Evidence map›Paper›PMID 7573351›Full record

ArticleThe American journal of pathology1995

Dynamic redistribution of glycoprotein Ib/IX on surface-activated platelets. A second look.

J G White, M D Krumwiede, D J Cocking-Johnson, G Escolar

Abstract read
In one paragraph

Article in The American journal of pathology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.9field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. 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

4 authors at 1 institution in 1 country.

J G WhiteDepartment of Laboratory Medicine, University of Minnesota Medical School, Minneapolis 55455, USA.
M D Krumwiede
D J Cocking-Johnson
G Escolar
University of Minnesota Medical Center · US

Funding

STRUCTURAL PHYSIOLOGY AND PATHOLOGY OF BLOOD PLATELETSR01HL011880 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI WHITE, JAMES G · 1985 to 1986
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STRUCTURAL PHYSIOLOGY, PATHOLOGY OF PLATELETS IN A.D.R01HL049556 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI WHITE, JAMES G · 1992 to 1994
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STRUCTURAL PHYSIOLOGY &PATHOLOGY OF BLOOD PLATELETSR37HL011880 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI WHITE, JAMES G · 1987 to 1996
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NHLBI NIH HHS HL11880NHLBI NIH HHS HL49556
6 · The paper itself

Abstract

The present study has re-evaluated the mobility of glycoprotein Ib/IX (GPIb/IX), the von Willebrand factor receptor, on surface-activated platelets. A previous report employing immunogold cytochemistry with monoclonal and polyclonal antibodies specific for GPIb/IX concluded that the receptor remained stabilized in plasma membranes and did not move during platelet attachment and spreading on formvar grids, despite the observation that immunogold particles marking GPIb/IX were missing from peripheral margins and pseudopods of the surface-activated platelets. Addition of thrombin to surface-activated, spread platelets freed GPIb/IX from its anchor to the membrane and stimulated movement of receptor-ligand complexes into caps over centers of spread platelets. In our investigation, surface-activated platelets, stimulated or not by thrombin, were fixed in a higher concentration of glutaraldehyde than used by the earlier workers before exposure to monoclonal or polyclonal antibody to GPIb/IX, after incubation with the antibody, but before treatment with the immunogold marker, protein A gold (PAG), or after both antibody and PAG. When fixed before exposure to antibody and PAG, GPIb/IX receptors were dispersed evenly over dendritic and spread platelets from edge to edge, including peripheral margins and pseudopods. Thrombin had no influence on distribution of the receptors. Exposure to antiglycocalicin antibody before fixation caused movement of GPIb/IX receptors from peripheral margins of spread cells and pseudopods of dendritic forms. Thrombin treatment did not enhance the movement. Fixation after exposure of surface-activated platelets, treated or not with thrombin, to antibody and PAG caused movement of GPIb/IX receptors into caps over cell centers. Results indicate that central movement of GPIb/IX receptors is unrelated to surface activation, spreading, or thrombin stimulation. Rather, the translocation is caused by the antiglycocalicin antibody and accentuated by PAG.

Indexed as

Platelet ActivationAntibodies, MonoclonalBlood PlateletsCell MembraneHumansImmunohistochemistryPlatelet Aggregation InhibitorsPlatelet Glycoprotein GPIb-IX ComplexTissue DistributionAntibodies, MonoclonalglycocalicinPlatelet Aggregation InhibitorsPlatelet Glycoprotein GPIb-IX Complex

Identifiers

PMID7573351
PMCPMC1871007
OpenAlexW216694268

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.