1
|
Ben Ghorbal S, Werhani R, Abdelwaheb C. Effects of certain physical stresses on the composition of the membrane of bacteria implicated in food and environmental contamination. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:408-418. [PMID: 36455161 DOI: 10.1080/09603123.2022.2151575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Bacterial membranes are implicated in the adaptation process of bacteria to numerous environmental conditions. In this context, our aim was to explain the consequences of a few physical stressor factors, like UV radiations and magnetic fields underlying the structural adaptation of cellular membranes to physical factors. The goal was also to review the state of the art about the link between membrane composition and bacterial resistance. According to comparative studies between ionizing γ-radiation, non-ionizing UVc radiations and Static Magnetic Field SMF, the response of some Gram negative bacteria appears to be generalized and was manifested by a membrane unsaturation, because of a production peak of unsaturated fatty acids. However, disturbances found inside the membrane, after UVB and Pulsed Electric Field (PEF) exposure were marked by a lower unsaturated fatty acids rate. This result is not concordant to disturbance seen after UVC treatment, even if the treatment is by UV radiation.
Collapse
Affiliation(s)
- SalmaKloula Ben Ghorbal
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux Usées, Technopole Borj Cedria, Soliman, Tunisia
| | - Rim Werhani
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux Usées, Technopole Borj Cedria, Soliman, Tunisia
| | - Chatti Abdelwaheb
- Laboratoire de Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux Usées, Technopole Borj Cedria, Soliman, Tunisia
- Unite de Biochimie des lipides et interactions des macromolécules en Biologie, Laboratoire de Biochimie et biologie moléculaire, Faculté des Sciences de Bizerte, Bizerte, Tunisia
| |
Collapse
|
2
|
The effects of Acyclovir administration to NCI-H1975 non-small cell lung cancer cells. Toxicol In Vitro 2021; 79:105301. [PMID: 34923092 DOI: 10.1016/j.tiv.2021.105301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/12/2022]
Abstract
The biochemical mechanisms by which the antiviral drug Acyclovir (ACV) may induce anticancer effects even without detecting human herpesviruses (HHVs) are still poorly understood. Herein, we investigated for the first time how NCI-H1975 non-small cell lung cancer cells responded in vitro to ACV administration by exploring mitochondrial damage and apoptosis induction. We confirmed ACV ability to cause the inhibition of cancer cell growth even without detecting intracellular HHVs; the drug also significantly inhibited the colony formation capacity of NCI-H1975 cells. Cell cycle analysis revealed an increase of the sub-G1 hypodiploid peak after ACV treatment; the activation of caspase-3 and the presence of DNA laddering sustained the capacity of the drug to induce apoptotic cell death. Regarding mitochondrial toxicity, a reduction of mitochondrial membrane potential, altered mitochondrial size and shape, and mtDNA damage were found after ACV administration. Furthermore, an increment of intracellular reactive oxygen species levels as well as the upregulation of NudT3 involved in DNA repair mechanisms were observed. Altogether, these findings suggest that mitochondria may be possible initial targets and/or sites of ACV cytotoxicity within cancer cells in the absence of intracellular HHVs.
Collapse
|
3
|
Xiong X, Liu Y, Zhang J, Wang S, Li L, Gao M. Mutational analysis of MpPhy reveals magnetoreception and photosensitivity involvement in secondary metabolites biosynthesis in Monascus purpureus. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 217:112164. [PMID: 33676287 DOI: 10.1016/j.jphotobiol.2021.112164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 02/04/2021] [Accepted: 02/17/2021] [Indexed: 11/16/2022]
Abstract
Light or low frequency magnetic field (LF-MF) as one of the cultivation environments affects secondary metabolites (SMs) production of M. purpureus. Phytochrome (Phy) is a hybrid histidine kinase possessing dual properties of photoreceptor and kinase to sense red and far-red light. The interaction effects of LF-MF and light on SMs of M. purpureus was investigated by knocking out the Phy-like gene in M. purpureus (MpPhy) by homologous recombination. A MpPhy-deletion (ΔMpPhy) strain produced less Monascus pigments (MPs) and monacolin K (mon K) than the wild-type (WT) strain and reduced citrinin production by 78.3% on 10th day but didn't affect the biomass. These results indicated that the MpPhy gene is involved in SMs biosynthesis of M. purpureus. MPs production in WT was decreased significantly when the inoculum was exposed to white/blue/green/red light (500 Lux). But it in ΔMpPhy was no significant difference when exposed to white/red light. The colony size of ΔMpPhy was smaller on potato dextrose agar media containing 0.01% SDS. These results indicated that the deletion of MpPhy gene affected the aerial hyphae and increased sensitivity to cell membrane stress but decreased sensitivity to red light. The inoculum of both WT and ΔMpPhy was exposure to the LF-MF (50 Hz). The accumulation of WT secondary metabolites was not changed, while SMs production of ΔMpPhy was significantly enhanced under exposed to 2.0 mT LF-MF. This indicated that the decrease of SMs caused by the deletion of MpPhy gene was restored by LF-MF. It revealed that there is a crosstalk between magnetoreception and photosensitivity.
Collapse
Affiliation(s)
- Xiaoqian Xiong
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Yingbao Liu
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Jialan Zhang
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Shaojin Wang
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Li Li
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China
| | - Mengxiang Gao
- College of Life Science, Yangtze University, Jingzhou, Hubei 434025, China.
| |
Collapse
|
4
|
Li Q, Fang Y, Wu N, Gu L, Li H, Liao Z, Liu M, Fang Z, Zhang X. Protective Effects of Moderate Intensity Static Magnetic Fields on Diabetic Mice. Bioelectromagnetics 2020; 41:598-610. [PMID: 33179793 DOI: 10.1002/bem.22305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/15/2020] [Accepted: 10/13/2020] [Indexed: 11/12/2022]
Abstract
The purpose of this study was to investigate the effects of moderate-intensity static magnetic field (SMF) on diabetic mice. We studied the effects of SMF on blood glucose of normal mice by starch tolerance and glucose tolerance tests. Then, we evaluated the effects of SMF on blood glucose of diabetic mice by establishing alloxan-induced type 1 diabetic mice and high-fat diet + streptozotocin (STZ)-induced type 2 diabetic mice. The results showed that different magnetic field intensities and blank control did not affect the blood glucose of normal mice. After starch and glucose administration, different magnetic fields could improve the glucose tolerance of normal mice, and this was obvious in the 600 mT group. In the experiment of type 1 diabetic mice induced by alloxan, the results showed that different magnetic field intensities could improve the starch tolerance of mice, and that in the 400 mT group was obvious. In the experiment of type 2 diabetic mice induced by a high-fat diet + STZ, the 400 mT group could reduce food intake and water consumption in the later period. The 600 mT group could improve the starch tolerance of mice. The 400 and 600 mT groups could reduce fasting blood glucose. At the same time, total cholesterol and triglyceride decreased in different magnetic field intensities, and the 600 mT group could significantly increase the serum insulin content of mice. In summary, the results of this study suggest that SMF has a protective role in diabetic mice. Bioelectromagnetics. © 2020 Bioelectromagnetics Society.
Collapse
Affiliation(s)
- Qin Li
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Institute of Materia Medica, Hangzhou Medical College, Hangzhou, P.R. China
| | | | - Ningzi Wu
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Institute of Materia Medica, Hangzhou Medical College, Hangzhou, P.R. China
| | - Lili Gu
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Institute of Materia Medica, Hangzhou Medical College, Hangzhou, P.R. China
| | - Hongxing Li
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Institute of Materia Medica, Hangzhou Medical College, Hangzhou, P.R. China
| | | | - Mengyu Liu
- Heye Health Technology, Anji, P.R. China
| | | | - Xinyue Zhang
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, Institute of Materia Medica, Hangzhou Medical College, Hangzhou, P.R. China
| |
Collapse
|
5
|
Xiong X, Zhen Z, Liu Y, Gao M, Wang S, Li L, Zhang J. Low‐Frequency Magnetic Field of Appropriate Strengths Changed Secondary Metabolite Production and Na
+
Concentration of Intracellular and Extracellular
Monascus purpureus. Bioelectromagnetics 2020; 41:289-297. [DOI: 10.1002/bem.22262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 03/17/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Xiaoqian Xiong
- College of Life ScienceYangtze University Jingzhou China
| | - Zhixin Zhen
- College of Life ScienceYangtze University Jingzhou China
| | - Yingbao Liu
- College of Life ScienceYangtze University Jingzhou China
| | - Mengxiang Gao
- College of Life ScienceYangtze University Jingzhou China
| | - Shaojin Wang
- College of Life ScienceYangtze University Jingzhou China
| | - Li Li
- College of Life ScienceYangtze University Jingzhou China
| | - Jialan Zhang
- College of Life ScienceYangtze University Jingzhou China
| |
Collapse
|
6
|
Kimsa-Dudek M, Synowiec-Wojtarowicz A, Derewniuk M, Paul-Samojedny M, Pawłowska-Góral K. The effect of simultaneous exposure of human fibroblasts to fluoride and moderate intensity static magnetic fields. Int J Radiat Biol 2019; 95:1581-1587. [DOI: 10.1080/09553002.2019.1642543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Magdalena Kimsa-Dudek
- Department of Nutrigenomics and Bromatology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Agnieszka Synowiec-Wojtarowicz
- Department of Nutrigenomics and Bromatology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Małgorzata Derewniuk
- Department of Molecular Biology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Monika Paul-Samojedny
- Department of Medical Genetics, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Katarzyna Pawłowska-Góral
- Department of Nutrigenomics and Bromatology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| |
Collapse
|
7
|
Sun L, Li X, Ma H, He R, Donkor PO. Global gene expression changes reflecting pleiotropic effects of Irpex lacteus
induced by low-intensity electromagnetic field. Bioelectromagnetics 2019; 40:104-117. [DOI: 10.1002/bem.22171] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 01/14/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Ling Sun
- School of Food and Biological Engineering; Jiangsu University; Zhenjiang Jiangsu China
| | - Xinyi Li
- School of Food and Biological Engineering; Jiangsu University; Zhenjiang Jiangsu China
| | - Haile Ma
- School of Food and Biological Engineering; Jiangsu University; Zhenjiang Jiangsu China
| | - Ronghai He
- School of Food and Biological Engineering; Jiangsu University; Zhenjiang Jiangsu China
| | - Prince O. Donkor
- School of Food and Biological Engineering; Jiangsu University; Zhenjiang Jiangsu China
| |
Collapse
|
8
|
Sepehrimanesh M, Kazemipour N, Saeb M, Nazifi S, Davis DL. Proteomic analysis of continuous 900-MHz radiofrequency electromagnetic field exposure in testicular tissue: a rat model of human cell phone exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:13666-13673. [PMID: 28397118 DOI: 10.1007/s11356-017-8882-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 03/20/2017] [Indexed: 06/07/2023]
Abstract
Although cell phones have been used worldwide, some adverse and toxic effects were reported for this communication technology apparatus. To analyze in vivo effects of exposure to radiofrequency-electromagnetic field (RF-EMF) on protein expression in rat testicular proteome, 20 Sprague-Dawley rats were exposed to 900 MHz RF-EMF for 0, 1, 2, or 4 h/day for 30 consecutive days. Protein content of rat testes was separated by high-resolution two-dimensional electrophoresis using immobilized pH gradient (pI 4-7, 7 cm) and 12% acrylamide and identified by MALDI-TOF/TOF-MS. Two protein spots were found differentially overexpressed (P < 0.05) in intensity and volume with induction factors 1.7 times greater after RF-EMF exposure. After 4 h of daily exposure for 30 consecutive days, ATP synthase beta subunit (ASBS) and hypoxia up-regulated protein 1 precursor (HYOU1) were found to be significantly up-regulated. These proteins affect signaling pathways in rat testes and spermatogenesis and play a critical role in protein folding and secretion in the endoplasmic reticulum. Our results indicate that exposure to RF-EMF produces increases in testicular proteins in adults that are related to carcinogenic risk and reproductive damage. In light of the widespread practice of men carrying phones in their pockets near their gonads, where exposures can exceed as-tested guidelines, further study of these effects should be a high priority.
Collapse
Affiliation(s)
- Masood Sepehrimanesh
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Po. Box: 17935-1311, Shiraz, Iran.
- Department of Biochemistry, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Nasrin Kazemipour
- Department of Biochemistry, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Mehdi Saeb
- Department of Biochemistry, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Saeed Nazifi
- Department of Clinical Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | | |
Collapse
|
9
|
Romeo S, Sannino A, Scarfì MR, Massa R, d’Angelo R, Zeni O. Lack of effects on key cellular parameters of MRC-5 human lung fibroblasts exposed to 370 mT static magnetic field. Sci Rep 2016; 6:19398. [PMID: 26762783 PMCID: PMC4725921 DOI: 10.1038/srep19398] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 12/07/2015] [Indexed: 01/22/2023] Open
Abstract
The last decades have seen increased interest toward possible adverse effects arising from exposure to intense static magnetic fields. This concern is mainly due to the wider and wider applications of such fields in industry and clinical practice; among them, Magnetic Resonance Imaging (MRI) facilities are the main sources of exposure to static magnetic fields for both general public (patients) and workers. In recent investigations, exposures to static magnetic fields have been demonstrated to elicit, in different cell models, both permanent and transient modifications in cellular endpoints critical for the carcinogenesis process. The World Health Organization has therefore recommended in vitro investigations as important research need, to be carried out under strictly controlled exposure conditions. Here we report on the absence of effects on cell viability, reactive oxygen species levels and DNA integrity in MRC-5 human foetal lung fibroblasts exposed to 370 mT magnetic induction level, under different exposure regimens. Exposures have been performed by using an experimental apparatus designed and realized for operating with the static magnetic field generated by permanent magnets, and confined in a magnetic circuit, to allow cell cultures exposure in absence of confounding factors like heating or electric field components.
Collapse
Affiliation(s)
- Stefania Romeo
- CNR – Institute for Electromagnetic Sensing of Environment, Via Diocleziano 328, 80124 Naples, Italy
| | - Anna Sannino
- CNR – Institute for Electromagnetic Sensing of Environment, Via Diocleziano 328, 80124 Naples, Italy
| | - Maria Rosaria Scarfì
- CNR – Institute for Electromagnetic Sensing of Environment, Via Diocleziano 328, 80124 Naples, Italy
| | - Rita Massa
- CNR – Institute for Electromagnetic Sensing of Environment, Via Diocleziano 328, 80124 Naples, Italy
- Department of Physics, University of Naples Federico II, CMSA via Cintia, 80126, Napoli, Italy
| | - Raffaele d’Angelo
- Italian Workers’ Compensation Authority (INAIL)–Regional Technical Advisory Department Risk and Prevention Assessment (CONTARP) of Campania, via Nuova Poggioreale, 80143 Napoli
| | - Olga Zeni
- CNR – Institute for Electromagnetic Sensing of Environment, Via Diocleziano 328, 80124 Naples, Italy
| |
Collapse
|
10
|
Wan GJ, Jiang SL, Zhao ZC, Xu JJ, Tao XR, Sword GA, Gao YB, Pan WD, Chen FJ. Bio-effects of near-zero magnetic fields on the growth, development and reproduction of small brown planthopper, Laodelphax striatellus and brown planthopper, Nilaparvata lugens. JOURNAL OF INSECT PHYSIOLOGY 2014; 68:7-15. [PMID: 24995837 DOI: 10.1016/j.jinsphys.2014.06.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 06/04/2014] [Accepted: 06/18/2014] [Indexed: 06/03/2023]
Abstract
Magnetic fields markedly affect the growth and development of many species of organisms potentially due to cryptochrome and endogenous presence of magnetic materials. Sensitivity to magnetic fields can also be involved in geomagnetic orientation by some long-distance migratory insects. In this study, near-zero magnetic fields (NZMF) in relation to normal geomagnetic fields (GMF) were setup using the Hypomagnetic Field Space System (HMFs) to investigate the effects of magnetic fields on the growth, development and reproduction of two species of migratory planthopper, the small brown planthopper (abbr. SBPH), Laodelphax striatellus, and the brown planthopper (abbr. BPH), Nilaparvata lugens. Exposure of both L. striatellus and N. lugens to NZMF delayed egg and nymphal developmental durations and decreased adult weight and female fecundity. The 1st-5th instars of SBPH and BPH showed different responses to NZMF. The 4th instar was significantly affected by NZMF, especially for BPH males, in which NZMF exposure reduced the difference in development duration between females and males. Compared with GMF, the vitellogenin transcript levels of newly molted female adults and the number of eggs per female were significantly reduced in both planthopper species, indicating a negative effect on fertility under NZMF. Our findings provided experimental evidence that NZMF negatively affected the growth and development of SBPH and BPH, with particularly strong effects on reproduction.
Collapse
Affiliation(s)
- Gui-jun Wan
- Laboratory of Insect-Information Ecology, Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shou-lin Jiang
- Laboratory of Insect-Information Ecology, Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zong-chao Zhao
- Laboratory of Insect-Information Ecology, Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing-jing Xu
- Beijing Key Laboratory of Bioelectromagetics, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiao-rong Tao
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China
| | - Gregory A Sword
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
| | - Yue-bo Gao
- Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Changchun 130124, China
| | - Wei-dong Pan
- Beijing Key Laboratory of Bioelectromagetics, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China.
| | - Fa-jun Chen
- Laboratory of Insect-Information Ecology, Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China.
| |
Collapse
|
11
|
Wang Z, Hao F, Ding C, Yang Z, Shang P. Effects of static magnetic field on cell biomechanical property and membrane ultrastructure. Bioelectromagnetics 2014; 35:251-61. [DOI: 10.1002/bem.21847] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 01/26/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Zhe Wang
- Key Laboratory for Space Biosciences and Biotechnology; Institute of Special Environmental Biophysics; School of Life Sciences; Northwestern Polytechnical University; Xi'an People's Republic of China
| | - Fengtao Hao
- Key Laboratory for Space Biosciences and Biotechnology; Institute of Special Environmental Biophysics; School of Life Sciences; Northwestern Polytechnical University; Xi'an People's Republic of China
| | - Chong Ding
- Key Laboratory for Space Biosciences and Biotechnology; Institute of Special Environmental Biophysics; School of Life Sciences; Northwestern Polytechnical University; Xi'an People's Republic of China
| | - Zhouqi Yang
- Key Laboratory for Space Biosciences and Biotechnology; Institute of Special Environmental Biophysics; School of Life Sciences; Northwestern Polytechnical University; Xi'an People's Republic of China
| | - Peng Shang
- Key Laboratory for Space Biosciences and Biotechnology; Institute of Special Environmental Biophysics; School of Life Sciences; Northwestern Polytechnical University; Xi'an People's Republic of China
| |
Collapse
|
12
|
Partial Recovery of Silver Nanoparticle-Induced Neural Cytotoxicity through the Application of a Static Magnetic Field. BIONANOSCIENCE 2013. [DOI: 10.1007/s12668-013-0109-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
13
|
Comfort KK, Maurer EI, Hussain SM. The Biological Impact of Concurrent Exposure to Metallic Nanoparticles and a Static Magnetic Field. Bioelectromagnetics 2013; 34:500-11. [DOI: 10.1002/bem.21790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 03/03/2013] [Indexed: 11/12/2022]
Affiliation(s)
| | - Elizabeth I. Maurer
- Molecular Bioeffects Branch, Human Effectiveness Directorate; Air Force Research Laboratory, Wright-Patterson AFB; Ohio
| | - Saber M. Hussain
- Molecular Bioeffects Branch, Human Effectiveness Directorate; Air Force Research Laboratory, Wright-Patterson AFB; Ohio
| |
Collapse
|
14
|
Potenza L, Saltarelli R, Polidori E, Ceccaroli P, Amicucci A, Zeppa S, Zambonelli A, Stocchi V. Effect of 300 mT static and 50 Hz 0.1 mT extremely low frequency magnetic fields on Tuber borchii mycelium. Can J Microbiol 2012; 58:1174-82. [DOI: 10.1139/w2012-093] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present work aimed to investigate whether exposure to static magnetic field (SMF) and extremely low frequency magnetic field (ELF-MF) can induce biomolecular changes on Tuber borchii hyphal growth. Tuber borchii mycelium was exposed for 1 h for 3 consecutive days to a SMF of 300 mT or an ELF-MF of 0.1 mT 50 Hz. Gene expression and biochemical analyses were performed. In mycelia exposed to ELF-MF, some genes involved in hyphal growth, investigated using quantitative real-time polymerase chain reaction, were upregulated, and the activity of many glycolytic enzymes was increased. On the contrary, no differences were observed in gene expression after exposure to SMF treatment, and only the activities of glucose 6-phosphate dehydrogenase and hexokinase increased. The data herein presented suggest that the electromagnetic field can act as an environmental factor in promoting hyphal growth and can be used for applicative purposes, such as the set up of new in vitro cultivation techniques.
Collapse
Affiliation(s)
- Lucia Potenza
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| | - Roberta Saltarelli
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| | - Emanuela Polidori
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| | - Paola Ceccaroli
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| | - Antonella Amicucci
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| | - Sabrina Zeppa
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| | - Alessandra Zambonelli
- Department of Agri-food Protection and Improvement, University of Bologna, 40127 Bologna, Italy
| | - Vilberto Stocchi
- Department of Biomolecular Science, Universiy of Urbino “Carlo Bo,” Via A. Saffi 2, 61029 Urbino, Italy
| |
Collapse
|
15
|
Li Y, Song LQ, Chen MQ, Zhang YM, Li J, Feng XY, Li W, Guo W, Jia G, Wang H, Yu J. Low Strength Static Magnetic Field Inhibits the Proliferation, Migration, and Adhesion of Human Vascular Smooth Muscle Cells in a Restenosis Model Through Mediating Integrins β1-FAK, Ca2+ Signaling Pathway. Ann Biomed Eng 2012; 40:2611-8. [DOI: 10.1007/s10439-012-0602-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 05/22/2012] [Indexed: 01/01/2023]
|
16
|
Nikolić L, Todorović N, Zakrzewska J, Stanić M, Rauš S, Kalauzi A, Janać B. Involvement of Na+/K+ pump in fine modulation of bursting activity of the snail Br neuron by 10 mT static magnetic field. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2012; 198:525-40. [PMID: 22534773 DOI: 10.1007/s00359-012-0727-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 04/06/2012] [Accepted: 04/07/2012] [Indexed: 01/17/2023]
Abstract
The spontaneously active Br neuron from the brain-subesophageal ganglion complex of the garden snail Helix pomatia rhythmically generates regular bursts of action potentials with quiescent intervals accompanied by slow oscillations of membrane potential. We examined the involvement of the Na(+)/K(+) pump in modulating its bursting activity by applying a static magnetic field. Whole snail brains and Br neuron were exposed to the 10-mT static magnetic field for 15 min. Biochemical data showed that Na(+)/K(+)-ATPase activity increased almost twofold after exposure of snail brains to the static magnetic field. Similarly, (31)P NMR data revealed a trend of increasing ATP consumption and increase in intracellular pH mediated by the Na(+)/H(+) exchanger in snail brains exposed to the static magnetic field. Importantly, current clamp recordings from the Br neuron confirmed the increase in activity of the Na(+)/K(+) pump after exposure to the static magnetic field, as the magnitude of ouabain's effect measured on the membrane resting potential, action potential, and interspike interval duration was higher in neurons exposed to the magnetic field. Metabolic pathways through which the magnetic field influenced the Na(+)/K(+) pump could involve phosphorylation and dephosphorylation, as blocking these processes abolished the effect of the static magnetic field.
Collapse
Affiliation(s)
- Ljiljana Nikolić
- Department of Neurophysiology, Institute for Biological Research Siniša Stanković, University of Belgrade, Bulevar Despota Stefana 142, Belgrade, Serbia.
| | | | | | | | | | | | | |
Collapse
|