Objective To explore the effect of biliary stenting combined with ademetionine on malignant obstructive jaundice.Methods According to the digital table,60 patients of malignant obstructive jaundice were randomly divided into the control group and the observation group.The patients in the control group were treated with biliary stenting individually,and the observation group received biliary stenting and combined treatment with ademeotionine.The variety of liver function and C-reactive protein were observed.Results The liver function and index of Creactive protein of patients in the observation group were significantly superior to those in the control group (all P ＜0.01).Conclusion The treatment of malignant obstructive jaundice by biliary stenting combined with ademetionine is effective.The mechanism may be related to the effect of ademetionine on promoting cytothesis,glutathione synthesis and eliminating free-radicals.

BACKGROUND:The meningeal defect patients can be treated with artificial dural materials combined neurosurgical techniques which can protect the integrity of brain tissue. OBJECTIVE:To analyze the biocompatibility and application feasibility of various artificial dura mater materials. METHODS:The artificial dura materials were classified according to the different sources, and the biocompatible and application feasibility of various artificial dura mater materials were analyzed, as wel as the advantages and disadvantages of various materials. The anticoagulant and hemolytic properties of the materials were analyzed through recalcification test and hemolysis test. 100 patients receiving col agen membrane repair selected from Department of Neurosurgery, Dongfang Hospital of Beijing University of Chinese Medicine were observed. RESULTS AND CONCLUSION:The dural repair materials mainly include autologous material, al ograft materials, dissimilar materials, synthetic materials and natural materials. Each kind of material has its advantages and disadvantages. Meningeal defect complications include cerebrospinal fluid leakage, pseudo meninges, infection and arachnoiditis. There are many problems of artificial dural materials to be solved, and the novel biological dural materials and absorbable materials are the direction of dural material research.

Objective To evaluate intra-biliary tunnel electro-resection and aspiration approach during ERCP for severe biliary stricture.MethodsA total of 14 patients with severe benign or malignant biliary stricture,which failed in previous ERCP,were recruited. First the guide wire was passed gently through the narrow segment under fluoroscopy,then the double-lumen needle knife was placed near the stricture and wire cutter was protruded.The tunnel electro-resection and aspiration was performed along the guide wire until the narrow segment could be passed through under fluoroscopy by the expanding balloon dilator for the following procedures.ResultsOf 14 patients with severe biliary strictnres,electro-resection and aspiration procedure were successful in 12 (85.7％).Metal stents were implanted in all 7 patients with malignant biliary strictures.Plastic stents were placed after balloon dilatation in 5 patients with benign stenosis.Three out of 5 patients received double plastic stents,while the two others only needed a single plastic stent.The procedure was failed in 2 patients ( 14.3％ ) with malignant biliary strictures as hilar cholangiocarcinoma invaded the left and right hepatic duct,forming a right angle in biliary stenosis,so that needle knife could not go through,and the following procedure was aborted.There were no severe complications like massive bleeding,perforation or death observed.ConclusionThe intra-biliary tunnel electro-resection and aspiration approach can significantly increase the success rate of ERCP in severe biliary strictures.

AIM To study the inhibitory effect of the cytotoxin (CTX) from guangxi cobra venom on human nasopharyngeal cancer cell (CNE) and other tumons cells. METHODS The cytotoxin was isolated and purified from Guangxi cobra venom by successive chromatography on Sephadex G-50 and CM Sepharose CL-6B columns. Its cytotoxic effects and does-effect relationship on human tumors cell lines were examined by MTT assay. RESULTS The inhibitory effects of CTX CM-5 on CNE, human ovarian carcinoma cell (Ho8990), uterus cervical carcinoma cell (HELA) and lymphoma (YAC) cell lines showed a definite does-effect relationship. The IC 50 (48 h in cubation) was 1.84, 2.59, 1.84 and 0.75 mg?L -1 respctively. The inhibitory effects of CTX CM-5 on CNE increased with time. The IC 50 (3 h and 24 h cubation) was 4.78 and 1.04 mg?L -1 respctively. CONCLUSION CTX from Guangxi cobra venom exhibites strong suppressive effect on cultured tumor cells line in vitro.

Objective To investigate the efficacy and safety of perioperative use of different hemostatic drugs in elderly patients undergoing transurethral resection of the prostate (TURP).Methods A total of 480 elderly patients with benign prostatic hyperplasia (BPH) admitted to the Departments of Urology and Gerontology of our hospital from January 2010 to October 2014 were selected and randomly divided into 6 groups (n =80,each).Patients in all groups were given preoperative oral finasteride for 1 week,with each of the non-control groups receiving perioperative heamocoagulase agkistrodon,mangabeys hemocoagulase,reptilase,ethylenediamine diaceturate,or dicynone + paraaminomethyl benzoic acid (PAMBA).Intraoperative bleeding,perioperative hematocrit,hemoglobin change,continuous bladder irrigation time,adverse reactions and other clinical parameters were recorded.Results Operations went smoothly with all patients.Changes in perioperative blood routine indexes,coagulation function,intraoperative bleeding volume and continuous bladder irrigation time had significant differences between the control group and the groups treated with hemostatic drugs (all P＜0.05).No significant differences in perioperative blood routine indexes,coagulation function,intraoperative bleeding volume and continuous bladder irrigation time were found between groups treated with heamocoagulase agkistrodon,mangabeys hemocoagulase and reptilase,or between groups treated with ethylenediamine diaceturate and dicynone+PAMBA (all P＞ 0.05).There were significant differences in the perioperative blood routine indexes,coagulation function,intraoperative bleeding volume and continuous bladder irrigation time between the groups with and without blood coagulation enzymes (all P ＜0.05).Fibrinolytic responses occurred in 2 patients in the heamocoagulase agkistrodon group and were mitigated after drug withdrawal and fibrinogen infusion.Conclusions A reasonable perioperative dose of a hemostatic drug has good clinical effects in elderly patients undergoing TURP.Hemostatic drugs such as blood coagulation enzymes have certain advantages including safety over other types of hemostatic drugs,but their doses should not be too large.

Objective To investigate the efficacy of holmium laser coagulation under choledochoscope for the treatment of intrahepatic hemobilia.Methods The clinical data of 55 patients with intrahepatic hemobilia who received holmium laser coagulation under choledochoscope at the General Hospital of Chengdu Military Area from June 2003 to August 2011 were retrospectively analyzed.After the hemobilia was confirmed with choledochoscopy,an optical fiber of holmium laser was inserted into the intrahepatic bile duct from the hole of choledochoscope.The top of the optical fiber was posed close to the bleeding region,and then the laser was stimulated for coagulation under direct vision.If the observation of the bleeding area was influenced by the bleeding,the porta hepatis was temporarily occluded with a rubber hose combined with pressurized liquid injection bag.For patients with distal bile duct stenosis and bleeding,the narrow area was first expanded by biliary balloon or laser,then hemostasis was completed after the flow of bile duct was restored.Results The hemorrhage of the 55 patients was controlled,with an average time of 5.5 minutes (range,2-15 minutes).Temporary hepatic portal clamping was applied for 16 patients (27 times),and the average blocking time was 2.2 minutes (range,1-4 minutes).Biliary rehaemorrahagia occurred after operation in 2 patients,and they were cured by non-surgical treatment.All patients were discharged after successful hemostasis.The time of follow-up was 35-49 days.The epithelium of the bile duct coagulated by intraoperative holmium laser restored flat in 41 patients,and new biliary stricture was not found in the other 14 patients.Conclusion Holmium laser coagulation under choledochoscope for intrahepatic hemobilia is simple and effective.

Tongue osteocartilaginous choristoma is the disease that there are well-developed bone and cartilage in the tongue. This article reported a case of tongue osteocartilaginous choristoma in the oral-cavity,which is rare.
Cartilage ; Choristoma ; Humans ; Tongue Diseases

Objective:To report one case of renal clear cell carcinoma transferred to the nasal cavity and sinuses treated by low temperature coblation assisted nasal malignant tumor resection under nasal endoscopye, and to review the associated literatures.Methods: Under nasal endoscope, the tumor was removed along the lateral wall of the nasal cavity with bipolar electrocautery and coblation.The vaseline gauze was used to stop bleeding, and the tumor was completely removed.Results: The intraoperative frozen section showed a capillary hemangioma.The patient was diagnosed as metastatic renal cell carcinoma to the nasal cavity and sinuses by the results of pathology and immunohistochemical staining.The postoperative recovery was uneventful and the nasal packing was removed 3 d after operation.Conclusion: Renal clear cell carcinoma transferred to the nasal cavity and sinuses is rare;under nasal endoscope, surgical resection is a good procedure to control metastasis.

Objective To study the inhibitory effect of verapamil and nicardipine on human scar fibroblast in serum-free culture and to compare the effectness of the two drugs.Methods We used MTT method to detect the effect of two drugs on human scar fibroblast proliferation:adding verapamil and nicardipine with different concentrations in the culture of fibroblasts which were in logarithmic growth phase (150,100,50,10,0μmol/L).After 24,72,and 120 h,we used MTT method to detect the cell proliferation,and converted the absorbance into growth inhibitory ratio.Results Verapamil and nicardipine showed the definite inhibition on the hypertrophic scar fibroblast (HSFB) and keloid fibroblast (KDFB) which were cultured in vitro.There was some difference in the action feature.In the earlier period,the effect of verapamil was powerful than that of nicardipine.With time,the effect did not reinforce.When fibroblast had been cultured for three to five days,the inhibition became weak.But nicardipine showed lasting inhibition on fibroblast proliferation.Conclusion Combination of verapamil with nicardipine may be a valuable method in the treatment of scar.

OBJECTIVE: To evaluate the cytotoxicity of a new type of titanium alloy Ti-25Nb-10Ta-1Zr-0.2Fe by studying the induced proliferation of L929 cells in contrast with other titania widely used in clinical practice. METHODS: The cell line was treated with extracting liquid containing different concentrations of titanium alloys. The number and morphology of cells was observed under an inverted phase contrast microscope. MTT was used to measure the relative growth rate (RGR) and judge the cytotoxicity grade. Flow cytometry was used to observe cell cycle progression. RESULTS: The RGR of TNTZ group cells at the 3 time points was (93.7±0.8), (100.6±0.4), and (106.4±0.3); the cytotoxicity grade was 1, 0 and 0 after treating for 1, 3 and 5 days; with influence on neither the cell morphology nor the cell cycle. The flow cytometry showed that the sequence of S phase cells was Ti>TNTZ>TC4>blank control >TC4ELI, with no significant difference (P>0.05). None of the 4 materials inhibited the cell proliferation. CONCLUSION The cell morphology and proliferation are not affected by TNTZ. The new titaniu alloys shows good cyto-compatibility. The cytotoxicity is grade 0, meeting the clinical application standard.
Alloys ; toxicity ; Animals ; Cell Line ; Dental Alloys ; toxicity ; Fibroblasts ; cytology ; Mice ; Niobium ; Tantalum ; Titanium ; toxicity ; Toxicity Tests ; Zirconium