESULTS: We observed association with language-related measures when modelling for parent-of-origin effects at the NOP9 locus in both cohorts: minimum P = 0.001 for phonological awareness with a paternal effect in the first cohort and minimum P = 0.0004 for irregular word reading with a maternal effect in the second cohort. Allelic and parental trends were not consistent when compared to the original study. CONCLUSIONS: A parent-of-origin effect at this locus was detected in both cohorts, albeit with different trends. These findings contribute in interpreting the original GWAS report and support further investigations of the NOP9 locus and its role in language-related traits. A systematic evaluation of parent-of-origin effects in genetic association studies has the potential to reveal novel mechanisms underlying complex traits. En ligne : http://dx.doi.org/10.1186/s11689-016-9157-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349 LPHN3 and attention-deficit/hyperactivity disorder: interaction with maternal stress during pregnancy / Zia CHOUDHRY in Journal of Child Psychology and Psychiatry, 53-8 (August 2012)
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