目的探讨实施社保医疗后肺部感染患者的治疗效果与费用。方法随机选择肺部感染的住院患者60例(社保组30例,非社保组30例),社保组根据社保文件精神对患者进行检查治疗,非社保组仍按以往治疗方案并结合患者意愿进行检查治疗,分析两组的疗效与费用。结果社保组的肺部感染住院患者总的直接医疗费用平均为(1540.73±991.43)元,非社保组为 (2232.02±844.98)元;总医疗费用社保组平均为(1716.65±1028.33)元,非社保组为(2653.89±966.39)元;住院天数社保组平均为(11.8±6.42)天,非社保组为(15.3±4.71)天 ,社保组总的医疗费用显著低于对照组(P<0.001),但疗效无显著性差异。结论实施社保医疗可在有效降低肺部感染患者总的医疗费用的同时,保证疗效,真正把有限的医疗资源用在需要的患者身上。

OBJECTIVETo investigate the expression status of CXCR7 in gastric cancer tissues and cell lines.

METHODSThe expression status of CXCR7 was detected in 35 primary gastric cancer tissues and matched adjacent tissues by immunohistochemistry and RT-PCR. The correlation of CXCR7 expression with the clinicopathological parameters and risk factors of gastric cancer was analyzed. The expression of CXCR7 in gastric cell lines (HGC-27, MGC-803, BGC-823, SGC-7901 and MKN-28) was also detected by immunofluorescence assay.

RESULTSThe expression of CXCR7 was significantly higher in gastric cancer tissues than in adjacent tissues (P<0.01). CXCR7 expression was not correlated with age, gender, smoking history, Helicobacter pylori infection, tumor location or the pathological type, but showed a higher expression level in patients with a alcohol-drinking history than in those without (P<0.05). CXCR7 was expressed with variable intensities in the 5 gastric cancer cell lines without correlation with the degrees of cell differentiation; its expression was the highest in SGC-7901 cells, a moderately differentiated human gastric adenocarcinoma cell line.

CONCLUSIONSCXCR7 is highly expressed in gastric cancer tissues with variable intensities in 5 gastric cancer cell lines, suggesting its important role in gastric cancer progression.

Cell Differentiation ; Cell Line, Tumor ; Disease Progression ; Helicobacter Infections ; Humans ; Immunohistochemistry ; Receptors, CXCR ; metabolism ; Signal Transduction ; Stomach Neoplasms ; diagnosis ; metabolism

OBJECTIVETo investigate the effect of high glucose on the expressions of toll-like receptor 4 (TLR4) and proinflammatory cytokine production induced by lipopolysaccharide (LPS) in hepatic stellate cells in vitro.

METHODSHepatic stellate cell line T6 was cultured in vitro and stimulated by high glucose. The mRNA and protein expression of TLR4 were detected by RT-PCR and Western blotting, respectively. After a 24-h pretreatment with high or low glucose, the cells were stimulated with LPS for 2 h, and Western blotting was used to detect the nuclear translocation of nuclear factor-κB (NF-κB); at 24 h of LPS exposure, the cells were examined for MCP-1 and IL-6 mRNA and protein expression levels with RT-PCR and ELISA, respectively.

RESULTSHigh glucose significantly increased the mRNA and protein expressions of TLR4 (P<0.01) in a time- and dose-dependent manner. High glucose promoted NF-κB nuclear translocation and significantly enhanced the expression and secretion of both MCP-1 and IL-6 (P<0.01). Pretreatment with high glucose significantly promoted LPS-induced NF-κB nuclear translocation (P<0.01) and the mRNA expression and secretion of MCP-1 and IL-6.

CONCLUSIONSHigh glucose can increase TLR4 mRNA and protein expressions in hepatic stellate cells and promote LPS-induced NF-κB activation and production of proinflammatory cytokines.

Animals ; Cells, Cultured ; Chemokine CCL2 ; metabolism ; Glucose ; metabolism ; Hepatic Stellate Cells ; metabolism ; Hyperglycemia ; metabolism ; Interleukin-6 ; metabolism ; Lipopolysaccharides ; adverse effects ; NF-kappa B ; metabolism ; RNA, Messenger ; genetics ; Rats ; Signal Transduction ; Toll-Like Receptor 4 ; metabolism

Objective To investigate the efficacy and safety of tenofovir alafenamide fumarate(TAF)in the treatment of patients with decompensated hepatitis B cirrhosis.Methods We retrospective analyzed 41 patients with decompensated hepatitis B cirrhosis receiving TAF antiviral therapy for 24 weeks at Wuwei Tumor Hospital in Gansu province from June 2022 to June 2023.Primary endpoint was proportion of patients achieving virologic response(HBV DNA<20 IU/mL).Other endpoints included changes in ALT,AST,TBIL,Child-Pugh score(CTP),and MELD score from baseline to week 24.In terms of safety,changes in Scr,eGFR and adverse events from baseline to week 24 were observed.Results Of 41 patients,73.2%were male(n = 30),with mean age of 53.49 years.24 weeks after treatment with TAF,HBV DNA was undetectable in 90.2%of the patients.The median levels of ALT,AST and total bilirubin(TBIL)were 50.70 U/L,48.70 U/L and 26.40 μmol/L respectively at base-line,and reduced significantly to 31.50 U/L,37.8 U/L and 23.8 μmol/L(P<0.05)respectively after 24-week therapy with TAF.CTP score was improved in 58.6%of the patients(n = 24),and so was MELD score in 63.4%of the patients(n = 26)at week 24.The median serum creatinine and eGFR were 58.5 μmol/L and 106.15 mL/(min·1.73 m2)respectively at baseline,and creatinine and eGFR were stable during treatment.No drug-related adverse events or severe adverse events occurred during treatment,neither did creatinine and eGFR liver transplan-tation,HCC or death.Conclusions Our clinical studies demonstrated better effectiveness and safety of TAF for decompensated CHB patients.

This study aimed to explore the link between block copolymers' interfacial properties and nanoscale carrier formation and found out the influence of length ratio on these characters to optimize drug delivery system. A library of diblock copolymers of PEG-PCL and triblock copolymers with additional PEI (PEG-PCL-PEI) were synthesized. Subsequently, a systematic isothermal investigation was performed to explore molecular arrangements of copolymers at air/water interface. Then, structural properties and drug encapsulation in self-assembly were investigated with DLS, SLS and TEM. We found the additional hydrogen bond in the PEG-PCL-PEI contributes to film stability upon the hydrophobic interaction compared with PEG-PCL. PEG-PCL-PEI assemble into smaller micelle-like (such as PEG-PCL4006-PEI) or particle-like structure (such as PEG-PCL8636-PEI) determined by their hydrophilic and hydrophobic block ratio. The distinct structural architectures of copolymer are consistent between interface and self-assembly. Despite the disparity of constituent ratio, we discovered the arrangement of both chains guarantees balanced hydrophilic-hydrophobic ratio in self-assembly to form stable construction. Meanwhile, the structural differences were found to have significant influence on model drugs incorporation including docetaxel and siRNA. Taken together, these findings indicate the correlation between molecular arrangement and self-assembly and inspire us to tune block compositions to achieve desired nanostructure and drug loading.