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BACKGROUND To examine the characteristics of oxidative stress in patients with acute kidney injury (AKI) and investigate the association between plasma nitrotyrosine levels and 90-day mortality in patients with AKI. METHODOLOGY/PRINCIPAL FINDINGS 158 patients with hospital-acquired AKI were recruited to this prospective cohort study according to RIFLE(More)
INTRODUCTION Regional citrate anticoagulation (RCA) is gaining popularity in continous renal replacement therapy (CRRT) for critically ill patients. The risk of citrate toxicity is a primary concern during the prolonged process. The aim of this study was to assess the pharmacokinetics of citrate in critically ill patients with AKI, and used the kinetic(More)
Vascular calcification is an actively regulated process similar to bone formation. Advanced oxidation protein products (AOPPs) have been demonstrated to be novel markers of oxidant-mediated protein damage. The present study investigated the role of AOPPs in inducing osteoblastic trans-differentiation and calcification of smooth muscle cells in vitro. We(More)
A fast, sensitive and reproducible method for the determination of iohexol by high performance liquid chromatography with narrow-bore column was developed. The method involved one step deproteinization of plasma by perchloric acid and a simple, isocratic elution system of 7% (v/v) methane solution. The linearity of the method ranged from 0.5 to 500 mg/L of(More)
  • Qiuyu Zhu
  • 2012
The paper presents a novel camera calibration method of intrinsic and extrinsic parameters based on single planar calibration image. A camera model including backward radial nonlinear model and indirect extrinsic parameters model is proposed at first, and then constraint equations are constructed by all distances between control points, followed by a(More)
BACKGROUND/AIMS This study aimed to examine antioxidants in patients with acute kidney injury (AKI) and determine whether serum protein thiol levels are associated with all-cause 90-day mortality in patients with hospital-acquired AKI. METHODS According to the RIFLE criteria, 160 patients with hospital-acquired AKI were enrolled in our prospective cohort(More)
Though the queuing model with impatient customer has been studied in the past decades, little is definitively known about the overtime waiting characteristics. In this paper, we present an overtime-waiting model for Web servers. This model is taken as a special case of the impatient customer, which quit when the waiting time is longer than a tolerable(More)