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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: J Neuroimmune Pharmacol. 2016 Apr 8;11(2):332–347. doi: 10.1007/s11481-016-9666-9

Fig. 4. CSF YKL40 concentrations increase concomitantly with CSF viral load in macaques that developed SIV encephalitis.

Fig. 4

CSF SIV RNA concentrations (blue, left axis) are graphed separately for each macaque to show the relationship with CSF YKL40 concentrations (purple, right axis) over the course of infection. 10 macaques that developed encephalitis (a) showed YKL40 increases concomitant with elevated CSF viral load while SIV-infected terminally ill non-encephalitic macaques (b) generally maintain similar CSF YKL40 levels throughout infection.