Evidence map›Paper›PMID 19378377›Full record

ArticleBritish journal of pharmacology2009

Quantitative analysis of the loss of muscarinic receptors in various peripheral tissues in M1-M5 receptor single knockout mice.

Yoshihiko Ito, Luvsandorj Oyunzul, Masanao Seki, Tomomi Fujino Oki, Minoru Matsui, Shizuo Yamada

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2009. 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
2.7field-weighted citation impact, top 10% 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, 44 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Structure-Activity Relationships of Pan-GαACS chemical neuroscience · 2018
    Article
  6. Muscarinic receptors 2 and 5 regulate bitter response of urethral brush cells via negative feedback.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. 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

6 authors at 2 institutions in 1 country.

Yoshihiko ItoDepartment of Pharmacokinetics and Pharmacodynamics and Global Center of Excellence Program, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Japan.
Luvsandorj Oyunzul
Masanao Seki
Tomomi Fujino Oki
Minoru Matsui
Shizuo Yamada
University of Shizuoka · JPChiba Institute of Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeTo compare loss in binding to muscarinic receptor (mAChR) subtypes with their known functions, the total density of muscarinic receptors was measured in peripheral tissues from wild type (WT) and mAChR knockout (KO) mice. EXPERIMENTAL APPROACH: Binding parameters of [N-methyl-3H]scopolamine methyl chloride ([3H]NMS) were determined in 10 peripheral tissues of WT and M1-M5 receptor KO mice. Competition between [3H]NMS and darifenacin (selective M3 receptor antagonist) was also measured. KEY

resultsThere was an extensive loss of [3H]NMS-binding sites (maximal number of binding sites, Bmax) in heart and smooth muscle from M2KO mice, compared with WT mice. Smooth muscle from M3KO mice also showed a moderate loss of Bmax. Bmax fell in pancreas and bladder of M4KO mice and in prostate in M1KO and M3KO mice. There was a large loss of Bmax in exocrine and endocrine glands of M3KO mice with a moderate decrease in M2KO mice. Darifenacin inhibited specific [3H]NMS binding in submandibular gland and bladder of WT, M2KO and M3KO mice. Ki (inhibition constant) values for darifenacin in the submandibular gland were the same in WT and M2KO mice but increased in M3KO mice. However, Ki values in bladder were decreased in M2KO mice and increased in M3KO mice. CONCLUSIONS AND IMPLICATIONS: Single mAChR KO mice exhibit a loss of mAChR in peripheral tissues that generally paralleled the reported loss of function. Quantitative analysis of data, however, also suggested that, in some instances, normal expression of a receptor subtype depended on expression of other subtypes.

Indexed as

AnimalsBenzofuransBinding SitesMiceMice, KnockoutN-MethylscopolamineOrgan SpecificityPyrrolidinesRadioligand AssayReceptor, Muscarinic M3Receptors, MuscarinicSubmandibular GlandUrinary BladderBenzofuransdarifenacinN-MethylscopolaminePyrrolidinesReceptor, Muscarinic M3Receptors, Muscarinic

Identifiers

PMID19378377
PMCPMC2697689
OpenAlexW1522474914

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.