Evidence map›Paper›PMID 28321710›Full record

Trial reportJournal of thrombosis and thrombolysis2017

Association between TLR9 rs5743836 polymorphism and risk of recurrent venous thromboembolism.

Abrar Ahmad, Kristina Sundquist, Bengt Zöller, Peter J Svensson, Jan Sundquist, Ashfaque A Memon

Abstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Journal of thrombosis and thrombolysis, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Immune cell-mediated venous thrombus resolution.Research and practice in thrombosis and haemostasis · 2023
    Review
  2. Review
  3. Resolution of Deep Venous Thrombosis: Proposed Immune Paradigms.International journal of molecular sciences · 2020
    Review
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

6 authors.

Abrar AhmadDepartment of Clinical Sciences, Center for Primary Health Care Research, Lund University/Skåne University Hospital, Malmö, Sweden. abrar.ahmad@med.lu.se.ORCID http://orcid.org/0000-0002-6308-952X
Kristina SundquistDepartment of Clinical Sciences, Center for Primary Health Care Research, Lund University/Skåne University Hospital, Malmö, Sweden.
Bengt ZöllerDepartment of Clinical Sciences, Center for Primary Health Care Research, Lund University/Skåne University Hospital, Malmö, Sweden.
Peter J SvenssonDepartment of Coagulation Disorders, Skåne University Hospital, Lund University, Malmö, Sweden.
Jan SundquistDepartment of Clinical Sciences, Center for Primary Health Care Research, Lund University/Skåne University Hospital, Malmö, Sweden.
Ashfaque A MemonDepartment of Clinical Sciences, Center for Primary Health Care Research, Lund University/Skåne University Hospital, Malmö, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent gene knockout studies on mice have shown the role of toll-like receptor 9 (TLR9) in resolution of venous thromboembolism (VTE) through sterile inflammation. However, the role of a putative functional TLR9 polymorphism (rs5743836) in risk assessment of VTE recurrence remains unknown. The aim of our study was to investigate the TLR9 rs5743836 polymorphism in VTE patients and its association with the risk of VTE recurrence. We analyzed TLR9 rs5743836 polymorphism in Malmö thrombophilia study patients; a prospective follow-up study of 1465 VTE patients by Taqman PCR. From a total of 1465 VTE patients, those who had VTE before inclusion and those who died or had VTE recurrence during anticoagulant treatment were excluded (n = 415). Cox regression analyses were performed on the remaining 1050 VTE patients, including 126 (12.5%) patients that had recurrent VTE during follow-up period. TLR9 polymorphism was significantly associated with higher risk of VTE recurrence in female patients (HR 3.46, 95% CI 1.06-11.33) independent of acquired risk factors for VTE, family history, risk of thrombophilia and deep vein thrombosis (DVT) location. Similarly, in unprovoked VTE patients, TLR9 polymorphism was significantly associated with higher risk of VTE recurrence in female patients (HR 5.94, 95% CI 1.25-28.13) after adjusting for family history, risk of thrombophilia and DVT location. No association between TLR9 polymorphism and risk of VTE recurrence was found in male patients. Our results suggest that TLR9 rs5743836 polymorphism is an independent risk factor for VTE recurrence in female patients but not in males.

Indexed as

Polymorphism, GeneticSex CharacteristicsVenous ThromboembolismAgedAged, 80 and overFemaleFollow-Up StudiesHumansMaleMiddle AgedProspective StudiesRecurrenceRisk FactorsSex FactorsToll-Like Receptor 9TLR9 protein, humanToll-Like Receptor 9Multivariate analysisRecurrent VTEToll-like receptor

Identifiers

PMID28321710
PMCPMC5486891

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Registered trials

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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.