Figure 5.

Monoamine oxidase (MAO) activity was increased in the striatum of individuals with human immunodeficiency virus infection encephalitis (HIVE), compared with uninfected controls. MAO activity was measured in human caudate nucleus or putamen homogenates by a luminescent method. MAO activity was higher in individuals with HIVE, compared with seronegative controls (P = .009). Bars represent medians. Statistical comparisons were made using the Mann–Whitney test. Abbreviation: RLU, relative light unit.