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Oxidative stress and protein modifications are frequently observed in numerous disease states.Glucose constitutes a vital nutrient necessary to cellular oxygen metabolism. However, hyperglycemia-associated damage is an important factor in diabetes disorders.Albumin, the major circulating protein in blood, can undergo increased glycation in diabetes. From recent studies, it has become evident that...
Although biochemical properties of 2-Cys peroxiredoxins have been extensively studied in various cell lines and organisms, redox-induced structural transitions of peroxiredoxin II (PrxII) in human erythrocytes certainly warrant further investigation. In this work, cytosol and membrane ghosts of both fresh erythrocytes (cells obtained just after blood collection) and 28-day stored erythrocytes were...
A substantial part of soluble, oxidized proteins are degraded by the proteasome. However, it is still under debate whether these oxidized proteins are degraded by the 26S proteasome in an ubiquitin-dependent way or in an ubiquitin-independent way by the 20S proteasome. Therefore, we treated cells with H 2 O 2 and UV-A irradiation and detected protein carbonyls and ubiquitination by...
The development of various gastrointestinal diseases was suggested to be associated with chronic inflammation as a consequence of Helicobacter pylori (H. pylori) infection. Our previous studies showed that an antioxidant protein alkylhydroperoxide reductase (AhpC) is an abundant and important antioxidant protein present in H. pylori. In this study we have explored the potential of utilizing antibodies...
Pleurocidin (GWGSFFKKAAHVGKHVGKAALTHYL-NH 2 ), found in skin mucous secretions of the winter flounder Pleuronectes americanus, is known to possess a high potency and broad-spectrum antimicrobial peptide without cytotoxicity. In this study, to investigate the impact of pleurocidin on apoptotic progress, we observed morphological and physiological changes in Candida albicans. In cells exposed...
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