L-Kynurenine-<wbr/>d<sub>4</sub>

L-Kynurenine-d4

CAT N°: 36307
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From 117.00 99.45

L-Kynurenine-d4 is intended for use as an internal standard for the quantification of kynurenine by GC- or LC-MS. L-Kynurenine is an active metabolite of tryptophan (Item Nos. 29600 | 31210).{20572} It is formed from tryptophan via tryptophan 2,3-dioxygenase (TDO) or indoleamine 2,3-dioxygenase (IDO). L-Kynurenine binds to the aryl hydrocarbon receptor (AhR; Kd = ~4 µM) and increases the activity of ethoxyresorufin-O-deethylase (EROD) in H-4-II-E rat hepatoma cells (EC50 = 12.3 µM).{20319} It decreases intracellular concentrations of NAD+ (Item No. 16077) in, and increases lactate dehydrogenase (LDH) activity in the supernatant of, primary human astrocytes and neurons in a concentration-dependent manner.{42854} L-Kynurenine in combination with IFN-? reduces lung injury induced by A. fumigatus infection in the p47phox-/- mouse model of chronic granulomatous disease.{15340}

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