Objective To evaluate the feasibility and short-term outcome of laparoscopic operation for colorectal neoplasm in comparison with open operation procedure for colorectal neoplasm, laparoscopic operation for colorectal neoplasm may be critical in the evolving practice of medieine. Methods 234 cases of colorectal neoplasm were divided into two groups and was analyzed. 103 patients with colorectal neoplasm underwent laparoscopic operation (LCS), while 131 cases received open operation (OCS). Results The mean operating time in laparoscopic operation group was significantly longer than in open operation group (P <0.05). The blood loss was less. Time to pass flatus, time to ambulate and return of bowel function were restored earlier in laparoscopic operation group than that in open operation group (P <0.05). Duration of hospital stay were longer in open operation group than that in laparoscopic operation group (P <0.05). There was not significant difference in the length, distal margin, size of tumors and number of removed lymphatic nodes(P > 0.05) between the two groups. Laparoscopic colorectal resection is better in pathologic sample compared with the traditional open operation procedure. Conclusion Laparoscopic colorectal resection is secure and effective for colorectal neoplasm, and it is with lower blood loss during operation,earlier return of bowel function and shorter hospitalization, and provide better short-term outcome compared with the traditional open procedure.

The in-vivo bioavailability of Qingxintong administrated by intramuscular injection, intravenous injection and gastric infusion was compared. Experimental results showed that Qingxintong was rapidly absorbed and excreted. The half-life time for absorption was 0.05 - 0.07 h and the half-life time for elimination was 0.14 - 0.29 h. The bioavailability of Qingxintong in the dose of 10 mg/kg by intramuscular injection or by intravenous injection was 94.71 %, and was 9.16% in the dose of 60 mg/kg by gastric infusion or in the dose of 10mg/kg by intramuscular injection.

BACKGROUND: Renal tubulointerstitial fibrosis is mainly featured as the accumulation of extracellular matrix (ECM) in renal interstitium. The tubular epithelial-myofibroblast transdifferentiation (TEMT) is important to the pathogenesy of renal tubulointerstitial fibrosis. OBJECTIVE: To examine the effects of sodium ferulate (SF) on TEMT, and ECM main components such as collagen Ⅰ, collagen Ⅲ and fibronectin, in rat renal tubular epithelial cellsinduced by transforming growth factor-beta 1 (TGF- β1)- DESIGN: Randomized and controlled experimental study based on cells. SETTING: Department of Kidney in West China Hospital of Sichuan University. MATERIALS: Rat renal tubular epithelial cells (NRK-52E) originated from American Type Culture Collection (ATCC), were offered by the laboratory of Department of Nephrology in Australian Monash Medical Center. Cell strain used in this study was cultured at the 36th passage. SF white crystal with water solubility and more than 98.0% purify, was from Chengdu Hengda Pharmaceutical Co., Ltd. Different concentrations of SF (125,250, 500μreel/L) were designed in this study. Rabbit anti-rat α-smooth muscle actin (α -SMA) was produced by Wuhan Boster Company. Enzyme-linked immunosorbent assay (ELISA) kit was the produced of Shanghai Senxiong Science and Technology Co.,Ltd. Human recombinant TGF- β1 was produced by R&D Company. DNA Engine OpticonTM real-time fluorescence quantitative polymerase chain reaction apparatus was the product of MJ Research Company. METHODS: Rat renal tubular epithelial cells (NRK-52E) cultured in vitro were divided into five groups. Control group was added with serum-contained DMEM; TGF-β1-induced group was added with TGF-β1 at final concentration of 5 ng/L; SF at different concentrations groups were added with 125, 250, 500 μ mol/L SF and TGF- β1 at final concentration of 5 ng/L,respectively. MAIN OUTCOME MEASURES: The contrast phase microscope, real-time fluorescence quantitative polymerase chain reaction and ELISA method were used to detect TEMT of NRK52E cells induced by TGF-β1 and levels of collagen Ⅰ, collagen Ⅲ and fibronectin in the supernatant. RESULTS: Morphology of NRK52E cells: Compared with control group, TGF-β1 could induce the transdifferentiation of NRK52E cells, showing fibroblast-like in morphology after 3 days, which were previously the typical road stone-like epithelial cells. In three different concentration SF groups, the morphologic transformation stimulated by TGF-β1 could be partly ameliorated in a dose-dependent manner. Expression of α-SMA mRNA: Compared with control group, 5 ng/L TGF- β1 enhanced expression of α-SMA at 6 hours, and reached a peak at 72 hours; SF depressed the expression in a dose-dependent manner at 72 hours (P < 0.05). Changes of ECM: After induced by 5 ng/L TGF- β1 for 72 hours, the levels of collagen Ⅰ, collagen Ⅲ and fibronectin in the supernatant increased significantly (P < 0.05), whereas SF decreased these levels in a dose-dependent manner (P < 0.05). CONCLUSION: TGF- β1 induces the TEMT, and promotes the secretion of collagen Ⅰ, collagen Ⅲ and fibronectin. SF can inhibit TGF- β1-induced TEMT In a dose-dependent manner.

The regulation of immune response is affected by several factors in order to maintain homeostasis.Indoleamine 2,3-dioxygenase(IDO) is a tryptophan-catabolizing enzyme expressed by different types of APC,including macrophages and dendritic cells.IDO activity leads to regulatory effects on T cells,which are mediated by tryptophan depletion in specific local tissue microenvironments,the production of proapoptotic metabolites,and inhibition of T-cell clone proliferation through regulatory T cells.IDO plays an important role in protecting the allogeneic fetus from rejection,the development of autoimmune diseases,allograft rejection,and cancer.So regulation of IDO activity may offer a novel drug-based strategy to treat immune-related diseases.

As a summary of the research progress of chemical modification of lead compounds by saccharides and their derivatives, this article studies the linkage style of saccharides with lead compounds and bioactivity changes of the modified lead compounds. The result shows that the modified lead compounds can decrease the toxicity and side effect efficiently, and enhance the pharmacal effect. Therefore, it is a promising research project to modify lead compounds by saccharides.

Objective To explore the diagnosis value of CT-guide percutaneous biopsy in the pulmonary nodules.Methods A total of 101 cases of the pulmonary nodules with unknown causes who underwent Germany-made auto-spring-gun spiral CT-guide percutaneous pulmonary biopsy were studied.Results The accuracy of centesis was 100%.97 cases were succeeded in getting diagnosis,the diagnosis rate was 96.0%.Among them,there were 61 cases of lung cancer,4 cases of malignant pleural mesothelioma,10 cases of metastatic carcinoma,16 cases of tuberculosis,6 cases of inflammatory pseudotumor.Pneumothorax occurred in 8 cases,hemoptysis occurred in 3 cases.The rate of complication was 10.9%.Conclusion CT-guide percutaneous biopsy to the pulmonary nodules is a safe and effective diagnostic means,which has a high diagnosis raze with few complication.

Aging changes of somatostatin (SS) mRNA-positive neurons in the dorsal hippocampus of old rats were studied by in situ hybridization histochemistry and image analysis. In the young rats,SS mRNA-positive cell bodies were mainly located in the pyramidal and polymorphic cell layers of the CA1 and CA2 regions, and in the strata radiatum and polymorphic cell layer of the CA3 region, and in the polymorphic cell layer of dentate gyrus. In the old rats,SS mRNA-positive cell bodies were concentrated in the polymorphic cell layer and denate gyrus. A marked decrease of number of SS mRNA-positive cell bodies and a significant increase of gray value of SS mRNA-positive cell bodies were found in the dorsal hippocampus and dentate gyrus of the old rats as compared with the young rats. No significant age difference in the sectional area of SS mRNA-positive cell bodies was observed in the dorsal hippocampus. The results showed that there were apparent changes with aging of the SS mRNA-positive cell bodies in the dorsal hippocampus of the rats. The significance of the changes remains to be studied further.

Objective This study simulated clinical implant surgery using squeeze technique by establishing a rational animal model.We investigated the microscope image in order to observe the agglutination of the cancellous bone after being compressed.Methods The cancellous bone in condyles of dog femur had been chosen as the experimental position,the implant holes were prepared using squeeze technique according to different compressing extent(0,0.6,1.2,2.0mm),and then the corresponding implants were inserted into them.After different healing periods(1 week,2 weeks,4 weeks,12 weeks),the mongerl dogs were sacrificed and the hard tissue slices were made,then the architecture of the cancellous bone was observed using microscope.Results The architecture of the cancellous bone was changed obviously by squeeze technique in 1 week,2 weeks and 4 weeks hard tissue slices.After being compressed,the bone trabecula around implants was compact.Conclusion The clinical implant surgery using squeeze technique helps improve peri-implant bone density,which is good for obtaining primary stabilities of implants.

OBJECTIVE:To prepare Lornoxicam for injection and to study its stability.METHODS:The formular and pre paration technology of Lornoxicam for injection was optimized with the index of contents,the related substances and pH value;3batches of samples'stability was investigated.RESULTS:The best formula was found to be the following:4.0g of lornoxicam,4.0g of propylene glycol,100g of mannitol and sufficient quantum of1mol/L caustic soda,3batches of sample preparations man ufactured under this formula were found to be stable in quality in the accelerated,room temperature storage test under the condition of commercial packing.CONCLUSION:The formula design was reasonable and the preparation technology was feasible.