Evidence map›Paper›PMID 2590611›Full record

Trial reportBritish journal of clinical pharmacology1989

Differential effect of aspirin on thromboxane and prostaglandin biosynthesis in man.

J M Ritter, J R Cockcroft, H S Doktor, J Beacham, S E Barrow

Open access · bronzeAbstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 28 citations in OpenAlex.

  1. Niacin and biosynthesis of PGD₂by platelet COX-1 in mice and humans.The Journal of clinical investigation · 2012 · on this map
    Trial
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. 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

5 authors at 1 institution in 1 country.

J M RitterDepartment of Clinical Pharmacology, Royal Postgraduate Medical School, Hammersmith Hospital, London.
J R Cockcroft
H S Doktor
J Beacham
S E Barrow
Hammersmith Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. Effects of a single intravenous dose of aspirin (600 mg) on bradykinin-stimulated prostaglandin (PG) and on thromboxane (TX) biosynthesis were determined in nine healthy male volunteers. Plasma concentrations of 6-oxo-PGF1 alpha and 13,14-dihydro-15-oxo-PGF2 alpha were measured in samples obtained during repeated 10 min intravenous infusions of bradykinin before and up to 6 h after the dose of aspirin. TXB2 was measured in serum from blood allowed to clot at 37 degrees C. 2. Aspirin inhibited bradykinin stimulated PG and platelet TX biosynthesis 0.5 h after the dose. Serum TXB2 remained low, whereas PG synthesis recovered within 6 h. 3. Effects of intravenous sodium salicylate (600 mg) were studied identically in eight subjects. Prostanoid biosynthesis was not inhibited. 4. Biosynthesis of prostacyclin and TXA2 under basal conditions was studied in eight subjects by measuring 2,3-dinor-6-oxo-PGF1 alpha and 2,3-dinor-TXB2 in hourly urine samples obtained during and after intravenous infusion of aspirin and, on a separate occasion, of vehicle. 5. Aspirin infusion reduced urinary excretion of both metabolites greater than 90%, but excretion of 2,3-dinor-6-oxo-PGF1 alpha recovered more rapidly than did that of 2,3-dinor-TXB2. 6. We conclude that cyclo-oxygenase is rapidly synthesised in bradykinin-responsive tissues in vivo and that this reflects similarly rapid enzyme biosynthesis in tissues that produce PGI2 under basal conditions.

Indexed as

6-Ketoprostaglandin F1 alphaAdultAspirinHumansInfusions, IntravenousInjectionsMaleProstaglandinsThromboxane B2Thromboxanes2,3-dinor-6-ketoprostaglandin F1alpha2,3-dinor-thromboxane B26-Ketoprostaglandin F1 alphaAspirinProstaglandinsThromboxane B2Thromboxanes

Identifiers

PMID2590611
PMCPMC1380018
OpenAlexW2044547204

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.