Evidence map›Paper›PMID 1971256›Full record

ArticleInfection and immunity1990

Signal transduction in human platelets and inflammatory mediator release induced by genetically cloned hemolysin-positive and -negative Escherichia coli strains.

B König, W Schönfeld, J Scheffer, W König

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1990. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 22 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

4 authors at 1 institution in 1 country.

B KönigLehrstuhl für Medizinische Mikrobiologie und Immunologie, Arbeitsgruppe für Infektabwehrmechanismen, Ruhr-Universität Bochum, Federal Republic of Germany.
W Schönfeld
J Scheffer
W König
Ruhr University Bochum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Incubation of human platelets with the hemolysin-producing Escherichia coli strain K-12 (pANN5211) induced the activation of protein kinase C, aggregation of platelets, calcium influx, low amounts of 12-hydroxyeicosatetraenoic acid (12-HETE), and release of serotonin from dense granules. Nonhemolytic isogenic strains of E. coli 536/21 which differed only in their types of adhesins (MSH+ MS-Fim+; S-MRH+ S-Fim+; P-MRH+ P-Fim+) released neither serotonin nor 12-HETE from human platelets nor induced platelet aggregation. All hemolysin-negative bacteria except E. coli 536/21, without any adhesins, were able to activate protein kinase C reversibly but did not induce calcium influx. Activation of platelets with fluoride, an activator of the GTP-binding protein, was associated with protein kinase C activation, calcium influx, platelet aggregation, serotonin release, and 12-HETE formation. The simultaneous stimulation of platelets with NaF and the nonhemolytic E. coli strains suppressed several of the NaF-induced platelet responses. Membrane preparations isolated from stimulated platelets with hemolysin-negative and hemolysin-positive E. coli showed increased binding of guanylylimidodiphosphate, a nonhydrolyzable GTP analog, and enhanced GTPase activity.

Indexed as

Platelet Activation12-Hydroxy-5,8,10,14-eicosatetraenoic AcidAdhesins, Escherichia coliBacterial Outer Membrane ProteinsBlood PlateletsCalciumCell MembraneCloning, MolecularEnzyme ActivationEscherichia coliGTP PhosphohydrolasesGuanylyl ImidodiphosphateHemolysin ProteinsHumansHydroxyeicosatetraenoic AcidsPlatelet Aggregation12-Hydroxy-5,8,10,14-eicosatetraenoic AcidAdhesins, Escherichia coliBacterial Outer Membrane ProteinsCalciumGTP PhosphohydrolasesGuanylyl ImidodiphosphateHemolysin ProteinsHydroxyeicosatetraenoic AcidsProtein Kinase CSerotoninSodium Fluoride

Identifiers

PMID1971256
PMCPMC258683
OpenAlexW2147409348

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.