Objective To investigate the prognostic factors of EGC patients,especially the relationship between prognosis and tumor size.Methods Clinical data of 119 EGC cases from 1998 to 2002 were analyzed retrospectively.Results The overall 5-year survival rate was 90.9%.and the survival rate of patients with tumor D＜2 cm.2 cm≤D＜4 cm and D≥4 cm respectively was 100%,92.0%and 80.8%(P=0.024).In this group,tumor stage,lymph node metastasis and tumor invasion depth did not affect the survival statistically.There was no correlation between tumor size and other prognostic factors.Conclusion Tumor size is an independent prognostic factor of patients with EGC,which may have some relevance to the surgical approach of EGC.

ObjectiveTo evaluate the safety and effects of pseudomonas aerug PA-MSHA vaccine on cytoimmunity in advanced gastric cancer patients. MethodsSeventy two patients with advanced gastric cancer were randomly divided into experimental group and control group. Tumor bed was treated intraoperatively by pseudomonas vaccine injection in experimental group.The venous bloods were sampled prior to surgery (preoperative) and on days 10,20,and 30 postoperatively.The total lymphocyte count and lymphocyte subpopulations were detected while the postoperative complications and adverse drug reaction were observed,prognosis was evaluated. ResultsThe total lymphocyte count(P =0.042) and the counts ofCD3+ lymphocyte(P =0.027) and NK cell increased (P =0.012) obviously in experimental group.CD8+ lymphocyte decreased(P =0.037),but the counts of CI4+ lymphocyte and CD4+/CD8+ were not significantly different.Complications were not significantly different in the two groups.One year survival rate was longer ( 94.9％ ) in experimental group than that in the control group ( 83.3％ ) ( P =0.022 ).ConclusionsPeritoneal cavity administration with pseudomonas aerug vaccine was safe,and effectively helps regulate cytoimmunity in postoperative patients of advanced gastric carcinoma.

Objective To investigate the effects on the condition of nutrition and immunologic function of gastric cancer treated with the insertion of jejunal nutrient canal after total gastrectomy.Methods In this study 113 gastric cancer patients were randomly divided into enteral nutrition group (the group of the fine-needle/catheter jejunostomy during operation,FCJ group) and parenteral nutrition group (PN group) after total gastrectomy.Evacuating time and postoperative complications were observed and relative laboratory parameters were measured prior to surgery (preoperative) and on days 3 and 7 postoperatively.Results The evacuating time in enteral nutrition group was shorter than that in parenteral nutrition group significantly[(4.1±2.2) d vs.(5.1 ±2.0) d,t =2.156,P =0.037];Serum level of prealbumin[( 18 ± 7 ) mg/dl vs.( 14 ± 7 ) mg/dl,t =2.370,P =0.022]and transferring[(205 ±45 ) mg/dl vs.( 186 ± 39 ) mg/dl,t =3.665,P =0.001]in enteral nutrition group on postoperative day 7 was higher than that in parenteral nutrition group;Serum IgA[( 2.3 ± 1.0 ) g/L vs.( 1.9 + 0.7 ) g/L,t =2.178,P=0.034],lgM[(1.4 ±0.4) g/L vs.(1.0 ±0.4) g/L,t=2.124,P=0.039]and IgG[(9.5 ±1.9) g/L vs.(9.0 ± 2.3 ) g/L,t =2.189,P =0.033]were higher in enteral nutrition group than that in parenteral nutrition group;The incidence of postoperative alimentary dysfunction in enteral nutrition group was lower than that in parenteral nutrition group( 3％ vs.13％,x2 =3.962,P =0.048).Conclusions It is safe and convenient to use early postoperative enteral nutrition support by fine-needle/catheter jejunostomy (FCJ) in gastric cancer patients immediately after total gastrectomy.

Objective To study the effects of Cad-Ⅱgene on osteogenic differentiation of human mesenchymal stem cells in vitro. Methods The human marrow mesenchymal stem cells (hBMSCs) were isolated and cultured in vitro before they were divided into 2 groups. In the transfeetion group, the hBMSCs were transfeeted with Cad- Ⅱgene;in the simple osteogenic inducement group, they were cultured in the condition medium. Then the expressions of Cad- Ⅱ protein were determined and the alkaline phosphatase (ALP) activities and the expressions of ostcocalein were measured at 3, 7, 14 and 21 days for comparison between the 2 groups. Results The ALP activity and positive expression of osteoealcin were regulated significantly higher in the transfeetion group than in the simple osteogenic inducement group at different times (P <0.05). The mineralized nodes began to appear at 14 days in the 2 groups and increased with time. Conclusion Cad-Ⅱgene transfeetion can promote differentiation of hBMSCs into the osteoblasts.

A study on the microbial transformation of glycyrrhetinic acid (GA) was conducted by a fungus, Cunninghamella blakesleeana CGMCC 3.970 systematically. After incubation with the cell cultures of C. blakesleeana CGMCC 3.970 at 25 degrees C for 7 days on a rotary shaker operating at 135 r x min(-1), GA was converted into one major product and five minor products. The products were extracted and purified by solvent extraction, macroporous adsorbent resin, silica gel column chromatography, and semi-preparative RP-HPLC chromatography. Their structures were identified as 3-oxo-15α-hydroxy-18β-glycyrrhetinic acid(1), 3-oxo-15β-hydroxy-18β-glycyrrhetinic acid (2), 7β,15α-dihydroxy-18β-glycyrrhetinic acid (3), 3-oxo-7β, 15α-dihydroxy-18β-glycyrrhetinic acid (4), 7β-hydroxy-18β-glycyrrhetinic acid(5) and 15α-hydroxy-18β-glycyrrhetinic acid(6) by the analyses of MS, 1H-NMR and 13C-NMR spectroscopic data respectively. Among them, 2 was a new compound. These results suggest that C. blakesleeana CGMCC 3.970 has the capability of selective ketonization and hydroxylation for GA. [Key words] glycyrrhetinic acid; Cunninghamella blakesleeana CGMCC 3. 970; microbial transformation
Biotransformation ; Cunninghamella ; metabolism ; Glycyrrhetinic Acid ; analogs & derivatives ; chemistry ; metabolism ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

It is the objective of this study to optimize the extraction process of red ginseng to minimize the unit cost of extracting effective ingredients. The relation between the target variables of total quantity of ginsenosides and first extraction time, first extraction solution amount, second extraction time, second extract solution amount were studied with Box-Behnken experimental design method. At the same we also considered the cost of extraction solution and energy usage. The objective function was set as unit cost of target (total quantity of ginsenosides or its purity) for the multi-objective optimization of extraction process. As a result, the optimal process parameters were found as first extraction time (108.7 min), first extraction solution amount folds (12), second extraction time (30 min), second extraction solution amount folds (8) to minimize the unit cost. It indicated that this approach could potentially be used to optimize industrial extraction process for manufacturing Chinese medicine.
Chemistry, Pharmaceutical ; economics ; methods ; Cost Control ; Drugs, Chinese Herbal ; analysis ; economics ; isolation & purification ; Panax ; chemistry

It is the objective of this study to develop dynamic predictive model for the extraction process of red Ginseng using NIR spectroscopy. NIR spectroscopy was collected online and PLSR models were developed for total quantity of ginsenosides. The performance of NIR prediction model achieved R, RMSEC, RMSEP of 0.996 09, 0.018 9, 0.016 8, respectively. A first order dynamic mass transfer model was combined with NIR prediction of the quality indicator to predict the trajectory of the extraction process based upon the initial 3 or 4 data points. The results showed good agreement with actual measurements indicating reasonable accuracy of the predictive model. It could potentially be used for advanced predictive control of the extraction process.
Chemical Fractionation ; methods ; Ginsenosides ; chemistry ; isolation & purification ; Models, Theoretical ; Panax ; chemistry ; Spectroscopy, Near-Infrared

Objective To observe the temporomandibular joint spaces changes after the plastic surgery of combined zygoma with mandibular angel.Methods We randomly selected 59 patients with prominent zygoma and mandibular angle,screening periodontal disease,TMJ pain and partial jaw.Bilateral zygomatic arch coarctation,jaw edge of the mandibular angle ostectomy and the mandibular body outer panel split were used.All patients accepted CT scan and three-dimensional reconstruction before operation,10 days after operation and 6 months after operation,and then image analysis softwares were used to measure the line distance of corresponding angle (0°,60°,120°,and 180°)at the TMJ sagittal plane.The 0° (EE 'pitch) and 60° (AA'pitch) represented for pre-space,the 60° and 120° (PP'pitch) was upper-space,the 120° and 180° (SS'pitch) was posterior-space.Results 0° and 60° had the same change trend,which slightly increased at 10 days after operation.The difference before operation and 10 days,6 months after operation were not statistically significant (P ＞ 0.05);120° and 180° had the same change trend,which increased at 10 days after operation.The difference between before operation and 10 days after operation was statistically significant (P ＜ 0.05),but the difference between before operation and 6 months after operation was not statistically significant (P＞ 0.05).Conclusions In the short term after plastic surgery of zygoma combined with mandibular angel,the TMJ upper and posterior spaces are changed,and the interspace reduced.This may indicate that the TMJ has compensatory ability,and short-term changes can return to normal.

There are 250 species of Zanthoxylum (Rutaceae) in the world. This genus distributed in tropical and subtropical regions. Alkaloids are the major and representative ingredients in these plants including quinolines, isoquinolines, and amide alkaloids, with such biological activities as anti-tumor, anti-inflammatory, analgesic, anti-virus, anti-platelet aggregation, anti-bacteria and anti- oxidant. These species have been used for a long time to treat toothache, urinary and venereal diseases, lumbago and rheumatism. This review summarizes the chemical constituents and pharmacological activities from the Z. sppplants, in an effort to the systematic research and application of the alkaloids of this genus.
Alkaloids ; chemistry ; pharmacology ; Animals ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Molecular Structure ; Zanthoxylum ; chemistry

In the present study, packaging system composed of pAAV-CMV-GFP, pAAV-RC and pHelper were transfected into human embryonic kidney 293 cells (HEK293 cells) mediated by polyethyleneimine (PEI) to explore an optimal transfection condition. Different total plasmid DNA dosages (1, 2, 3, 4, 5, 6 μg) and different PEI/Plasmid ratios (1:1, 3:1, 5:1, 7:1) were tested with detection of green fluorescence protein (GFP) with ImagePro Plus6. 0 Software. Then transfection efficiency of the optimized transfection system was further observed for different time periods(12, 24, 36, 48, 60, 72 h). The results showed that total plasmid dosage of 4 μg/well with PEI/plasmid ratio of 3 : 1-5 : 1 was an efficient transfection condition. Transfection efficiency-time curve was an S-shaped curve. Transfection efficiency reached a plateau at 60 h after transfection. The optimized conditions for PEI-mediated transfection at the optimal time result in enhanced transfection efficiency of triple plasmid into HEK293 cells.
Green Fluorescent Proteins ; HEK293 Cells ; Humans ; Plasmids ; Polyethyleneimine ; Transfection ; methods