1
|
Derderian GP, Otenbaker N. A prospective study of patients with post treatment Lyme disease syndrome treated with modified VFEM energy. J Cosmet Dermatol 2024; 23:2044-2048. [PMID: 38613155 DOI: 10.1111/jocd.16256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/29/2024] [Accepted: 02/18/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND We previously demonstrated a possible therapeutic benefit of VFEM (variable frequency electromagnetic energy) technology for the treatment of Post Treatment Lyme Disease Syndrome (PTLDS) or Chronic Lyme Disease (CLD). As a result, we prospectively enrolled 10 patients, all having significant debility, to determine to what extent we could improve their quality of life. Eight patients completed the 10 treatments. RESULTS All eight patients had a significant improvement in quality of life within a 4-month time frame. CONCLUSION VFEM is a stand-alone modality that appears to demonstrate a significant improvement in quality of life in PTLDS or CLD with little or no risk or side effects of treatment.
Collapse
|
2
|
Veronese S, Bacci PA, Garcia-Gimenez V, Canel Micheloud CC, Haro García NL, Sbarbati A. V-EMF therapy: A new painless and completely non-invasive treatment for striae gravidarum. J Cosmet Dermatol 2024; 23:2007-2014. [PMID: 38549181 DOI: 10.1111/jocd.16220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/06/2023] [Accepted: 01/29/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND The appearance of striae gravidarum (SG) during pregnancy is a common problem. The most common SG are abdominal striae, which can cause the greatest sequelae after pregnancy, and in the long term. There are several solutions to prevent and treat these striae, but not all are completely effective, and not without side effects. AIMS The aim of this study was to evaluate the effectiveness of a treatment that applies an electromagnetic field under vacuum (V-EMF therapy) on the abdominal SG. METHODS A retrospective analysis was conducted on the medical records of 26 women affected by abdominal SG and treated with V-EMF therapy. The results were evaluated using two different 5-point Likert Scales: one administered to the treated subjects to evaluate their satisfaction, and one to the doctors who performed the treatment, to evaluate the improvement of the striae. The presence of side effects, and the effects of sun exposure after treatment were also considered. RESULTS Only two treated subjects rated their level of satisfaction with a Score III on the Liker Scale. Everyone else expressed higher levels of satisfaction. Only one doctor rated the improvement of the striae with a Liker scale score of III. All the others reported greater improvements. No discomfort or side effects were noted either during the individual treatment sessions, or at the end of the treatment. The striae showed a newfound ability to tan. CONCLUSIONS V-EMF therapy proves to be a valid, safe, and effective treatment modality for SG.
Collapse
Affiliation(s)
- Sheila Veronese
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Pier Antonio Bacci
- Medical Centre for Vascular Diseases and Aesthetic Pathologies, Arezzo, Italy
| | - Victor Garcia-Gimenez
- Knowledge and Management in Physiological Aging Medicine Universidad Autónoma de Barcelona, Barcelona, Spain
| | | | | | - Andrea Sbarbati
- Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| |
Collapse
|
3
|
Chen C, Zhang J, Zhang H, Li H, Yu J, Pei Y, Fang Y. Effects of different treatment frequencies of electromagnetic stimulation for urinary incontinence in women: study protocol for a randomized controlled trial. Trials 2024; 25:285. [PMID: 38671503 PMCID: PMC11055314 DOI: 10.1186/s13063-024-08103-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Urinary incontinence is highly prevalent in women while pelvic floor muscle training is recommended as the first-line therapy. However, the exact treatment regimen is poorly understood. Also, patients with pelvic floor muscle damage may have decreased muscle proprioception and cannot contract their muscles properly. Other conservative treatments including electromagnetic stimulation are suggested by several guidelines. Thus, the present study aims to compare the effectiveness of electromagnetic stimulation combined with pelvic floor muscle training as a conjunct treatment for urinary incontinence and different treatment frequencies will be investigated. METHODS/DESIGN This is a randomized, controlled clinical trial. We will include 165 patients with urinary incontinence from the outpatient center. Participants who meet the inclusion criteria will be randomly allocated to three groups: the pelvic floor muscle training group (active control group), the low-frequency electromagnetic stimulation group (group 1), and the high-frequency electromagnetic stimulation group (group 2). Both group 1 and group 2 will receive ten sessions of electromagnetic stimulation. Group 1 will be treated twice per week for 5 weeks while group 2 will receive 10 days of continuous treatment. The primary outcome is the change in International Consultation on Incontinence Questionnaire-Short Form cores after the ten sessions of the treatment, while the secondary outcomes include a 3-day bladder diary, pelvic floor muscle function, pelvic organ prolapse quantification, and quality of life assessed by SF-12. All the measurements will be assessed at baseline, after the intervention, and after 3 months of follow-up. DISCUSSION The present trial is designed to investigate the effects of a conjunct physiotherapy program for urinary incontinence in women. We hypothesize that this strategy is more effective than pelvic floor muscle training alone, and high-frequency electromagnetic stimulation will be superior to the low-frequency magnetic stimulation group.
Collapse
Affiliation(s)
- Chunmei Chen
- Department of Women's Health, School of Medicine, Chengdu Women's and Children's Central Hospital, The Affiliatedffiliatedffiliated Women's and Children's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Jing Zhang
- Department of Women's Health, School of Medicine, Chengdu Women's and Children's Central Hospital, The Affiliatedffiliatedffiliated Women's and Children's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Hong Zhang
- Department of Women's Health, Jinniu Maternity and Child Health Hospital of Chengdu, Chengdu, China
| | - Haiyan Li
- Jiangsu Department of Science and Technology, Jiangsu Province Pelvic Floor Rehabilitation Engineering Technology Research Center, Zhenjiang, China
| | - Jucheng Yu
- Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Yao Pei
- State Key Laboratory of Emerging Infectious Diseases and Centre of Influenza Research, School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Yuan Fang
- Jiangsu Department of Science and Technology, Jiangsu Province Pelvic Floor Rehabilitation Engineering Technology Research Center, Zhenjiang, China.
| |
Collapse
|
4
|
Goldberg DJ. Induction of fat apoptosis by a combination of synchronized radiofrequency and HIFEM technology: Human histology study. J Cosmet Dermatol 2024; 23:812-817. [PMID: 38279191 DOI: 10.1111/jocd.16197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/28/2024]
Abstract
PURPOSE With the growing demand for more effective fat reduction techniques, a combination of synchronized radiofrequency (RF) and HIFEM has been introduced. Preceding studies evidenced the ability of RF+HIFEM to maintain the fat tissue temperature at the levels necessary for adipocyte apoptosis while documenting the induced changes to the fat tissue during the several weeks after the treatment. This study aims to demonstrate the induction of apoptosis by RF+HIFEM technology in the early stages through the assessment of caspase-3 protein, one of the apoptosis-executing proteases. DESIGN In this two-arm, single-center, randomized trial, nine human subjects were enrolled and assigned into two groups, either the active group (N = 6) treated with both RF+HIFEM set at the highest tolerated levels or the sham group (N = 3) treated with 5% of the maximum RF+HIFEM power, serving as a control. All patients were scheduled to undergo one treatment visit of the abdominal area, two follow-up visits at 8 and 24 h, and one safety visit 7 days after the treatment. A punch biopsy (5 mm in diameter, approximately 10 mm in depth) was obtained from the abdominal area at the baseline and consecutive follow-up visits. Samples were fixed, and cut into 5 μm thick slices, and immunohistochemical staining was used to visualize the Caspase-3, revealing the adipocyte nuclei where apoptosis processes are in progress. FINDINGS Documented findings suggest that the temperature threshold of 43-45°C is required to initiate fat apoptosis and consequent reduction in adipocyte number was achieved during the combined treatment with RF+HIFEM. The active group showed an elevated ratio of positively stained nuclei versus all adipocyte nuclei found on the evaluated slices-referred to as the apoptotic index (AI). The AI significantly (p < 0.001) increased at both 8 h (47.01 ± 10.56%) and 24 h (43.58 ± 6.35%) posttreatment. The Sham group showed no significant change in the AI (p > 0.05). No adverse events or side effects related to the treatments were observed. SUMMARY This study supports previously published evidence on fat reduction after RF+HIFEM treatment, documenting the safe initiation of adipocyte programmed cell death posttreatment.
Collapse
Affiliation(s)
- David J Goldberg
- Skin Laser & Surgery Specialists, Division of Schwieger Dermatology Group, New York, New York, USA
- Department of Dermatology, Icahn School of Medicine at Mt. Sinai, New York, New York, USA
| |
Collapse
|
5
|
Markovic L, Wagner B, Crevenna R. Effects of pulsed electromagnetic field therapy on outcomes associated with osteoarthritis : A systematic review of systematic reviews. Wien Klin Wochenschr 2022; 134:425-433. [PMID: 35362792 PMCID: PMC9213303 DOI: 10.1007/s00508-022-02020-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/23/2022] [Indexed: 11/30/2022]
Abstract
Background Osteoarthritis (OA) is a chronic degenerative disease of multiple joints with a rising prevalence. Pulsed electromagnetic field (PEMF) therapy may provide a cost-effective, noninvasive, and safe therapeutic modality with growing popularity and use in physical medicine and rehabilitation. The purpose of this study was to synthesize the current knowledge on the use of PEMF in OA. Methods A systematic review of systematic reviews was performed. The PubMed, Embase, PEDro and Web of Science databases were searched based on a predetermined protocol. Results Overall, 69 studies were identified. After removing the duplicates and then screening title, abstract and full text, 10 studies were included in the final analysis. All studies focused on knee OA, and four studies also reported on cervical, two on hand, and one on ankle OA. In terms of the level of evidence and bias, most studies were of low or medium quality. Most concurrence was observed for pain reduction, with other endpoints such as stiffness or physical function showing a greater variability in outcomes. Conclusion The PEMF therapy appears to be effective in the short term to relieve pain and improve function in patients with OA. The existing studies used very heterogeneous treatment schemes, mostly with low sample sizes and suboptimal study designs, from which no sufficient proof of efficacy can be derived. A catalogue of measures to improve the quality of future studies has been drawn up.
Collapse
Affiliation(s)
- Lovro Markovic
- Department of Physical Medicine, Rehabilitation and Occupational Medicine, Medical University of Vienna, Waehringer Guertel 18–20, 1090 Vienna, Austria
| | - Barbara Wagner
- Department of Physical Medicine, Rehabilitation and Occupational Medicine, Medical University of Vienna, Waehringer Guertel 18–20, 1090 Vienna, Austria
| | - Richard Crevenna
- Department of Physical Medicine, Rehabilitation and Occupational Medicine, Medical University of Vienna, Waehringer Guertel 18–20, 1090 Vienna, Austria
| |
Collapse
|
6
|
Crasto W, Altaf QA, Selvaraj DR, Jack B, Patel V, Nawaz S, Murthy N, Sukumar N, Saravanan P, Tahrani AA. Frequency Rhythmic Electrical Modulation System (FREMS) to alleviate painful diabetic peripheral neuropathy: A pilot, randomised controlled trial (The FREMSTOP study). Diabet Med 2022; 39:e14710. [PMID: 34605077 DOI: 10.1111/dme.14710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 09/29/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Frequency Rhythmic Electrical Modulated System (FREMS) is a non-invasive treatment for chronic pain conditions, but its place in the treatment algorithm for painful diabetic peripheral neuropathy (PDPN) is unknown. METHODS A pilot, open-label, randomised controlled trial in individuals with PDPN inadequately controlled on at least dual neuropathic pain treatments recruited from primary and secondary care. Participants were randomised 1:1 to FREMS + usual care (n = 13) versus usual care (n = 12). Primary outcome was change from baseline in perceived pain (assessed by visual analogue scale) at 12 weeks between treatment groups. RESULTS Of 25 participants, 14 (56%) were men, and 21 (84%) were White Europeans. Median (IQR) age and duration of diabetes were 64 (56, 68) and 14 (10, 20) years, respectively. At 12 weeks, FREMS showed improvements in perceived pain compared with baseline, although the change was not statistically significant from control group (-4.0[-5.0,0.4] vs. 0[-0.3,0.7], p = 0.087). There were significant improvements in pain with FREMS, assessed by McGill Pain questionnaire (p = 0.042) and Douleur neuropathique-4 questionnaire (p = 0.042). More participants on FREMS had greater than 30 percent reductions in perceived pain compared with controls [7/13(54%) vs 0/12(0%), p = 0.042] and significant improvements in Patient Global Impression of Change (p = 0.005). FREMS intervention had moderate benefits in quality of life, sleep, depression and pain medication use, but these were not statistically significant. CONCLUSIONS FREMS might be used to treat individuals with PDPN inadequately controlled on two classes of neuropathic pain medications and is associated with improvements in pain severity and perceived impact of treatment. A larger, appropriately designed trial assessing its impact in this population is needed.
Collapse
Affiliation(s)
- Winston Crasto
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
| | - Quratul-Ain Altaf
- Department of Diabetes and Endocrinology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- Centre of Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
| | - Dhiraj Ravindran Selvaraj
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
| | - Bukola Jack
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
| | - Vinod Patel
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
- Warwick Medical school, University of Warwick, Coventry, UK
| | - Sarfaraz Nawaz
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
| | - Narasimha Murthy
- Department of Diabetes and Endocrinology, University Hospitals Coventry and Warwickshire, Coventry, UK
| | - Nithya Sukumar
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
- Populations, Evidence and Technologies, Division of Health Sciences, Warwick Medical school, University of Warwick, Coventry, UK
| | - Ponnusamy Saravanan
- Academic Department of Diabetes, Endocrinology and Metabolism, George Eliot Hospital NHS Trust, Nuneaton, UK
- Populations, Evidence and Technologies, Division of Health Sciences, Warwick Medical school, University of Warwick, Coventry, UK
| | - Abd A Tahrani
- Department of Diabetes and Endocrinology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- Centre of Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| |
Collapse
|
7
|
Abstract
The theranostics paradigm is based on the concept of combining therapeutic and diagnostic modalities into one platform to improve the effectiveness of treatment. Combinations of multiple modalities provide numerous medical advantages and are enabled by nano- and micron-sized mediators. Here we review recent advancements in the field of ultrasound theranostics and the use of magnetic materials as mediators. Several subdisciplines are described in detail, including controlled drug delivery and release, ultrasound hyperthermia, magneto-ultrasonic heating, sonodynamic therapy, magnetoacoustic imaging, ultrasonic wave generation by magnetic fields, and ultrasound tomography. The continuous progress and improvement in theranostic materials, methods, and physical computing models have created undeniable possibilities for the development of new approaches. We discuss the prospects of ultrasound theranostics and possible expansions of other studies to the theranostic context.
Collapse
Affiliation(s)
- Arkadiusz Józefczak
- Chair of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| | - Katarzyna Kaczmarek
- Department of Biomedical Engineering, Faculty of Engineering, University of Strathclyde, Wolfson Centre, 106 Rottenrow, Glasgow, United Kingdom
| | - Rafał Bielas
- Chair of Acoustics, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
| |
Collapse
|
8
|
Prospero AG, Pinto LA, Matos RVR, Soares GA, Oliveira RB, Mascarenhas S, Miranda JRDA. New device for active gastric mechanical stimulation. Neurogastroenterol Motil 2021; 33:e14169. [PMID: 33969918 DOI: 10.1111/nmo.14169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 04/16/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Gastroparesis is a chronic stomach disorder and effective treatment is the aim of different strategies. Alternative therapies consist of an electrical stimulation of the stomach to evoke a response in the gastric activity. We present the development and in vivo application of an electromagnet system to induce a mechanical stimulus in the stomach aiming for gastric contractile responses. METHODS The electromagnet system consisted of an implantable magnet and an external drive coil. We implanted the magnet at the greater curvature of the gastric body in rats. We applied an alternating current to the drive coils, inducing mechanical stimulation of the gastric wall. We measured the gastric contraction activity and gastric electrical activity in response to the stimulus using AC biosusceptometry and electrogastrography. Moreover, we used the phenol red to evaluate the stimulus effects on gastrointestinal transit. KEY RESULTS The stimulus increased the spectral intensity and signal-to-noise ratio significantly of gastric contraction activity and gastric electrical activity. Furthermore, we found a lower phenol red retention in the stomach in rats without stimulus. No significant differences were found in frequency and root mean square amplitude. CONCLUSIONS & INFERENCES We developed a new simple electromagnet system that evoked a contraction and gastric electrical response using a mechanical stimulus and decreased gastric emptying time. The system is an accessible tool and may contribute to gastroparesis studies in animals.
Collapse
Affiliation(s)
- Andre Gonçalves Prospero
- Departamento de Biofísica e Farmacologia, Laboratório de Biomagnetismo, UNESP/São Paulo State University, Botucatu, Brazil
| | - Leonardo Antonio Pinto
- Departamento de Biofísica e Farmacologia, Laboratório de Biomagnetismo, UNESP/São Paulo State University, Botucatu, Brazil
| | - Ronaldo Vitor Reis Matos
- Departamento de Biofísica e Farmacologia, Laboratório de Biomagnetismo, UNESP/São Paulo State University, Botucatu, Brazil
| | - Guilherme Augusto Soares
- Departamento de Biofísica e Farmacologia, Laboratório de Biomagnetismo, UNESP/São Paulo State University, Botucatu, Brazil
| | - Ricardo Brandt Oliveira
- Faculdade de Medicina de Ribeirão Preto, USP/University of São Paulo, Ribeirão Preto, Brazil
| | | | - José Ricardo de Arruda Miranda
- Departamento de Biofísica e Farmacologia, Laboratório de Biomagnetismo, UNESP/São Paulo State University, Botucatu, Brazil
| |
Collapse
|
9
|
Dominguez-Nicolas SM, Manjarrez E. Low-field thoracic magnetic stimulation increases peripheral oxygen saturation levels in coronavirus disease (COVID-19) patients: A single-blind, sham-controlled, crossover study. Medicine (Baltimore) 2021; 100:e27444. [PMID: 34622862 PMCID: PMC8500560 DOI: 10.1097/md.0000000000027444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/17/2021] [Indexed: 01/05/2023] Open
Abstract
ABSTRACT Severe acute respiratory syndrome coronavirus-2 may cause low oxygen saturation (SpO2) and respiratory failure in patients with coronavirus disease (COVID-19). Hence, increased SpO2 levels in COVID-19 patients could be crucial for their quality of life and recovery. This study aimed to demonstrate that a 30-minute single session of dorsal low-field thoracic magnetic stimulation (LF-ThMS) can be employed to increase SpO2 levels in COVID-19 patients significantly. Furthermore, we hypothesized that the variables associated with LF-ThMS, such as frequency, magnetic flux density, and temperature in the dorsal thorax, might be correlated to SpO2 levels in these patients.Here we employed an LF-ThMS device to noninvasively deliver a pulsed magnetic field from 100 to 118 Hz and 10.5 to 13.1 milliTesla (i.e., 105 to 131 Gauss) to the dorsal thorax. These values are within the intensity range of several pulsed electromagnetic field devices employed in physical therapy worldwide. We designed a single-blind, sham-controlled, crossover study on 5 COVID-19 patients who underwent 2 sessions of the study (real and sham LF-ThMS) and 12 patients who underwent only the real LF-ThMS.We found a statistically significant positive correlation between magnetic flux density, frequency, or temperature, associated with the real LF-ThMS and SpO2 levels in all COVID-19 patients. However, the 5 patients in the sham-controlled study did not exhibit a significant change in their SpO2 levels during sham stimulation. The employed frequencies and magnetic flux densities were safe for the patients. We did not observe adverse events after the LF-ThMS intervention.This study is a proof-of-concept that a single session of LF-ThMS applied for 30 minutes to the dorsal thorax of 17 COVID-19 patients significantly increased their SpO2 levels. However, future research will be needed to understand the physiological mechanisms behind this finding.The study was registered at ClinicalTrials.gov (Identifier: NCT04895267, registered on May 20, 2021) retrospectively registered. https://clinicaltrials.gov/ct2/show/NCT04895267.
Collapse
Affiliation(s)
- Saul M Dominguez-Nicolas
- Centro de Investigación de Micro y Nanotecnología, Universidad Veracruzana, Calzada Ruiz Cortines 455 Boca del Rio, Veracruz, México
- Facultad de Ingeniería Eléctrica y Electrónica, Universidad Veracruzana, Calzada Ruiz Cortines 455, Boca del Rio, Veracruz, México
| | - Elias Manjarrez
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, 14 Sur 6301, Colonia San Manuel, Apartado Postal 406, Puebla, Puebla, México
| |
Collapse
|
10
|
Eid MM, El-Gendy AM, Abdelbasset WK, Elkholi SM, Abdel-fattah MS. The effect of magnetic therapy and moderate aerobic exercise on osteoporotic patients: A randomized clinical study. Medicine (Baltimore) 2021; 100:e27379. [PMID: 34596156 PMCID: PMC8483884 DOI: 10.1097/md.0000000000027379] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 09/13/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Osteoporosis is a frequent musculoskeletal condition with significant complications that would be a global health problem and one of the major causes of mortality and morbidity. OBJECTIVES The current study aimed to ascertain the impact of pulsed magnetic therapy, aerobic exercise, and a combination of both modalities on osteoporotic female patients postthyroidectomy. METHODS Between May 2018 and September 2019, 45 female patients with osteoporosis were included in the randomized clinical study, their age ranged from 40 to 50 years, had thyroidectomy for at least 6 months ago, and had an inactive lifestyle for at least the previous 6 months. Patients were assigned randomly into 3 equal groups. Group A (magnetic therapy group): received routine medical treatment (bisphosphonates, calcium, and vitamin D) in addition to pulsed magnetic therapy on the hip region for 12 weeks (3 sessions/week). Group B (exercise group): received routine medical treatment plus moderate-intensity aerobic exercise for 12 weeks (3 sessions/week). Group C (combined magnetic therapy and exercise therapy group): received routine medical treatment plus pulsed magnetic therapy and moderate-intensity aerobic exercise for 12 weeks (3 sessions/week). The 3 groups were assessed for bone mineral density (BMD) at baseline by dual-energy x-ray absorptiometry and after 12 weeks of treatment. RESULTS The results showed that within-group analysis a statistically significant increase was reveled (P < .05) for BMD in the 3 studied groups. Comparing the results among the 3 tested groups revealed a significant increase (P < .05) in posttesting mean values of BMD in group (C) compared to group (A) and group (B). No significant statistical difference in BMD means values between the 2 groups (A) and (B) after testing was detected. CONCLUSION Combination of both pulsed magnetic therapy and moderate-intensity aerobic exercise showed significant improvement in BMD at the hip region than using any of the 2 modalities alone.
Collapse
Affiliation(s)
- Marwa M. Eid
- Department of Physical Therapy, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Department of Physical Therapy for Surgery, Faculty of Physical Therapy, Cairo University, Giza, Egypt
| | - Amira M. El-Gendy
- Department of Physical Therapy, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Department of Basic Sciences, Faculty of Physical Therapy, Cairo University, Giza, Egypt
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
- Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt
| | - Safaa Mostafa Elkholi
- Department of Rehabilitation Sciences, Faculty of Health and Rehabilitation Sciences, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mostafa S. Abdel-fattah
- Department of Physical Therapy for Cardiovascular/Respiratory Disorder and Geriatrics, Faculty of Physical Therapy, Cairo University, Giza, Egypt
| |
Collapse
|
11
|
Hollenberg AM, Huber A, Smith CO, Eliseev RA. Electromagnetic stimulation increases mitochondrial function in osteogenic cells and promotes bone fracture repair. Sci Rep 2021; 11:19114. [PMID: 34580378 PMCID: PMC8476611 DOI: 10.1038/s41598-021-98625-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
Bone fracture is a growing public health burden and there is a clinical need for non-invasive therapies to aid in the fracture healing process. Previous studies have demonstrated the utility of electromagnetic (EM) fields in promoting bone repair; however, its underlying mechanism of action is unclear. Interestingly, there is a growing body of literature describing positive effects of an EM field on mitochondria. In our own work, we have previously demonstrated that differentiation of osteoprogenitors into osteoblasts involves activation of mitochondrial oxidative phosphorylation (OxPhos). Therefore, it was reasonable to propose that EM field therapy exerts bone anabolic effects via stimulation of mitochondrial OxPhos. In this study, we show that application of a low intensity constant EM field source on osteogenic cells in vitro resulted in increased mitochondrial membrane potential and respiratory complex I activity and induced osteogenic differentiation. In the presence of mitochondrial inhibitor antimycin A, the osteoinductive effect was reversed, confirming that this effect was mediated via increased OxPhos activity. Using a mouse tibial bone fracture model in vivo, we show that application of a low intensity constant EM field source enhanced fracture repair via improved biomechanical properties and increased callus bone mineralization. Overall, this study provides supporting evidence that EM field therapy promotes bone fracture repair through mitochondrial OxPhos activation.
Collapse
Affiliation(s)
- Alex M Hollenberg
- Center for Musculoskeletal Research, University of Rochester School of Medicine & Dentistry, Rochester, NY, USA
| | - Aric Huber
- Center for Musculoskeletal Research, University of Rochester School of Medicine & Dentistry, Rochester, NY, USA
| | - Charles O Smith
- Center for Musculoskeletal Research, University of Rochester School of Medicine & Dentistry, Rochester, NY, USA
| | - Roman A Eliseev
- Center for Musculoskeletal Research, University of Rochester School of Medicine & Dentistry, Rochester, NY, USA.
- University of Rochester Medical Center, 601 Elmwood Ave, Rm 1-8541, Rochester, NY, 14642, USA.
| |
Collapse
|
12
|
Helekar SA, Hambarde S, Ijare OB, Pichumani K, Baskin DS, Sharpe MA. Selective induction of rapid cytotoxic effect in glioblastoma cells by oscillating magnetic fields. J Cancer Res Clin Oncol 2021; 147:3577-3589. [PMID: 34477946 DOI: 10.1007/s00432-021-03787-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/28/2021] [Indexed: 01/03/2023]
Abstract
PURPOSE The mechanisms underlying anticancer effects of electromagnetic fields are poorly understood. An alternating electric field-generating therapeutic device called Optune™ device has been approved for the treatment of glioblastoma (GBM). We have developed a new device that generates oscillating magnetic fields (OMF) by rapid rotation of strong permanent magnets in specially designed patterns of frequency and timing and have used it to treat an end-stage recurrent GBM patient under an expanded access/compassionate use treatment protocol. Here, we ask whether OMF causes selective cytotoxic effects in GBM and whether it is through generation of reactive oxygen species (ROS). METHODS We stimulated patient derived GBM cells, lung cancer cells, normal human cortical neurons, astrocytes, and bronchial epithelial cells using OMF generators (oncoscillators) of our Oncomagnetic Device and compared the results to those obtained under unstimulated or sham-stimulated control conditions. Quantitative fluorescence microscopy was used to assess cell morphology, viability, and ROS production mechanisms. RESULTS We find that OMF induces highly selective cell death of patient derived GBM cells associated with activation of caspase 3, while leaving normal tissue cells undamaged. The cytotoxic effect of OMF is also seen in pulmonary cancer cells. The underlying mechanism is a marked increase in ROS in the mitochondria, possibly in part through perturbation of the electron flow in the respiratory chain. CONCLUSION Rotating magnetic fields produced by a new noninvasive device selectively kill cultured human glioblastoma and non-small cell lung cancer cells by raising intracellular reactive oxygen species, but not normal human tissue cells.
Collapse
Affiliation(s)
- Santosh A Helekar
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, 6445 Main St., Floor 24, Houston, TX, 77030, USA.
- Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA.
- Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA.
- Department of Neurosurgery, Weill Cornell Medical College, New York, NY, USA.
| | - Shashank Hambarde
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, 6445 Main St., Floor 24, Houston, TX, 77030, USA
- Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA
- Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
| | - Omkar B Ijare
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, 6445 Main St., Floor 24, Houston, TX, 77030, USA
- Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA
- Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
| | - Kumar Pichumani
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, 6445 Main St., Floor 24, Houston, TX, 77030, USA
- Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA
- Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
- Department of Neurosurgery, Weill Cornell Medical College, New York, NY, USA
| | - David S Baskin
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, 6445 Main St., Floor 24, Houston, TX, 77030, USA
- Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA
- Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
- Department of Neurosurgery, Weill Cornell Medical College, New York, NY, USA
| | - Martyn A Sharpe
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, 6445 Main St., Floor 24, Houston, TX, 77030, USA
- Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA
- Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
| |
Collapse
|
13
|
Weiss RA, Bernardy J, Tichy F. Simultaneous Application of High-Intensity Focused Electromagnetic and Synchronized Radiofrequency for Fat Disruption: Histological and Electron Microscopy Porcine Model Study. Dermatol Surg 2021; 47:1059-1064. [PMID: 34115683 DOI: 10.1097/dss.0000000000003091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Radiofrequency (RF) and high-intensity focused electromagnetic (HIFEM) technologies are used for noninvasive body shaping as standalone modalities. OBJECTIVE To examine the effects of novel synchronized RF and HIFEM on subcutaneous adipose tissue in a porcine animal model. MATERIALS AND METHODS Seven large white pigs aged 6 months received 3 abdominal treatments of simultaneous application of synchronized RF and HIFEM (30 minutes, once per week). Punch biopsies of treated and control subcutaneous tissue were collected at the baseline, 4 days, 2 weeks, 1 month, and 2 months. Specimens were examined by light and scanning electron microscopy. Adipocyte volume was analyzed. Fat tissue temperature was measured in situ (fiber optic probes) and superficially (thermal imager). RESULTS Fat layer was heated to temperatures of 42 to 45°C. Signs of fat apoptosis (shape alternations and pyknotic nuclei) appeared at day 4 and peaked between 2 weeks and 1 month. Adipocyte volume decreased significantly (p < .001) by 31.1% at 2 weeks, 1 month (-23.6%), and 2 months (-22.0%). Control samples showed healthy adipocytes. Scanning electron microscopy micrographs corroborated histology findings, showing flattened, volume-depleted and disrupted adipocytes. CONCLUSION Synchronized RF with HIFEM procedure resulted in a significant and sustained fat reduction with no adverse events.
Collapse
Affiliation(s)
- Robert A Weiss
- Maryland Laser Skin, & Vein Institute, Hunt Valley, Maryland
| | | | - Frantisek Tichy
- Department of Anatomy and Histology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, CZ
| |
Collapse
|
14
|
Caliogna L, Medetti M, Bina V, Brancato AM, Castelli A, Jannelli E, Ivone A, Gastaldi G, Annunziata S, Mosconi M, Pasta G. Pulsed Electromagnetic Fields in Bone Healing: Molecular Pathways and Clinical Applications. Int J Mol Sci 2021; 22:ijms22147403. [PMID: 34299021 PMCID: PMC8303968 DOI: 10.3390/ijms22147403] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 02/05/2023] Open
Abstract
In this article, we provide an extensive review of the recent literature of the signaling pathways modulated by Pulsed Electromagnetic Fields (PEMFs) and PEMFs clinical application. A review of the literature was performed on two medical electronic databases (PubMed and Embase) from 3 to 5 March 2021. Three authors performed the evaluation of the studies and the data extraction. All studies for this review were selected following these inclusion criteria: studies written in English, studies available in full text and studies published in peer-reviewed journal. Molecular biology, identifying cell membrane receptors and pathways involved in bone healing, and studying PEMFs target of action are giving a solid basis for clinical applications of PEMFs. However, further biology studies and clinical trials with clear and standardized parameters (intensity, frequency, dose, duration, type of coil) are required to clarify the precise dose-response relationship and to understand the real applications in clinical practice of PEMFs.
Collapse
Affiliation(s)
- Laura Caliogna
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Marta Medetti
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Valentina Bina
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy;
- Correspondence:
| | - Alice Maria Brancato
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Alberto Castelli
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Eugenio Jannelli
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Alessandro Ivone
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Giulia Gastaldi
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy;
- Centre for Health Technologies, University of Pavia, 27100 Pavia, Italy
| | - Salvatore Annunziata
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Mario Mosconi
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| | - Gianluigi Pasta
- Orthopedics and Traumatology Clinic, IRCCS Policlinico San Matteo Foundation, 27100 Pavia, Italy; (L.C.); (M.M.); (A.M.B.); (A.C.); (E.J.); (A.I.); (S.A.); (M.M.); (G.P.)
| |
Collapse
|
15
|
Abstract
BACKGROUND Magnetic seizure therapy (MST) is a potential alternative to electroconvulsive therapy (ECT). Reports to date on use of MST for patients with treatment-resistant depression (TRD) are limited. OBJECTIVES To evaluate the effects of MST in comparison with sham-MST, antidepressant, and other forms of electric or magnetic treatment for adults with TRD. SEARCH METHODS In March 2020, we searched a wide range of international electronic sources for published, unpublished, and ongoing studies. We handsearched the reference lists of all included studies and relevant systematic reviews and conference proceedings of the Annual Meeting of the American College of Neuropsychopharmacology (ACNP), the Annual Scientific Convention and Meeting, and the Annual Meeting of the European College of Neuropsychopharmacology (ECNP) to identify additional studies. SELECTION CRITERIA All randomised clinical trials (RCTs) focused on MST for adults with TRD. DATA COLLECTION AND ANALYSIS Two review authors extracted data independently. For binary outcomes, we calculated risk ratios (RRs) and 95% confidence intervals (CIs). For continuous data, we estimated mean differences (MDs) between groups and 95% CIs. We employed a random-effects model for analyses. We assessed risk of bias for included studies and created a 'Summary of findings' table using the GRADE approach. Our main outcomes of interest were symptom severity, cognitive function, suicide, quality of life, social functioning, dropout for any reason, serious adverse events, and adverse events that led to discontinuation of treatment. MAIN RESULTS We included three studies (65 participants) comparing MST with ECT. Two studies reported depressive symptoms with the Hamilton Rating Scale for Depression (HAMD). However, in one study, the data were skewed and there was an imbalance in baseline characteristics. Analysis of these two studies showed no clear differences in depressive symptoms between treatment groups (MD 0.71, 95% CI -2.23 to 3.65; 2 studies, 40 participants; very low-certainty evidence). Two studies investigated multiple domains of cognitive function. However most of the outcomes were not measured by validated neuropsychological tests, and many of the data suffered from unbalanced baseline and skewed distribution. Analysis of immediate memory performance measured by the Wechsler Memory Scale showed no clear differences between treatment groups (MD 0.40, 95% CI -4.16 to 4.96; 1 study, 20 participants; very low-certainty evidence). Analysis of delayed memory performance measured by the Wechsler Memory Scale also showed no clear differences between treatment groups (MD 2.57, 95% CI -2.39 to 7.53; 1 study, 20 participants; very low-certainty evidence). Only one study reported quality of life, but the data were skewed and baseline data were unbalanced across groups. Analysis of quality of life showed no clear differences between treatment groups (MD 14.86, 95% CI -42.26 to 71.98; 1 study, 20 participants; very low-certainty evidence). Only one study reported dropout and adverse events that led to discontinuation of treatment. Analysis of reported data showed no clear differences between treatment groups for this outcome (RR 1.38, 95% CI 0.28 to 6.91; 1 study, 25 participants; very low-certainty evidence). Adverse events occurred in only two participants who received ECT (worsening of preexisting coronary heart disease and a cognitive adverse effect). None of the included studies reported outcomes on suicide and social functioning. No RCTs comparing MST with other treatments were identified. AUTHORS' CONCLUSIONS Evidence regarding effects of MST on patients with TRD is currently insufficient. Our analyses of available data did not reveal clearly different effects between MST and ECT. We are uncertain about these findings because of risk of bias and imprecision of estimates. Large, long, well-designed, and well-reported trials are needed to further examine the effects of MST.
Collapse
Affiliation(s)
- Jiangling Jiang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Caidi Zhang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chunbo Li
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhimin Chen
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinyi Cao
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongyan Wang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Li
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jijun Wang
- Department of EEG Source Imaging, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
16
|
Shao X, Yang Y, Tan Z, Ding Y, Luo E, Jing D, Cai J. Amelioration of bone fragility by pulsed electromagnetic fields in type 2 diabetic KK-Ay mice involving Wnt/β-catenin signaling. Am J Physiol Endocrinol Metab 2021; 320:E951-E966. [PMID: 33719588 DOI: 10.1152/ajpendo.00655.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Type 2 diabetes mellitus (T2DM) results in compromised bone microstructure and quality, and subsequently increased risks of fractures. However, it still lacks safe and effective approaches resisting T2DM bone fragility. Pulsed electromagnetic fields (PEMFs) exposure has proven to be effective in accelerating fracture healing and attenuating osteopenia/osteoporosis induced by estrogen deficiency. Nevertheless, whether and how PEMFs resist T2DM-associated bone deterioration remain not fully identified. The KK-Ay mouse was used as the T2DM model. We found that PEMF stimulation with 2 h/day for 8 wk remarkably improved trabecular bone microarchitecture, decreased cortical bone porosity, and promoted trabecular and cortical bone material properties in KK-Ay mice. PEMF stimulated bone formation in KK-Ay mice, as evidenced by increased serum levels of bone formation (osteocalcin and P1NP), enhanced bone formation rate, and increased osteoblast number. PEMF significantly suppressed osteocytic apoptosis and sclerostin expression in KK-Ay mice. PEMF exerted beneficial effects on osteoblast- and osteocyte-related gene expression in the skeleton of KK-Ay mice. Nevertheless, PEMF exerted no effect on serum biomarkers of bone resorption (TRAcP5b and CTX-1), osteoclast number, or osteoclast-specific gene expression (TRAP and cathepsin K). PEMF upregulated gene expression of canonical Wnt ligands (including Wnt1, Wnt3a, and Wnt10b), but not noncanonical Wnt5a. PEMF also upregulated skeletal protein expression of downstream p-GSK-3β and β-catenin in KK-Ay mice. Moreover, PEMF-induced improvement in bone microstructure, mechanical strength, and bone formation in KK-Ay mice was abolished after intragastric administration with the Wnt antagonist ETC-159. Together, our results suggest that PEMF can improve bone microarchitecture and quality by enhancing the biological activities of osteoblasts and osteocytes, which are associated with the activation of the Wnt/β-catenin signaling pathway. PEMF might become an effective countermeasure against T2DM-induced bone deterioration.NEW & NOTEWORTHY PEMF improved trabecular bone microarchitecture and suppressed cortical bone porosity in T2DM KK-Ay mice. It attenuated T2DM-induced detrimental consequence on trabecular and cortical bone material properties. PEMF resisted bone deterioration in KK-Ay mice by enhancing osteoblast-mediated bone formation. PEMF also significantly suppressed osteocytic apoptosis and sclerostin expression in KK-Ay mice. The therapeutic potential of PEMF on T2DM-induced bone deterioration was associated with the activation of Wnt/ß-catenin signaling.
Collapse
MESH Headings
- Animals
- Bone Diseases, Metabolic/etiology
- Bone Diseases, Metabolic/genetics
- Bone Diseases, Metabolic/metabolism
- Bone Diseases, Metabolic/therapy
- Bone and Bones/metabolism
- Bone and Bones/radiation effects
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/therapy
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/therapy
- Electromagnetic Fields
- Glucose/metabolism
- Magnetic Field Therapy/methods
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Osteogenesis/physiology
- Osteogenesis/radiation effects
- Osteoporosis/etiology
- Osteoporosis/genetics
- Osteoporosis/metabolism
- Osteoporosis/therapy
- Wnt Signaling Pathway/radiation effects
- beta Catenin/metabolism
Collapse
Affiliation(s)
- Xi Shao
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Yongqing Yang
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Zhifen Tan
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
- College of Medical technology, Shaanxi University of Chinese Medicine, Xianyang, People's Republic of China
| | - Yuanjun Ding
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Erping Luo
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Da Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - Jing Cai
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
- College of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang, People's Republic of China
| |
Collapse
|
17
|
Silantyeva E, Zarkovic D, Astafeva E, Soldatskaia R, Orazov M, Belkovskaya M, Kurtser M. A Comparative Study on the Effects of High-Intensity Focused Electromagnetic Technology and Electrostimulation for the Treatment of Pelvic Floor Muscles and Urinary Incontinence in Parous Women: Analysis of Posttreatment Data. Female Pelvic Med Reconstr Surg 2021; 27:269-273. [PMID: 31860567 PMCID: PMC8016513 DOI: 10.1097/spv.0000000000000807] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Pelvic floor muscles (PFMs) weakening and urinary incontinence (UI) represent health issues that have a negative impact on daily life. This study compares the immediate efficiency of high-intensity focused electromagnetic (HIFEM) therapy and electrostimulation for the treatment of weakened PFMs, accompanied by the UI. METHODS Ninety-five parous women were considered for the study. Symptomatic patients received either HIFEM or electrostimulation treatment. Treated patients completed 10 therapies scheduled 2 to 3 times per week (HIFEM) or every other day (electrostimulation). Patients underwent examination by 3-dimensional transperienal ultrasound at the baseline and posttreatments. Levator-urethra gap, anteroposterior diameter, laterolateral diameter of levator hiatus, and hiatal area were measured. In addition, Pelvic Floor Disability Index 20 questionnaire and subjective evaluation of patient's intimate health were assessed. RESULTS Enrolled patients were divided into group I (n = 50, HIFEM), group II (n = 25, electrostimulation), and group III (n = 20, control) according the indication and treatment modality. Three-dimensional ultrasounds showed positive changes in dynamics of the pelvic floor posttreatment (decreased anteroposterior diameter, laterolateral diameter, and hiatal area). However, the significant (P < 0.05) changes of pelvic floor integrity were observed only in group I. In addition, group I achieved greater level of improvement in Pelvic Floor Disability Index 20 questionnaire compared with group II (52% and 18% respectively; P < 0.001). Substantially fewer patients in group I reported urine leakage after treatments. CONCLUSIONS Posttreatment results suggest that HIFEM technology is suitable for treatment of PFMs weakening and showed to be more effective when compared with electrostimulation in short-term. Therefore, we recommend HIFEM as treatment option for weakened PFMs and UI.
Collapse
Affiliation(s)
| | - Dragana Zarkovic
- Charles University, Faculty of Physical Education and Sport, Department of Anatomy and Biomechanics, Prague, Czech Republic
| | | | | | - Mekan Orazov
- RUDN University, Medical Faculty, Moscow, Russia
| | | | - Mark Kurtser
- From the Hospital Lapino MD Medical Group, Moscow, Russia
| |
Collapse
|
18
|
Bhattacharyya S, Dinda A, Vishnubhatla S, Anwar MF, Jain S. A combinatorial approach to modulate microenvironment toward regeneration and repair after spinal cord injury in rats. Neurosci Lett 2021; 741:135500. [PMID: 33197520 DOI: 10.1016/j.neulet.2020.135500] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 10/21/2020] [Accepted: 11/09/2020] [Indexed: 12/26/2022]
Abstract
Traumatic spinal cord injury (SCI) is a devastating condition of CNS which leads to loss of sensory as well as motor functions. Secondary damage after SCI initiates cascade of events that creates an inhibitory milieu for axonal growth and repair. Combinatorial therapies are the hope to attenuate secondary injury progression and make the microenvironment growth and repair friendly for the neurons. We fabricated gelatin- genipin hydrogel system which was impregnated with IONPs and injected at the lesion site in a clinically relevant contusion rat model of SCI. 24 h later, the rats were exposed to magnetic fields (17.96 μT, 50 Hz uniform EMF) for 2 h/day for 5 weeks. A significant (P < 0.001) improvement in Basso, Beattie and Bresnahan (BBB) locomotor score, amplitude and threshold of spinally mediated reflexes and motor and somatosensory evoked potentials (MEP & SSEP) was observed following IONPs implantation and EMF exposure. Moreover, retrograde tracing showed a higher level of neuronal connectivity and survival after the intervention. There was also a reduction in activated microglia and lesion volume which attenuate secondary damage as evident by reduction in the scaring following intervention for 5 weeks. Moreover, we observed increase in the neuronal growth cone marker, GAP-43, growth promoting neurotrophins (GDNF, BDNF & NT-3) and reduction in the inhibitory molecule (Nogo-A) after this combinatorial therapy. We obsrvered that a significant improvement in behavioral, electrophysiological and morphological parameters was due to an alteration in neurotrophin levels, reduction in activated microglia and increase in GAP-43 expression after the combinatorial therapy. We propose that implantation of IONPs embedded gelatin-genipin hydrogel system along with MF exposure modulated the microenvironment, making it conducive for neural repair and regeneration.
Collapse
Affiliation(s)
| | - Amit Dinda
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Suman Jain
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, 110029, India.
| |
Collapse
|
19
|
Shao X, Yan Z, Wang D, Yang Y, Ding Y, Luo E, Jing D, Cai J. Pulsed Electromagnetic Fields Ameliorate Skeletal Deterioration in Bone Mass, Microarchitecture, and Strength by Enhancing Canonical Wnt Signaling-Mediated Bone Formation in Rats with Spinal Cord Injury. J Neurotrauma 2021; 38:765-776. [PMID: 33108939 DOI: 10.1089/neu.2020.7296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Spinal cord injury (SCI) leads to extensive bone loss and high incidence of low-energy fractures. Pulsed electromagnetic fields (PEMF) treatment, as a non-invasive biophysical technique, has proven to be efficient in promoting osteogenesis. The potential osteoprotective effect and mechanism of PEMF on SCI-related bone deterioration, however, remain unknown. The spinal cord of rats was transected at vertebral level T12 to induce SCI. Thirty rats were assigned to the control, SCI, and SCI+PEMF groups (n = 10). One week after surgery, the SCI+PEMF rats were subjected to PEMF (2.0 mT, 15 Hz, 2 h/day) for eight weeks. Micro-computed tomography results showed that PEMF significantly ameliorated trabecular and cortical bone microarchitecture deterioration induced by SCI. Three-point bending and nanoindentation assays revealed that PEMF significantly improved bone mechanical properties in SCI rats. Serum biomarker and bone histomorphometric analyses demonstrated that PEMF enhanced bone formation, as evidenced by significant increase in serum osteocalcin and P1NP, mineral apposition rate, and osteoblast number on bone surface. The PEMF had no impact, however, on serum bone-resorbing cytokines (TRACP 5b and CTX-1) or osteoclast number on bone surface. The PEMF also attenuated SCI-induced negative changes in osteocyte morphology and osteocyte survival. Moreover, PEMF significantly increased skeletal expression of canonical Wnt ligands (Wnt1 and Wnt10b) and stimulated their downstream p-GSK3β and β-catenin expression in SCI rats. This study demonstrates that PEMF can mitigate the detrimental consequence of SCI on bone quantity/quality, which might be associated with canonical Wnt signaling-mediated bone formation, and reveals that PEMF may be a promising biophysical approach for resisting osteopenia/osteoporosis after SCI in clinics.
Collapse
Affiliation(s)
- Xi Shao
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Zedong Yan
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Dan Wang
- Lab of Tissue Engineering, Faculty of Life Sciences, Northwest University, Xi'an, China
| | - Yongqing Yang
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Yuanjun Ding
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Erping Luo
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Da Jing
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Jing Cai
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
- College of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang, China
| |
Collapse
|
20
|
Yuan J, Chen Y, Yu P, Luo F, Gao Y, Chen J, Wang P, Wang Y, Zhao Y, Lei Y. Effect of magnetic stimulation of Shenmen point on cognitive function of chronic insomnia: A randomized controlled clinical trial. Medicine (Baltimore) 2020; 99:e23807. [PMID: 33371157 PMCID: PMC7748301 DOI: 10.1097/md.0000000000023807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 11/19/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Chronic insomnia (CI) can lead to cognitive dysfunction and bring great pain to patients' life. There is no effective intervention for cognitive dysfunction caused by CI. Shenmen (HT7) is the first choice for insomnia treatment. However, the effect and mechanism of this acupoint on cognitive function after insomnia is not clear. Therefore, the purpose of this study is to explore whether magnetic stimulation of HT7 can improve cognitive impairment of CI by regulating prefrontal lobe and its mechanism. METHODS/DESIGN This is a randomized controlled clinical trial. Seventy-two subjects aged 18 to 65 years old with primary insomnia and more than 3 months were randomly divided into 2 groups according to the ratio of 1:1, and 36 healthy controls were included. The control group was given sleep hygiene and cognitive therapy in behavioral cognitive therapy technology, while the experimental group was given the behavioral cognitive therapy technology intervention and magnetic stimulation of HT7 acupoint for 30 times (2 times / d, 5 times / wk for 20 days), while the healthy control group had no intervention measures. Before treatment and 20 days after treatment, we evaluated the working memory (1-back test), episodic memory (Complex Figure Test), and problem-solving ability (Hanoi tower test) processed by prefrontal lobe to explore the effect of magnetic stimulation on cognitive function of CI and its possible mechanism. At the same time, insomnia severity index was used to evaluate sleep state, Becker depression scale was used to evaluate depression, and Beck anxiety scale was used to evaluate anxiety. Chi-squared test or rank sum test was used to collect the data of patients. If P value is less than or equal to .05, the difference will be considered statistically significant. CONCLUSION This study explored the effect and mechanism of magnetic stimulation of Shenmen (HT7) on cognitive function of CI, and confirmed that magnetic stimulation of HT7 can be used as an alternative therapy to improve cognitive impairment of CI. TRIAL REGISTRATION NUMBER ChiCTR2000034280.
Collapse
Affiliation(s)
- Jie Yuan
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| | - Yimeng Chen
- Adult rehabilitation Department, the First People's Hospital of Yinchuan, Yinchuan
| | - Penglong Yu
- Hospital of Chengdu University of Traditional Chinese Medicine
| | - Fan Luo
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| | - Yongxiang Gao
- International Education College, Chengdu University of Traditional Chinese Medicine, Jiuniu District, Chengdu, Sichuan, China
| | - Jie Chen
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| | - Pei Wang
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| | - Yuan Wang
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| | - Yuan Zhao
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| | - Yaling Lei
- Department of Encephalopathy, Shaanxi Provincial Hospital of Traditional Chinese Medicine, Xi’an
| |
Collapse
|
21
|
Reis Menezes J, Bernhart Carra R, Aline Nunes G, da Silva Simões J, Jacobsen Teixeira M, Paiva Duarte K, Ciampi de Andrade D, Barbosa ER, Antônio Marcolin M, Cury RG. Transcutaneous magnetic spinal cord stimulation for freezing of gait in Parkinson's disease. J Clin Neurosci 2020; 81:306-309. [PMID: 33222935 DOI: 10.1016/j.jocn.2020.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 11/18/2022]
Abstract
Dopaminergic drugs partially alleviate gait problems in Parkinson's disease, but the effects are not sustained in the long-term. Particularly, the freezing of gait directly impacts patients' quality of life. Experimental epidural spinal cord stimulation (SCS) studies have suggested positive effects on locomotion among PD patients, but the effects of non-invasive stimulation have never been explored. Here, we investigated in a prospective, open-label, pilot study the efficacy and safety of non-invasive magnetic stimulation of the spinal cord in five patients with PD who experienced gait problems, including freezing of gait. A trial of transcutaneous magnetic SCS was performed at the level of the fifth thoracic vertebra. The primary outcome was the change in freezing of gait 7 days after stimulation. Secondary outcome measures included changes in gait speed and UPDRS part III. After non-invasive spinal cord stimulation, patients experienced a 22% improvement in freezing of gait (p = 0.040) and 17.4% improvement in the UPDRS part III (p = 0.042). Timed up and go times improved by 48.2%, although this did not reach statistical significance (p = 0.06). Patients' global impression of change was 'much improved' for four patients. Improvement in gait after stimulation was reversible, since it returned to baseline scores 4 weeks after stimulation. No severe side effects were recorded. This pilot study suggests that transcutaneous magnetic spinal cord stimulation is feasible and can potentially improve gait problems in PD, without severe adverse effects. Large scale phase II trials are needed to test this hypothesis.
Collapse
Affiliation(s)
- Janaína Reis Menezes
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Rafael Bernhart Carra
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Glaucia Aline Nunes
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Juliana da Silva Simões
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Manoel Jacobsen Teixeira
- Functional Neurosurgery Division, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Kleber Paiva Duarte
- Functional Neurosurgery Division, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Daniel Ciampi de Andrade
- Service of Interdisciplinary Neuromodulation (SIN), Laboratory of Neurosciences (LIM-27), Department and Institute of Psychiatry, University of São Paulo, São Paulo, Brazil
| | - Egberto Reis Barbosa
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Marco Antônio Marcolin
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Rubens Gisbert Cury
- Movement Disorders Center, Department of Neurology, School of Medicine, University of São Paulo, São Paulo, Brazil.
| |
Collapse
|
22
|
Chalfouh C, Guillou C, Hardouin J, Delarue Q, Li X, Duclos C, Schapman D, Marie JP, Cosette P, Guérout N. The Regenerative Effect of Trans-spinal Magnetic Stimulation After Spinal Cord Injury: Mechanisms and Pathways Underlying the Effect. Neurotherapeutics 2020; 17:2069-2088. [PMID: 32856173 PMCID: PMC7851265 DOI: 10.1007/s13311-020-00915-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Spinal cord injury (SCI) leads to a loss of sensitive and motor functions. Currently, there is no therapeutic intervention offering a complete recovery. Here, we report that repetitive trans-spinal magnetic stimulation (rTSMS) can be a noninvasive SCI treatment that enhances tissue repair and functional recovery. Several techniques including immunohistochemical, behavioral, cells cultures, and proteomics have been performed. Moreover, different lesion paradigms, such as acute and chronic phase following SCI in wild-type and transgenic animals at different ages (juvenile, adult, and aged), have been used. We demonstrate that rTSMS modulates the lesion scar by decreasing fibrosis and inflammation and increases proliferation of spinal cord stem cells. Our results demonstrate also that rTSMS decreases demyelination, which contributes to axonal regrowth, neuronal survival, and locomotor recovery after SCI. This research provides evidence that rTSMS induces therapeutic effects in a preclinical rodent model and suggests possible translation to clinical application in humans.
Collapse
Affiliation(s)
- C Chalfouh
- Normandie Univ, UNIROUEN, EA3830 GRHV, 76000, Rouen, France.
- Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France.
| | - C Guillou
- PISSARO Proteomic Facility, Normandie Univ, UNIROUEN, 76821, Mont-Saint-Aignan, France
- Institute for Research and Innovation in Biomedicine (IRIB), Mont-Saint-Aignan, France
| | - J Hardouin
- PISSARO Proteomic Facility, Normandie Univ, UNIROUEN, 76821, Mont-Saint-Aignan, France
- Institute for Research and Innovation in Biomedicine (IRIB), Mont-Saint-Aignan, France
| | - Q Delarue
- Normandie Univ, UNIROUEN, EA3830 GRHV, 76000, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France
| | - X Li
- Department of Neurobiology, Care sciences and Society, BioClinicum, Karolinska Institutet, 17164, Stockholm, Sweden
| | - C Duclos
- Normandie Univ, UNIROUEN, EA3830 GRHV, 76000, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France
| | - D Schapman
- Institute for Research and Innovation in Biomedicine (IRIB), Mont-Saint-Aignan, France
- Normandie Univ, UNIROUEN, SFR IRIB, Plateau PRIMACEN, F-76821, Mont-Saint-Aignan, France
| | - J-P Marie
- Normandie Univ, UNIROUEN, EA3830 GRHV, 76000, Rouen, France
- Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France
| | - P Cosette
- PISSARO Proteomic Facility, Normandie Univ, UNIROUEN, 76821, Mont-Saint-Aignan, France
- Institute for Research and Innovation in Biomedicine (IRIB), Mont-Saint-Aignan, France
| | - N Guérout
- Normandie Univ, UNIROUEN, EA3830 GRHV, 76000, Rouen, France.
- Institute for Research and Innovation in Biomedicine (IRIB), 76000, Rouen, France.
| |
Collapse
|
23
|
Tang VM, Blumberger DM, Dimitrova J, Throop A, McClintock SM, Voineskos D, Downar J, Knyahnytska Y, Mulsant BH, Fitzgerald PB, Daskalakis ZJ. Magnetic seizure therapy is efficacious and well tolerated for treatment-resistant bipolar depression: an open-label clinical trial. J Psychiatry Neurosci 2020; 45:313-321. [PMID: 31922372 PMCID: PMC7850154 DOI: 10.1503/jpn.190098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Treatment-resistant bipolar depression can be treated effectively using electroconvulsive therapy, but its use is limited because of stigma and cognitive adverse effects. Magnetic seizure therapy is a new convulsive therapy with promising early evidence of antidepressant effects and minimal cognitive adverse effects. However, there are no clinical trials of the efficacy and safety of magnetic seizure therapy for treatment-resistant bipolar depression. METHODS Participants with treatment-resistant bipolar depression were treated with magnetic seizure therapy for up to 24 sessions or until remission. Magnetic seizure therapy was applied over the prefrontal cortex at high (100 Hz; n = 8), medium (50 or 60 Hz; n = 9) or low (25 Hz; n = 3) frequency, or over the vertex at high frequency (n = 6). The primary outcome measure was the 24-item Hamilton Rating Scale for Depression. Participants completed a comprehensive battery of neurocognitive tests. RESULTS Twenty-six participants completed a minimally adequate trial of magnetic seizure therapy (i.e., ≥ 8 sessions), and 20 completed full treatment per protocol. Participants showed a significant reduction in scores on the Hamilton Rating Scale for Depression. Adequate trial completers had a remission rate of 23.1% and a response rate of 38.5%. Per-protocol completers had a remission rate of 30% and a response rate of 50%. Almost all cognitive measures remained stable, except for significantly worsened recall consistency on the autobiographical memory inventory. LIMITATIONS The open-label study design and modest sample size did not allow for comparisons between stimulation parameters. CONCLUSION In treatment-resistant bipolar depression, magnetic seizure therapy produced significant improvements in depression symptoms with minimal effects on cognitive performance. These promising results warrant further investigation with larger randomized clinical trials comparing magnetic seizure therapy to electroconvulsive therapy. CLINICAL TRIAL REGISTRATION NCT01596608; clinicaltrials.gov
Collapse
Affiliation(s)
- Victor M. Tang
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Daniel M. Blumberger
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Julia Dimitrova
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Alanah Throop
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Shawn M. McClintock
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Daphne Voineskos
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Jonathan Downar
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Yuliya Knyahnytska
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Benoit H. Mulsant
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Paul B. Fitzgerald
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| | - Zafiris J. Daskalakis
- From the Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Tang, Blumberger, Dimitrova, Throop, Voineskos, Knyahnytska, Mulsant, Daskalakis); the Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas Southwestern Medical Center, and Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC (McClintock); the Centre for Mental Health and Krembil Research Institute, University Health Network, Department of Psychiatry, University of Toronto, Toronto, Ont., Canada (Downar); and the Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash Alfred Psychiatry Research Centre, the Alfred and Monash University Central Clinical School, Melbourne, Australia (Fitzgerald)
| |
Collapse
|
24
|
Tan AC, Ashley DM, López GY, Malinzak M, Friedman HS, Khasraw M. Management of glioblastoma: State of the art and future directions. CA Cancer J Clin 2020; 70:299-312. [PMID: 32478924 DOI: 10.3322/caac.21613] [Citation(s) in RCA: 838] [Impact Index Per Article: 209.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/05/2020] [Accepted: 04/17/2020] [Indexed: 12/13/2022] Open
Abstract
Glioblastoma is the most common malignant primary brain tumor. Overall, the prognosis for patients with this disease is poor, with a median survival of <2 years. There is a slight predominance in males, and incidence increases with age. The standard approach to therapy in the newly diagnosed setting includes surgery followed by concurrent radiotherapy with temozolomide and further adjuvant temozolomide. Tumor-treating fields, delivering low-intensity alternating electric fields, can also be given concurrently with adjuvant temozolomide. At recurrence, there is no standard of care; however, surgery, radiotherapy, and systemic therapy with chemotherapy or bevacizumab are all potential options, depending on the patient's circumstances. Supportive and palliative care remain important considerations throughout the disease course in the multimodality approach to management. The recently revised classification of glioblastoma based on molecular profiling, notably isocitrate dehydrogenase (IDH) mutation status, is a result of enhanced understanding of the underlying pathogenesis of disease. There is a clear need for better therapeutic options, and there have been substantial efforts exploring immunotherapy and precision oncology approaches. In contrast to other solid tumors, however, biological factors, such as the blood-brain barrier and the unique tumor and immune microenvironment, represent significant challenges in the development of novel therapies. Innovative clinical trial designs with biomarker-enrichment strategies are needed to ultimately improve the outcome of patients with glioblastoma.
Collapse
Affiliation(s)
- Aaron C Tan
- Division of Medical Oncology, National Cancer Center Singapore, Singapore
| | - David M Ashley
- The Preston Robert Tisch Brain Tumor Center, Duke University, Durham, North Carolina, USA
| | - Giselle Y López
- The Preston Robert Tisch Brain Tumor Center, Duke University, Durham, North Carolina, USA
- Department of Pathology, Duke University, Durham, North Carolina, USA
| | - Michael Malinzak
- The Preston Robert Tisch Brain Tumor Center, Duke University, Durham, North Carolina, USA
- Department of Radiology, Duke University, Durham, North Carolina, USA
| | - Henry S Friedman
- The Preston Robert Tisch Brain Tumor Center, Duke University, Durham, North Carolina, USA
| | - Mustafa Khasraw
- The Preston Robert Tisch Brain Tumor Center, Duke University, Durham, North Carolina, USA
| |
Collapse
|
25
|
Kinoshita S, Ikeda K, Yasuno S, Takahashi S, Yamada N, Okuyama Y, Sasaki N, Hada T, Kuriyama C, Suzuki S, Hama M, Ozaki N, Watanabe S, Abo M. Dose-response of rPMS for upper Limb hemiparesis after stroke. Medicine (Baltimore) 2020; 99:e20752. [PMID: 32541528 PMCID: PMC7302622 DOI: 10.1097/md.0000000000020752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Repetitive peripheral magnetic stimulation (rPMS) therapy is an innovative and minimally invasive neurorehabilitative technique and has been shown to facilitate neural plasticity. However, there is at present no research that clarifies the dose-response of rPMS therapy on the recovery of upper limb hemiparesis after stroke. This trial aims to clarify the dose-response of rPMS therapy combined with intensive occupational therapy (OT) for chronic stroke patients with moderate to severe upper limb hemiparesis. METHODS AND ANALYSIS This multicenter, prospective, assessor-blinded, randomized controlled study with 3 parallel groups will be conducted from January 20, 2020 to September 30, 2022. Fifty patients will be randomly assigned in a ratio of 1:2:2 to the control group, the group receiving daily 2400 pulses of rPMS, or the group receiving daily 4800 pulses of rPMS, respectively. From the day after admission (Day 1), rPMS therapy and intensive OT will be initiated. The primary outcome is the change in the motor function of the affected upper extremity (Fugl-Meyer Assessment) between the time of admission (Day 0) and the day after 2 weeks of treatment (Day 14). Secondary outcomes will include the changes in spasticity, active range of motion, motor evoked potential, and activity of daily living. ETHICS AND DISSEMINATION The study was approved by the Jikei University Certified Review Board for all institutions (reference number: JKI19-020). Results of the primary and secondary outcomes will be published in a peer-reviewed journal and presented at international congresses. The results will also be disseminated to patients. TRIAL REGISTRATION NUMBER jRCTs032190191.
Collapse
Affiliation(s)
| | | | - Shinji Yasuno
- Clinical Research Support Center, The Jikei University School of Medicine, Minato-Ku, Tokyo, Japan
| | - Sho Takahashi
- Clinical Research Support Center, The Jikei University School of Medicine, Minato-Ku, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Kang MK, Kim TJ, Kim YJ, Kang L, Kim J, Lee N, Hyeon T, Lim MS, Mo HJ, Shin JH, Ko SB, Yoon BW. Targeted Delivery of Iron Oxide Nanoparticle-Loaded Human Embryonic Stem Cell-Derived Spherical Neural Masses for Treating Intracerebral Hemorrhage. Int J Mol Sci 2020; 21:ijms21103658. [PMID: 32455909 PMCID: PMC7279437 DOI: 10.3390/ijms21103658] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/13/2020] [Accepted: 05/20/2020] [Indexed: 12/16/2022] Open
Abstract
This study evaluated the potential of iron oxide nanoparticle-loaded human embryonic stem cell (ESC)-derived spherical neural masses (SNMs) to improve the transportation of stem cells to the brain, ameliorate brain damage from intracerebral hemorrhage (ICH), and recover the functional status after ICH under an external magnetic field of a magnet attached to a helmet. At 24 h after induction of ICH, rats were randomly separated into three experimental groups: ICH with injection of phosphate-buffered saline (PBS group), ICH with intravenous injection of magnetosome-like ferrimagnetic iron oxide nanocubes (FION)-labeled SNMs (SNMs* group), and ICH with intravenous injection of FION-labeled SNMs followed by three days of external magnetic field exposure for targeted delivery by a magnet-embedded helmet (SNMs*+Helmet group). On day 3 after ICH induction, an increased Prussian blue-stained area and decreased swelling volume were observed in the SNMs*+Helmet group compared with that of the other groups. A significantly decreased recruitment of macrophages and neutrophils and a downregulation of pro-inflammatory cytokines followed by improved neurological function three days after ICH were observed in the SNMs*+Helmet group. Hemispheric atrophy at six weeks after ICH was significantly decreased in the SNMs*+Helmet group compared with that of the PBS group. In conclusion, we have developed a targeted delivery system using FION tagged to stem cells and a magnet-embedded helmet. The targeted delivery of SNMs might have the potential for developing novel therapeutic strategies for ICH.
Collapse
Affiliation(s)
- Min Kyoung Kang
- Department of Neurology, Seoul National University Hospital, Seoul 03080, Korea; (M.K.K.); (T.J.K.); (J.H.S.); (S.-B.K.)
- Department of Neurology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Tae Jung Kim
- Department of Neurology, Seoul National University Hospital, Seoul 03080, Korea; (M.K.K.); (T.J.K.); (J.H.S.); (S.-B.K.)
- Department of Neurology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Young-Ju Kim
- Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; (Y.-J.K.); (L.K.)
| | - Lamie Kang
- Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; (Y.-J.K.); (L.K.)
| | - Jonghoon Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Korea; (J.K.); (T.H.)
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea
| | - Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Korea;
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Korea; (J.K.); (T.H.)
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea
| | - Mi-sun Lim
- Research and Development Center, Jeil Pharmaceutical Co. Ltd., Yongin-si, Gyeonggi-do 17172, Korea;
- Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University, Seoul 08826, Korea
| | - Hee Jung Mo
- Department of Neurology, Hallym University Dongtan Sacred Heart Hospital, Gyeonggi-do 14068, Korea;
| | - Jung Hwan Shin
- Department of Neurology, Seoul National University Hospital, Seoul 03080, Korea; (M.K.K.); (T.J.K.); (J.H.S.); (S.-B.K.)
| | - Sang-Bae Ko
- Department of Neurology, Seoul National University Hospital, Seoul 03080, Korea; (M.K.K.); (T.J.K.); (J.H.S.); (S.-B.K.)
- Department of Neurology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Byung-Woo Yoon
- Department of Neurology, Seoul National University Hospital, Seoul 03080, Korea; (M.K.K.); (T.J.K.); (J.H.S.); (S.-B.K.)
- Department of Neurology, Seoul National University College of Medicine, Seoul 03080, Korea
- Correspondence: ; Tel.: +82-2-2072-2875; Fax: +82-2-3673-1990
| |
Collapse
|
27
|
Abstract
Arms and calves have long been a subject of interest in aesthetic medicine. Current surgical and non-invasive procedures focus on sagging skin and fat deposits without targeting the muscles. The aim of this study is to investigate the feasibility of high-intensity focused electromagnetic (HIFEM) technology for arm and calf toning through simultaneous fat reduction and muscle strengthening. In this case study, two subjects received four 20-minute HIFEM treatments of biceps, triceps, and calves, with the outcomes assessed by MRI. The analysis of MRI images showed an average increase in all three muscle groups, biceps muscle mass 17.1%, triceps muscle mass 10.2%, and gastrocnemius muscle mass increased by 14.6%. In addition, the arm fat thickness was decreased by 12.8% on average and the calf fat thickness decreased by 9.9%. The results suggest that HIFEM technology is a feasible modality for both arm and calf toning. However, it will be necessary to continue to validate this outcome in a larger sample size study. J Drugs Dermatol. 2020;19(5): doi:10.36849/JDD.2020.4546.
Collapse
|
28
|
Ye W, Guo H, Yang X, Yang L, He C. Pulsed Electromagnetic Field Versus Whole Body Vibration on Cartilage and Subchondral Trabecular Bone in Mice With Knee Osteoarthritis. Bioelectromagnetics 2020; 41:298-307. [PMID: 32277513 DOI: 10.1002/bem.22263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/17/2020] [Accepted: 03/29/2020] [Indexed: 02/05/2023]
Abstract
Pulsed electromagnetic field (PEMF) and whole body vibration (WBV) interventions are expected to be important strategies for management of osteoarthritis (OA). The aim of the study was to investigate the comparative effectiveness of PEMF versus WBV on cartilage and subchondral trabecular bone in mice with knee OA (KOA) induced by surgical destabilization of the medial meniscus (DMM). Forty 12-week-old male C57/BL mice were randomly divided into four groups (n = 10): Control, OA, PEMF, and WBV. OA was induced (OA, PEMF, and WBV groups) by surgical DMM of right knee joint. Mice in PEMF group received 1 h/day PEMF exposure with 75 Hz, 1.6 mT for 4 weeks, and the WBV group was exposed to WBV for 20 min/day with 5 Hz, 4 mm, 0.3 g peak acceleration for 4 weeks. Micro-computed tomography (micro-CT), histology, and immunohistochemistry analyses were performed to evaluate the changes in cartilage and microstructure of trabecular bone. The bone volume fraction (BV/TV), trabecular thickness (Tb.Th), and trabecular number (Tb.N) increased, and bone surface/bone volume (BS/BV) decreased by micro-CT analysis in PEMF and WBV groups. The Osteoarthritis Research Society International (OARSI) scores in PEMF and WBV groups were significantly lower than in the OA group. Immunohistochemical results showed that PEMF and WBV promoted expressions of Aggrecan, and inhibited expressions of IL-1β, ADAMTS4, and MMP13. Superior results are seen in PEMF group compared with WBV group. Both PEMF and WBV were effective, could delay cartilage degeneration and preserve subchondral trabecular bone microarchitecture, and PEMF was found to be superior to WBV. Bioelectromagnetics. 2020;41:298-307 © 2020 Bioelectromagnetics Society.
Collapse
Affiliation(s)
- Wenwen Ye
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
- School of Rehabilitation Sciences, West China School of Medicine, Sichuan University, Chengdu, People's Republic of China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Hua Guo
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
- School of Rehabilitation Sciences, West China School of Medicine, Sichuan University, Chengdu, People's Republic of China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xiaotian Yang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
- School of Rehabilitation Sciences, West China School of Medicine, Sichuan University, Chengdu, People's Republic of China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Lin Yang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
- School of Rehabilitation Sciences, West China School of Medicine, Sichuan University, Chengdu, People's Republic of China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Chengqi He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People's Republic of China
- School of Rehabilitation Sciences, West China School of Medicine, Sichuan University, Chengdu, People's Republic of China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| |
Collapse
|
29
|
Renner T, Sollmann N, Heinen F, Albers L, Trepte-Freisleder F, Klose B, König H, Krieg SM, Bonfert MV, Landgraf MN. Alleviation of migraine symptoms by application of repetitive peripheral magnetic stimulation to myofascial trigger points of neck and shoulder muscles - A randomized trial. Sci Rep 2020; 10:5954. [PMID: 32249788 PMCID: PMC7136237 DOI: 10.1038/s41598-020-62701-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 01/30/2020] [Indexed: 12/20/2022] Open
Abstract
Migraine is a burdensome disease with an especially high prevalence in women between the age of 15 and 49 years. Non-pharmacological, non-invasive therapeutic methods to control symptoms are increasingly in demand to complement a multimodal intervention approach in migraine. Thirty-seven subjects (age: 25.0 ± 4.1 years; 36 females) diagnosed with high-frequency episodic migraine who presented at least one active myofascial trigger point (mTrP) in the trapezius muscles and at least one latent mTrP in the deltoid muscles bilaterally prospectively underwent six sessions of repetitive peripheral magnetic stimulation (rPMS) over two weeks. Patients were randomly assigned to receive rPMS applied to the mTrPs of the trapezius (n = 19) or deltoid muscles (n = 18). Whereas the trapezius muscle is supposed to be part of the trigemino-cervical complex (TCC) and, thus, involved in the pathophysiology of migraine, the deltoid muscle was not expected to interfere with the TCC and was therefore chosen as a control stimulation site. The headache calendar of the German Migraine and Headache Society (DMKG) as well as the Migraine Disability Assessment (MIDAS) questionnaire were used to evaluate stimulation-related effects. Frequency of headache days decreased significantly in both the trapezius and the deltoid group after six sessions of rPMS (trapezius group: p = 0.005; deltoid group: p = 0.003). The MIDAS score decreased significantly from 29 to 13 points (p = 0.0004) in the trapezius and from 31 to 15 points (p = 0.002) in the deltoid group. Thus, rPMS applied to mTrPs of neck and shoulder muscles offers a promising approach to alleviate headache frequency and symptom burden. Future clinical trials are needed to examine more profoundly these effects, preferably using a sham-controlled setting.
Collapse
Affiliation(s)
- Tabea Renner
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| | - Nico Sollmann
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
- TUM-Neuroimaging Center, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
| | - Florian Heinen
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| | - Lucia Albers
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Florian Trepte-Freisleder
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| | - Birgit Klose
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| | - Helene König
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| | - Sandro M Krieg
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Michaela V Bonfert
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| | - Mirjam N Landgraf
- Department of Pediatric Neurology and Developmental Medicine and LMU Center for Children with Medical Complexity, Dr. von Hauner Children's Hospital, LMU - University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
| |
Collapse
|
30
|
Sharifi M, Hasan A, Nanakali NMQ, Salihi A, Qadir FA, Muhammad HA, Shekha MS, Aziz FM, Amen KM, Najafi F, Yousefi-Manesh H, Falahati M. Combined chemo-magnetic field-photothermal breast cancer therapy based on porous magnetite nanospheres. Sci Rep 2020; 10:5925. [PMID: 32245980 PMCID: PMC7125194 DOI: 10.1038/s41598-020-62429-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 03/14/2020] [Indexed: 11/08/2022] Open
Abstract
The efficacy of different modalities of treating breast cancer is inhibited by several limitations such as off-targeted drug distribution, rapid drug clearance, and drug resistance. To overcome these limitations, we developed Lf-Doxo-PMNSs for combined chemo-MF-PTT. The PMNSs were synthesized by hydrothermal method and their physicochemical properties were examined by FE-SEM, TEM, DLS, TGA, XRD investigations. The cytotoxicity of as-synthesized NPs against 4T1 cells was carried out by MTT and flow cytometry assays. Afterwards, the anti-cancer activities of as-synthesized Lf-Doxo-PMNSs on the tumor status, drug distribution and apoptosis mechanism were evaluated. The anti-cancer assays showed that Lf-Doxo-PMNSs significantly suppressed the cancer cell proliferation and tumor weight by prolonging drug availability and potential drug loading in tumor cells; whereas they showed a minimum cytotoxicity against non-cancerous cells. Likewise, combined chemo-MF-PTT using Lf-Doxo-PMNSs displayed the highest anti-cancer activity followed by combined chemo-PTT and combined chemo-MF therapy based on altering the apoptosis mechanism. Therefore, these results showed that combined chemo-MF-PTT based on Lf-Doxo-PMNSs can be used as a promising therapeutic platform with potential targeted drug delivery and high loading capacity features as well as reducing cancer drug resistance.
Collapse
Affiliation(s)
- Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Anwarul Hasan
- Biomedical Research Center, Qatar University, Doha, 2713, Qatar.
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, 2713, Qatar.
| | - Nadir Mustafa Qadir Nanakali
- Department of Biology, College of Science, Cihan University-Erbil, Kurdistan Region, Iraq
- Department of Biology, College of Education, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Fikry Ali Qadir
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Hawzheen A Muhammad
- Department of Microbiology, College of Medicine, University of Sulaimani, Sulaimani, Kurdistan region, Iraq
| | - Mudhir Sabir Shekha
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Karwan M Amen
- Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
- College of Nursing, Hawler Medical University, Erbil, Iraq
| | - Farrokh Najafi
- Department of Biomaterial engineering, University of Amir-Kabir, Tehran, Iran
| | - Hasan Yousefi-Manesh
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| |
Collapse
|
31
|
Aamir A, Girach A, Sarrigiannis PG, Hadjivassiliou M, Paladini A, Varrassi G, Zis P. Repetitive Magnetic Stimulation for the Management of Peripheral Neuropathic Pain: A Systematic Review. Adv Ther 2020; 37:998-1012. [PMID: 31989485 DOI: 10.1007/s12325-020-01231-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Repetitive magnetic stimulation (rMS) is a safe and well-tolerated intervention. Transcranial magnetic stimulation (TMS) is used for the treatment of depression and for the treatment and prevention of migraine. Over the last few years, several reports and randomised controlled studies of the use of rMS for the treatment of pain have been published. The aim of this systematic review was to identify the available literature regarding the use of rMS in the treatment of peripheral neuropathic pain. METHODS After a systematic Medline search we identified 12 papers eligible to be included in this review. RESULTS The majority of the studies were on patients with phantom limb pain, followed by radiculopathy, plexopathy, post-traumatic pain and peripheral neuropathy. The treatment protocols vary significantly from study to study and, therefore, pooling the results together is currently difficult. However, rMS has a definite immediate effect in pain relief which, in the majority of studies, is maintained for a few weeks. CONCLUSION rMS seems to be a promising intervention in the treatment of peripheral neuropathic pain. Further research is in the field is needed. Use of neuronavigation might increase the precision of stimulation and subsequently its effectiveness.
Collapse
Affiliation(s)
| | - Ayesha Girach
- Medical School, University of Sheffield, Sheffield, UK
| | | | - Marios Hadjivassiliou
- Academic Directorate of Neurosciences, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | | | | | | |
Collapse
|
32
|
Krzyżańska L, Straburzyńska-Lupa A, Rąglewska P, Romanowski L. Beneficial Effects of Pulsed Electromagnetic Field during Cast Immobilization in Patients with Distal Radius Fracture. Biomed Res Int 2020; 2020:6849352. [PMID: 32185214 PMCID: PMC7060878 DOI: 10.1155/2020/6849352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/16/2020] [Indexed: 11/17/2022]
Abstract
To assess whether pulsed electromagnetic field therapy during cast immobilization of distal radius fractures has beneficial effects on pain and limb function, the study included 52 patients (mean age 60.8 ± 15.0 years) with distal radius fractures treated with cast immobilization. Patients were allocated to a pulsed electromagnetic field group (n = 27) or a control group (n = 25). Pain; forearm and arm circumference; range of motion; disabilities of the arm, shoulder, and hand score; and touch sensation were evaluated on the day of the plaster cast dressing and 3 and 6 weeks after. In comparison to the control group, the pulsed electromagnetic field group reported significant changes after 3 and 6 weeks of treatment: lower pain levels (p=0.0052; p < 0.0001, respectively), greater mobility of upper-limb joints, improvement in exteroceptive sensation, and reduction in disability of the upper limb (disabilities of the arm, shoulder, and hand) (p=0.0003; p < 0.0001, respectively). Our results suggest that early addition of pulsed electromagnetic field treatment, during cast immobilization of distal radius fractures, has beneficial effects on the pain, exteroceptive sensation, range of motion, and daily functioning of patients.
Collapse
Affiliation(s)
- Lucyna Krzyżańska
- Physiotherapy Laboratory, J. Struś Municipal Hospital, Poznań, Poland
| | - Anna Straburzyńska-Lupa
- Department of Physical Therapy and Sports Recovery, Poznań University of Physical Education, Poznań, Poland
| | - Patrycja Rąglewska
- Department of Physical Therapy and Sports Recovery, Poznań University of Physical Education, Poznań, Poland
| | - Leszek Romanowski
- Traumatology, Orthopedics and Hand Surgery Department, Poznań University of Medical Sciences, Poznań, Poland
| |
Collapse
|
33
|
Abstract
BACKGROUND Repetitive peripheral magnetic stimulation (rPMS) is a non-invasive treatment method that can penetrate to deeper structures with painless stimulation to improve motor function in people with physical impairment due to brain or nerve disorders. rPMS for people after stroke has proved to be a feasible approach to improving activities of daily living and functional ability. However, the effectiveness and safety of this intervention for people after stroke currently remain uncertain. This is an update of the review published in 2017. OBJECTIVES To assess the effects of rPMS in improving activities of daily living and functional ability in people after stroke. SEARCH METHODS On 7 January 2019, we searched the Cochrane Stroke Group Trials Register; the Cochrane Central Register of Controlled Trials (CENTRAL), in the Cochrane Library; MEDLINE; Embase; the Cumulative Index to Nursing and Allied Health Literature (CINAHL); PsycINFO; the Allied and Complementary Medicine Database (AMED); Occupational Therapy Systematic Evaluation of Evidence (OTseeker); the Physiotherapy Evidence Database (PEDro); ICHUSHI Web; and six ongoing trial registries. We screened reference lists, and we contacted experts in the field. We placed no restrictions on the language or date of publication when searching electronic databases. SELECTION CRITERIA We included randomised controlled trials (RCTs) conducted to assess the therapeutic effect of rPMS for people after stroke. Comparisons eligible for inclusion were (1) active rPMS only compared with 'sham' rPMS (a very weak form of stimulation or a sound only); (2) active rPMS only compared with no intervention; (3) active rPMS plus rehabilitation compared with sham rPMS plus rehabilitation; and (4) active rPMS plus rehabilitation compared with rehabilitation only. DATA COLLECTION AND ANALYSIS Two review authors independently assessed studies for inclusion. The same review authors assessed methods and risk of bias, undertook data extraction, and used the GRADE approach to assess the quality of evidence. We contacted trial authors to request unpublished information if necessary. We resolved all disagreements through discussion. MAIN RESULTS We included four trials (three RCTs and one cross-over trial) involving 139 participants. Blinding of participants and physicians was well reported within all trials. We judged the overall risk of bias across trials as low. Only two trials (with 63 and 18 participants, respectively) provided sufficient information to be included in the meta-analysis. We found no clear effect of rPMS on activities of daily living at the end of treatment (mean difference (MD) -3.00, 95% confidence interval (CI) -16.35 to 10.35; P = 0.66; 1 trial; 63 participants; low-quality evidence) and at the end of follow-up (MD -2.00, 95% CI -14.86 to 10.86; P = 0.76; 1 trial; 63 participants; low-quality evidence) when comparing rPMS plus rehabilitation versus sham plus rehabilitation. We found no statistical difference in improvement of upper limb function at the end of treatment (MD 2.00, 95% CI -4.91 to 8.91; P = 0.57; 1 trial; 63 participants; low-quality evidence) and at the end of follow-up (MD 4.00, 95% CI -2.92 to 10.92; P = 0.26; 1 trial; 63 participants; low-quality evidence) when comparing rPMS plus rehabilitation versus sham plus rehabilitation. We observed a significant decrease in spasticity of the elbow at the end of follow-up (MD -0.48, 95% CI -0.93 to -0.03; P = 0.03; 1 trial; 63 participants; low-quality evidence) when comparing rPMS plus rehabilitation versus sham plus rehabilitation. In terms of muscle strength, rPMS treatment was not associated with improved muscle strength of the ankle dorsiflexors at the end of treatment (MD 3.00, 95% CI -2.44 to 8.44; P = 0.28; 1 trial; 18 participants; low-quality evidence) when compared with sham rPMS. No studies provided information on lower limb function or adverse events, including death. Based on the GRADE approach, we judged the quality of evidence related to the primary outcome as low, owing to the small sample size of the studies. AUTHORS' CONCLUSIONS Available trials provided insufficient evidence to permit any conclusions about routine use of rPMS for people after stroke. Additional trials with large sample sizes are needed to provide robust evidence for rPMS after stroke.
Collapse
Affiliation(s)
- Kotomi Sakai
- Setagaya Memorial HospitalDepartment of Rehabilitation MedicineTokyoJapan
- St. Luke's International UniversityGraduate School of Public HealthTokyoJapan
| | - Yuichi Yasufuku
- Kyoto Tachibana UniversityDepartment of Physical Therapy34 Yamada‐cho, Oyake, Yamashina‐kuKyotoJapan607‐8175
| | - Tomohiko Kamo
- Japan University of Health SciencesSchool of Health Sciences2‐555, Hirasuka, Satte‐CitySaitamaJapan340‐0145
| | - Erika Ota
- St. Luke's International UniversityGlobal Health Nursing, Graduate School of Nursing Science10‐1 Akashi‐choChuo‐KuTokyoMSJapan104‐0044
| | - Ryo Momosaki
- Teikyo University School of Medicine University Hospital, MizonokuchiDepartment of Rehabilitation Medicine5‐1‐1 Futako, Takatsu‐ku, KawasakiKanagawaJapan213‐8507
| | | |
Collapse
|
34
|
de Paiva PRV, Casalechi HL, Tomazoni SS, Machado CDSM, Vanin AA, Baroni BM, de Carvalho PDTC, Leal-Junior ECP. Effects of photobiomodulation therapy combined to static magnetic field in strength training and detraining in humans: protocol for a randomised placebo-controlled trial. BMJ Open 2019; 9:e030194. [PMID: 31662370 PMCID: PMC6830659 DOI: 10.1136/bmjopen-2019-030194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 09/25/2019] [Accepted: 10/04/2019] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION In recent years, it has been demonstrated that photobiomodulation therapy (PBMT) using low-level laser therapy and/or light-emitting diode therapy combined to static magnetic field (sMF) has ergogenic effects, improving muscular performance and accelerating postexercise recovery. However, many aspects related to these effects and its clinical applicability remain unknown. Therefore, the aim of this project is to evaluate the ergogenic effects of PBMT/sMF in detraining after a strength-training protocol. METHODS AND ANALYSIS The study will be a randomised, triple-blind, placebo-controlled clinical trial. Healthy male volunteers will be randomly distributed into four experimental groups: PBMT/sMF before training sessions + PBMT/sMF during detraining, PBMT/sMF before training sessions + placebo during detraining, placebo before training sessions + PBMT/sMF during detraining and placebo before training sessions + placebo during detraining. Strength-training sessions will be carried out over 12 weeks, and the detraining period will occur during the 4 weeks after. The muscular strength and the structural properties of quadriceps will be analysed. ETHICS AND DISSEMINATION This study was approved by the Research Ethics Committee of Nove de Julho University. The results from this study will be disseminated through scientific publications in international peer-reviewed journals and presented at national and international scientific meetings. TRIAL REGISTRATION NUMBER NCT03858179.
Collapse
Affiliation(s)
- Paulo Roberto Vicente de Paiva
- Laboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, Sao Paulo, Brazil
| | - Heliodora Leão Casalechi
- Laboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, Sao Paulo, Brazil
| | - Shaiane Silva Tomazoni
- Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de Sao Paulo, Sao Paulo, Brazil
| | - Caroline Dos Santos Monteiro Machado
- Laboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, Sao Paulo, Brazil
| | - Adriane Aver Vanin
- Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de Sao Paulo, Sao Paulo, Brazil
| | - Bruno Manfredini Baroni
- Postgraduate Program in Rehabilitation Sciences, Universidade Federal de Ciencias da Saude de Porto Alegre, Porto Alegre, Brazil
| | - Paulo de Tarso Camillo de Carvalho
- Laboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, Sao Paulo, Brazil
| | - Ernesto Cesar Pinto Leal-Junior
- Laboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, Sao Paulo, Brazil
| |
Collapse
|
35
|
Özmert E, Arslan U. Management of Deep Retinal Capillary Ischemia by Electromagnetic Stimulation and Platelet-Rich Plasma: Preliminary Clinical Results. Adv Ther 2019; 36:2273-2286. [PMID: 31385285 DOI: 10.1007/s12325-019-01040-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Indexed: 12/22/2022]
Abstract
INTRODUCTION To investigate the efficacy of retinal electromagnetic stimulation and sub-tenon autologous platelet-rich plasma in the treatment of deep retinal capillary ischemia. METHODS The study included 28 eyes of 17 patients aged 15-76 years (mean 37.9 years) who had deep retinal capillary ischemia. Patients who had acute-onset paracentral scotoma in the last 1 month were included in the study between January 2018 and January 2019. The diagnosis of deep retinal capillary ischemia was based on clinical history and typical findings of optical coherence tomography angiography. The eyes were divided into three groups: group 1 (n = 7 eyes) received electromagnetic stimulation alone; group 2 (n = 7 eyes) received electromagnetic stimulation and sub-tenon autologous platelet-rich plasma injection; group 3 had no intervention and served as a control group (n = 14 eyes). The patients underwent ten sessions of electromagnetic stimulation in groups 1 and 2. Sub-tenon autologous platelet-rich plasma injection was performed immediately after the first, fifth, and tenth sessions of electromagnetic stimulation in group 2. The deep retinal capillary density and best corrected visual acuity changes were investigated before and after treatment at the first month. RESULTS The mean deep retinal capillary density was 52.0% before electromagnetic stimulation and 56.1% after ten sessions of application in group 1; this improvement was statistically significant (p = 0.01). In the combined treatment group (group 2), the mean deep retinal capillary density was 46.9% before the treatment and 56.5% after the treatment; this increase was also statistically significant (p = 0.01). Statistically significant best corrected visual acuity improvement (p = 0.01) could be achieved only in group 2. The combined treatment was significantly superior (p < 0.01) to treatment with only electromagnetic stimulation regarding best corrected visual acuity and deep retinal capillary density. In the control group (group 3), there was no statistically significant change (p = 0.09) in the mean deep retinal capillary density and best corrected visual acuity. CONCLUSION Treatment of the underlying cause is a priority in the treatment of deep retinal capillary ischemia. However, in the acute period, local ischemia treatment is necessary to prevent permanent retinal damage and scotomas. In mild cases, only electromagnetic stimulation, which is non-invasive and easy to use, might have a beneficial effect on deep retinal capillary density. In more severe cases, sub-tenon fresh autologous platelet-rich plasma injection together with electromagnetic stimulation may be more effective in the treatment of local ischemia of the retina in order to augment the response. FUNDING The Rapid Service Fees were funded by the Ankara University Tecnopolis Institute. CLINICAL TRIAL REGISTRATION titck.gov.tr identifier, 2018-136.
Collapse
Affiliation(s)
- Emin Özmert
- Department of Ophthalmology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Umut Arslan
- Ankara University Technopolis, Ankara, Turkey.
| |
Collapse
|
36
|
Foletti A, Baron P, Cozzolino M. Biophysical integrated approach for the management of early stages of CKD in elderly patients: a 12-month controlled study. Int Urol Nephrol 2019; 51:1395-1401. [PMID: 31264085 DOI: 10.1007/s11255-019-02212-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 06/18/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Chronic Kidney Disease (CKD) and its clinical evolution are an emerging issue, due to an increasingly aging population. Consequently, the evaluation of integrative strategies to manage the decline in renal function is warranted. The previous evidence indicates that a biophysical integrated approach can significantly improve renal function. Nevertheless, controlled trials assessing the clinical efficacy of this strategy are still needed. METHODS A 12-month controlled study was designed to assess the clinical outcome of a group of elderly patients affected by stage II/IIIa CKD randomly assigned to either control or biophysical treatment. In addition to the standard treatment with renin-angiotensin-aldosterone system inhibitors, the biophysical group underwent electromagnetic information transfer through aqueous system procedure every 3 months. Estimated glomerular filtration rate (eGFR), according to CKD-epidemiology collaboration formula, was calculated at baseline and every 3 months. RESULTS A total of 238 patients were included in the study, 118 (73.9 ± 3.8 years) in the biophysical therapy group and 120 (74.6 ± 4.2 years) in the control group. At baseline, mean eGFR was 69 ± 11.8 ml/min in the biophysical group and 70.7 ± 11.5 ml/min in the control group. After 1 year, eGFR was 74.1 ± 12.3 ml/min in the biophysical group, compared to 66.3 ± 11.9 ml/min in the control group, with a statistically significant difference between groups (p < 0.0001). The observed improvement in eGFR in the biophysical group was independent of age, gender, and antihypertensive treatment. CONCLUSION This study shows a potential contribution of a biophysical integrated strategy to support renal function against its natural decline in the elderly, warranting further clinical evaluation.
Collapse
Affiliation(s)
- Alberto Foletti
- Clinical Biophysics International Research Group, Lugano, Switzerland
- Institute of Translational Pharmacology, National Research Council-CNR, Rome, Italy
| | - Paolo Baron
- Institute of Translational Pharmacology, National Research Council-CNR, Rome, Italy
| | - Mario Cozzolino
- Department of Health Sciences, University of Milan, Milan, Italy.
- Renal Division, ASST Santi Paolo e Carlo, Milan, Italy.
| |
Collapse
|
37
|
Koczy B, Stołtny T, Pasek J, Leksowska–Pawliczek M, Czech S, Ostałowska A, Kasperczyk S, Białkowska M, Cieślar G. Evaluation of β-endorphin concentration, mood, and pain intensity in men with idiopathic hip osteoarthritis treated with variable magnetic field. Medicine (Baltimore) 2019; 98:e16431. [PMID: 31348243 PMCID: PMC6708614 DOI: 10.1097/md.0000000000016431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 01/26/2023] Open
Abstract
Osteoarthritis is the most frequently diagnosed disease of the musculoskeletal system. Growing number of patients waiting for surgical treatment and the possible negative consequences resulting from long-term pharmacological therapy lead to the search for non-pharmacological methods aimed at alleviating pain and reducing doses of analgesics, among them physical therapy with use of magnetic fields.The study involved 30 men aged 49 to 76 (mean age, 61.7 years) treated for idiopathic osteoarthritis of the hip joint. The subjects were divided into 2 groups (15 patients each) and underwent a cycle of magnetostimulation and magnetoledtherapy procedures, respectively. During the exposure cycle concentrations of β-endorphin were assessed 3 times and the mood was assessed 2 times. In addition, the assessment of pain intensity and the dose of analgesic drugs was performed before and after the end of therapy.Statistically significant increase in plasma β-endorphins concentration was observed in both groups of patients (magnetostimulation-P < .01 vs magnetoledtherapy-P < .001). In the assessment of mood of respondents, no statistically significant differences were found. Significant reduction in intensity of perceived pain was observed in both groups of patients (P < .05). In the group of patients who underwent magnetoledtherapy cycle, the analgesic drug use was significantly lower by 13% (P < .05) as compared with initial values, which was not noted in group of patients who underwent magnetostimulation procedures.The use of magnetic field therapy in the treatment of men with idiopathic osteoarthritis of hip joints causes a statistically significant increase in the concentration of plasma β-endorphins resulting in statistically significant analgesic effect in both magnetostimulation and magnetoledtherapy treated groups of patients, with accompanying decrease of need for analgetic drugs in magnetoledtherapy group, but without any significant changes regarding the patient's mood.
Collapse
Affiliation(s)
- Bogdan Koczy
- District Hospital of Orthopaedics and Trauma Surgery in Piekary Śląskie, Piekary Śląskie
| | - Tomasz Stołtny
- District Hospital of Orthopaedics and Trauma Surgery in Piekary Śląskie, Piekary Śląskie
| | - Jarosław Pasek
- Institute of Physical Education, Tourism and Physiotherapy, Jan Długosz University in Częstochowa, Częstochowa
| | | | - Szymon Czech
- District Hospital of Orthopaedics and Trauma Surgery in Piekary Śląskie, Piekary Śląskie
| | - Alina Ostałowska
- Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Zabrze
| | - Sławomir Kasperczyk
- Department of Biochemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Zabrze
| | - Monika Białkowska
- District Hospital of Orthopaedics and Trauma Surgery in Piekary Śląskie, Piekary Śląskie
| | - Grzegorz Cieślar
- Department of Internal Medicine, Angiology and Physical Medicine, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Bytom, Poland
| |
Collapse
|
38
|
Du Y, Liu X, Liang Q, Liang XJ, Tian J. Optimization and Design of Magnetic Ferrite Nanoparticles with Uniform Tumor Distribution for Highly Sensitive MRI/MPI Performance and Improved Magnetic Hyperthermia Therapy. Nano Lett 2019; 19:3618-3626. [PMID: 31074627 DOI: 10.1021/acs.nanolett.9b00630] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Two major technical challenges of magnetic hyperthermia are quantitative assessment of agent distribution during and following administration and achieving uniform heating of the tumor at the desired temperature without damaging the surrounding tissues. In this study, we developed a multimodal MRI/MPI theranostic agent with active biological targeting for improved magnetic hyperthermia therapy (MHT). First, by systematically elucidating the magnetic nanoparticle magnetic characteristics and the magnetic resonance imaging (MRI) and magnetic particle imaging (MPI) signal enhancement effects, which are based on the magnetic anisotropy, size, and type of nanoparticles, we found that 18 nm iron oxide NPs (IOs) could be used as superior nanocrystallines for high performance of MRI/MPI contrast agents in vitro. To improve the delivery uniformity, we then targeted tumors with the 18 nm IOs using a tumor targeting peptide, CREKA. Both MRI and MPI signals showed that the targeting agent improves the intratumoral delivery uniformity of nanoparticles in a 4T1 orthotopic mouse breast cancer model. Lastly, the in vivo antitumor MHT effect was evaluated, and the data showed that the improved targeting and delivery uniformity enables more effective magnetic hyperthermia cancer ablation than otherwise identical, nontargeting IOs. This preclinical study of image-guided MHT using cancer-targeting IOs and a novel MPI system paves the way for new MHT strategies.
Collapse
Affiliation(s)
- Yang Du
- CAS Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems , Institute of Automation, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xiaoli Liu
- University of Chinese Academy of Sciences , Beijing 100049 , China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road, Zhongguancun , Beijing 100190 , China
| | - Qian Liang
- CAS Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems , Institute of Automation, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xing-Jie Liang
- University of Chinese Academy of Sciences , Beijing 100049 , China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology of China , No. 11, First North Road, Zhongguancun , Beijing 100190 , China
| | - Jie Tian
- CAS Key Laboratory of Molecular Imaging, The State Key Laboratory of Management and Control for Complex Systems , Institute of Automation, Chinese Academy of Sciences , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine , Beihang University , Beijing 100190 , China
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology , Xidian University , Xi'an , Shaanxi 710126 , China
| |
Collapse
|
39
|
Abdulla FA, Alsaadi S, Sadat-Ali M, Alkhamis F, Alkawaja H, Lo S. Effects of pulsed low-frequency magnetic field therapy on pain intensity in patients with musculoskeletal chronic low back pain: study protocol for a randomised double-blind placebo-controlled trial. BMJ Open 2019; 9:e024650. [PMID: 31182440 PMCID: PMC6561444 DOI: 10.1136/bmjopen-2018-024650] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 03/22/2019] [Accepted: 05/15/2019] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION The aim of the present study is to investigate the effectiveness of pulsed low-frequency magnetic field (PLFMF) on the management of chronic low back pain (CLBP). METHODS AND ANALYSIS A randomised double-blinded controlled clinical trial will be conducted, involving 200 patients with CLBP. Participants will be randomised in a 1:1 ratio to receive either active PLFMF (experimental arm) or sham treatment (control arm) using a permuted-block design which will be stratified according to three subtypes of musculoskeletal CLBP (nociceptive, peripheral neuropathic or central sanitisation). The intervention consists of three sessions/week for 6 weeks. The primary outcome is the percentage change in Numerical Rating Scale (NRS) pain at week 24 after treatment completion with respect to the baseline. Secondary outcomes include percentage NRS pain during treatment and early after treatment completion, short form 36 quality of life, Roland and Morris Disability Questionnaire; Depression Anxiety Stress Scale 21, Patient Specific Functional Scale, Global perceived effect of condition change, Pittsburgh Sleep Quality Index and Modified Fatigue Impact Scale. Measures will be taken at baseline, 3 and 6 weeks during the intervention and 6, 12 and 24 weeks after completing the intervention. Adverse events between arms will be evaluated. Data will be analysed on an intention-to-treat basis. ETHICS AND DISSEMINATION The study is funded by Imam Abdulrahman Bin Faisal University (IAU). It has been approved by the institutional review board of IAU (IRB- 2017-03-129). The study will be conducted at King Fahd Hospital of the University and will be monitored by the Hospital monitoring office for research and research ethics. The trial is scheduled to begin in September 2018. Results obtained will be presented in international conferences and will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER ACTRN12618000921280, prospectively.
Collapse
Affiliation(s)
- Fuad A Abdulla
- Department of Physical Therapy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Saad Alsaadi
- Department of Physical Therapy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mir Sadat-Ali
- Department of Orthopedic Surgery, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Fahd Alkhamis
- Department of Neurology, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hani Alkawaja
- Department of Physical Therapy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Serigne Lo
- Institute of Research and Medical Consultation, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- Melanoma Institute Australia, North Sydney, New South Wales, Australia
| |
Collapse
|
40
|
Jimenez H, Wang M, Zimmerman JW, Pennison MJ, Sharma S, Surratt T, Xu ZX, Brezovich I, Absher D, Myers RM, DeYoung B, Caudell DL, Chen D, Lo HW, Lin HK, Godwin DW, Olivier M, Ghanekar A, Chen K, Miller LD, Gong Y, Capstick M, D'Agostino RB, Munden R, Merle P, Barbault A, Blackstock AW, Bonkovsky HL, Yang GY, Jin G, Liu L, Zhang W, Watabe K, Blackman CF, Pasche BC. Tumour-specific amplitude-modulated radiofrequency electromagnetic fields induce differentiation of hepatocellular carcinoma via targeting Ca v3.2 T-type voltage-gated calcium channels and Ca 2+ influx. EBioMedicine 2019; 44:209-224. [PMID: 31160272 PMCID: PMC6604666 DOI: 10.1016/j.ebiom.2019.05.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/30/2019] [Accepted: 05/14/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Administration of amplitude modulated 27·12 MHz radiofrequency electromagnetic fields (AM RF EMF) by means of a spoon-shaped applicator placed on the patient's tongue is a newly approved treatment for advanced hepatocellular carcinoma (HCC). The mechanism of action of tumour-specific AM RF EMF is largely unknown. METHODS Whole body and organ-specific human dosimetry analyses were performed. Mice carrying human HCC xenografts were exposed to AM RF EMF using a small animal AM RF EMF exposure system replicating human dosimetry and exposure time. We performed histological analysis of tumours following exposure to AM RF EMF. Using an agnostic genomic approach, we characterized the mechanism of action of AM RF EMF. FINDINGS Intrabuccal administration results in systemic delivery of athermal AM RF EMF from head to toe at levels lower than those generated by cell phones held close to the body. Tumour shrinkage results from differentiation of HCC cells into quiescent cells with spindle morphology. AM RF EMF targeted antiproliferative effects and cancer stem cell inhibiting effects are mediated by Ca2+ influx through Cav3·2 T-type voltage-gated calcium channels (CACNA1H) resulting in increased intracellular calcium concentration within HCC cells only. INTERPRETATION Intrabuccally-administered AM RF EMF is a systemic therapy that selectively block the growth of HCC cells. AM RF EMF pronounced inhibitory effects on cancer stem cells may explain the exceptionally long responses observed in several patients with advanced HCC. FUND: Research reported in this publication was supported by the National Cancer Institute's Cancer Centre Support Grant award number P30CA012197 issued to the Wake Forest Baptist Comprehensive Cancer Centre (BP) and by funds from the Charles L. Spurr Professorship Fund (BP). DWG is supported by R01 AA016852 and P50 AA026117.
Collapse
Affiliation(s)
- Hugo Jimenez
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Minghui Wang
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Jacquelyn W Zimmerman
- Department of Medicine, The Johns Hopkins School of Medicine, Baltimore, MD, United States of America; Division of Haematology/Oncology, The University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Michael J Pennison
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Sambad Sharma
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Trevor Surratt
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Zhi-Xiang Xu
- Division of Haematology/Oncology, The University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Ivan Brezovich
- Department of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Devin Absher
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
| | - Richard M Myers
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
| | - Barry DeYoung
- Department of Pathology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - David L Caudell
- Department of Pathology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Dongquan Chen
- Division of Preventive Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States of America
| | - Hui-Wen Lo
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Dwayne W Godwin
- Department of Neurobiology and Anatomy, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Michael Olivier
- Section of Molecular Medicine, Department of Medicine, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Anand Ghanekar
- Department of Surgery, University Health Network, Toronto, Ontario, Canada
| | - Kui Chen
- Toronto General Hospital Research Institute, Toronto, Ontario, Canada
| | - Lance D Miller
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Yijian Gong
- IT'IS Foundation, Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Myles Capstick
- IT'IS Foundation, Swiss Federal Institute of Technology, Zurich, Switzerland
| | - Ralph B D'Agostino
- Department of Biostatistical Sciences, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Reginald Munden
- Department of Radiology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Philippe Merle
- Croix-Rousse University Hospital, Hepato-Gastroenterology and Digestive Oncology, Lyon, France
| | | | - Arthur W Blackstock
- Department of Radiation Oncology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Herbert L Bonkovsky
- Section on Gastroenterology, Department of Medicine, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Guang-Yu Yang
- Department of Pathology, Northwestern University, Feinberg School of Medicine, Chicago, IL, United States of America
| | - Guangxu Jin
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Liang Liu
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Wei Zhang
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America
| | - Carl F Blackman
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America.
| | - Boris C Pasche
- Department of Cancer Biology, Wake Forest Baptist Medical Centre, Winston-Salem, NC, United States of America.
| |
Collapse
|
41
|
Gehwolf R, Schwemberger B, Jessen M, Korntner S, Wagner A, Lehner C, Weissenbacher N, Tempfer H, Traweger A. Global Responses of Il-1β-Primed 3D Tendon Constructs to Treatment with Pulsed Electromagnetic Fields. Cells 2019; 8:cells8050399. [PMID: 31052237 PMCID: PMC6562657 DOI: 10.3390/cells8050399] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/26/2019] [Accepted: 04/27/2019] [Indexed: 01/09/2023] Open
Abstract
Tendinopathy is accompanied by a cascade of inflammatory events promoting tendon degeneration. Among various cytokines, interleukin-1β plays a central role in driving catabolic processes, ultimately resulting in the activation of matrix metalloproteinases and a diminished collagen synthesis, both of which promote tendon extracellular matrix degradation. Pulsed electromagnetic field (PEMF) therapy is often used for pain management, osteoarthritis, and delayed wound healing. In vitro PEMF treatment of tendon-derived cells was shown to modulate pro-inflammatory cytokines, potentially limiting their catabolic effects. However, our understanding of the underlying cellular and molecular mechanisms remains limited. We therefore investigated the transcriptome-wide responses of Il-1β-primed rat Achilles tendon cell-derived 3D tendon-like constructs to high-energy PEMF treatment. RNASeq analysis and gene ontology assignment revealed various biological processes to be affected by PEMF, including extracellular matrix remodeling and negative regulation of apoptosis. Further, we show that members of the cytoprotective Il-6/gp130 family and the Il-1β decoy receptor Il1r2 are positively regulated upon PEMF exposure. In conclusion, our results provide fundamental mechanistic insight into the cellular and molecular mode of action of PEMF on tendon cells and can help to optimize treatment protocols for the non-invasive therapy of tendinopathies.
Collapse
Affiliation(s)
- Renate Gehwolf
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| | - Bettina Schwemberger
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| | - Malik Jessen
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, German Red Cross Blood Donor Service Baden-Württemberg-Hessen gGmbH, Heidelberg University, 68167 Mannheim, Germany.
| | - Stefanie Korntner
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Science Foundation Ireland Centre for Research in Medical Devices (CÚRAM) National University of Ireland Galway; H91 W2TY Galway, Ireland.
| | - Andrea Wagner
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| | - Christine Lehner
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| | - Nadja Weissenbacher
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| | - Herbert Tempfer
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| | - Andreas Traweger
- Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria.
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria.
| |
Collapse
|
42
|
Dubin MJ, Ilieva IP, Deng ZD, Thomas J, Cochran A, Kravets K, Brody BD, Christos PJ, Kocsis JH, Liston C, Gunning FM. A double-blind pilot dosing study of low field magnetic stimulation (LFMS) for treatment-resistant depression (TRD). J Affect Disord 2019; 249:286-293. [PMID: 30784726 PMCID: PMC6486658 DOI: 10.1016/j.jad.2019.02.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/24/2019] [Accepted: 02/11/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND Low field magnetic stimulation is a potentially rapid-acting treatment for depression with mood-enhancing effects in as little as one 20-min session. The most convincing data for LFMS has come from treating bipolar depression. We examined whether LFMS also has rapid mood-enhancing effects in treatment-resistant major depressive disorder, and whether these effects are dose-dependent. OBJECTIVE/HYPOTHESIS We hypothesized that a single 20-min session of LFMS would reduce depressive symptom severity and that the magnitude of this change would be greater after three 20-min sessions than after a single 20-min session. METHODS In a double-blind randomized controlled trial, 30 participants (age 21-65) with treatment-resistant depression were randomized to three 20-min active or sham LFMS treatments with 48 h between treatments. Response was assessed immediately following LFMS treatment using the 6-item Hamilton Depression Rating Scale (HAMD-6), the Positive and Negative Affect Scale (PANAS) and the Visual Analog Scale. RESULTS Following the 3rd session of LFMS, the effect of LFMS on VAS and HAMD-6 was superior to sham (F (1, 24) = 7.45, p = 0.03, Bonferroni-Holm corrected; F (1, 22) = 6.92, p = 0.03, Bonferroni-Holm corrected, respectively). There were no differences between sham and LFMS following the initial or second session with the effect not becoming significant until after the third session. CONCLUSIONS Three 20-min LFMS sessions were required for active LFMS to have a mood-enhancing effect for individuals with treatment-resistant depression. As this effect may be transient, future work should address dosing schedules of longer treatment courses as well as biomarker-based targeting of LFMS to optimize patient selection and treatment outcomes.
Collapse
Affiliation(s)
- Marc J Dubin
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA.
| | - Irena P Ilieva
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - Zhi-De Deng
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jeena Thomas
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ashly Cochran
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - Kamilla Kravets
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - Benjamin D Brody
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - Paul J Christos
- Department of Healthcare Policy and Research, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - James H Kocsis
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - Conor Liston
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA; Sackler Institute for Developmental Psychobiology, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| | - Faith M Gunning
- Department of Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA; Institute of Geriatric Psychiatry, Weill Cornell Medical College-New York Presbyterian Hospital, 525 East 68th Street, New York, NY 10065, USA
| |
Collapse
|
43
|
Maqbool K, Shaheen S, Siddiqui AM. Effect of nano-particles on MHD flow of tangent hyperbolic fluid in a ciliated tube: an application to fallopian tube. Math Biosci Eng 2019; 16:2927-2941. [PMID: 31137243 DOI: 10.3934/mbe.2019144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study shows the effects of magnetic field and copper nanoparticles on the flow of tangent hyperbolic fluid (blood) through a ciliated tube (fallopian tube). The present study will be very helpful for those patients who are facing blood clotting in fallopian tube that may cause for infertility or cancer. The nanoparticles and magnetic field are very helpful to break the clots in blood flowing in fallopian tube. Since blood flows in fallopian tube due to ciliary movement, therefore medicines containing copper nanoparticles and magnetic field with radiation therapy help to improve the patient. Ciliary movement has a particular pattern of motion i.e., metachronal wavy motion which helps to fluid flow. For the forced convective MHD flow of tangent hyperbolic nano-fluid, momentum and energy equations are solved by the small Reynolds' number approximation and Adomian decomposition method by constructing the recursive relation of ADM and solved by software "MATHEMATICA". The effects of parameters such as nanoparticle volume fraction, Hartmann number, entropy generation and Bejan's number have been discussed through graphs plotted in software "MATHEMATICA". It is found that blood flow is accelerated and heat transfer enhancement is maximum in the presence of nano particles, also magnetic effects accelerates the blood flow and help to enhance the heat transfer whereas the presence of porous medium increases the fluid's velocity and reduce the transfer of heat through fluid flow.
Collapse
Affiliation(s)
- K Maqbool
- Department of Mathematics & Statistics, International Islamic University, Islamabad 44000, Pakistan
| | - S Shaheen
- Department of Mathematics & Statistics, International Islamic University, Islamabad 44000, Pakistan
| | - A M Siddiqui
- Department of Mathematics, York Campus, Pennsylvania State University, York, Pennsylvania 17403, U. S. A
| |
Collapse
|
44
|
Murray LM, Knikou M. Transspinal stimulation increases motoneuron output of multiple segments in human spinal cord injury. PLoS One 2019; 14:e0213696. [PMID: 30845251 PMCID: PMC6405126 DOI: 10.1371/journal.pone.0213696] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 02/26/2019] [Indexed: 12/13/2022] Open
Abstract
Targeted neuromodulation strategies that strengthen neuronal activity are in great need for restoring sensorimotor function after chronic spinal cord injury (SCI). In this study, we established changes in the motoneuron output of individuals with and without SCI after repeated noninvasive transspinal stimulation at rest over the thoracolumbar enlargement, the spinal location of leg motor circuits. Cases of motor incomplete and complete SCI were included to delineate potential differences when corticospinal motor drive is minimal. All 10 SCI and 10 healthy control subjects received daily monophasic transspinal stimuli of 1-ms duration at 0.2 Hz at right soleus transspinal evoked potential (TEP) subthreshold and suprathreshold intensities at rest. Before and two days after cessation of transspinal stimulation, we determined changes in TEP recruitment input-output curves, TEP amplitude at stimulation frequencies of 0.1, 0.125, 0.2, 0.33 and 1.0 Hz, and TEP postactivation depression upon transspinal paired stimuli at interstimulus intervals of 60, 100, 300, and 500 ms. TEPs were recorded at rest from bilateral ankle and knee flexor/extensor muscles. Repeated transspinal stimulation increased the motoneuron output over multiple segments. In control and complete SCI subjects, motoneuron output increased for knee muscles, while in motor incomplete SCI subjects motoneuron output increased for both ankle and knee muscles. In control subjects, TEPs homosynaptic and postactivation depression were present at baseline, and were potentiated for the distal ankle or knee flexor muscles. TEPs homosynaptic and postactivation depression at baseline depended on the completeness of the SCI, with minimal changes observed after transspinal stimulation. These results indicate that repeated transspinal stimulation increases spinal motoneuron responsiveness of ankle and knee muscles in the injured human spinal cord, and thus can promote motor recovery. This noninvasive neuromodulation method is a promising modality for promoting functional neuroplasticity after SCI.
Collapse
Affiliation(s)
- Lynda M. Murray
- Klab4Recovery Research Laboratory, Department of Physical Therapy, College of Staten Island, The City University of New York, Staten Island, New York, United States of America
| | - Maria Knikou
- Klab4Recovery Research Laboratory, Department of Physical Therapy, College of Staten Island, The City University of New York, Staten Island, New York, United States of America
- PhD Program in Biology and Collaborative Neuroscience Program, Graduate Center of The City University of New York, New York, New York, United States of America
| |
Collapse
|
45
|
Daskalakis AA, Daskalakis ZJ. Treating resistant depression with 2 forms of convulsive therapy: a clinical case study. J Psychiatry Neurosci 2019; 44:143-144. [PMID: 30810025 PMCID: PMC6397037 DOI: 10.1503/jpn.180141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
46
|
Abstract
Osteoporosis (OP) is considered to be a well-defined disease which results in high morbidity and mortality. In patients diagnosed with OP, low bone mass and fragile bone strength have been demonstrated to significantly increase risk of fragility fractures. To date, various anabolic and antiresorptive therapies have been applied to maintain healthy bone mass and strength. Pulsed electromagnetic fields (PEMFs) are employed to treat patients suffering from delayed fracture healing and nonunions. Although PEMFs stimulate osteoblastogenesis, suppress osteoclastogenesis, and influence the activity of bone marrow mesenchymal stem cells (BMSCs) and osteocytes, ultimately leading to retention of bone mass and strength. However, whether PEMFs could be taken into clinical use to treat OP is still unknown. Furthermore, the deeper signaling pathways underlying the way in which PEMFs influence OP remain unclear.
Collapse
Affiliation(s)
- T Wang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
- Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - L Yang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
- Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - J Jiang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
- Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Y Liu
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Z Fan
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
- Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - C Zhong
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
- Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - C He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
- Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.
| |
Collapse
|
47
|
Weber-Rajek M, Radzimińska A, Pilarska B, Kozakiewicz M, Goch A. [Assessment of irisin concentration in women with stress urinary incontinence after using exracorporeal magnetic innervation (EXMI) - pilot study]. Wiad Lek 2019; 72:368-373. [PMID: 31050982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE Introduction: In Poland, urinary incontinence (UI) is the ninth in frequency of reported health problem, which occurs in 15.4% of women over 60 years of age (data of the Central Statistical Office of 2016). The search for optimal treatment methods for this disease and objective methods for assessing the effectiveness of therapy is a challenge for an interdisciplinary team of specialists. The aim: To examine the effect of Extracorporeal Magnetic Innervation (ExMI) on the Irisin concentration in women with stress urinary incontinence. PATIENTS AND METHODS Materials and methods: A total of 52 women were included in the analysis: 28 participants were allocated to the experimental group (EG) and 24 to the control group (CG). EG patients completed ExMI therapy, whereas no therapeutic intervention was applied to the CG. Irisin concentration, severity of urinary incontinence (RUIS) were measured in all women at the initial and final assessments. RESULTS Results: By comparing the initial and final assessment results we have been able to demonstrate a statistically significant differences in the measured variables in the EG. No statistically significant differences in the measured variables were reported for the CG at the initial and final assessments. No correlation was observed between the Irisin concentration results and severity of urinary incontinence in the EG at the final assessment. CONCLUSION Conclusions: There is a need for further studies of biochemical parameters in the assessment of pelvic floor muscle dysfunction.
Collapse
Affiliation(s)
- Magdalena Weber-Rajek
- Katedra Fizjoterapii, Wydział Nauk o Zdrowiu, Collegium Medicum w Bydgoszczy, Uniwersytet Mikołaja Kopernika w Toruniu, Bydgoszcz, Polska
| | - Agnieszka Radzimińska
- Katedra Fizjoterapii, Wydział Nauk o Zdrowiu, Collegium Medicum w Bydgoszczy, Uniwersytet Mikołaja Kopernika w Toruniu, Bydgoszcz, Polska
| | - Beata Pilarska
- Klinika Urologii, Wydział Nauk o Zdrowiu, Collegium Medicum w Bydgoszczy, Uniwersytet Mikołaja Kopernika w Toruniu, Bydgoszcz, Polska
| | - Mariusz Kozakiewicz
- Katedra i Zakład Chemii Środków Spożywczych, Wydział Nauk o Zdrowiu, Collegium Medicum w Bydgoszczy, Uniwersytet Mikołaja Kopernika w Toruniu, Bydgoszcz, Polska
| | - Aleksander Goch
- Katedra Fizjoterapii, Wydział Nauk o Zdrowiu, Collegium Medicum w Bydgoszczy, Uniwersytet Mikołaja Kopernika w Toruniu, Bydgoszcz, Polska
| |
Collapse
|
48
|
Fredericks DC, Petersen EB, Rhodes M, Larew GA, Nepola JV. The Effect of Pulsed Electromagnetic Field and Combined Magnetic Field Exposure Time on Healing of a Rabbit Tibial Osteotomy. Iowa Orthop J 2019; 39:20-26. [PMID: 32577103 PMCID: PMC7047300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND This study compares effectiveness of two commercially available signals, Pulsed Electromagnetic Field (PEMF) and Combined Magnetic Field (CMF) clinical signals, to stimulate bone healing in rabbit tibial osteotomies. METHODS One millimeter osteotomies in New Zealand White rabbits, stabilized with external fixators, were exposed daily to either signal for 30 minutes, three or six hours. Osteotomized sham controls received no signal exposure. Analyses of torsional strength, periosteal callus area and fracture healing stage demonstrated dose responses to increasing daily exposures to both signals. RESULTS By 14 days torsional strength increased over shams in the three and six hour-treated groups, significant only for the six hour groups (p<0.05). By 21 days both three and six hour-treated groups were significantly stronger than shams (p<0.05, p<0.005) and the PEMF 30 minute treated group also showed significance (p<0.05). PEMF versus CMF-treated groups were not different at any exposure time. CONCLUSIONS Both CMF and PEMF signals were most effective in this model when used for six hours per day. CLINICAL RELEVANCE In this model we demonstrate that though both PEMF and CMF are "bioactive" and promote healing at shorter and longer exposure dosages, there exists an "optimal" threshold effect of 6 hours/day electromagnetic wave stimulation for bone healing.
Collapse
Affiliation(s)
- Douglas C Fredericks
- Department of Orthopedics and Rehabilitation, The University of Iowa, Iowa City, IA USA
| | - Emily B Petersen
- Department of Orthopedics and Rehabilitation, The University of Iowa, Iowa City, IA USA
| | - Madison Rhodes
- Department of Orthopedics and Rehabilitation, The University of Iowa, Iowa City, IA USA
| | - Grace A Larew
- Department of Orthopedics and Rehabilitation, The University of Iowa, Iowa City, IA USA
| | - James V Nepola
- Department of Orthopedics and Rehabilitation, The University of Iowa, Iowa City, IA USA
| |
Collapse
|
49
|
Kinney BM, Lozanova P. High intensity focused electromagnetic therapy evaluated by magnetic resonance imaging: Safety and efficacy study of a dual tissue effect based non-invasive abdominal body shaping. Lasers Surg Med 2019; 51:40-46. [PMID: 30302767 PMCID: PMC6585690 DOI: 10.1002/lsm.23024] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/14/2018] [Indexed: 01/19/2023]
Abstract
OBJECTIVES This study introduces an initial evaluation of a novel High-Intensity Focused Electromagnetic (HIFEM) technology. The primary goal is to quantify any effects the treatments may have on abdominal tissues, as well as to establish hypotheses for future research of this technology. METHODS Twenty-two patients received four abdominal treatments using the EMSCULPT device (BTL Industries Inc., Boston, MA). Anthropometric evaluations were recorded and digital photographs were taken at baseline, at 2 months, and at 6 months post-treatments. The MRI without contrast determined by vertertebras T12 and S1 (FIESTA and FSPRG sequences) was used to measure dimensions in coronal cross-sectional images of abdominal muscle and fatty tissues, in order to assess any anatomical changes induced by the application. RESULTS Analysis of the same MRI slices verified by tissue artefacts showed a statistically significant (all P < 0.0001) average 18.6% reduction of adipose tissue thickness, 15.4% increase in rectus abdominis muscle thickness, and 10.4% reduction in rectus abdominus separation (diastasis recti) as measured from the medial border of the muscle 2 months post-treatment. More significant improvements were observed in patients with BMI 18.5-24.9 (classified as "normal"). MRI data from 6-month follow-up suggest the changes can be preserved in longer term. Tape measurements showed on average 3.8 cm subumbilical circumference reduction. The weight of the subjects did not change significantly (average -0.5 lb; P > 0.05). No adverse events were reported. CONCLUSIONS MRI, considered as a highly precise diagnostic method, revealed simultaneous muscle growth, fat reduction and reduced abdominal separation at 2 months and at 6 months post treatments, unrelated with dieting. Further research should investigate the exact physiological processes which stand behind the tissue changes observed in this study. Lasers Surg. Med. 51:40-46, 2019. © 2018 The Authors. Lasers in Surgery and Medicine Published by Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Brian M. Kinney
- University of Southern California Division of Plastic SurgeryBeverly HillsCalifornia
| | | |
Collapse
|
50
|
Abstract
The instrument and accessories are an important part of the electrodiagnostic (EDX) testing. Their functional understanding is useful to recognize and reduce various artifacts and noise/interference in the signal. In this review, we will describe the technical specifications of various components of the instrument, and their effect on signals and noise. This will be illustrated using example of electromyography and nerve conduction studies. However the same principles also apply to other modalities of testing. We will also provide general strategies to reduce noise and artifacts, followed by some modality specific examples.
Collapse
|