2018
DOI: 10.29262/ram.v65i1.306
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Vitaminas antioxidantes en asma

Abstract: Asthma is a condition of unknown etiology characterized by chronic airway inflammation. Cells that mediate the inflammatory response generate reactive oxygen species that, together with other respiratory tract naturally-occurring oxidant species, produce a rupture of the redox balance, generating oxidative stress. It has been proposed that oxidative stress can be reverted by supplemental or dietary intake of antioxidant vitamins such as vitamin A, C, D and E, and this way relieve, improve or protect people wit… Show more

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Cited by 8 publications
(4 citation statements)
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“…Regarding antioxidant defenses, despite increased levels of GSH in the airways, the ratio of oxidized to reduced GSH also increases [57]. Other antioxidants such as ascorbate and alpha-tocopherol decrease [122,123], and SOD activity, but not SOD quantity [39], is likewise diminished [124][125][126][127][128][129]. Catalase activity is suppressed [130,131].…”
Section: Asthmamentioning
confidence: 99%
“…Regarding antioxidant defenses, despite increased levels of GSH in the airways, the ratio of oxidized to reduced GSH also increases [57]. Other antioxidants such as ascorbate and alpha-tocopherol decrease [122,123], and SOD activity, but not SOD quantity [39], is likewise diminished [124][125][126][127][128][129]. Catalase activity is suppressed [130,131].…”
Section: Asthmamentioning
confidence: 99%
“…For example, Apocynin and SOD decrease O2-, [64] and, in the presence of NO, ONOOH; catalase de-creases levels of H2O2 [65]. Glutathione and vitamins A, C, E and β-carotenes can have more generalized antioxidant effects [66][67][68]. We have shown that treatment with either apocynin or SOD treatment increases headspace NO over DNAH11 PCD cells [7].…”
Section: Antigen Stasis Leading To Oxidant Generation Is Increased In...mentioning
confidence: 77%
“…In particular, eosinophil peroxidase released during allergic inflammatory responses provokes oxidative damage in resident lung proteins [ 19 ]. To decrease oxidative damage, enzymatic elements, such as superoxide dismutase, catalase and glutathione peroxidase, and non-enzymatic compounds, such as vitamins A and C, play a role in the antioxidant defense mechanisms of the lung [ 19 20 ]. AR and asthma have similar immunopathological features [ 21 ].…”
Section: Discussionmentioning
confidence: 99%