Pulsed Electromagnetic Fields in Chronic Pain Management: a KDM6B-Mediated Modulation Mechanism Hypothesis

Background: Chronic pain affects millions of patients globally and remains therapeutically chal-lenging. While conventional pharmacological approaches have limitations and side effects, pulsed electromagnetic field (PEMF) therapy represents a non-invasive biophysical approach. However, the biological mechanisms underlying PEMF efficacy remain poorly understood. Objective: This study starting from a multi-center post-market surveillance (PMS) data of 81 patients treated with Synth&eacuteXer (a CE-marked Class IIa PEMF device) proposes a mechanistic framework that links ob- served clinical effects to epigenetic modulation via the histone demethylase KDM6B. Materials and Methods: Patients with inflammatory and degenerative disorders causing chronic pain were treated with Synth&eacuteXer across four Italian rehabilitation centers. Pain was assessed using the Numerical Pain Rating Scale (NPRS) before and after treatment. Statistical analysis included descriptive statistics, ANOVA, correlations, and Cohen d effect size. Proposed mechanisms were based on and extrapolated from molecular and biochemical studies demonstrating KDM6B-dependent epigenetic changes in response to specific PEMF sequences. Results: Mean NPRS score decreased significantly from 8.07 {+/-} 1.65 (PRE) to 1.79 {+/-} 1.67 (POST), representing a 6.28-point reduction (p < 0.001; Cohen d = 3.1). Ninety-eight percent of patients showed pain reduction [&ge;] 2 points. No adverse effects were reported. Subset analysis revealed consistent responses across inflammatory (n=19) and degenerative (n=62) pathologies. Discussion: While the observational nature of these data precludes definitive causal attribution, the magnitude of clinical response combined with emerging evidence of KDM6B-mediated epigenetic remodeling suggests a plausible biological basis for PEMF efficacy. Specifically, sequence-depend- ent electromagnetic stimulation may promote the production of and release of anti-inflammatory cytokines and pain resolution through histone demethylation and chromatin remodeling ultimately acting on the expression modulation of such regulatory cytokines. Conclusions: These post-market surveillance data provide clinical evidence of PEMF effects in chronic pain management. The proposed epigenetic mechanism, while requiring further experimental validation and mechanistic confirmation, offers a science-based framework for understanding PEMF biological action and guiding future investigations.