Research Article

Evidence on the Heroin-Mediated Impairment of the Oxidative Status of Erythrocytes

Figure 2

Comparative analysis of serum (a) glutathione peroxidase-1 (GPX-1) concentration and (b) glutathione peroxidase (GPX) activity between chronic heroin-addicted subjects and control subjects. Results are presented as mean ± SEM in milliunits per milliliter (mU/mL). indicates a significant comparative analysis with .