Morphological evaluation of MRC-5 fibroblasts after stimulation with static magnetic field and pulsating electromagnetic field.

The quality of tissue repair and the speed with which that repair can be accomplished are the two major variables in the healing of any injury. Today, magnetic field exposure to traumatized areas has shown to be a promising tool in the healing process. The exact mode of action by which radiating and unchanging magnetic fields still has to be elucidated. The objective of this study was to evaluate the morphology of MRC-5 fibro-blasts after stimulation with static and pulsating magnetic fields. Under sterile environment, a total of 24 wells were loaded with 50,000 MRC-5 cells each and further divided into three groups. Groups 1 and 2 were exposed to magnetic fields, static and pulsating respectively. Group 3 wells were unexposed and served as the control group. The cells were monitored at 0, 24, 48, and 72 hours and representative views were captured using digital analysis techniques. The live cells were screened for cellular mobility, cell distribution, and cellular morphology (size, shape, lysis, and background). After 72 hours, the supernatants and cells of all three groups were collected and MDA analysis was performed to determine possible cellular damage. Group 1 cells continued to grow at a reasonable rate, but there was substantial cell membrane damage (high MDA levels, p < 0.05). Group 2 cells appeared to be very stressed under these conditions especially at the initial phase (24 hours). In conclusion, the use of pulsating magnetic stimulation can be beneficial in the healing process of soft tissues.