J 2012

Redox status expressed as GSH:GSSG ratio as a marker for oxidative stress in paediatric tumour patients

ZÍTKA, Ondřej, Sylvie SKALICKOVA, Jaromír GUMULEC, Michal MASAŘÍK, Vojtěch ADAM et. al.

Basic information

Original name

Redox status expressed as GSH:GSSG ratio as a marker for oxidative stress in paediatric tumour patients

Authors

ZÍTKA, Ondřej (203 Czech Republic, guarantor), Sylvie SKALICKOVA (203 Czech Republic), Jaromír GUMULEC (203 Czech Republic, belonging to the institution), Michal MASAŘÍK (203 Czech Republic, belonging to the institution), Vojtěch ADAM (203 Czech Republic), Jaromír HUBÁLEK (203 Czech Republic), Libuše TRNKOVÁ (203 Czech Republic, belonging to the institution), Jarmila KRUSEOVÁ (203 Czech Republic), Tomáš ECKSCHLAGER (203 Czech Republic) and René KIZEK (203 Czech Republic)

Edition

Oncology Letters, 2012, 1792-1074

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30200 3.2 Clinical medicine

Country of publisher

Greece

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.237

RIV identification code

RIV/00216224:14110/12:00061981

Organization unit

Faculty of Medicine

UT WoS

000311021500020

Keywords in English

glutathione; paediatric tumour patients; oxidative stress; high performance liquid chromatography with electrochemical detection

Tags

International impact
Změněno: 21/11/2012 10:45, Mgr. Michal Petr

Abstract

V originále

Oxidative stress causes profound alterations of various biological structures, including cellular membranes, lipids, proteins and nucleic acids, and it is involved in numerous malignancies. Reduced glutathione (GSH) is considered to be one of the most important scavengers of reactive oxygen species (ROS), and its ratio with oxidised glutathione (GSSG) may be used as a marker of oxidative stress. The main aim of this study was to determine GSH:GSSG ratio in the blood serum of paediatric cancer patients to use this ratio as a potential marker of oxidative stress. The whole procedure was optimised and the recoveries for both substances were greater than 80% under the optimised conditions. We analysed a group of paediatric patients (n=116) with various types of cancer, including neuroblastoma, anaplastic ependymoma, germ cell tumour, genital tract tumour, lymphadenopathy, rhabdomyosarcoma, nephroblastoma, Ewing's sarcoma, osteosarcoma, Hodgkin's lymphoma, medulloblastoma and retinoblastoma. We simultaneously determined the levels of reduced and oxidised glutathione, and thus, its ratio in the blood serum of the patients. The highest ratio was observed in retinoblastoma patients and the lowest in anaplastic ependymoma. We were able to distinguish between the diagnoses based on the results of the obtained GSH:GSSG ratio.