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No thermal effect of GSM Electromagnetic Waves Exposure on edl rat skeletal muscles
Author(s) -
Shouaib Sara,
Ramadan Wiam,
Ibreik Aida,
Khachfe Hassan,
Jbai Fatima,
Joumaa Wissam
Publication year - 2012
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.26.1_supplement.1078.9
Subject(s) - myofibril , chemistry , gsm , population , microbiology and biotechnology , biophysics , biology , biochemistry , medicine , telecommunications , environmental health , computer science
One of the important challenges developed recently and could affect health is the population exposure to electromagnetic waves (EMW), particularly the ‘Global System of Mobile Communication signals’, GSM signals (1). GSM are emitted from many sources as like cell phones and base stations antenna. We investigate the effects of EMW radiation emitted from GSM mobile phones antenna (frequency at 900 MHz, E eff = 25 V/m) on edl muscle myofibrillar proteins. Animals body weight was not affected by 6 weeks of continuous 24 hours exposure, but edl absolute muscle mass was increased by 10.5% (control: 0.1744±0.00252, exposed: 0.1927±0.00291, n=12, p<0.05). Since myofibrillar proteins content is directly proportional to muscle mass (2), protein dosage using the Bradford technique was performed and protein concentration was calculated in mg/g of muscle. An increase by 59% in edl myofibrillar protein content after the period of exposure was observed (control: 20.11±1.59, exposed: 31.97±2.81, n=12, p<0.05). The analysis of MHC isoforms by SDS‐PAGE as already described by Talmadge et al. (3) shows an increasing by 431.54% in MHC I, 35.08% in MHC II a a decreasing by 16.34% in MHC II b without a significant modification in the percentage of expression of MHC II x/d (n=12 and p<0.05). Thus, 6 weeks of continuous whole body exposure to EMW can induce a no thermal effect in myofibrillar proteins of fast‐ twitch mammalian skeletal muscles.