Evidence map›Paper›PMID 21212665›Full record

ArticleCerebrovascular diseases (Basel, Switzerland)2011

Angiopoietin-like 4 (ANGPTL4) gene polymorphisms and risk of brain arteriovenous malformations.

Bahar Mikhak, Shantel Weinsheimer, Ludmila Pawlikowska, Annie Poon, Pui-Yan Kwok, Michael T Lawton, Yongmei Chen, Jonathan G Zaroff, Stephen Sidney, Charles E McCulloch and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Cerebrovascular diseases (Basel, Switzerland), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.7field-weighted citation impact, top 9% 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, 44 citations in OpenAlex.

  1. Review
  2. Towards precision medicine for brain arteriovenous malformations.The Journal of clinical investigation · 2026
    Review
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
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

12 authors at 2 institutions in 1 country.

Bahar MikhakCenter for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, University of California, San Francisco, 94110, USA.
Shantel Weinsheimer
Ludmila Pawlikowska
Annie Poon
Pui-Yan Kwok
Michael T Lawton
Yongmei Chen
Jonathan G Zaroff
Stephen Sidney
Charles E McCulloch
William L Young
Helen Kim
University of California, San Francisco · USKaiser 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
Upstream Regulators of the prothrombotic stateR01NS041877 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI YOUNG, WILLIAM L · 2000 to 2008
$2.5M
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 GM008440NIGMS NIH HHS T32 GM08440NINDS NIH HHS K23 NS058357NINDS NIH HHS P01 NS044155NINDS NIH HHS R01 NS034949NINDS NIH HHS R01 NS041877
6 · The paper itself

Abstract

backgroundBrain arteriovenous malformations (BAVM) are high-flow vascular lesions prone to intracranial hemorrhage (ICH). Abnormal angiogenesis is a key characteristic of BAVM tissue. Angiopoietin-like 4 (ANGPTL4), a secreted glycoprotein, is thought to be involved in angiogenesis and required for proper postnatal blood vessel partitioning. We investigated whether common single nucleotide polymorphisms (SNPs) in ANGPTL4 were associated with risk of BAVM or ICH. METHODS AND

resultsWe conducted a case-control study of 216 Caucasian BAVM cases and 246 healthy controls, and a secondary case-only analysis, comparing 83 ruptured (ICH) with 133 unruptured BAVM cases at presentation. Four tagSNPs in ANGPTL4 captured variation over a 10-kb region (rs2278236, rs1044250, rs11672433, and rs1808536) and were tested for association with BAVM or ICH. The minor allele (A) of rs11672433 (exon 6, Pro389Pro) was associated with an increased risk of BAVM (p = 0.006), which persisted after adjusting for multiple comparisons (p = 0.03). After adjustments for age and sex, carriers of the minor allele (A) remained at higher risk for BAVM compared to noncarriers (odds ratio, OR = 1.56; 95% confidence interval, CI = 1.01-2.41; p = 0.046) and risk of BAVM was increased with increasing copy of the minor A allele (OR = 1.49, 95% CI = 1.03-2.15; p(trend) = 0.03). Five common haplotypes (frequency >1%) were inferred; overall haplotype distribution differed between BAVM cases and controls (χ(2) = 12.2, d.f. = 4, p = 0.02). Neither SNPs (p > 0.05) nor haplotype distribution (χ(2) = 1.1, d.f. = 4, p = 0.89) were associated with risk of ICH among BAVM cases.

conclusionA synonymous SNP in ANGPTL4 and haplotypes carrying it are associated with risk of BAVM but not with ICH presentation in BAVM cases.

Indexed as

Polymorphism, Single NucleotideAdultAngiopoietin-Like Protein 4AngiopoietinsCaliforniaCase-Control StudiesCerebral AngiographyChi-Square DistributionFemaleGene FrequencyGenetic Predisposition to DiseaseHaplotypesHumansIntracranial Arteriovenous MalformationsIntracranial HemorrhagesLogistic ModelsAngiopoietin-Like Protein 4AngiopoietinsANGPTL4 protein, human

Identifiers

PMID21212665
PMCPMC3030504
OpenAlexW2014295273

What OpenQuestion holds

Textmetadata
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.