Identification and quantification of kynurenic acid in human brain tissue.

Abstract:

:Serial ion-exchange and high-performance liquid chromatography separations were employed for the tissue extraction and purification of kynurenic acid (KYNA). Subsequently, the compound isolated from postmortem human brain tissue was unequivocally identified as KYNA by nuclear magnetic resonance and mass spectrometric analyses. Regional distribution analyses revealed the highest concentration of KYNA (1.58 +/- 0.43 pmol/mg tissue) in the caudate nucleus with lower levels in the thalamus, globus pallidus, hippocampus, parietal cortex and frontal cortex. Of the brain structures examined, the lowest concentration of KYNA (0.14 +/- 0.02 pmol/mg tissue) was found in the cerebellum.

journal_name

Brain Res

journal_title

Brain research

authors

Turski WA,Nakamura M,Todd WP,Carpenter BK,Whetsell WO Jr,Schwarcz R

doi

10.1016/0006-8993(88)90815-3

subject

Has Abstract

pub_date

1988-06-28 00:00:00

pages

164-9

issue

1-2

eissn

0006-8993

issn

1872-6240

pii

0006-8993(88)90815-3

journal_volume

454

pub_type

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