Detection of four different amino acid neurotransmitters in cultured rat neurons and the culture medium by precolumn derivatization high-performance liquid chromatography.

Abstract:

:We validated and used a high-performance liquid chromatography procedure for the determination of four different amino acid neurotransmitters in cultured rat neurons and used culture medium. Samples were derivatized using 2,4-dinitrofluorobenzene and the amino acids were separated on a C18 column. The method yielded good reproducibility and sensitivity for the quantification of the four free amino acid neurotransmitters, with average recovery factors of 80.25-118.43%, an intraday precision of 0.09-0.17%, and an interday precision of 0.62-0.74%. The assay method can be readily utilized as a precise, sensitive, and highly accurate method for the determination of concentrations of the four amino acid neurotransmitters in cultured rat neurons and used culture medium. Using the described methods, we found that the aspartate, glutamic acid, glycine, and γ-aminobutyric acid concentrations (µmol/g protein) in cultured rat neurons were 25.23±0.81, 35.16±0.32, 77.56±4.51, and 62.87±3.12, respectively, whereas their concentrations (µM) in the used culture medium were 18.18±0.82, 24.27±1.01, 107.18±9.56, and 35.78±2.98, respectively.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Zhang F,Ma XL,Wang YX,Su RR,He C,Tian K,Liu YQ

doi

10.1097/WNR.0000000000000568

subject

Has Abstract

pub_date

2016-05-04 00:00:00

pages

495-500

issue

7

eissn

0959-4965

issn

1473-558X

journal_volume

27

pub_type

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