Evidence map›Paper›PMID 15723094›Full record

ArticleBritish journal of pharmacology2005

Muscarinic receptor subtypes in human bladder detrusor and mucosa, studied by radioligand binding and quantitative competitive RT-PCR: changes in ageing.

Kylie J Mansfield, Lu Liu, Frederick J Mitchelson, Kate H Moore, Richard J Millard, Elizabeth Burcher

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in British journal of pharmacology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
14.2field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 214 citations in OpenAlex.

  1. Review
  2. Article
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  8. [Urine retention-From the symptom to the structure].Urologie (Heidelberg, Germany) · 2023
    Article
  9. Article
  10. [Urine retention-From the symptom to the structure].Zeitschrift fur Gerontologie und Geriatrie · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Anticholinergic medication: Related dry mouth and effects on the salivary glands.Oral surgery, oral medicine, oral pathology and oral radiology · 2021
    Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. MMolecular and cellular endocrinology · 2018
    Article
  20. Review

4 more citing papers are in PubMed but not listed here.

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 4 institutions in 1 country.

Kylie J MansfieldDepartment of Physiology and Pharmacology, University of New South Wales, Sydney, NSW 2052, Australia.
Lu Liu
Frederick J Mitchelson
Kate H Moore
Richard J Millard
Elizabeth Burcher
UNSW Sydney · AUPrince of Wales Hospital · AUSt George Hospital · AUUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. We investigated muscarinic receptors in the detrusor and mucosa of the human bladder body. Radioligand-binding studies with [(3)H]QNB were conducted using specimens collected from patients (36-77 years) with normal bladder function, undergoing surgery. For RT-PCR, biopsies of normal bladder were obtained from patients (30-88 years) undergoing check cystoscopy. 2. Binding of [(3)H]QNB in detrusor (n=20) was of high affinity (K(D) 77.1 (55.2-99.0) pM) and capacity (B(max) 181+/-7 fmol mg protein(-1)). Similar values were obtained in mucosa (n=6) (K(D) 100.5 (41.2-159.9) pM; B(max) 145+/-9 fmol mg protein(-1)). 3. Competition-binding experiments in detrusor membranes with muscarinic receptor antagonists including trospium, darifenacin, 4-DAMP, methoctramine, AQ-RA 741, AF-DX 116 and pirenzepine indicated a receptor population of 71% M(2), 22% M(3) and 7% M(1). In the mucosa, 75% of sites were M(2) receptors, with 25% M(3)/M(5). 4. Using RT-PCR, expression of M(1), M(2), M(3) and M(5) mRNA was demonstrated in both detrusor and mucosa. 5. The presence of a high density of mainly M(2) muscarinic receptors in the mucosa appears to be a novel finding and raises the question of their physiological significance and the source of their endogenous ligand. 6. There was a negative correlation of receptor number (B(max)) with age in detrusor muscle from male patients (P=0.02). Quantitative competitive RT-PCR demonstrated a selective age-related decrease in mRNA for muscarinic M(3) but not M(2) receptors, in both male (P<0.0001) and female (P=0.019) detrusor. These findings correspond with reports of decreased detrusor contractility with ageing.

Indexed as

AdultAgedAgingDose-Response Relationship, DrugFemaleHumansMaleMiddle AgedMucous MembraneProtein BindingProtein IsoformsQuinuclidinyl BenzilateRadioligand AssayReceptors, MuscarinicReverse Transcriptase Polymerase Chain ReactionUrinary BladderProtein IsoformsQuinuclidinyl BenzilateReceptors, Muscarinic

Identifiers

PMID15723094
PMCPMC1576093
OpenAlexW2062212949

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.