Evidence map›Paper›PMID 2443536›Full record

ArticleThe Journal of clinical investigation1987

Gray platelet syndrome. Demonstration of alpha granule membranes that can fuse with the cell surface.

J P Rosa, J N George, D F Bainton, A T Nurden, J P Caen, R P McEver

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1987. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 104 citations in OpenAlex.

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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 at 2 institutions in 2 countries.

J P RosaDepartment of Medicine, University of Texas Health Science Center, San Antonio.
J N George
D F Bainton
A T Nurden
J P Caen
R P McEver
The University of Texas Health Science Center at San Antonio · USUniversity of California, San Francisco · US

Funding

Signal-dependent neutrophil adhesion to vascular surfacesR01HL034363 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI MCEVER, RODGER PAUL · 1985 to 2017
$3.9M
CYTOPLASMIC REGULATION OF P-SELECTIN/PSGL-1 INTERACTIONSR37HL034363 · NHLBI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI MCEVER, RODGER PAUL · 1998 to 2007
$3.3M
THE ROLE OF MEMBRANE PROTEINS IN PLATELET FUNCTIONR01HL019996 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI GEORGE, JAMES N · 1985 to 1985
–
IMMUNOCHEMICAL LOCALIZATION OF MEGAKARYOCYTE PROTEINSR01HL031610 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BAINTON, DOROTHY F · 1985 to 1985
–
IMMUNOCYTOCHEMISTRY OF MEGAKARYOCYTES AND PLATELETSR37HL031610 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BAINTON, DOROTHY F · 1986 to 1995
–
NHLBI NIH HHS HL-19996NHLBI NIH HHS HL-31610NHLBI NIH HHS HL-34363
6 · The paper itself

Abstract

Platelets from patients with the gray platelet syndrome have decreased recognizable alpha granules and are markedly deficient in some alpha-granule secretory proteins. Using immunocytochemical techniques with antibodies to an alpha-granule membrane protein, GMP-140, we identified the membranes of intracellular vesicles in gray platelets as alpha-granule membranes. Gray platelets contained normal amounts of GMP-140 as measured by electroimmunoassay. The activation of gray platelets with thrombin caused GMP-140 to be redistributed to the plasma membrane surface, as in normal platelets. In agreement with previous studies, an endogenously synthesized secretory protein, platelet factor 4, was undetectable in gray platelets. However, the alpha-granule proteins albumin and IgG, which are thought to be derived from endocytosis of plasma proteins into megakaryocytes, were present in substantial quantities and were secreted efficiently from gray platelets. Therefore, the fundamental defect in the gray platelet syndrome may be in the targeting of endogenously synthesized secretory proteins to developing alpha granules in megakaryocytes.

Indexed as

Blood Platelet DisordersCytoplasmic GranulesEnzyme-Linked Immunosorbent AssayHumansImmunoelectrophoresisImmunoglobulin GImmunohistochemistryIntracellular MembranesPlatelet Membrane GlycoproteinsP-SelectinSerum AlbuminImmunoglobulin GPlatelet Membrane GlycoproteinsP-SelectinSerum Albumin

Identifiers

PMID2443536
PMCPMC442357
OpenAlexW2119361574

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.