Three Dyslexia Susceptibility Genes, DYX1C1, DCDC2, and KIAA0319, Affect Temporo-Parietal White Matter Structure

被引:116
作者
Darki, Fahimeh [1 ]
Peyrard-Janvid, Myriam [2 ]
Matsson, Hans [2 ]
Kere, Juha [2 ,3 ,4 ]
Klingberg, Torkel [1 ]
机构
[1] Karolinska Inst, Dept Neurosci, S-17176 Stockholm, Sweden
[2] Karolinska Inst, Dept Biosci & Nutr, Huddinge, Sweden
[3] Karolinska Inst, Sci Life Lab, Solna, Sweden
[4] Univ Helsinki, Haartman Inst, Res Programs Unit, Helsinki, Finland
基金
瑞典研究理事会;
关键词
Diffusion tensor imaging; dyslexia genes; general population; reading ability; single nucleotide polymorphism; SNP; DEVELOPMENTAL DYSLEXIA; NEURONAL MIGRATION; READING-DISABILITY; WORKING-MEMORY; CANDIDATE GENE; DISRUPTION; MICROSTRUCTURE; ASSOCIATION; ACTIVATION; EXPRESSION;
D O I
10.1016/j.biopsych.2012.05.008
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Background: Volume and integrity of white matter correlate with reading ability, but the underlying factors contributing to this variability are unknown. Methods: We investigated single nucleotide polymorphisms in three genes previously associated with dyslexia and implicated in neuronal migration (DYX1C1, DCDC2, KIAA0319) and white matter volume in a cohort of 76 children and young adults from the general population. Results: We found that all three genes contained polymorphisms that were significantly associated with white matter volume in the left temporo-parietal region and that white matter volume influenced reading ability. Conclusions: The identified region contained white matter pathways connecting the middle temporal gyrus with the inferior parietal lobe. The finding links previous neuroimaging and genetic results and proposes a mechanism underlying variability in reading ability in both normal and impaired readers.
引用
收藏
页码:671 / 676
页数:6
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