Evidence map›Paper›PMID 8692899›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1996

Inverse agonism of histamine H2 antagonist accounts for upregulation of spontaneously active histamine H2 receptors.

M J Smit, R Leurs, A E Alewijnse, J Blauw, G P Van Nieuw Amerongen, Y Van De Vrede, E Roovers, H Timmerman

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 245 citations in OpenAlex.

  1. Article
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  6. Article
  7. The Roles of Cardiovascular HFrontiers in pharmacology · 2021
    Review
  8. Article
  9. Review
  10. Making Sense of Pharmacology: Inverse Agonism and Functional Selectivity.The international journal of neuropsychopharmacology · 2018
    Review
  11. Can HBritish journal of clinical pharmacology · 2018
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
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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

8 authors at 2 institutions in 2 countries.

M J SmitLeiden/Amsterdam Center for Drug Research, Department of Pharmacochemistry, Vrije Universiteit, Amsterdam, The Netherlands.
R Leurs
A E Alewijnse
J Blauw
G P Van Nieuw Amerongen
Y Van De Vrede
E Roovers
H Timmerman
Vrije Universiteit Amsterdam · NLInstitute of Medicinal Plant Development · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Histamine H2 receptors transfected in Chinese hamster ovary (CHO) cells are time- and dose-dependently upregulated upon exposure to the H2 antagonists cimetidine and ranitidine. This effect appears to be H2 receptor-mediated as no change in receptor density was observed after H1 or H3 antagonist treatment or after incubation with the structural analogue of cimetidine, VUF 8299, which has no H2 antagonistic effects. By using transfected CHO cells expressing different densities of wild-type H2 receptors or an uncoupled H2Leu124Ala receptor, the histamine H2 receptor was found to display considerable agonist-independent H2 receptor activity. Cimetidine and ranitidine, which both induce H2 receptor upregulation, actually functioned as inverse agonists in those cell lines displaying spontaneous agonist-independent H2 receptor activity. Burimamide, on the other hand, was shown to act as a neutral antagonist and did as expected not induce H2 receptor upregulation after long-term exposure. The displayed inverse agonism of H2 antagonists appears to be a mechanistic basis for the observed H2 antagonist-induced H2 receptor upregulation in transfected CHO cells. These observations shed new light on the pharmacological classification of the H2 antagonists and may offer a plausible explanation for the observed development of tolerance after prolonged clinical use.

Indexed as

Up-RegulationAnimalsBurimamideCHO CellsCimetidineColforsinCricetinaeCyclic AMPHistamine AgonistsHistamine H2 AntagonistsRanitidineReceptors, Histamine H2TransfectionBurimamideCimetidineColforsinCyclic AMPHistamine AgonistsHistamine H2 AntagonistsRanitidineReceptors, Histamine H2

Identifiers

PMID8692899
PMCPMC39108
OpenAlexW2114534060

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.