Evidence map›Paper›PMID 27456865›Full record

ArticleJournal of anatomy2016

TRPV1 receptor in the human trigeminal ganglion and spinal nucleus: immunohistochemical localization and comparison with the neuropeptides CGRP and SP.

Marina Quartu, Maria Pina Serra, Marianna Boi, Laura Poddighe, Cristina Picci, Roberto Demontis, Marina Del Fiacco

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of anatomy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 3 pooled it
2.6field-weighted citation impact, top 12% 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

29 citing papers in PubMed, 3 syntheses or guidelines pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Lack of association between TRPV1 gene polymorphisms and risk of migraine chronification: a case-control study and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Pooled it
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  6. A Tac1-Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
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  9. Gastric protective effect ofPharmaceutical biology · 2023
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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 1 institution in 1 country.

Marina QuartuDepartment of Biomedical Sciences, Cytomorphology Section, University of Cagliari, Monserrato (CA), Italy.
Maria Pina SerraDepartment of Biomedical Sciences, Cytomorphology Section, University of Cagliari, Monserrato (CA), Italy.
Marianna BoiDepartment of Biomedical Sciences, Cytomorphology Section, University of Cagliari, Monserrato (CA), Italy.
Laura PoddigheDepartment of Biomedical Sciences, Cytomorphology Section, University of Cagliari, Monserrato (CA), Italy.
Cristina PicciDepartment of Biomedical Sciences, Cytomorphology Section, University of Cagliari, Monserrato (CA), Italy.
Roberto DemontisDepartment of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy.
Marina Del FiaccoDepartment of Biomedical Sciences, Cytomorphology Section, University of Cagliari, Monserrato (CA), Italy.ORCID 0000-0003-4104-4328
University of Cagliari · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This work presents new data concerning the immunohistochemical occurrence of the transient receptor potential vanilloid type-1 (TRPV1) receptor in the human trigeminal ganglion (TG) and spinal nucleus of subjects at different ontogenetic stages, from prenatal life to postnatal old age. Comparisons are made with the sensory neuropeptides calcitonin gene-related peptide (CGRP) and substance P (SP). TRPV1-like immunoreactive (LI) material was detected by western blot in homogenates of TG and medulla oblongata of subjects at prenatal and adult stages of life. Immunohistochemistry showed that expression of the TRPV1 receptor is mostly restricted to the small- and medium-sized TG neurons and to the caudal subdivision of the spinal trigeminal nucleus (Sp5C). The extent of the TRPV1-LI TG neuronal subpopulation was greater in subjects at early perinatal age than at late perinatal age and in postnatal life. Centrally, the TRPV1 receptor localized to fibre tracts and punctate elements, which were mainly distributed in the spinal tract, lamina I and inner lamina II of the Sp5C, whereas stained cells were rare. The TRPV1 receptor colocalized partially with CGRP and SP in the TG, and was incompletely codistributed with both neuropeptides in the spinal tract and in the superficial laminae of the Sp5C. Substantial differences were noted with respect to the distribution of the TRPV1-LI structures described in the rat Sp5C and with respect to the temporal expression of the receptor during the development of the rat spinal dorsal horn. The distinctive localization of TRPV1-LI material supports the concept of the involvement of TRPV1 receptor in the functional activity of the protopathic compartment of the human trigeminal sensory system, i.e. the processing and neurotransmission of thermal and pain stimuli.

Indexed as

AdultAged, 80 and overAmino Acid SequenceAnimalsCalcitonin Gene-Related PeptideChildFemaleFetusHumansMaleMiddle AgedNeuropeptidesPregnancyRatsSubstance PTrigeminal GanglionCalcitonin Gene-Related PeptideNeuropeptidesSubstance PTRPV1 protein, humanTRPV Cation Channelscalcitonin gene-related peptidehuman trigeminal systemimmunohistochemistrysubstance Ptransient receptor potential vanilloid type-1 receptorwestern blot

Identifiers

PMID27456865
PMCPMC5108161
OpenAlexW2506454637

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.