Evidence map›Paper›PMID 31849617›Full record

ArticleFrontiers in neural circuits2019

Visualization of Brain Activity in a Neuropathic Pain Model Using Quantitative Activity-Dependent Manganese Magnetic Resonance Imaging.

Chihiro Inami, Hiroki Tanihira, Satomi Kikuta, Osamu Ogasawara, Kazuya Sobue, Kazuhiko Kume, Makoto Osanai, Masahiro Ohsawa

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neural circuits, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Neocortical circuits in pain and pain relief.Nature reviews. Neuroscience · 2021
    Review
  6. Manganese Dynamics in Mouse Brain After Systemic MnClFrontiers in neural circuits · 2021
    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

8 authors at 4 institutions in 1 country.

Chihiro InamiDepartment of Neuropharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
Hiroki TanihiraGraduate School of Medicine, Tohoku University, Sendai, Japan.
Satomi KikutaGraduate School of Medicine, Tohoku University, Sendai, Japan.
Osamu OgasawaraDepartment of Anesthesiology, Graduate School of Medicine, Nagoya City University, Nagoya, Japan.
Kazuya SobueDepartment of Anesthesiology, Graduate School of Medicine, Nagoya City University, Nagoya, Japan.
Kazuhiko KumeDepartment of Neuropharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
Makoto OsanaiGraduate School of Medicine, Tohoku University, Sendai, Japan.
Masahiro OhsawaDepartment of Neuropharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
Nagoya City University · JPKyoto University · JPOsaka University · JPTohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human brain imaging studies have revealed several regions that are activated in patients with chronic pain. In rodent brains, functional changes due to chronic pain have not been fully elucidated, as brain imaging techniques such as functional magnetic resonance imaging and positron emission tomography (PET) require the use of anesthesia to suppress movement. Consequently, conclusions derived from existing imaging studies in rodents may not accurately reflect brain activity under awake conditions. In this study, we used quantitative activation-induced manganese-enhanced magnetic resonance imaging to directly capture the previous brain activity of awake mice. We also observed and quantified the brain activity of the spared nerve injury (SNI) neuropathic pain model during awake conditions. SNI-operated mice exhibited a robust decrease of mechanical nociceptive threshold 14 days after nerve injury. Imaging on SNI-operated mice revealed increased neural activity in the limbic system and secondary somatosensory, sensory-motor, piriform, and insular cortex. We present the first study demonstrating a direct measurement of awake neural activity in a neuropathic pain mouse model.

Indexed as

AnimalsBrainChronic PainDisease Models, AnimalHyperalgesiaMagnetic Resonance ImagingMaleManganeseMiceNeuralgiaManganeseemotionmanganeseMRIneuropathic painsomatosensory abnormality

Identifiers

PMID31849617
PMCPMC6889800
OpenAlexW2990687447

What OpenQuestion holds

Textmetadata
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.