Simultaneous determination of 8-hydroxy-2'-deoxyguanosine and 5-methyl-2'-deoxycytidine in DNA sample by high performance liquid chromatography/positive electrospray ionization tandem mass spectrometry. 2010

Junjie Hu, and Wenbing Zhang, and Huimin Ma, and Yunmei Cai, and Guoying Sheng, and Jiamo Fu
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; Graduate school of the Chinese Academy of Science, Beijing, China.

8-Hydroxy-2'-deoxyguanosine (8-OHdG) and 5-methyl-2'-deoxycytidine (5-mdC) are utilized as useful biomarkers not only for early diagnosis but also for the detection and assessment of high-risk individuals. In the present study, a sensitive and specific method was developed for simultaneous determination of 8-OHdG and 5-mdC in DNA by high performance liquid chromatography/positive electrospray ionization tandem mass spectrometry. The limits of quantification for 8-OHdG and 5-mdC were 80 and 40pg/ml, respectively. The calibration curves of 8-OHdG and 5-mdC were linear over the concentration range of 0.02-100ng/ml and the correlation coefficients were higher than 0.9990. The intra-day and inter-day relative standard derivative values were in the range of 0.70-7.47% for 8-OHdG and 1.07-7.06% for 5-mdC, respectively. The recoveries were 93.4-108.5% for 8-OHdG and 87.4-104.9% for 5-mdC, respectively. This method was validated by determination of the background levels of 8-OHdG and 5-mdC in calf thymus DNA, and satisfactory results were obtained.

UI MeSH Term Description Entries
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D003841 Deoxycytidine A nucleoside component of DNA composed of CYTOSINE and DEOXYRIBOSE. Cytosine Deoxyribonucleoside,Cytosine Deoxyriboside,Deoxyribonucleoside, Cytosine,Deoxyriboside, Cytosine
D003849 Deoxyguanosine A nucleoside consisting of the base guanine and the sugar deoxyribose.
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D004249 DNA Damage Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS. DNA Injury,DNA Lesion,DNA Lesions,Genotoxic Stress,Stress, Genotoxic,Injury, DNA,DNA Injuries
D000080242 8-Hydroxy-2'-Deoxyguanosine Common oxidized form of deoxyguanosine in which C-8 position of guanine base has a carbonyl group. 2'-Deoxy-7,8-Dihydro-8-Oxoguanosine,2'-Deoxy-8-Hydroxyguanosine,2'-Deoxy-8-Oxo-7,8-Dihydroguanosine,2'-Deoxy-8-Oxoguanosine,7,8-Dihydro-8-Oxo-2'-Deoxyguanosine,7-Hydro-8-Oxodeoxyguanosine,8-Hydroxydeoxyguanosine,8-Oxo-2'-Deoxyguanosine,8-Oxo-7,8-Dihydro-2'-Deoxyguanosine,8-Oxo-7,8-Dihydrodeoxyguanosine,8-Oxo-7-Hydrodeoxyguanosine,8-Oxo-Deoxyguanosine,8OHdG,8-OH-dG,8-oxo-dG,8-oxo-dGuo,8-oxodG,8-oxodGuo,2' Deoxy 7,8 Dihydro 8 Oxoguanosine,2' Deoxy 8 Hydroxyguanosine,2' Deoxy 8 Oxo 7,8 Dihydroguanosine,2' Deoxy 8 Oxoguanosine,7 Hydro 8 Oxodeoxyguanosine,7,8 Dihydro 8 Oxo 2' Deoxyguanosine,8 Hydroxy 2' Deoxyguanosine,8 Hydroxydeoxyguanosine,8 Oxo 2' Deoxyguanosine,8 Oxo 7 Hydrodeoxyguanosine,8 Oxo 7,8 Dihydro 2' Deoxyguanosine,8 Oxo 7,8 Dihydrodeoxyguanosine,8 Oxo Deoxyguanosine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012680 Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) Specificity,Sensitivity,Specificity and Sensitivity
D013950 Thymus Gland A single, unpaired primary lymphoid organ situated in the MEDIASTINUM, extending superiorly into the neck to the lower edge of the THYROID GLAND and inferiorly to the fourth costal cartilage. It is necessary for normal development of immunologic function early in life. By puberty, it begins to involute and much of the tissue is replaced by fat. Thymus,Gland, Thymus,Glands, Thymus,Thymus Glands

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