COL4A2 is associated with lacunar ischemic stroke and deep ICH: Meta-analyses among 21,500 cases and 40,600 controls

  • Kristiina Rannikme
  • , Vhinoth Sivakumaran
  • , Henry Millar
  • , Rainer Malik
  • , Christopher D. Anderson
  • , Mike Chong
  • , Tushar Dave
  • , Guido J. Falcone
  • , Israel Fernandez-Cadenas
  • , Jordi Jimenez-Conde
  • , Arne Lindgren
  • , Joan Montaner
  • , Martin O'Donnell
  • , Guillaume Paré
  • , Farid Radmanesh
  • , Natalia S. Rost
  • , Agnieszka Slowik
  • , Martin Söderholm
  • , Matthew Traylor
  • , Sara L. Pulit
  • Sudha Seshadri, Brad B. Worrall, Daniel Woo, Hugh S. Markus, Braxton D. Mitchell, Martin Dichgans, Jonathan Rosand, Cathie L.M. Sudlow

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

Objective: To determine whether common variants in familial cerebral small vessel disease (SVD) genes confer risk of sporadic cerebral SVD. Methods: We meta-analyzed genotype data from individuals of European ancestry to determine associations of common single nucleotide polymorphisms (SNPs) in 6 familial cerebral SVD genes (COL4A1, COL4A2, NOTCH3, HTRA1, TREX1, and CECR1) with intracerebral hemorrhage (ICH) (deep, lobar, all; 1,878 cases, 2,830 controls) and ischemic stroke (IS) (lacunar, cardioembolic, large vessel disease, all; 19,569 cases, 37,853 controls). We applied data quality filters and set statistical significance thresholds accounting for linkage disequilibrium and multiple testing. Results: A locus in COL4A2 was associated (significance threshold p , 3.5 3 1024) with both lacunar IS (lead SNP rs9515201: odds ratio [OR] 1.17, 95%confidence interval [CI] 1.11-1.24, p 56.62 31028) and deep ICH (lead SNP rs4771674: OR 1.28, 95%CI 1.13-1.44, p 55.76 3 1025). A SNP in HTRA1 was associated (significance threshold p , 5.5 3 1024) with lacunar IS (rs79043147: OR 1.23, 95%CI 1.10-1.37, p 5 1.90 3 1024) and less robustly with deep ICH. There was no clear evidence for association of common variants in either COL4A2 or HTRA1 with non-SVD strokes or in any of the other genes with any stroke phenotype.

Original languageEnglish (US)
Pages (from-to)1829-1839
Number of pages11
JournalNeurology
Volume89
Issue number17
DOIs
StatePublished - Oct 24 2017
Externally publishedYes

ASJC Scopus subject areas

  • Clinical Neurology

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