Abstract：
Background: The regulation of microcirculation depends on the dynamic interaction of different factors: the autonomic nervous system plays a pivotal role in the blood flow and acupuncture can modulate it, obtaining different results depending on the site, the frequency, and the intensity of the stimulation. Methods: 18 healthy subjects have been enrolled and have undergone two sessions of electroacupuncture stimulations: one session using high frequency and one with low frequency. Microcirculation has been monitored continuously during stimulation using the laser Doppler method. Results: The microcirculatory parameters have shown a significant difference between high and low-frequency stimulation, suggesting that low-frequency stimulation is more effective for obtaining a vasodilator effect. Discussion: Our results show that low-frequency stimulation can increase the cutaneous microcirculatory flux, without significantly modifying blood pressure and heart rate. The auricular stimulation causes an increase in the activity of the vagus nerve, increasing the cholinergic activity without acting on post-junctional muscarinic receptors. Conclusion: Auricular acupuncture has a significant impact on the regulation of microcirculation.
摘要：
背景：微循环的调节取决于不同因素的动态相互作用：自主神经系统在血液流动中起着举足轻重的作用，针刺可以调节它，根据网站获得不同的结果，频率,和刺激的强度。方法：18名健康受试者参加了两次电针刺激：一次使用高频，一次使用低频。使用激光多普勒方法在刺激期间连续监测微循环。结果:高频刺激和低频刺激的微循环参数有显著差异,表明低频刺激对于获得血管舒张作用更有效。讨论：我们的结果表明，低频刺激可以增加皮肤微循环通量，没有显著改变血压和心率。耳刺激导致迷走神经活动增加，增加胆碱能活性而不作用于交界后毒蕈碱受体。结论:耳针对微循环调节有显著影响。
