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Sökning: WFRF:(Mecocci P) > Westman E

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  • Elvsashagen, T, et al. (författare)
  • The genetic architecture of human brainstem structures and their involvement in common brain disorders
  • 2020
  • Ingår i: Nature communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 11:1, s. 4016-
  • Tidskriftsartikel (refereegranskat)abstract
    • Brainstem regions support vital bodily functions, yet their genetic architectures and involvement in common brain disorders remain understudied. Here, using imaging-genetics data from a discovery sample of 27,034 individuals, we identify 45 brainstem-associated genetic loci, including the first linked to midbrain, pons, and medulla oblongata volumes, and map them to 305 genes. In a replication sample of 7432 participants most of the loci show the same effect direction and are significant at a nominal threshold. We detect genetic overlap between brainstem volumes and eight psychiatric and neurological disorders. In additional clinical data from 5062 individuals with common brain disorders and 11,257 healthy controls, we observe differential volume alterations in schizophrenia, bipolar disorder, multiple sclerosis, mild cognitive impairment, dementia, and Parkinson’s disease, supporting the relevance of brainstem regions and their genetic architectures in common brain disorders.
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  • Liu, YW, et al. (författare)
  • APOE ε2 allele is associated with larger regional cortical thicknesses and volumes
  • 2010
  • Ingår i: Dementia and geriatric cognitive disorders. - : S. Karger AG. - 1421-9824 .- 1420-8008. ; 30:3, s. 229-237
  • Tidskriftsartikel (refereegranskat)abstract
    • <i>Background:</i> The protective effect of the apolipoprotein E (APOE) &#917;2 allele against Alzheimer’s disease (AD) is controversial. <i>Objective:</i> Our purpose was to clarify if the &#917;2 allele affects regional cortical thicknesses and volumes. <i>Methods:</i> Regional cortical thicknesses and volumes were measured with an automated pipeline in 109 subjects with mild cognitive impairment, 114 AD patients and 105 age-matched healthy controls. <i>Results:</i> In the mild cognitive impairment group, the &#917;2 carriers had thicker regional cortices at the transverse temporal cortex and parahippocampal gyrus than the subjects with &#917;3/&#917;3, and a larger cerebral gray matter and smaller lateral ventricles than the &#917;3/&#917;3 and &#917;4 carriers. In the AD group, the &#917;2 carriers had significantly thicker entorhinal and transverse temporal cortices, a larger whole cerebral gray matter, and smaller lateral ventricles than the subjects with the &#917;3/&#917;3 genotype, and a significantly thicker entorhinal cortex and larger cerebral gray matter than &#917;4 carriers. No APOE2 effect was found in the control group. <i>Conclusion:</i> The APOE &#917;2 allele is associated with larger regional cortical thicknesses and volumes in mild cognitive impairment and AD.
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  • Resultat 1-10 av 46

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