Evidence map›Paper›PMID 16709645›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2006

Muscarinic regulation of neonatal rat bladder spontaneous contractions.

Yuen-Keng Ng, William C de Groat, Hsi-Yang Wu

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.0field-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

16 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Cyclic Stretch Promotes Proliferation and Contraction of Human Bladder Smooth Muscle Cells by Cajal-Mediated c-kit Expression in Interstitial Cells.Medical science monitor : international medical journal of experimental and clinical research · 2019
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Urinary bladder function in conscious rat pups: a developmental study.American journal of physiology. Renal physiology · 2012
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

3 authors at 1 institution in 1 country.

Yuen-Keng NgDepartment of Surgery, University of Hong Kong, Hong Kong.
William C de Groat
Hsi-Yang Wu
University of Hong Kong · HK

Funding

AFFERENT MECHANISMS UNDERLYING BLADDER PAINR37DK049430 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DEGROAT, WILLIAM C · 2000 to 2009
$3.0M
Afferent signaling in voiding reflex maturationK08DK065759 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WU, HSI-YANG · 2004 to 2006
$378k
AFFERENT MECHANISMS UNDERLYING BLADDER PAINR01DK049430 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DEGROAT, WILLIAM C · 1994 to 1998
–
NIDDK NIH HHS DK-49430NIDDK NIH HHS DK-65759NIDDK NIH HHS K08 DK065759NIDDK NIH HHS R01 DK049430NIDDK NIH HHS R37 DK049430
6 · The paper itself

Abstract

In vitro preparations of whole urinary bladders of neonatal rats exhibit prominent myogenic spontaneous contractions, the amplitude and frequency of which can be increased by muscarinic agonists. The muscarinic receptor subtype responsible for this facilitation was examined in the present experiments. Basal spontaneous contractions in bladders from 1- to 2-wk-old Sprague-Dawley rats were not affected by M2 or M3 receptor antagonists. However, administration of 0.5 microM physostigmine, an anticholinesterase agent that increases the levels of endogenous acetylcholine, or 50-100 nM carbachol, a cholinergic agonist at low concentrations, which did not cause tonic contractions, significantly augmented the frequency and amplitude of spontaneous contractions. Blockade of M2 receptors with 0.1 microM AF-DX 116 or 1 microM methoctramine or blockade of M3 receptors with 50 nM 4-diphenylacetoxy-N-methylpiperidine methiodide or 0.1 microM 4-diphenylacetoxy-N-(2-chloroethyl)piperidine hydrochloride (4-DAMP mustard) reversed the physostigmine and carbachol responses. M2 and M3 receptor blockade did not alter the facilitation of spontaneous contractions induced by 10 nM BAY K 8644, an L-type Ca2+ channel opener, or 0.1 microM iberiotoxin, a large-conductance Ca2+-activated K+ channel blocker. NS-1619 (30 microM), a large-conductance Ca2+-activated K+ channel opener, decreased carbachol-augmented spontaneous contractions. These results suggest that spontaneous contractions in the neonatal rat bladder are enhanced by activation of M2 and M3 receptors by endogenous acetylcholine released in the presence of an anticholinesterase agent or a cholinergic receptor agonist.

Indexed as

3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterAnimalsAnimals, NewbornCalcium Channel AgonistsCarbacholCholinergic AgonistsCholinesterase InhibitorsDiaminesElectric StimulationMuscle ContractionMuscle HypertoniaMuscle, SmoothParasympatholyticsPeptidesPhysostigminePiperidines3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester4-diphenylacetoxy-1,1-dimethylpiperidiniumCalcium Channel AgonistsCarbacholCholinergic AgonistsCholinesterase InhibitorsDiaminesiberiotoxinmethoctramineotenzepadParasympatholyticsPeptidesPhysostigminePiperidinesPirenzepineReceptor, Muscarinic M2Receptor, Muscarinic M3

Identifiers

PMID16709645
PMCPMC3111964
OpenAlexW2119241398

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.