Evidence map›Paper›PMID 35368277›Full record

ArticleFrontiers in neuroscience2022

Sympathetic Pathways Target Cholinergic Neurons in the Human Colonic Myenteric Plexus.

Dominic R Parker, Lukasz Wiklendt, Adam Humenick, Bao Nan Chen, Tiong Cheng Sia, David A Wattchow, Phil G Dinning, Simon J H Brookes

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. The enteric nervous system.Physiological reviews · 2023
    Review
  9. Circadian rhythms in colonic function.Frontiers in physiology · 2023
    Review
  10. 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

8 authors at 2 institutions in 1 country.

Dominic R ParkerLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Lukasz WiklendtLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Adam HumenickLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Bao Nan ChenLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Tiong Cheng SiaColorectal Surgical Unit, Division of Surgery, Flinders Medical Centre, Bedford Park, SA, Australia.
David A WattchowLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Phil G DinningLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Simon J H BrookesLaboratory of Neurogastroenterology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia.
Flinders University · AUFlinders Medical Centre · AU

Funding

Comprehensive Structural and Functional Mapping of Mammalian Colonic Nervous SystemOT2OD024899 · OD · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MULUGETA, MILLION, TACHE, YVETTE FRANCE · 2017 to 2021
$13.1M
NIH HHS OT2 OD024899
6 · The paper itself

Abstract

Background: The sympathetic nervous system inhibits human colonic motility largely by effects on enteric neurons. Noradrenergic axons, which branch extensively in the myenteric plexus, are integral to this modulatory role, but whether they contact specific types of enteric neurons is unknown. The purpose of this study was to determine the association of noradrenergic varicosities with types of enteric neurons. Methods: Human colonic tissue from seven patients was fixed and dissected prior to multi-layer immunohistochemistry for human RNA binding proteins C and D (HuC/D) (pan-neuronal cell body labelling), tyrosine hydroxylase (TH, catecholaminergic labelling), Enkephalin (ENK), choline acetyltransferase (ChAT, cholinergic labelling) and/or nitric oxide synthase (NOS, nitrergic labelling) and imaged using confocal microscopy. TH-immunoreactive varicose nerve endings and myenteric cell bodies were reconstructed as three dimensional digital images. Data was exported to a purpose-built software package which quantified the density of varicosities close to the surface of each myenteric cell body. Results: TH-immunoreactive varicosities had a greater mean density within 1 μm of the surface of ChAT +/NOS- nerve cell bodies compared with ChAT-/NOS + cell bodies. Similarly, ENK-immunoreactive varicosities also had a greater mean density close to ChAT +/NOS- cell bodies compared with ChAT-/NOS + cells. Conclusion: A method for quantifying close associations between varicosities and nerve cell bodies was developed. Sympathetic axons in the myenteric plexus preferentially target cholinergic excitatory cells compared to nitrergic neurons (which are largely inhibitory). This connectivity is likely to be involved in inhibitory modulation of human colonic motility by the sympathetic nervous system.

Indexed as

colonenteric nervous systemgastrointestinal motilityhumanmyenteric plexussympathetic nervous system

Identifiers

PMID35368277
PMCPMC8970288
OpenAlexW4221130498

What OpenQuestion holds

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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.