Influence of exposure to electromagnetic field on the cardiovascular system

Jeong, Ji Hoon; Kim, J. S.; Lee, B. C.; Min, Young; Kim, D. S.; Ryu, Ji-Yoon; Soh, Kwang–Sup; Seo, Kangmoon; Sohn, Uy-Dong

doi:10.1111/j.1474-8673.2004.00328.x

Cited by 30 publications

(30 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the most controversial issues regarding the effects of weak magnetic fields at low frequencies on biological systems is the lack of any widely accepted physico-chemical mechanism to account for the observed phenomena: increased cell proliferation, DNA mutation, altered lipid-protein interactions, biochemical reactions involving free radicals, tumor promotion, Ca 2+ signaling, ornithine decarboxylase activity, gene expression, src kinase activity, the involvement of melatonin and Na + /K + -ATPase, peroxidase activity, fluid-phase endocytosis, connexin32 hemi channels, effects on the cardiovascular system, as well as interaction at the level of the signaling manifold in general and NO radicals in particular (Antov et al, 2004;Portaccio et al, 2005;Ramundo-Orlando et al, 2005;Mahrour et al, 2005;Jeong et al, 2005;Kleinerman et al, 2005) & see the literature survey in .…”

Section: Discussionmentioning

confidence: 99%

Radical Scavengers Suppress Low Frequency EMF Enhanced Proliferation in Cultured Cells and Stress Effects in Higher Plants

et al. 2005

View full text Add to dashboard Cite

In previous publications, we reported that sinusoidal varying magnetic fields (SVMF) modify the activity and dynamics of the malignancy marker adenosine deaminase, and enhance the proliferation of chick embryo fibroblasts (CEF). While the SVMF examined by us (50, 60 & 100 Hz / 0.06-0.7 mT) were all below kT, they may have the potential of altering chemical processes in which excited radicals are involved.We tested this hypothesis in two experimental systems: CEF in culture and Spirodela oligorrhiza (Lemnaceae) (a small aquatic plant, commonly known as Duckweed). CEF were exposed to SVMF of 100 Hz/0.7 mT for 24 h. The addition of the exogenous radical scavengers catalase, superoxide dismutase or vitamin E to the cells during exposure significantly suppressed enhancement of cell proliferation caused by the field (by 79, 67 and 82%, respectively, as evaluated by the MTT colorimetric assay). 15 N NMR analysis of Duckweed plants fed by 15 N-labeled ammonium chloride and exposed to SVMF at 60 and 100 Hz/0.7 mT for 24 h, revealed augmented alanine production. Alanine did not accumulate in the absence of SVMF. The addition of vitamin C, a radical scavenger, reduced alanine production by 82%.Exposure to SVMF resulted in specific metabolic stress effects in Duckweed plants and enhanced proliferation of CEF. In both cases, it is suggested that free radicals are involved.Abbreviations: SVMF = sinusoidal varying magnetic fields; CEF = chick embryo fibroblasts; ADA = adenosine deaminase; SOD = superodxide dismutase.

show abstract

Section: Discussionmentioning

confidence: 99%

Radical Scavengers Suppress Low Frequency EMF Enhanced Proliferation in Cultured Cells and Stress Effects in Higher Plants

et al. 2005

View full text Add to dashboard Cite

show abstract

“…Despite reporting changes in EEG activity (alpha 8-13 Hz) in the 80 T group and of pain threshold changes in the 40 T group, no eVect of exposure could be determined for HR or blood pressure in any of the exposure groups (Ghione et al 2005). Jeong et al (2005) examined the eVects of exposure to a 60 Hz, 2 mT Weld using rats maintained in an experimental chamber for either 1 or 5 days. They found no eVect of exposure on blood pressure in either of the exposure duration groups, although a 1 day exposure was associated with the suppression of pharmacologically induced tachycardia and dysrhythmia.…”

Section: Laboratory Studiesmentioning

confidence: 98%

A literature review: the cardiovascular effects of exposure to extremely low frequency electromagnetic fields

McNamee

Legros

Krewski

et al. 2009

Int Arch Occup Environ Health

View full text Add to dashboard Cite

The effects of exposure to extremely low frequency (ELF) electromagnetic fields (EMFs) on human cardiovascular parameters remain undetermined. Epidemiological studies have utilized dosimetry estimations of employee workplace exposure using altered heart rate variability (HRV) as predictive of certain cardiovascular pathologies. Laboratory studies have focused on macrocirculatory indicators including heart rate, HRV and blood pressure. Few studies have been conducted on the response of the microcirculatory system to EMF exposure. Attempts to replicate both epidemiological and laboratory studies have been mostly unsuccessful as study design, small sample populations and confounding variables have hampered progress to date. Identification of these problems, in the current context of international exposure guideline re-evaluation, is essential for future EMF studies. These studies should address the possible deleterious health effects of EMFs as well as the detection and characterization of subtle physiological changes they may induce. Recommendations for future work include investigating the macro- and microcirculatory relationship and the use of laboratory geomagnetic shielding.

show abstract

“…Atherosclerosis is a progressive disease characterized by the accumulation cholesterol, low density lipoprotein (LDL), and fibrous elements in the large arteries that contribute to the severity of cardiovascular disease (Farias, 1996;Jeong, 2005). Increased total cholesterol and triglycerides are the factors causing the development of atherosclerosis and coronary heart disease (Farias, 1996;Jeong, 2005;Chobanian, 1991).…”

Section: Introductionmentioning

confidence: 99%

“…Increased total cholesterol and triglycerides are the factors causing the development of atherosclerosis and coronary heart disease (Farias, 1996;Jeong, 2005;Chobanian, 1991).…”

Section: Introductionmentioning

confidence: 99%

ANTI-HYPERCHOLESTEROLEMIA ACTIVITY OF ETHANOL EXTRACT Peperomia pellucid

et al. 2016

View full text Add to dashboard Cite

Hypercholesterolemia is a major cause of cardiovascular disease such as coronary heart disease. Betel water (Peperomia pellucida) is a type of plants that have antioxidant compounds that could delay, retard and prevent the oxidation of lipids, both enzymatic and non-enzymatic. This study aimed to determine the effect of ethanol extract Peperomia pellucida against total cholesterol, HDL, LDL, and triglycerides in the serum of white rats (Wistar) were given a diet aterogenetik, so it can be used as prevention of atherosclerosis. The active compounds contained in the water after screnning betel phytochemicals includes flavonoids, tannins, alkaloids, steroids and quinones. In vivo studies conducted by true experimental method with pre and post test with control group design. Rats were divided into 3 groups: group A positive control is given aterogenetik diet, group B and C were given diet Peperomia Pellucida aterogenetik and extract orally at a dose of 150 mg/kg and 300 mg/kg. Diet aterogenetik given as much as 20 grams per day for 14 days. Data obtained include total cholesterol, HDL, LDL, and triglycerides were analyzed by statistical methods Paired T Test oneway ANOVA (P < 0.05). The study of total cholesterol, HDL, LDL and triglycerides showed ethanol extract of Peperomia pellucida at a dose of 300 mg/kg body weight can lower total cholesterol and LDL significantly, but there was no significant decline in triglycerides and can increase HDL levels.

show abstract

Influence of exposure to electromagnetic field on the cardiovascular system

Cited by 30 publications

References 37 publications

Radical Scavengers Suppress Low Frequency EMF Enhanced Proliferation in Cultured Cells and Stress Effects in Higher Plants

Radical Scavengers Suppress Low Frequency EMF Enhanced Proliferation in Cultured Cells and Stress Effects in Higher Plants

A literature review: the cardiovascular effects of exposure to extremely low frequency electromagnetic fields

ANTI-HYPERCHOLESTEROLEMIA ACTIVITY OF ETHANOL EXTRACT Peperomia pellucid

Contact Info

Product

Resources

About