The Her-2 proto-oncogene encodes a 185kDa transmenbrane glycoprotein p185 which has intrinsic tyrosine kinase activity. It is overexpressed in several malignant human tumors like breast cancer. A chimeric antibody by assembling a single-chain Fv antibody and a human IgG1 Fc fragment was constructed. This chimeric antibody reacts with tumor surface antigen p185c-erbB-2 specifically. In order to put the antibody into clinical application, two steps purification method was used to attain the antibody’s purity more than 95%. Both the lyophilized pharmaceutical formulations of the antibody were found. The formulations can keep the stability and activity of the antibody for at least one year. These results were the foundation of the chimeric antibody for cancer therapy.

【Objective】To observe the dynamic interference of cellular endotoxin specific receptors of Toll-like receptor 4(TLR4) mRNA and nuclear factor ?B p65(NF-?B p65) in rats with damp-heat syndrome of seasonal febrile disease by Ganlu Xiaodu Dan(GXD),and to explore the therapeutic mechanism of prescriptions with the actions of clearing heat and resolving dampness.【Methods】Wistar rats were randomized into 3 groups: A(normal control),B(models established by feeding of high-fat diet and colon bacillus under the high-temperature and high-humidity condition),and C(rat models treated with GXD).Reverse transcription-polymerase chain reaction(RT-PCR) analysis was used to detect the TLR4 mRNA level in hepatic macrophages and immunohistochemical method was used to detect the activation of NF-?B p65.【Results】The expression of TLR4 mRNA and NF-?B p65 was increased gradually in group B 6,12 and 24 hours after infection with colon bacillus,and the differences were significant,indicating that the expression of TLR4 mRNA and NF-?B p65 increased with the prolongation of disease course.In group C,TLR4 mRNA expression was decreased in different time points after infection,the difference of TLR4 mRNA expression 12 and 24 hours after infection was significant as compared with group B and group A(P

OBJECTIVE: To investigate part mechanisms of Th cell differentiation, and to observe the interference effect of Qingxin-II Recipe in the chronic stage of viral myocarditis (VMC), so as to provide some experimental evidences for illuminating the pathogenesis of VMC and treatment mechanisms of Qingxin-II Recipe. METHODS: According to 20%-40% death rate of experiment in advance, 100 BALB/c male mice (4 weeks old and weighing 12-15 g) were used. Twenty mice were randomly assigned to normal control group, and the other 80 mice were intraperitoneally injected with 0.1 ml normal saline containing coxsackie virus B3 at the 1st, 4th and 28th day (the virus densities were 1:2000, 1:1000 and 1:500 respectively) to induce chronic VMC. At the 42nd day, the surviving mice were randomly divided into untreated group and treatment group, with 20 mice in each group. Mice in the treatment group were orally administered with 0.2 ml Qingxin-II Recipe every day, while mice in the normal control group and the untreated group were administered with 0.2 ml normal saline. All the mice were sacrificed after 45 days, and the sera, heart and spleen cells were collected. Then the myocardial pathological changes were observed by using a light microscope, and the levels of IL-4, IL-10 and IFN-gamma in serum were detected by enzyme linked immunosorbent assay (ELISA). And the Th cell differentiation was observed by flow cytometry. RESULTS: No obvious myocardial pathological changes were observed in mice of the normal control group. Myocardial pathological changes in the treatment group were slighter than those in the untreated group. The difference of serum IL-10 level between the normal control group and the untreated group showed no significance (P>0.05), and the levels of IFN-gamma and IL-4 of the untreated group were higher than those of the normal control group (P<0.05 or P<0.01). There was no statistical difference in IL-10 level between the treatment group and the untreated group (P>0.05), while the serum levels of IL-4 and IFN-gamma of the treatment group were lower than those of the untreated group (P<0.05 or P<0.01). There was no significant difference of the Th1 cell responder between the treatment group and the untreated group (P>0.05), while the Th2 cell responder was inhibited significantly in the treatment group (P<0.05). CONCLUSION: Qingxin-II Recipe can restore the balance of Thl and Th2 cells through inhibiting the reaction of Th2.

Objective To discuss the efficacy of Compound Anisodine Injection combined with Iodized Lecithin Tablets in treatment of central serous chorioretinopathy.Methods Totally 60 patients with CSC were selected,and divided into two groups randomly.The patients in control group (29 cases) were given Iodized Lecithin Tablets.The patients in observation group (31 cases) were given Iodized Lecithin Tablets and Compound Anisodine Injection.The efficacy of Compound Anisodine Injection combined with Iodized Lecithin Tablets in treatment of central serous chorioretinopathy was evaluated by efficacy,visual acuity,light sensitivity,and adverse reaction during treatment.Results After treatment,the effective rates of observation and control groups were 93.5％ and 79.3％,and the observation group was significantly higher than control group (P ＜ 0.05).There were no statistical significance on visual acuity between two groups.After treatment,rhe visual acuity of two groups was increased and the visual acuity in the observation group was better (P ＜ 0.05).Before treatment,there were no statistical significance on light sensitivity between two groups.After 2 and 4 weeks treatment,the light sensitivity of two groups were increased and the light sensitivity in the observation group was higher (P ＜ 0.05).During treatment,there was no statistical significance on adverse reaction between two groups.Conclusion Compound Anisodine Injection combined with Iodized Lecithin Tablets has a curative effect on central serous chorioretinopathy.It could increase the visual acuity and improve the light sensitivity of eyes with good security.It is worthy of clinical use.

Rhei Rhizoma is a Chinese medicine with multiple botanical origins. There is a problem to identify it with conventional methods. To compare the characteristics of chloroplast matK gene sequences of different Rheum species and authenticate inspected species, the matK gene sequences of different species from different origins were amplified, cloned, and sequenced. Genomic DNA of Rheum plants was extracted using modified DNA extracted Kit and matK gene sequences were analyzed by ContingExpress, DNAman and MEGA5.0. The length of matK gene sequences of Rheum palmatum, R. tanguticum and R. officinale were 1 518 bp containing 57 variable loci. According to the mutation sites, R. palmatum, R. tanguticum and R. officinale were divided into different genotypes separately. Based on the established method according to the loci 587, 707, 838, we successfully identified the genuine Rheum species from its adulterants.

Objective Through the establishment of adjacent cabin blast injury model of Beagle dog,to investigate the pathophysiological changes in the experimental animals in this scenario,then speculate on the mechanisms of injury.Methods Several adjacent cabins were built in the same size with the real warship.Seven Beagle dogs were subjected to injuries from the explosion,from whom one was selected randomly to implant intracranial pressure transducers before blast,the others were tested on the pathophysiological changes after blast.The dogs were mounted on the platform of a cabinet in the adjacent cabin,subjected to injury from 650g bare TNT explosive blast.The transducers recorded the value of space and intracranial shock wave pressure.Following blast treatment,the serum levels of IL-6,IL-8,neuron specific enolase (NSE),brain and chest CT and pathological changes of the brain tissue were observed.Results Serum levels of IL-6,IL-8 and NSE were elevated to varying degrees after blast.All of them increased significantly at different time points after blast (P＜0.05).Brain and chest CT examinations did not show any significant positive results.Pathological results showed that there was a little necrosis in the brain,some neurons had karyopycnosis,karyolysis or disappearance of the nucleoli,and the cell boundaries were blurred.The blast wave was blocked greatly by the scalp and skull (about 90％),but could still penetrate them and cause brain injuries.Conclusions Explosion in the adjacent cabin causes mainly mild traumatic brain injuries.Blast wave can be blocked by the scalp and skull greatly.

Objective To investigate the effect of Yiqi Jianpi herb on content of NPY, VIP and expression of Mapk14 mRNA of rats with spleen-qi deficiency. Methods Rats were randomly divided into normal groups, model group (observed on 7 d, 14 d and 21 d), treatment group of Yiqi Jianpi herb, 10 rats in each group. The spleen-qi deficient model rats were made by rhubarb, exhaustive and hungry method, and treatment group was treated with Sijunzi decoction (20 g/kg) for 21 d, then the content of NPY, VIP in serum and small intestine were evaluated with radioimmunoassay, and expression of Mapk14 mRNA in small intestine tissue was evaluated with real time fluorescent quantitative PCR. Results In model group, content of NPY was much lower than that of normal group (P<0.05), content of VIP and relative expression of Mapk14 mRNA in small intestine tissue were much higher than that of normal group (P<0.05), the difference was obvious in 21 d group. Compared with model 21 d group, content of NPY was increased (P<0.05), content of VIP and relative expression of Mapk14 mRNA in small intestine tissue were decreased (P<0.05) in treatment group. Conclusion Yiqi Jianpi herb has functions of adjusting NPY, VIP secretion and inhibiting abnormal expression of Mapk14 mRNA.

Objective To observe effects of Kangshuai Yizhi Capsule on ATP in brain tissue and IL-6, TNF-α in serum of aging model rats, and explore the protective effects of the capsule on brain tissue.Methods Totally 72 rats were randomly divided into a normal group and a model group. The subacutely aging model rats were made by injectingD-gal, then aging rats were numbered and grouped by random number table into the model group, Kangshuai Yizhi high-dose group, Kangshuai Yizhi Capsule low-dose group and Naofukang group. All dose groups were received gavage by giving corresponding doses, while normal group and model group were given the same amount of saline everyday. After treated for 60 days, the activity of Na+-K+-ATP and Ca2+-Mg2+-ATP in brain tissue, and IL-6, TNF-α in serum were detected.Results Compared with normal group, Na+-K+-ATP and Ca2+-Mg2+-ATP were less active (P<0.05), but levels of IL-6 and TNF-α in model group were significantly higher, with statistical significance (P<0.05). Compared with model group, after treated with Kangshuai Yizhi Capsule, Na+-K+-ATP and Ca2+-Mg2+-ATP were more active, and IL-6 and TNF-α levels were down-regulated significantly in dose groups, with statistical significance (P<0.05). Meanwhile, Kangshuai Yizhi Capsule high-dose group showed the most obvious effect among dose groups.ConclusionKangshuai Yizhi Capsule has effects of enhancing activity of ATP in brain tissue and reducing level of proinflammatory factors.

The contribution of particles to cardiovascular mortality and morbidity has been enlightened by epidemiologic and experimental studies. However, adverse biological effects of the particles with different sizes on cardiovascular cells have not been well recognized. In this study, sub-cultured human umbilical vein endothelial cells (HUVECs) were exposed to increasing concentrations of pure quartz particles (DQ) of three sizes (DQPM1, <1 μm; DQPM3-5, 3-5 μm; DQPM5, 5 μm) and carbon black particles of two sizes (CB0.1, <0.1 μm; CB1, <1 μm) for 24 h. Cytotoxicity was estimated by measuring the activity of lactate dehydrogenase (LDH) and cell viability. Nitric oxide (NO) generation and cytokines (TNF-α and IL-1β) releases were analyzed by using NO assay and enzyme-linked immunoabsorbent assay (ELISA), respectively. It was found that both particles induced adverse biological effects on HUVECs in a dose-dependent manner. The size of particle directly influenced the biological activity. For quartz, the smaller particles induced stronger cytotoxicity and higher levels of cytokine responses than those particles of big size. For carbon black particles, CB0.1 was more capable of inducing adverse responses on HUVECs than CB1 only at lower particle concentrations, in contrast to those at higher concentrations. Meanwhile, our data also revealed that quartz particles performed stronger cell damage and produced higher levels of TNF-α than carbon black particles, even if particles size was similar. In conclusion, particle size as well as particle composition should be both considered in assessing vascular endothelial cells injury and inflammation responses induced by particles.

Objective To explore the clinical features of psoriasis vulgaris in patients with abnormal body mass index (BMI). Methods Three hundreds and ninety-seven patients with psoriasis vulgaris were investigated by questionnaire and physical examination, among them 245 patients at the progressive stage were selected for evaluating the degree of severity. The following items were compared between BMI≥25 group and BMI0.05). In the male patients, the average age in BMI≥25 group was higher than in BMI0.05). For the female patients, the subjects in BMI≥25 group had higher mean age and initial onset age, and longer diseace course than those in BMI0.05). Conclusion The psoriasis vulgaris patients with abnormal BMI always have higher average age and initial onset age, longer clinical history and severer symptoms, especially in the females.