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Role of oxygen free radicals in shock
Aims Of The Study:
To study lipid peroxidation, magnesium levels (Mg) in plasma and red cells (RBC), superoxide dismutase (SOD) and catalase (CAT) activities in the plasma and RBC of shock patients.
Methodology:
Twenty five patients with clinically defined septic shock and 30 healthy volunteers were selected for the study to study the parameters of oxidative stress.
Results:
Septic shock patients had higher activities of plasma and RBC SOD and CAT activities as compared to control. Also, plasma Mg and malonaldehyde (MDA) levels were higher in shock patients as compared to controls. While, RBC Mg levels were similar in two groups.
Conclusions:
The finding of increased concentration of MDA, Mg, SOD and CAT in sepsis implicates oxygen free radicals in the pathophysiology and free radical scavengers may have a role in organ preservation.