Evidence map›Paper›PMID 32309197›Full record

ArticleAnesthesiology and pain medicine2020

Effects of Pulsed Radiofrequency on a Standard Model of Muscle Injury in Rats.

Luis Josino Brasil, Norma Marroni, Elizângela Schemitt, Josieli Colares

Open access · diamondAbstract read
In one paragraph

Article in Anesthesiology and pain medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
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

4 authors at 4 institutions in 1 country.

Luis Josino BrasilDepartment of Anesthesiology and Pain Management, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil.
Norma MarroniUniversidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.
Elizângela SchemittLaboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.
Josieli ColaresLaboratory of Experimental Hepatology and Gastroenterology, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.
Hospital de Clínicas de Porto Alegre · BRUniversidade Federal de Ciências da Saúde de Porto Alegre · BRUniversidade Federal do Rio Grande do Sul · BRUniversidade Luterana do Brasil · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPulsed radiofrequency (PRF) affects animal and plant tissues; however, the mechanism has not been defined. We hypothesized that the magnetic field produced by PRF exerts its effects by the magnetic sensitivity of transitions between spin states -a spin-correlated radical-pair mechanism (SCRPM)- which, in turn, affects the rates of chemical reactions with participation of paramagnetic species.

objectivesThis study aimed to evaluate the effects of PRF on redox equilibrium and inflammatory status in a standard model of muscle injury in rats.

methodsTwenty-four animals were subjected to a single impact trauma to the left quadriceps and the groups exposed and not exposed to PRF were compared. On day 7 of the experiment, the animals were killed and the quadriceps muscles were removed for analysis.

resultsThere was a significant increase in the concentration of thiobarbituric acid reactive substances (TBARS) in the muscle of animals from the trauma group (+233%), and this increase was eliminated by PRF administration. Superoxide dismutase (SOD) activity was increased (+411%) by trauma, resulting in significantly higher consumption of catalase (-72%), while PRF administration brought both of these markers back to levels close to those of the control group. Trauma induced considerable production of interleukins TNF-α, IL-1β, and IL-6 (+215%, +262%, and +326% vs. controls, respectively) and these effects were also significantly reduced by PRF administration.

conclusionsIn total, PRF inhibits oxidative stress and restores antioxidant enzymes to control levels and may block production of inflammatory markers in muscles of animals subjected to trauma. By modulating redox equilibrium, PRF treatment might block production of noxious mediators involved in development of trauma-induced injury.

Indexed as

AnimalElectromagnetic FieldsInflammationModelsMuscleOxidative StressPulsed Radiofrequency TreatmentStriated

Identifiers

PMID32309197
PMCPMC7144246
OpenAlexW3005271670

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.