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. 2016 Aug 4;7:246. doi: 10.3389/fimmu.2016.00246

Figure 3.

Figure 3

Passage of activated lymphocytes and monocytes across a compromised blood–brain barrier leads to dysregulation KP metabolism. Neurotoxic metabolites QUIN and 3-hydroxykynurenine are increased, while formation of neuroprotective kynurenic acid (KYNA) is not favored.