Nanocarbon-Driven Recovery of Mechano-Kinetic Properties of Injured Rat Gastrocnemius Muscle

Traumatic muscle injuries often lead to prolonged functional impairments due to oxidative stress, metabolic disturbances, and structural damage. This study investigates the therapeutic potential of chronic administration of C₆₀ fullerene aqueous (C₆₀FAS) solutions in enhancing muscle recovery post-injury. Rats with experimentally induced gastrocnemius muscle trauma received C₆₀FAS orally at a daily dose of 1 mg/kg body weight. Functional assessments included measurements of maximal force generation and time to peak contraction. Biochemical analyses evaluated lactate, superoxide dismutase (SOD), and catalase (CAT) levels, while histological examinations assessed muscle fiber integrity and collagen deposition. Results demonstrated significant improvements in muscle function, with a 35-40% increase in maximal force and a 27-38% acceleration in contraction time. Biochemical analysis revealed a 25% decrease in lactate concentration, potentially indicating improved metabolic function. This change is in line with normalized SOD and CAT activities, suggesting enhanced redox balance following treatment. Histological analyses revealed preserved myofibrillar architecture and reduced fibrosis in treated muscles. These findings suggest that C₆₀ fullerene facilitates muscle recovery through antioxidant protection, metabolic support, and structural preservation, highlighting its potential as a therapeutic agent for muscle injuries.