Evidence map›Paper›PMID 25353308›Full record

ArticleJournal of thrombosis and haemostasis : JTH2015

Plasma free fatty acid levels influence Zn(2+) -dependent histidine-rich glycoprotein-heparin interactions via an allosteric switch on serum albumin.

O Kassaar, U Schwarz-Linek, C A Blindauer, A J Stewart

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.7field-weighted citation impact, top 30% 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

28 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Properties of the major ZnChemical communications (Cambridge, England) · 2025
    Article
  4. Article
  5. Binding and detoxification efficiency of albumin decline after haemodialysis.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2024
    Article
  6. Article
  7. ZnInternational journal of molecular sciences · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Strategies for Therapeutic Amelioration of Aberrant Plasma ZnInternational journal of molecular sciences · 2022
    Review
  14. Albumin-mediated extracellular zinc speciation drives cellular zinc uptake.Chemical communications (Cambridge, England) · 2022
    Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

O KassaarSchool of Medicine, University of St Andrews, St Andrews, UK.
U Schwarz-Linek
C A Blindauer
A J Stewart
University of St Andrews · GBUniversity of Warwick · GB

Funding

Biotechnology and Biological Sciences Research Council BB/J006467/1British Heart Foundation FS/10/036/28352British Heart Foundation FS/10/36/28352
6 · The paper itself

Abstract

backgroundHistidine-rich glycoprotein (HRG) regulates coagulation through its ability to bind and neutralize heparins. HRG associates with Zn(2+) to stimulate HRG-heparin complex formation. Under normal conditions, the majority of plasma Zn(2+) associates with human serum albumin (HSA). However, free fatty acids (FFAs) allosterically disrupt Zn(2+) binding to HSA. Thus, high levels of circulating FFAs, as are associated with diabetes, obesity, and cancer, may increase the proportion of plasma Zn(2+) associated with HRG, contributing to an increased risk of thrombotic disease.

objectivesTo characterize Zn(2+) binding by HRG, examine the influence that FFAs have on Zn(2+) binding by HSA, and establish whether FFA-mediated displacement of Zn(2+) from HSA may influence HRG-heparin complex formation.

methodsZn(2+) binding to HRG and to HSA in the presence of different FFA (myristate) concentrations were examined by isothermal titration calorimetry (ITC) and the formation of HRG-heparin complexes in the presence of different Zn(2+) concentrations by both ITC and ELISA. RESULTS AND

conclusionsWe found that HRG possesses 10 Zn(2+) sites (K' = 1.63 × 10(5) ) and that cumulative binding of FFA to HSA perturbed its ability to bind Zn(2+) . Also Zn(2+) binding was shown to increase the affinity with which HRG interacts with unfractionated heparins, but had no effect on its interaction with low molecular weight heparin (~ 6850 Da). [Correction added on 1 December 2014, after first online publication: In the preceding sentence, "6850 kDa" was corrected to "6850 Da".] Speciation modeling of plasma Zn(2+) based on the data obtained suggests that FFA-mediated displacement of Zn(2+) from serum albumin would be likely to contribute to the development of thrombotic complications in individuals with high plasma FFA levels.

Indexed as

AnimalsAnticoagulantsBinding, CompetitiveBinding SitesFatty Acids, NonesterifiedHeparinHeparin, Low-Molecular-WeightHistidine-Rich GlycoproteinHumansModels, MolecularMyristic AcidProtein BindingProtein ConformationProteinsRabbitsRisk FactorsALB protein, humanAnticoagulantsFatty Acids, NonesterifiedHeparinHeparin, Low-Molecular-WeightHistidine-Rich GlycoproteinMyristic AcidProteinsSerum AlbuminSerum Albumin, HumanZincfatty acidsheparinhistidine-rich glycoproteinplasma albuminzinc

Identifiers

PMID25353308
PMCPMC4309485
OpenAlexW2028950712

What OpenQuestion holds

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LicenceCC BY
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.