Xu S, Okano H, Ohkubo C
Department of Physiological Hygiene, National Institute of Public Health, Tokyo, Japan.
In Vivo. 1998 Jul-Aug;12(4):383-9.
The subchronic effects of locally applied of static magnetic fields (SMF) on the cutaneous microcirculation within the rabbit ear chamber (REC) were evaluated under conscious conditions. The microcirculatory vasomotion within a REC was measured continuously and analyzed multilaterally by microphotoelectric plethysmography and an image shearing monitor. A SMF, a 180 mT (milli Tesla) cylindlical samarium-cobalt permanent magnet was attached on REC for 24 hours to 4 weeks Exposure to SMF for 1-3 weeks significantly induced long-lasting vasodilation with enhanced vasomotion as compared to control group. Thereafter the active vasomotion of SMF group was depressed and/or returned to initial values and there was no difference between SMF and control groups. The results suggest that the subchronic exposure of SMF can bidirectionally modulate microcirculatory vasomotion in cutaneous tissue.
在清醒状态下评估了局部施加静磁场（SMF）对兔耳腔（REC）内皮肤微循环的亚慢性影响。通过显微光电体积描记法和图像剪切监测仪连续测量REC内的微循环血管运动，并进行多方面分析。将一个180 mT（毫特斯拉）的圆柱形钐钴永磁体作为SMF贴附在REC上24小时至4周。与对照组相比，暴露于SMF 1 - 3周显著诱导了持久的血管舒张，并增强了血管运动。此后，SMF组的主动血管运动受到抑制和/或恢复到初始值，且SMF组与对照组之间没有差异。结果表明，SMF的亚慢性暴露可双向调节皮肤组织中的微循环血管运动。
