S100A8 and Duchenne muscular dystrophy: Furthermore, proteins related to the immune system and wound healing like complement component C7 (C7), protein S100-A8 (S100A8), Toll-interacting protein (TOLLIP), glutathione peroxidase 1 (GPX1), and the platelet-activating factor acetylhydrolase (PLA2G7) were increased in the heart samples of 3-month-old DMD animals.