Melatonin Reduces Oxidative Stress And Cardiovascular Changes Induced By Stanozolol In Rats Exposed To Swimming Exercise [melatonin Yüzme Egzersizine Maruz Kalan Farelerde Stanozololün Yol Açti{dotless}ǧi{dotless} Oksidatif Stres Ve Kalp-damar Deǧişikliklerini Azalti{dotless}r]

dc.creatorBarbosa dos Santos G.
dc.creatorJose Machado Rodrigues M.
dc.creatorMaria Goncalves E.
dc.creatorCristina Cintra Gomes Marcondes M.
dc.creatorArcanjo Areas M.
dc.date2013
dc.date2015-06-25T19:18:25Z
dc.date2015-11-26T15:16:15Z
dc.date2015-06-25T19:18:25Z
dc.date2015-11-26T15:16:15Z
dc.date.accessioned2018-03-28T22:26:06Z
dc.date.available2018-03-28T22:26:06Z
dc.identifier
dc.identifierEurasian Journal Of Medicine. , v. 45, n. 3, p. 155 - 162, 2013.
dc.identifier13088734
dc.identifier10.5152/eajm.2013.33
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84885718103&partnerID=40&md5=2ff6696f3ea377c98643b17936c4f456
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/89737
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/89737
dc.identifier2-s2.0-84885718103
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1259218
dc.descriptionObjective: Anabolic-androgenic steroids (AAS) are nominated for clinical use to promote protein synthesis in many therapeutic conditions. However, the indiscriminate use of AAS is related to hazardous cardiac disturbances and oxidative stress. We designed a study to investigate whether prolonged treatment with high doses of stanozolol modifies the activities of some antioxidant enzymes in the heart in sedentary and trained rats and whether this treatment causes alterations of cardiovascular parameters. In addition, the effectiveness of melatonin as an antioxidant and as a modulator of the cardiovascular side effects of stanozolol (STA) treatment was analyzed. Materials and Methods: Thirty male Wistar rats were divided into the following six groups: sedentary (S), stanozolol sedentary (SS), stanozolol-melatonin sedentary (SMS), trained (T), stanozolol trained (ST) and stanozolol-melatonin trained (SMT). The stanozolol-treatment rats received 5 mg.kg-1 by subcutaneous injection before each exercise session (5 d.wk-1, i.e., 25 mg.kg-1.wk-1), while control groups received only saline solution injection. The melatonin-treatment groups received intraperitoneal injections of melatonin (10 mg.kg-1), 5 d.wk-1 for 6 wk. Electrocardiography, blood pressure and antioxidant enzyme activity measurements were performed at the end of the experimental period for cardiac function and molecular assessment. Results: This is the first time that the in vivo effects of melatonin treatment on stanozolol-induced cardiovascular side effects have been studied. Stanozolol induced bradycardia and significantly increased cardiac superoxide dismutase and catalase activities. Trained stanozolol-treated rats experienced an increase in blood pressure and relative heart weight, and they developed left cardiac axis deviation. Although melatonin did not prevent cardiac hypertrophy in exercised stanozolol-treated animals, it maintained blood pressure and cardiac catalase activity, and it prevented stanozolol-induced cardiac electrical axis deviation. Conclusion: In conclusion, under our experimental conditions, chronic stanozolol administration induced mild cardiovascular side effects that were partly attenuated by melatonin treatment. However, these results showed that the combination of melatonin and exercise could minimize the stanozolol side effects in the cardiovascular system.
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dc.languageen
dc.language
dc.publisher
dc.relationEurasian Journal of Medicine
dc.rightsfechado
dc.sourceScopus
dc.titleMelatonin Reduces Oxidative Stress And Cardiovascular Changes Induced By Stanozolol In Rats Exposed To Swimming Exercise [melatonin Yüzme Egzersizine Maruz Kalan Farelerde Stanozololün Yol Açti{dotless}ǧi{dotless} Oksidatif Stres Ve Kalp-damar Deǧişikliklerini Azalti{dotless}r]
dc.typeArtículos de revistas


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