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Gender-related reference intervals of urinary 8-oxo-7,8-dihydro-2 '-deoxyguanosine determined by liquid chromatography-tandem mass spectrometry in Serbian population

Authorized Users Only
2013
Authors
Topić, Aleksandra
Francuski, Đorđe
Marković, Bojan
Stanković, Marija
Dobrivojević, Snežana
Drca, Sanja
Radojković, Dragica
Article (Published version)
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Abstract
Objectives: Although there are many nucleobase modifications, 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) is one of the dominant form of oxidative modifications of DNA. Urinary 8-oxodG is potentially the best non-invasive biomarker of oxidative stress. Defining reference interval for urinary 8-oxodG is a prerequisite for its clinical use as biomarker. Design and methods: Reference population included 229 healthy Serbian adults (130 males and 99 females). The spot urinary 8-oxodG was determined using high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS). Urinary creatinine was measured by the kinetic Jaffe method. Results: Analytical performances of the HPLC-MS/MS: CVs within and between-run variations were 5.6% and 2.6%; LOD and LOQ were 1.65 nmol/L and 330 nmol/L; mean recovery and relative accuracy were 96% and 97%. Creatinine level was higher in males than in females, but no gender difference in 8-oxodG level was observed. Upon the adjustment of 8-oxodG ...to creatinine (8-oxodG/creatinine), higher values were obtained in females (1.38 +/- 0.65 nmol/mmol) than in males (1.05 +/- 0.48 nmol/mmol). Distribution of 8-oxodG/creatinine in spot urine sample was log-normal and gender-related reference intervals (estimated as the 2.5th-97.5th percentiles) were 0.45-2.22 nmol/mmol for males, and 0.54-3.11 nmol/mmol for females. Body mass index (BMI) affects excretion of the 8-oxodG in males, independently of urinary creatinine, while in females it does not. Therefore, BMI might contribute to the gender-related differences of 8-oxodG/creatinine in spot urine samples. Conclusions: This is the first established gender-related reference intervals of spot urinary 8-oxodG/creatinine. Our results contribute to the full validation of 8-oxodG as biomarker of oxidative stress.

Keywords:
8-oxo-7,8-dihydro-2 '-deoxyguanosine / Oxidative stress / Reference interval / Spot urine / HPLC/MS/MS
Source:
Clinical Biochemistry, 2013, 46, 4-5, 321-326
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
  • Complex diseases as a model system for phenotype modulation- structural and functional analysis of molecular biomarkers (RS-173008)

DOI: 10.1016/j.clinbiochem.2012.12.008

ISSN: 0009-9120

PubMed: 23261837

WoS: 000315661700009

Scopus: 2-s2.0-84873731090
[ Google Scholar ]
18
18
URI
https://farfar.pharmacy.bg.ac.rs/handle/123456789/1917
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Pharmacy
TY  - JOUR
AU  - Topić, Aleksandra
AU  - Francuski, Đorđe
AU  - Marković, Bojan
AU  - Stanković, Marija
AU  - Dobrivojević, Snežana
AU  - Drca, Sanja
AU  - Radojković, Dragica
PY  - 2013
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1917
AB  - Objectives: Although there are many nucleobase modifications, 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) is one of the dominant form of oxidative modifications of DNA. Urinary 8-oxodG is potentially the best non-invasive biomarker of oxidative stress. Defining reference interval for urinary 8-oxodG is a prerequisite for its clinical use as biomarker. Design and methods: Reference population included 229 healthy Serbian adults (130 males and 99 females). The spot urinary 8-oxodG was determined using high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS). Urinary creatinine was measured by the kinetic Jaffe method. Results: Analytical performances of the HPLC-MS/MS: CVs within and between-run variations were 5.6% and 2.6%; LOD and LOQ were 1.65 nmol/L and 330 nmol/L; mean recovery and relative accuracy were 96% and 97%. Creatinine level was higher in males than in females, but no gender difference in 8-oxodG level was observed. Upon the adjustment of 8-oxodG to creatinine (8-oxodG/creatinine), higher values were obtained in females (1.38 +/- 0.65 nmol/mmol) than in males (1.05 +/- 0.48 nmol/mmol). Distribution of 8-oxodG/creatinine in spot urine sample was log-normal and gender-related reference intervals (estimated as the 2.5th-97.5th percentiles) were 0.45-2.22 nmol/mmol for males, and 0.54-3.11 nmol/mmol for females. Body mass index (BMI) affects excretion of the 8-oxodG in males, independently of urinary creatinine, while in females it does not. Therefore, BMI might contribute to the gender-related differences of 8-oxodG/creatinine in spot urine samples. Conclusions: This is the first established gender-related reference intervals of spot urinary 8-oxodG/creatinine. Our results contribute to the full validation of 8-oxodG as biomarker of oxidative stress.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Clinical Biochemistry
T1  - Gender-related reference intervals of urinary 8-oxo-7,8-dihydro-2 '-deoxyguanosine determined by liquid chromatography-tandem mass spectrometry in Serbian population
VL  - 46
IS  - 4-5
SP  - 321
EP  - 326
DO  - 10.1016/j.clinbiochem.2012.12.008
UR  - conv_2788
ER  - 
@article{
author = "Topić, Aleksandra and Francuski, Đorđe and Marković, Bojan and Stanković, Marija and Dobrivojević, Snežana and Drca, Sanja and Radojković, Dragica",
year = "2013",
abstract = "Objectives: Although there are many nucleobase modifications, 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) is one of the dominant form of oxidative modifications of DNA. Urinary 8-oxodG is potentially the best non-invasive biomarker of oxidative stress. Defining reference interval for urinary 8-oxodG is a prerequisite for its clinical use as biomarker. Design and methods: Reference population included 229 healthy Serbian adults (130 males and 99 females). The spot urinary 8-oxodG was determined using high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS). Urinary creatinine was measured by the kinetic Jaffe method. Results: Analytical performances of the HPLC-MS/MS: CVs within and between-run variations were 5.6% and 2.6%; LOD and LOQ were 1.65 nmol/L and 330 nmol/L; mean recovery and relative accuracy were 96% and 97%. Creatinine level was higher in males than in females, but no gender difference in 8-oxodG level was observed. Upon the adjustment of 8-oxodG to creatinine (8-oxodG/creatinine), higher values were obtained in females (1.38 +/- 0.65 nmol/mmol) than in males (1.05 +/- 0.48 nmol/mmol). Distribution of 8-oxodG/creatinine in spot urine sample was log-normal and gender-related reference intervals (estimated as the 2.5th-97.5th percentiles) were 0.45-2.22 nmol/mmol for males, and 0.54-3.11 nmol/mmol for females. Body mass index (BMI) affects excretion of the 8-oxodG in males, independently of urinary creatinine, while in females it does not. Therefore, BMI might contribute to the gender-related differences of 8-oxodG/creatinine in spot urine samples. Conclusions: This is the first established gender-related reference intervals of spot urinary 8-oxodG/creatinine. Our results contribute to the full validation of 8-oxodG as biomarker of oxidative stress.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Clinical Biochemistry",
title = "Gender-related reference intervals of urinary 8-oxo-7,8-dihydro-2 '-deoxyguanosine determined by liquid chromatography-tandem mass spectrometry in Serbian population",
volume = "46",
number = "4-5",
pages = "321-326",
doi = "10.1016/j.clinbiochem.2012.12.008",
url = "conv_2788"
}
Topić, A., Francuski, Đ., Marković, B., Stanković, M., Dobrivojević, S., Drca, S.,& Radojković, D.. (2013). Gender-related reference intervals of urinary 8-oxo-7,8-dihydro-2 '-deoxyguanosine determined by liquid chromatography-tandem mass spectrometry in Serbian population. in Clinical Biochemistry
Pergamon-Elsevier Science Ltd, Oxford., 46(4-5), 321-326.
https://doi.org/10.1016/j.clinbiochem.2012.12.008
conv_2788
Topić A, Francuski Đ, Marković B, Stanković M, Dobrivojević S, Drca S, Radojković D. Gender-related reference intervals of urinary 8-oxo-7,8-dihydro-2 '-deoxyguanosine determined by liquid chromatography-tandem mass spectrometry in Serbian population. in Clinical Biochemistry. 2013;46(4-5):321-326.
doi:10.1016/j.clinbiochem.2012.12.008
conv_2788 .
Topić, Aleksandra, Francuski, Đorđe, Marković, Bojan, Stanković, Marija, Dobrivojević, Snežana, Drca, Sanja, Radojković, Dragica, "Gender-related reference intervals of urinary 8-oxo-7,8-dihydro-2 '-deoxyguanosine determined by liquid chromatography-tandem mass spectrometry in Serbian population" in Clinical Biochemistry, 46, no. 4-5 (2013):321-326,
https://doi.org/10.1016/j.clinbiochem.2012.12.008 .,
conv_2788 .

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