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Effects of electromagnetic fields of low frequency and low intensity on rat metabolismEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A series of experiments on rats have been performed, to study the effects of long time (50 days) exposure to electromagnetic fields of extremely low frequency (ELF, i.e. less than 100 Hz) and amplitude (non thermal), testing whether the metabolic processes would be affected. The background lies on recent observations on the behaviour of isolated enzymes in vitro exposed to EFL fields. In these experiments, the cyclotron (or Larmor) frequency of the metallic ion has been used to "stimulate" the metalloproteins redox-active site, thus obtaining a clear variation of the enzyme functionality. In this paper we have extended for...
Source: BioMagnetic Research and Technology - April 1, 2008 Category: Biotechnology Authors: Gabriele Gerardi, Antonella De Ninno, Marco Prosdocimi, Vanni Ferrari, Filippo Barbaro, Sandro Mazzariol, Daniele Bernardini and Getullio Talpo Source Type: journals

Hyperthermic treatment of DMBA-induced rat mammary cancer using magnetic nanoparticlesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Our results suggest that hyperthermic treatment using MCLs is effective in a spontaneous cancer model.
Source: BioMagnetic Research and Technology - February 25, 2008 Category: Biotechnology Authors: Jun Motoyama, Noriyuki Yamashita, Tomio Morino, Masashi Tanaka, Takeshi Kobayashi and Hiroyuki Honda Source Type: journals

Investigating the effects of external fields polarization on the coupling of pure magnetic waves in the human body in very low frequenciesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this paper we studied the effects of external fields polarization on the coupling of pure magnetic fields into human body. Finite Difference Time Domain (FDTD) method is used to calculate the current densities induced in a 1cm resolution anatomically based model with proper tissue conductivities. Twenty different tissues have been considered in this investigation and scaled FDTD technique is used to convert the results of computer code run in 15 MHz to low frequencies which are encountered in the vicinity of industrial induction heating and melting devices. It has been found that external magnetic fields orientation due...
Source: BioMagnetic Research and Technology - May 15, 2007 Category: Biotechnology Authors: Laleh Golestani-Rad, Behzad Elahi and Jalil Rashed-Mohassel Source Type: journals

Magnetic characterization of superparamagnetic nanoparticles pulled through model membranesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: As prospective carriers of therapeutic substances, polymers containing superparamagnetic iron oxide nanoparticles were succesfully pulled through the live RWM. The force required to achieve in vivo transport was significantly lower than that required to pull nanoparticles through the in-vitro RWM model. Indeed very little force was required to accomplish measurable delivery of polymeric-SPION composite nanoparticles across the RWM, suggesting that therapeutic delivery to the inner ear by SPION is feasible.
Source: BioMagnetic Research and Technology - January 4, 2007 Category: Biotechnology Authors: Allison L Barnes, Ronald A Wassel, Fadee Mondalek, Kejian Chen, Kenneth J Dormer and Richard D Kopke Source Type: journals

Motion and twisting of magnetic particles ingested by alveolar macrophages in the human lung: effect of smoking and diseaseEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Faster relaxation and a soft cytoskeleton in patients with IPF indicate alterations in cytoskeleton dependent functions of alveolar macrophages, which may cause dysfunction's in the alveolar defense, like a slower migration, a retarded phagocytosis, a disturbed phagosome lysosome fusion and an impaired clearance.
Source: BioMagnetic Research and Technology - May 15, 2006 Category: Biotechnology Authors: Winfried Möller, Winfried Barth, Martin Kohlhäufl, Karl Häussinger and Wolfgang G Kreyling Source Type: journals

Differentiation of myomas by means of biomagnetic and doppler findingsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: It is suggested that the biomagnetic recordings of uterine artery myomas could be a valuable modality in the estimation of the circulation of blood cells justifying the findings of Doppler velocimetry examination.
Source: BioMagnetic Research and Technology - April 3, 2006 Category: Biotechnology Authors: Panagiotis Anastasiadis, Achilleas N Anastasiadis, Athanasia Kotini, Nikoleta Koutlaki and Photios Anninos Source Type: journals

Nonlinear analysis of biomagnetic signals recorded from uterine myomasEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
ObjectiveTo determine if there is any non-linearity in the biomagnetic recordings of uterine myomas and to find any differences that may be present in the mechanisms underlying their signal dynamics. Methods: Twenty-four women were included in the study. Sixteen of them were characterised with large myomas and 8 with small ones. Uterine artery waveform measurements were evaluated by use of Pulsatility Index (PI) (normal value PI
Source: BioMagnetic Research and Technology - March 30, 2006 Category: Biotechnology Authors: Athanasia Kotini, Achilleas N Anastasiadis, Photios Anninos, Nikoleta Koutlaki and Panagiotis Anastasiadis Source Type: journals

Growth of etiolated barley plants in weak static and 50 Hz electromagnetic fields tuned to calcium ion cyclotron resonanceEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: A direct influence of the applied MF and EMF is discussed affecting Ca2+ levels via the ICR mechanism. It influences the available Ca2+ and thereby regulatory processes. Theoretical considerations on molecular level focus on ionic interactions with water related to models using quantum electrodynamics.
Source: BioMagnetic Research and Technology - February 3, 2006 Category: Biotechnology Authors: Alexander Pazur, Valentina Rassadina, Jörg Dandler and Jutta Zoller Source Type: journals

Cortex reorganization of Xenopus laevis eggs in strong static magnetic fieldsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Observations of magnetic field effects on biological systems have often been contradictory. For amphibian eggs, a review of the available literature suggests that part of the discrepancies might be resolved by considering a previously neglected parameter for morphological alterations induced by magnetic fields – the jelly layers that normally surround the egg and are often removed in laboratory studies for easier cell handling. To experimentally test this hypothesis, we observed the morphology of fertilizable Xenopus laevis eggs with and without jelly coat that were subjected to static magnetic fields of up to 9.4 T for ...
Source: BioMagnetic Research and Technology - December 13, 2005 Category: Biotechnology Authors: Daniel Mietchen, Jörg W Jakobi and Hans-Peter Richter Source Type: journals

Activity of glucose oxidase functionalized onto magnetic nanoparticlesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Binding of enzyme onto magnetic nanoparticles via carbodiimide activation is a very efficient method for developing bioconjugates for biological applications
Source: BioMagnetic Research and Technology - March 11, 2005 Category: Biotechnology Authors: Gilles K Kouassi, Joseph Irudayaraj and Gregory McCarty Source Type: journals