OBJECTIVE:To discuss the application of biomedical fibrin glue in laparoscopic hepatectomy(LH).METHO-DS:40 patients undergoing LH were randomly divided into biomedical fibrin glue group(trial group) and control group:the patients in trial group underwent LH,transection of liver by ultrasound knife,with the transected liver surface sprayed with biomedical fibrin glue guided by laparoscope;the control group underwent routine LH only.The postoperative blood loss and bile leakage were observed by T-tube drainage.RESULTS:In the biomedical fibrin glue group,the operations for all the patients were successful,the postoperative recovery was smooth,the postoperative drainage volume,RBC in the drained fluid,level of hemoglobin and length of hospital stay were all significantly lower than in the control group(P

Objective:To establish a quality control method for Shuangshengen capsules ( Salvia miltiorrhiza, Panax ginseng and Radix pueraria) . Methods:TLC was performed to identify Salvia miltiorrhiza, Panax ginseng and Radix pueraria. HPLC was used to determine the contents of puerarin and ginsenoside Rg1 . Results:The spots obtained from the test solutions had the same color as the reference solution at the same position. The spots on the TLC plates were clear without any interference. The calibration curve was line-ar within the range of 14. 42-115. 36 ng for puerarin, and the average recovery was 99. 94%(RSD=0. 13%, n=5). The calibration curve was linear within the range of 0. 1-0. 8 μg for ginsenoside Rg1, and the average recovery was 99. 85%(RSD=0. 42%,n=5). Conclusion:The method is reliable, simple and reproducible, and suitable for the quality control of Shuangshengen capsules.

Objective To establish chicken embryo transplantation model of human colon cancer and to research the effect of so‐lanine on angiogenesis .Methods Cases with chicken embryos were divided into the low‐,mid‐and high dose solanine group and con‐trol group ,with 10 cases in each groups ,and then the cultured human colon cancer cell line HT‐29 cell lines were inoculated to the chicken embryo villus allantois membrane (CAM ) .We observed the characteristics of the transplanted tumor in CAM angiogenesis by the stereo microscope .Image analysis software of Image‐pro plus 6 .0 and immunohistochemical method were used to observe the effect of different dose of solanine on angiogenesis .Results HT‐29 cell lines were inoculated to CAM 3-5 days ,a large number of blood vessels concentrated in tumors ,growing into or acrossing the surface of tumors .While tumors also rapidly growed .We took photo on the 5th day after receiving medicine and did imaging analysis .Then we calculated the area of angiogenesis in experimental group ,which was significantly lower than that of the control group ,quantitatively in a dose‐dependent manner .There were signifi‐cant differences among the groups(P<0 .01) .Microvascular density of 3 different dose of solanine was significantly lower than that of the control group by immunohistochemical method ;the expression of Ki‐67 antigen index decreased gradually ,which was highest in the control group ,and there were significant differences among the groups (P<0 .01) .Conclusion Solanine could inhibit angio‐genesis induced by human colon cancer HT‐29 cell lines obviously ,thus inhibiting the growth of tumor and providing an important basis for the treatment of anti‐tumor angiogenesis .

Objective To screen the 12 mers-phage random peptide library using the serum from the new model rabbit and to identify the immuno-protection of the positive phages. The new model infected with Schistosoma japonicum was proved that has a high protection against the challenge infection. Methods After being absorbed by E.coli antibody, the serum of the new model rabbit was used to screen the peptide library. Through three rounds of biopaning and enriching, lots of positive phages were obtained and their antigenic ability was tested. Every mouse was immunized by subcutaneously injecting 1?10 14 pfu positive phages from the new model rabbit serum respectively at 0-2-4 th week. After 4 weeks of the last immunization, the challenge infection was performed. At the same time, several control groups including the group immunized with the phages from the rabbit serum of the normal model infected with Schistosoma japonicum, the group immunized with the original 12 mers-phage random peptide library and the control group of challenge infection were arranged. Results ①The positive clones of phage(1?10 14) from the new model rabbit serum were strongly recognized by the rabbit serum of the new model, weakly recognized by the rabbit serum of the normal model infected with Schistosoma japonicum,but not recognized by the serum of healthy rabbit. ②The reduction rate of adult worms and liver eggs induced by phages screened with the rabbit serum of the new model group and the nomal model group and that induced by the original peptide library were respectively 27 2% and 38 8 %, 17 8% and 35 0%, 4 5% and 6 0% Conclusion The new model group obtained a higher reduction rate of adult worms than the nomal model group (P

The coding sequence for the mature peptide of porcine lactoferrin (Plf) was synthesized according to the codon usage of lactobacillus, to establish optimized porcine lactoferrin Lactobacillus expression system. The gene was ligated into the Xho I/BamH I site of Lactobacillus expression vector pPG612.1 and the recombinant plasmid pPG612.1-plf was transformed individually into Lactobacillus casei ATCC393, Lactobacillus pentosus KLDS1.0413, Lactobacillus plantarum KLDS1.0344 or Lactobacillus paracasei KLDS1.0652 by electroporation. After induction with xylose, expression of the recombinant proteins was detected by Western blotting and confocal laser scanning microscopy. Secretion of recombinant Plf proteins from four recombinant species was determined quantitatively by ELISA. The antibacterial activities of recombinant proteins were measured by agar diffusion method. The result shows that Plf was correctly expressed in four species of recombinant lactobacillus, with molecular weight of about 73 kDa. The expression levels in recombinant Lactobacillus casei, Lactobacillus pentosus, Lactobacillus plantarum, Lactobacillus paracasei were 9.6 μg/mL, 10.8 μg/mL, 12.5 μg/mL and 9.9 μg/mL, respectively. Antimicrobial activity experiment shows that the recombinant proteins were active against E. coli, Staphylococcus aureus, Salmonella typhimurium, Listeria, Pasteurella. The recombinant Plf expressed by recombinant Lactobacillus plantarum showed the best antibacterial activity among all recombinant lactobacillus species. These data represent a basis for the development and application of porcine lactoferrin from recombinant lactobacillus.
Animals ; Anti-Bacterial Agents ; biosynthesis ; Lactobacillus ; metabolism ; Lactoferrin ; biosynthesis ; Recombinant Proteins ; biosynthesis ; Swine

OBJECTIVE:To observe the clinical effects of interstitial implantation of 125 I particles together with5-FU slow-release particles for advanced pancreatic cancer.METHODS:A total of12patients with advanced pancreatic cancer whose tumors were unsuitable to be resected were implanted with5-FU slow-releasing particles and then 125 I particles.The intensity of radioactive 125 I particles was0.4mCi～0.5mCi,the matched peripheral dose was60Gy～100Gy,and an average of16 125 I particles and1000mg5-FU were used for each patient.RESULTS:Relief of pain was achieved in all the subjects,with the effective rates of odynolysis at91.7%.The tumor size in all the subjects was diminished to some degree,with local control rate at83.3%.1y survival rate was25%.CONCLUSION:Interstitial implantation of 125 I particles and5-FU slow-release particles for advanced pancreatic cancer is simple,safe and effective.

Objective To explore the effects of pneumoperitioneal on respiratory function and haemodynamic and liver function in laparoscopic hcpatectomy under general anesthesia. Methods changes of pneumoperitioneal on respiratory function and haemodynamic were analyzed retrospectively in 15 LH.Results SBP、DBP、HR were higher significant after C02 insufflation(P＜0.05).SpO2 were lower significant after CO2 insufflation(P＜0.05),there was significant difference between after 30 min after deflation and before CO2 insufflation(P＞0.05);VT were lower significant after CO2 insumation(P＜0.05),there was no significant difference between after 30 min after deflation and before CO2 insufflation (P＞0.05);Ppeak were higher significant after CO2 insufflation(P＜0.05),there was no significant difference between after 30 min afterdefiation anal before CO2 insufflation (P＞0.05). Conclusion there were significant effects of pneumoperitioneal on respiratory function and haemodynamic in laparoscopic hepatectomy under general anesthesia,there weren,t significant effects of liver function.

Objective To investigate the pathogen distribution and risk factors of pulmonary infection after acute cervical spinal cord injury (ACSCI) in an attempt to offer reference for early antiinfection therapy.Methods The study comprised 223 cases who were admitted from October 2011 to October 2014.There were 149 males and 74 females,at (43.3 ± 13.5) years of age.Species of pathogens identified were gram-positive,gram-negative and mixed.Effects of age,gender,injury types and tracheotomy on pathogen distribution were analyzed.Results Gram-negative infection was found in 114 cases (51.1％),with tracheotomy accounting for 7.0％ of the cases and death accounting for 1.8％ of the cases,and the main causative pathogens were Klebsiella pneumonia,Escherichia coli,Pseudomonas aeruginosa and Acinetobacter baumannii.Gram-positive infection was found in 41 cases (18.4％),with tracheotomy accounting for 12.2％ of the cases and death accounting for 7.3％ of the cases,and the main causative pathogens were Staphylococcus aureus and Streptococcus pneumonia.Mixed infection was found in 68 cases (30.5％),with tracheotomy accounting for 22.1％ of the cases and death accounting for 13.2％ of the cases.Gender had no significant correlation with pathogen distribution.For the cases of complete spinal cord injury and tracheotomy,the ratio of mixed infection increased significantly (P ＜ 0.05).For the cases younger than 30 years,the pathogens were mainly gram-positive bacteria (P ＜ 0.05).Conclusions Main pathogens of pulmonary infection after ACSCI are gram-negative bacteria.The cases younger than 30 years are associated with higher risk of grampositive infection,while the cases with complete injury or tracheotomy are associated with higher risk of mixed infection.

Objective To study the feasibility and clinical significance of internal tourniquet (temporary arterial lumen blood flow occlusion by balloon catheter) for controlling the hemorrhage from traumatic neck and adjacent trunk arteries by temporarily occluding the arterial lumen blood flow.Methods The study involved 35 patients with traumatic neck and near trunk arteries who were firstly managed by internal tourniquet during operation to temporarily occlude the proximal aorta blood flow from May 1987 to February 2009.Each blocking time ranged from 30 to 70 minutes and the blocking was performed at an interval of 15 to 20 minutes.Then,surgical therapy was taken.Results After temporary proximal aorta blood flow occlusion with internal tourniquet,the operation presented few bleeding,with a clean operating field and clear anatomic structures.The total intraoperative blood loss was 100-400 ml.All patients were healed without ischemia of brains and limbs or relapse during the 3-14 years of followup.Conclusion Internal tourniquet,which can effectively reduce intraoperative blood loss and improve operation safety by temporarily occluding the proximal aorta blood flow,is an auxiliary approach for treating hemorrhage from traumatic neck and adjacent trunk arteries.