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Fig. 1 | BMC Neuroscience

Fig. 1

From: The inflammatory profile of cerebrospinal fluid, plasma, and saliva from patients with severe neuropathic pain and healthy controls-a pilot study

Fig. 1

Volcano plot of cytokines/chemokines according to the OPLS-DA model. The x-axis shows p(corr) for each cytokine, where a negative p(corr) indicates higher levels in patients while a positive p(corr) indicates the opposite. The y-axis shows the variable importance of projection (VIP), which signifies the importance of each variable for the model. Cut-offs of p(corr) over 0.5 and under − 0.5, and VIP ≥ 1, were used and are illustrated by dotted lines. The 17 significant inflammatory proteins are highlighted within circles

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