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:: Volume 24, Issue 6 (2-2017) ::
Journal of Ilam University of Medical Sciences 2017, 24(6): 149-158 Back to browse issues page
Evaluating the Impact of Static and Alternative Electromagnetic Fields on Cardiovascular Disease Parameters
Soheila Abdi *
ِDept of Physics, Safadasht Branch, Islamic Azad University, Tehran, Iran , soheilaabdi@safaiau.ac.ir
Abstract:   (7175 Views)

Introduction: Recently, investigation about the effects of magnetic fields on human cardiovascular parameters becomes a subject of a public concern and private debate. This study was conducted to evaluate the effects of static magnetic fields (SMFs) and extremely low frequency (ELF) electromagnetic fields (EMFs) on cardiovascular parameters such as LDL physicochemical modifications.

Materials & methods: LDL was separated from a pooled serum of 20 male volunteers by sequential ultracentrifugation. Then effect of SMFs and EMFs on LDL modification such as LDL aggregation and surface charge of LDL was investigated.

Findings: The results demonstrated that the static magnetic flux densities of 0.25 and 0.5 mT decrease, and static magnetic flux densities of 3 and 4 mT increase the zeta potential in comparison to the control. Weak ELF-EMFs of 0.125-0.5 mT cause to decrease in LDL zeta potential in a time and dose dependent manner while in moderate ELF-EMFs of 1-4 mT  LDL zeta potential was started to increase after the initial decrease at the first hour of exposure. All doses of SMF and ELF-EMF used in this research increased the LDL aggregation in a time and dose dependent manner.

Discussion & conclusions: It is concluded that weak and moderate SMFs and ELF-EMFs can alternate the tendency of LDL to aggregation and this alteration is dependent on the applied magnetics flux density and time of exposure. Static and electromagnetic fields in addition to their role in producing and stability of free radicals and promoting lipid peroxidation can influence the metabolism of lipoproteins and their interaction with other molecules such as apo lipoproteins, enzymes and receptors through the alteration of the LDL zeta potential and its particles tendency to aggregation. With regard to the effects of ELF-EMFs and moderate SMFs on LDL aggregation as important modifications of LDL that involved in the promotion and progression of atherosclerosis, these magnetic fields can be considered as a risk factor in CVD and atherosclerosis.  

Keywords: Low density lipoprotein, Static magnetic field, Extremely low frequency electromagnetic field, LDL aggregation, LDL zeta potential
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Type of Study: Research | Subject: gardiologist
Received: 2016/07/12 | Accepted: 2016/09/3 | Published: 2017/03/1
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Abdi S. Evaluating the Impact of Static and Alternative Electromagnetic Fields on Cardiovascular Disease Parameters . Journal of Ilam University of Medical Sciences 2017; 24 (6) :149-158
URL: http://sjimu.medilam.ac.ir/article-1-3682-en.html


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Volume 24, Issue 6 (2-2017) Back to browse issues page
مجله دانشگاه علوم پزشکی ایلام Journal of Ilam University of Medical Sciences
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