Evidence map›Paper›PMID 26875505›Full record

Observational studyJournal of thrombosis and haemostasis : JTH2016

Aging and ABO blood type influence von Willebrand factor and factor VIII levels through interrelated mechanisms.

S Albánez, K Ogiwara, A Michels, W Hopman, J Grabell, P James, D Lillicrap

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Journal of thrombosis and haemostasis : JTH, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 1% 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

63 citing papers in PubMed, 1 synthesis or guideline pooled it, 144 citations in OpenAlex.

  1. Association Between ABO Blood Type and Risk of Pulmonary Embolism: A Systematic Review and Meta-Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Article
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  8. Article
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  12. Impact of ABO blood type on the risk of atrial fibrillation recurrence after catheter ablation.American heart journal plus : cardiology research and practice · 2024
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Diagnostic pitfalls and conundrums in type 1 von Willebrand disease.Hematology. American Society of Hematology. Education Program · 2022
    Article
  19. [Relationship Between ABO Blood Group and Pregnancy Complications].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2022
    Review
  20. Article

3 more citing papers are in PubMed but not listed here.

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

7 authors at 1 institution in 1 country.

S AlbánezDepartment of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada.
K OgiwaraDepartment of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada.
A MichelsDepartment of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada.
W HopmanDepartment of Public Health Sciences, Queen's University, Kingston, ON, Canada.
J GrabellDepartment of Medicine, Queen's University, Kingston, ON, Canada.
P JamesDepartment of Medicine, Queen's University, Kingston, ON, Canada.
D LillicrapDepartment of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada.
Queen's University · CA

Funding

Zimmerman Program for the Molecular and Clinical Biology of VWDP01HL081588 · NHLBI · VERSITI WISCONSIN, INC. · PI MONTGOMERY, ROBERT R · 2005 to 2016
$19.3M
Comparative Effectiveness in the Diagnosis of VWDR01HL112614 · NHLBI · VERSITI WISCONSIN, INC. · PI ABSHIRE, THOMAS CALVIN, MONTGOMERY, ROBERT R · 2013 to 2018
$4.1M
CIHR MPO 97849NHLBI NIH HHS P01 HL081588NHLBI NIH HHS R01 HL112614
6 · The paper itself

Abstract

unlabelledEssentials von Willebrand factor (VWF) and factor VIII (FVIII) levels are modulated by age and ABO status. The effect of aging and ABO blood type on VWF and FVIII was assessed in 207 normal individuals. Aging and ABO blood type showed combined and bidirectional influences on VWF and FVIII levels. Aging and ABO blood type influence VWF levels through both secretion and clearance mechanisms. SUMMARY: Background The effect of aging and ABO blood type on plasma levels of von Willebrand factor (VWF) and factor VIII (FVIII) have been widely reported; however, a comprehensive analysis of their combined effect has not been performed and the mechanisms responsible for the age-related changes have not been determined. Objectives To assess the influence of aging and ABO blood type on VWF and FVIII levels, and to evaluate the contribution of VWF secretion and clearance to the age-related changes. Methods A cross-sectional observational study was performed in a cohort of 207 normal individuals, whose levels of VWF, FVIII, VWF propeptide (VWFpp), VWFpp/VWF:Ag ratio and blood type A antigen content on VWF (A-VWF) were quantified. Results Aging and ABO blood type exerted interrelated effects on VWF and FVIII plasma levels, because the age-related increase in both proteins was significantly higher in type non-O individuals (β = 0.011 vs. 0.005). This increase with age in non-O subjects drove the differences between blood types in VWF levels, as the mean difference increased from 0.13 U/mL in the young to 0.57 U/mL in the old. Moreover, A-VWF was associated with both VWF antigen (β = 0.29; 95% confidence interval [CI], 0.09, 0.50) and VWF clearance (β = -0.15; 95% CI, -0.25, -0.06). We also documented an effect of ABO blood type on VWF secretion with aging, as old individuals with blood type non-O showed higher levels of VWFpp (mean difference 0.29 U/mL). Conclusions Aging and ABO blood type have an interrelated effect on VWF and FVIII levels, where the effect of one is significantly influenced by the presence of the other.

Indexed as

ABO Blood-Group SystemAgingAdultAgedAged, 80 and overBlood Grouping and CrossmatchingCohort StudiesCross-Sectional StudiesFactor VIIIFemaleGenotypeHumansMaleMiddle Agedvon Willebrand FactorABO Blood-Group SystemF8 protein, humanFactor VIIIvon Willebrand FactorABO blood group systemagingmetabolic clearance ratesecretionvon Willebrand factor

Identifiers

PMID26875505
PMCPMC5949873
OpenAlexW2345520253

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.