DNA glycosylase activity during HAART. faPy DNA glycosylase activity in CD4⁺ (A) and CD8⁺ (B) T cells from HIV-infected patients during HAART. Extracts isolated from 7 HIV-infected patients before and after 6 months of HAART were incubated with 0.4 μg 3H-labeled faPy-poly(dG-dC) DNA. The shaded area indicates ranges in 13 healthy controls.