Objective To study the curative effect of edaravone in the treatment of patients with transient cerebral ischemia and its mechanism.Methods 92 patients with TIA treated in our hospital from January 2015 to December 2015 were selected,they were randomly divided into observation group and control group,with 46 cases in each group.Both two groups were given conventional treatment,while the observation group added intravenous infusion of edaravone injection,two groups were treated for 2 weeks.Then,the efficacy and adverse reactions during treatment in two groups were compared.The levels of serum tumor necrosis factor alpha(TNF -α),transforming growth factor beta 1(TGF -β1)and matrix metalloproteinase -9(MMP -9)were detected by enzyme -linked immunosorbent assay(ELISA)in two groups before treatment and 1d,4d,7d,14d after treatment.The levels of high/low shear viscos-ity(HSV /LSV),plasma viscosity(PV),as well as fibrinogen(Fib)were also compared before treatment and 14d after treatment.Results The total effective rate of the observation group was 89.13%,which was significantly higher than 71.74% in the control group(χ2 =4.420,P <0.05).The levels of HSV,LSV,PV and Fib in two groups 14d after treatment were significantly lower than before treatment,which of the observation group were significantly lower than the control group,the differences were statistically significant(P <0.05).The serum levels of TNF -α[(5.99 ± 2.36)pg/mL,(5.82 ±2.34)pg/mL],TGF -β1 [(13.94 ±3.18)pg/L,(12.33 ±3.57)pg/L]and MMP -9 [(42.94 ±11.65)ng/mL,(38.26 ±17.58)ng/mL]in the observation group at 7d and 14d after treatment were sig-nificantly lower than before treatment,the differences were statistically significant (t =4.703,6.031,5.667;5.074, 7.623,6.150;all P <0.05),and which in the observation group were lower than the control group in the same peri-od,the differences were statistically significant(t =2.025,5.344,5.894;2.616,6.120,2.228;all P <0.05).The levels of above indicators 14d after treatment in the control group were significantly lower than before treatment,the differences were statistically significant(P <0.05).There were no serious adverse reactions in the two groups during the treatment.Conclusion Edaravone has obvious curative effect in the treatment of patients with TIA,which works by regulating the hemodynamic and the levels of TNF -α,TGF -β1 and MMP -9,it is safe and worthy of promotion.

Objective To investigate the protective effect of magnesium isoglycyrrhizinate on the liver of hepatic arterial chemoembolization.Methods 68 patients with hepatic arterial chemoembolization were selected as research subjects,they were divided into magnesium isoglycyrrhizinate group and control group.All patients were routinely given hepatoprotective drug treatment from seven days before surgery until three days after surgery,magnesium isoglycyrrhizinate group was given magnesium isoglycyrrhizinate treatment on the basis of hepatoprotective treatment. Detected and compared the alanine aminotransferase,aspartate aminotransferase,total bilirubin,total protein,albumin and cholinesterase levels before and after liver cancer before and after surgery.Results The alanine aminotrans-ferase,aspartate aminotransferase levels at 3 days after surgery[(60.2 ±25.8)and (71.5 ±29.6)IU /L]were higher than before surgery in the control group[(34.7 ±18.6)and (49.5 ±20.4)IU /L](t =7.264 and 5.974,all P <0.05).The alanine aminotransferase,aspartate aminotransferase levels at 3 days after surgery had no differences with before surgery in the magnesium isoglycyrrhizinate group (P >0.05).The alanine aminotransferase,aspartate amin-otransferase and total bilirubin levels before surgery in magnesium isoglycyrrhizinate group had no differences with the control group (P >0.05).The alanine aminotransferase,aspartate aminotransferase levels at 3 days after surgery in the magnesium isoglycyrrhizinate group[(44.8 ±22.8)and (57.3 ±24.8)IU /L]were higher than those in the control group[(60.2 ±25.8)and (71.5 ±29.6)IU /L](t =6.385 and 7.358,all P <0.05).The albumin and cholinesterase levels at 3 days after surgery in the magnesium isoglycyrrhizinate group and the control group[(28.4 ± 4.7)g/L,(8.0 ±4.8)kU /L and (29.3 ±3.5)g/L,(6.9 ±4.3)kU /L]were lower than before surgery[(34.2 ± 4.3)g/L,(9.3 ±5.4)kU /L and (33.7 ±3.9)g/L,(9.0 ±5.8)kU /L](t =11.834,6.247 and 10.276,8.743,all P <0.05).The albumin and cholinesterase levels before surgery in the magnesium isoglycyrrhizinate group had no differences with the control group (P >0.05).The albumin and cholinesterase levels at 3 days after surgery in the magnesium isoglycyrrhizinate group[(28.4 ±4.7)g/L,(8.0 ±4.8)kU /L]were lower than those of control group [(29.3 ±3.5 )g/L,(6.9 ±4.3)kU /L](t =8.436 and 6.947,all P <0.05 ).The incidence rates of adverse reactions of the magnesium isoglycyrrhizinate group (upper abdominal pain incidence rate was 35.3%,fever incidence rate was 29.4%,nausea and vomiting incidence rate was 52.9%)were lower than those of the control group(55.9%,88.2%,76.5%)(χ2 =7.246,6.472,6.274,all P <0.05).Conclusion Hepatic arterial chemoem-bolization has some damage to liver function of liver cancer patients.Magnesium isoglycyrrhizinate can reduce liver damage,improve liver synthetic function,and has a protective effect on liver.

Objective:To study new dosage form of Bingpeng powder referring to oversea patent. Methods: To disperse Bingpeng powder, adhesive and viscosity builders (such as gelatin, carboxymethylcellulose, hypromellose or carbomer), nonionic emulsifier (gluceryl monostearate) and white vaseline into liquid paraffin, stir to attain paste. The formulation was screened by adhesive strength, shape keeping characteristic and water asorbing value. Results: The better formulation: Bingpeng powder 5.0g, hypromellose 21.0g, carbomer 14g, gluceryl monostearate 3.0g, white vaseline 7.0g, liquid paraffin to 100.0g; the paste getting rabbits' artificial ulcers healed more quickly than powder does. Conclusion: The paste is applied more expediently and more effective for oral ulcer.

Objective To study the influence of intraperitoneal instillation of arsenic trioxide (As_2O_3) on metastasis of hepatoma cell line H_22 under CO_2 pneumoperitoneum in mice. Methods The experiment included 40 Kunming mice (cleaning inbred strain). A 1 mm trocar was punctured through the middle abdomen, by which 1?106 tumor cells were administered. Pneumoperitoneum was established with carbon dioxide at the pressure of 8 mm Hg over 30 min. Afterwards, the mice were randomly divided into four groups with 10 mice in each group, receiving intraperitoneal instillation with one of the following: normal saline (1 ml), As_2O_3 (2 mg/kg, 1 ml), As_2O_3 (4 mg/kg, 1 ml), or As_2O_3 (4 mg/kg) with heparin (10 U/ml) (1 ml totally). Levels of CD_44 and vascular endothelial growth factor (VEGF) were measured on the 3rd and 7th day after pneumoperitoneum, respectively. And the survival condition, abdominal circumference, body weight, and diameter of metastatic tumor were compared among the four groups.Results Compared with control group, significantly lower expressions of CD_44 and VEGF were observed the other three groups on the 3rd and 7th day after pneumoperitoneum (P

Objective To investigate the related factors of early liver cancer recurrence associated with elevated fasting glucose levels after radical resection of liver cancer.Methods The retrospective cohort study was adopted.The clinical data of 145 patients with liver cancer who were admitted to the Nanfang Hospital of Southern Medical University from October 2009 to June 2013 werc collected.After radical resection of liver cancer, 111 patients with average level of fasting blood glucose (FBG) ＜ 6.1 mmol/L and 34 patients with level of FBG ≥ 6.1 mmol/L were divided into the normal group and the hyperglycemic group, respectively.The blood glucose levels of patients during the period of hospital stay and follow-up were observed.The status of early recurrence and risk factors affecting recurrence in the 2 groups were analyzed.Follow-up of outpatient examination was applied to patients up to July 1, 2015 with the first recurrence as the end point.Patients had reexaminations once every month within postoperative month 6 and once every 3 months after 6 months.The general information [gender, age, FBG, underlying hepatopathy, preoperative AFP, alanine transaminase (ALT), aspartate aminotransferase (AST), Child-Pugh stage, Barcelona Clinic Liver Cancer (BCLC) stage, history of alcohol drinking], surgical data (surgical method, operation time, number of blood transfusion, volume of intraoperative blood loss), pathological data (histopathological differentiation, number of tumor nodules, diameter of maximal tumor, liver cirrhosis) and follow-up data (postoperative AFP, imaging findings, recurrence time, preventive chemotherapy) were collected.Measurement data with normal distribution were presented as-x ± s and analyzed by the t test.Measurement data with skewed distribution were presented as M (range) and analyzed by the non-parametric test.Count data were analyzed using the chi-square test.With the first recurrence as the end point, the tumor-free survival rate was drawn using the Kaplan-Meier method, and the comparison was analyzed by the logrank test.The risk factors affecting recurrence were analyzed using the Kaplan-Meier method for proportional hazards assumption test firstly, and then eligible factors were done using Log-rank test in the univariate analysis.The multivariate analysis was done using the COX model.Results The postoperative 1-, 2-year overall recurrence rates of liver cancer were 28.3％ (41/145) and 45.5％ (66/145).And 1-, 2-year recurrence rates of liver cancer were 21.6％ (24/111) and 36.9％ (41/111) in the normal group and 50.0％ (17/34) and 73.5％ (25/34) in the hyperglycemic group, respectively, showing significant differences between the 2 groups (x2=10.335, 14.053, P ＜ 0.05).The univariate analysis showed that FBG, Child-Pugh stage, volume of intraoperative blood transfusion and postoperative AFP were risk factors affecting tumor-free survival rate after radical resection of liver cancer (x2 =17.591,6.492, 10.690,12.820, P ＜ 0.05).The tumor-free survival rates at postoperative month 24 in the normal group and hyperglycemic group were 63.1％ and 26.5％ respectively, showing significant difference between the 2 groups (x2=17.591, P ＜ 0.05).The results of multivariate analysis showed that level of FBG ≥6.1 mmol/L, volume of intraoperative blood transfusion ＞ 200 mL and postoperative level of AFP ＞ 8.1 pg/L were independent risk factors affecting tumor-free survival rate after radical resection of liver cancer (RR =2.542, 2.028, 2.724, 95 ％ condifence interval : 1.529-4.225,1.183-3.479,1.635-4.538, P ＜ 0.05).Conclusions Elevated FBG level has a stimulative effect on early recurrence of tumor after radical resection of liver cancer.As a result, monitoring and controlling of blood glucose after operation is helpful in decreasing the early recurrence rate of patients with liver cancer.

Objective To evaluate the effects of ischemic preconditioning(IP) on liver function,complications and hospital stays after hepatectomy under hepatic vascular exclusion by a meta-analysis.Methods Randomized controlled trials(RCTs) were identified from PUBMED,EMBASE,the Cochrane Library,VIP,CNKI and Wanfang Data according to the inclusion and exclusion criteria.Literature screening,data extraction and quality assessment were made and the meta-analysis was processed by RevMan 4.2.2.Results Eight RCTs involving a total of 511 patients were included.The methodological quality was evaluated and all the trials were in graded B.The meta-analysis revealed that the postoperative ALT peak level(weighted mean difference=-176.37;95%CI:-320.67~-30.06;P=0.02)and postoperative complications incidence(odd ratio=0.64;95%CI: 0.41~0.98;P=0.04)were lower in IP group compared with control group,but there were no significant differences in blood loss,operating time,hepatic vascular exclusion time,postoperative AST and total bilirubin peak level,and hospital stays in both groups.Conclusions IP reduces the postoperative ALT peak level and complications incidence after hepatectomy under hepatic vascular exclusion,but there is no sufficient evidence to support that the IP can protect the liver from ischemia/reperfusion injury.

Objective:To determin the effect of PLGA microspheres loading with PTH(1 34)[PTH(1 34)/PLGA]on the differentiation of MC3T3E1 cells.Methods:MC3T3E1 cells were divided into control group,continuous or intermittent PTH(1 34)adminstration groups,PLGA microsphere group and PTH(1 34)/PLGA group.Osteogenesis differentiation was observed by alkaline phosphatase activity(ALP),alizarin red staining and RTPCR.Results:The PTH(1 34)/PLGA with 1 0 -9 mol/L final release concentration enhanced ALP activity and mineralization,increased the mRNA expression of RUNX2,ALP and VEGF.Conclusion:Controlledrelease of PTH(1 34)from PLGA microspheres can promote the osteogenesis differentiation of MC3T3E1 cells.

Objective To observe whether rabbit blood leptin can leak into the brain after craniocerebral trauma (CCT),and to dynamically detect serum levels of leptin,growth hormone (GH),and insulinlike growth factor-1 (IGF-1),and leptin level in cerebrospinal fluid (CSF) after CCT.Methods The FITC labeled leptin was injected into blood vessels of 15 adult male rabbits after anesthesia.Then 9 rabbits underwent unilateral fluid percussive impact,while 6 rabbits underwent sham operation.Thirty minutes postoperatively,brain tissue was taken to make frozen sections which were used to observe fluorescence labeled leptin range.Thirty three adult male rabbits were randomly divided into serum group,serum-control group,CSF group and CSF-control group.Rabbits in serum group and CSF group received fluid percussive impact,while rabbits in serum-control group and CSF-control group were drilled a 7 mm window in skull.Rabbits in serum group and serum-control group were phlebotomized 2 ml at 1 d,3 d,7 d and 14 d after operation,and rabbits in CSF group and CSF-control group were extracted CSF 0.5 ml at the same time points.Then serum levels of leptin,GH,and IGF-1,and leptin level in CSF were tested by ELISA.Results The fluorescence imaging could be seen in the injured brain tissue of rabbits with CCT,which was more than those in brain tissue of rabbits receiving sham operation.Serum leptin levels of rabbits in serum group at each time point were higher than those in serum-control group.Serum levels of GH and IGF-1 and leptin level in CSF were higher in rabbits with CCT than those in rabbits without CCT at 1 d,3 d and 7 d after operation.Conclusion The blood leptin can leak into the brain after CCT,which can cause increase of blood GH and IGF-1.And the latter may be the endocrine factors promoting fracture healing after CCT.

Objective To investigate the effect of recombinant plasmid pshRNA-DNMT3b on expression of DNMT3b mRNA and protein and on the proliferation of bladder cancer T24 cells,and research the function of DNMT3b in the process of bladder tumor formation.Methods There were three groups in this study,which are blank controller,HK and pshRNA-DNMT3b(24h,48h,72h),respectively.T24 cells were cultured routinely and transfected by the recombinant plasmids with lipfectamine 2000.The cells were detected by methods of RT-PCR,western blot and MTT.The varying level of DNMT3b mRNA and expression protein,and the conditions of cellular survival rate were observed.Results The recombinant plasmids were successfully transfected into T24 cell lines.The grey valHe of RT-PCR elctrophoretogram was analyzed by the software of Gel-pro analyzer,the rate of blank controller,HK and pshRNA-DNMT3b(24h,48h,72h),was (99.56±1.24)%,(99.12±1.35)%,(75.77±1.42)%,(44.69±1.05)%and(20.52±0.89)%,respectively.The analytical resuit of western blot image was(99.43±1.28)%,(98.90±1.31)%,(67.83±1.02)%,(43.43±1.05)%and(21.92±0.89)%.There was no statistically difference in survival between blank control and HK(P＞0.05).The group of pshRNA-DNMT3b and other two groups had statistical difference only at the 72th hour and the cell inhibitory growth rate only increase 0.45%.Conclusions The recombinant ptasmid pshRNA-DNMT3b can inhibit the expression of mRNA and protein of DNMT3b effectively.However,it has slight function on inhibiting cell proliferation.

Objective To investigate the diagnosis,operation characteristics and clinical effect of anterior Pilon fracture.Methods A retrospective analysis was carried out to analyze 13 patients who had been treated for anterior pilon fracture from September 2012 to March 2014.All had fresh closed fracture.Mean age was 39.8 years (range,18-61 years).Injury resulted from high falls in 11 patients and falls in 2 patients.According to the preoperative imaging manifestations and four column fracture classification,the fracture type was mainly anterior column fracture.All underwent open reduction and internal fixation with buttress plates,and allograft bone was performed in 8 patients.At the last followup,American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score and visual analogue scale(VAS) were employed for clinical evaluation.Results Mean period of follow-up was 15.7 months (range,12-30 months).Mean AOFAS score was 91.38 points (range,74-100 points).Excellent results were found in 10 patients,good in 2 and fair in 1,with the excellent-good rate of 92％.Mean VAS score was 1.08 points (range,0-3 points).Traumatic arthritis occurred in 1 patient.Skin necrosis occurred in 1 patient,and was cured by dressing change.There were no complications such as infection,refracture or implant failure.Conclusions Mechanism of injury in anterior pilon fracture is vertical violence when the foot in dorsiflexion position.Imaging findings are mainly characterized by the compression in anterior articular surface of the distal tibia,which is often implicated in the anterior medial malleolus but in part is combined with lateral malleolus fracture.The fracture is the result of high energy injury,and can be diagnosed by mechanism of injury and imaging manifestations.Through anterior approach,open reduction and internal fixation with buttress plates plus allogenic bone grafting obtain satisfactory outcomes.