Evidence map›Paper›PMID 22691178›Full record

ArticleActa physiologica (Oxford, England)2013

Alteration in TRPV1 and Muscarinic (M3) receptor expression and function in idiopathic overactive bladder urothelial cells.

L A Birder, A S Wolf-Johnston, Y Sun, T C Chai

Open access · greenAbstract read
In one paragraph

Article in Acta physiologica (Oxford, England), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 46 citations in OpenAlex.

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  20. TRP channels in lower urinary tract dysfunction.British journal of pharmacology · 2014
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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

4 authors at 2 institutions in 1 country.

L A BirderDepartment of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA. lbirder@pitt.edu
A S Wolf-Johnston
Y Sun
T C Chai
University of Maryland, Baltimore · USUniversity of Pittsburgh · US

Funding

ROLE OF NITRIC OXIDE IN INTERSTITIAL CYSTITISR01DK057284 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BIRDER, LORI A · 2000 to 2014
$4.3M
Nitric Oxide in Bladder Neural-Epithelial SignalingR37DK054824 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BIRDER, LORI A · 2007 to 2016
$3.0M
Univ of Maryland Baltimore Interdisciplinary Research Center in Benign UrologyP20DK090985 · NIDDK · UNIVERSITY OF MARYLAND BALTIMORE · PI BIRDER, LORI A, CHAI, TOBY C · 2010 to 2011
$484k
NIDDK NIH HHS 5P20 DK90985NIDDK NIH HHS P20 DK090985NIDDK NIH HHS R01 DK057284NIDDK NIH HHS R37 DK054824NIDDK NIH HHS R37 DK54824-12
6 · The paper itself

Abstract

aimTo examine function of both cholinergic (muscarinic) and TRPV1 receptors in human bladder urothelial (HBUC) from non-neurogenic overactive bladder (OAB) patients as compared to control subjects.

methodsPrimary HBUC cultures were derived from cystoscopic biopsies from OAB and control subjects. Muscarinic and TRPV1 function was assessed by acetylcholine (5 μm) or capsaicin (0.5 μm) evoked ATP release, measured by luciferase assay. Overall, expression of TRPV1 and muscarinic M3 receptors in bladder urothelial cells was accomplished using western immunoblotting.

resultsOur findings revealed that the response to acetylcholine in OAB HBUC cultures (which was blocked by the nonselective muscarinic antagonist, atropine methyl nitrate or AMN) was not significantly different than from controls. The acetylcholine M3 receptor was slightly decreased as compared to control. In contrast, OAB HBUC cultures exhibited a capsaicin hypersensitivity and augmented release of ATP (3.2 fold higher), which was blocked by the antagonist capsazepine. The increase in capsaicin sensitivity correlated with increased urothelial TRPV1 expression.

conclusionThough characterized in a small number of subjects, augmented release of urothelial-derived transmitters such as ATP could 'amplify' signalling between and within urothelial cells and nearby afferent nerves.

Indexed as

AcetylcholineAdenosine TriphosphateAdultCapsaicinCholinergic AgonistsEpithelial CellsHumansMiddle AgedPrimary Cell CultureReceptor, Muscarinic M3Sensory System AgentsStimulation, ChemicalTRPV Cation ChannelsUrinary Bladder, OveractiveUrotheliumAcetylcholineAdenosine TriphosphateCapsaicinCholinergic AgonistsReceptor, Muscarinic M3Sensory System AgentsTRPV1 protein, humanTRPV Cation Channels

Identifiers

PMID22691178
PMCPMC3494763
OpenAlexW2031353654

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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.