Superoxide anion production and superoxide dismutase and catalase activities in Coxiella burnetii

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Superoxide anion production and superoxide dismutase and catalase activities in Coxiella burnetii.

Coxiella burnetii was examined for superoxide anion (O2-) production and superoxide dismutase and catalase activities. The organism generated O2- at pH 4.5 but not at pH 7.4. The rickettsia displayed superoxide dismutase activity distinguishable from that of the host cell (L-929 mouse fibroblast). Catalase activity was maximal at pH 7.0 and diminished at pH 4.5. These enzymes may account, in pa...

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Abstract Background and Objective: One of the diabetes complications is the tissue damage caused by the imbalance of oxidants and antioxidants (oxidative stress). The aim of the present study was to evaluate the activity of two antioxidant enzymes -superoxide dismutase and catalase- in the serum of streptozotocin-induced diabetic rats. Material and Methods: This investigation was conduct...

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Lens superoxide dismutase and catalase activities in diabetic cataract.

OBJECTIVE Biochemical evidence suggests that the oxidative damage of the lens proteins is involved in the genesis of senile cataract and the development of diabetes-related pathologic changes such as the formation of cataracts. In particular, lens proteins are subject to extensive oxidative modification. Oxidative damage either decreases the antioxidant capacity or decreased antioxidant capacit...

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Superoxide dismutase and catalase activities in Photobacterium damselae ssp. piscicida.

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blood superoxide dismutase and catalase activities in women affected with breast cancer

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ژورنال

عنوان ژورنال: Journal of Bacteriology

سال: 1983

ISSN: 0021-9193,1098-5530

DOI: 10.1128/jb.154.1.520-523.1983