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Genome Analyses of >200,000 Individuals Identify 58 Loci for Chronic Inflammation and Highlight Pathways that Link Inflammation and Complex Disorders

Lifelines Cohort Study, Ligthart, S., Vaez, A., Võsa, U., Stathopoulou, M. G., de Vries, P. S., Prins, B. P., Van der Most, P. J., Tanaka, T., Naderi, E., Rose, L. M., Wu, Y., Karlsson, R., Barbalic, M., Lin, H., Pool, R., Zhu, G., Macé, A., Sidore, C., Trompet, S., Mangino, M., Sabater-Lleal, M., Kemp, J. P., Abbasi, A., Kacprowski, T., Verweij, N., Smith, A. V., Huang, T., Marzi, C., Feitosa, M. F., Lohman, K. K., Kleber, M. E., Milaneschi, Y., Huq, M., Zhao, J. H. & Amini, M., 1-Nov-2018, In : American Journal of Human Genetics. 103, 5, p. 691-706 16 p.

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  • Genome Analyses of >200,000 Individuals Identify 58 Loci for Chronic Inflammation and Highlight Pathways that Link Inflammation and Complex Disorders

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DOI

  • Lifelines Cohort Study
  • Symen Ligthart
  • Ahmad Vaez
  • Urmo Võsa
  • Maria G Stathopoulou
  • Paul S de Vries
  • Bram P Prins
  • Peter J Van der Most
  • Toshiko Tanaka
  • Elnaz Naderi
  • Lynda M Rose
  • Ying Wu
  • Robert Karlsson
  • Maja Barbalic
  • Honghuang Lin
  • René Pool
  • Gu Zhu
  • Aurélien Macé
  • Carlo Sidore
  • Stella Trompet
  • Massimo Mangino
  • Maria Sabater-Lleal
  • John P Kemp
  • Ali Abbasi
  • Tim Kacprowski
  • Niek Verweij
  • Albert V Smith
  • Tao Huang
  • Carola Marzi
  • Mary F Feitosa
  • Kurt K Lohman
  • Marcus E Kleber
  • Yuri Milaneschi
  • Mahmudul Huq
  • Jing Hua Zhao
  • Marzyeh Amini

C-reactive protein (CRP) is a sensitive biomarker of chronic low-grade inflammation and is associated with multiple complex diseases. The genetic determinants of chronic inflammation remain largely unknown, and the causal role of CRP in several clinical outcomes is debated. We performed two genome-wide association studies (GWASs), on HapMap and 1000 Genomes imputed data, of circulating amounts of CRP by using data from 88 studies comprising 204,402 European individuals. Additionally, we performed in silico functional analyses and Mendelian randomization analyses with several clinical outcomes. The GWAS meta-analyses of CRP revealed 58 distinct genetic loci (p <5 x 10(-8)). After adjustment for body mass index in the regression analysis, the associations at all except three loci remained. The lead variants at the distinct loci explained up to 7.0% of the variance in circulating amounts of CRP. We identified 66 gene sets that were organized in two substantially correlated clusters, one mainly composed of immune pathways and the other characterized by metabolic pathways in the liver. Mendelian randomization analyses revealed a causal protective effect of CRP on schizophrenia and a risk-increasing effect on bipolar disorder. Our findings provide further insights into the biology of inflammation and could lead to interventions for treating inflammation and its clinical consequences.

Original languageEnglish
Pages (from-to)691-706
Number of pages16
JournalAmerican Journal of Human Genetics
Volume103
Issue number5
Publication statusPublished - 1-Nov-2018

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