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Sökning: WFRF:(Ittermann Bernd) > (2015)

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1.
  • Ruggeri, Barbara, et al. (författare)
  • Association of Protein Phosphatase PPM1G With Alcohol Use Disorder and Brain Activity During Behavioral Control in a Genome-Wide Methylation Analysis
  • 2015
  • Ingår i: American Journal of Psychiatry. - 0002-953X .- 1535-7228. ; 172:6, s. 543-552
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: The genetic component of alcohol use disorder is substantial, but monozygotic twin discordance indicates a role for nonheritable differences that could be mediated by epigenetics. Despite growing evidence associating epigenetics and psychiatric disorders, it is unclear how epigenetics, particularly DNA methylation, relate to brain function and behavior, including drinking behavior. Method: The authors carried out a genome-wide analysis of DNA methylation of 18 monozygotic twin pairs discordant for alcohol use disorder and validated differentially methylated regions. After validation, the authors characterized these differentially methylated regions using personality trait assessment and functional MRI in a sample of 499 adolescents. Results: Hypermethylation in the 3'-protein-phosphatase-1G (PPM1G) gene locus was associated with alcohol use disorder. The authors found association of PPM1G hypermethylation with early escalation of alcohol use and increased impulsiveness. They also observed association of PPM1G hypermethylation with increased blood-oxygen-level-dependent response in the right subthalamic nucleus during an impulsiveness task. Conclusions: Overall, the authors provide first evidence for an epigenetic marker associated with alcohol consumption and its underlying neurobehavioral phenotype.
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2.
  • Calamante, Fernando, et al. (författare)
  • MR System Operator: Recommended Minimum Requirements for Performing MRI in Human Subjects in a Research Setting
  • 2015
  • Ingår i: Journal of Magnetic Resonance Imaging. - : John Wiley and Sons Inc.. - 1522-2586. ; 41:4, s. 899-902
  • Forskningsöversikt (refereegranskat)abstract
    • This article is intended to provide guidelines for the minimum level of safety and operational knowledge that an MR system operator should exhibit in order to safely perform an MR procedure in a human subject in a research setting. This article represents the position of the International Society for Magnetic Resonance in Medicine (ISMRM) regarding this important topic and was developed by members of this society's MR Safety Committee. J. Magn. Reson. Imaging 2015;41:899-902. (c) 2014 Wiley Periodicals, Inc.
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