Objective To explore the possible effect of combined treatment of zoledronic acid and doxorubicin on proliferation,invasion and adhesion of SGC7901 cell line,and potential underlying mechanisms. Methods MTT and Transwell experiments were used respectively to investigate the effect of different concentrations of zoledronic acid and doxorubicin on the proliferation,adhesion and invasion of SGC7901. The mRNA levels of MMP2, TIMP2, MMP9, ICAM1 and CD44 were quantified by real time PCR. Results Gastric cell line SGC-7901 were incubated with zoledronic acid for 48 h in different concentration of 10-6,10-5,10-4,10-3 mol/L,their inhibition rates were 4.98％,12.19％,27.34％ and 73.13％ separately,which were higher than control group (P＜0.01),and enhanced along with the dose increasing and the time extension (P＜0.05).Gastric cell line SGC-7901 was incubated with zoledronic acid 10-4 mol /L and doxorubicin 0.5 mg/L,respectively,or in combination for 2 h,4 h,6 h,and thereafter,the detected adhesion rates were 5.03％,24.38％ and 59.65％ in control group,4.40％,19.77％ and 51.22％ in zoledronic acid group,4.28％, 18.62％ and 51.02％ in doxorubicin group,4.02 ％,15.02％ and 46.95％ in combination group. The adhesion rates were reduced after incubation with different medicament concentration (P＜0.05).In the study of cell invasion,the cell numbers per high power field were:105.11 ± 10.43,98.37 ± 15.75,96.19 ± 9.24,83.02 ± 19.72 after treatment with zoledronic acid,doxorubicin or their combination at different concentrations. Compared with control, signal medicament had weak effectiveness in invasiveness in SGC-7901 (P＞ 0.05),whereas in combination group it was significantly decreased (P＜0.05).Both zoledronic acid and doxorubicin decreased the mRNA expressions of CD44,MMP2,MMP9,ICAM1 while increased TIMP2 mRNA level (P＜0.05or P＜0.01) versus control.The effect was more evident with combination treatment(P＜0.05 or P＜0.01),compared with doxorubicin group. Conclusions Both zoledronic acid and doxorubicin can inhibit the proliferation,adhesion and invasion of SGC7901. Combination treatment has additive effect.It may be related to the down-regulation of mRNA of ICAM1,MMP2,MMP9,CD44 and up-regulation of mRNA of TIMP2.

Objective To investigate the changes of serum and bile from victims attacked by infantile hepatitis syndrome(IHS).Methods The constituents from 42 IHS subjects and 16 controls,including total bilirubin(TB),direct bilirubin(DB),alanine aminotransferase(ALT),glutamyltranspeptidase(?-GT),total bile acid(TBA),interleukin 6(IL-6) and tumor necrosis factor ?(TNF-? )both in bile and serum,were assayed by fully-auto chemistry analyzer and ELISA,respectively.The subjects of IHS were divided into cholestasis group and hepatitis group.Results Of IHS group,the values of serumal TB,DB,ALT,?-GT,TBA,IL-6 and TNF-? were higher than those of control(P_a

Objective To evaluate the sleep characteristics of the Korean children,and explore the measurement of improving the sleep qua-lity of minority nationality children.Methods The sleep time of 1 183 from 3 to 12 years age Korean children were investigated with questionnaire The sleep time of korean children in different ages and cities were compared.Results The mean time of total sleep time in Korean children was(10.06?1.29) h,which was decreasing with the age′s increasing.The difference in different ages groups was remarkable(Pa

0.05).Conclusion Three Hybridoma cell lines which secrete the target antibodies with satisfied affinities and specificities have been successfully raised,which provides a basis to produce a domestic-made HCMVpp65 antigen diagnosis kit.

Objective To investigate the effects of different CO2 pneumoperitoneum on cell cycle and cell cycle protein of a gastric cancer cell line. Methods Human gastric cancer cell line MNK-45 were exposed to 0,10,12 and 15 mm Hg CO2 pneumoperitoneum in vitro for 4 hrs. Cell cycle was measured by flowcytometry, the expression of CDK4 ,Cyclin D1、Rb and pRb was studied by Western-blot, and the binding ability of CDK4 and Cyclin D1 was evaluated by immunoprecipitation. Results The cell proliferation index in 15 mm Hg CO2 pneumoperitoneum group dropped significantly (27.4% ± 3. 7%) vs. (36. 4% ±3. 3%) ,P <0. 05, while that in other groups did not change significantly. The protein of CDK4、Cyclin D1and binding ability of Cyclin D1 and CDK4 dropped dramatically in the 15 mm Hg CO2 pneumoperitoneum group (0.71%±0.12%),(0.93% ±0.21%),(0.54%±0.11%),(0.18% ±0.02%) vs. (1.05% ±0.16%),(1.40% ±0.24%),(0.75% ±0.14%),(0.31% ±0.02%), all P<0.05. There were no changes of Rb in protein levels, while the phosphorylated Rb dropped obviously. Conclusion There was no obvious effects of clinical CO2 pneumoperitoneum on gastric cancer cells growth and proliferation.

OBJECTIVETo investigate whether signaling through Toll-like receptor-2 (TLR-2) can affect the expression of some cytokines in human gingival fibroblasts.

METHODSThe gingival fibroblasts were isolated and cultured in vivo, divided into blank control group, lipopolysaccharide (LPS) from Porphyromonas gingivalis (Pg) group and Escherichia coli (Ec) group. mRNA expression levels were measured by real-time polymerase chain reaction (PCR). The protein expression levels were detected by the enzyme linked immunosorbent assay (ELISA). The data was statistically analyzed by SPSS16.0 software package.

RESULTSLPS from Pg could stimulate the expression of interleukin (IL)-6 and leukemia inhibitory factor (LIF) mRNA and protein, which reached the peak (5.87 ± 0.83) at 10 h, and the expression level increased with the increase of the Pg concentration. IL-11 or oncostatin-M (OSM) mRNA expression was not affected by LPS. After treated with Pg for 48 h, the protein expression of IL-6 and LIF was up-regulated, (962 ± 57) ng/L and (47 ± 18) ng/L respectively.

CONCLUSIONSSignaling through TLR-2 controls the expression of cytokines of IL-6 family in human gingival fibroblasts.

Adolescent ; Adult ; Cells, Cultured ; Child ; Dose-Response Relationship, Drug ; Escherichia coli ; chemistry ; Fibroblasts ; cytology ; metabolism ; Gingiva ; cytology ; Humans ; Interleukin-11 ; genetics ; metabolism ; Interleukin-6 ; genetics ; metabolism ; Leukemia Inhibitory Factor ; genetics ; metabolism ; Lipopeptides ; pharmacology ; Lipopolysaccharides ; administration & dosage ; isolation & purification ; pharmacology ; Oncostatin M ; genetics ; metabolism ; Porphyromonas gingivalis ; chemistry ; RNA, Messenger ; metabolism ; Signal Transduction ; Toll-Like Receptor 2 ; agonists ; Young Adult

This study aims to explore the impact on patient's liver and kidney function by different dosage of Kudiezi injection. This study retrospectively analyzed 15 228 patients' records from 18 nationwide general hospital information system (HIS). All patients were treated with Kudiezi injection, 1 956 patients that were given doses of > 40 mL, which is above the recommended dose, acted as the observation group. Fifty-five patients receiving the recommended dose of < 40 mL were the control group. Data about alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine (Cr) and blood urea nitrogen (BUN) were collected before and after using Kudiezi injection, changes after treatment were outcomes. Also recorded were: age, costs, length of hospitalization and the patients' condition on admission. Propensity score method was used to balance 71 confounding variables such as gender, age, mortality, and costs. There were no significant difference on the four indexes between the two groups. It is hard to conclude that the use of Kudiezi injection over the recommended dose could influence the four indexes of liver and kidney from this data analysis. More conclusive evidence should be collected by further prospective study.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Alanine Transaminase ; metabolism ; Aspartate Aminotransferases ; metabolism ; Blood Urea Nitrogen ; Drugs, Chinese Herbal ; adverse effects ; therapeutic use ; Female ; Hospital Information Systems ; Humans ; Injections ; Kidney ; drug effects ; metabolism ; Liver ; drug effects ; metabolism ; Male ; Middle Aged ; Prospective Studies ; Retrospective Studies ; Young Adult

Objective To investigate whether there is exists optimal effective connections of prefrontal-amygdala in patients with major depressive disorder when they recognize dynamic positive face expressions with the technology of magnetoencephalograph (MEG),and discuss the possible aberrant mechanism of emotion processing.Methods Twenty major depressive patients and 20 well-matched healthy volunteer controls participated in the experiment.The regions of interested brain area included the primary visual cortex (V1),the precuneus (PQ),the dorsolateral prefrontal cortex (DLPFC),the anterior cingulate cortex (ACC),the amygdala (AMYG).After constructing three putative models,dynamic causal model was used to select an optimal model,then extracted all the effective connection parameters and conducted t-test under the overall optimal model between-group comparison.Results The bayesian model selection (BMS) indicated that model with top-down modulate connections between DLPFC-ACC,DLPFC-AMYG and ACC-AMYG was the most superior model,whose exceedance probability was 0.41.In the fight hemisphere of patient group,the endogenous connectivity from AMYG to ACC significantly decreased compared to healthy controls (t=-2.21,P=0.033),while the endogenous connectivity from ACC to DLPFC was enhanced significandy (t=2.50,P=0.017),which was the same with the endogenous connectivity from AMYG to DLPFC (t=2.10,P=0.040).Conclusion The effective connections of prefrontal-amygdala in major depressive disorder are exactly impaired,which may indicate that major depressive disorder have a bias toward negative.While depressed patients don' t show abnormality in the modulate connectivity under happy stimulus.

Objective To investigate the small-worldness and the betweenness centrality of the nodes in the brain structural networks and its relationship with the course and the central role of the brain regions in the transmission of information across the whole brain in depression.Methods The diffusion tensor imaging data were obtained from 27 depression patients and 33 healthy controls.The brain structural networks were constructed using the complex network theory.Results The brain structural networks had small-world properties in both groups.When compared with the healthy,the betweenness centrality of the nodes of the networks in depression significantly decreased in right superior frontal gyms (orbital part) (P=0.00035,region survived critical FDR threshold for multiple comparisons),and left putamen (P=0.00054,region survived critical FDR threshold for multiple comparisons).Significant negative correlation was found between the betweenness centrality of left hippocampus and the course in the depression(r=0.50,P=0.016).Conclusion Both of the brain structural networks in depression patients and normal people have the property of small-worldness.But the central role of orbit frontal cortex and putamen in the transmission of information across the whole brain is declined,and the betweenness centrality of hippocampus is negatively related with the course in the depression.

Objective To investigate the change of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in the skin of diabetic rats, and to explore the potential role of MMP-9/TIMP-1. Methods Diabetic rats were induced with streptozotocin (STZ). Then all rats were maintained for 6 weeks. Routine pathological examination and immnnohistochemistry were made to reveal the histological and cytological appearances. RT-PCR and Western blotting were used to detect the expression of mRNA and protein of MMP-9 and TIMP-1 in the skin. Results Six weeks after STZ treatment, examination of HE-stained skin sections from normal and diabetic animals revealed that the epidermis and dermis layers were thinner in diabetic rats than those in control rats. The skin of diabetic rats showed features of atrophy such as disorganization of connective tissue fiber bundles and enlarged space between collagen fiber bundles. In contrast, thick bundles of connective tissue were observed in the dermis of normal rat skin. In normal skin, cells had a bipolar, spindle-shaped appearance in the thick collagen bundles, while in the skin of diabetic animals the interstitial cells had a rounded, shrunken and crenated appearance. The relative values of expression of MMP-9 in diabetic group were higher than those in normal group with significant difference, however, the relative values of expression of TIMP-I in diabetic group were lower than those in control group. Conclusion The changes in cutaneous histology and cytology appear earlier than skin wound. These "underlying disorders" may be associated with the imbalance of MMP-9/TIMP-1.