Zhang Weidong

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The purpose of this study was to investigate the distribution of CD34-positive fibroblasts and alpha-smooth muscle actin (alpha-SMA)-reactive myofibroblasts in the stroma of benign and malignant breast lesions and, secondly, to determine whether the presence of stromal myofibroblasts is associated with some of the clinicopathological characteristics of(More)
In order to explore the feasibility and protective efficiency of influenza DNA vaccine, we constructed eukaryotic expressing plasmids encodingHA andHA 1 of influenza A virus (A/PR/8/34) and studied their expression in HEK293 cells.HA andHA 1 genes were amplified by RT-PCR and cloned into pcDNA3. 1(+) to generate pcDNA3. 1(+)/HA and pcDNA3.1(+)/HA1,(More)
In WSNs, energy efficiency and low latency are considered as two key issues in designing routing protocol. This paper proposes two schemes to combine clustering strategy with chain routing algorithm in order to satisfy both energy and delay constraints in WSNs. The first scheme makes use of clustering strategy, direct transmission inside cluster, and chain(More)
A novel approach for a dentritic cells (DCs)-based tumor vaccine was developed for the formation of hybrid-engineered J558 after fusion with DCs. To make the hybrid-tumor vaccine generate more efficient specific CTL cytotoxicity against wild-type tumor cells, we genetically engineered tumor cells with mIL-12 gene prior to the cell fusion. mIL-12 was(More)
The traditional Chinese medicine ChanSu, also called toad venom or toad poison, is a product of the skin secretions of local giant toads, including Bufo bufo gargarizans Cantor and B. melanostictus Schneider., which has been used traditionally as a cardiotonic, diuretic, anodyne, and hemostatic agent [1, 2]. Thin-plate ChanSu was purchased from Nantong(More)
Fertility and early embryonic developmental toxicity in rats were evaluated by intravenously administering astragaloside IV (AS-IV) daily at 0.25, 0.5, and 1.0 mg/kg for 4 weeks before mating, throughout the mating period, and continuing to day 6 of gestation period in females. Perinatal toxicity in rats was evaluated on gestational days (GD) 15 to 21 and(More)
The mechanism of vascular endothelial growth factor (VEGF) on the prevention of restenosis after angioplasty was investigated. The cultured vascular endothelial cells (VEC) were incubated with the conditioned medium (CM) from vascular smooth muscle cells (VSMC) infected with recombinant adenoviruses containing the hVEGF165 gene. To observe the effects of(More)
In this paper, a robust PID controller tuning method based on process model for unstable first order plus time delay (FOPTD) system is proposed. The proposed method is derived under H∞ performance index. The unified PID controller parameters are induced through McLaughlin series expansion and the Pade approximation. The closed-loop transfer function(More)
To construct the recombinant adenovirus vector containing the cDNA for human vascular endothelial growth factor (hVEGF165), the cDNA for hVEGF165 was subcloned into pACCMV · pLpA. Subsequently, this recombinant pACCMV · hVEGF was co-transfected into 293 cells together with pJM17 to obtain the replication-deficient recombinant adenovirus containing hVEGF(More)
On the basis of the investigation and analysis on aim, design content, methods, techniques and reform of textbook in general course in P.E profession as well as assessment and teaching staff. The results showed the advantages and disadvantage of basketball general course in P.E majors, and still explored some measures to improve the teaching qualities.