کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10872837 | 1074252 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Both oxidative and nitrosative stress are associated with muscle wasting in tumour-bearing rats
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Reactive oxygen and nitrogen species (ROS and RNS) have been proposed as mechanisms of cancer-induced cachexia. In this study, we assessed using Western blot analysis the levels of total protein carbonylation (2,4-dinitrophenylhydrazine assay), both malondialdehyde- (MDA-) and 2-hydroxy-4-nonenal- (HNE-) protein adducts, Mn-superoxide dismutase (Mn-SOD), catalase, heme oxygenase-1 (HO-1) and 3-nitrotyrosine formation in gastrocnemius muscles of rats bearing the Yoshida AH-130 hepatoma. In the muscles of the tumour-bearing animals, protein carbonylation as measured by total levels of carbonyl group formation and both HNE and MDA-protein adducts, and protein tyrosine nitration were significantly greater than in control muscles. Protein levels of the antioxidant enzymes Mn-SOD, catalase, and HO-1 were not significantly modified in the rat cachectic muscles compared to controls. The inefficiency of the antioxidant enzymes in neutralizing excessive ROS production may account for elevated markers of protein oxidation and be responsible for the development of both oxidative and nitrosative stress in cancer-induced cachexia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 579, Issue 7, 14 March 2005, Pages 1646-1652
Journal: FEBS Letters - Volume 579, Issue 7, 14 March 2005, Pages 1646-1652
نویسندگان
Esther Barreiro, Beatriz de la Puente, SÃlvia Busquets, Francisco J. López-Soriano, Joaquim Gea, Josep M. Argilés,