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The plaque reduction neutralization test (PRNT) is used widely to measure the neutralization activity of anti-dengue virus (DENV) antibodies, but it is time-consuming and labor-intensive and has low sample throughput. For fast and convenient measurement of neutralizing antibodies, especially in evaluating the efficiency of the DENV vaccines on a large(More)
Human leukocyte antigen (HLA)-B27 is strongly associated with the autoimmune disease ankylosing spondylitis (AS). Other autoimmune disease-associated genes, such as transporter associated with antigen processing (TAP) genes, could also influence AS susceptibility. In this study, we investigated the association of TAP1 and TAP2 polymorphisms in genetically(More)
OBJECTIVES To assess the diagnostic accuracy of computed tomographic (CT) perfusion technique in discriminating recurrent nasopharyngeal carcinoma (NPC) after radiation therapy. METHODS Forty-eight patients with a pathologic finding as reference standards were divided into 2 groups, recurrent and nonrecurrent NPCs. Perfusion parameters blood flow (BF),(More)
PURPOSE To evaluate the ratios of apparent diffusion coefficient (ADC) calculated from diffusion weighted imaging (DWI) between axillary lymph nodes with primary breast tumor lesions in the detection of axillary lymph nodes metastasis in breast cancer patients. MATERIALS AND METHODS A total of 36 patients with breast tumors and their axillary lymph nodes(More)
A rapid and sensitive bioassay based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the simultaneous determination of four isomeric escin saponins (escin Ia, escin Ib, isoescin Ia and isoescin Ib) in human plasma has been developed and validated. Sample preparation of plasma after addition of telmisartan as internal standard (I.S.)(More)
A rapid and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for simultaneous quantification of escin Ia and escin Ib in human plasma. After a solid-phase extraction (SPE), the analytes were separated on a Zorbax Extend C(18) column by isocratic elution with a mobile phase of methanol-acetonitrile-10 mm(More)
In this paper, we present a new method that is accurate and has low computational complexity to estimate the initial condition of chaotic signal. Then the estimation method is applied to a noise radar system using noncoherent reception scheme. In the new scheme, the received signal correlates with the estimated transmitted signal by the estimation method(More)
This paper presents an investigation of the carbonyl emissions from a direct injection heavy-duty diesel engine fueled with pure diesel fuel (DF) and blended fuel containing 15% by volume of ethanol (E/DF). The tests have been conducted under steady-state operating conditions at 1200, 1800, 2600 rpm and idle speed. The experimental results show that(More)
Hydroxyl radical (•OH) is an important marker of the progress of heavy metal induced oxidative stress. However, most reported probes and detection methods cannot meet the need of monitoring the •OH concentration within the whole progress because of the limited linear range. Besides, a low detection limit, high sensitivity, and good selectivity were also(More)
Multifunctional nanomaterials for cancer diagnosis and therapy have recently prompted widespread concern. To avoid nanotoxicity, the development of novel degradable functional materials must be our main focus. In this study, we firstly developed ethylenediaminetetraacetic acid calcium disodium salt (EDTA)- and bovine serum albumin (BSA)-capped Mn3O4(More)