Objective To study the application of the selective regional anemia hepatectomy. Methods The hepatic veins and hilar plates of 5 liver samples of posthepatitic cirrhosis were measured. Results Out of the 5 samples, the average width and depth of the left branch of hilar plate were 1.78cm and 0.82cm, of the left medial branch were 1.04cm and 1.02cm, of the left lateral superior branch were 0.96cm and 0.74cm, of the left lateral inferior branch were 1.02cm and 0.76cm, of the right branch were 2.02 cm and 1.28cm, of the right posterior branch were 1.20cm and 1.10cm, and of the right anterior branch, 1.22cm and 1.16cm. The average width and depth of the left hepatic vein were 0.82cm and 0.74cm, of the right hepatic vein were 1.16cm and 1.04cm, and of the middle hepatic vein, 0.92cm and 1.18cm. The regional anemia hepatectomy was performed successfully in 2 cases. Conclusions Selective occlusion of the blood flow in and out the hepatic segment or lobe may contribute to a safe and reliable hepatectomy.

Vitreoscilla Hemoglobin(VHb), with the function of increasing the growth of and product yield by a heterologous host, has been widely use in the area of fermentation, environment protection, transgenic animal and plant, recombinant protein expression, etc. Fusion protein of VHb with other enzyme or protein can enhance activity and stability of the enzyme or isolation efficiency of the protein. The reconstitution of VHb will be helpful to obtain ‘novel’ proteins which have better activity.

Recent years, chemical constituents from spice volatile oils have gained worldwide concern owing to its multiple pharmacological effects and safety for using as the natural antibacterial agents. However, their poor dissolution, strong volatility, serious irritation, weak stability, easy oxidation and low bioavailability characteristics are the major obstacle in the preparation of effective oral formulation and practical application. Therefore, there is an urgent need to select a novel carrier system that can delivery the chemical constituents from spice volatile oils more efficiently with improving their stability as well as alleviating the irritation, and develop the functional food, health products and even medicine for exerting their pharmacological effects, which also is the focus and nodus of the research on their application. This review presents recent systematic studies on their novel carrier systems, including cyclodextrin inclusion complex, liposomes, nanoemulsions, nanoparticles, solid dispersion and so on, and summarizes the characteristics, application range and problems of each novel carrier systems, in order to provide some beneficial thoughts in further developing new products of chemical constituents from spice volatile oils.
Chemistry, Pharmaceutical ; instrumentation ; methods ; Drug Carriers ; chemistry ; Nanoparticles ; chemistry ; Oils, Volatile ; chemistry ; Plant Extracts ; chemistry ; Spices ; analysis

A fusion protein of glucagons-like peptide-1 and human serum albumin (GLP-1/HSA) was expressed and secreted into the fermentation broth with recombinant Pichia pastoris. The productivity of expressed GLP-1/HSA could reach 63.6mg/L in 10L fermentor. After concentrated with hollow-fiber ultrafiltration membrane, GLP-1/HSA was purified from fermentation broth by hydrophobic chromatography, negative ion exchange chromatography and gel filtration chromatography in turn. The HPLC analysis showed that the purified GLP-1/HSA had an overall purity of 95.8%. Furthermore, the analysis of in vivo activity indicated that GLP-1/HSA had the bioactivity of native GLP-1, and could significantly reduce blood glucose level 4h after intraperitoneal administration. It was concluded that a great deal of GLP-1/HSA with higher purity could be harvested by Pichia pastoris expression system and the established purification methods. Preliminary studies show a new potential for developing the long-acting GLP-1 analogs for clinical applications.

To improve the growth enhancement activity of Vitreoscilla hemoglobin(VHb), Vitreoscilla hemoglobin gene(vgb) was mutated by error-prone PCR and then reconstituted by DNA shuffling. The shuffling library was constructed by inserting the shuffled genes into the downstream of vgb natural promoter and transforming them into E.coli DH5?. Mutated active VHb proteins were first screened in test tubes according to host cell pellets color and then in shake flasks according to host pellets wet weight .One active mutant protein, VHb′042506, was obtained after second screening. It could increased the host wet weight by 31.25% and 58.75% than that of the control which bearing natural VHb under microaerobic and extremely microaerobic conditions, respectively. Sequencing and alignment results showed that 11 nucleotides were mutated, thus resulted in 4 amino acids changes occurred in this mutant protein. CO difference spectrum test also indicated that it had higher specific absorption.

Objective: To study the biocompatibility of CFR/PEEK composite in bone tissue after implanted in lumbar intervertebral space and to evaluate its role in the interbody fusion compared to the allograft bone. Methods: Thirteen beagles were chosen among which 7 were implanted with the disk-like CFR/PEEK composite in the lumbar intervertebral space and the other 6 were implanted with allograft bone. X-ray, QCT and histological examination were employed at 6, 12 and 24 months postoperatively. Results: The X-ray results of fusion segment were in conformity with the QCT's as well as that of histological results. All animals obtained a complete fusion at 24 months. Histological examination revealed that the anterior soft tissue to the implant exhibited a nonspecific foreign body reaction with connective tissue embed the biomaterials. Carbon fragment were seen in the surrounding tissue and some of the debric were phagocytosed by foreign body giant cell. Histological examination of bone and material revealed that new bone grew along the hole of CFR/PEEK implant. Conclusion: CFR/PEEK has an excellent biocompatibility to bone tissue.

Objective To investigate whether expression of XAF1 mediated by edenovirus vector AdS/F35 could induce apoptosis in pancreatic cancer cell line BxPC-3 and its possible mechanisms.Methods Preconstructed recombinant Ad5/F35-XAF1 virus and negative control Ad5/F35-Null was tranfected into BxPC3:the expression of XAF1 mRNA and protein before and after tranfection was,analyzed by semi-quantitative RT-PCR and Western blot.The expressions of proteins including Caspase-3,PARP,Caspase-8 and bcl-2 were detected by Western blots.Cell apoptosis was assessed by Annexin-v/PI and TUNEL staining.Results After Ad5/F35-XAF1 tranfection,XAF1 mRNA and protein expression significantly increased,and the difference was statistically significant when compared with control group and Ad5/F35-Null group(P＜0.05).The apoptosis rate was(19.90±3.09)%and(9.29±2.13)%,which was significantly different(P＜0.01)from those in the Ad5/F35-Null group[(6.72±0.7)6%,(2.73±0.51)%]or in the control group[(7.22±1.53)%,(1.56±0.47)%].The expression of Caspase-3,PARP and Caspase-8 significantly increased,but the expression of bcl-2 decreased.Conclusions XAF1 plays a major role in the apoptosis of pancreatic cancer that acts thriugh the activation of death receptor pathway and mitochondrial pathway of apoptosis.

In order to analyze the immunogenicity of the recombinant EG95s protein ,the recombinant plasmids of pET-1EG95s ,pET-2EG95s and pET-3EG95s which containing respectively 1 ,2 ,and 3 copies EG95s were induced to express HIS-1EG95s ,HIS-2EG95s and HIS-3EG95s ,and then the proteins were purified and identified by western-blotting .The same im-mune process was used ,and 8 weeks-old BALB/c mice were immunized ,then its immunogenicity was analyzed by detecting an-tibody levels in mice by indirect ELISA method .Results showed that for recombinant EG95s proteins after transformation , HIS-1EG95s ,HIS-2EG95s ,and HIS-3EG95s also retained immunogenicity and could induce specific antibodies in mice .One week's late after the first immunization with HIS-1EG95s ,the antibody level of was significantly higher than HIS-2EG95s and HIS-3EG95s .But began from 2 weeks after immunization ,the antibody level of HIS-3EG95s was always higher than that of HIS-1EG95s group during the period of the immune .Both the final antibody titers after immunization of HIS-1EG95s and HIS-2EG95s groups was 1∶819 200 ,while HIS-3EG95s group was 1∶163 840 0 .HIS-1EG95s ,HIS-2EG95s and HIS-3EG95s all induced IFN-γin immune mice ,but the difference was not significant .The HIS-1EG95s showed lower response to Echinococ-cus granulosus positive serum than HIS-2EG95s and HIS-3EG95s .It’s indicated that the HIS-1EG95s and HIS-3EG95s also had good immunogenicity .HIS-3EG95s make recombinant protein immunic effects more lasting ,and benefit to generate more long-lasting protective immunity .This study provides the scientific basis for the immunization of echinococcosis (hydatidosis) .

Objective To explore the main factors affecting medical expenses of patients with colorectal cancer(CRC)and reduce such expenses by optimizing the clinical pathway of CRC according to the influencing factors.Methods Data of 467 discharged and medical insured CRC patients at Shanghai Cancer Center,Fudan University,were collected from 2009 to 2010.A multiple linear regression model was applied to analyze the influencing factors of medical expenses.The clinical pathway of CRC was optimized,and medical expenses before and after optimization were compared.Results Our data found days of stay and complications had impact on the medical expenses.Also,medical expenses were decreased accordingly with optimization of clinical pathway of CRC.Conclusion This study provides evidence for decision-making on single disease payment and medical insurance compensation on CRC.It is also meaningful to reduce the economic burden of patients with CRC.

OBJECTIVETo compare components in volatile oils of nutmeg and prepared nutmeg.

METHODVolatile oil from nutmeg and prepared nutmeg were extracted by vapor distillation. The chemical components in two kinds of volatile oils were determined and indentified by GC-MS.

RESULTThe change in quantity and quality of components in volatile oils were observed after processing. 13 new components occurred and 4 components disappeared in volatile oils after processing. The contents of methyleugenol and methylisoeugenol that are active ingredients were increased. The contents of myristicin and safrol that are toxic ingredients in volatile oils were decreased.

CONCLUSIONThe processing method of nutmeg by soaking with water and roasting with bran is scientific.

Anisoles ; analysis ; Benzyl Compounds ; analysis ; Dioxolanes ; analysis ; Eugenol ; analogs & derivatives ; analysis ; Gas Chromatography-Mass Spectrometry ; Hot Temperature ; Myristica fragrans ; chemistry ; Oils, Volatile ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Pyrogallol ; analogs & derivatives ; analysis ; Safrole ; analysis ; Technology, Pharmaceutical ; methods