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Prata, DP,Kanaan, RA,Barker, GJ,Shergill, S,Woolley, J,Georgieva, L,Picchioni, MM,Kravariti, E,Walshe, M,Allin, M,Toulopoulou, T,Bramon, E,McDonald, C,Giampietro, V,Murray, RM,Brammer, M,O'Donovan, M,McGuire, P
Human Brain Mapping
Risk variant of oligodendrocyte lineage transcription factor 2 is associated with reduced white matter integrity
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fractional anisotropy diffusion tensor imaging genetics schizophrenia myelin DIFFUSION TENSOR SCHIZOPHRENIA OLIG2 GENES FOREBRAIN SYSTEM IMAGES VOXEL
The oligodendrocyte lineage transcription factor 2 (OLIG2) regulates the genesis of oligodendrocytes, the brain cells responsible for axonal myelination. Although it has been associated with psychiatric and neurological disorders, the impact of this gene on white matter integrity has never been investigated in humans. Using diffusion tensor imaging, we examined the effect of a single nucleotide polymorphism (rs1059004) in OLIG2 previously associated with reduced gene expression, and with psychiatric disorders on fractional anisotropy in 78 healthy subjects. We found that the risk allele (A) was associated with reduced white matter integrity in the corona radiata bilaterally. This is consistent with evidence that it is a schizophrenia susceptibility gene, and suggests that it may confer increased risk through an effect on neuroanatomical connectivity. Hum Brain Mapp 34:2025-2031, 2013. (c) 2011 Wiley Periodicals, Inc.
DOI 10.1002/hbm.22045
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