期刊
FREE RADICAL RESEARCH
卷 41, 期 5, 页码 546-554出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10715760601164050
关键词
oxidative stress marker; hypertension; DNA damage; 8-oxo-7; 8-dihydro-2 '-deoxyguanosine (8-oxo-dG); urine
The potential use of oxidative stress products as disease markers and progression is an important aspect of biomedical research. In the present study, the quantification of urine 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dG) concentration has been used to express the oxidation status of hypertensive subjects. 8-oxo-dG has been simultaneously isolated and assayed in nuclear (nDNA) and mitochondrial DNA (mtDNA). In addition, oxidative stress of mononuclear cells has been estimated by means of GSH and GSSG levels and GSSG/GSH ratio in hypertensive subjects before and after antihypertensive treatment. It is shown that oxidative stress decreases significantly in hypertensive patients after treatment the effect being accompanied by reduction of their blood pressure. A significant correlation is observed comparing the yield of urine 8-oxo-dG and that isolated from mitochondria DNA. Moreover, urinary excretion of 8-oxo-dG also correlates with the GSSG/GSH ratio of cells. Conclusion: urine 8-oxo-dG assay is a good marker for monitoring oxidative stress changes in hypertensives.
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