Lipid peroxidation inhibitor 1

Cell experiment:

To rat liver microsomes (S-9) (0.3 mg of protein/40 mM Tris-malate buffer (pH 7.4), 2.4 mL) (2.4 mL) is added a mixture (1:1; 0.1 mL) of aqueous FeCl2 solution (0.25 mM) and NADPH (3 mM). After incubation of the homogenate for 1 h at 37 °C, peroxide production is determined by the thiobarbituric acid method. The inhibitory activities on lipid peroxidation are expressed as IC50 values or percent inhibition as compare with the amount of production in the vehicle (DMSO) group[1].

Animal experiment:

Five-week old male mice (25 to 35 g) are used. Following a 90 min acclimation period, the test compounds (including Lipid peroxidation inhibitor 1) suspended in 5% gum arabic are injected intraperitoneally in a volume of 20 mL/kg. Thirty minutes after treatment with test compounds, methamphetamine dissolved in saline is injected intraperitoneally at a dose of 1 mg/kg in a volume of 20 mL/kg. Immediately after methamphetamine injection, spontaneous motor activity is monitored for 90 min[1].

References:

[1]. Ohkawa S, et al. 5-aminocoumarans: dual inhibitors of lipid peroxidation and dopamine release with protectiveeffects against central nervous system trauma and ischemia. J Med Chem. 1997 Feb 14;40(4):559-73.