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8-Oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodGuo) is the most frequently measured biomarker of oxidative stress. Chromatographic-based methods for 8-oxodGuo in urine are well established; however, the 8-oxodGuo measurement in plasma and saliva has been problematic.We firstly and successfully applied an on-line solid-phase extraction (SPE) LC-MS/MS following manual SPE pretreatment to quantify the 8-oxodGuo...
Tumstatin, an angiogenesis inhibitor with anti-tumor activity in mice, is the bioactive NC1 domain of Col IVa3, the potential significance of tumstatin as an endogenous angiogenesis inhibitor in human is not yet completely understood. This study aimed to develop an enzyme-linked immunoassay (ELISA) for tumstatin to accurately measure its concentrations in biological samples.Recombinant tumstatin as...
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