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Pulsed electromagnetic field

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https://www.readbyqxmd.com/read/28702986/electromagnetic-field-in-control-tissue-regeneration-pelvic-pain-neuro-inflammation-and-modulation-of-non-neuronal-cells
#1
S E Aragona, G Mereghetti, G Gianazza, A Salsa, G Gianazza, J Lotti, A Vosa, T Lotti, E Canavesi
In scientific literature, magnetic fields are used both in basic science and clinical research. They are often used to treat pain and neuro-inflammation disorders thanks to their influence on cellular responses. Our project was born from the regenerative support that we wanted to give to those diseases characterized by neuro-inflammation, nerve lesion, muscles and tissues disorders that can transform the symptom (e.g. neuropathic pelvic pain) in disease. In this study, we examined the action of pulsed electromagnetic fields (PEMFs) on skin lesion regeneration and the repetitive trans-pelvic magnetic stimulation (rTPMS) on patients affected by incontinence and post-surgical problems, sexual dysfunction, and pelvic pain...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28685556/use-of-supercharged-cover-screw-as-static-magnetic-field-generator-for-bone-healing-2nd-part-in-vivo-enhancement-of-bone-regeneration-in-rabbits
#2
F Bambini, A Santarelli, A Putignano, M Procaccini, G Orsini, D Di Iorio, L Memè, D Sartini, M Emanuelli, L Lo Muzio
In 1979, Pulsed electromagnetic fields (PEMFs) were approved by the Food and Drug Administration as an effective method in the treatment of non-unions. As well as PEMFs, also static magnetic fields (SMFs) have been widely investigated in orthopaedic studies. Even if the exact mechanism of action is not well understood, a large number of studies showed specific effects both at cellular and tissue levels. As bone fracture healing and osseointegration share the same biological events, the application of magnetic field stimulation in order to facilitate the osseointegration process has been suggested...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28674780/delivery-devices-for-exposure-of-biological-cells-to-nanosecond-pulsed-electric-fields
#3
Malak Soueid, Martinus C F Dobbelaar, Sabrina Bentouati, Sylvia M Bardet, Rodney P O'Connor, Delphine Bessières, Jean Paillol, Philippe Leveque, Delia Arnaud-Cormos
In this paper, delivery devices for nanosecond pulsed electric field exposure of biological samples in direct contact with electrodes or isolated are presented and characterized. They are based on a modified electroporation cuvette and two transverse electromagnetic cells (TEM cells). The devices were used to apply pulses with high intensity (4.5 kV) and short durations (3 and 13 ns). The delivery devices were electromagnetically characterized in the frequency and time domains. Field intensities of around 5, 0...
July 4, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28668834/effects-of-pulsed-electromagnetic-fields-on-breast-cancer-cell-line-mcf-7-using-absorption-spectroscopy
#4
Dominic Z Alcantara, Ian Jerry S Soliman, Romeric F Pobre, Raouf N G Naguib
We present an analysis of the effects of pulsed electromagnetic fields (PEMF) with 3.3 MHz carrier frequency and modulated by audio resonant frequencies on the MCF-7 breast cancer cell line in vitro using absorption spectroscopy. This involves a fluorescence dye called PrestoBlue™ Cell Viability Reagent and a spectrophotometry to test the viability of MCF-7 breast cancer cells under different PEMF treatment conditions in terms of the cell absorption values. The DNA molecule of the MCF-7 breast cancer cells has an electric dipole property that renders it sensitive and reactive to applied electromagnetic fields...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28665487/effects-of-pulsed-electromagnetic-fields-on-postmenopausal-osteoporosis
#5
REVIEW
Siyi Zhu, Hongchen He, Chi Zhang, Haiming Wang, Chengfei Gao, Xijie Yu, Chengqi He
Postmenopausal osteoporosis (PMOP) is considered to be a well-defined subject that has caused high morbidity and mortality. In elderly women diagnosed with PMOP, low bone mass and fragile bone strength have been proven to significantly increase risk of fragility fractures. Currently, various anabolic and anti-resorptive therapies have been employed in an attempt to retain healthy bone mass and strength. Pulsed electromagnetic fields (PEMFs), first applied in treating patients with delayed fracture healing and nonunions, may turn out to be another potential and effective therapy for PMOP...
June 30, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28656960/ensemble-averaged-rabi-oscillations-in-a-ferromagnetic-cofeb-film
#6
Amir Capua, Charles Rettner, See-Hun Yang, Timothy Phung, Stuart S P Parkin
Rabi oscillations describe the process whereby electromagnetic radiation interacts coherently with spin states in a non-equilibrium interaction. To date, Rabi oscillations have not been studied in one of the most common spin ensembles in nature: spins in ferromagnets. Here, using a combination of femtosecond laser pulses and microwave excitations, we report the classical analogue of Rabi oscillations in ensemble-averaged spins of a ferromagnet. The microwave stimuli are shown to extend the coherence-time resulting in resonant spin amplification...
June 28, 2017: Nature Communications
https://www.readbyqxmd.com/read/28646801/the-effects-of-exposure-to-low-frequency-electromagnetic-fields-on-male-fertility
#7
Mahsa Darbandi, Sara Darbandi, Ashok Agarwal, Ralf Henkle, Mohammad Reza Sadeghi
Context • People are increasingly exposed to low frequency (LF) electromagnetic fields (EMFs), mainly from electricity distribution networks and electronic devices. Critics of this widespread exposure believe that it can have detrimental effects on the human body. On the other hand, many in vivo and in vitro studies have claimed that low frequency electromagnetic therapy can function as a form of alternative medicine and that therapists can treat disease by applying electromagnetic radiation or pulsed EMFs to the body or cells...
June 23, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28638097/linking-the-rotation-of-a-rigid-body-to-the-schr%C3%A3-dinger-equation-the-quantum-tennis-racket-effect-and-beyond
#8
L Van Damme, D Leiner, P Mardešić, S J Glaser, D Sugny
The design of efficient and robust pulse sequences is a fundamental requirement in quantum control. Numerical methods can be used for this purpose, but with relatively little insight into the control mechanism. Here, we show that the free rotation of a classical rigid body plays a fundamental role in the control of two-level quantum systems by means of external electromagnetic pulses. For a state to state transfer, we derive a family of control fields depending upon two free parameters, which allow us to adjust the efficiency, the time and the robustness of the control process...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28624853/biophysical-stimulation-improves-clinical-results-of-matrix-assisted-autologous-chondrocyte-implantation-in-the-treatment-of-chondral-lesions-of-the-knee
#9
Marco Collarile, Andrea Sambri, Giada Lullini, Matteo Cadossi, Claudio Zorzi
PURPOSE: The purpose of the present study was to evaluate the effects of pulsed electromagnetic fields (PEMFs) on clinical outcome in patients who underwent arthroscopic matrix-assisted autologous chondrocyte implantation (MACI) for chondral lesions of the knee. METHODS: Thirty patients affected by grade III and IV International Cartilage Repair Society chondral lesions of the knee underwent MACI. After surgery, patients were randomly assigned to either experimental group (PEMFs 4 h per day for 60 days) or control group ...
June 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28614775/changes-in-viability-of-rat-adipose-derived-stem-cells-isolated-from-abdominal-perinuclear-adipose-tissue-stimulated-with-pulsed-electromagnetic-field
#10
A Baranowska, B Skowron, B Nowak, K Ciesielczyk, P Guzdek, K Gil, J Kaszuba-Zwoinska
Previous experiments demonstrated that low-frequency electromagnetic field (LF-EMF) may activate cellular death pathways in proliferating cells. Therefore, we hypothesized that LF-EMF may also influence viability of highly proliferating undifferentiated adipose-derived stem cells. Obesity is classified as a civilization disease; its etiopathogenesis is presumed to include both genetic predisposition and influence of modified environmental factors, such as unbalanced diet with excess calories and/or too low physical activity...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28579894/osteogenic-differentiation-of-bone-marrow-mesenchymal-stem-cells-by-magnetic-nanoparticle-composite-scaffolds-under-a-pulsed-electromagnetic-field
#11
Jianghong Huang, Daming Wang, Jielin Chen, Wei Liu, Li Duan, Wei You, Weimin Zhu, Jianyi Xiong, Daping Wang
This study was conducted to investigate the effect of magnetic nanoparticle composite scaffold under a pulsed electromagnetic field on bone marrow mesenchymal stem cells (BMSCs), which was achieved by examining the biological behaviors of cell adhesion, proliferation and differentiation on the surface of the scaffolds. This may provide some experimental evidence for the use of magnetic nanoparticles in medical application. The magnetic nanoparticle composite scaffolds were evaluated and characterized by the following indexes: the cell proliferation was detected by the CCK-8 method, the alkaline phosphatase (ALP) activity was examined by a detection kit, and the expression of type I collagen and osteocalcin gene were evaluated by RT-PCR...
May 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28578480/acute-neuroinflammation-promotes-cell-responses-to-1800%C3%A2-mhz-gsm-electromagnetic-fields-in-the-rat-cerebral-cortex
#12
Julie Lameth, Annie Gervais, Catherine Colin, Philippe Lévêque, Thérèse M Jay, Jean-Marc Edeline, Michel Mallat
Mobile phone communications are conveyed by radiofrequency (RF) electromagnetic fields, including pulse-modulated global system for mobile communications (GSM)-1800 MHz, whose effects on the CNS affected by pathological states remain to be specified. Here, we investigated whether a 2-h head-only exposure to GSM-1800 MHz could impact on a neuroinflammatory reaction triggered by lipopolysaccharide (LPS) in 2-week-old or adult rats. We focused on the cerebral cortex in which the specific absorption rate (SAR) of RF averaged 2...
June 3, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28558424/on-the-biophysical-mechanism-of-sensing-atmospheric-discharges-by-living-organisms
#13
Dimitris J Panagopoulos, Alfonso Balmori
Atmospheric electrical discharges during thunderstorms, and the related electromagnetic fields (EMFs)/waves called sferics, can be sensed by humans at long distances through a variety of symptoms, mainly headache, fatigue, etc. Up to today there is no explanation for this association. Sferics consist of partially polarized electromagnetic pulses with an oscillating carrier signal in the very low frequency (VLF) band and a pulse repetition frequency in the extremely low frequency (ELF) band. Their ELF intensity may reach ~5mV/m at global ranges, and ~0...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28555640/attosecond-interferometry-with-self-amplified-spontaneous-emission-of-a-free-electron-laser
#14
Sergey Usenko, Andreas Przystawik, Markus Alexander Jakob, Leslie Lamberto Lazzarino, Günter Brenner, Sven Toleikis, Christian Haunhorst, Detlef Kip, Tim Laarmann
Light-phase-sensitive techniques, such as coherent multidimensional spectroscopy, are well-established in a broad spectral range, already spanning from radio-frequencies in nuclear magnetic resonance spectroscopy to visible and ultraviolet wavelengths in nonlinear optics with table-top lasers. In these cases, the ability to tailor the phases of electromagnetic waves with high precision is essential. Here we achieve phase control of extreme-ultraviolet pulses from a free-electron laser (FEL) on the attosecond timescale in a Michelson-type all-reflective interferometric autocorrelator...
May 30, 2017: Nature Communications
https://www.readbyqxmd.com/read/28550499/systematic-review-of-fmri-compatible-devices-design-and-testing-criteria
#15
REVIEW
V Hartwig, N Carbonaro, A Tognetti, N Vanello
Functional Magnetic Resonance Imaging (fMRI) is at present one of the most used methodologies for functional brain exploration, both in clinical and research settings. fMRI can noninvasively measure neural activity by using specific experimental paradigms. Often, these paradigms require the stimulation of the subject to perform sensorimotor tasks: in the past, the stimuli have been administered manually for investigating fundamental aspects of tactile perception and somatosensory processing. Nowadays, the use of mechatronic devices to stimulate the subject during fMRI studies is growing, also to assure reproducibility, control, and monitoring of task performances...
May 26, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28539622/high-visibility-first-order-subwavelength-interference-based-on-light-pulse-storage-via-electromagnetically-induced-transparency
#16
Zhixiang Li, Jianji Liu, Hongming Fan, Jiachen Liu, Guoquan Zhang
We achieved high visibility first-order subwavelength interference based on light pulse storage and retrieval technique via electromagnetically induced transparency (EIT) effect in a Pr(3+):Y2SiO5 crystal. The interference field distribution of a double-slit was first stored in a Pr(3+):Y2SiO5 crystal based on EIT effect, and then it was read out by a spatially modulated readout beam. The retrieved output field is proportional to the product of the input interference field of the double-slit and the spatially modulated readout field...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28537455/efficacy-of-dipeptide-coated-magnetic-nanoparticles-in-lung-cancer-models-under-pulsed-electromagnetic-field
#17
Ganga Baskar, Mathangi Ravi, Jiban Jyoti Panda, Anjali Khatri, Bhawna Dev, Roy Santosham, Sekar Sathiya, Chidambaram Saravana Babu, Virander Singh Chauhan, Suresh K Rayala, Ganesh Venkatraman
Lung cancer is the leading cause of cancer deaths and the overall 5-year survival rate is less than 17%. Hyperthermia is an alternative approach for the treatment of lung cancer and is associated with fewer side effects. We employed ironoxide nanoparticles in inducing localized hyperthermia in lung cancer cells using a pulsed electromagnetic field (PEMF). We synthesized, characterized and determined the uptake of dipeptide-coated iron oxide nanoparticles. Further, their ability in inducing localized hyperthermia in PEMF on lung cancer cells was assessed...
May 24, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28534925/osmotin-loaded-magnetic-nanoparticles-with-electromagnetic-guidance-for-the-treatment-of-alzheimer-s-disease
#18
Faiz Ul Amin, Ali Kafash Hoshiar, Ton Duc Do, Yeongil Noh, Shahid Ali Shah, Muhammad Sohail Khan, Jungwon Yoon, Myeong Ok Kim
Alzheimer's disease (AD) is the most prevalent age-related neurodegenerative disease, pathologically characterized by the accumulation of aggregated amyloid beta (Aβ) in the brain. Here, we describe for the first time the development of a new, pioneering nanotechnology-based drug delivery approach for potential therapies for neurodegenerative diseases, particularly AD. We demonstrated the delivery of fluorescent carboxyl magnetic Nile Red particles (FMNPs) to the brains of normal mice using a functionalized magnetic field (FMF) composed of positive- and negative-pulsed magnetic fields generated by electromagnetic coils...
May 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/28522446/non-contact-electromagnetic-induction-heating-for-eradicating-bacteria-and-yeasts-on-biomaterials-and-possible-relevance-to-orthopaedic-implant-infections-in-vitro-findings
#19
B G Pijls, I M J G Sanders, E J Kuijper, R G H H Nelissen
OBJECTIVES: Infection of implants is a major problem in elective and trauma surgery. Heating is an effective way to reduce the bacterial load in food preparation, and studies on hyperthermia treatment for cancer have shown that it is possible to heat metal objects with pulsed electromagnetic fields selectively (PEMF), also known as induction heating. We therefore set out to answer the following research question: is non-contact induction heating of metallic implants effective in reducing bacterial load in vitro? METHODS: Titanium alloy cylinders (Ti6Al4V) were exposed to PEMF from an induction heater with maximum 2000 watts at 27 kHz after being contaminated with five different types of micro-organisms: Staphylococcus epidermidis; Staphylococcus aureus; Pseudomonas aeruginosa; spore-forming Bacillus cereus; and yeast Candida albicans...
May 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28512472/pulsed-electromagnetic-field-regulates-microrna-21-expression-to-activate-tgf-%C3%AE-signaling-in-human-bone-marrow-stromal-cells-to-enhance-osteoblast-differentiation
#20
Nagarajan Selvamurugan, Zhiming He, Daniel Rifkin, Branka Dabovic, Nicola C Partridge
Pulsed electromagnetic fields (PEMFs) have been documented to promote bone fracture healing in nonunions and increase lumbar spinal fusion rates. However, the molecular mechanisms by which PEMF stimulates differentiation of human bone marrow stromal cells (hBMSCs) into osteoblasts are not well understood. In this study the PEMF effects on hBMSCs were studied by microarray analysis. PEMF stimulation of hBMSCs' cell numbers mainly affected genes of cell cycle regulation, cell structure, and growth receptors or kinase pathways...
2017: Stem Cells International
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