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1
CNTNAP2 variants affect early language development in the general population
Fisher, S E; Whitehouse, A J O; Bishop, D V M; Pennell, C E; Ang, Q W. - : Blackwell Publishing Ltd, 2011
Abstract: Early language development is known to be under genetic influence, but the genes affecting normal variation in the general population remain largely elusive. Recent studies of disorder reported that variants of the CNTNAP2 gene are associated both with language deficits in specific language impairment (SLI) and with language delays in autism. We tested the hypothesis that these CNTNAP2 variants affect communicative behavior, measured at 2 years of age in a large epidemiological sample, the Western Australian Pregnancy Cohort (Raine) Study. Singlepoint analyses of 1149 children (606 males and 543 females) revealed patterns of association which were strikingly reminiscent of those observed in previous investigations of impaired language, centered on the same genetic markers and with a consistent direction of effect (rs2710102, P = 0.0239; rs759178, P = 0.0248). On the basis of these findings, we performed analyses of four-marker haplotypes of rs2710102–rs759178–rs17236239–rs2538976 and identified significant association (haplotype TTAA, P = 0.049; haplotype GCAG, P = .0014). Our study suggests that common variants in the exon 13–15 region of CNTNAP2 influence early language acquisition, as assessed at age 2, in the general population. We propose that these CNTNAP2 variants increase susceptibility to SLI or autism when they occur together with other risk factors.
Keyword: Original Articles
URL: http://www.ncbi.nlm.nih.gov/pubmed/21310003
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130139
https://doi.org/10.1111/j.1601-183X.2011.00684.x
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2
Heritability of specific language impairment depends on diagnostic criteria
Bishop, D V M; Hayiou-Thomas, M E. - : Blackwell Publishing Ltd, 2008
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3
Heritable risk factors associated with language impairments
Barry, J G; Yasin, I; Bishop, D V M. - : Blackwell Publishing Ltd, 2007
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