To study the effects of mobile phones on the oxidant/antioxidant balance in corneal and eye lens tissues of rats and to observe any protective effects of vitamin C.
40 rats were assigned to one of four groups containing 10 rats each: 1) mobile phone exposure alone, 2) mobile phone exposure along with a daily oral dose of vitamin C (250 mg/kg), 3) vitamin C alone, 4) cage control.
Exposure | Parameters |
---|---|
Exposure 1:
900 MHz
Modulation type:
pulsed
Exposure duration:
intermittent, 4 x 10 min/day, for 4 weeks
|
|
Frequency | 900 MHz |
---|---|
Type | |
Exposure duration | intermittent, 4 x 10 min/day, for 4 weeks |
Exposure source | |
---|---|
Distance between exposed object and exposure source | 10 cm |
Chamber | The rats could move freely in their group-cages. |
Setup | The mobile phones were just above the cages. |
Additional info | The mobile phones were in standby position and called four times a day for 10 min. |
Measurand | Value | Type | Method | Mass | Remarks |
---|---|---|---|---|---|
SAR | 1.2 W/kg | - | - | - | - |
In corneal tissue, malondialdehyde level and catalase activity significantly increased in the mobile phone exposed group compared with the "mobile phone plus vitamin C group" and the control group. Superoxide dismutase activity was significantly decreased.
In the eye lens tissues, only the malondialdehyde concentration significantly increased in the mobile phone exposed group relative to "mobile phone plus vitamin C group" and the control group. In eye lens tissue, significant differences were not found between the groups in terms of the different enzyme activities.
The data suggest that mobile telephone exposure leads to oxidative stress in corneal and eye lens tissues and that antioxidants such as vitamin C can help to prevent these effects.
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