To study the effects of microwaves on a membrane protein channel, the acetylcholine receptor-channel, in cultured chick myotubes.
Acetylcholine-induced currents have been recorded via patch-clamp techniques using both cell-attached (single-channel current recording) and whole-cell (total current recording) configurations.
Modulation type: CW
Exposure duration: 30 s to 120 s
|Exposure duration||30 s to 120 s|
|Distance between exposed object and exposure source||0.25 m|
|power density||50 µW/cm²||unspecified||calculated||-||-|
During the exposure to low-power microwaves the frequency of the acetylcholine-activated single channel openings decreased, while the acetylcholine-induced total current showed a faster falling phase. Channel open time and conductance were not influenced by microwave exposure. The authors concluded that exposure to microwaves increases the rate of desensitization and decreases the channel opening probability.