Purpose:To determine the effect of doses of three-dimensional conformal radiotherapy(3D-CRT) for unresectable biliary cancer. Methods:48 patients with localized,unresectable cholangiocarcinoma were treated with 3D-CRT.Patients were grouped according to the radiotherapy dose: 12 patients received a total dose of 33-39Gy(low dose group),23 patients received 40-58Gy(medium dose group),and 13 patients received 59.4-68Gy(high dose group). The low dose group received 3Gy/fraction,medium dose group and high dose group received either 1.8 or 2Gy/fraction,5 fraction/week. Results:The median time to local progression for all patients was 10 months. The median overall survival was 12 months. 24(50%)had radiographic evidence of disease progression. 21 of those patients(87.5%) experienced local recurrence as the first radiographic sign of disease progression. The remaining 3 presented with metastatic disease as the initial sign of progression. The time of local failure(P=0.220) and the median survival(P=0.232) were not statistically different among the three groups. The rate of acute gastrointestinal side effects was not statistically different among the three groups(P= 0.485) . Conclusions:Local progresion was the predominant pattern of disease recurrence in this group of patients with unresectable biliary cancer. Because the power to detect even large difference with small numbers of patients is limited,a benefit from high dose radiotherapy cannot be excluded.

Objective To discuss the efficacy and security of entecavir and interferon sequential combination therapy on chronic hepatitis B.Methods 108 patients with chronic hepatitis B were randomly divided into the sequential combination therapy group,the entecavir group and the interferon group.Each group had 36 cases.The efficacy and security of different therapy were observed.Results The HBV DNA negative rate of the sequential combination therapy group was 77.78％,and the ALT normalization rate was 91.67％,which were both higher than those of the entecavir group and the interferon group(x2 =14.40,22.12,20.07,18.47,all P ＜ 0.05).The total effective rate of the sequential combination therapy group was 91.67％,which was obviously higher than that of entecavir group and the interferon group(x2 =12.09,6.82,all P ＜ 0.05).The entecavir and interferon sequential combination therapy had a good security.Conclusion Entecavir combined with interferon sequential therapy in the treatment of chronic hepatitis B had a significant clinical efficacy and deserved promotion.

Astrocyte elevated gene-1 (AEG-1) was cloned as an human immunodeficiency virus -1-inducible and tumor necrosis factor-α-inducible transcript in primary human fetal astrocytes by a rapid subtraction hybridization approach. AEG-1 down-regulates the expression of the glutamate transporter EAAT2, thus, it is implicated in glutamate-induced excitotoxic damage to neurons as evident in HIV-associated neurodegeneration. Meanwhile, AEG-1 expression is elevated in subsets of breast cancer, prostatic cancer, glioblastoma multiforme and melanoma cells, having a dual specificity phosphatase activity. Overexpression of AEG-1 increases and siRNA inhibition of AEG-1 decreases migration and invasion of human glioma cells, respectively. Recent observations indicate that AEG-1 exerts its effects by activating the nuclear factor kappa B (NF-κB) pathway and AEG-1 is a downstream target of Ha-ras and plays an important role in Ha-ras-mediated tumorigenesis. These findings are intensifying interest in AEG-1 as a crucial regulator of tumor progression and metastasis and as a potential mediator of neurodegeneration.

Objective To evaluate the effect and complication of inductio n chemot herapy combined with three-dimensional conformal radiation therapy (3DCRT) for l ocally advanced non small cell lung cancer (NSCLC). Methods Ninety-two such pa t ients were randomized into radiation therapy alone group(RT-, 50 patients) and i nduction chemotherapy combined radiotherapy group (CMT-, 42 patients). The indu c tion chemotherapy consisted of 2-4 cycles of platinum-based regimen. Results Th e overall median survival time was 15 months with 12 months in the RT group and 18 months in the CMT group(P=0.014)respectively. The 1-year o verall survival rates were 48.6% and 71.2% in RT and CMT group,respectively (P=0.004). The 2-year survival rates w ere 20.8% and 37.6% in RT and CMT group, respectively (P=0.0 41). Treatment was w ell tolerated and the toxicities were similar in either group. C onclusion The ad dition of induction chemotherapy to 3DCRT takes a survival advantage over 3DCRT alone for Stage Ⅲ NSCLC without increasing toxicities.

Objective To analyze hemolysin and virulence -related genes in incomplete hemolytic Staphylococcus aureus.Methods Fifty strains of incomplete hemolytic Staphylococcus aureus were isolated from patients admitted in the Second Affiliated Hospital of Soochow University during 2013 and 2014, and the isolates with complete hemolytic phenotype were also collected at the same period as the control strains . All the strains were inoculated and subcultured on four kinds of sheep blood agar plates supplied by different manufacturers to compare their hemolytic phenotype .The relative mRNA expressions of hemolysin genes (hla, hlb, hlc, hld) in standard strain, complete and incomplete hemolytic phenotype strains were detected by real-time quantitative polymerase chain reaction (RT-qPCR), and valued by 2 -△△Ct method.t test was used to compare mRNA expressions of hemolysin genes .Western blot was performed to analyze the expression of α-hemolysin.Antibiotic susceptibility test of incomplete hemolytic strains was performed using broth microdilution method.Resistant gene mecA and virulence genes pvl, tst were detected by PCR.Results The steady and hereditary incomplete hemolysis was observed in 50 strains of incomplete hemolytic Staphylococcus aureus on the sheep blood agar plates from different suppliers .Taking mRNA expression of hla, hlb, hlc, hld in standard strain as 1, the relative mRNA expressions of hemolysin genes in incomplete hemolytic strains were 0.02, 7.51, 0.06 and 0.12 respectively, there were statistical differences between standard strain and incomplete hemolytic strains (t =8.46, -56.40, 8.12 and 7.61, all P <0.05).And the expression of α-hemolysin was decreased in incomplete hemolytic strains .All the strains were identified as methicillin resistant Staphylococcus aureus (MRSA).Three strains exhibited different minimum inhibitory concentrations of teicoplanin and linezolid after subcultured , but the differences had no impact on the final results of antibiotic susceptibility test .mecA, pvl and tst genes were positive in incomplete hemolytic strains . Conclusion Staphylococcus aureus with incomplete hemolytic phenotype is methicillin resistant with higher expression of β-hemolysin and lower expressions of α-hemolysin, γ-hemolysin and δ-hemolysin.It carries plv and tst virulence genes and is of high virulence .

We constructed recombinant adenovirus vector expressing murine endostatin and evaluated the Inhibition of human umbilical vein endothelial cells (HUVEC). We proved that endostatin significantly suppressed the S phase fraction, inhibited proliferation and increased the apoptotic index of HUVEC.
Adenoviridae ; genetics ; metabolism ; Animals ; Apoptosis ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Endostatins ; biosynthesis ; genetics ; Endothelial Cells ; cytology ; Genetic Vectors ; genetics ; Humans ; Mice ; Recombinant Proteins ; biosynthesis ; genetics ; pharmacology ; Umbilical Veins ; cytology

Objective To investigate the effect and possible mechanism of microRNA-26a(miR-26a)on the syn-thesis of extracellular matrix(ECM)induced by high glucose(HG)in renal tubular epithelial cells(RTECs).Methods A model of diabetic kidney disease(DKD)was constructed by inducing RTECs with HG.MiR-26a was overexpressed in HG-induced RTECs,and RT-qPCR and Western blot were used to assess the effects of miR-26a on ECM synthesis and ferroptosis-related markers in HG-treated RTECs.Ferrostatin(Fer-1)was used to inhibit ferroptosis in the DKD model,and its impact on ECM synthesis was evaluated.RT-qPCR and Western blot were performed to measure ferroptosis-related markers,and fluorescence microscopy was used to observe the intensity of reactive oxygen species(ROS).Results Compared with the control group,the expression of miR-26a decreased in HG-treated cells,while the expression levels of ECM synthesis-related indexes fibronectin and collagen Ⅰ in-creased.After overexpressing miR-26a,the HG+miR-26a group showed a significant increase in miR-26a expres-sion and a decrease in fibronectin and collagen Ⅰ expression compared to the HG group.In terms of ferroptosis,the protein and mRNA expression of SLC7A11 and GPX4 significantly decreased,the expression of TFR-1 and AC-SL4 significantly increased,and the fluorescence intensity of ROS was significantly enhanced in the HG group com-pared with the control group.Inhibition of ferroptosis in the HG+Fer-1 group resulted in significant changes in fer-roptosis and ECM synthesis-related indicators expression levels compared to the HG group.Furthermore,re-expres-sion of miR-26a in the HG+miR-26a led to significant changes in ferroptosis-related indicators expression levels and decreased ROS fluorescence intensity compared to the HG group.Conclusions In HG-induced RTECs,miR-26a inhibits the occurrence of ferroptosis,thus reducing ECM synthesis.