2014
Simultaneous determination of reduced and oxidized glutathione in tissues by a novel liquid chromatography-mass spectrometry method: application in an inhalation study of Cd nanoparticles
BLÁHOVÁ, Lucie, Jiří KOHOUTEK, Jana LEBEDOVÁ, Luděk BLÁHA, Z. VECERA et. al.Základní údaje
Originální název
Simultaneous determination of reduced and oxidized glutathione in tissues by a novel liquid chromatography-mass spectrometry method: application in an inhalation study of Cd nanoparticles
Autoři
BLÁHOVÁ, Lucie (203 Česká republika, garant, domácí), Jiří KOHOUTEK (203 Česká republika, domácí), Jana LEBEDOVÁ (203 Česká republika, domácí), Luděk BLÁHA (203 Česká republika, domácí), Z. VECERA (203 Česká republika), M. BUCHTOVA (203 Česká republika), Ivan MÍŠEK (203 Česká republika) a Klára HILSCHEROVÁ (203 Česká republika, domácí)
Vydání
Analytical and Bioanalytical chemistry, HEIDELBERG, SPRINGER HEIDELBERG, 2014, 1618-2642
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.436
Kód RIV
RIV/00216224:14310/14:00079120
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000341834500013
Klíčová slova anglicky
Glutathione; LC MS/MS; Tissues; Oxidative stress; Nanoparticle; Cadmium oxide
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 4. 2015 08:19, Mgr. Lucie Bláhová, Ph.D.
Anotace
V originále
The paper presents the development of an advanced extraction and fast analytical LC MS/MS method for simultaneous analyses of reduced and oxidized glutathione (GSH and GSSG, respectively) in different animal tissues. The simultaneous determination of GSH and GSSG is crucial because the amount and ratio of both GSH and GSSG may be altered in response to oxidative stress, an important mechanism of toxicity. The method uses the derivatization of free thiol groups in GSH. Its performance was demonstrated for less explored tissues (lung, brain, and liver) in mouse. The combined extraction and analytical method has very low variability and good reproducibility, maximum coefficients of variance for within-run and between-run analyses under 8 %, and low limits of quantification; for GSH and GSSG, these were 0.2 nM (0.06 ng/mL) and 10 nM (6 ng/mL), respectively. The performance of the method was further demonstrated in a model experiment addressing changes in GSH and GSSG concentrations in lung of mice exposed to CdO nanoparticles during acute 72 h and chronic 13-week exposures. Inhalation exposure led to increased GSH concentrations in lung. GSSG levels were in general not affected; nonsignificant suppression occurred only after the longer 13-week period of exposure. The developed method for the sensitive detection of both GSH and GSSG in very low tissue mass enables these parameters to be studied in cases where only a little sample is available, i.e. in small organisms or in small amounts of tissue.
Návaznosti
LO1214, projekt VaV |
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