CRP and Stroke: The spontaneous release of sCD137, a marker of cell activation that correlates with circulating C-reactive protein (CRP) in plasma (66) and is positively associated with both acute coronary syndromes (66) and stroke (67), was significantly higher from the γδ T cells of HIV+ older subjects compared with the other three groups (Figure 4A, results from the other detected analytes are shown in Supplementary Figure 4).