RT Journal Article T1 Melatonin Treatment Reduces Oxidative Damage and Normalizes Plasma Pro-Inflammatory Cytokines in Patients Suffering from Charcot-Marie-Tooth Neuropathy: A Pilot Study in Three Children A1 Chahbouni, Mariam A1 del Senor Lopez, Maria A1 Molina-Carballo, Antonio A1 de Haro, Tomas A1 Munoz-Hoyos, Antonio A1 Fernandez-Ortiz, Marisol A1 Guerra-Librero, Ana A1 Acuna-Castroviejo, Dario K1 antioxidant K1 cytokines K1 inflammation K1 melatonin therapy K1 oxidative stress K1 axonal neuropathy K1 Glutathione s-transferases K1 Lipid-peroxidation K1 Skeletal-muscle K1 Mitochondrial dysfunction K1 Cmt disease K1 Stress K1 Antioxidant K1 Expression K1 Molecule K1 Polyneuropathy AB Charcot-Marie-Tooth neuropathy (CMT) is a motor and sensory neuropathy comprising a heterogeneous group of inherited diseases. The CMT1A phenotype is predominant in the 70% of CMT patients, with nerve conduction velocity reduction and hypertrophic demyelination. These patients have elevated oxidative stress and chronic inflammation. Currently, there is no effective cure for CMT; herein, we investigated whether melatonin treatment may reduce the inflammatory and oxidative damage in CMT1A patients. Three patients, aged 8-10 years, were treated with melatonin (60 mg at 21:00 h plus 10 mg at 09:00 h), and plasma levels of lipid peroxidation (LPO), nitrites (NOx), IL-1 beta, IL-2, IL-6, TNF-alpha, INF-gamma, oxidized to reduced glutathione (GSSG/GSH) ratio, and the activities of superoxide dismutase (SOD), glutathione-S transferase (GST), glutathione peroxidase (GPx), and reductase (GRd), were determined in erythrocytes at 3 and 6 months of treatment. Healthy age- and sex-matched subjects were used as controls. The results showed increased activities of SOD, GST, GPx, and GRd in CMT1A patients, which were reduced at 3 and 6 months of treatment. The GSSG/GSH ratio significantly increased in the patients, returning to control values after melatonin treatment. The inflammatory process was confirmed by the elevation of all proinflammatory cytokines measured, which were also normalized by melatonin. LPO and NOx, which also were elevated in the patients, were normalized by melatonin. The results document beneficial effects of the use of melatonin in CMT1A patients to reduce the hyperoxidative and inflammatory condition, which may correlate with a reduction of the degenerative process. PB Mdpi SN 1420-3049 YR 2017 FD 2017-10-01 LK http://hdl.handle.net/10668/19306 UL http://hdl.handle.net/10668/19306 LA en DS RISalud RD Apr 7, 2025