Evidence map›Paper›PMID 41737301›Full record

ReviewJournal of pain research2026

Pulsed Radiofrequency and Epigenetic Modulation of Pain Pathways: A Systematic Review Based on Preclinical Evidence.

Felice Occhigrossi, Jacopo Mosca, Fabrizio Micheli, Roberto Gazzeri, Christopher L Robinson, Giuliano Lo Bianco

Abstract readReview
In one paragraph

Review in Journal of pain research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Oxycodone combined with pulsed radiofrequency for refractory cancer pain from spinal metastases: a randomized controlled study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Trial
  2. Article
  3. 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

6 authors.

Felice OcchigrossiPain Therapy Unit, San Giovanni-Addolorata Hospital, Rome, Italy.
Jacopo MoscaPain Therapy Unit, Policlinico Umberto I Hospital, Rome, Italy.
Fabrizio MicheliUnit of Interventional and Surgical Pain Management, Guglielmo da Saliceto Hospital, Piacenza, Italy.
Roberto GazzeriPain Therapy Unit, San Giovanni-Addolorata Hospital, Rome, Italy.
Christopher L RobinsonDivision of Pain Medicine, Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.ORCID 0000-0002-6276-9056
Giuliano Lo BiancoAnesthesiology and Pain Department, Foundation G. Giglio Cefalù, Palermo, Italy.ORCID 0000-0003-2705-1548

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Pulsed radiofrequency (PRF) is used for refractory neuropathic pain, yet its mechanisms remain incompletely defined. The dorsal root ganglion (DRG) and peripheral nerves (eg, sciatic nerve) are common targets and key nodes in nociceptive transmission and neuro-immune crosstalk. Compared with implantable electrical neuromodulation (SCS/PNS), PRF provides non-invasive, percutaneous neuromodulation. Epigenetic regulation after PRF is plausible because chronic pain causes transcriptional modifications and electrical neuromodulation may influence chromatin-based gene control. Objective: To summarize preclinical evidence on epigenetic and molecular changes after PRF applied to the DRG or peripheral nerves. Methods: PubMed, Embase, and Scopus were searched (PRISMA-S); synthesis followed SWiM. Studies assessed direct epigenetic modifications and/or gene/protein expression changes after PRF at DRG or peripheral nerve targets. Risk of bias was evaluated using the JBI checklist for animal studies. Results: Seventeen rodent studies were included. One study reported a direct epigenetic modification, showing that PRF reversed complete Freund's adjuvant (CFA)-induced histone H3/H4 hypoacetylation at the Conclusion: Preclinical data support a non-destructive PRF mechanism involving dampening of neuro-immune signaling and restoration of inhibitory tone. Direct epigenetic evidence remains limited (single study) and absent in humans. Priorities include standardized PRF parameter reporting, time-course and multi-omic profiling beyond

Indexed as

dorsal root ganglionepigeneticsGDNFhistone acetylationKCC2MAPKmicroglianeuropathic painpulsed radiofrequencyTRPV1

Identifiers

PMID41737301
PMCPMC12927815

What OpenQuestion holds

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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.