Fig. 1From: Neurovirulent Simian Immunodeficiency Virus Infection Induces Neuronal, Endothelial, and Glial Apoptosis Neurovirulent SIV produces a marked increase in the number of TUNEL positive cells in the macaque CNS Low-power view of sagittal brain sections show rare TUNEL-positive cells in the healthy macaque CNS (A), a moderate increase in the number of TUNEL-positive cells in the non-neurovirulent SIV-infected macaque CNS (B), and a marked increase in the number of TUNEL-positive cells in the neurovirulent SIV-infected macaque CNS (C). TUNEL label appears scattered throughout cortical and subcortical areas in a random fashion. Scale bars =100 µm.Back to article page