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Lai HY, Fan KC, Lee YH, Lew WZ, Lai WY, Lee SY, Chang WJ, Huang HM. Using a static magnetic field to attenuate the severity in COVID-19-invaded lungs. Sci Rep 2024; 14:16830. [PMID: 39039227 PMCID: PMC11263632 DOI: 10.1038/s41598-024-67806-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: 01/30/2024] [Accepted: 07/16/2024] [Indexed: 07/24/2024] Open
Abstract
Two important factors affecting the progress of coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are the S-protein binding function of ACE2 receptors and the membrane fluidity of host cells. This study aimed to evaluate the effect of static magnetic field (SMF) on S-protein/ACE2 binding and cellular membrane fluidity of lung cells, and was performed in vitro using a Calu-3 cell model and in vivo using an animal model. The ability of ACE2 receptors to bind to SARS-CoV-2 spike protein on host cell surfaces under SMF stimulation was evaluated using fluorescence images. Host lung cell membrane fluidity was tested using fluorescence polarization to determine the effects of SMF. Our results indicate that 0.4 T SMF can affect binding between S-protein and ACE2 receptors and increase Calu-3 cell membrane fluidity, and that SMF exposure attenuates LPS-induced alveolar wall thickening in mice. These results may be of value for developing future non-contact, non-invasive, and low side-effect treatments to reduce disease severity in COVID-19-invaded lungs.
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Affiliation(s)
- Hsuan-Yu Lai
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Kuo-Cheng Fan
- Department of Dentistry, Taipei Medical University Wan Fang Hospital, 11696, Taipei, Taiwan
| | - Yen-Hua Lee
- Department of Animal Science, National Pingtung University of Science and Technology, 912301, Pingtung, Taiwan
| | - Wei-Zhen Lew
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Wei-Yi Lai
- Department of Medical Research, Taipei Veterans General Hospital, 112062, Taipei, Taiwan
| | - Sheng-Yang Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Dentistry, Taipei Medical University Wan Fang Hospital, 11696, Taipei, Taiwan
| | - Wei-Jen Chang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Haw-Ming Huang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
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Static magnetic field attenuates lipopolysaccharide-induced inflammation in pulp cells by affecting cell membrane stability. ScientificWorldJournal 2015; 2015:492683. [PMID: 25884030 PMCID: PMC4391652 DOI: 10.1155/2015/492683] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 08/28/2014] [Indexed: 12/02/2022] Open
Abstract
One of the causes of dental pulpitis is lipopolysaccharide- (LPS-) induced inflammatory response. Following pulp tissue inflammation, odontoblasts, dental pulp cells (DPCs), and dental pulp stem cells (DPSCs) will activate and repair damaged tissue to maintain homeostasis. However, when LPS infection is too serious, dental repair is impossible and disease may progress to irreversible pulpitis. Therefore, the aim of this study was to examine whether static magnetic field (SMF) can attenuate inflammatory response of dental pulp cells challenged with LPS. In methodology, dental pulp cells were isolated from extracted teeth. The population of DPSCs in the cultured DPCs was identified by phenotypes and multilineage differentiation. The effects of 0.4 T SMF on DPCs were observed through MTT assay and fluorescent anisotropy assay. Our results showed that the SMF exposure had no effect on surface markers or multilineage differentiation capability. However, SMF exposure increases cell viability by 15%. In addition, SMF increased cell membrane rigidity which is directly related to higher fluorescent anisotropy. In the LPS-challenged condition, DPCs treated with SMF demonstrated a higher tolerance to LPS-induced inflammatory response when compared to untreated controls. According to these results, we suggest that 0.4 T SMF attenuates LPS-induced inflammatory response to DPCs by changing cell membrane stability.
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Lai WY, Huang YC, Chang WJ, Wang HT, Fong TH, Lin CT, Huang HM. Static magnetic field attenuates lipopolysaccharide-induced multiple organ failure: A histopathologic study in mice. Int J Radiat Biol 2015; 91:135-41. [DOI: 10.3109/09553002.2015.959669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Juhász M, Nagy VL, Székely H, Kocsis D, Tulassay Z, László JF. Influence of inhomogeneous static magnetic field-exposure on patients with erosive gastritis: a randomized, self- and placebo-controlled, double-blind, single centre, pilot study. J R Soc Interface 2014; 11:20140601. [PMID: 25008086 PMCID: PMC4233709 DOI: 10.1098/rsif.2014.0601] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 06/13/2014] [Indexed: 01/22/2023] Open
Abstract
This pilot study was devoted to the effect of static magnetic field (SMF)-exposure on erosive gastritis. The randomized, self- and placebo-controlled, double-blind, pilot study included 16 patients of the 2nd Department of Internal Medicine, Semmelweis University diagnosed with erosive gastritis. The instrumental analysis followed a qualitative (pre-intervention) assessment of the symptoms by the patient: lower heartburn (in the ventricle), upper heartburn (in the oesophagus), epigastric pain, regurgitation, bloating and dry cough. Medical diagnosis included a double-line upper panendoscopy followed by 30 min local inhomogeneous SMF-exposure intervention at the lower sternal region over the stomach with peak-to-peak magnetic induction of 3 mT and 30 mT m(-1) gradient at the target site. A qualitative (post-intervention) assessment of the same symptoms closed the examination. Sham- or SMF-exposure was used in a double-blind manner. The authors succeeded in justifying the clinically and statistically significant beneficial effect of the SMF- over sham-exposure on the symptoms of erosive gastritis, the average effect of inhibition was 56% by p = 0.001, n = 42 + 96. This pilot study was aimed to encourage gastroenterologists to test local, inhomogeneous SMF-exposure on erosive gastritis patients, so this intervention may become an evidence-based alternative or complementary method in the clinical use especially in cases when conventional therapy options are contraindicated.
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Affiliation(s)
- Márk Juhász
- 2nd Department of Internal Medicine, Semmelweis University, Budapest, Szentkirályi u. 46, 1088, Hungary
| | - Viktor L Nagy
- 2nd Department of Internal Medicine, Semmelweis University, Budapest, Szentkirályi u. 46, 1088, Hungary
| | - Hajnal Székely
- 2nd Department of Internal Medicine, Semmelweis University, Budapest, Szentkirályi u. 46, 1088, Hungary
| | - Dorottya Kocsis
- 2nd Department of Internal Medicine, Semmelweis University, Budapest, Szentkirályi u. 46, 1088, Hungary
| | - Zsolt Tulassay
- 2nd Department of Internal Medicine, Semmelweis University, Budapest, Szentkirályi u. 46, 1088, Hungary
| | - János F László
- e-Comers LLC, Csejtei u. 1-3, Budapest 1025, Hungary Department of Computer Science, University of Debrecen, Kassai út 26, Debrecen 4028, Hungary
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Vergallo C, Dini L, Szamosvölgyi Z, Tenuzzo BA, Carata E, Panzarini E, László JF. In vitro analysis of the anti-inflammatory effect of inhomogeneous static magnetic field-exposure on human macrophages and lymphocytes. PLoS One 2013; 8:e72374. [PMID: 23991101 PMCID: PMC3753352 DOI: 10.1371/journal.pone.0072374] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 07/09/2013] [Indexed: 11/24/2022] Open
Abstract
The effect of inhomogeneous static magnetic field (SMF)-exposure on the production of different cytokines from human peripheral blood mononuclear cells (PMBC), i.e., lymphocytes and macrophages, was tested in vitro. Some cultures were activated with lipopolysaccharide (LPS) at time point −3 h and were either left alone (positive control) or exposed to SMF continuously from 0 until 6, 18, or 24 h. The secretion of interleukin IL-6, IL-8, tumor necrosis factor TNF-α, and IL-10 was tested by ELISA. SMF-exposure caused visible morphological changes on macrophages as well as on lymphocytes, and also seemed to be toxic to lymphocytes ([36.58; 41.52]%, 0.308≤p≤0.444), but not to macrophages (<1.43%, p≥0.987). Analysis of concentrations showed a significantly reduced production of pro-inflammatory cytokines IL-6, IL-8, and TNF-α from macrophages compared to negative control ([56.78; 87.52]%, p = 0.031) and IL-6 compared to positive control ([45.15; 56.03]%, p = 0.035). The production of anti-inflammatory cytokine IL-10 from macrophages and from lymphocytes was enhanced compared to negative control, significantly from lymphocytes ([−183.62; −28.75]%, p = 0.042). The secretion of IL-6 from lymphocytes was significantly decreased compared to positive control ([−115.15; −26.84]%, p = 0.039). This massive in vitro evidence supports the hypotheses that SMF-exposure (i) is harmful to lymphocytes in itself, (ii) suppresses the release of pro-inflammatory cytokines IL-6, IL-8, and TNF-α, and (iii) assists the production of anti-inflammatory cytokine IL-10; thus providing a background mechanism of the earlier in vivo demonstrated anti-inflammatory effects of SMF-exposure.
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Affiliation(s)
- Cristian Vergallo
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
| | - Luciana Dini
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
- * E-mail:
| | | | - Bernardetta Anna Tenuzzo
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
| | - Elisabetta Carata
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
| | - Elisa Panzarini
- Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy
| | - János F. László
- Department of Computer Science, University of Debrecen, Debrecen, Hungary
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Shen LK, Huang HM, Yang PC, Huang YK, Wang PDY, Leung TK, Chen CJ, Chang WJ. A static magnetic field attenuates lipopolysaccharide-induced neuro-inflammatory response via IL-6-mediated pathway. Electromagn Biol Med 2013; 33:132-8. [PMID: 23781996 DOI: 10.3109/15368378.2013.794734] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An effective method for controlling brain damage and neurodegeneration caused by inflammation remains elusive. Down-expression of the lipopolysaccharide (LPS)-induced inflammatory cytokines resulting in endotoxin tolerance is reported as an alternative anti-infection treatment. Nonetheless, because the dosage and action site are hard to control, endotoxin tolerance caused by low-dose LPS injection in brain tissue may induce side effects. The aim of this study was to test the hypothesis that static magnetic fields (SMF) stimulate endotoxin tolerance in brain tissue. In this study, survival rate and pathological changes in brain tissues of LPS-challenged mice were examined with and without SMF treatment. In addition, the effects of SMF exposure on growth rate and cytokine expression of LPS-challenged BV-2 microglia cells were monitored. Our results showed that SMF pre-exposure had positive effects on the survival rate and histological outcomes of LPS-treated mice. Furthermore, SMF exposure significantly decreased IL-6 expression in BV-2 cells (p < 0.05) by a phenomenon similar to endotoxin tolerance. We suggest that SMF has potential as an alternative simulation source for controlling LPS-induced excess neuro-inflammatory response.
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Affiliation(s)
- Li-Kuo Shen
- Department of Radiology, Shuang Ho Hospital, Taipei Medical University , New Taipei City , Taiwan
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Salehi I, Sani KG, Zamani A. Exposure of rats to extremely low-frequency electromagnetic fields (ELF-EMF) alters cytokines production. Electromagn Biol Med 2012; 32:1-8. [PMID: 23046051 DOI: 10.3109/15368378.2012.692343] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Investigations indicate a potential link between exposure to extremely low-frequency electromagnetic field (ELF-EMF) and some cancers. Carcinogenesis of ELF-EMF may be mediated by effect on the immune system. During an immune response, naïve T cells differentiate to effector type 1 helper T cells (T(H)1), T(H)2, or T(H)17 subsets according to existence of different cytokines and T(H)1 is important in defense against tumors. Therefore, it will be reasonable to test whether ELF-EMF can change cytokines like interferon gamma (IFN-γ), interleukin-4 (IL-4), IL-6, and IL-12 that regulate T(H)1/T(H)2/T(H)17 balance. Forty adult male rats were randomly separated into ELF-EMF-exposed and sham-exposed control groups. The ELF-EMF group was exposed to a flux density of 100 μT, frequency 50 Hz, 2 h/day for 3 months. The controls were placed in identical chamber without ELF-EMF. The results showed there were no significant differences between the mean mass of rats, thymuses, and spleens in ELF-EMF exposed group compared with controls. Serum IL-12 level was decreased from 418 ± 47 pg/ml in controls to 300 ± 23 pg/ml (p < 0.05) in ELF-EMF-exposed group. Phytohemagglutinin activated of in vitro production of IL-6 by the whole spleen culture (1356 ± 92 pg/ml) and total blood culture (418 ± 40 pg/ml) of ELF-EMF-exposed rats were higher (p < 0.001) comparing with controls (905 ± 74 pg/ml), (182 ± 26 pg/ml), respectively. However, the levels of IFN-γ, IL-4, and IL-6 of serum and IFN-γ, IL-4, and IL-12 in spleen culture and total blood culture of two groups were not significantly different. It seems that ELF-EMF may change T(H)1/T(H)2/T(H)17 balance toward down regulation of T(H)1 and upregulation T(H)17 type responses.
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Affiliation(s)
- Iraj Salehi
- Department of Physiology, School of Paramedical Sciences, Hamadan University of Medical Sciences , Hamadan , Iran
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László JF, Farkas P, Reiczigel J, Vágó P. Effect of local exposure to inhomogeneous static magnetic field on stomatological pain sensation – a double-blind, randomized, placebo-controlled study. Int J Radiat Biol 2012; 88:430-8. [DOI: 10.3109/09553002.2012.661916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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László JF, Pórszász R. Exposure to static magnetic field delays induced preterm birth occurrence in mice. Am J Obstet Gynecol 2011; 205:362.e26-31. [PMID: 21704960 DOI: 10.1016/j.ajog.2011.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 04/08/2011] [Accepted: 05/05/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE The purpose of this study was to demonstrate that daily 40-minute whole body exposure to an inhomogeneous static magnetic field (SMF) prolongs induced preterm birth (PTB) in mice. STUDY DESIGN The murine model for PTB induction was performed by the administration of 25 μg/animal lipopolysaccharide (LPS) intraperitoneally. The applied SMF was an inhomogeneous gradient field with 2.8-476.7 millitesla peak-to-peak magnetic induction range by 10 mm lateral periodicity. During SMF exposure, mice were free to move in their cage. RESULTS The fetal development and the delivery were normal in animals that were exposed to SMF but not treated with LPS. SMF in these cases did not influence the term of delivery. In LPS-challenged animals, SMF exposure prolonged the time of PTB occurrence from 17.43 h (n = 7) to 21.93 h (n = 15) after the challenge (P < .05). CONCLUSION Exposure to inhomogeneous SMF may have a valuable effect in the prevention of PTB and may have clinical relevance to humans.
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László JF, Szilvási J, Fényi A, Szalai A, Gyires K, Pórszász R. Daily exposure to inhomogeneous static magnetic field significantly reduces blood glucose level in diabetic mice. Int J Radiat Biol 2010; 87:36-45. [DOI: 10.3109/09553002.2010.518200] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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