【摘要】 目的探讨微波辐射对红色毛癣菌、犬小孢子菌、须癣毛癣菌杀抑的效应。方法采用ME7250型、频率2450MHz的医用微波仪,分别以输出功率为20,40,60W的微波,辐射接种后的红色毛癣菌、犬小孢子菌、须癣毛癣菌,并对其生长情况进行实验室观察。将接种的红色毛癣菌、犬小孢子菌、须癣毛癣菌的试管,分别按不同的辐射时间、辐射次数分为辐射10,15,20min三大组;每一辐射时间档中分为辐射1,3,6,9次的组别。按设计分组辐射完成后,置27℃恒温箱内。30d后,观察试管内菌落的生长情况,并在显微镜下对其生物学形态进行观察。结果输出功率20W的微波辐射无明显的杀抑效应。输出功率40W的微波辐射10min,15min有抑菌的效应;辐射20min有较明显抑菌的效应。输出功率60W的微波辐射10min,有较明显抑菌的效应,辐射15min,20min显现杀菌效应。结论输出功率40W的微波辐射有抑菌的效应。输出功率60W、频率2450MHz的微波辐射红色毛癣菌、犬小孢子菌、须癣毛癣菌,有明显的抑制生长和杀菌作用,效应随辐射强度的增大而增强。更多还原

【Abstract】 Objective To study the inhibiting and killing effects of microwave diathermy on some epidermophytosis fungi. Methods The cultured T. rubrum, M. canis and T. mentagrophytes were irradiated with a therapeutic microwave diathermy apparatus with the frequency of 2 450 MHz and power of 20 W, 40 W and 60 W, respectively. Each fungus was divided into different groups according to the duration of irradiation each time (eg.10, 15 and 20 minutes), and times of irradiation (eg. 1, 3, 6 and 9 times). All the samples of the fungi were cultured at 27℃ for 30 days after radiation and then observed under microscope. Results It was shown that 20 W of microwave had no inhibiting or killing effect on the various fungi studied; 10, 15 and 20 minutes of irradiation with 40 W microwave could inhibit the growth of the various fungi; 15 and 20 minutes of irradiation with 40 W microwave had significant killing effect on the various fungi. Conclusion Microwave of 2 450 MHz and 40 W had significant inhibiting effects while 60 W microwave had significant killing effects on the T. rubrum, M. canis and T. mentagrophytes in the condition of the experiment. The inhibiting and killing effect was dose-dependent on the microwave irradiation.更多还原