کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1217123 967068 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Capillary electrophoretic determination of DNA damage markers: Content of 8-hydroxy-2′-deoxyguanosine and 8-nitroguanine in urine
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Capillary electrophoretic determination of DNA damage markers: Content of 8-hydroxy-2′-deoxyguanosine and 8-nitroguanine in urine
چکیده انگلیسی

A sensitive and low-cost analytical method has been developed to determine 8-hydroxy-2′-deoxyguanosine (8-OHdG) and 8-nitroguanine (8-NO2Gua) 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 μg/mL with the detection limits ranging from 0.02 to 0.06 μg/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-NO2Gua in cancer patients were significantly higher than those in healthy ones.


► 8-OHdG and 8-NO2Gua were simultaneously determined by capillary electrophoresis with amperometric detection (CE–AD).
► CE–AD apparatus employed is inexpensive and easy to operate.
► The proposed method was rather simple and has been applied to analyze clinical samples.
► The excretion levels of urinary 8-OHdG and 8-NO2Gua of cancer patients were significantly higher than those of healthy persons. With the growth of age, 8-OHdG urinary levels also increase slightly.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volume 879, Issue 32, 15 December 2011, Pages 3818–3822
نویسندگان
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