A Determination of Submicromolar Concentrations of Glycine in Periaqueductal Gray Matter Microdialyzates Using Capillary Zone Electrophoresis with Contactless Conductivity Detection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11120%2F09%3A00001676" target="_blank" >RIV/00216208:11120/09:00001676 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A Determination of Submicromolar Concentrations of Glycine in Periaqueductal Gray Matter Microdialyzates Using Capillary Zone Electrophoresis with Contactless Conductivity Detection

Popis výsledku v původním jazyce

Capillary electrophoresis (CE) with contactless conductivity detection (C4D) has been used to determine the glycine neurotransmitter in periaqueductal gray matter (PAG) of rats. The limit of detection for glycine has been decreased to a value of 0.2 ?M by adding 75% v/v of acetonitrile to the samples and increasing the sample zone introduced to a value of 20% of the overall capillary length. The repeatabilities of the analyte migration times and the zone areas amount to 2.1 and 2.7%, respectively. The optimized CE/C4D method makes it possible to determine micromolar concentrations of glycine in PAG microdialyzates without the necessity of sample derivatization. It follows from a pharmacological study that a local inflammation initiated by an application of carrageenan increased the glycine concentration in the rat PAG seven times, compared to a control. The glycine level in PAG can be decreased and the pain suppressed by administering paracetamol.

Název v anglickém jazyce

A Determination of Submicromolar Concentrations of Glycine in Periaqueductal Gray Matter Microdialyzates Using Capillary Zone Electrophoresis with Contactless Conductivity Detection

Popis výsledku anglicky

Capillary electrophoresis (CE) with contactless conductivity detection (C4D) has been used to determine the glycine neurotransmitter in periaqueductal gray matter (PAG) of rats. The limit of detection for glycine has been decreased to a value of 0.2 ?M by adding 75% v/v of acetonitrile to the samples and increasing the sample zone introduced to a value of 20% of the overall capillary length. The repeatabilities of the analyte migration times and the zone areas amount to 2.1 and 2.7%, respectively. The optimized CE/C4D method makes it possible to determine micromolar concentrations of glycine in PAG microdialyzates without the necessity of sample derivatization. It follows from a pharmacological study that a local inflammation initiated by an application of carrageenan increased the glycine concentration in the rat PAG seven times, compared to a control. The glycine level in PAG can be decreased and the pain suppressed by administering paracetamol.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F07%2F0896" target="_blank" >GA203/07/0896: Rychlé stanovení biologicky aktivních nízkomolekulárních látek v biologickém materiálu pomocí mikrofluidních technik</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrophoresis

ISSN

0173-0835

e-ISSN

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Svazek periodika

30

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000271154100019

EID výsledku v databázi Scopus

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