Evidence map›Paper›PMID 21246548›Full record

ArticleThe Journal of comparative neurology2011

Vagal afferent innervation of the proximal gastrointestinal tract mucosa: chemoreceptor and mechanoreceptor architecture.

Terry L Powley, Ryan A Spaulding, Stanley A Haglof

Abstract read
In one paragraph

Article in The Journal of comparative neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

70 citing papers in PubMed, 137 citations in OpenAlex.

  1. Review
  2. Gut-brain communication: types of sensory nerves and mechanisms of activation.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  3. Review
  4. Review
  5. Article
  6. Ghrelin Modulates Voltage-Gated CaMolecular pharmacology · 2024
    Article
  7. Review
  8. Article
  9. Review
  10. The Coding Logic of Interoception.Annual review of physiology · 2024
    Review
  11. Article
  12. Article
  13. Intestinal Enteroendocrine Cells: Present and Future Druggable Targets.International journal of molecular sciences · 2023
    Review
  14. Review
  15. Review
  16. Review
  17. Communication of gut microbiota and brainFrontiers in microbiology · 2023
    Review
  18. Review
  19. Article
  20. Article

10 more citing papers are in PubMed but not listed here.

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.

Terry L PowleyPurdue University Life Sciences Program and Department of Psychological Sciences, Purdue University, West Lafayette, Indiana 47907-2081, USA. powleytl@psych.purdue.edu
Ryan A Spaulding
Stanley A Haglof
Purdue University West Lafayette · US

Funding

HYPOTHALAMIC CONTROL OF BODY WEIGHT AND FEEDINGR01DK027627 · NIDDK · PURDUE UNIVERSITY WEST LAFAYETTE · PI POWLEY, TERRY L. · 1986 to 2021
$6.1M
Autonomic Control of Body Weight and FeedingR37DK027627 · NIDDK · PURDUE UNIVERSITY · PI POWLEY, TERRY L. · 2007 to 2016
$5.5M
THE ANALYTICAL COREP01HD052112 · NICHD · PURDUE UNIVERSITY · PI SWITHERS, SUSAN E · 2007 to 2011
$4.3M
Gastrointestinal Tract Innervation: Patterns of AgingR01DK061317 · NIDDK · PURDUE UNIVERSITY WEST LAFAYETTE · PI POWLEY, TERRY L. · 2002 to 2012
$3.1M
NICHD NIH HHS HD05112NICHD NIH HHS P01 HD052112NIDDK NIH HHS DK27627NIDDK NIH HHS DK61317NIDDK NIH HHS R01 DK027627NIDDK NIH HHS R01 DK061317NIDDK NIH HHS R37 DK027627
6 · The paper itself

Abstract

The vagus nerve supplies low-threshold chemo- and mechanosensitive afferents to the mucosa of the proximal gastrointestinal (GI) tract. The absence of a full characterization of the morphology and distributions of these projections has hampered comprehensive functional analyses. In the present experiment, dextran (10K) conjugated with tetramethylrhodamine and biotin was injected into the nodose ganglion and used to label the terminal arbors of individual vagal afferents of both rats and mice. Series of serial 100-μm thick sections of the initial segment of the duodenum as well as the pyloric antrum were collected and processed with diaminobenzidine for permanent tracer labeling. Examination of over 400 isolated afferent fibers, more than 200 from each species, indicated that three vagal afferent specializations, each distinct in morphology and in targets, innervate the mucosa of the proximal GI tract. One population of fibers, the villus afferents, supplies plates of varicose endings to the apical tips of intestinal villi, immediately subjacent to the epithelial wall. A second type of afferent, the crypt afferent, forms subepithelial rings of varicose processes encircling the intestinal glands or crypts, immediately below the crypt-villus junction. Statistical assessment of the isolated fibers indicated that the villus arbors and the crypt endings are independent, issued by different vagal afferents. A third vagal afferent specialization, the antral gland afferent, arborizes along the gastric antral glands and forms terminal concentrations immediately below the luminal epithelial wall. The terminal locations, morphological features, and regional distributions of these three specializations provide inferences about the sensitivities of the afferents.

Indexed as

Afferent PathwaysAnimalsChemoreceptor CellsGastrointestinal TractIntestinal MucosaMaleMechanoreceptorsMiceNeurons, AfferentRatsRats, Sprague-DawleyVagus Nerve

Identifiers

PMID21246548
PMCPMC3902787
OpenAlexW1987918067

What OpenQuestion holds

Textmetadata
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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.