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Genetic Epidemiology and Insights into Interactive Genetic and Environmental Effects in Autism Spectrum Disorders
Open accessAbstract
Understanding the pathogenesis of Neurodevelopmental Disorders (NDDs) has proven to be challenging. Using Autism Spectrum Disorder (ASD) as a paradigmatic NDD, this paper reviews the existing literature on the etiologic substrates of ASD and explores how genetic epidemiology approaches including gene-environment interactions (GxE) can play roles in identifying factors associated with ASD etiology. New genetic and bioinformatics strategies have yielded important clues to ASD genetic substrates. Next steps for understanding ASD pathogenesis require significant effort to focus on how genes and environment interact with one another in typical development and its perturbations. Along with larger sample sizes, future study designs should include sample ascertainment that is epidemiologic and population-based to capture the entire ASD spectrum with both categorical and dimensional phenotypic characterization, environmental measurement with accuracy, validity and biomarkers, statistical methods to address population stratification, multiple comparisons and GxE of rare variants, animal models to test hypotheses and, new methods to broaden the capacity to search for GxE, including genome-wide and environment-wide association studies, precise estimation of heritability using dense genetic markers and consideration of GxE both as the disease cause and a disease course modifier. While examination of GxE appears to be a daunting task, tremendous recent progress in gene discovery opens new horizons for advancing our understanding the role of GxE in the pathogenesis of, and ultimately identifying the causes, treatments and even prevention for ASD and other NDDs.
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Genome-wide association analysis identifies loci for type 2 diabetes and triglyceride levels
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Strong association of de novo copy number mutations with autism
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Sporadic autism exomes reveal a highly interconnected protein network of de novo mutations
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Rate of de novo mutations and the importance of father’s age to disease risk
Kong, A., Frigge, M. L., Masson, G., Besenbacher, S., Sulem, P., Magnusson, G., Gudjonsson, S. A., Sigurdsson, A., Jonasdottir, A., Jonasdottir, A., et al. (2012) · Nature · doi:10.1038/nature11396 · Cited by 2,134
De novo mutations revealed by whole-exome sequencing are strongly associated with autism
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Functional impact of global rare copy number variation in autism spectrum disorders
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Metadata
- Authors
- Kim, Y. S., & Leventhal, B. L.
- Venue
- Biological Psychiatry
- Publisher
- Elsevier BV
- Published
- 2015-01
- Volume
- 77
- Issue
- 1
- Pages
- 66-74
- ISSN
- 0006-3223 (ISSN-L)
- OpenAlex
- W2010765482
- Cited by
- 227
- References
- 62
- FWCI
- 9.70
- Type
- journal article
- Language
- en
- Open access
- green
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
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