Mikiko Uemura1, Masaharu Sugimoto2, Yoshiyuki Yoshikawa3, Rieko Inoue4. 1. Kansai University of Welfare Sciences, Faculty of Health Science, Department of Rehabilitation, Osaka, Japan. 2. Toyama Rehabilitation Medical Health and Welfare College, Toyama, Toyama. 3. Naragakuen University, Faculty of Heath Science, Department of Rehabilitation, Ikoma, Nara. 4. Department of Rehabilitation, Yoshida Hospital, Kobe, Japan.
Abstract
Background: Electrical stimulation (ES) therapy is recommended for healing pressure injuries. Monophasic pulsed microcurrent stimulation promotes the migration of human dermal fibroblasts (HDFs) to the cathode, and ES potentially accelerates pressure injury healing. A reverse current is generated after ES in the human body; however, the effects of the electrical shunt in preventing the reverse current from migrating are unclear. Therefore, this study aimed to investigate the effects of an electrical shunt on the migration of HDFs. Methods: In the shunt groups, HDFs were electrically stimulated (0, 200, 400, and 600 µA) for 8 hours, and an electrical shunt was used to remove the electricity after ES. HDFs were observed under time-lapse microscopy for 24 hours. The migration ratio toward the cathode was calculated for each dish. Results: The migration ratio was significantly higher in the 200-µA group than in the other groups. HDFs migrated toward the anode after ES in the non-shunt groups with greater than 400 µA ES; however, HDFs did not migrate toward the anode with electrical shunting. Conclusions: A post-ES electrical shunt is important in preventing a decline in the migration effect of ES.
Background: Electrical stimulation (ES) therapy is recommended for healing pressure injuries. Monophasic pulsed microcurrent stimulation promotes the migration of human dermal fibroblasts (HDFs) to the cathode, and ES potentially accelerates pressure injury healing. A reverse current is generated after ES in the human body; however, the effects of the electrical shunt in preventing the reverse current from migrating are unclear. Therefore, this study aimed to investigate the effects of an electrical shunt on the migration of HDFs. Methods: In the shunt groups, HDFs were electrically stimulated (0, 200, 400, and 600 µA) for 8 hours, and an electrical shunt was used to remove the electricity after ES. HDFs were observed under time-lapse microscopy for 24 hours. The migration ratio toward the cathode was calculated for each dish. Results: The migration ratio was significantly higher in the 200-µA group than in the other groups. HDFs migrated toward the anode after ES in the non-shunt groups with greater than 400 µA ES; however, HDFs did not migrate toward the anode with electrical shunting. Conclusions: A post-ES electrical shunt is important in preventing a decline in the migration effect of ES.
Authors: Jean Dubé; Olivier Rochette-Drouin; Philippe Lévesque; Robert Gauvin; Charles J Roberge; François A Auger; Daniel Goulet; Michel Bourdages; Michel Plante; Lucie Germain; Véronique J Moulin Journal: Tissue Eng Part A Date: 2010-10 Impact factor: 3.845
Authors: Véronique J Moulin; Jean Dubé; Olivier Rochette-Drouin; Philippe Lévesque; Robert Gauvin; Charles J Roberge; François A Auger; Daniel Goulet; Michel Bourdages; Michel Plante; Lucie Germain Journal: Adv Wound Care (New Rochelle) Date: 2012-04 Impact factor: 4.730