Abstract
Background: Human is daily exposed to electromagnetic field from different source in modern societies with associated health impacts. This experiment aims to study the histological structure of parotid gland after exposure to extremely low frequency magnetic field ELF-MF associated with utility grid 50/60 Hertz (Hz) and to detect the possible role of Vitamin E supplementation. Materials and methods: Thirty adult male albino rats were classified into three groups: Group (I) was control animals, group (II) and (III) were exposed to ELF-MF (50 Hz and 100 – 300 mili Tesla (mT)). Animals of group III were supplemented with daily doses of vitamin E directly before exposure to ELF-MF. Light and electron microscope examination of parotid glands were done. Results: Degeneration of parotid gland acini and ducts together with cellular infiltrations, fibrosis and mucous transformation of the acinar cells were detected after exposure to ELF-MF. These changes were limited with vitamin E supplementation in group III. So, exposure to ELF-MF leads to parotid gland affection which could be tolerated with vitamin E supplementation.
Highlights
Electromagnetic fields (EMFs) are a class of non ionizing radiation that is invisible line of force present everywhere in our environment and produced by electrically charged objects [1]
It is impossible to avoid exposure to EMFs produced by power lines and many kinds of electrical appliance and underground cables [4]
Based on higher radiosensitivity of the parotid gland over the submandibular when exposed to radiation [11] and the association of oxidative stress with the mechanism of EMFs induced damage [12,13] and radioprotective effect of vitamin E [8] together with its role as antioxidant against EMFs [14], this study aimed to detect the histological changes of parotid gland after exposure to ELF-MF and the possible role of using antioxidant vitamin E in prevention of hazards of exposure
Summary
Electromagnetic fields (EMFs) are a class of non ionizing radiation that is invisible line of force present everywhere in our environment and produced by electrically charged objects [1]. It is impossible to avoid exposure to EMFs produced by power lines and many kinds of electrical appliance and underground cables [4]. Human is daily exposed to electromagnetic field from different source in modern societies with associated health impacts. This experiment aims to study the histological structure of parotid gland after exposure to extremely low frequency magnetic field ELF-MF associated with utility grid 50/60 Hertz (Hz) and to detect the possible role of Vitamin E supplementation
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