Evidence map›Paper›PMID 10766934›Full record

ArticleThe Journal of physiology2000

Mechanisms of excitatory neuromuscular transmission in the guinea-pig urinary bladder.

H Hashitani, N J Bramich, G D Hirst

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

38 citing papers in PubMed, 77 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Electrophysiology of Syncytial Smooth Muscle.Journal of experimental neuroscience · 2019
    Review
  5. Nerve-induced responses of mouse vaginal smooth muscle.Pflugers Archiv : European journal of physiology · 2017
    Article
  6. Big-conductance CaChannels (Austin, Tex.) · 2016
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. BK channel activation by NS11021 decreases excitability and contractility of urinary bladder smooth muscle.American journal of physiology. Regulatory, integrative and comparative physiology · 2010
    Article
  19. Article
  20. 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.

H HashitaniDepartment of Zoology, The University of Melbourne, Parkville, Victoria 3052, Australia. hikaru-h@med.nagoya-cu.ac.jp
N J Bramich
G D Hirst
University of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. In smooth muscle of the guinea-pig bladder, either membrane potential recordings or [Ca2+]i measurements were made simultaneously with isometric tension recordings. 2. Single transmural stimuli initiated excitatory junction potentials (EJPs) which triggered action potentials, transient increases in [Ca2+]i and associated contractions. These responses were abolished by alpha, beta-methylene ATP, suggesting that they resulted from the activation of purinoceptors by neurally released ATP. 3. Nifedipine abolished action potentials leaving the underlying EJPs and reduced the amplitude of both nerve-evoked increases in [Ca2+]i and associated contractions. The subsequent co-application of caffeine and ryanodine inhibited the residual responses without inhibiting EJPs. These results indicate that stimulation of purinoceptors activates both Ca2+ influx through L-type Ca2+ channels and Ca2+ release from intracellular Ca2+ stores. 4. In the presence of alpha, beta-methylene ATP, trains of stimuli failed to initiate EJPs but increased the frequency of action potentials. Trains of stimuli also initiated oscillatory increases in [Ca2+]i and associated contractions. These responses were abolished by hyoscine, indicating that they resulted from the activation of muscarinic receptors by neurally released ACh. 5. Oscillatory increases in [Ca2+]i and associated contractions were inhibited by either nifedipine or caffeine, indicating that the stimulation of muscarinic receptors activates both Ca2+ influx through L-type Ca2+ channels and Ca2+ release from intracellular Ca2+ stores.

Indexed as

Action PotentialsAnimalsCaffeineCalciumCalcium Channel BlockersElectric StimulationFemaleFluorescent DyesFura-2Guinea PigsIn Vitro TechniquesIsometric ContractionMaleMembrane PotentialsMicroelectrodesNeuromuscular JunctionCaffeineCalciumCalcium Channel BlockersFluorescent DyesFura-2fura-PE3NifedipinePhosphodiesterase InhibitorsReceptors, PurinergicRyanodine

Identifiers

PMID10766934
PMCPMC2269883
OpenAlexW2134696085

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.