Figure 4From: Alterations of matrix metalloproteinases in the healthy elderly with increased risk of prodromal Alzheimer's diseaseScatter plot of CSF MMP-9 levels and CSF P-tau levels in the cognitively healthy elderly individuals. CSF MMP-9 levels are presented in ng/ml and CSF P-tau levels are presented in ng/l. CSF, cerebrospinal fluid; MMP, matrix metalloproteinase.Back to article page