Furmaniak A
Bioelectromagnetics. 1983;4(1):55-62. doi: 10.1002/bem.2250040106.
Na+, K+, and Ca2+ concentrations in the blood serum and submaxillary salivary gland (SSG) were investigated in adult, male rats exposed to 2880-MHz microwaves modulated with 1.5-mus pulses at a pulse repetition rate of 1000 Hz or in a hyperthermal environment. Rats were exposed, one at a time, for 30 min to microwaves producing a specific absorption rate (SAR) of: 4.2, 6.3, 6.8, 8.4, 10.8, or 12.6 W/kg, or were sham exposed under similar environmental conditions. In a second series, one group of rats was exposed singly for 15, 30, or 60 min to microwaves producing an SAR of 9.5 W/kg and other rats were exposed for similar periods at 40 degrees C; and 10 rats were sham exposed. Flame photometric analysis indicated that the thresholds of microwave radiation required to induce a change in Na+, K+, and Ca2+ concentrations in the salivary glands are 6.8, 6.8, and 6.3 W/kg, respectively. The directions of Na+, K+, and Ca2+ ion shifts in exposed rats' salivary glands are similar, whether affected by microwaves or hyperthermia. Greater changes in Na+ and K+ concentrations in SSG of rats exposed to microwaves for 15 and 30 min were found than in those exposed at 40 degrees C. On the other hand, exposure to hyperthermia at 40 degrees C or to microwaves for 1 h caused Na+ concentration to be increased by 68.7 and 59.5% and K+ concentration to be decreased by 29.6 and 21.7%, respectively.
研究了成年雄性大鼠在暴露于以1000Hz脉冲重复频率调制的1.5微秒脉冲的2880MHz微波或处于高温环境下时血清和颌下唾液腺（SSG）中的Na +、K +和Ca2 +浓度。大鼠每次暴露30分钟于产生特定吸收率（SAR）为4.2、6.3、6.8、8.4、10.8或12.6W/kg的微波下，或在类似环境条件下进行假暴露。在第二个系列中，一组大鼠单独暴露15、30或60分钟于产生9.5W/kg SAR的微波下，其他大鼠在40℃下暴露相同时间；10只大鼠进行假暴露。火焰光度分析表明，诱导唾液腺中Na +、K +和Ca2 +浓度变化所需的微波辐射阈值分别为6.8、6.8和6.3W/kg。暴露大鼠唾液腺中Na +、K +和Ca2 +离子转移的方向相似，无论受微波还是热疗影响。发现暴露于微波15和30分钟的大鼠SSG中Na +和K +浓度的变化比在40℃下暴露的大鼠更大。另一方面，在40℃下热疗或暴露于微波1小时分别导致Na +浓度增加68.7%和59.5%，K +浓度降低29.6%和21.7%。
