Objective To study effect of rubescens on inflammatory cytokines and liver function of alcoholic liver injury rat model.Methods 120 SD rats were chosed for studied, randomly divided into control group, model group and treatment group,40 rats per group.Alcoholic liver injury rat model was made by ethanol feeding approach, rubescens were given for treatment.Then serum AST, ALT, α-GST, GLDH content and liver tissue NF-κB, TNF-α, IL-6, IL-8 levels were detected by electrochemiluminescence and fluorescent quantitation PCR,respectively.Results Model group serum AST, ALT,α-GST, GLDH contents and NF-κB, TNF-α, IL-6, IL-8 contents in liver tissue were higher than control group(t=12.030~37.417, P<0.05). Treatment group serum AST,ALT, α-GST, GLDH contents and NF-κB, TNF-α, IL-6, IL-8 contents in liver tissue were lower than model group (t=5.128~32.325, P<0.05).Conclusion Alcohol feeding can cause liver damage, rubescens therapy can reduce liver injury, relieve inflammation.

Objective To investigate the changes and pathogenic significance of serum interleukin-12p70 (IL-12), intefferon-γ,(IFN-γ) and IL-4 in the course of hemorrhagic fever with renal syndrome(HFRS). Methods Twenty five eases were divided into mild group (14 eases) and severe group (11 cases) according to the severity of illness. Blood samples were collected in various stages(fever, hypotensian and oliguria,diuresis stage). Serum IL-12 and IFN-γ levels were determined by enzyme-linked immunoserbent assay(ELISA), IL-4 by radioimmunoassay (RIA), blood urea nitrogen (BUN) and platelet by automatic biochemical analyzer and blood analyzer. Results Serum IL-12 levels in mild and severe groups were significantly different during various stages of HFRS (F=5.765, P<0.01). The IL-12 level of both patient groups significantly increased(P<0.01) in fever[ (0.87±0.38), (1.08± 0.77)μg/L], hypotension and oliguria [ (0.77±0.21), (2.11±2.13)μg/L] ,and diuresis stage [ (1.42±1.10), (1.20±0.88)μg/L], compared with control group [(0.56±0.10)μg/L]. In various stages, IFN-γ levels of both case groups were respectively (8.04±13.05), (5.94±8.24), (15.95±18.05), (4.41±4.10), (1.09±1.24), (1.38±1.74), (1.12±1.26), (0.19±1.29)μg/L, and the difference was statistically significant compared with control [ (0.27±0.15)rig/L]. K,-4 levels did not change significantly in the stages(F=0.682, P0.05), while the ratios of IFN-γ and IL-4 contents in mild and severe cases were significantly higher than control [(0.36±0.26) μg/L] in fever[ (2.46±3.52), (16.92±22.77)p.g/L], hypotension and oliguria[(2.52±2.72), (1.77±2.06) μg/L],diuresis stage [(1.45±2.28), (2.32±3.98)μg/L], the difference had statically significant (P<0.05 or 0.01).The curve of IL-12 was similar to that of BUN, but was contrary to blood platelet count. Conclusions The elevated levels of IL-12 and IFN-γ, with the imbalance of Th1/Th2 might be the main cause of systemic inflammatoryresponse and involved in the pathogenesis of HFRS.

Objective To investigate the diagnosis and treatment of mucinous cystadenoma and cystadenocarcinoma of the pancreas. Methods The clinical data of 23 patients with pancreatic mucinous cystadenoma or cystadenocarcinoma confirmed by pathology from May 1993 to October 2005 was retrospectively studied. Results Fifteen cases of mucinous cystadenoma, 4 cases of mucinous cystadenocarcinoma, and 4 cases of mucinous cystadenoma with malignancy were included in this data. Ultrasonography, CT, and MRI/MRCP displayed a cystic tumor in 73.7%, 68.8%, and 83.3% of all patients, respectively. The mean diameter of the tumors was 9.4 cm, and the maximum diameter of the tumors was 20 cm. Pancreaticoduodenectomy, distal pancreatectomy and splenectomy, local excision of cystadenoma and other procedures were performed according to the site of tumors. The resectable rate was 82.6%. Twenty-one patients (91.3%) were followed up. All of the 14 patients with mucinous cystadenoma were alive with the follow-up from 4 months to 11 years after operation. Two of the 4 cases of mucinous cystadenoma with malignancy were alive with the follow-up of 5 months and 4 years after operations, while the other 2 died with the survival time of 15 months and 18 months. One patient with mucinous cystadenocacinoma was alive 5 months after operation, while the other 2 died with the survival time of 7 months and 13 months. Conclusion Mucinous cystadenoma has a malignant tendency. As the mucinous cystadenocacinoma is a low malignant potential tumor, the resectable rate is high and prognosis is satisfactory. The excision of total tumor including the surrounding pancreatic tissue is the first choice of the treatment. Pancreaticoduodenectomy, distal pancreatectomy and splenectomy, and other procedures according to the site tumors is feasible.

Cutaneous Fistula ; Digestive System Abnormalities ; therapy ; Endoscopy, Gastrointestinal ; methods ; Female ; Humans ; Infant ; Treatment Outcome

Diagnosis, Differential ; Ependymoma ; metabolism ; pathology ; Female ; Hemangioblastoma ; metabolism ; pathology ; Humans ; Ki-67 Antigen ; metabolism ; Meningeal Neoplasms ; metabolism ; pathology ; surgery ; Meningioma ; metabolism ; pathology ; surgery ; Middle Aged ; Mucin-1 ; metabolism ; Neoplasm Recurrence, Local ; Vimentin ; metabolism

AIMTo develop a novel non-viral gene delivery systems lipid-polycation-DNA complexes (LPD) and investigate their transfection efficiencies in vitro.

METHODSLPD were prepared as follows by first mixing the plasmid DNA and protamine together, then the resulted polyplexes were incubated for 10 min at room temperature, followed by addition of preformed cationic liposomes. The morphology of LPD was observed by transmission electron microscopy. The diameter and surface charge of LPD were measured by photon correlation spectroscopy (PCS). The nuclease protection ability of LPD was evaluated by agarose gel electrophoresis. Estimation of transfection efficiency was performed by galactosidase assay in Chang, HepG2 and SMMC-7721 cells.

RESULTSThe average diameter and the zeta potential of LPD were 143.5 nm and 32.6 mV, respectively. LPD could protect the plasmid DNA from nuclease degradation after 2 hours incubation at 37 degrees C while the naked DNA degraded rapidly. The average transfection efficiencies were (69 +/- 6)%, (43 +/- 7)% and (96.2 +/- 1.8)% in Chang cells, HepG2 cells and SMMC-7721 cells respectively.

CONCLUSIONLPD could be prepared easily with small particle sizes and high transfection activities. LPD may be good non-viral vectors for applications in gene delivery.

Carcinoma, Hepatocellular ; pathology ; Cell Line, Tumor ; Cells, Cultured ; DNA ; Genetic Vectors ; Hepatocytes ; cytology ; Humans ; Liposomes ; Liver Neoplasms ; pathology ; Particle Size ; Protamines ; Transfection

Adult ; Herpes Zoster ; etiology ; Herpesvirus 3, Human ; genetics ; Humans ; Male ; Middle Aged ; Mutation

Animals ; Bacterial Toxins ; administration & dosage ; Biological Transport ; Cell Membrane Permeability ; Drug Delivery Systems ; Endocytosis ; Liposomes ; chemistry ; Peptides ; administration & dosage ; Viral Envelope Proteins ; administration & dosage

Objective To investigate clinical significance of computed tomography (CT) scan in diagnosis of bronchial foreign body in children.Methods Twenty-one suspected children with bronchial foreign body were studied with spiral CT cross-section scan and coronal reconstruction and diagnosis was confirmed with bronchoscopy.Results The foreign body was displayed in all of 21 cases. CT scan showed foreign body was located in right main bronchial 12 cases, right middle bronchial 1 case, right inferior lobar bronchial 2 cases and left main bronchial 6 cases. Foreign bodies were extracted with bronchoscopy.Conclusion CT scan can display and locate accurately foreign body in bronchial of children,and has very important diagnostic value in patients having atypical histories, clinical and radiological findings.

This study is to report the preparation of complexes of Ad5 and anionic liposomes (AL-Ad5), the amplification of adenoviruses with enhanced green fluorescent protein (eGFP) reporter gene performed by HEK 293 cells, the adenoviral vectors purified by cesium chloride gradient centrifugation, and the titer of adenovirus determined by cytopathic effect (CPE) method, hexon capsid immunoassay and quantitative-PCR (Q-PCR), separately. The prescription and experiment conditions were optimized by central composite design (CCD). The complexes of Ad5 and AL-Ad5 were formulated by the calcium-induced phase change method. The morpholopy, particle size and zeta potential were detected by dynamic light scattering (DLS) and transmission electron microscopy (TEM), respectively. Additionally, the bicolourable fluoresce-labeled complexes (F(labeled)-AL-Ad5) were prepared and their intracellular location in MDCK cells was detected by confocal laser scanning microscopy (CLSM). The results indicate that the complexes of AL-Ad5 exhibited a uniform distribution with a particle size of 211 +/- 10 nm and a zeta potential of -41.2 +/- 2.2 mV. The result of CLSM demonstrates that the intracellular location of red fluoresce-labeled adenovirus was consistent with that of green fluoresce-labeled liposomes suggesting that the naked adenovirus was well encapsulated by the anionic liposomes in complexes of AL-Ad5.
Adenoviridae ; genetics ; ultrastructure ; Animals ; Anions ; Cytopathogenic Effect, Viral ; Dogs ; Drug Compounding ; methods ; Genetic Vectors ; Green Fluorescent Proteins ; chemistry ; HEK293 Cells ; Humans ; Liposomes ; chemistry ; pharmacokinetics ; ultrastructure ; Madin Darby Canine Kidney Cells ; Microscopy, Confocal ; Microscopy, Electron, Transmission ; Particle Size ; Polymerase Chain Reaction ; methods ; Recombinant Fusion Proteins ; ultrastructure