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Updated: May 28, 2026

A High-performance Liquid Chromatography Measurement of Kynurenine and Kynurenic Acid: Relating Biochemistry to Cognition and Sleep in Rats
Published on: August 19, 2018
Modifications on the carboxylic function of kynurenic acid
Ferenc Fülöp1, István Szatmári, József Toldi
1Institute of Pharmaceutical Chemistry and Research Group for Stereochemistry, Hungarian Academy of Sciences, University of Szeged, Eotvos u. 6, 6720, Szeged, Hungary. fulop@pharm.u-szeged.hu
Abstract:
Pharmacological and histological studies of ten new amides of kynurenic acid revealed that N-(2-N,N-dimethylaminoethyl)-4-oxo-1H-quinoline-2-carboxamide hydrochloride has effective neuroprotective properties. Namely, this molecule is: (1) proved to be an effective inhibitor of excitatory synaptic transmission in the CA1 region of the hippocampus both in in vitro and ex vivo studies, (2) in four vessel occlusion model of transient global forebrain ischaemia, measuring the rate of hippocampal CA1 pyramidal cell loss and preservation of long-term potentiation at Schaffer collateral-CA1 synapses, the neuroprotective potential was represented. N-(2-N,N-dimethylaminoethyl)-4-oxo-1H-quinoline-2-carboxamide hydrochloride administration significantly diminished hippocampal CA1 cell loss and preserved LTP expression.
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