| Literature DB >> 22173821 |
André Luiz Machado Viana1, Miriam das Dores Mendes Fonseca, Elisson Lamin Jerônimo Meireles, Stella Maris da Silveira Duarte, Maria Rita Rodrigues, Fernanda Borges de Araujo Paula.
Abstract
Many authors attribute the antioxidant activity of brewed coffee to its caffeine content. In addition, caffeine intake has been associated with increased performance during physical exercise. This study analyzed the in vivo effects of drinking caffeinated and decaffeinated instant coffee (8%, w/v) on oxidative stress and antioxidant enzyme activity in the anterior tibialis muscles of rats subjected to intense exercise. It was observed that exercise induced lipid peroxidation (estimated using malondialdehyde) and protein oxidation (evaluated by determining the formation of carbonyl groups) in the muscle (P < 0.05). Decaffeinated instant coffee and caffeine solution did not exhibit antioxidant activity in vivo. Caffeinated instant coffee beverage intake did not induce changes in superoxide dismutase and glutathione peroxidase activities but was able to diminish lipid and protein oxidation in the anterior tibialis muscles of rats after exercise (P < 0.05), contributing to a reduction in the oxidative stress triggered by exercise.Entities:
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Year: 2012 PMID： 22173821 DOI： 10.1007/s11130-011-0267-8
Source DB: PubMed Journal: Plant Foods Hum Nutr ISSN： 0921-9668 Impact factor: 3.921