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Gao Y, Hou X, Wei Z, Chen K. Sinusoidal alternating electromagnetic field accelerates fracture healing in rats. Zhejiang Da Xue Xue Bao Yi Xue Ban 2024:1-8. [PMID: 38832464 DOI: 10.3724/zdxbyxb-2023-0454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
OBJECTIVES To investigate the effect of sinusoidal alternating electromagnetic field (SEMF) on fracture healing and its mechanism. METHODS Femoral fracture model was established using SPF male Wistar rats, 30 model rats were randomly divided into model control (MC) and SEMF groups with 15 rats in each group. The SEMF group was given 50 Hz 1.8 mT for 90 min every day, and the MC group was not treated. X-ray examinations were performed every two weeks to determine the formation of bone scabs in each group of rats. Three rats were sacrificed after 2 and 4 weeks of treatment in both groups. Protein was extracted from the fractured femurs, and the expression of type Ⅰ collagen (COL-1), Osterix (OSX), Runt-related transcription factor 2 (RUNX2), and vascular endothelial growth factor (VEGF) protein level was detected by immunoblotting. After 8 weeks, the femur on the operated side was taken for micro-CT scanning to observe fracture healing, angiography to observe blood vessel growth, and organs such as hearts, livers, spleens, lungs, and kidneys were taken for safety evaluation by hematoxylin-eosin staining (HE staining). RESULTS The bone scab scores of the SEMF group were significantly higher than those of the MC group after 2, 4, 6, and 8 weeks of treatment (all P<0.01); the fracture healing of the SEMF group was better than that of the MC group after 8 weeks, and the bone volume scores of the two groups were 0.243±0.012 and 0.186±0.008, respectively, with statistically significant differences (P<0.01); and the number of blood vessels in the SEMF group was also more than that of the MC group after 8 weeks. The results of protein blotting method showed that the protein expression of VEGF, COL-1, RUNX2, and OSX was higher in the SEMF group than in the MC group after 2 and 4 weeks of treatment (all P<0.05), and the HE staining showed that there was no abnormality in histopathological observation of examined organs in both groups. CONCLUSIONS SEMF can accelerate fracture healing by promoting the expression of osteogenic factors and vascular proliferation without significant adverse effects.
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Affiliation(s)
- Yuhai Gao
- Laboratory of Basic Medical Science Research, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China.
- Key Laboratory of Stem Cells and Gene Drugs, Lanzhou 730050, China.
| | - Xuefeng Hou
- Laboratory of Basic Medical Science Research, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
| | - Zhenlong Wei
- Laboratory of Basic Medical Science Research, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
- Key Laboratory of Stem Cells and Gene Drugs, Lanzhou 730050, China
| | - Keming Chen
- Laboratory of Basic Medical Science Research, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China.
- Key Laboratory of Stem Cells and Gene Drugs, Lanzhou 730050, China.
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Zhang B, Zeng J, Zhang J, Song K, Kuang L, Wu X, Zhao G, Shang H, Ni Z, Chen L. Research trends and perspective of low-intensity pulsed ultrasound in orthopedic rehabilitation treatment based on Web of Science: A bibliometric analysis. J Back Musculoskelet Rehabil 2024:BMR230273. [PMID: 38758991 DOI: 10.3233/bmr-230273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/19/2024]
Abstract
BACKGROUND Ultrasound has a long history as a diagnostic and therapeutic tool. Low-intensity pulsed ultrasound (LIPUS), whose intensity is below 300 mW/cm2, has been widely used in orthopedic rehabilitation treatment. However, the detailed bioeffects and underlying mechanisms of LIPUS treatment need to be explored. OBJECTIVE To make a comprehensive view of the field, bibliometric and visualization analysis was used to reveal the global research trends of LIPUS in orthopedics and rehabilitation treatment between 1994 and 2023. METHODS All literature data on LIPUS were retrieved from the Web of Science Core Collection database. VOSviewer and CiteSpace were applied for the bibliometric and visualization analysis. RESULTS A total of 760 publications were included. The distribution of publications generally showed an unstable rising trend. China had the highest number of publications (28.0%), and Chong Qing Medical University was the organization with the highest number of publications (5.8%). Ultrasound in Medicine and Biology had the highest number of publications (8.8%), while BMJ-British Medical Journal had the highest impact factor among the retrieved journals. Ling Qin from the Chinese University of Hong Kong was the most active researcher. Our overlay visualization map showed that the keywords such as pain, knee osteoarthritis, apoptosis, chondrocytes, cartilage, and autophagy, which link to osteoarthritis, have becoming the new research trends and hotspots. CONCLUSION LIPUS is a popular and increasingly important area of orthopedic rehabilitation, and collaboration of authors from different countries should be further strengthened. Predictably, clinical application of LIPUS on chronic inflammation-related diseases and regenerative medicine, and in-depth biological mechanisms are the orientations of LIPUS in orthopedic rehabilitation treatment.
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Affiliation(s)
- Bin Zhang
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
- Rehabilitation Department, Key Specialty of Neck and Low Back Pain Rehabilitation, Xingcheng Special Duty Sanatorium, Xingcheng, Liaoning, China
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Jiahao Zeng
- Rehabilitation Department, Key Specialty of Neck and Low Back Pain Rehabilitation, Xingcheng Special Duty Sanatorium, Xingcheng, Liaoning, China
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Jiayi Zhang
- Rehabilitation Department, Key Specialty of Neck and Low Back Pain Rehabilitation, Xingcheng Special Duty Sanatorium, Xingcheng, Liaoning, China
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Keyan Song
- Rehabilitation Department, Key Specialty of Neck and Low Back Pain Rehabilitation, Xingcheng Special Duty Sanatorium, Xingcheng, Liaoning, China
| | - Liang Kuang
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiangbo Wu
- Department of Rehabilitation Medicine, Xi-Jing Hospital, Air Force Medical University (Fourth Military Medical University), Xi'an, Shaanxi, China
| | - Guang Zhao
- Rehabilitation Department, Key Specialty of Neck and Low Back Pain Rehabilitation, Xingcheng Special Duty Sanatorium, Xingcheng, Liaoning, China
| | - Huijuan Shang
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Zhenhong Ni
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, China
| | - Lin Chen
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
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Hosseini S, Parsaei H, Moosavifar M, Tavakoli N, Ahadi R, Roshanbinfar K. Static magnetic field enhances the bone remodelling capacity of human demineralized bone matrix in a rat animal model of cranial bone defects. J Mater Chem B 2024; 12:3774-3785. [PMID: 38535706 DOI: 10.1039/d3tb02299d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
The regeneration of bone defects that exceed 2 cm is a challenge for the human body, necessitating interventional therapies. Demineralized bone matrices (DBM) derived from biological tissues have been employed for bone regeneration and possess notable osteoinductive and osteoconductive characteristics. Nevertheless, their efficiency in regenerating critically sized injuries is limited, and therefore additional signaling cues are required. Thanks to the piezoelectric properties of the bone, external physical stimulation is shown to accelerate tissue healing. We have implanted human DBM in critically sized cranial bone defects in rat animal models and exposed them to an external magnetic field (1 T) to enhance endogenous bone formation. Our in vitro experiments showed the superior cytocompatibility of DBM compared to cell culture plates. Furthermore, alkaline phosphatase activity after 14 days and Alizarin red staining at 28 days demonstrated differentiation of rat bone marrow mesenchymal stem cells into bone lineage on DBM. Computer tomography images together with histological analyses showed that implanting DBM in the injured rats significantly enhanced bone regeneration. Notably, combining DBM transplantation with a 2 h daily exposure to a 1 T magnetic field for 2 weeks (day 7 to 21 post-surgery) significantly improved bone regeneration compared to DBM transplantation alone. This research indicates that utilizing external magnetic stimulation significantly enhances the potential of bone allografts to regenerate critically sized bone defects.
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Affiliation(s)
- SeyedJamal Hosseini
- Biomedical Engineering Department, Amirkabir University of Technology, 159163-4311, Tehran, Iran
- Cellular and Molecular Research Center, Faculty of Medicine, Iran University of Medical Sciences, 1449614535, Tehran, Iran
| | - Houman Parsaei
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, 3513138111, Semnan, Iran
| | - MirJavad Moosavifar
- Biomedical Engineering Department, Amirkabir University of Technology, 159163-4311, Tehran, Iran
- Cellular and Molecular Research Center, Faculty of Medicine, Iran University of Medical Sciences, 1449614535, Tehran, Iran
- Institut für experimentelle molekulare Bildgebung, RWTH Aachen University, Aachen 52074, Germany
| | - Narjes Tavakoli
- School of Industrial Design, College of Fine Arts, University of Tehran, 1415564583, Tehran, Iran
| | - Reza Ahadi
- Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, 1449614535, Tehran, Iran
| | - Kaveh Roshanbinfar
- Experimental Renal and Cardiovascular Research, Department of Nephropathology, Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen 91058, Germany.
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Zahumenska R, Badurova B, Pavelek M, Sojka P, Pavlisova T, Spanik P, Sivonova MK, Novakova S, Strnadel J, Halasova E, Frivaldsky M, Skovierova H. Comparison of pulsed and continuous electromagnetic field generated by WPT system on human dermal and neural cells. Sci Rep 2024; 14:5514. [PMID: 38448548 PMCID: PMC10918061 DOI: 10.1038/s41598-024-56051-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/01/2024] [Indexed: 03/08/2024] Open
Abstract
In recent decades, we have seen significant technical progress in the modern world, leading to the widespread use of telecommunications systems, electrical appliances, and wireless technologies. These devices generate electromagnetic radiation (EMR) and electromagnetic fields (EMF) most often in the extremely low frequency or radio-frequency range. Therefore, they were included in the group of environmental risk factors that affect the human body and health on a daily basis. In this study, we tested the effect of exposure EMF generated by a new prototype wireless charging system on four human cell lines (normal cell lines-HDFa, NHA; tumor cell lines-SH-SY5Y, T98G). We tested different operating parameters of the wireless power transfer (WPT) device (87-207 kHz, 1.01-1.05 kW, 1.3-1.7 mT) at different exposure times (pulsed 6 × 10 min; continuous 1 × 60 min). We observed the effect of EMF on cell morphology and cytoskeletal changes, cell viability and mitotic activity, cytotoxicity, genotoxicity, and oxidative stress. The results of our study did not show any negative effect of the generated EMF on either normal cells or tumor cell lines. However, in order to be able to estimate the risk, further population and epidemiological studies are needed, which would reveal the clinical consequences of EMF impact.
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Affiliation(s)
- Romana Zahumenska
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Bibiana Badurova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4D, 036 01, Martin, Slovakia
| | - Miroslav Pavelek
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia
| | - Peter Sojka
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia
| | - Tereza Pavlisova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Pavol Spanik
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia
| | - Monika Kmetova Sivonova
- Department of Medical Biochemistry, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Mala Hora 4D, 036 01, Martin, Slovakia
| | - Slavomira Novakova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Jan Strnadel
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Erika Halasova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia
| | - Michal Frivaldsky
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technologies, University of Zilina, 010 26, Žilina, Slovakia.
| | - Henrieta Skovierova
- Jessenius Faculty of Medicine in Martin, Biomedical Centre Martin, Comenius University in Bratislava, Mala Hora 4C, 036 01, Martin, Slovakia.
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Abdulrahman SJ, Abdulhadi MA, Turki Jalil A, Falah D, Merza MS, Almulla AF, Ali A, Ali RT. Conjugated linoleic acid and glucosamine supplements may prevent bone loss in aging by regulating the RANKL/RANK/OPG pathway. Mol Biol Rep 2023; 50:10579-10588. [PMID: 37932498 DOI: 10.1007/s11033-023-08839-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/25/2023] [Indexed: 11/08/2023]
Abstract
The skeleton is a living organ that undergoes constant changes, including bone formation and resorption. It is affected by various diseases, such as osteoporosis, osteopenia, and osteomalacia. Nowadays, several methods are applied to protect bone health, including the use of hormonal and non-hormonal medications and supplements. However, certain drugs like glucocorticoids, thiazolidinediones, heparin, anticonvulsants, chemotherapy, and proton pump inhibitors can endanger bone health and cause bone loss. New studies are exploring the use of supplements, such as conjugated linoleic acid (CLA) and glucosamine, with fewer side effects during treatment. Various mechanisms have been proposed for the effects of CLA and glucosamine on bone structure, both direct and indirect. One mechanism that deserves special attention is the regulatory effect of RANKL/RANK/OPG on bone turnover. The RANKL/RANK/OPG pathway is considered a motive for osteoclast maturation and bone resorption. The cytokine system, consisting of the receptor activator of the nuclear factor (NF)-kB ligand (RANKL), its receptor RANK, and its decoy receptor, osteoprotegerin (OPG), plays a vital role in bone turnover. Over the past few years, researchers have observed the impact of CLA and glucosamine on the RANKL/RANK/OPG mechanism of bone turnover. However, no comprehensive study has been published on these supplements and their mechanism. To address this gap in knowledge, we have critically reviewed their potential effects. This review aims to assist in developing efficient treatment strategies and focusing future studies on these supplements.
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Affiliation(s)
| | - Mohanad Ali Abdulhadi
- Department of Medical Laboratory Techniques, Al-Maarif University College, Al-Anbar, Iraq
| | | | - Dumooa Falah
- National University of Science and Technology, Dhi Qar, Iraq
| | - Muna S Merza
- Prosthetic dental Techniques Department, Al-Mustaqbal University College, Babylon, 51001, Iraq
| | - Abbas F Almulla
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Ahmed Ali
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Ronak Taher Ali
- College of Medical Technology, Al-Kitab University, Kirkuk, Iraq
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Zhang B, Zhang J, Kuang L, Yao X, Wang Y, Shang H. Ultraviolet light C in promoting rapid healing of delayed wound union: A case report. Int J Surg Case Rep 2023; 112:108949. [PMID: 37826981 PMCID: PMC10667755 DOI: 10.1016/j.ijscr.2023.108949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 10/14/2023] Open
Abstract
INTRODUCTION AND IMPORTANCE The purpose of this case is to present a useful phototherapy for rapid healing of recalcitrant postoperative wound disunion due to implantation of allogeneic bone and metal. CASE PRESENTATION In this case, a middle-aged man was diagnosed as complex fracture of the left tibial plateau which caused movement loss, swelling and pain of the left knee. The patient's wound disunion was still present after been surgery for 26 days, with yellowish liquid persistently oozing out of the wound after several wound dressing. We treated the postoperative wound with ultraviolet light C (UVC) to promote wound healing. CLINICAL DISCUSSION Incision disunion is a common complication of surgery, which increases patients' hospital days. Prevention and treatment of wound disunion is one of the key considerations for perioperative management. CONCLUSION During 3-day consecutive UVC treatment, the yellowish wound exudate gradually reduced and disappeared. Subsequently, the non-healing postoperative wound scared over and healed rapidly. As a convenient, non-invasive, non-polluting and effectively physical therapy, UVC can promote rapid healing of recalcitrant wound disunion caused by implants in complex tibial plateau fracture.
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Affiliation(s)
- Bin Zhang
- Rehabilitation Department, Xingcheng Special Duty Sanatorium of Strategic Support Force, Xingcheng, China; Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China.
| | - Jiayi Zhang
- Rehabilitation Department, Xingcheng Special Duty Sanatorium of Strategic Support Force, Xingcheng, China
| | - Liang Kuang
- Department of Wound Repair and Rehabilitation Medicine, Center of Bone Metabolism and Repair, Laboratory for Prevention and Rehabilitation of Training Injuries, State Key Laboratory of Trauma, Burns and Combined Injury, Trauma Center, Research Institute of Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xi Yao
- Rehabilitation Department, Xingcheng Special Duty Sanatorium of Strategic Support Force, Xingcheng, China
| | - Yanhui Wang
- Department of Orthopaedics, 92493 Military Hospital of PLA, Huludao, China.
| | - Huijuan Shang
- Rehabilitation Department, Xingcheng Special Duty Sanatorium of Strategic Support Force, Xingcheng, China.
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Mayer Y, Khoury J, Horwitz J, Ginesin O, Canullo L, Gabay E, Giladi HZ. A novel nonsurgical therapy for peri-implantitis using focused pulsed electromagnetic field: A pilot randomized double-blind controlled clinical trial. Bioelectromagnetics 2023; 44:144-155. [PMID: 37655846 DOI: 10.1002/bem.22481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/06/2023] [Accepted: 07/18/2023] [Indexed: 09/02/2023]
Abstract
Pulsed electromagnetic field (PEMF) therapy modulates the immune response and is successfully used in orthopedics to treat osteoarthritis and improve bone regeneration. This may suggest that this treatment may consequently reduce peri-implant soft tissue inflammation and marginal bone loss. To compare clinical, radiographic, and immunological results following nonsurgical treatment for peri-implantitis with or without PEMF therapy. Patients with peri-implantitis were included: pocket probing depth (PPD) between 6 and 8 mm with bleeding on probing (BOP); crestal bone loss between 3 and 5 mm. A novel healing abutment that contained active (test) or inactive (control) PEMF was connected. PEMF was administered via the abutment at exposure ratio of 1/500-1/5000, intensity: 0.05-0.5 mT, frequency: 10-50 kHz for 30 days. Nonsurgical mechanical implant surface debridement was performed. Patients were examined at baseline, 1 and 3 months. Clinical assessment included: plaque index, BOP, PPD, recession, and bone crest level which was radiography measured. Samples of peri-implant crevicular fluid were taken to analyze interleukin-1β (IL-1β). Twenty-three patients (34 implants; 19 control, 15 test) were included. At the follow-up, mean crestal bone loss was lower in the test group at 1 and 3 months (2.48 mm vs. 3.73 mm, p < 0.05 and 2.39 vs. 3.37, p < 0.01). IL-1β levels were also lower in the test group at 2 weeks (72.86 pg/mL vs. 111.7, p < 0.05). Within all the limitation of this preliminary study, the test group improved clinical parameters after a short-term period compared to the control group.
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Affiliation(s)
- Yaniv Mayer
- Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus (RHCC), Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Juan Khoury
- Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus (RHCC), Haifa, Israel
| | - Jacob Horwitz
- Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus (RHCC), Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Ofir Ginesin
- Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus (RHCC), Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Luigi Canullo
- Department of Surgical Sciences (DISC), Division of Prosthodontics and Implant Prosthodontics, University of Genoa, Genova, Italy
| | - Eran Gabay
- Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus (RHCC), Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Hadar Z Giladi
- Department of Periodontology, School of Graduate Dentistry, Rambam Health Care Campus (RHCC), Haifa, Israel
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
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Khoury J, Giladi HZ, Ginesin O, Gabay E, Mayer Y. The influence of radio frequency-based toothbrush on the accumulation of calculus and periodontal health: A randomized double-blind controlled prospective study. Clin Exp Dent Res 2023; 9:574-585. [PMID: 37515446 PMCID: PMC10441598 DOI: 10.1002/cre2.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/10/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
OBJECTIVES The use of a toothbrush with radio frequency (RF) has shown to be of benefit regarding the reduction of plaque, calculus, and dental staining and improving teeth shade compared to conventional powered and manual toothbrushes. AIM To evaluate the efficacy of the RF toothbrush in the reduction of calculus accumulation and its effect on periodontal parameters as well as subject satisfaction as compared to an identical sham-tooth brush. MATERIALS AND METHODS Patients who are under a strict maintenance program were included. Patients were allocated to test (RF toothbrush) or control (sham) randomly and were examined at baseline, one and three months. Clinical photos were taken and a consequential calculus assessment via ImageJ software. Clinical assessment included the following: plaque index (PI), bleeding on probing (BOP), probing pocket depth (PPD), and recession (REC). Patient satisfaction was assessed via a questionnaire. RESULTS Fifty-eight patients (29 control, 29 test) were included. At baseline mean PPD, BOP, PI, REC, and calculus accumulation were similar between the groups. Mean buccal calculus was lower in the test group at one month 4.0% versus 6.7%, p < .05. Calculus accumulation within the groups was lower in the test group at 1 and 3 months when compared to baseline at the buccal aspect (2.8% vs. 8.9%, p < .05% and 3.8% vs. 8.9%, p < .05) and lingual aspect (6.7% vs. 16.5%, p < .05% and 8.9% vs. 16.5%, p < .05). No statistically significant results were found regarding periodontal parameters PPD, BOP, PI, and REC. No difference was found between groups regarding patient satisfaction. CONCLUSION RF seems to have an additive effect on preventing calculus accumulation on the buccal aspect of anterior mandibular teeth at 1 month. Nevertheless, at 3 months, no difference between the toothbrushes is seen regarding calculus formation and maintaining periodontal health (ClinicalTrials.gov, Identifier NCT04640857).
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Affiliation(s)
- Juan Khoury
- Department of Periodontology, School of Graduate DentistryRambam Health Care Campus (RHCC)HaifaIsrael
| | - Hadar Z. Giladi
- Department of Periodontology, School of Graduate DentistryRambam Health Care Campus (RHCC)HaifaIsrael
- Faculty of MedicineTechnion ‐ Israel Institute of TechnologyHaifaIsrael
| | - Ofir Ginesin
- Department of Periodontology, School of Graduate DentistryRambam Health Care Campus (RHCC)HaifaIsrael
- Faculty of MedicineTechnion ‐ Israel Institute of TechnologyHaifaIsrael
| | - Eran Gabay
- Department of Periodontology, School of Graduate DentistryRambam Health Care Campus (RHCC)HaifaIsrael
- Faculty of MedicineTechnion ‐ Israel Institute of TechnologyHaifaIsrael
| | - Yaniv Mayer
- Department of Periodontology, School of Graduate DentistryRambam Health Care Campus (RHCC)HaifaIsrael
- Faculty of MedicineTechnion ‐ Israel Institute of TechnologyHaifaIsrael
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9
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Flatscher J, Pavez Loriè E, Mittermayr R, Meznik P, Slezak P, Redl H, Slezak C. Pulsed Electromagnetic Fields (PEMF)-Physiological Response and Its Potential in Trauma Treatment. Int J Mol Sci 2023; 24:11239. [PMID: 37510998 PMCID: PMC10379303 DOI: 10.3390/ijms241411239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Environmental biophysical interactions are recognized to play an essential part in the human biological processes associated with trauma recovery. Many studies over several decades have furthered our understanding of the effects that Pulsed Electromagnetic Fields (PEMF) have on the human body, as well as on cellular and biophysical systems. These investigations have been driven by the observed positive clinical effects of this non-invasive treatment on patients, mainly in orthopedics. Unfortunately, the diversity of the various study setups, with regard to physical parameters, molecular and cellular response, and clinical outcomes, has made it difficult to interpret and evaluate commonalities, which could, in turn, lead to finding an underlying mechanistic understanding of this treatment modality. In this review, we give a birds-eye view of the vast landscape of studies that have been published on PEMF, presenting the reader with a scaffolded summary of relevant literature starting from categorical literature reviews down to individual studies for future research studies and clinical use. We also highlight discrepancies within the many diverse study setups to find common reporting parameters that can lead to a better universal understanding of PEMF effects.
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Affiliation(s)
- Jonas Flatscher
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
| | - Elizabeth Pavez Loriè
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
| | | | - Paul Meznik
- AUVA Trauma Center Vienna-Meidling, 1120 Vienna, Austria
| | - Paul Slezak
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
| | - Cyrill Slezak
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Department of Physics, Utah Valley University, Orem, UT 84058, USA
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10
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Peng L, Wu F, Cao M, Li M, Cui J, Liu L, Zhao Y, Yang J. Effects of different physical factors on osteogenic differentiation. Biochimie 2023; 207:62-74. [PMID: 36336107 DOI: 10.1016/j.biochi.2022.10.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 10/11/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
Osteoblasts are essential for bone formation and can perceive external mechanical stimuli, which are translated into biochemical responses that ultimately alter cell phenotypes and respond to environmental stimuli, described as mechanical transduction. These cells actively participate in osteogenesis and the formation and mineralisation of the extracellular bone matrix. This review summarises the basic physiological and biological mechanisms of five different physical stimuli, i.e. light, electricity, magnetism, force and sound, to induce osteogenesis; further, it summarises the effects of changing culture conditions on the morphology, structure and function of osteoblasts. These findings may provide a theoretical basis for further studies on bone physiology and pathology at the cytological level and will be useful in the clinical application of bone formation and bone regeneration technology.
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Affiliation(s)
- Li Peng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Fanzi Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Mengjiao Cao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Mengxin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Jingyao Cui
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Lijia Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China
| | - Yun Zhao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China.
| | - Jing Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Cariology and Endodontics West China Hospital of Stomatology, Sichuan University, China.
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11
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Wang J, Shang P. Static magnetic field: A potential tool of controlling stem cells fates for stem cell therapy in osteoporosis. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2023; 178:91-102. [PMID: 36596343 DOI: 10.1016/j.pbiomolbio.2022.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 12/10/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Osteoporosis is a kind of bone diseases characterized by dynamic imbalance of bone formation and bone absorption, which is prone to fracture, and seriously endangers human health. At present, there is a lack of highly effective drugs for it, and the existing measures all have some side effects. In recent years, mesenchymal stem cell therapy has brought a certain hope for osteoporosis, while shortcomings such as homing difficulty and unstable therapeutic effects limit its application widely. Therefore, it is extremely urgent to find effective and reliable means/drugs for adjuvant stem cell therapy or develop new research techniques. It has been reported that static magnetic fields(SMFs) has a certain alleviating and therapeutic effect on varieties of bone diseases, also promotes the proliferation and osteogenic differentiation of mesenchymal stem cells derived from different tissues to a certain extent. Basing on the above background, this article focuses on the key words "static/constant magnetic field, mesenchymal stem cell, osteoporosis", combined literature and relevant contents were studied to look forward that SMFs has unique advantages in the treatment of osteoporosis with mesenchymal stem cells, which can be used as an application tool to promote the progress of stem cell therapy in clinical application.
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Affiliation(s)
- Jianping Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China
| | - Peng Shang
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen, 518057, China; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China; Key Laboratory for Space Bioscience and Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, China.
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12
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Elexpuru-Zabaleta M, Lazzarini R, Tartaglione MF, Piva F, Ciarapica V, Marinelli Busilacchi E, Poloni A, Valentino M, Santarelli L, Bracci M. A 50 Hz magnetic field influences the viability of breast cancer cells 96 h after exposure. Mol Biol Rep 2023; 50:1005-1017. [PMID: 36378418 PMCID: PMC9889515 DOI: 10.1007/s11033-022-08069-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND The exposure of breast cancer to extremely low frequency magnetic fields (ELF-MFs) results in various biological responses. Some studies have suggested a possible cancer-enhancing effect, while others showed a possible therapeutic role. This study investigated the effects of in vitro exposure to 50 Hz ELF-MF for up to 24 h on the viability and cellular response of MDA-MB-231 and MCF-7 breast cancer cell lines and MCF-10A breast cell line. METHODS AND RESULTS The breast cell lines were exposed to 50 Hz ELF-MF at flux densities of 0.1 mT and 1.0 mT and were examined 96 h after the beginning of ELF-MF exposure. The duration of 50 Hz ELF-MF exposure influenced the cell viability and proliferation of both the tumor and nontumorigenic breast cell lines. In particular, short-term exposure (4-8 h, 0.1 mT and 1.0 mT) led to an increase in viability in breast cancer cells, while long and high exposure (24 h, 1.0 mT) led to a decrease in viability and proliferation in all cell lines. Cancer and normal breast cells exhibited different responses to ELF-MF. Mitochondrial membrane potential and reactive oxygen species (ROS) production were altered after ELF-MF exposure, suggesting that the mitochondria are a probable target of ELF-MF in breast cells. CONCLUSIONS The viability of breast cells in vitro is influenced by ELF-MF exposure at magnetic flux densities compatible with the limits for the general population and for workplace exposures. The effects are apparent after 96 h and are related to the ELF-MF exposure time.
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Affiliation(s)
- Maria Elexpuru-Zabaleta
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, 39011, Santander, Spain
| | - Raffaella Lazzarini
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Maria Fiorella Tartaglione
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Francesco Piva
- Department of Specialistic Clinical and Odontostomatological Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Veronica Ciarapica
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Elena Marinelli Busilacchi
- Section of Hematology, Department of Clinical and Molecular Science, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Antonella Poloni
- Section of Hematology, Department of Clinical and Molecular Science, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Matteo Valentino
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy
| | - Lory Santarelli
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy.
| | - Massimo Bracci
- Occupational Medicine, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, 60126, Ancona, Italy.
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13
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Playing with Biophysics: How a Symphony of Different Electromagnetic Fields Acts to Reduce the Inflammation in Diabetic Derived Cells. Int J Mol Sci 2023; 24:ijms24021754. [PMID: 36675268 PMCID: PMC9861282 DOI: 10.3390/ijms24021754] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/02/2022] [Accepted: 12/22/2022] [Indexed: 01/18/2023] Open
Abstract
Several factors, such as ischemia, infection and skin injury impair the wound healing process. One common pathway in all these processes is related to the reactive oxygen species (ROS), whose production plays a vital role in wound healing. In this view, several strategies have been developed to stimulate the activation of the antioxidative system, thereby reducing the damage related to oxidative stress and improving wound healing. For this purpose, complex magnetic fields (CMFs) are used in this work on fibroblast and monocyte cultures derived from diabetic patients in order to evaluate their influence on the ROS production and related wound healing properties. Biocompatibility, cytotoxicity, mitochondrial ROS production and gene expression have been evaluated. The results confirm the complete biocompatibility of the treatment and the lack of side effects on cell physiology following the ISO standard indication. Moreover, the results confirm that the CMF treatment induced a reduction in the ROS production, an increase in the macrophage M2 anti-inflammatory phenotype through the activation of miRNA 5591, a reduction in inflammatory cytokines, such as interleukin-1 (IL-1) and IL-6, an increase in anti-inflammatory ones, such as IL-10 and IL-12 and an increase in the markers related to improved wound healing such as collagen type I and integrins. In conclusion, our findings encourage the use of CMFs for the treatment of diabetic foot.
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14
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Gabetti S, Masante B, Cochis A, Putame G, Sanginario A, Armando I, Fiume E, Scalia AC, Daou F, Baino F, Salati S, Morbiducci U, Rimondini L, Bignardi C, Massai D. An automated 3D-printed perfusion bioreactor combinable with pulsed electromagnetic field stimulators for bone tissue investigations. Sci Rep 2022; 12:13859. [PMID: 35974079 PMCID: PMC9381575 DOI: 10.1038/s41598-022-18075-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/04/2022] [Indexed: 11/19/2022] Open
Abstract
In bone tissue engineering research, bioreactors designed for replicating the main features of the complex native environment represent powerful investigation tools. Moreover, when equipped with automation, their use allows reducing user intervention and dependence, increasing reproducibility and the overall quality of the culture process. In this study, an automated uni-/bi-directional perfusion bioreactor combinable with pulsed electromagnetic field (PEMF) stimulation for culturing 3D bone tissue models is proposed. A user-friendly control unit automates the perfusion, minimizing the user dependency. Computational fluid dynamics simulations supported the culture chamber design and allowed the estimation of the shear stress values within the construct. Electromagnetic field simulations demonstrated that, in case of combination with a PEMF stimulator, the construct can be exposed to uniform magnetic fields. Preliminary biological tests on 3D bone tissue models showed that perfusion promotes the release of the early differentiation marker alkaline phosphatase. The histological analysis confirmed that perfusion favors cells to deposit more extracellular matrix (ECM) with respect to the static culture and revealed that bi-directional perfusion better promotes ECM deposition across the construct with respect to uni-directional perfusion. Lastly, the Real-time PCR results of 3D bone tissue models cultured under bi-directional perfusion without and with PEMF stimulation revealed that the only perfusion induced a ~ 40-fold up-regulation of the expression of the osteogenic gene collagen type I with respect to the static control, while a ~ 80-fold up-regulation was measured when perfusion was combined with PEMF stimulation, indicating a positive synergic pro-osteogenic effect of combined physical stimulations.
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Affiliation(s)
- Stefano Gabetti
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, Turin, Italy
| | - Beatrice Masante
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy
| | - Andrea Cochis
- Laboratory of Biomedical Materials, Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Department of Health Sciences, University of Piemonte Orientale UPO, Novara, Italy
| | - Giovanni Putame
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, Turin, Italy
| | - Alessandro Sanginario
- Department of Electronics and Telecommunications, Politecnico di Torino, Turin, Italy
| | - Ileana Armando
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Department of Information Engineering, University of Brescia, Brescia, Italy
| | - Elisa Fiume
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Alessandro Calogero Scalia
- Laboratory of Biomedical Materials, Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Department of Health Sciences, University of Piemonte Orientale UPO, Novara, Italy
| | - Farah Daou
- Laboratory of Biomedical Materials, Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Department of Health Sciences, University of Piemonte Orientale UPO, Novara, Italy
| | - Francesco Baino
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | | | - Umberto Morbiducci
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, Turin, Italy
| | - Lia Rimondini
- Laboratory of Biomedical Materials, Center for Translational Research on Autoimmune and Allergic Disease-CAAD, Department of Health Sciences, University of Piemonte Orientale UPO, Novara, Italy
| | - Cristina Bignardi
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.,Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, Turin, Italy
| | - Diana Massai
- PolitoBIOMed Lab, Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy. .,Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, Turin, Italy.
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15
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Improved osteogenic differentiation by extremely low electromagnetic field exposure: possible application for bone engineering. Histochem Cell Biol 2022; 158:369-381. [PMID: 35751679 PMCID: PMC9512759 DOI: 10.1007/s00418-022-02126-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2022] [Indexed: 11/21/2022]
Abstract
Human periodontal ligament mesenchymal stem cells (hPDLSCs) are a promising cell type model for regenerative medicine applications due to their anti-inflammatory, immunomodulatory and non-tumorigenic potentials. Extremely low-frequency electromagnetic fields (ELF-EMF) are reported to affect biological properties such as cell proliferation and differentiation and modulate gene expression profile. In this study, we investigated the effects of an intermittent ELF-EMF exposure (6 h/day) for the standard differentiation period (28 days) and for 10 days in hPDLSCs in the presence or not of osteogenic differentiation medium (OM). We evaluated cell proliferation, de novo calcium deposition and osteogenic differentiation marker expression in sham and ELF-EMF-exposed cells. After ELF-EMF exposure, compared with sham-exposed, an increase in cell proliferation rate (p < 0.001) and de novo calcium deposition (p < 0.001) was observed after 10 days of exposure. Real-time PCR and Western blot results showed that COL1A1 and RUNX-2 gene expression and COL1A1, RUNX-2 and OPN protein expression were upregulated respectively in the cells exposed to ELF-EMF exposure along with or without OM for 10 days. Altogether, these results suggested that the promotion of osteogenic differentiation is more efficient in ELF-EMF-exposed hPDLSCs. Moreover, our analyses indicated that there is an early induction of hPDLSC differentiation after ELF-EMF application.
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16
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Effects of Magnetic Stimulation on Dental Implant Osseointegration: A Scoping Review. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This PRISMA-ScR driven scoping review aims to evaluate the influence of magnetic field stimulation on dental implant osseointegration. Seven databases were screened adopting ad-hoc strings. All clinical and preclinical studies analyzing the effects of magnetic fields on dental implant osseointegration were included. From 3124 initial items, on the basis of the eligibility criteria, 33 articles, regarding both Pulsed ElectroMagnetic Fields (PEMF) and Static magnetic Fields from permanent Magnets (SFM) were finally included and critically analyzed. In vitro studies showed a positive effect of PEMF, but contrasting effects of SFM on bone cell proliferation, whereas cell adhesion and osteogenic differentiation were induced by both types of stimulation. In vivo studies showed an increased bone-to-implant contact rate in different animal models and clinical studies revealed positive effects on implant stability, under magnetic stimulation. In conclusion, although positive effects of magnetic exposure on osteogenesis activity and osseointegration emerged, this scoping review highlighted the need for further preclinical and clinical studies. More standardized designs, accurate choice of stimulation parameters, adequate methods of evaluation of the outcomes, greater sample size and longer follow-ups are needed to clearly assess the effect of magnetic fields on dental implant osseointegration.
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17
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Osteogenesis Modulation: Induction of Mandibular Bone Growth in Adults by Electrical Field for Aesthetic Purposes. Aesthetic Plast Surg 2022; 46:197-206. [PMID: 34622330 PMCID: PMC8831273 DOI: 10.1007/s00266-021-02600-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/12/2021] [Indexed: 10/25/2022]
Abstract
BACKGROUND A new technique in plastic surgery termed Osteogenesis Modulation is described. This technique uses a surgically implanted, battery-operated medical device to deliver customized electrical pulses to produce mandibular bone growth. This device was designed to be a temporary, nonpermanent implant. The purpose of this study was to review both the safety and efficacy of Osteogenesis Modulation. METHODS This study comprises two phases. Phase I involved experimental technology development and animal experiments. Phase II included technology development for clinical use and a clinical trial. In Phase II, four patients with a diagnosis of mandibular hypoplasia and microgenia underwent surgical implantation of the novel medical device over the chin bone. Once a satisfactory change of contour of mandibular bone was achieved, the devices were removed. In all patients, the devices were left in place for 12 months, then surgically removed under local anesthesia. Preoperative and long-term postoperative cephalometric controls were done. RESULTS In all patients, symmetrical mandibular bone growth was observed with good-to-excellent aesthetic results. The overall follow-up period was 39 months. Cephalometric controls taken 3 to 6 months after the device removal showed an average increase in mandible length of 5.26mm (range, 2.83-7.60mm) CONCLUSIONS: Preliminary clinical results suggest that Osteogenesis Modulation is a safe, minimally invasive, and effective alternative treatment for the correction of mandibular hypoplasia in selected cases. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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18
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Li Y, Yang Y, Wang M, Zhang X, Bai S, Lu X, Li Y, Waldorff EI, Zhang N, Lee WYW, Li G. High slew rate pulsed electromagnetic field enhances bone consolidation and shortens daily treatment duration in distraction osteogenesis. Bone Joint Res 2021; 10:767-779. [PMID: 34872332 PMCID: PMC8696558 DOI: 10.1302/2046-3758.1012.bjr-2021-0274.r1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Aims Distraction osteogenesis (DO) is a useful orthopaedic procedure employed to lengthen and reshape bones by stimulating bone formation through controlled slow stretching force. Despite its promising applications, difficulties are still encountered. Our previous study demonstrated that pulsed electromagnetic field (PEMF) treatment significantly enhances bone mineralization and neovascularization, suggesting its potential application. The current study compared a new, high slew rate (HSR) PEMF signal, with different treatment durations, with the standard Food and Drug Administration (FDA)-approved signal, to determine if HSR PEMF is a better alternative for bone formation augmentation. Methods The effects of a HSR PEMF signal with three daily treatment durations (0.5, one, and three hours/day) were investigated in an established rat DO model with comparison of an FDA-approved classic signal (three hrs/day). PEMF treatments were applied to the rats daily for 35 days, starting from the distraction phase until termination. Radiography, micro-CT (μCT), biomechanical tests, and histological examinations were employed to evaluate the quality of bone formation. Results All rats tolerated the treatment well and no obvious adverse effects were found. By comparison, the HSR signal (three hrs/day) treatment group achieved the best healing outcome, in that endochondral ossification and bone consolidation were enhanced. In addition, HSR signal treatment (one one hr/day) had similar effects to treatment using the classic signal (three three hrs/day), indicating that treatment duration could be significantly shortened with the HSR signal. Conclusion HSR signal may significantly enhance bone formation and shorten daily treatment duration in DO, making it a potential candidate for a new clinical protocol for patients undergoing DO treatments. Cite this article: Bone Joint Res 2021;10(12):767–779.
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Affiliation(s)
- Yucong Li
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Yongkang Yang
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Ming Wang
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Xiaoting Zhang
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Shanshan Bai
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Xuan Lu
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Yuan Li
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Erik I Waldorff
- Research & Clinical Affairs, Orthofix Medical Inc, Lewisville, Texas, USA
| | - Nianli Zhang
- Research & Clinical Affairs, Orthofix Medical Inc, Lewisville, Texas, USA
| | - Wayne Yuk-Wai Lee
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Gang Li
- Department of Orthopaedic and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
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19
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Yan J, Liu C, Tu C, Zhang R, Tang X, Li H, Wang H, Ma Y, Zhang Y, Wu H, Sheng G. Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits. Stem Cell Res Ther 2021; 12:572. [PMID: 34774092 PMCID: PMC8590294 DOI: 10.1186/s13287-021-02638-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cartilage damage is a common medical issue in clinical practice. Complete cartilage repair remains a significant challenge owing to the inferior quality of regenerative tissue. Safe and non-invasive magnetic therapy combined with tissue engineering to repair cartilage may be a promising breakthrough. METHODS In this study, a composite scaffold made of Hydroxyapatite-Collagen type-I (HAC) and PLGA-PEG-PLGA thermogel was produced to match the cartilage and subchondral layers in osteochondral defects, respectively. Bone marrow mesenchymal stem cells (BMSC) encapsulated in the thermogel were stimulated by an electromagnetic field (EMF). Effect of EMF on the proliferation and chondrogenic differentiation potential was evaluated in vitro. 4 mm femoral condyle defect was constructed in rabbits. The scaffolds loaded with BMSCs were implanted into the defects with or without EMF treatment. Effects of the combination treatment of the EMF and composite scaffold on rabbit osteochondral defect was detected in vivo. RESULTS In vitro experiments showed that EMF could promote proliferation and chondrogenic differentiation of BMSCs partly by activating the PI3K/AKT/mTOR and Wnt1/LRP6/β-catenin signaling pathway. In vivo results further confirmed that the scaffold with EMF enhances the repair of osteochondral defects in rabbits, and, in particular, cartilage repair. CONCLUSION Hydrogel-Hydroxyapatite-Monomeric Collagen type-I scaffold with low-frequency EMF treatment has the potential to enhance osteochondral repair.
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Affiliation(s)
- Jiyuan Yan
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China
| | - Chaoxu Liu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China
| | - Chang Tu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Ruizhuo Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China
| | - Xiangyu Tang
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Hao Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China
| | - Huaixi Wang
- Department of Spine and Spinal Cord Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Henan, Zhengzhou, People's Republic of China
| | - Yongzhuang Ma
- Department of Orthopedics, Shanxi Bethune Hospital, Taiyuan, Shanxi, People's Republic of China
| | - Yingchi Zhang
- Department of Traumatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China.
| | - Hua Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China.
| | - Gaohong Sheng
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095, Wuhan, 430030, Hubei, People's Republic of China.
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20
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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] [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.
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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.)
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21
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Hersh DS, Anderson HJ, Woodworth GF, Martin JE, Khan YM. Bone Flap Resorption in Pediatric Patients Following Autologous Cranioplasty. Oper Neurosurg (Hagerstown) 2021; 20:436-443. [PMID: 33469664 DOI: 10.1093/ons/opaa452] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/06/2020] [Indexed: 01/31/2023] Open
Abstract
Following a decompressive craniectomy, the autologous bone flap is generally considered the reconstructive material of choice in pediatric patients. Replacement of the original bone flap takes advantage of its natural biocompatibility and the associated low risk of rejection, as well as the potential to reintegrate with the adjacent bone and subsequently grow with the patient. However, despite these advantages and unlike adult patients, the replaced calvarial bone is more likely to undergo delayed bone resorption in pediatric patients, ultimately requiring revision surgery. In this review, we describe the materials that are currently available for pediatric cranioplasty, the advantages and disadvantages of autologous calvarial replacement, the incidence and classification of bone resorption, and the clinical risk factors for bone flap resorption that have been identified to date.
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Affiliation(s)
- David S Hersh
- Division of Neurosurgery, Connecticut Children's, Hartford, Connecticut.,Department of Surgery, UConn School of Medicine, Farmington, Connecticut.,Department of Pediatrics, UConn School of Medicine, Farmington, Connecticut
| | - Hanna J Anderson
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut.,Department of Biomedical Engineering, University of Connecticut School of Engineering, Storrs, Connecticut
| | - Graeme F Woodworth
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, Maryland.,Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jonathan E Martin
- Division of Neurosurgery, Connecticut Children's, Hartford, Connecticut.,Department of Surgery, UConn School of Medicine, Farmington, Connecticut
| | - Yusuf M Khan
- Connecticut Convergence Institute for Translation in Regenerative Engineering, UConn Health, Farmington, Connecticut.,Department of Biomedical Engineering, University of Connecticut School of Engineering, Storrs, Connecticut.,Department of Orthopedic Surgery, UConn School of Medicine, Farmington, Connecticut
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22
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Pulsed Electromagnetic Field Stimulation in Osteogenesis and Chondrogenesis: Signaling Pathways and Therapeutic Implications. Int J Mol Sci 2021; 22:ijms22020809. [PMID: 33467447 PMCID: PMC7830993 DOI: 10.3390/ijms22020809] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/30/2020] [Accepted: 01/11/2021] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are the main cell players in tissue repair and thanks to their self-renewal and multi-lineage differentiation capabilities, they gained significant attention as cell source for tissue engineering (TE) approaches aimed at restoring bone and cartilage defects. Despite significant progress, their therapeutic application remains debated: the TE construct often fails to completely restore the biomechanical properties of the native tissue, leading to poor clinical outcomes in the long term. Pulsed electromagnetic fields (PEMFs) are currently used as a safe and non-invasive treatment to enhance bone healing and to provide joint protection. PEMFs enhance both osteogenic and chondrogenic differentiation of MSCs. Here, we provide extensive review of the signaling pathways modulated by PEMFs during MSCs osteogenic and chondrogenic differentiation. Particular attention has been given to the PEMF-mediated activation of the adenosine signaling and their regulation of the inflammatory response as key player in TE approaches. Overall, the application of PEMFs in tissue repair is foreseen: (1) in vitro: to improve the functional and mechanical properties of the engineered construct; (2) in vivo: (i) to favor graft integration, (ii) to control the local inflammatory response, and (iii) to foster tissue repair from both implanted and resident MSCs cells.
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