Objective To Study the effect of Yunnan Baiyao on the hemolysis and plasma coagulation ability of Staphylococcus aureus.ToseeknewmechanismofYunnanBaiyao′sapplicationonthebasisofanti‐virulence.Methods 0.5MCFbacterialiquidof Staphylococcus aureus standard strains(ATCC29213) were prepared and cultured in blood agar plates which containing Yunnan Baiyao of different concentrations at 37 ℃ for 24 h .Then the diameter of hemolysis rings were measured and recorded .0 .1 MCF bacteria liquids treated with Yunan Baiyao of different concentrations were prepared ,and 20μL of the bacteria liquid were added in‐to 80 μL plasma ,then cultivated at 37 ℃ for 24 h to observe the phenomenon of solidification .Results There was significant differ‐ence among the effects of Yunan Baiyao of different concentrations on the Staphylococcus aureus hemolytic rings(P<0 .05) ,and the drug concentrations inversely proportional to the diameter of hemolysis .Plasma coagulation effect of bacteria was not obvious differ‐ent after the treatment with different concentrations of Yunnan Baiyao ,and not had any regular pattern(P>0 .05) .Conclusion Yunnan baiyao can inhibit the growth of Staphylococcus aureus and its hemolytic ability but has no significant effect on plasma clot‐ting enzyme .

Objective To explore the efficacy and toxicities of S-1 in the maintenance treatment of advanced esophageal cancer. Methods A total of 52 advanced esophageal cancer patients who benefited from the first-line treatment were randomly divided into experimental group (26 cases received S-1 orally as maintenance treatment) and control group (26 cases received placebo orally) by means of coin toss. After treatment, the efficacy and toxicities of the two groups were observed comparatively. Results The overall response rates (ORR) in experimental group and control group were 84.6% (22/26) and 76.9% (20/26), respectively, and there was significant difference between the two groups (χ2=3.885, P=0.049). The median progression free survival (PFS) time of experimental group was 14.4 months, and that of control group was 12.5 months (χ2= 3.885, P= 0.049). The main adverse reactions of the two groups were grade 1-2, and grade 4 adverse reactions did not appear in all patients. Conclusion S-1 is effective and well-tolerated in the maintenance treatment of advanced esophageal cancer.

Objective To explore the down-regulation of advanced receptor for advanced glycation end products(RAGE)on expression of high mobility group protein B1(HMGB1)in glioma cells line and the volume change of transplanted tumor in nude mice. Methods HMGB1 expression in glioma LN229 cells line (divided into a control group and a study group) was observed by immunohistochemical assay and Western blot. The control group received normal saline,whereas the study group received RAGE receptor blocking agent FPS-ZM1. Expression of HMGB1 protein was detected by the same methods. The difference of the expression was examined by independent sample t test. 30 Nu/Nu nude mice were randomly divided into two groups;the above two kinds cell lines were injected into the same area of the left back of nude mice. Six weeks after injection ,the volume size was measured six times ,and the variance of repeated measurement data was used to analyze the difference of the volume change. Results HMGB1 protein was mainly expressed in the cytoplasm and nucleus. As compared with the control group,HMGB1 protein expression levels were decreased in the study group(P < 0.05),the growth rate of transplanted tumor in nude mice was significantly faster in the control group than in the study group ,the difference was statistically significant(P < 0.05). Conclusions The growth and invasion of HMGB1 protein may be involved in glioma by RAGE receptor. RAGE receptor blocker FPS-ZM1 can significantly reduce the expression of HMGB1 protein and inhibit the growth of transplanted tumor volume. It is expected to be used for the research on glioma cell apoptosis.

ObjectiveTo detect the expression level of programmed cell death (PDCD) 5 and tumor necrosis factor(TNF)-α in serum and joint fluid from rheumatoid arthritis (RA) and osteoarthritis (OA)patients,and analyze the correlation between PDCD5 and TNF-α in order to study the role of PDCD5 in the pathogenesis of RA.MethodsFiftypatients(including 26 RA,24 OA) between December 2009 and August 2010 were selected to this study.ELISA was used to detect the concentration of PDCD5 and TNF-α in the serum and joint fluid.Two-independent sample t-test and Pearson's correlation analysis were used for statistics.ResultsIn both serum and joint fluid,the concentration of PDCD5 from RA patients [(37±33) vs (37±26) pg/ml ] was significantly higher than that of OA patients [ ( 13± 14) vs ( 11 ±7 ) pg/ml ] (P＜0.05).The concentration of TNF-α in the serum from RA and OA patients did not differ significantly(P=0.122),but its concentration in joint fluid of RA patients was significantly higher than that of OA patients (P=0.037).In the serum,there was significant correlation between PDCD5 and TNF-α (r=-0.55,P=0.004; r=-0.51,P=0.012)in both RA and OA patients.The correlation between PDCD5 and TNF-α in joint fluid of RA patients was statistically significant(r=-0.49,P=0.012),but no correlation could be found in joint fluid between PDCD5and TNF-α of OA patients(r=-0.353,P=0.09).ConclusionThis study suggests that PDCD5 and TNF-αare important apoptosis-regulatory factors in RA,and play important roles in the occurrence and development of RA.

Objective:To determine the effects of enforced expression of Foxp3 in lung cancer cell with regards to proliferation and tumorgeneity. Methods: A stable subline NCIH-hFoxp3 was established by liopfectamin-mediated pcDNA plasmid transfection carrying exogenous hFoxp3. The growth curve and secrection of IL-8 and IL-10 of NCIH-hFoxp3 were evaluated using MTT and ELISA, respectively. The in vivo tumorigeneity was assessed as well by inoculation of NCIH-hFoxp3 subcutaneously in nude mice. Results:Lung cancer cell NCIH-hFoxp3 with enforced expression of Foxp3 proliferated slowly but exihited increased in vivo tumorgeneity compared with corresponding control subline. In addition,increased expression of hFoxp3 in NCIH-hFoxp3 augmented secretion and at-tenuated secretion of IL-8 and IL-10,respectively. Conclusion:Increased expression of Foxp3 may promote progression of lung cancer cell by change of cellular microenvironment and evasion of immune surveillance.

Objective To study the effect of surfactants on the dissolution profiles of poorly water-soluble acidic drug nimesulide from sustained-release tablets.Methods The anionic surfactant sodium dodecyl sulfate (SDS), cationic sur-factant cetyltrimethyl ammonium bromide (CTAB) and nonionic surfactant polysorbate 80 (Tween 80) were used to prepare nimesulide micelles .The effect of the buffer , surfactant and ionic strength on the equilibrium solubility of the drug and the in vitro release of sustained-release tablets was studied .Results and Conclusion In pH 1.2 HCl solution, water and pH 6.8 phosphate buffer, the solubilization capacity of CTAB was the highest.However, in pH 9.0 Tris buffer, when CTAB concen-tration was at about 1%, the equilibrium solubility of nimesulide was at the trough value .The in vitro release results were similar to those of equilibrium solubility and the kinetic pattern conformed to the first order equation according to the coefficient R .

There are 1?024 cases of severe head injury hospita lized． 917 of them were closed head injury (89, 55%), 107 of them were opening head injury(10.45%)． Results: good recover: 326(31.83%)．moderate disability: 185(18.07%), severe inability 139(13.50%), persistent vegetative state　59(5.75%), death 315 (30.76%)． Conclusion: The early diagn osis and treatment of sever head injury is beneficial to the outcome of these patients． Special trea tment to different phrase of severe head injury, especially the moderate hypothermia treatment, co uld improve the outcome of these patients．

Glioma is the most common primary intracranial central nervous system tumor, and postoperative radiotherapy is an important treatment for glioma. At present, computed tomography (CT) and magnetic resonance imaging (MRI) are widely applied in the delineation of radiotherapy targets for glioma. However, there are still some deficiencies in evaluating tumor scope, recurrence, radiation necrosis and prognosis, etc. Positron emission tomography (PET) / computed tomography (PET-CT) combines the molecular images of PET with the anatomical images of CT, which plays an important role in the diagnosis and differential diagnosis of glioma. With the popularization and application of multimodal imaging technology in radiotherapy, PET-CT molecular imaging, as an important supplement, contributes to the delineation of glioma target volume and the development of accurate radiotherapy, and brings benefits to the prognosis and follow-up of glioma patients. In this article, the application and research progress on PET-CT in the diagnosis, treatment and follow-up for glioma were reviewed.

Objective To study the effect of infrared irradiation on the expression of epidermal growth factor EGF) and epidermal growth factor receptor (EGFR) in the gastric mucosa of rats with chronic atrophic gastritis CAG),and to explore its mechanism.Methods Forty healthy adult and clean Wistar male rats were randomized into a normal control group (N group),a model control group (M group) and an infrared group (I group) using a random number table.CAG was induced in the rats of the M and I groups by intra-gastric infusion of 2 ml of a mixture of 30％ alcohol and 2％ sodium salicylate once every day for 8 weeks.This was combined with compulsory running and irregular fasting as pathogenic factors.After the CAG model had been established,the rats in the I group were given infrared irradiation for 10 rain once every day for 20 days.Then all of the rats were sacrificed and the expression of EGF and EGFR was observed using immunohistochemistry.Results The positive staining scores for EGF and EGFR of the M group were 4.91±2.58 and 6.75±2.63,significantly higher than those of the N group (2.10±0.65 and 4.20±2.24 respectively).Those of the I group were 2.75±1.01 and 4.75± 1.66,significantly lower than those of the M group,though not significantly different from the N group's averages.Conclusion Infrared irradiation can inhibit over-expression of EGF and EGFR in the gastric mucosa of rats with chronic atrophic gastritis.This should protect the gastric mucosa and promote tissue repair and healing.

Objective To observe the effects of modified Jianpi Yishen Decoction on urinary osteopontin (OPN) in calcium oxalate nephrolithiasis patients after percutaneous nephrolithotomy (PCNL) or ureteroscope lithotomy (URL);To clarify the mechanism of modified Jianpi Yishen Decoction on the prevention of calcium oxalate kidney stones. Methods Totally 116 calcium oxalate nephrolithiasis patients were randomly divided into trial group (62 cases) and control group (54 cases). The trial group took modified Jianpi Yishen Decoction every other day, while the control group took potassium sodium hydrogen citrate granules three times a day. The concentrations of OPN, urinary calcium and urinary oxalic acid of the patients in the two groups were observed before treatment and 2 weeks and 4 weeks of treatment. Results The concentration of urinary OPN of 2 weeks and 4 weeks of the treatment in the trial group was significantly increased compared with before treatment (P<0.05), and the difference was statistically significant compared with the control group (P<0.05). The concentration of urinary OPN in the control group had no significant change after treatment (P>0.05). The differences in the concentrations of urinary calcium and urinary oxalic acid of the two groups between before and after treatment were not significant (P>0.05). Conclusion Modified Jianpi Yishen Decoction can effectively restrain the formation of the calcium oxalate stones by increasing the level of urinary OPN, which demonstrates effective prevention in the calcium oxalate nephrolithiasis patients after PCNL or URL.