Abstract
This study aimed to clarify the kinetics of copper-zinc (CuZn) and manganese (Mn) superoxide dismutase (SOD) activity in acute ischemic stroke victims. Using the nitrite method, we investigated sequential changes in CuZn and Mn SOD activity in the cerebrospinal fluid (CSF) of 8 patients with acute ischemic stroke. SOD activity in each patient was measured at 36 hours and 3, 7, 14, and 28 days after stroke. CuZn SOD activity in CSF peaked 3 days after stroke, with values gradually decreasing after 7 days. In contrast, Mn SOD activity remained significantly lower in the stroke group than in controls throughout the study. These findings may reflect differences between the 2 isoenzymes in terms of the distribution, role, and method of synthesis in brain tissue.
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