Da-yong Dong

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The emerging human enterovirus 71 (EV71) represents a growing threat to public health, and no vaccine or specific antiviral is currently available. Human intravenous immunoglobulin (IVIG) is clinical used in treating severe EV71 infections. However, the discovery of antibody dependent enhancement (ADE) of EV71 infection illustrates the complex roles of(More)
An expression plasmid carrying anthrax protective antigen (PA) gene was constructed, which has an OmpA signal sequence attached to the 5' end of PA gene. The plasmid was transformed into E. coli and induced to express recombinant PA (rPA) . The recombinant protein, about 10% of the total bacterial protein in volume, was secreted to the periplasmic space of(More)
Purpose In this paper, the planes were taken as reference, simulating series of flexible instruments, including artificial horizon, altimeter, steering meter, air speed indicator and so on. After connecting with flight emluator, simulation flight can be processed with keyboard and mouse. Emulational instruments will display real-time data of flight state.(More)
The gene encoding anthrax lehtal factor (LF) was cloned into a secretory expression plasmid and then expressed in periplasmic space of E. coli. The recombinant LF (rLF) expressed was about 4% of the total proteins in E. coli. About 3 mg electrophoresis purity rLF could be obtained after the purification of 1 liter culure using ion exchange chromatography(More)
Vitiligo is mostly regarded as a consequence of autoimmune response, while the triggering factors remain to be determined. We checked the presence of HSV specific DNA, and IgG and IgM antibodies against HSV, in serum of 90 vitiligo patients by PCR and chemiluminescence methods, respectively. No HSV specific DNA was detected in vitiligo of any types or(More)
Anthrax toxin consists of three separate proteins, protective antigen (PA), lethal factor (LF) and edema factor (EF). EF is bacterial adenylate cyclase which, upon activation by its eukaryotic cofactor, calmodulin, causes a rapid increase in the intracellular cAMP level of host cells. EF can reduce the protective ability of host animal. In order to further(More)
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