1
|
Leonardo-Mendonça RC, Ocaña-Wilhelmi J, de Haro T, de Teresa-Galván C, Guerra-Hernández E, Rusanova I, Fernández-Ortiz M, Sayed RK, Escames G, Acuña-Castroviejo D. The benefit of a supplement with the antioxidant melatonin on redox status and muscle damage in resistance-trained athletes. Appl Physiol Nutr Metab 2017; 42:700-707. [DOI: 10.1139/apnm-2016-0677] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Previous data showed that the administration of high doses of melatonin improved the circadian system in athletes. Here, we investigated in the same experimental paradigm whether the antioxidant properties of melatonin has also beneficial effects against exercise-induced oxidative stress and muscle damage in athletes. Twenty-four athletes were treated with 100 mg·day−1 of melatonin or placebo 30 min before bedtime during 4 weeks in a randomized double-blind scheme. Exercise intensity was higher during the study that before starting it. Blood samples were collected before and after treatment, and plasma was used for oxygen radical absorption capacity (ORAC), lipid peroxidation (LPO), nitrite plus nitrate (NOx), and advanced oxidation protein products (AOPP) determinations. Glutathione (GSH), glutathione disulphide (GSSG) levels, and glutathione peroxidase (GPx) and reductase (GRd) activities, were measured in erythrocytes. Melatonin intake increased ORAC, reduced LPO and NOx levels, and prevented the increase of AOPP, compared to placebo group. Melatonin was also more efficient than placebo in reducing GSSG·GSH−1 and GPx·GRd−1 ratios. Melatonin, but not placebo, reduced creatine kinase, lactate dehydrogenase, creatinine, and total cholesterol levels. Overall, the data reflect a beneficial effect of melatonin treatment in resistance-training athletes, preventing extra- and intracellular oxidative stress induced by exercise, and yielding further skeletal muscle protection against exercise-induced oxidative damage.
Collapse
Affiliation(s)
- Roberto C. Leonardo-Mendonça
- Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016-Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016-Granada, Spain
- Department of Nutrition, Atlântica University Higher Institution, Lisbon, Portugal
| | - Javier Ocaña-Wilhelmi
- Departamento de Educación Física y Deportiva, Facultad de Ciencias del Deporte, Universidad de Granada, 18071-Granada, Spain
| | - Tomás de Haro
- Unidad de Gestión Clínica de Laboratorios Clínicos, CIBER de Fragilidad y Envejecimiento, Ibs.Granada, Complejo Hospitalario de Granada, 18016-Granada, Spain
| | - Carlos de Teresa-Galván
- Centro Andaluz de Medicina del Deporte, Granada, and Hospital San Juan de Dios, 18001-Granada, Spain
| | - Eduardo Guerra-Hernández
- Departamento de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Granada, 18011-Granada, Spain
| | - Iryna Rusanova
- Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016-Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016-Granada, Spain
| | - Marisol Fernández-Ortiz
- Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016-Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016-Granada, Spain
| | - Ramy K.A. Sayed
- Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016-Granada, Spain
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Sohag University, Sohag, Egypt
| | - Germaine Escames
- Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016-Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016-Granada, Spain
- Unidad de Gestión Clínica de Laboratorios Clínicos, CIBER de Fragilidad y Envejecimiento, Ibs.Granada, Complejo Hospitalario de Granada, 18016-Granada, Spain
| | - Darío Acuña-Castroviejo
- Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016-Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, 18016-Granada, Spain
- Unidad de Gestión Clínica de Laboratorios Clínicos, CIBER de Fragilidad y Envejecimiento, Ibs.Granada, Complejo Hospitalario de Granada, 18016-Granada, Spain
| |
Collapse
|