Evidence map›Paper›PMID 31383932›Full record

ArticleScientific reports2019

Visualizing the trigeminovagal complex in the human medulla by combining ex-vivo ultra-high resolution structural MRI and polarized light imaging microscopy.

D J H A Henssen, B Derks, M van Doorn, N C Verhoogt, P Staats, K Vissers, A M Van Cappellen van Walsum

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Non-Invasive Vagus Nerve Stimulation in Cluster Headache: A Clinical Practice Guideline.Pain practice : the official journal of World Institute of Pain · 2025
    Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Non-invasive neuromodulation of the cervical vagus nerve in rare primary headaches.Frontiers in pain research (Lausanne, Switzerland) · 2023
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Tympanic Resonance Hypothesis.Frontiers in neurology · 2020
    Article
  17. 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

7 authors at 3 institutions in 2 countries.

D J H A HenssenDepartment of Anatomy, Donders Institute for Brain, Cognition & Behavior, Radboud university medical center, Nijmegen, The Netherlands. dylan.henssen@radboudumc.nl.
B DerksDepartment of Anatomy, Donders Institute for Brain, Cognition & Behavior, Radboud university medical center, Nijmegen, The Netherlands.
M van DoornDepartment of Anatomy, Donders Institute for Brain, Cognition & Behavior, Radboud university medical center, Nijmegen, The Netherlands.
N C VerhoogtDepartment of Anatomy, Donders Institute for Brain, Cognition & Behavior, Radboud university medical center, Nijmegen, The Netherlands.
P StaatsPremier Pain Centers, Shrewsbury, New Jersey, United States of America.
K VissersDepartment of Anesthesiology, Pain and Palliative Medicine, Radboud university medical center, Nijmegen, The Netherlands.
A M Van Cappellen van WalsumDepartment of Anatomy, Donders Institute for Brain, Cognition & Behavior, Radboud university medical center, Nijmegen, The Netherlands.
Radboud University Nijmegen · NLRadboud University Medical Center · NLPain Management Centers Of America · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A trigeminovagal complex, as described in some animals, could help to explain the effect of vagus nerve stimulation as a treatment for headache disorders. However, the existence of a trigeminovagal complex in humans remains unclear. This study, therefore investigated the existence of the trigeminovagal complex in humans. One post-mortem human brainstem was scanned at 11.7T to obtain structural (T1-weighted) and diffusion magnetic resonance images ((d)MR images). Post-processing of dMRI data provided track density imaging (TDI) maps to investigate white matter at a smaller resolution than the imaging resolution. To evaluate the reconstructed tracts, the MR-scanned brainstem and three additional brainstems were sectioned for polarized light imaging (PLI) microscopy. T1-weighted images showed hyperintense vagus medullar striae, coursing towards the dorsomedial aspect of the medulla. dMRI-, TDI- and PLI-images showed these striae to intersect the trigeminal spinal tract (sp5) in the lateral medulla. In addition, PLI images showed that a minority of vagus fibers separated from the vagus trajectory and joined the trigeminal spinal nucleus (Sp5) and the sp5. The course of the vagus tract in the rostral medulla was demonstrated in this study. This study shows that the trigeminal- and vagus systems interconnect anatomically at the level of the rostral medulla where the vagus fibers intersect with the Sp5 and sp5. Physiological and clinical utility of this newly identified interconnection is a topic for further research.

Indexed as

AgedAged, 80 and overBrain StemDiffusion Magnetic Resonance ImagingFemaleHumansMaleMedulla OblongataMicroscopy, PolarizationTrigeminal NerveVagus NerveWhite Matter

Identifiers

PMID31383932
PMCPMC6683146
OpenAlexW2965725369

What OpenQuestion holds

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LicenceCC BY
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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.