Nasopharyngeal carcinoma (NPC) is prevalent in Southeast Asia, especially in the area of southern China. It is acknowl-edged that NPC is absolutely related to EBV infection. Nevertheless, there are just a few researches about the relationship between the level of EBV antibodies and the tumor stages and it hasn't come to conclusion. This review makes a summary on present research progress and would be valuable for the better understanding of the contribution of EBV antibodies to the tumor stages in NPC.

Epstein-Barr virus (EBV) is a biological factor associated with gastric carcinoma. The prognosis of EBV-associated gastric car-cinoma (EBVaGC) is good because of its distinct clinicopathological features. The pathogenesis mechanism of EBVaGC is extensively in-vestigated at present. The development of molecular techniques has stimulated the research on the expression of EBV genes in EB-VaGC, thereby providing a theoretical foundation on the diagnosis, therapy, and prevention of EBVaGC. This article reviewed present research advances in EBV genes in EBVaGC.

Objective To observe the clinical effects and nursing therapy of Jinchuangkangjungao ointment and infrared therapy in the treatment of chronic skin ulcers .Methods Seventy-five patients with chronic skin ulcers were divided into two groups :the experimental group(n=39) and the control group(n=36) .Jinchuangkangjungao ointment and infrared therapy were applied to the experimental group and the control group underwent conventional treatment ,including debridement ,dressing change and iodine wet compressing .The two group were both given basic nursing therapy .The effect and healing time were observed after 30 days . Results The experimental group′s total effective rate(92 .31% ) was significantly better than that of the control group(69 .44% ) , with significant difference(P<0 .01);The healing time of the experimental group[(11 .98 ± 6 .05)d] was significantly shorten than the control group[(16 .96 ± 7 .13)d] ,with significant difference(P<0 .05) .Conclusion Jinchuangkangjungao ointment combined with infrared therapy had noticeable effect in the treatment of chronic skin ulcers .

Child ; Child Behavior Disorders ; etiology ; Child, Preschool ; Encephalitis ; complications ; metabolism ; virology ; Enterovirus ; Female ; Humans ; Infant ; Male ; Nerve Growth Factors ; metabolism ; S100 Calcium Binding Protein beta Subunit ; S100 Proteins ; metabolism

Objective To investigate the effects of the site for access to internal jugular vein (lateral versus anterior),lying position of patients (supine versus Trendelenburg),and head rotation (0°,20°,and maximum) during central venous catheterization on the location depth and cross-sectional area (CSA) of the right internal jugular vein (IJV).Methods Fifteen healthy volunteers were recruited in this prospective observational study from September 2008 to October 2008.Healthy volunteers were placed in flat supine position and 15°.Trendelenburg position separately.In each position,IJV were measured ultrasonographically from lateral site and anterior site with the head oriented at 0°,20°,and maximum rotation separately.Data of measured CSA and location depth of internal jugular vein in different positions were compared.Results The largest CSA (2.16 ±0.89) cm2 and location depth [(1.38 ± 0.43)cm] were occurred at the lateral approach in Trendelenburg position with head oriented at maximum rotation.The CSA in Trendelenburg position was larger than that in flat supine position.Only at the maximum head rotation,lateral approach got statistically larger CSA.The effects of head rotation varied with different degrees of rotation.Conclusions Site of approach,lying position and head rotation had noticeable effects on internal jugular vein cross-sectional area.Trendelenburg position increased the CSA of IJV.

Objection To observe the change rules of quantity and species of diatom sin Hunhe River in Shenyang and to provide technology and scientific evidence for drow ning identification and the location of drow ning in forensic investigation. Methods In 2011, different locations for collecting water sam pleswere chosen in Hunhe River in Shenyang. Water sam pleswere collected and variation of quantity and species of diatom swere observed every month. And variation of dom inant species of diatom swas ob-served every week. Results The quantity, speciesand dom inant species of diatom sin Hunhe River in Shenyang varied with different tim eand locations. The quantity and species of diatom swere lowest from Decem ber to February and gradually increased, reaching peak in May and second peak in October, and then gradually decreased. The dom inant species of diatom s varied significantly adjacent two weeksat same location from April to N ovem ber, but had little changesat different locationsin same week from July to August. Conclusion The change rules of quantity and species of diatom sare com plicated and affected by various factors such as environm ent and hydrology. The change rules of speciesand quantity of diatom s should be considered in forensic investigation of drow ning identification and the lo-cation of drow ning.

ObjectiveTo investigate the inhibitory effect of lentivirusly-mediated ObR-siRNA on transplanted MCF-7 human breast cancer cells by intratumoral injection.MethodsA model of subcutaneous implanted tumor was generated through injecting MCF-7 human breast cancer cells into the nude mice.Thirty established mice with MCF-7 breast cancer cells xenograft were divided into 3 groups randomly,and mice in the experimental group were intratumorally injected with ObR-siRNA lentivirus,while the negative control group and blank control group mice were injected with the same dose of negative lentivirus and normal saline.All mice were subcutaneously injected with recombinant human leptin around the tumor site once a day.Tumor size was blindly measured every other day and the mRNA expression and protein expression levels of ObR in each group were determined.ResultsKnockdown of ObR-treated xenografted nude mice with a high leptin microenvironment was successfully established.Local injection of ObR-siRNA lentivirus significantly suppressed the established tumor growth in nude mice(P ＜ 0.01,P ＜0.01 ).Real time-PCR and Western blotting showed that the mRNA and protein expression of ObR was decreased in the ObR-siRNA lentivirus group( P ＜ 0.01,P ＜ 0.01 ).ConclusionsIntratumoral injection of recomhinant ObR-siRNA lentivirus inhibits the growth of MCF-7 cells xenografts in the nude mice,suggesting that ObR might represent a therapeutic target in the genotherapies of human breast cancer.

Objective To explore the effects of tumor necrosis factor-α (TNF-α) on ventricular arrhythmias resulted from acute myocardial infarction (AMI) in rats. Method Two hundred and forty male Wistar rats were randomized (random number) into sham operation group, AMI group and recombinant human tumor necrosis factor receptor (rhTNFR) fusion protein (Fc) group. Acute anterior wall myocardial infarction was produced in rats of AMI group with ligating the left anterior descending coronary artery (LAD) , and the rats were just operated without ligation of LAD in sham group. The rats of Fc group were treated with rhTNFR-Fc (10 mg/kg), a TNF-α antagonist, 24 hours before LAD ligation. The original ECG was recorded 10 min before ligation and the ECGs of ventricular arrhythmias occurred spontaneously or induced by programmed electrical stimulation were recorded 10 min, 20 min, 30 min, 60 min, 3 h, 6 h and 12 hours after ligation. The protein levels and mRNA expressions of TNF-α in rats in different groups were detected with histochemistry and real-time fluorescent quantitative PCR. Results The expressions of TNF-α mRNA and levels of TNF-α protein markedly increased 10 min after infarction, reached the climax 20-30 min later, and then gradually returned to the original level in AMI group and Fc group. The time-windows of spontaneous and induced ventricular arrhythmias were consistent with the time-window of expressions of TNF-α mRNA and levels of TNF-α protein. Compared with AMI group, there were lower levels of TNF-α protein and lower incidence of ventricular arrhythmias in Fc group ( P < 0.05) , but there was no significant difference in TNF-α mRNA between two groups. There was no obvious change in TNF-α in rats of sham operation group. Conclusions The expressions of TNF-α mRNA and levels of TNF-α protein induced by AMI could contribute the initiation of ventricular arrhythmias.

Objective To investigate the mechanisms of Mieyou Decoction in the treatment of Hp-associated gastritis of spleen-stomach damp-heat syndrome. Methods Seventy BALB/c mice were randomly divided into control group, model group, high concentration of Mieyou Decoction group, low concentrations of Mieyou Decoction group, and gastric triad group, with 14 rats in each group. BALB/c mice of Hp-associated gastritis of spleen-stomach damp-heat syndrome models were established by composite factor. After the success of modeling and continuous 14-day administration, the expressions of TLR2, TLR4 protein, TLR2 mRNA, and TLR4 mRNA were detected by immunohistochemistry and qPCR. ELISA was used to detect the expressions of IL-6 and IL-8 in the serum. Results Compared with control group, the expressions of TLR2, TLR4 protein, mRNA, IL-6, and IL-8 in model group significantly increased (P<0.01);the expressions of TLR2, TLR4 protein, mRNA, IL-6, and IL-8 in high concentration of Mieyou Decoction group, low concentrations of Mieyou Decoction group, gastric triad group were lower than model group, with statistical significance (P<0.01);the expressions of TLR2, TLR4 protein, mRNA, IL-6, and IL-8 in high concentration of Mieyou Decoction group were higher than gastric triad group, but the differences were not statistically significant (P>0.05). Conclusion Mieyou Decoction may play a role in the treatment of Hp-associated gastritis of spleen-stomach damp-heat syndrome through intervention in the expressions of TLR2 and TLR4.

Objective To study the expressions of HSP70 and AQP4 in the H.Pylori-associated gastritis mice of Pi-Wei hygropyrexia syndrome;To investigate the mechanism of Mieyou Soup. Methods The mice were randomly divided into high concentration of Mieyou Soup group, low concentration of Mieyou Soup group, gastric triad group, model group and control group. BALB/c mice of H.Pylori-associated gastritis mice of Pi-Wei hygropyrexia syndrome model was established by composite factor. After modeling, the mice were administered for of continuous 14 days. The drug dosage of high concentration of Mieyou Soup group, low concentrations of Mieyou Soup group, and gastric triad group were 12.4, 6.2 g/kg, and 0.279 8 mg/kg, respectively. Western Blot was used to detect the expression of HSP70 protein, and immunohistochemistry was employed to detect the expression of AQP4 protein. Results Compared with control group, the expression of HSP70 and AQP4 in model group significantly increased (P<0.05);compared with the model group, the HSP70 in high concentration of Mieyou Soup group, low concentrations of Mieyou Soup group, gastric triad group increased, the AQP4 in high concentration of Mieyou Soup group, low concentrations of Mieyou Soup group, gastric triad group decreased, with statistical significance (P<0.01). Conclusion Mieyou Soup may play a role in treatment of H.Pylori-associated gastritis mice of Pi-Wei hygropyrexia syndrome by raising the expression of HSP70, and reducing the expression of AQP4 protein expression.