Evidence map›Paper›PMID 28225716›Full record

ArticlePain2017

Divergent functions of the left and right central amygdala in visceral nociception.

Katelyn E Sadler, Neal A McQuaid, Abigail C Cox, Marissa N Behun, Allison M Trouten, Benedict J Kolber

Open access · greenAbstract read
In one paragraph

Article in Pain, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
9.4field-weighted citation impact, top 2% 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

52 citing papers in PubMed, 91 citations in OpenAlex.

  1. Article
  2. Central amygdalar PKCδ neurons mediate fentanyl withdrawal.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
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  7. From bladder to brain: How you know when it's time to go.Current opinion in neurobiology · 2025
    Review
  8. Article
  9. Article
  10. A new vision of the role of the cerebellum in pain processing.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  11. Sex Differences in Central Amygdala Glutamate Responses to Calcitonin Gene-Related Peptide.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

6 authors at 1 institution in 1 country.

Katelyn E SadlerDepartment of Biological Sciences and Chronic Pain Research Consortium, Duquesne University, Pittsburgh, PA, USA.
Neal A McQuaid
Abigail C Cox
Marissa N Behun
Allison M Trouten
Benedict J Kolber
Duquesne University · US

Funding

Cyanobacterial Natural Products to Treat Comorbid Pain and DepressionR15AT008060 · NCCIH · DUQUESNE UNIVERSITY · PI KOLBER, BENEDICT J, TIDGEWELL, KEVIN JOSEPH · 2014 to 2019
$905k
Effects of Central Amygdala Lateralization on Descending Control of Bladder PainF31DK104538 · NIDDK · DUQUESNE UNIVERSITY · PI SADLER, KATELYN · 2014 to 2016
$97k
NCCIH NIH HHS R15 AT008060NIDDK NIH HHS F31 DK104538
6 · The paper itself

Abstract

The left and right central amygdalae (CeA) are limbic regions involved in somatic and visceral pain processing. These 2 nuclei are asymmetrically involved in somatic pain modulation; pain-like responses on both sides of the body are preferentially driven by the right CeA, and in a reciprocal fashion, nociceptive somatic stimuli on both sides of the body predominantly alter molecular and physiological activities in the right CeA. Unknown, however, is whether this lateralization also exists in visceral pain processing and furthermore what function the left CeA has in modulating nociceptive information. Using urinary bladder distension (UBD) and excitatory optogenetics, a pronociceptive function of the right CeA was demonstrated in mice. Channelrhodopsin-2-mediated activation of the right CeA increased visceromotor responses (VMRs), while activation of the left CeA had no effect. Similarly, UBD-evoked VMRs increased after unilateral infusion of pituitary adenylate cyclase-activating polypeptide in the right CeA. To determine intrinsic left CeA involvement in bladder pain modulation, this region was optogenetically silenced during noxious UBD. Halorhodopsin (NpHR)-mediated inhibition of the left CeA increased VMRs, suggesting an ongoing antinociceptive function for this region. Finally, divergent left and right CeA functions were evaluated during abdominal mechanosensory testing. In naive animals, channelrhodopsin-2-mediated activation of the right CeA induced mechanical allodynia, and after cyclophosphamide-induced bladder sensitization, activation of the left CeA reversed referred bladder pain-like behaviors. Overall, these data provide evidence for functional brain lateralization in the absence of peripheral anatomical asymmetries.

Indexed as

AnimalsCentral Amygdaloid NucleusChannelrhodopsinsCyclophosphamideDose-Response Relationship, DrugElectromyographyFemaleFunctional LateralityHyperalgesiaImmunosuppressive AgentsMiceMice, Inbred C57BLMice, TransgenicNestinOptogeneticsPhosphopyruvate HydrataseChannelrhodopsinsCyclophosphamideImmunosuppressive AgentsNestinPhosphopyruvate HydratasePituitary Adenylate Cyclase-Activating PolypeptideProto-Oncogene Proteins c-fos

Identifiers

PMID28225716
PMCPMC5655992
OpenAlexW2569704946

What OpenQuestion holds

Textmetadata
LicenceTDM
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.