Evidence map›Paper›PMID 22238323›Full record

ArticleBlood2012

Aβ delays fibrin clot lysis by altering fibrin structure and attenuating plasminogen binding to fibrin.

Daria Zamolodchikov, Sidney Strickland

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

74 citing papers in PubMed, 109 citations in OpenAlex.

  1. Review
  2. Unveiling the procoagulant state in Alzheimer's disease: A novel PET imaging strategy.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Clot Imaging Using Photostable Nanodiamond.Nanomaterials (Basel, Switzerland) · 2023
    Article
  14. Fibrin-Targeting Immunotherapy for Dementia.The journal of prevention of Alzheimer's disease · 2023
    Article
  15. Review
  16. Fibrin-targeting molecular MRI in inflammatory CNS disorders.European journal of nuclear medicine and molecular imaging · 2022
    Article
  17. Article
  18. Article
  19. Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Daria ZamolodchikovLaboratory of Neurobiology and Genetics, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA.
Sidney Strickland
Rockefeller University · US

Funding

Role of the tPA/plasmin System in Alzheimers DiseaseR01NS050537 · NINDS · ROCKEFELLER UNIVERSITY · PI STRICKLAND, SIDNEY · 2004 to 2015
$5.7M
NINDS NIH HHS NS50537NINDS NIH HHS R01 NS050537
6 · The paper itself

Abstract

Alzheimer disease is characterized by the presence of increased levels of the β-amyloid peptide (Aβ) in the brain parenchyma and cerebral blood vessels. This accumulated Aβ can bind to fibrin(ogen) and render fibrin clots more resistant to degradation. Here, we demonstrate that Aβ(42) specifically binds to fibrin and induces a tighter fibrin network characterized by thinner fibers and increased resistance to lysis. However, Aβ(42)-induced structural changes cannot be the sole mechanism of delayed lysis because Aβ overlaid on normal preformed clots also binds to fibrin and delays lysis without altering clot structure. In this regard, we show that Aβ interferes with the binding of plasminogen to fibrin, which could impair plasmin generation and fibrin degradation. Indeed, plasmin generation by tissue plasminogen activator (tPA), but not streptokinase, is slowed in fibrin clots containing Aβ(42), and clot lysis by plasmin, but not trypsin, is delayed. Notably, plasmin and tPA activities, as well as tPA-dependent generation of plasmin in solution, are not decreased in the presence of Aβ(42). Our results indicate the existence of 2 mechanisms of Aβ(42) involvement in delayed fibrinolysis: (1) through the induction of a tighter fibrin network composed of thinner fibers, and (2) through inhibition of plasmin(ogen)-fibrin binding.

Indexed as

FibrinolysisAmyloid beta-PeptidesEnzyme ActivationFibrinFibrinolysinHumansPlasminogenProtein BindingStreptokinaseSubstrate SpecificityTissue Plasminogen ActivatorAmyloid beta-PeptidesFibrinFibrinolysinPlasminogenStreptokinaseTissue Plasminogen Activator

Identifiers

PMID22238323
PMCPMC3321860
OpenAlexW1999173176

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.