PMID- 22098717 OWN - NLM STAT- MEDLINE DCOM- 20120308 LR - 20191210 IS - 1873-376X (Electronic) IS - 1570-0232 (Linking) VI - 879 IP - 32 DP - 2011 Dec 15 TI - Capillary electrophoretic determination of DNA damage markers: content of 8-hydroxy-2'-deoxyguanosine and 8-nitroguanine in urine. PG - 3818-22 LID - 10.1016/j.jchromb.2011.10.026 [doi] AB - A sensitive and low-cost analytical method has been developed to determine 8-hydroxy-2'-deoxyguanosine (8-OHdG) and 8-nitroguanine (8-NO(2)Gua) based on capillary electrophoresis with amperometric detection (CE-AD) after solid phase extraction (SPE). Under optimized condition, these two markers were well separated from other components coexisting in urine, exhibiting a linear calibration over the concentration range of 0.1-50.0 mug/mL with the detection limits ranging from 0.02 to 0.06 mug/mL. The relative standard deviations (RSDs) were in the range of 0.1-2.1% for peak area, 0.1-1.5% for migration time, respectively. The average recovery and RSD were within the range of 100.0-108.0% and 0.1-1.7%, respectively. It was found that the urinary contents of 8-OHdG and 8-NO(2)Gua in cancer patients were significantly higher than those in healthy ones. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Li, Meng-Jie AU - Li MJ AD - Department of Chemistry, East China Normal University, Shanghai, China. FAU - Zhang, Jun-Bo AU - Zhang JB FAU - Li, Wen-Li AU - Li WL FAU - Chu, Qing-Cui AU - Chu QC FAU - Ye, Jian-Nong AU - Ye JN LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111029 PL - Netherlands TA - J Chromatogr B Analyt Technol Biomed Life Sci JT - Journal of chromatography. B, Analytical technologies in the biomedical and life sciences JID - 101139554 RN - 0 (8-nitroguanine) RN - 0 (Biomarkers) RN - 5Z93L87A1R (Guanine) RN - 88847-89-6 (8-Hydroxy-2'-Deoxyguanosine) RN - G9481N71RO (Deoxyguanosine) SB - IM MH - 8-Hydroxy-2'-Deoxyguanosine MH - Adult MH - Aged MH - Biomarkers/*urine MH - *DNA Damage MH - Deoxyguanosine/*analogs & derivatives/urine MH - Electrophoresis, Capillary/*methods MH - Female MH - Guanine/*analogs & derivatives/urine MH - Humans MH - Hydrogen-Ion Concentration MH - Limit of Detection MH - Male MH - Middle Aged MH - Neoplasms/urine MH - Reproducibility of Results MH - Solid Phase Extraction EDAT- 2011/11/22 06:00 MHDA- 2012/03/09 06:00 CRDT- 2011/11/22 06:00 PHST- 2011/07/04 00:00 [received] PHST- 2011/10/19 00:00 [revised] PHST- 2011/10/23 00:00 [accepted] PHST- 2011/11/22 06:00 [entrez] PHST- 2011/11/22 06:00 [pubmed] PHST- 2012/03/09 06:00 [medline] AID - S1570-0232(11)00693-3 [pii] AID - 10.1016/j.jchromb.2011.10.026 [doi] PST - ppublish SO - J Chromatogr B Analyt Technol Biomed Life Sci. 2011 Dec 15;879(32):3818-22. doi: 10.1016/j.jchromb.2011.10.026. Epub 2011 Oct 29.