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Bidirectional genetic overlap between autism spectrum disorder and cognitive traits
Autism spectrum disorder (ASD) is a highly heritable condition with a large variation in cognitive function. Here we investigated the shared genetic architecture between cognitive traits (intelligence (INT) and educational attainment (EDU)), and risk loci jointly associated with ASD and the cognitiv...
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Published in: | Translational psychiatry 2023-09, Vol.13 (1), p.295-9, Article 295 |
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Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Autism spectrum disorder (ASD) is a highly heritable condition with a large variation in cognitive function. Here we investigated the shared genetic architecture between cognitive traits (intelligence (INT) and educational attainment (EDU)), and risk loci jointly associated with ASD and the cognitive traits. We analyzed data from genome-wide association studies (GWAS) of INT (
n
= 269,867), EDU (
n
= 766,345) and ASD (cases
n
= 18,381, controls
n
= 27,969). We used the bivariate causal mixture model (MiXeR) to estimate the total number of shared genetic variants, local analysis of co-variant annotation (LAVA) to estimate local genetic correlations, conditional false discovery rate (cond/conjFDR) to identify specific overlapping loci. The MiXeR analyses showed that 12.7k genetic variants are associated with ASD, of which 12.0k variants are shared with EDU, and 11.1k are shared with INT with both positive and negative relationships within overlapping variants. The majority (59–68%) of estimated shared loci have concordant effect directions, with a positive, albeit modest, genetic correlation between ASD and EDU (r
g
= 0.21,
p
= 2e−13) and INT (r
g
= 0.22,
p
= 4e−12). We discovered 43 loci jointly associated with ASD and cognitive traits (conjFDR |
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ISSN: | 2158-3188 2158-3188 |
DOI: | 10.1038/s41398-023-02563-7 |