Figure 6. Higher doses of CQ attenuated proteasome activity in the liver and heart. Treatment with increasing doses of chloroquine significantly reduced proteasome activity in the liver at a dose of 100 mg/kg (A), whereas proteasomal activity in the heart was reduced only at 200 mg/kg (B). Data are given as arbitrary fluorescence units per mg protein as indicated in the materials and method section of the manuscript. N = 5 for each group.