Fig. 4From: Systemic and central nervous system metabolic alterations in Alzheimer’s diseaseCorrelations of metabolite concentrations in CSF with Qalb in control (a) and AD patients (b) and boxplots of metabolites with significantly different CSF/plasma ratios between control and AD patients (c). For a and b, significantly different metabolites in dark blue with –logP value > 3 (represents P value < 0.05). For c, *P < 0.05 and **P < 0.001Back to article page