Effects of alternately aligned static micromagnetic fields on intravascular endothelial lining

Effect of alternately aligned static micromagnetic fields on intravascular endothelial linings were investigated in 32 common carotid arteries of mongrel dogs. Endothelia of bilateral carotid arteries were mechanically denuded 5 cm in length, and as a general rule, 1 denuded artery was wrapped by a 1- or 5-cm-long film of alternately aligned static micromagnetic fields with 250 gauss/cm2 and the artery on other side (control) was not wrapped. The arteries were excised at weeks 1, 2, 3, 4, 5, 6, and 8 after endothelial denudation in order to examine the intraluminal surfaces of the distal, intermediate, and proximal portions of the specimen by light and scanning electron microscopy. Histopathologically, all the distal and proximal portions in each group were well lined with endothelium. There was, however, a significant difference between the experimental and control groups in the endothelial regeneration of the intermediate portion. Endothelial coverage of the serial specimens of the experimental group was found to occur earlier than that of the control group. Alternately aligned static micromagnetic fields accelerated the intravascular endothelial linings.