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Head Circumferences in Twins With and Without Autism Spectrum Disorders.
MedLine Citation:
PMID:  23321801     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To determine the genetic relationship between head circumference (HC) and Autism Spectrum Disorders (ASDs). Twin pairs with at least one twin with an ASD were assessed. HCs in affected and unaffected individuals were compared, as were HC correlations in monozygotic and dizygotic pairs. 404 subjects, ages 4-18, were included. 20 % of males and 27 % of females with an ASD had macrocephaly. Unaffected co-twins showed similar rates (16 % of males and 22 % of females). Statistical analysis revealed no significant difference in HCs between affected and unaffected twins. Twins with ASDs and unaffected co-twins have similar HCs and increased rates of macrocephaly. Correlations demonstrated partial inheritance of HCs. Thus, macrocephaly may represent an endophenotype in ASDs.
Authors:
Wendy Froehlich; Sue Cleveland; Andrea Torres; Jennifer Phillips; Brianne Cohen; Tiffany Torigoe; Janet Miller; Angie Fedele; Jack Collins; Karen Smith; Linda Lotspeich; Lisa A Croen; Sally Ozonoff; Clara Lajonchere; Judith K Grether; Joachim Hallmayer
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  Journal of autism and developmental disorders     Volume:  -     ISSN:  1573-3432     ISO Abbreviation:  J Autism Dev Disord     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7904301     Medline TA:  J Autism Dev Disord     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Child and Adolescent Psychiatry, Department of Psychiatry, School of Medicine, Stanford University, 401 Quarry Road, MC 5719, Stanford, CA, 94305, USA, wendyf@stanford.edu.
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