Evidence map›Paper›PMID 34113253›Full record

ArticleFrontiers in pharmacology2021

Optogenetic Manipulations of Amygdala Neurons Modulate Spinal Nociceptive Processing and Behavior Under Normal Conditions and in an Arthritis Pain Model.

Mariacristina Mazzitelli, Kendall Marshall, Andrew Pham, Guangchen Ji, Volker Neugebauer

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.8field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 34 citations in OpenAlex.

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  3. 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
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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

5 authors at 3 institutions in 1 country.

Mariacristina MazzitelliDepartment of Pharmacology and Neuroscience, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.
Kendall MarshallDepartment of Pharmacology and Neuroscience, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.
Andrew PhamDepartment of Pharmacology and Neuroscience, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.
Guangchen JiDepartment of Pharmacology and Neuroscience, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.
Volker NeugebauerDepartment of Pharmacology and Neuroscience, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, United States.
Texas Tech University · USTexas Tech University Health Sciences Center · USInstitute on Aging · US

Funding

PAIN, NOCICEPTION, AND THE AMYGDALAR01NS038261 · NINDS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI Volker Neugebauer, Igor Ponomarev · 1999 to 2026
$8.7M
Trans-synaptic signaling complex in amygdala pain mechanismsR01NS118731 · NINDS · TEXAS A&M UNIVERSITY HEALTH SCIENCE CTR · PI DRAVID, SHASHANK MANOHAR, NEUGEBAUER, VOLKER · 2020 to 2024
$2.7M
NINDS NIH HHS R01 NS038261NINDS NIH HHS R01 NS118731
6 · The paper itself

Abstract

The amygdala is an important neural substrate for the emotional-affective dimension of pain and modulation of pain. The central nucleus (CeA) serves major amygdala output functions and receives nociceptive and affected-related information from the spino-parabrachial and lateral-basolateral amygdala (LA-BLA) networks. The CeA is a major site of extra-hypothalamic expression of corticotropin releasing factor (CRF, also known as corticotropin releasing hormone, CRH), and amygdala CRF neurons form widespread projections to target regions involved in behavioral and descending pain modulation. Here we explored the effects of modulating amygdala neurons on nociceptive processing in the spinal cord and on pain-like behaviors, using optogenetic activation or silencing of BLA to CeA projections and CeA-CRF neurons under normal conditions and in an acute pain model. Extracellular single unit recordings were made from spinal dorsal horn wide dynamic range (WDR) neurons, which respond more strongly to noxious than innocuous mechanical stimuli, in normal and arthritic adult rats (5-6 h postinduction of a kaolin/carrageenan-monoarthritis in the left knee). For optogenetic activation or silencing of CRF neurons, a Cre-inducible viral vector (DIO-AAV) encoding channelrhodopsin 2 (ChR2) or enhanced Natronomonas pharaonis halorhodopsin (eNpHR

Indexed as

amygdalacorticotropin releasing factorcorticotropin releasing hormoneelectrophysiologyoptogeneticspain modulationspinal dorsal horn

Identifiers

PMID34113253
PMCPMC8185300
OpenAlexW3164638858

What OpenQuestion holds

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LicenceCC BY
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.