Evidence map›Paper›PMID 20031623›Full record

ArticleCirculation. Cardiovascular genetics2009

EPHB4 gene polymorphisms and risk of intracranial hemorrhage in patients with brain arteriovenous malformations.

Shantel Weinsheimer, Helen Kim, Ludmila Pawlikowska, Yongmei Chen, Michael T Lawton, Stephen Sidney, Pui-Yan Kwok, Charles E McCulloch, William L Young

Open access · bronzeAbstract read
In one paragraph

Article in Circulation. Cardiovascular genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Towards precision medicine for brain arteriovenous malformations.The Journal of clinical investigation · 2026
    Review
  3. Review
  4. Childhood stroke.Nature reviews. Disease primers · 2022
    Review
  5. Review of treatment and therapeutic targets in brain arteriovenous malformation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Shantel WeinsheimerCenter for Cerebrovascular Research, University of California, San Francisco, Calif 94110, USA.
Helen Kim
Ludmila Pawlikowska
Yongmei Chen
Michael T Lawton
Stephen Sidney
Pui-Yan Kwok
Charles E McCulloch
William L Young
Kaiser Permanente · US

Funding

Underlying mechanisms for the pro-angiogenic phenotype of AVMsP01NS044155 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI YOUNG, WILLIAM L · 2003 to 2013
$12.8M
PREDICTORS OF SPONTANEOUS CEREBRAL AVM HEMORRHAGER01NS034949 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KIM, HELEN · 1995 to 2017
$6.5M
Comprehensive Anesthesia Research TrainingT32GM008440 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Judith Hellman · 1996 to 2026
$5.5M
Genetic influences on clinical outcome in brain arteriovenous malformationsK23NS058357 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KIM, HELEN · 2008 to 2012
$813k
NIGMS NIH HHS T32 GM008440NINDS NIH HHS K23 NS058357NINDS NIH HHS P01 NS044155NINDS NIH HHS R01 NS034949PHS HHS NRSAT32
6 · The paper itself

Abstract

backgroundBrain arteriovenous malformations (BAVMs) are a tangle of abnormal vessels directly shunting blood from the arterial to venous circulation and an important cause of intracranial hemorrhage (ICH). EphB4 is involved in arterial-venous determination during embryogenesis; altered signaling could lead to vascular instability resulting in ICH. We investigated the association of single-nucleotide polymorphisms (SNPs) and haplotypes in EPHB4 with risk of ICH at clinical presentation in patients with BAVM. METHODS AND

resultsEight haplotype-tagging SNPs spanning approximately 29 kb were tested for association with ICH presentation in 146 white patients with BAVM (phase I: 56 ICH, 90 non-ICH) using allelic, haplotypic, and principal components analysis. Associated SNPs were then genotyped in 102 additional cases (phase II: 37 ICH, 65 non-ICH), and data were combined for multivariable logistic regression. Minor alleles of 2 SNPs were associated with reduced risk of ICH presentation (rs314313_C, P=0.005; rs314308_T, P=0.0004). Overall, haplotypes were also significantly associated with ICH presentation (chi(2)=17.24, 6 df, P=0.008); 2 haplotypes containing the rs314308 T allele (GCCTGGGT, P=0.003; GTCTGGGC, P=0.036) were associated with reduced risk. In principal components analysis, 2 components explained 91% of the variance and complemented haplotype results by implicating 4 SNPs at the 5' end, including rs314308 and rs314313. These 2 SNPs were replicated in the phase II cohort, and combined data resulted in greater significance (rs314313, P=0.0007; rs314308, P=0.00008). SNP association with ICH presentation persisted after adjusting for age, sex, BAVM size, and deep venous drainage.

conclusionsEPHB4 polymorphisms are associated with risk of ICH presentation in patients with BAVM, warranting further study.

Indexed as

Polymorphism, Single NucleotideAdultCohort StudiesCross-Sectional StudiesFemaleHaplotypesHumansIntracranial Arteriovenous MalformationsIntracranial HemorrhagesMaleMiddle AgedReceptor, EphB4Risk FactorsReceptor, EphB4

Identifiers

PMID20031623
PMCPMC2939745
OpenAlexW2152641745

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.