Evidence map›Paper›PMID 27520434›Full record

ArticleBMC neuroscience2016

Hysteretic behavior of bladder afferent neurons in response to changes in bladder pressure.

Shani E Ross, Zachariah J Sperry, Colin M Mahar, Tim M Bruns

Abstract read
In one paragraph

Article in BMC neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Real-Time Bladder Pressure Estimation for Closed-Loop Control in a Detrusor Overactivity Model.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2019
    Article
  9. Article
  10. Review
  11. Article
  12. 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

4 authors.

Shani E RossDepartment of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA.
Zachariah J SperryDepartment of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA.
Colin M MaharDepartment of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.
Tim M BrunsDepartment of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA. bruns@umich.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMechanosensitive afferents innervating the bladder increase their firing rate as the bladder fills and pressure rises. However, the relationship between afferent firing rates and intravesical pressure is not a simple linear one. Firing rate responses to pressure can differ depending on prior activity, demonstrating hysteresis in the system. Though this hysteresis has been commented on in published literature, it has not been quantified.

resultsSixty-six bladder afferents recorded from sacral dorsal root ganglia in five alpha-chloralose anesthetized felines were identified based on their characteristic responses to pressure (correlation coefficient ≥ 0.2) during saline infusion (2 ml/min). For saline infusion trials, we calculated a maximum hysteresis ratio between the firing rate difference at each pressure and the overall firing rate range (or Hmax) of 0.86 ± 0.09 (mean ± standard deviation) and mean hysteresis ratio (or Hmean) of 0.52 ± 0.13 (n = 46 afferents). For isovolumetric trials in two experiments (n = 33 afferents) Hmax was 0.72 ± 0.14 and Hmean was 0.40 ± 0.14.

conclusionsA comprehensive state model that integrates these hysteresis parameters to determine the bladder state may improve upon existing neuroprostheses for bladder control.

Indexed as

PressureAction PotentialsAfferent PathwaysAnesthetics, IntravenousAnimalsCatsChloraloseGanglia, SpinalMaleMicroelectrodesNeurons, AfferentPhysical StimulationSacrumUrinary BladderAnesthetics, IntravenousChloraloseBladderBladder afferentsBladder pressureDorsal root gangliaHysteresisPelvic nerveUrinary tract

Identifiers

PMID27520434
PMCPMC4983075

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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.