Pulsed Electromagnetic Field therapy, or PEMF, is a non-thermal electromagnetic stimulation technology that has already been widely used in several medical fields. One well-known example is Transcranial Magnetic Stimulation, or TMS, which is used clinically for neurological and psychiatric conditions such as depression, Parkinson’s disease, and OCD. In musculoskeletal medicine, PEMF has also been studied for pain control, bone healing, ligament repair, and wound healing, demonstrating its ability to modulate biological activity at the cellular level. The fundamental mechanism of PEMF involves the induction of a small electric field across the cell membrane. This can slightly change the membrane potential and activate voltage-gated calcium channels, allowing controlled calcium signaling inside the cell. In addition, mechanosensitive pathways such as Piezo1-mediated mechanotransduction may also be involved. These calcium-dependent signals can activate regenerative pathways associated with fibroblast proliferation, collagen synthesis, immunomodulation, and angiogenesis. To explore the potential application of PEMF in skin regeneration, an animal study using a photoaged rat model was conducted. In this experiment, Sprague-Dawley rats were exposed to repeated UV irradiation for approximately 30 days to induce skin photoaging. After establishing the model, PEMF stimulation with the CoreSculpt-F system was applied under specific conditions. Histological analysis using Masson’s trichrome staining demonstrated a significant increase in dermal collagen fiber density compared with the UV-aged control group. Expression of collagen type I and type III also increased. In addition, the stem cell marker CD166 was elevated, suggesting activation of dermal regenerative cells. Electron microscopy further revealed structural changes in the zygomatic ligament region, including increased collagen fiber bundle diameter and improved alignment, indicating connective tissue remodeling. At the cellular level, fibroblast proliferation increased, Piezo1 expression was upregulated, and macrophages showed a shift from the pro-inflammatory M1 phenotype toward the regenerative M2 phenotype. Overall, these findings suggest that PEMF can stimulate mechanotransduction-related calcium signaling and cellular regeneration pathways, enhancing collagen remodeling and connective tissue organization without causing thermal tissue damage. This indicates that PEMF may serve as a promising non-invasive technology for dermal regeneration, skin rejuvenation, and soft tissue remodeling.
This session is not recorded and is not a part of the Annual Conference Recordings Package.
