To study the effects of different electromagnetic fields on some haematochemical parameters of circadian rhythms in rats.
The study was carried out in 18 male and 18 female rats exposed to 50 Hz sinusoid magnetic fields (at magnetic flux densities of 1000 µT, 100 µT, and 0 µT (control group); six rats per group), and in 18 male and 18 female rats exposed to 1.8 GHz electromagnetic fields (at the intensity of 50 V/m, 25 V/m and 0 V/m (control group); six rats per group).
Blood was collected every three hours for 24 h from rats exposed to extremely low frequency electromagnetic fields at 84 weeks of age and from those exposed to radiofrequency electromagnetic fields at 56 weeks of age.
Exposure | Parameters |
---|---|
Exposure 1:
50 Hz
Exposure duration:
continuous for 19 hr/day - number of exposure days not given in this article
|
|
Exposure 2:
1.8 GHz
Exposure duration:
continuous for 19 hr/day - number of exposure days not given in this article
|
|
Frequency | 50 Hz |
---|---|
Type | |
Waveform | |
Exposure duration | continuous for 19 hr/day - number of exposure days not given in this article |
Exposure source |
|
---|---|
Setup | 41 cm x 26 cm x 15 cm macrolon cage with stainless-steel wire top |
Sham exposure | A sham exposure was conducted. |
Measurand | Value | Type | Method | Mass | Remarks |
---|---|---|---|---|---|
magnetic flux density | 100 µT | - | - | - | - |
magnetic flux density | 1,000 µT | - | - | - | - |
Frequency | 1.8 GHz |
---|---|
Type | |
Exposure duration | continuous for 19 hr/day - number of exposure days not given in this article |
Exposure source |
|
---|---|
Setup | 41 cm x 26 cm x 15 cm macrolon cage with plastic top placed in an anechoic room |
Sham exposure | A sham exposure was conducted. |
Measurand | Value | Type | Method | Mass | Remarks |
---|---|---|---|---|---|
electric field strength | 25 V/m | - | - | - | - |
electric field strength | 50 V/m | - | - | - | - |
Different effects of electromagnetic fields on circadian rhythms of both male and female rats were found. Different changes occurred in some haematochemical parameters for glucose, triglycerides, and total cholesterol.
The authors conclude that exposure to different electromagnetic fields is responsible for the variations of some haematochemical parameters in rats.
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