Sensory Neurons and Pain Signals

A special issue of Brain Sciences (ISSN 2076-3425).

Deadline for manuscript submissions: closed (20 September 2020) | Viewed by 1993

Special Issue Editor


E-Mail Website
Guest Editor
Independent scholar
Interests: P2X3; receptors; scaffolds; signalling; plasticity; trigeminal; migraine

Special Issue Information

Dear Colleagues,

It is my pleasure to present the Special Issue entitled “Sensory Neurons and Pain Signals”, in which I am serving as Guest Editor.

Sensory neurons decode peripheral mechanical and chemical stimuli. They are characterised by unique physiological properties and firing patterns that transmit distinct sensory modalities to the central nervous system. Although three main subtypes of sensory neurons can be distinguished according to their different conduction velocities, genetic mapping has identified neurons with distinct gene expression profiles. While specific subsets of neurons are devoted to the transduction of acute painful stimuli, pain chronicization and allodynia cause the recruitment of a larger number of neurons, with rapid plasticity following injury or inflammation. In addition, the persistence of algogenic stimuli is transduced at molecular and genetic levels, resulting in lower threshold for firing and therefore generating the conditions for peripheral and central sensitisation. Due to the intrinsic complexity of chronic pain against individual genetic backgrounds, the pharmacological treatment of pain is very complex and still poorly effective for many patients.

In order to update knowledge on these processes and to highlight new possible drug targets, the Special Issue of Brain Sciences entitled “Sensory Neurons and Pain Signals” will take an in-depth look into many aspects of sensory neuron pathophysiology.

In particular, we will present review articles covering basic aspects of the anatomy and function of sensory neurons, the peculiar effects of neuropeptide signalling, miRNA-dependent plasticity processes, and epigenetic control of pain. In addition, we will focus on gender determinants of pain mechanisms and pharmacological approaches to treat and contain pain.

Dr. Elsa Fabbretti
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Brain Sciences is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • sensitisation
  • allodynia
  • NGF
  • BDNF
  • CGRP
  • TRP
  • ASIC
  • P2X
  • piezo
  • trigeminal ganglia
  • dorsal root ganglia (DRG)

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Other

9 pages, 894 KiB  
Brief Report
An Exploratory Study Testing Autonomic Reactivity to Pain in Women with Sensory Over-Responsiveness
by Tami Bar-Shalita, Nurit Ben-Ziv, Yelena Granovsky and Irit Weissman-Fogel
Brain Sci. 2020, 10(11), 819; https://doi.org/10.3390/brainsci10110819 - 5 Nov 2020
Cited by 7 | Viewed by 1728
Abstract
Background: Difficulty modulating sensory input related to multi-sensory integration dysfunction, specifically the sensory over-responsive (SOR) type, is associated with psychological distress and hyperalgesia in children and adults. Scares reports suggest atypical autonomic nervous system (ANS) reactivity to innocuous sensory stimuli in children with [...] Read more.
Background: Difficulty modulating sensory input related to multi-sensory integration dysfunction, specifically the sensory over-responsive (SOR) type, is associated with psychological distress and hyperalgesia in children and adults. Scares reports suggest atypical autonomic nervous system (ANS) reactivity to innocuous sensory stimuli in children with SOR. Thus, the ANS may contribute to sensory stimuli responses and psychological distress. This exploratory study aimed to characterize the ANS reactivity to single and dual pain stimulation, and in relation to psychological distress in adults with SOR. Methods: Healthy women with SOR (n = 9) vs. without SOR (n = 9) underwent two runs of single pain stimulation and a third run comprised of dual pain stimulation. Pain was self-rated, while heart rate variability was measured and analyzed in the time and frequency domains. In addition, questionnaires assessing anxiety and somatization were utilized. Results: While controls demonstrated a vagal tone withdrawal (root mean square of successive differences in R-R-intervals; (RMSSD)) p = 0.029 from base-line to the third run, this was absent in the SOR group. However, no group differences were found in pain ratings. Furthermore, groups differed in the correlations between R-R mean and the level of both anxiety (p = 0.006) and somatization (p < 0.001); while in the SOR group, higher levels of anxiety and somatization correlated with shorter R-R intervals, the opposite was found in the control group. Conclusions: This is the first study to demonstrate in women with SOR atypical vagal tone reactivity to challenging pain load. Vagal tone reactivity is related to both pain ratings and psychological distress. Full article
(This article belongs to the Special Issue Sensory Neurons and Pain Signals)
Show Figures

Figure 1

Back to TopTop