To generate recombinant adenovirus expression vector of human Sema4C gene and observe its expression in mouse myoblasts cell line C2C12 for ensuring easy access to investigate the role of Sema4C gene during myogenesis. The recombinant plasmid was packaged and amplified after being transfected in HEK293 cells through Lipofectamine. After infecting C2C12 myoblasts with recombinant adenovirus vector, the adenoviral infection efficiency was determined by confocal microscope which showed that the expression of green fluorescence could be detected at 12h and then reached peak at 24h after recombinant adenovirus infection. The infection efficiency was almost 100% confirmed by FACS examination. Detection of WB indicated that the expression of Sema4C in C2C12 of recombinant adenoviral infection group was significantly higher than that of the control group (P

Carbonic Anhydrase IV ; genetics ; Chloride Channels ; genetics ; Colorectal Neoplasms ; genetics ; Databases, Genetic ; Gene Expression Regulation, Neoplastic ; Genes, Tumor Suppressor ; Humans ; Inhibin-beta Subunits ; genetics

Objective To compare the clinical effects of extracorporeal shock wave treatment (ESWT) on lumbar ramus posterior nervorum spinalium syndrome and to compare the effectiveness of applying it in X-ray orientation with pain-point orientation.MethodsSixty patients with lumbar ramus posterior nervorum spinalium syndrome were randomly divided into an X-ray orientation group and a pain-point orientation group with 30 subjects in each group.The two groups then received ESWT with the X-ray orientation and pain-point orientation,respectively.The ESWT was delivered at the energy of 0.12 to 0.20 mJ/cm2 and the frequency of 60-80 pulses per minutes.A total of 1000-1500 shock wave pulses were delivered every time.Three sessions of ESWT were administered,with a 3-5 days of interval between each session.The results were rated using the 75 scores of the lumbar function quantification index recommended by Greenough.Ratings were done before treatment,and after the first,the second and the third treatment.ResultsThere was no significant difference between the groups' average index scores before treatment.There were however significant differences from the baseline scores after the first,the second and the third treatments.There was no significant difference in average lumbar function quantification scores between the groups after the first treatment,but the inter-group differences were statistically significant after the second and the third treatments.After three treatments the cure rate in the X-ray orientation group was 76.7％ and overall effectiveness was 93.3％.Both were significantly higher than in the pain-point orientation group (33.3％ and 76.7％ respectively).ConclusionsThe advantages of X-ray orientation when administering ESWT for lumbar rami posterior nervorum spinalium syndrome are more exact positioning and more effective treatment.The effect was obviously better than with pain-point orientation.

Objective To clarify the effective location of propofol in central nervous system (CNS). Methods Forty-two Wistar rats were ramdomized into control group,50 mg/kg propofol,100 mg/kg propofol,150 mg/kg propofol,tail shearing,propofol followed by tail shearing (n=7 in each group). The NOS expressions in the CNS were recorded by NADPH-d histochemistry after anesthesia by intraperitoneal injection of propofol. Results Rather widely stained NOS positive neurons were observed in the control group. In propofol groups,the NOS expressions were decreased significantly as compared with the control group,mainly located in ACB,LS,Pe,VLG,Den,SO,SCh,AVPO,Sol,SuM,BL,PV,LHb and Icj,showing a negative dose-effect relation with propofol. Conclusion Propofol has the determined sites of action in CNS and the decrease of NO synthesis by the inhibition of NOS may play a role in propofol-induced general anesthesia.

Objective To clarify the effective location of propofol in central nervous system (CNS) by detection of the c-jun expression after propofol-induced anesthesia in rats. Methods Wistar rats were randomly divided into 6 groups: normal control (C), low-dose propofol group (50 mg/kg, P 1), middle-dose propofol group (100 mg/kg, P 2), high-dose propofol group (150 mg/kg, P 3), stimulation with tail broken group (S 1), and propofol + stimulation with tail broken group (S 2). The expressions of nucleoprotein JUN in the CNS were detected by immunohistochemisty. Results Rather weakly stained nucleoprotein JUN positive neurons were observed in the supraoptic nucleus, lateral septal nucleus, and lateral habenular nucleus in the control group. In groups P 1, P 2, and P 3, the expressions of nucleoprotein JUN were increased significantly as compared with those in the control group. The expressions were mainly located in the accumbent nucleus, lateral septal nucleus, periventricular hypothalamic nucleus, ventral lateral geniculalaten nucleus, dorsal lateral geniculate nucleus, supraoptic nucleus, suprachiasmatic nucleus, anteroventral preoptic nucleus, nucleus of the solitary tract, supramammillary nucleus, basolateral amygdaloid nucleus, paraventricular thalamic nucleus, lateral habenula nucleus, and islands of Calleja. The expressed positive neuron number was positively correlated with the doses of propofol. Conclusion Propofol anesthesia has the determined sites of action in rat CNS.

Objective To discuss the short-term clinical effect including functional change of lipiodol- arsenic trioxide emulsion on the primary hepatic carcinoma.Methods Fifty-two patients undergone arterial chemoemblization were selected and then randomly divided into two groups:treatment group(n=27)and control group(n=25).Patients in treatment group were treated with lipiodol-arsenic trioxide,while those in control group treated with mitomycin,epirubicin,cisplatin or lipiodol.Clinical symptoms and six liver function parameters were observed and analized.Results The clinical symptoms of patients in treatment group improved much better than those in control group,and the liver function impairment of patients in treatment group also decreased more than those in control group.Conclusions Lipiodol-arsenic trioxide is an effective and safe intervention-therapeutic embolization material for primary hepatic carcinoma.

The influence of separating effect of different chromatographic conditions of mouse gut flora by high performance ion exchange chromatography analysis was studied. The optimum chromatographic conditions for separating gut bacteria were determined. The sample was applied to the chromatography column packed with Toyopearl SuperQ-650c anion resin, equilibrated with 0.02mol/L piperazin-hydrochloric acid buffer (pH 8.0), and elution salt 1mol/L NaCl, eluted with the gradient of 0-50% NaCl/ 80 min, then 50%~75% NaCl/ 25 min at the flow rate 1ml/min, and injecting volume was 1ml.Under these conditions, intestinal flora were separated into several fractions. The establishment of HPLC analysis method will lay a foundation of further research on the components of mouse gut flora and their dynamic changes.

Objective To study the stability of micro-implant orthodontic anchorage(MA)with different pitch in the case of immediate loading.Method Employing 3D finite element analysis method,the stress and dis-placement distribution on the bone interface of MIA with different pitch(0.3 mm、0.5 mm、0.7 mm and 1.0 mm,respectively),which was 1.47 N loaded vertically in the major axis direction,were analyzed.Result The pitch affected the stress distribution significantly,because the maximum stress increased with the pitch decreasing and the impact of pitch on stress distribution on neck and central locations of MIA were different;to decrease the pitch could reduce the max displacement of the jaw,but the impact of pitch on displacement distribution of MIA was not significant.Condusions In the case of immediate loading.MIA with pitch 0.5 mm-0.7 mm is suggested to be selected as orthodontic anchorage in the clinic.

Objective To study the stability of micro-implant orthodontic anchorage(MA)with different pitch in the case of immediate loading.Method Employing 3D finite element analysis method,the stress and dis-placement distribution on the bone interface of MIA with different pitch(0.3 mm、0.5 mm、0.7 mm and 1.0 mm,respectively),which was 1.47 N loaded vertically in the major axis direction,were analyzed.Result The pitch affected the stress distribution significantly,because the maximum stress increased with the pitch decreasing and the impact of pitch on stress distribution on neck and central locations of MIA were different;to decrease the pitch could reduce the max displacement of the jaw,but the impact of pitch on displacement distribution of MIA was not significant.Condusions In the case of immediate loading.MIA with pitch 0.5 mm-0.7 mm is suggested to be selected as orthodontic anchorage in the clinic.

Objective To investigate the clinical significance of the 3D-CTA (three-dimensional computed tomography angiography)assisted design of finger reconstruction the second toe.Methods Between June 2010 and January 2013,five patients with finger defect received 3D-CTA assisted finger reconstruction surgeries using the second toe.Preoperative ipsilateral foot and hand 3D-CTAs were conducted and the 3D digital models were analyzed.The accurate positions and adjacent relations of vessels in both donor and recipient site were precisely marked and then the calibers of the vessels were measured.Four cases received thumb reconstructions and 1 case received little finger reconstruction.All of these surgeries were second-stage.According to Gu Yudong's classification of finger defect:second degree 2 cases,third degree 2 cases,five degree 1 case(little finger).Results With the help of 3D-CTA,five patients in this group had no vascular crisis,and all fingers survived successfully.With 4-12 months' follow-up,the algesthesia and thalposis of the reconstructed fingers gained good recoveries.The two-point discrimination was 5-10 mm.Tthe range of flexion of interphalangeal joint was 10 °-30 °.The range of flexion of the metacarpophalangeal joints was 35 °-80 °.And all patients restored walking and bearing functions with 3 months after surgeries.Conclusion The 3D-CTA reconstruction based digital model of ipsilateral foot and hand can objectively reflect the real situation of the vessels in both donor sites and recipient sites (exist of variations,routes and the calibers of the vessels),thus improve the success rate of surgery.