Effects of Spirulina maxima on kidney oxidative status indicators during lead exposure in rats. The animals were treated with a vehicle or with 75 mg of lead acetate (LA, 25 mg/0.5 ml isotonic saline each, i.p., and three times on days 14, 21 and 28, and sacrificed on day 30). Values are expressed in mean ± SD of n = 6 rats. (A). The total Superoxide Dismutase (SOD) activity. (B). The Catalase (CAT) activity. (C). The Glutathione (GSH) levels. (D). The Thiobarbituric Acid-Reactive Substances (TBARS) levels. Control (no LA and without Spirulina), LAwS (LA without Spirulina), LAS (LA with Spirulina). *p < 0.05, LAwS group compared with the Control group. ANOVA with Bonferroni test. **p < 0.05, LAwS group compared with the LAS group. ANOVA with Bonferroni test.