Evidence map›Paper›PMID 34689›Full record

ArticleThe Journal of pharmacy and pharmacology1979

The gastrointestinal absorption of paracetamol in the rat.

W E Bagnall, J Kelleher, B E Walker, M S Losowsky

Abstract read
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In one paragraph

Article in The Journal of pharmacy and pharmacology, 1979. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Paracetamol: a focus for the general pediatrician.European journal of pediatrics · 2014
    Review
  8. Article
  9. Article
  10. Time-dependent variations in the organ extraction ratios of acetaminophen in rat.Journal of pharmacokinetics and biopharmaceutics · 1987
    Article
  11. Kinetics and metabolism of paracetamol and phenacetin.British journal of clinical pharmacology · 1980
    Review
  12. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

W E Bagnall
J Kelleher
B E Walker
M S Losowsky

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The absorption of [3H]paracetamol by rat small intestine, colon and stomach was studied in vivo and in vitro. Small intestinal in vivo studies, using a wide range of drug concentrations, showed that absorption was efficient and uniform throughout the small bowel, no site showing preferential absorption. Double reciprocal and direct plots indicated first order kinetics. The pattern was not observed when uptake was occurring from high concentrations of paracetamol in suspension. Gastric and colonic in vivo studies showed that there was appreciable absorption of [3H]paracetamol from these sites. In vitro studies using everted intestinal sacs showed no effect on paracetamol transfer when the incubation temperature was lowered to 10 degrees C or when iodoacetate (5 X 10(-2)M) and 2.4 dinitrophenol (5 X 10(-4)M) was added to the incubation medium. There was, however, a significant reduction in transfer of paracetamol against a concentration gradient of 10:1 applied across the mucosa. These data suggest that the uptake of paracetamol is by a passive transport process and confirm the efficiency of paracetamol absorption observed indirectly by others.

Indexed as

AcetaminophenAnimalsColonDinitrophenolsFemaleGastric MucosaIntestinal AbsorptionIntestine, SmallIn Vitro TechniquesIodoacetatesRatsAcetaminophenDinitrophenolsIodoacetates

Identifiers

What OpenQuestion holds

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Registered trials

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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.