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Table 3 Correlations between TRP (Tryptophan), KYN (Kynurenine), IDO (indoleamine 2,3 dioxygenase) activity, QUIN (Quinolinic acid), KYNA (Kynurenic acid), QUIN/KYNA serum levels and distance mouse travelled in open field, marble burying test, splash test, retention and reversal phases of the Barnes maze (P < 0.05 in green, P < 0.01 in yellow; not significant uncoloured). BM, Barnes maze

From: Increased serum QUIN/KYNA is a reliable biomarker of post-stroke cognitive decline

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