Epinephrine, DNA integrity and oxidative stress in workers exposed to extremely low-frequency electromagnetic fields (ELF-EMFs) at 132 kV substations.
There is apprehension about widespread use of electrical and electromagnetic gadgets which are supposed to emit electromagnetic radiations. Reports are controversy. These electromagnetic fields (EMFs) have considerable effect on endocrine system of exposed subjects. This study was focused to assess the possible bioeffects of extremely low-frequency (ELF)-EMFs on epinephrine level, DNA damage and oxidative stress in subjects occupationally exposed to 132 kV high-voltage substations. The blood sample of 142 exposed subjects and 151 non-exposed individuals was analyzed. Plasma epinephrine was measured by enzyme-linked immunosorbent assay, DNA damage was studied by alkaline comet assay along with oxidative stress. Epinephrine levels of sub-groups showed mean concentration of 75.22  ±  1.46, 64.43  ±  8.26 and 48.47  ±  4.97 for high, medium and low exposed groups, respectively. DNA damage ranged between 1.69 µm and 9.91 µm. The oxidative stress levels showed significant increase. The individuals employed in the live-line procedures were found to be vulnerable for EM stress with altered epinephrine concentrations, DNA damage and increased oxidative stress.
UGC-Research Unit, Bhavan's New Science College , Hyderabad, Andhra Pradesh , India .
Ravindra
R
Tiwari
N K
NK
Lakshmi
S C
SC
Bhargava
Y R
YR
Ahuja
D000328:Adult; D015415:Biomarkers / Q000097:blood; D004249:DNA Damage; D011211:Electric Power Supplies; D004574:Electromagnetic Fields / Q000009:adverse effects*; D004837:Epinephrine / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D008875:Middle Aged; D009569:Nitric Oxide / Q000097:blood; D016273:Occupational Exposure / Q000009:adverse effects*; D018384:Oxidative Stress / Q000528:radiation effects*; D055815:Young Adult
D015415:Biomarkers; D009569:Nitric Oxide; D008315:Malondialdehyde; D004837:Epinephrine
132 kV substation; ELF-EMFs; comet assay; epinephrine; oxidative stress