Pulsed Electromagnetic Fields Research Articles

Pulsed Electromagnetic Field Enhances Caffeic Acid Phenethyl Ester-induced Death of MCF-7 Breast Cancer Cells.

Caffeic acid phenethyl ester (CAPE) exerts anticancer effects against several cancer types, including breast cancer. Pulsed electromagnetic field (PEMF) improves the efficiency of some chemotherapeutic drugs. In this study, we examined the effects of PEMF stimulation on the anticancer activity of CAPE in MCF-7 breast cancer cells and the underlying signal transduction pathways. MCF-7 cells were seeded and incubated for 24 h. Each of the drugs (5-fluorouracil, paclitaxel, gefitinib, or CAPE) was added to the cells on day 0. Then, cells were immediately stimulated with a 60-min PEMF session thrice a day (with 4-h interval between sessions) for 1-3 days. Cell death and viability were assessed by flow cytometry and trypan blue dye exclusion assay. Molecular mechanisms involved in cell death were confirmed by western blot assay. Compared with treatment with CAPE alone, co-treatment with CAPE and PEMF more strongly reduced the viability of MCF-7 cells, further increased the percentage of the sub-G1 population, poly (ADP-ribose) polymerase (PARP) cleavage, activation of apoptotic caspases, up-regulation of pro-apoptotic proteins, such as Fas cell surface death receptor (FAS) and BCL2 associated X, apoptosis regulator (BAX), and reduced the expression of anti-apoptotic proteins, such as BCL-2 apoptosis regulator (BCL-2), MCL-1 apoptosis regulator, BCL-2 family member (MCL-1), and survivin. PEMF stimulation also increased CAPE-induced phosphorylation of p53, and inhibition of p53 partially restored the PEMF-reduced viability of CAPE-treated MCF-7 cells. PEMF stimulation enhanced CAPE-induced cell death by activating p53, which regulates the expression of apoptosis-related molecules, subsequently activating the caspase-dependent apoptotic pathway in MCF-7 cells, suggesting that PEMF can be utilized as an adjuvant to enhance the effect of CAPE on breast cancer cells.

The potential of pulsed electromagnetic field-generated shock waves for reducing microbial load and improving homogenization in raw milk

Milk is a highly nutritious food essential for human consumption. However, traditional thermal processing methods can reduce its nutritional value and cause unwanted changes. The use of shock waves produced by pulsed electromagnetic fields (PEMFs) has been explored as a means to reduce pathogenic microorganisms. The effect of shock wave treatment on microbial load and particle distribution in packaged fresh cow's milk was investigated. Additionally, the impact of shock wave treatment on Salmonella enterica counts in a bacterial suspension of phosphate-buffered saline (PBS) was evaluated, as this bacterium is a significant milkborne pathogen. Treatment with 1000 impulses from an electromagnetic shock wave generator resulted in a 0.7-log reduction in the total bacterial count of milk. In a separate experiment, a 300-impulse shock wave treatment applied to a Salmonella enterica suspension achieved a 3-log reduction in bacterial counts. Furthermore, shock wave treatment resulted in a decrease in milk particle size compared to untreated milk. Notably, the volume of milk used in this study aligns with commercially available packaged products, enhancing the experiment's industrial relevance. The use of PEMF to generate shock waves could provide a novel approach for future studies focused on reducing the microbial load of milk and improving its homogenization.

Pulsed electromagnetic fields used in regenerative medicine: An in vitro study of the skin wound healing proliferative phase.

Numerous studies have demonstrated the efficacy of extremely low frequency-pulsed electromagnetic fields (ELF-PEMF) in accelerating the wound healing process in vitro and in vivo. Our study focuses specifically on ELF-PEMF applied with the Magnomega® device and aims to assess their effect during the main stages of the proliferative phase of dermal wound closure, in vitro. Thus, after the characterization of the EMFs delivered by the Magnomega® unit, primary culture of human dermal fibroblasts (HDFs) were exposed, or not for the control culture, to 10-12and 100 Hz ELF-PEMF. These parameters are used in clinical practice by physiotherapists in order to enhance healing of dermal lesions in patients. HDFs proliferation was first assessed and revealed an increase in the expression of one of the two genetic markers of cell proliferation tested (PCNA and MKI67), after initial exposure of the cells to 10-12 Hz PEMF. Next, migration of HDFs was investigated by performing scratch assays on HDF layers. The observed wound closure kinetics corroborate the early organization of actin stress fibers that was revealed in the cytoplasm of HDFs exposed to 100 Hz ELF-PEMF. Also, maturation of HDFs into myofibroblasts was significantly increased in cells exposed to 10-12or to 100 Hz PEMF. The present study is the first to demonstrate, in vitro, an early stimulation of HDFs, after their exposure to ELF-PEMF delivered by the Magnomega® device, which could contribute to an acceleration of the wound healing process.

Experimental study for in vitro prostate cancer treatment with microwave ablation and pulsed electromagnetic field

ABSTRACT This paper presents the findings of a comprehensive study exploring the synergistic effects arising from the combination of microwave ablation and pulsed electromagnetic field (PEMF) therapy on prostate cancer cells. The research encompassed five distinct experimental groups, with continuous electric field measurements conducted during the entire treatment process. Group 1 and Group 2, subjected to microwave power below 350 W, exhibited specific electric field values of 72,800 V/m and 56,600 V/m, respectively. In contrast, Group 3 and Group 4, exposed to 80 W microwave power, displayed electric field levels of approximately 1450 V/m, while remaining free from any observable electrical discharges. The migratory and invasive capacities of PC3 cells were assessed through a scratch test in all groups. Notably, cells in Group 3 and Group 4, subjected to the combined treatment of microwave ablation and PEMF, demonstrated significantly accelerated migration in comparison to those in Groups 1 and 2. Additionally, Group 5 cells, receiving PEMF treatment in isolation, exhibited decreased migratory ability. These results strongly suggest that the combined approach of microwave ablation and PEMF holds promise as a potential therapeutic intervention for prostate cancer, as it effectively reduced cell viability, induced apoptosis, and impeded migration ability in PC3 cells. Moreover, the isolated use of PEMF demonstrated potential in limiting migratory capacity, which could hold critical implications in the fight against cancer metastasis.

Efficiency of pulsed electromagnetic field and neuromuscular electrical stimulation on painful shoulder following stroke

Efficiency of pulsed electromagnetic field and neuromuscular electrical stimulation on painful shoulder following stroke

Pulsed electromagnetic fields (PEMF) as a valid tool in orthognathic surgery to reduce post-operative pain and swelling: a prospective study.

PEMF (pulsed electromagnetic fields) founds application in several medical fields to accelerate bone wounds healing and to reduce inflammation. The aim of our study was to evaluate the effectiveness of PEMF in reducing postoperative swelling and pain in patients undergoing orthognathic surgery. A prospective observational monocentric study was conducted on a sample of 30 patients undergone to orthognathic surgery in Maxillofacial Surgery Unit of University of Naples Federico II. The patients who followed these inclusion criteria were enrolled in the study: age ≥ 18 years, Class III malocclusion, Surgical procedure of Le Fort I osteotomy + Bilateral Sagittal Split Osteotomy (BSSO), Written informed consent. Patients were divided into two groups: Group SD) postoperative standard treatment with medical therapy and cryotherapy, Group SD + PEMF) postoperative standard therapy + PEMF. Each patient underwent a 3D facial scan, at one (1d) and four (4d) days after surgery to compare the swelling reduction. The pain score was assessed through VAS score and analgesics administration amount. In SD + PEMF group, the facial volume reduction between 1d and 4d scan was on average 56.2ml (6.23%), while in SD group, it was 23.6ml (2.63%). The difference between the two groups was 3.6% (p = 0.0168). VAS pain values were significantly higher in SD group compared to SD + PEMF group in the second day after surgery (P = 0.021) and in the total 4 days (P = 0.008). Our data suggest that PEMF is valid tool to promote faster postoperative swelling and pain reduction in patients undergoing orthognathic surgery.

Improvement of the device’s design for increasing the efficiency of geophysical research using the Earth’s natural pulsed electromagnetic field method

Long-term field studies have shown the high efficiency of the geophysical method of the earth’s natural pulsed electromagnetic field (NPEMFE). It is a modern and experimentally substantiated tool for studying geodynamic processes in the geological environment. Disadvantages of the known device are the low efficiency of recording the intensity level of the NPEMFE, low productivity and high costs of manual labor when performing complex registration. The application of the proposed improvements will make it possible to increase the efficiency of registration of the intensity level of the NPEMFE with an increase in productivity and a decrease in costs and the level of manual labor. The technical result is achieved due to the mobility of the structure and the provision of the possibility of simultaneous registration of the intensity level of the NPEMFE both in the frequency band and in its spatial position.

Adjunctive Use of Bone Growth Stimulation Increases Cervical Spine Fusion Rates in Patients at Risk for Pseudarthrosis.

A prospective multicenter clinical trial (NCT03177473) was conducted with a retrospective cohort used as a control arm. The purpose of this study was to evaluate cervical spine fusion rates in subjects with risk factors for pseudarthrosis who received pulsed electromagnetic field (PEMF) treatment. Certain risk factors predispose patients to pseudarthrosis, which is associated with prolonged pain, reduced function, and decreased quality of life. Subjects in the PEMF group were treated with PEMF for 6 months postoperatively. The primary outcome measure was fusion status at the 12-month follow-up period. Fusion status was determined using anterior/posterior, lateral, and flexion/extension radiographs and computed tomography (without contrast). A total of 213 patients were evaluated (PEMF, n=160; Control, n=53). At baseline, the PEMF group had a higher percentage of subjects who used nicotine ( P =0.01), had osteoporosis ( P <0.05), multi-level disease ( P <0.0001), and were >65 years of age ( P =0.01). The PEMF group showed over two-fold higher percentage of subjects that had ≥3 risk factors (n=92/160, 57.5%) compared with the control group (n=14/53, 26.4%). At the 12-month follow-up, the PEMF group demonstrated significantly higher fusion rates compared with the control (90.0% vs. 60.4%, P <0.05). A statistically significant improvement in fusion rate was observed in PEMF subjects with multi-level surgery ( P <0.0001) and high BMI (>30kg/m 2 ; P =0.0021) when compared with the control group. No significant safety concerns were observed. Adjunctive use of PEMF stimulation provides significant improvements in cervical spine fusion rates in subjects having risk factors for pseudarthrosis. When compared with control subjects that did not use PEMF stimulation, treated subjects showed improved fusion outcomes despite being older, having more risk factors for pseudarthrosis, and undergoing more complex surgeries.

Pulsed Radiofrequency Electromagnetic Fields as Modulators of Inflammation and Wound Healing in Primary Dermal Fibroblasts of Ulcers.

Venous leg ulcers are one of the most common nonhealing conditions and represent an important clinical problem. The application of pulsed radiofrequency electromagnetic fields (PRF-EMFs), already applied for pain, inflammation, and new tissue formation, can represent a promising approach for venous leg ulcer amelioration. This study aims to evaluate the effect of PRF-EMF exposure on the inflammatory, antioxidant, cell proliferation, and wound healing characteristics of human primary dermal fibroblasts collected from venous leg ulcer patients. The cells' proliferative and migratory abilities were evaluated by means of a BrdU assay and scratch assay, respectively. The inflammatory response was investigated through TNFα, TGFβ, COX2, IL6, and IL1β gene expression analysis and PGE2 and IL1β production, while the antioxidant activity was tested by measuring GSH, GSSG, tGSH, and GR levels. This study emphasizes the ability of PRF-EMFs to modulate the TGFβ, COX2, IL6, IL1β, and TNFα gene expression in exposed ulcers. Moreover, it confirms the improvement of the proliferative index and wound healing ability presented by PRF-EMFs. In conclusion, exposure to PRF-EMFs can represent a strategy to help tissue repair, regulating mediators involved in the wound healing process.

1085 Adjunctive Use of Bone Growth Stimulation in Cervical Spine Fusion in Patients at Risk for Nonunion

INTRODUCTION: Prior failed fusion, multi-level disease, diabetes, nicotine usage, and osteoporosis are factors associated with nonunion, leading to prolonged pain, reduced function, and overall decreased quality of life. Previous studies have shown that pulsed electromagnetic field (PEMF) stimulation can improve fusion rates, particularly in subjects at risk for nonunion. METHODS: Data from a multi-center prospective study of subjects that underwent cervical spine fusion and were treated with PEMF was compared to a “matched” retrospective cohort that had fusion but were not treated with PEMF. The prospective cohort was enrolled based on having 1 or more of the following risk factors for nonunion: prior failed cervical spine fusion, multilevel fusion, diabetes, osteoporosis, or nicotine use. Fusion was assessed at 12 months postop using x-rays and/or CT. A cohort of cervical spine fusion patients that were prescribed PEMF, but did not receive PEMF treatment (e.g., insurance denial) were compared to PEMF treated subjects. RESULTS: At baseline, subjects in the PEMF treated group had a significantly higher average number of risk factors for nonunion (1.8 for treated group vs. 1.1 for control, p &lt; 0.001), and significantly higher average number of surgical levels (2.8 for treated group vs. 2.0 for control, p &lt; 0.005). At 12 months post-op, subjects in the PEMF group (n = 161) had a 90.1% fusion rate, compared to a 65.4% for the control group (n = 26) (p &lt; 0.001). CONCLUSIONS: PEMF stimulation provides significant improvements in cervical spine fusion rates in subjects having risk factors for nonunion. Compared to control subjects, PEMF treated subjects had improved fusion outcomes despite being older, having more risk factors for pseudarthrosis, and undergoing more complex surgeries.

Effect of hydroxyapatite and pulsed electromagnetic field on osteogenic differentiation of human stem cells seeded onto 3D‐printed polycaprolactone scaffolds for future bone graft transplantation

AbstractBone graft transplantation is a risky procedure mainly due to postoperative complications. Tissue engineering is an alternative to regenerating bone tissue by seeding mesenchymal stem cells into 3D scaffolds by osteoinductive signaling. Poly(ε‐caprolactone) (PCL) is one of the most used biopolymers for fabricating scaffolds for bone tissue engineering. PCL is enriched with hydroxyapatite (HA) to promote the production of the bone‐mineralized matrix. Moreover, the application of pulsed electromagnetic fields (PEMFs) on scaffolds loaded with HA can significantly benefit collagen and HA networks favoring the interaction between organic and mineral phases of bones. In this context, we investigated, for the first time, the effect exerted by a PEMF exposure on the osteogenic differentiation of human adipose stem cells (hASCs) seeded onto 3D printed PCL‐HA scaffolds and cultured in growth and osteogenic medium (OM). After 21 days of culture, the results showed excellent colonization of scaffolds and the deposition of extracellular matrix (ECM) secreted by hASCs. Immunofluorescence staining confirmed the deposition of collagen type I and osteopontin both on scaffolds. Gene expression analysis indicated that both HA crystal and PEMF treatment were able to trigger osteogenic differentiation, as documented by the increase of osteogenic markers. These results suggest that HA, osteogenic factors, and PEMFs converge on the same signaling pathways as there are no additive effects and no change in protein synthesis between scaffolds with HA or treated with PEMFs for cells cultured in OM. The proposed study lays the foundations for exploring new approaches in bone graft transplantation.

173 Electrical Stimulation Used as an Adjunct to Cervical Spine Fusion in Patients at Risk for Pseudarthrosis

INTRODUCTION: Prior studies show that pulsed electromagnetic field (PEMF) stimulation promotes bone healing and can be a valuable tool to help overcome biological deficiencies in patients at risk. The current study further evaluates the adjunct effect of PEMF in subjects undergoing cervical spinal surgery presenting with risk factors for pseudarthrosis. METHODS: A prospective multicenter clinical trial (NCT 03177473) was conducted at eleven clinical sites. Subjects undergoing cervical spinal fusion surgery with one or more risk factors for pseudarthrosis were identified for enrollment. Risk factors for pseudarthrosis included multilevel fusion, prior failed cervical spine fusion, diabetes, osteoporosis, or smoking. Subjects undergoing cervical spinal fusion were required to wear the PEMF device for 4 hours/day for 6 months post-op. Fusion status was determined at the 12-month visit using anterior/posterior, lateral, and flexion/extension radiographs and computed tomography (without contrast). NDI, EQ-5D, SF-36, and VAS for neck and arm pain were collected as secondary outcome measures. RESULTS: Out of 160 subjects, 144 (90.0%) were graded as fused (all levels) at the 12-month visit. Fusion success was 91.7% (n = 55/60), 89.0% (n = 89/100), and 90.9% (n = 20/22) for subjects with 1, 2+, or 3+ risk factors, respectively. Significant improvements in NDI, SF-36, EQ-5D, VAS-arm and VAS-neck were observed compared to baseline (p &lt; 0.001). A device compliance rate of 85.0% was observed at 3-months and 78.3% at 6-months in subjects who had successful cervical fusion. CONCLUSIONS: The PEMF bone growth stimulator device is a valuable tool to aid in fusion healing, especially in challenging populations. Subjects in this study experienced favorable fusion rates of 90% and significant improvement in patient reported outcomes despite having elevated comorbidity and/or complex surgeries.

Lipid profile of blood serum of chickens under conditions of long-term exposure to extremely low frequency variable pulsed electromagnetic field

It has been proven that electromagnetic fields (EMF) of various intensities have various effects on living organisms – from a therapeutic effect to the appearance of various functional disorders. The purpose of this study was to investigate the pattern of long-term continuous exposure of poultry with extremely low frequency variable pulsed electromagnetic field (ELF-PEMF) of weak intensity on indicators of lipid metabolism in chickens. 150–day-old Tetra X breed chickens were irradiated with ELF-PEMF at a frequency of 8 Hz for about 30 minutes for 174 days. The irradiation regime of experimental groups 1 and 2 was continuous, and in groups 3 and 4 it was alternated with weekly breaks. In 1 experimental group, poultry was fed according to the basic diet with a protein content increased by 10–15 %, and in 2 – with a protein content reduced by 10–15 %. In the control group of non-irradiated poultry, the protein content in the diet corresponded to generally accepted norms. The results of the experiment proved that the irradiation regimes of ELF-PEMF selected by us have an effect on lipid metabolism in the body of Tetra X breed chickens. On the 112th day of the experiment, regardless of the used regimes of irradiation of chickens with ELF-PEMF and the protein level in the diet, in the blood serum of the experimental groups, compared to the control, an increase in the level of free triacylglycerols by 1.56–2.76 times was found; cholesterol level – by 1.04–1.39 times; of high-density lipoproteins (HDL) – by 1.24–1.84 times and the reduction of atherogenic index – by 1.41–1.73 times, which is predicted to have a positive effect on their health and productive qualities. Meanwhile, during longer exposure of chickens to ELF-PEMF, the level of triacylglycerols in the blood serum of experimental groups of chickens did not differ significantly from the indicators of non-irradiated poultry (control group). In general, by selecting different modes of irradiation with ELF-PEMF with different supply of protein in the rations, it is possible to influence the indicators of lipid metabolism of Tetra X breed chickens.

Current Evidence Using Pulsed Electromagnetic Fields in Osteoarthritis: A Systematic Review.

(1) Background: Osteoarthritis (OA) significantly impacts patients' quality of life and negatively affects public healthcare costs. The aim of this systematic review is to identify the effectiveness of pulsed electromagnetic fields (PEMFs) in OA treatment across different anatomical districts, determining pain reduction and overall improvement in the patient's quality of life. (2) Methods: In this systematic review following PRISMA guidelines, PubMed and Google Scholar were searched for randomized controlled trials involving patients with osteoarthritis undergoing PEMF therapy. Seventeen studies (1197 patients) were included. (3) Results: PEMF therapy demonstrated positive outcomes across various anatomical districts, primarily in knee osteoarthritis. Pain reduction, assessed through VAS and WOMAC scores, showed significant improvement (60% decrease in VAS, 42% improvement in WOMAC). The treatment duration varied (15 to 90 days), with diverse PEMF devices used. Secondary outcomes included improvements in quality of life, reduced medication usage, and enhanced physical function. (4) Conclusions: Diverse PEMF applications revealed promising results, emphasizing pain reduction and improvement in the quality of life of patients. The variability in the treatment duration and device types calls for further investigation. This review informs future research directions and potential advancements in optimizing PEMF therapies for diverse osteoarthritic manifestations.

Investigation of the effectiveness of intermittent electromagnetic field stimulation for early internal cartilaginous ossification in prechondrocytic ATDC5 cells.

Pulsed electromagnetic field (PEMF) stimulation has been widely applied clinically to promote bone healing; however, its detailed mechanism of action, particularly in endochondral ossification, remains elusive, and long-term stimulation is required for its satisfactory effect. The aim of this study was to investigate the involvement of the mammalian target of rapamycin (mTOR) pathway in chondrocyte differentiation and proliferation using a mouse prechondroblast cell line (ATDC5), and establish an efficient PEMF stimulation strategy for endochondral ossification. The changes in cell differentiation (gene expression levels of aggrecan, type II collagen, and type X collagen) and proliferation (cellular uptake of bromodeoxyuridine [BrdU]) in ATDC5 cells in the presence or absence of rapamycin, an mTOR inhibitor, was measured. The effects of continuous and intermittent PEMF stimulation on changes in cell differentiation and proliferation were compared. Rapamycin significantly suppressed the induction of cell differentiation markers and the cell proliferation activity. Furthermore, only intermittent PEMF stimulation continuously activated the mTOR pathway in ATDC5 cells, significantly promoting cell proliferation. These results demonstrate the involvement of the mTOR pathway in chondrocyte differentiation and proliferation and suggest that intermittent PEMF stimulation could be effective as a stimulus for endochondral ossification during fracture healing process, thereby reducing stimulationtime.

Pulsed shortwave electromagnetic field therapy increases quality of life in canines with symptoms of osteoarthritics.

Joint stiffness, lameness and reduced activity levels are common inflammatory responses observed in canines and have significant impact on quality of life (QOL). The symptoms are often ascribed to osteoarthritis (OA), for which the standard treatment is systemic anti-inflammatories, but pharmacologic intervention can have significant short-term and long-term side effects. Test the efficacy of a Food and Drug Administration (FDA)-cleared pulsed shortwave therapy (PSWT) device as a means to modulate vagus nerve activity and initiate a systemic anti-inflammatory response to determine its ability to improve functionality and the QOL of canines with inflammatory symptoms commonly associated with OA. A randomized, double-blinded, placebo-controlled 14-day study of 60 dogs with a presumptive prior diagnosis of OA in at least one limb joint. Two outcomes assessing changes in the dog's QOL and functionality were measured: subjectively determined changes in eight behaviours associated with discomfort and objectively determined changes in passive range of motion (PROM). The device was secured near the cervico-thoracic region of the dog's spine. PROM measures were taken at baseline and at the end of study. Behavioural measures were taken daily. Forty-nine animals completed the study. No negative side effects were reported. Average subjective discomfort scores for the treatment group (N=26) were reduced from 3.74 to 2.10 (44%), compared to no improvement in the placebo group (N=23) over the study period (p=0.0001). Average PROM scores increased by 5.51 (4.59-6.23) degrees relative to the placebo group (p<0.01). Ninety-six per cent of the treatment group showed either increased PROM or improved behavioural changes or both, compared to 4% for the placebo group (p<0.01). Most changes occurred within the first 8 days of treatment. PSWT applied at the level of the cervico-thoracic spine to target the vagus nerve may have the potential to improve QOL in dogs manifesting behaviours commonly associated with OA.

Impact of Pulsed Electromagnetic Field Therapy and Aerobic Exercise on Patients Suffering With Hypertension: A Systematic Review.

Hypertension is a major preventable risk factor for cardiovascular disease. This reviewevaluates the effects of pulsed electromagnetic field (PEMF) therapy and aerobic exercise on blood pressure (BP) levels in hypertensive patients. This study incorporated research conducted between 2012 and 2020 that was found through a systematic literature search. The measures used to estimate the improvement in BP include the BP measurements, quality-of-life (QOL) scale, and plasma nitric oxide (NO) level. The examination of the review comprised eight studies. These encompassed studies involving individuals with a systolic BP (SBP) above 140 mmHg and a diastolic BP (DBP) above 90 mmHg; those falling within the age range of 40 to 60 years, including both genders; and patients on antihypertensive medications. The review of selected articles concluded that PEMFtherapy and aerobic exercise positively impact BP among individuals with hypertension. Aerobic exercises of moderate intensity including brisk walking, jogging, and cycling type of aerobic exercises help reduce BP and maintain patients' physical fitness. PEMF therapy is a complementary approach that affects the biological system and potential health, positively impacting BP. Results indicate that PEMF therapy can be a nonpharmacological method to manage BP in clinical populations. More thorough research is necessary to understand the best dosage, long-term effects, and comparison between PEMF therapy and aerobic exercise.

Early Intensive Neurorehabilitation in Traumatic Peripheral Nerve Injury-State of the Art.

Traumatic nerve injuries are common lesions that affect several hundred thousand humans, as well as dogs and cats. The assessment of nerve regeneration through animal models may provide information for translational research and future therapeutic options that can be applied mutually in veterinary and human medicine, from a One Health perspective. This review offers a hands-on vision of the non-invasive and conservative approaches to peripheral nerve injury, focusing on the role of neurorehabilitation in nerve repair and regeneration. The peripheral nerve injury may lead to hypersensitivity, allodynia and hyperalgesia, with the possibility of joint contractures, decreasing functionality and impairing the quality of life. The question remains regarding how to improve nerve repair with surgical possibilities, but also considering electrical stimulation modalities by modulating sensory feedback, upregulation of BDNF, GFNF, TrKB and adenosine monophosphate, maintaining muscle mass and modulating fatigue. This could be improved by the positive synergetic effect of exercises and physical activity with locomotor training, and other physical modalities (low-level laser therapy, ultrasounds, pulsed electromagnetic fields, electroacupuncture and others). In addition, the use of cell-based therapies is an innovative treatment tool in this field. These strategies may help avoid situations of permanent monoplegic limbs that could lead to amputation.

Positive and Negative Effects of Administering a Magnetic Field to Patients with Rheumatoid Arthritis (RA).

Background: Magnetotherapy applied to patients with rheumatoid arthritis (RA) produces anti-inflammatory, analgesic and antioedema effects. Observations suggest that the beneficial and adverse effects of magnetotherapy are related to the parameters of the magnetic field applied. This study aimed to assess the positive and negative effects of magnetotherapy, taking into account the type of the field. Methods: This study involved 39 patients with RA, who were randomly assigned to two groups: SMF-static magnetic field (n = 18) and PEMF-low-frequency pulsed electromagnetic field (n = 21). The examinations carried out before and after the therapy included a general assessment of the functional status, assessment of pain severity, measurement of the duration and severity of morning stiffness, computer-aided measurement of the range of motion of the hand joints and measurement of the hand volume using water displacement method. The patients received kinesiotherapy and magnetotherapy, as determined by the randomisation. Results: The findings show improved functional status by 0.26 points on average (p = 0.0166) measured with the Health Assessment Questionnaire (HAQ-20), reduced pain by 2.2 points on average (p = 0.0000) on the Visual Analogue Scale (VAS), decreased duration of morning stiffness by 23.2 min on average (p = 0.0010) and reduced severity of morning stiffness by 15.2 points on average (p = 0.0010). The assessment of the dominant hand showed improved range of motion by 1.9 mm on average (p = 0.0036) and reduced volume by 0.9 mm3 on average (p = 0.0230). A significantly reduced duration and severity of morning stiffness was observed in the SMF group. Statistically significant changes in the HAQ-20 scores, range of motion and the volume of the dominant hand were identified in the PEMF group. Conclusions: Magnetic fields improved the functional status and reduced pain, morning stiffness and swelling in the hand. A static magnetic field may be more effective in reducing morning stiffness, whereas a pulsed magnetic field may, to a greater extent, improve function and reduce swelling in the rheumatoid hand. The effects of magnetotherapy reported so far require further observation.

Comparison of pulsed and continuous electromagnetic field generated by WPT system on human dermal and neural cells

In recent decades, we have seen significant technical progress in the modern world, leading to the widespread use of telecommunications systems, electrical appliances, and wireless technologies. These devices generate electromagnetic radiation (EMR) and electromagnetic fields (EMF) most often in the extremely low frequency or radio-frequency range. Therefore, they were included in the group of environmental risk factors that affect the human body and health on a daily basis. In this study, we tested the effect of exposure EMF generated by a new prototype wireless charging system on four human cell lines (normal cell lines—HDFa, NHA; tumor cell lines—SH-SY5Y, T98G). We tested different operating parameters of the wireless power transfer (WPT) device (87–207 kHz, 1.01–1.05 kW, 1.3–1.7 mT) at different exposure times (pulsed 6 × 10 min; continuous 1 × 60 min). We observed the effect of EMF on cell morphology and cytoskeletal changes, cell viability and mitotic activity, cytotoxicity, genotoxicity, and oxidative stress. The results of our study did not show any negative effect of the generated EMF on either normal cells or tumor cell lines. However, in order to be able to estimate the risk, further population and epidemiological studies are needed, which would reveal the clinical consequences of EMF impact.