Language Profiles of School-Age Children With 16p11.2 Copy Number Variants in a Clinically Ascertained Cohort.

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Title: Language Profiles of School-Age Children With 16p11.2 Copy Number Variants in a Clinically Ascertained Cohort.
Authors: Verbesselt, Jente1,2 jente@verbesselt.net, Breckpot, Jeroen1,3, Zink, Inge2,4, Swillen, Ann1,3
Source: Journal of Speech, Language & Hearing Research. Nov2024, Vol. 67 Issue 11, p4487-4503. 17p.
Subject Terms: *Communicative competence, *Intellect, *Academic medical centers, *Data analysis, *Attention-deficit hyperactivity disorder, *Psychology of school children, *Phonological awareness, *Autism, *Verbal behavior testing, *Longitudinal method, *Speech evaluation, *Asperger's syndrome, *Comparative studies, *Vocabulary, *Hearing disorders, *Special education, *Language acquisition, *Articulation (Speech), Cross-sectional method, Child psychopathology, Research funding, T-test (Statistics), Premature infants, Interviewing, Questionnaires, Sex distribution, Chromosome abnormalities, Descriptive statistics, Mann Whitney U Test, Social skills, Statistics, Early diagnosis, Confidence intervals, Data analysis software, Phenotypes, Comorbidity, Social classes
Geographic Terms: Belgium
Abstract: Purpose: Individuals with proximal 16p11.2 copy number variants (CNVs), either deletions (16p11.2DS) or duplications (16p11.2Dup), are predisposed to neuro-developmental difficulties and disorders, such as language disorders, intellectual disability, and autism spectrum disorder. The purpose of the current study was to characterize language profiles of school-age children with proximal 16p11.2 CNVs, in relation to the normative sample and unaffected siblings of children with 16p11.2DS. Method: Standardized language tests were conducted in 33 school-age children with BP4-BP5 16p11.2 CNVs and eight unaffected siblings of children with 16p11.2DS to evaluate language production and comprehension skills across various language domains. A standardized intelligence test was also administered, and parents completed a standardized questionnaire to assess autistic traits. Language profiles were compared across 16p11.2 CNVs and intrafamilial pairs. The influence of nonverbal intelligence and autistic traits on language outcomes was investigated. Results: No significant differences were found between children with 16p11.2DS and those with 16p11.2Dup, although both groups exhibited significantly poorer language skills compared to the normative sample and unaffected siblings of children with 16p11.2DS. Severe language deficits were identified in 70% of individuals with 16p11.2 CNVs across all language subdomains, with significantly better receptive vocabulary skills than overall receptive language abilities. In children with 16p11.2DS, expressive language deficits were more pronounced than receptive deficits. In contrast, only in children with 16p11.2Dup did nonverbal intelligence influence their language outcomes. Conclusions: The current study contributes to the deeper understanding of language profiles in 16p11.2 CNVs in a clinically ascertained cohort, indicating generalized deficits across multiple language domains, rather than a syndrome-specific pattern targeting specific subdomains. The findings underscore the importance of early diagnosis, targeted therapy, and monitoring of language skills in children with 16p11.2 CNVs. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Education Research Complete
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  Data: Language Profiles of School-Age Children With 16p11.2 Copy Number Variants in a Clinically Ascertained Cohort.
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  Data: Purpose: Individuals with proximal 16p11.2 copy number variants (CNVs), either deletions (16p11.2DS) or duplications (16p11.2Dup), are predisposed to neuro-developmental difficulties and disorders, such as language disorders, intellectual disability, and autism spectrum disorder. The purpose of the current study was to characterize language profiles of school-age children with proximal 16p11.2 CNVs, in relation to the normative sample and unaffected siblings of children with 16p11.2DS. Method: Standardized language tests were conducted in 33 school-age children with BP4-BP5 16p11.2 CNVs and eight unaffected siblings of children with 16p11.2DS to evaluate language production and comprehension skills across various language domains. A standardized intelligence test was also administered, and parents completed a standardized questionnaire to assess autistic traits. Language profiles were compared across 16p11.2 CNVs and intrafamilial pairs. The influence of nonverbal intelligence and autistic traits on language outcomes was investigated. Results: No significant differences were found between children with 16p11.2DS and those with 16p11.2Dup, although both groups exhibited significantly poorer language skills compared to the normative sample and unaffected siblings of children with 16p11.2DS. Severe language deficits were identified in 70% of individuals with 16p11.2 CNVs across all language subdomains, with significantly better receptive vocabulary skills than overall receptive language abilities. In children with 16p11.2DS, expressive language deficits were more pronounced than receptive deficits. In contrast, only in children with 16p11.2Dup did nonverbal intelligence influence their language outcomes. Conclusions: The current study contributes to the deeper understanding of language profiles in 16p11.2 CNVs in a clinically ascertained cohort, indicating generalized deficits across multiple language domains, rather than a syndrome-specific pattern targeting specific subdomains. The findings underscore the importance of early diagnosis, targeted therapy, and monitoring of language skills in children with 16p11.2 CNVs. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1044/2024_JSLHR-24-00257
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      – Code: eng
        Text: English
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      – SubjectFull: Communicative competence
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      – SubjectFull: Intellect
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      – SubjectFull: Verbal behavior testing
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      – SubjectFull: Speech evaluation
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      – SubjectFull: Asperger's syndrome
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      – SubjectFull: Special education
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      – SubjectFull: Articulation (Speech)
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      – SubjectFull: Mann Whitney U Test
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      – SubjectFull: Belgium
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      – TitleFull: Language Profiles of School-Age Children With 16p11.2 Copy Number Variants in a Clinically Ascertained Cohort.
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              Text: Nov2024
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