Hepatocellular carcinoma (HCC)is one of the most fatal malignant tumors worldwide.As an important part of cutting-edge re-search fields,proteomics has been widely used in the studies of related diseases and has currently become a crucial experimental approach to research on HCC.Significantly expressed proteins can be identified as potential biomarkers for early diagnosis and targets for therapeutic drugs for HCC.Moreover,they can be used for prediction of the recurrence and prognosis of HCC,as well as for investigation of pathogene-sis of the disease.The proteomic results from worldwide clinical studies of HCC are summarized,and it is suggested that the clinical applica-tion of results of basic research on HCC proteomics will bring great benefit to the diagnosis and treatment of HCC.

Objective To evaluate the efficiency of nutrition support in critical ill patients. Methods A retrospective analysis was made to the efficiency of the nutrition support applied to 233 critical ill patients PN+EEN→EN+per os→per os was employed as the model of nutrition support, and a nasal feeding pump was used for enteral nutrition. Results During the period of nutrition support, in the 233 patients, 26 dead, the mortality was 11.16%. Early enteral nutrition significantly decrease the mortality in critical ill patients. There existed significant differences in complications in three kinds of enteral nutrition may methods. Conclusion It is feasible to give the critical ill patients, it might help to reduced the mortality in ICU patients.

OBJECTIVE To investigate the epidemiological conditions of bacterial colonization in respiratory tract,and antibiotic resistance under the antibiotic pretreatment in liver transplanted patients. METHODS From Oct 2002 to Jan 2005,121 liver transplanted patients were admitted to ICU.Among them,45 patients who were intubated more than 48 hours were included in this study.All of the patients received antibiotic pretreatment after operation.Sputum specimens were collected after 24 hours and 48 hours in ICU via the intubated tube with bronchoscopy. RESULTS Thirty nine pathogens were isolated from 36 patients during 48 hours.Pseudomonas aeruginosa was the predominant pathogen.Only 8 bacilli were susceptible to the antibiotics. CONCLUSIONS Although antibiotic pretreatment performed,bacterial colonization in respiratory tract emerges early in liver transplanted intubated patients.Antibiotic pretreatment may make the susceptible bacteria escape.

ObjectiveTo observe the risk factors influencing the prognosis of critical ill patients with acute respiratory distress syndrome (ARDS).MethodsThe clinical data of 67 critical ill patients with ARDS from 2003 to 2004 were reviewed retrospectively.ResultsThe acute physiology and chronic health evaluation (APACHEⅡ) scores and age were all differed significantly between survivors and non-survivors groups (P<0.05). The earlier of respiratory supported, the lowest of mortality (P<0.05).Conclusion APACHEⅡ scores, age and the time of starting respiratory support are main risk factors for mortality of critical ill patients with ARDS.

ObjectiveTo evaluate the value of bispectral index(BIS) monitoring during sedation in the ICU.Methods60 patients in ICU were randomly divided into three groups. By transfusing propofol and midazolam with injecting pump, the BIS of groups Ⅰ,Ⅱ and Ⅲ were controlled within 75～85, 65～75 and 55～65, respectively. ResultsCompared with the pre-sedation, there was no remarkable change in the patients of groups Ⅰ and Ⅱ after sedation(P>0.05)while there was remarkable change in the patients of group Ⅲ(P<0.05).The average score of Ramsay in groups Ⅰ, Ⅱ and Ⅲ were 2.2, 3.4 and 4.6 while the dose of propofol were (9.54±2.43) μg/kg·min, (12.69±3.12) μg/kg·min, (14.18±2.91) μg/kg·min and the dose of midazolam were (0.23±0.09) μg/kg·min, (0.25±0.07) μg/kg·min, (0.28±0.11) μg/kg·min, respectively.ConclusionThe application of BIS can make good judgement in the sedation, which showed different choices to different needs to obtain optimistical sedation effect.

ObjectiveTo study the effect of continuous blood purification (CBP) on the multiple organ dysfunction syndrome(MODS). MethodsContinuous blood purification were used in 33 patients with MODS. Results Among 33 patients,24 mended and 8 died. The scores of Acute Physiology And Chronic Health Evaluation (APACHE Ⅱ) and MODS obviously declined(P<0.05), as well as the BUN and blood Cr (P<0.05), but the bilirubin did not (P>0.05). The haemodynamic variables were stabilized during CBP and no obvious side-effect related to CBP was found. ConclusionThe therapy of continuous blood purification can improve the prognosis to the patients with multiple organ dysfunction syndrome. The patients were able to bear at the quality better.

A quantitative analysis method of multi-components with a single marker (QAMS) for simultaneous determination of six marker compounds (one from phenolic acids and five from phthalides) in Chuanxiong Rhizoma was established by applying HPLC and using butylidenephthalide as the internal reference substance. And also the feasibility and accuracy of the established method for quality evaluation and application of Chuanxiong Rhizoma were investigated and validated. The analysis was performed with the mobile phase consisting of acetonitrile - 0.2% aqueous formic acid. The flow rate was 1.0 mL . min-1 and the column temperature was maintained at 30 °C. The detection wavelengths were set at 252 nm (for ferulic acid, Z-ligustilide, and butylidenephthalide) and 266 nm (for senkyunolide I, senkyunolide A, and coniferyl ferulate), separately, and 20 µL was injected for analysis with gradient elution. The results showed that there were no significant differences observed between the HPLC-QAMS method and the external standard method (RSD <5%). The relative correction factors were credible (RSD < 5%) in changed chromatographic conditions. The established HPLC-QAMS method can be accurately used for simultaneously evaluating and controlling the quality of Chuanxiong Rhizoma with multi-components.
4-Butyrolactone ; analogs & derivatives ; Acetonitriles ; Benzofurans ; Chromatography, High Pressure Liquid ; Coumaric Acids ; Drugs, Chinese Herbal ; analysis ; standards ; Hydroxybenzoates ; Quality Control ; Rhizome ; chemistry

This study is to investigate the anti-tumor activities of a novel cyclophosphamide derivate 4, 6-diphenyl cyclophosphamide (9b) in vivo and in vitro, and its possible mechanism of action. The inhibitory effects of 9b on human hepatoma cell line HepG2, human breast carcinoma cell line MCF-7 and human myeloid leukemia cell line K562 were measured by MTT assay in vitro. Cell cycle distribution and apoptotic rate were evaluated by flow cytometry. To evaluate the anti-tumor effect of 9b in vivo, mouse model bearing inoculated H22 tumor was established. The results indicated that 9b could inhibit the proliferation of HepG2, MCF-7 and K562 cells in a dose and time dependent manner. The ICo50 values of 9b were 32.34 micromol.L-1 to HepG2 cells, 87.07 micromol.L-1 to MCF-7 cells and 149.10 micromol.L-1 to K562 cells after incubation for 48 h. The results of flow cytometry indicated that after being treated for 48 h with different concentrations of 9b, the ratios of HepG2, MCF-7 cells at the Go/G1 phase and K562 cells at the G0/Gl phase and G2/M phase increased significantly compared with control group, and the apoptotic rate increased with the increase of the concentration of 9b. 9b could significantly reduce tumor weight of H22 solid tumor mouse model in vivo. To summarize, 9b showed significantly anti-tumor activity in vivo and in vitro, of which the mechanism might be associated with the change of cell cycle distribution and induction of tumor cell apoptosis.
Animals ; Antineoplastic Agents, Alkylating ; chemistry ; pharmacology ; Apoptosis ; drug effects ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cyclophosphamide ; analogs & derivatives ; chemistry ; pharmacology ; Dose-Response Relationship, Drug ; Female ; Humans ; Inhibitory Concentration 50 ; Liver Neoplasms, Experimental ; pathology ; Male ; Mice ; Molecular Structure ; Random Allocation ; Tumor Burden ; drug effects

Objective To detect the histological characteristics of collagen nodules from hypertrophic scars (HS) and investigate the origin of collagen nodules.Methods The scar tissues were collected from patients with plastic operation.Morphological characteristics of collagen nodules were observed by light microscopy of HE-stained sections; expressions of type Ⅰ /Ⅲ collagens were observed by polarized light microscopy of sirius red-stained sections; expression and distribution of myofibroblasts (MFb)-specific protein (α-smooth muscle actin,α-SMA) were observed by immunostaining in order to observe level of local tissue tension.Results Collagen nodules varied in shape,not only sphereshaped,and in size.Moreover,abundant fibroblasts (Fb) with large and light-stained nuclei were seen in the nodules compared to non-nodule area,indicating that the cells located in the modules were active.Some collagen nodules were composed largely of collagen type Ⅲ (green),but some mainly contained collagen type Ⅰ (red or yellow),indicating the difference in the time of nodule formation.α-SMA was expressed mainly in the deep dermis equivalent to the level of reticular layer of the new scar tissues (2 months after injury) ; α-SMA was expressed mainly in the nodules of the old scar tissues (2-10 years after injury),but almost not in non-nodule areas except for a strongly positive staining in the vessels.Moreover,α-SMA presented a heterogeneous distribution in the collagen nodules,with stronger expression in the epidermal end than in the subcutaneous tissue end and stronger expression in the superficial dermis than that in the deeper part.It was suggested that there existed massive amount of MFb and high tension in the nodules arid that the tension distribution was not uniform in or between the nodules.Conclusions Collagen nodules are of varying shape and size and collagen types are associated with the time of nodule formation.Moreover,Formation of the collagen nodules may be closely related to the distribution and evolution of the local tissue tension.

BACKGROUND: During thoracolumbar anterior operation, implant collapse is an important factor for affecting outcome in patients with thoracolumbar fracture. In particular, osteoporotic patients commonly developed implant collapse, nail channel loose, bone disunion, kyphosis deformation. Bioactive artificial vertebrae of nano-hydroxyapatite and polyamide 66 (n-HA/PA66) has good biocompatibility and biological safety and is an ideal substitute for vertebral body bone graft. OBJECTIVE: To investigate the efficacy of the bioactive artificial verteificial vertebrae of nano-hydroxyapatite and polyamide 66 (n-HA/PA66) for osteoporotic thoracolumbar burst fracture. DESIGN, TIME AND SETTING: A retrospective case analysis was conducted at the Department of Spinal Surgery, Affiliated Hospital of Luzhou Medical College from January 2004 to January 2008. PARTICIPANTS: A total of 20 patients with moderate and severe osteoporotic thoracolumbar fracture (6 males and 14 females) aged 51 -82 years, with an average of 69 years were enrolled in this study. There were 17 cases of fresh fracture and 3 cases of old fracture. n-HAyPA66 was produced by the Sichuan Guona Science and Technology Co., Ltd. This artificial vertebral body was in 10-35 mm diameter, 30-100 mm length, circular cylinder shape, 3-12 mm midheaven diameter, 2.5-6.5 mm tubal wall thickness, with the presence of 2 mm holes surrounding the vertebral body. The contact area of the vertebral body was 78.5-176.7 mm2. Fixity was anterior nail plate system (titanium alloy material) produced by Foshan Shitaibao Company. METHODS: Following conventional tracheal intubation and general anesthesia, at right arm recumbent, according to various fracture-involved segments, different regions were incised and treated with anterior decompression, implanted with artificial vertebrae with the bioactive artificial verteificial vertebrae n-HA/PA66 and fixed with steel plate. MAIN OUTCOME MEASURES: Fracture healing and implant loose were observed by radiograph. Cobb angle, the height of damaged vertebral body and spinal cord function score were compared prior to surgery, 3 months following surgery and the last follow-up. RESULTS: All the patients were successfully operated. Bleeding 200-800 mL during surgery and operation time ranged from 2.0 to 3.0 hours. There were 1 case of pulmonary infection and 1 case of delayed wound healing. A total of 20 patients were followed up for 6-42 months (averagely 18 months). Postoperative radiograph review demonstrated that closed vertebral body was healed three to four months. No significant displacement of implant was found. There was less loss of reestablished vertebral body height. Internal fixation position was good, without nail breakdown or internal fixation loose/displacement. At 3 months following surgery, significant differences in Cobb angle, the height of damaged vertebral body and spinal cord function score were detected compared with that before surgery (P < 0.05). No significant difference in postoperative two follow-up was detected (P > 0.05). CONCLUSION: The bioactive artificial vertebrae of n-HA/PA66 can increase the fusion area, reduce local pressure and prevent loosening of implants and sinking into the vertebrae, finally resulting in restoration of vertebral body height.