Low frequency magnetic stimulation restores stress-induced reduction of the blood fluidity in rats

Abstract

We reported that restraint or electrical shock stress reduced blood fluidity of rats estimated by MC-FAN(micro channel flow analyzer), which mimics capillary vessel and low frequency magnetic stimulation augmented the blood fluidity. Therefore we attempt to study the restoration effect of low frequency magnetic stimulation on reduced blood fluidity by stress. The restoration from reduction of blood fluidity by electrical shock stress (1Hz, duration: 10nsec, 70-110V, for 1 hour) was accelerated by magnetic stimulation (50Hz, about 45mT). Adrenergic α agonist reduced the blood fluidity but magnetic stimulation restored the reduction of blood fluidity by α agonist. These results suggest that electrical shock stress may reduce the blood fluidity through adrenergic α mechanism and magnetic stimulation may restore the blood fluidity although through adrenergic α mechanism. [Jpn J Physiol 54 Suppl:S115 (2004)]