1) Studies of lymphocytes, and of macrophages in response to different power levels of radiation at 2450 MHz for different durations of exposure in mice, and 2) studies on hematopoietic cells at a power density of 15 mW/cm² are reported.
| Exposure | Parameters |
|---|---|
|
Exposure 1:
2,450 MHz
Modulation type:
CW
Exposure duration:
repeated daily exposure, 30 min/day, for up to 17 days
|
|
| Frequency | 2,450 MHz |
|---|---|
| Type | |
| Charakteristic | |
| Exposure duration | repeated daily exposure, 30 min/day, for up to 17 days |
| Modulation type | CW |
|---|
| Exposure source |
|
|---|---|
| Setup | The mice were placed unrestrained in individual ventilated polyethylene containers (6 x 6 x 6 cm), four of which were placed in a diamond pattern in the exposure chamber. |
| Sham exposure | A sham exposure was conducted. |
| Additional info | Age-matched control animals were treated simultaneously in the same manner in a sham exposure chamber. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| power density | 15 mW/cm² | - | - | - | in most experiments |
| SAR | 11 mW/g | - | measured | - | at 15 mW/cm² |
| power density | 5 mW/cm² | - | - | - | - |
| power density | 30 mW/cm² | - | - | - | - |
A sustained activation of tissue macrophages resulting in suppression of lymphocyte responsiveness and a gradual but temporary stimulation directed to the lymphocytes. Macrophage activation may have caused the early depression of the lymphocyte responsiveness. The study of the other lymphocyte function (i.e. killing of tumor cells) did not show any obvious influence. The radiation affects hematopoietic colony-forming abilities (growth of both erythroid and myeloid cells are altered).
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