Is there a role of pulsed electromagnetic fields in management of patellofemoral pain syndrome? Randomized controlled study at one year follow‐up
Patellofemoral pain syndrome (PFPS) is a common cause of recurrent or chronic knee pain in young adults, generally located in the retropatellar region. Etiology is controversial and includes several factors, such as anatomical defects, muscular imbalance, or joint overuse. Good results have been reported with exercise therapy, including home exercise program (HEP). Joint inflammation with increase of pro‐inflammatory cytokines levels in the synovial fluid might be seen especially when chondromalacia becomes evident. Biophysical stimulation with pulsed electromagnetic fields (PEMFs) has shown anti‐inflammatory effects a...
Source: Bioelectromagnetics - January 1, 2016 Category: Radiology Authors: Clemente Servodio Iammarrone, Matteo Cadossi, Andrea Sambri, Eugenio Grosso, Bruno Corrado, Fernanda Servodio Iammarrone Tags: Research Article Source Type: research
Comments on SCENIHR: Opinion on potential health effects of exposure to electromagnetic fields, bioelectromagnetics 36:480−484 (2015)
(Source: Bioelectromagnetics)
Source: Bioelectromagnetics - December 21, 2015 Category: Radiology Authors: Cindy Sage, David Carpenter, Lennart Hardell Tags: Comment Source Type: research
Reply to comment of Sage et al. on SCENIHR's opinion on potential health effects of exposure to electromagnetic fields
(Source: Bioelectromagnetics)
Source: Bioelectromagnetics - December 20, 2015 Category: Radiology Authors: Norbert Leitgeb Tags: Response Source Type: research
Desktop exposure system and dosimetry for small scale in vivo radiofrequency exposure experiments
This paper describes a new approach to the risk assessment of exposure from wireless network devices, including an exposure setup and dosimetric assessment for in vivo studies. A novel desktop reverberation chamber has been developed for well‐controlled exposure of mice for up to 24 h per day to address the biological impact of human exposure scenarios by wireless networks. The carrier frequency of 2.45 GHz corresponds to one of the major bands used in data communication networks and is modulated by various modulation schemes, including Global System for Mobile Communications (GSM), Universal Mobile Telecommunication...
Source: Bioelectromagnetics - December 18, 2015 Category: Radiology Authors: Yijian Gong, Myles Capstick, Thomas Tillmann, Clemens Dasenbrock, Theodoros Samaras, Niels Kuster Tags: Research Article Source Type: research
Does exposure to environmental radiofrequency electromagnetic fields cause cognitive and behavioral effects in 10‐year‐old boys?
The relationship between exposure to electromagnetic fields from non‐ionizing radiation and adverse human health effects remains controversial. We aimed to explore the association of environmental radiofrequency‐electromagnetic fields (RF‐EMFs) exposure with neurobehavioral function of children. A subsample of 123 boys belonging to the Environment and Childhood cohort from Granada (Spain), recruited at birth from 2000 through 2002, were evaluated at the age of 9–11 years. Spot electric field measurements within the 100 kHz to 6 GHz frequency range, expressed as both root mean‐square (SRMS) and maximum power d...
Source: Bioelectromagnetics - December 18, 2015 Category: Radiology Authors: Irene Calvente, Rocío Pérez‐Lobato, María‐Isabel Núñez, Rosa Ramos, Mònica Guxens, Juan Villalba, Nicolás Olea, Mariana F. Fernández Tags: Research Article Source Type: research
Why magnetic and electromagnetic effects in biology are irreproducible and contradictory?
The main source of magnetic and electromagnetic effects in biological systems is now generally accepted and demonstrated in this paper to be radical pair mechanism which implies pairwise generation of radicals in biochemical reactions. This mechanism was convincingly established for enzymatic adenosine triphosphate (ATP) and desoxynucleic acid (DNA) synthesis by using catalyzing metal ions with magnetic nuclei (25Mg, 43Ca, 67Zn) and supported by magnetic field effects on these reactions. The mechanism, is shown to function in medicine as a medical remedy or technology (trans‐cranial magnetic stimulation, nuclear magnetic...
Source: Bioelectromagnetics - December 18, 2015 Category: Radiology Authors: Anatoly Buchachenko Tags: Review Source Type: research
Novel exposure units for at‐home personalized testing of electromagnetic sensibility
Previous experimental studies on electromagnetic hypersensitivity have been criticized regarding inflexibility of choice of exposure and of study locations. We developed and tested novel portable exposure units that can generate different output levels of various extremely low frequency magnetic fields (ELF‐MF; 50 Hz field plus harmonics) and radiofrequency electromagnetic fields (RF‐EMF). Testing was done with a group of healthy volunteers (n = 25 for 5 ELF‐MF and n = 25 for 5 RF‐EMF signals) to assess if units were indeed able to produce double‐blind exposure conditions. Results substantiated that dou...
Source: Bioelectromagnetics - December 11, 2015 Category: Radiology Authors: Anke Huss, Manuel Murbach, Imke van Moorselaar, Niels Kuster, Rob van Strien, Hans Kromhout, Roel Vermeulen, Pauline Slottje Tags: Brief Communication Source Type: research
Low intensity magnetic field influences short‐term memory: A study in a group of healthy students
This study analyzes if an external magnetic stimulus (2 kHz and approximately 0.1 μT applied near frontal cortex) influences working memory, perception, binary decision, motor execution, and sustained attention in humans. A magnetic stimulus and a sham stimulus were applied to both sides of the head (frontal cortex close to temporal–parietal area) in young and healthy male test subjects (n = 65) while performing Sternberg's memory scanning task. There was a significant change in reaction time. Times recorded for perception, sustained attention, and motor execution were lower in exposed subjects (P < 0.01)...
Source: Bioelectromagnetics - December 11, 2015 Category: Radiology Authors: Enrique A. Navarro, Claudio Gomez‐Perretta, Francisco Montes Tags: Research Article Source Type: research
Statistical analysis of electromagnetic radiation measurements in the vicinity of indoor microcell GSM/UMTS base stations in Serbia
To determine the level of radiofrequency radiation generated by base stations of Global System for Mobile Communications and Universal Mobile Telecommunication System, extensive electromagnetic field strength measurements were carried out in the vicinity of 664 base station locations. These were classified into three categories: indoor, masts, and locations with installations on buildings. Although microcell base stations with antennas installed indoors typically emit less power than outdoor macrocell base stations, the fact that people can be found close to antennas requires exposure originating from these base stations t...
Source: Bioelectromagnetics - December 1, 2015 Category: Radiology Authors: Mladen Koprivica, Majda Petrić, Nataša Nešković, Aleksandar Nešković Tags: Letter to the Editor Source Type: research
Calculated spinal cord electric fields and current densities for possible neurite regrowth from quasi‐DC electrical stimulation
The prime goal of this work was to model essentially steady (DC) fields from electrodes, implanted in several ways, which have been suggested as possible means to encourage nerve fiber regrowth in spinal cord injuries. A simplified model of the human spinal cord in the lumbar region and the SEMCAD‐X computer program were used to calculate electric field and current density patterns from electrodes outside vertebrae and those inserted extradurally within the spinal canal. DC electric fields guide nerve growth in developing organisms and in vitro. They also have been shown to encourage healing of injured peripheral nerves,...
Source: Bioelectromagnetics - November 3, 2015 Category: Radiology Authors: Ben Greenebaum Tags: Research Article Source Type: research
Silver nanoparticles and electroporation: Their combinational effect on Leishmania major
In this study, after applying electric pulses with different concentrations of silver nanoparticles (SNPs), cell survival rate was determined by standard viability assays. On the basis of these data, 2 μg/ml of SNPs and 700 V/cm with 100 μs duration of electroporation were selected as the non‐lethal condition. Promastigotes and infected macrophage cells received both treatments and the survival percentage and Infection Index were calculated. In parasites and cells receiving both treatments, higher toxicity was observed in comparison to each treatment given individually, showing a synergic effect on promastigotes....
Source: Bioelectromagnetics - October 1, 2015 Category: Radiology Authors: Elham Dolat, Omid Rajabi, Samaneh Soudmand Salarabadi, Sajedeh Yadegari‐Dehkordi, Ameneh Sazgarnia Tags: Research Article Source Type: research
Effects of PEMF on patients with osteoarthritis: Results of a prospective, placebo‐controlled, double‐blind study
This study aimed to evaluate effects of pulsed electromagnetic fields (PEMF) in a double blind study on patients with knee joint osteoarthritis. The MAGCELL ARTHRO electrode‐less therapy delivered a sinusoidal magnetic field, varying in frequency between 4 and 12 Hz. In 1 cm tissue depth, magnetic flux density was 105 mT. A total of n = 57 patients were randomly assigned to the verum, PEMF or placebo group (placebo device). Their average age was 61.6 ± 12.0 years. According to American College of Rheumatology criteria the osteoarthritis level was 2.8 ± 0.8. Treatment was performed twice a day for 5 ...
Source: Bioelectromagnetics - October 1, 2015 Category: Radiology Authors: Heinz Wuschech, Ulrike von Hehn, Eberhard Mikus, Richard H. Funk Tags: Research Article Source Type: research
Editorial
(Source: Bioelectromagnetics)
Source: Bioelectromagnetics - October 1, 2015 Category: Radiology Authors: James C. Lin Tags: Editorial Source Type: research
Assessment of contribution of other users to own total whole‐body RF absorption in train environment
For the first time, the contribution of radio‐frequent radiation originating from other people's devices to total own whole‐body absorption is assessed in a simulation study. Absorption in a train environment due to base station's downlink is compared with absorption due to uplink (UL) of the user's own mobile device and absorption due to the UL of 0, 1, 5, or 15 other nearby active users. In a Global System for Mobile Communications (GSM) macro cell connection scenario, UL of 15 other users can cause up to 19% of total absorption when calling yourself and up to 100% when not calling yourself. In a Universal Mobile Tel...
Source: Bioelectromagnetics - October 1, 2015 Category: Radiology Authors: David Plets, Wout Joseph, Sam Aerts, Günter Vermeeren, Nadège Varsier, Joe Wiart, Luc Martens Tags: Brief Communication Source Type: research
Variation in dielectric properties due to pathological changes in human liver
Dielectric properties of freshly excised human liver tissues (in vitro) with several pathological conditions including cancer were obtained in frequency range 100 MHz–5 GHz. Differences in dielectric behavior of normal and pathological tissues at microwave frequencies are discussed based on histological information for each tissue. Data presented are useful for many medical applications, in particular nanosecond pulsed electroporation techniques. Knowledge of dielectric properties is vital for mathematical calculations of local electric field distribution inside electroporated tissues and can be used to optimize the ...
Source: Bioelectromagnetics - October 1, 2015 Category: Radiology Authors: Azadeh Peyman, Bor Kos, Mihajlo Djokić, Blaž Trotovšek, Clara Limbaeck‐Stokin, Gregor Serša, Damijan Miklavčič Tags: Brief Communication Source Type: research
