High-frequency electromagnetic radiation and the production of free radicals in four mouse organs
نویسندگان
چکیده
The study was designed to evaluate the effect of high-frequency electromagnetic field (HF EMF) 900 MHz on reactive oxygen species (free radicals) production. The experimental animals (10 mice of C3H strain) were exposed to whole-body irradiation over 14 days (3 hours daily) in a special exposure chamber with the possibility of a specific absorption rate measurement. The 10 control animals were kept in an analogous position (inside the chamber) but in turn-off mode. After the last exposure, four tissue samples (brain, liver, heart, kidney) were immediately stored in liquid nitrogen and transported to a special electron paramagnetic (spin) resonance spectroscopy measurement. In all four tissue samples of irradiated animals, a statistically significant increase (p<0.0025) of hydroxyl radicals concentration was found. These results confirm previous experiments with indirect assessment of free radicals overproduction (made by enzymatic systems depiction) and strongly support the hypothesis about the possible mechanism and/or harmful effect of long-term HF EMF exposure.
منابع مشابه
Investigation of the production of free radicals in ultraviolet irradiation using SnO2:Eu nanoparticles
In studying the ultraviolet (UV) radiation, one of the important factors is the possibility of generating a variety of free radicals inside the body by these radiations. In this paper, a method of estimating the amount of hydroxyl radicals produced by ultraviolet rays was investigated using nanoparticles of tin oxide doped with uropium. In this method, the change in absorption intensity of meth...
متن کاملOriganum vulgare leaf extract protects mice bone marrow cells against ionizing radiation
Objective: Ionizing radiation produces free radicals which induce DNA damage and cell death. Origanum vulgare leaf extract (OVLE) is a natural compound and its capability of scavenging free radicals and its antioxidant activity have been demonstrated by many researchers. In this study, using micronucleus assay, radioprotective effect of OVLE against clastogenic and cytotoxic effect of gamma irr...
متن کاملInvestigating The Effects of Modem Electromagnetic Waves (2.4 GHz) on Electroencephalogram
With respect to the dramatic increasing use of electronically communicators and wireless modems, concerns have been raised about the possible effects of emitted electromagnetic radiation on human brain. In this paper, the effects of high-frequency wireless modem waves on the brain signal are investigated. To this end, the Electroencephalograph (EEG) recording of 15 volunteers is examined in fou...
متن کاملThe Evaluation of Melatonin Effect Against The Early Effect of Ionizing Radiation Induced Lung Injury
Background & Objective: Lung is a radiosensitive organ. Patients who are undergoing radiation therapy in their chest are subjected to radiation pneumonitis in the early phase and pulmonary fibrosis in the late one. Melatonin scavenges free radicals directly and acts as an indirect antioxidant through the activation of major antioxidant enzymes as well. The aim of the study thus is to investiga...
متن کاملHigh Frequency Electromagnetic Field Induces Lipocalin 2 Expression in Mouse Liver
Objective(s) Neutrophil gelatinase-associated lipocalin (NGAL/Lcn2), comprise a group of small extracellular proteins with a common P-sheet-dominated 3-dimensional structure. In the past, it was assumed that the predominant role of lipocalin was acting as transport proteins. Recently it has been found that oxidative stress induces Lcn2 expression. It has been also proved that electromagnetic f...
متن کامل