Ningbo City has established a third-party mediation mechanism for medical disputes,attempting to resolve medical disputes by a third party independent of doctors and patients in a fair manner.Such a third party refers to the people's mediation committees for medical disputes and medical disputes compensation centers at various levels.This mechanism features advantages more than one,and has its challenges to address as well.Tasks to perform include study of the existing laws and regulations on compensation,appropriate increase of present compensation level for medical damages,improvement of the medical responsibility insurance mechanism,clarification of the nature of the people's mediation committee,and promotions for an ideal social environment.

Objective To observe the effect of Shenmai injection on congestive heart failure(CHF) and the effect on thyroid hormone as well as medicine security. Methods 52 patieits with CHF were enrolled,Shenmai injection was used with regular western medicine in the treatment. And observed its effect and test serum thyroid hormone: TSH,T3 ,T4 ,rT3. Another 50 CHF patients were enrolled as a control. Results The results of observation were that 25 cases were very effective,23 were effective,4 had no effect and the total effective rate was 92%. The results of control group were that 21 were very effective, 16 were effective, 13 had no effect and the total effective rate was 74%. The differences between the two groups were significant (P > 0.05). By comparing two thyroid hormone T3, T4, rT3, the observation T3 and T4 was obviously higher than the control. rT3 was lower than the control. Conclusion Shenmai injection could efficiently improve the heart function of CHF,cure arrhythmin and correct the illness caused by thyroid hormone.

Marine microorganisms,which live in special biotic environment,have been proven to be potential in producing novel bioactive substances.In past three decades,nearly 300 new compounds have been isolated and determined from marine fungi,and most of them showed antitumor,antibacterial and antiviral activities.This paper reviewed new advances in the studies of antitumor compounds from marine fungi in the recent ten years.

Objective To study the feasibility and safety of hand-assisted laparoscopic hepatectomy combined with splenectomy. Methods Hand-assisted laparoscopic hepatectomy combined with splenectomy was performed in 3 patients. A midline epigastric or right subcostal incision was made for hand-assisted port. The attachments of the spleen were dissected with a harmonic scalpel and the pedicle of the spleen was severed with the Endo-GIA. The transection of the liver was conducted using the harmonic scalpel dissection and nonabsorbable polymer clipping. The cut surface of the liver was closed by interrupted sutures. Results The operation was successfully completed in all the 3 patients. The surgical time was 130 min, 115 min, and 145 min, and the blood loss was 350 ml, 50 ml, and 150 ml, respectively. No serious postoperative complications occurred. The postoperative hospital stay was 9, 7, and 11 days, respectively. Follow-up observations for 6, 23, and 5 months showed no recurrence. Conclusions Hand-assisted laparoscopic hepatectomy combined with splenectomy is feasible and safe in selected patients .

Objective To explore the effects of X-ray irradiation combined with RNAi against signal transducer and activator of transcription 3(STAT3)on the radiosensitivity of human esophageal carcinoma cells.Methods Human esophageal carcinoma cells of the line Eca-109 were euhured.Three pairs of DNA template aiming at the base sequences of the coding regions 2037-2055,1243-1261,and 455-473 of the STAT3 mRNA were synthesized(siRNAI,siRNA2,and siRNA3),and a negative sequence was synthesized to be used as control.STAT3-siRNA positive recombinant plasmids(pRNAT-U6.1-siRNAI,pRNAT-U6.1-siRNA2, and pRNAT-U6.1-siRNA3), and a STAT3-siRNA negative recombinant plasmid (pRNAT-U6.1-negative)were thus constructed and then transfected into the cultured Eca-109 cells,which were divided into transfection reagent control group,pRNAT-U6.1-siRNAl-3 transfection groups,and pRNAT-U6.1-negative centrel group.The positive eell clones were screened.RT-PCR and Westem blotting were used to detect the STAT3 mRNA and protein expression.The transfected Eca-109 cells were exposed to 0,2,4,6,and 8 Gy of X-rays,respectively,and the survival fraction of the cells was analyzed by clone formation assay.Flow cytometry was applied to analyze the cycle arrest and cell apoptosis 4 Gy post-irradiation.Results Agarose gel electrophoresis confirmed the successful construction of the plasmid pRNAT-U6.1-siRNA.RT-PCR and Western blotting demonstrated that the mRNA and protein expression levels of STAT3 transfected with sTAT3-siRNA3 were both significanfly lower than those of the control groups.At 2-8 Gy, the survival fractions of the siRNA3 group were aU significantly lowered than those of the control group(t＝-0.228--0.051,P<0.05).Flow cytometry showed that the percentage of the cell cycle G0/G1 phase and the apoptosis rate of the siRNA3 group were both significantly higher than those of the control groups at 4 Gy post-irradiation(t＝-13.137-16.350,P<0.01).Conclusions X-ray irradiation combined with RNAi against sTAT3 could inhibit the proliferation of the human esophageal carcinoma cells,induce cell cycle arrest and apoptosis,improve the radiosensitivity in Eta-109 cells.

Objective: To study the cell proliferation, cell cycle and apoptosis of esophageal carcinoma Eca-109 cells treated with RNA interference technique to silence signal transducers and activators of transcription 3 (STAT3) gene. Methods: Three pairs of DNA template coding siRNA specific for human STAT3 gene mRNA were designed and synthesized. The annealed oligonucleotide fragments were subcloned into pRNAT-U6.1/neo plasmid to construct STAT3-siRNA expression vector which was then transfected into Eca-109 cells. The expression of STAT3 mRNA and protein in cancer cells was detected by RT-PCR and Western blot, respectively. The cell proliferation, cell cycle distribution and apoptosis were examined by MTT and flow cytometry. Results: STAT3-siRNA expression vector was successfully constructed and identified by sequencing. The results of RT-PCR and Western blot demonstrated that STAT3 expression in Eca-109 cells transfected with STAT3-siRNA expression vector was significantly higher than that in the control group (P＜ 0.01). MTT showed that after transfection of the siRNA vector into Eca-109 cells, cell proliferation was obviously reduced and the cell growth inhibition ratio in the siRNA3 group was 35.68%, significantly higher than that in the control group (P＜0.01). Flow cytometry results suggested that cell cycle arrest and more apoptosis were observed in the siRNA3 group. Cell cycle was arrested at G_0/G_1 phase, and the rate of apoptosis was 13.26%, much higher than that in the control group (P＜0.01). Conclusion: Silencing STAT3 gene by RNA interference technique can effectively inhibit STAT3 expression, suppress the proliferation of Eca-109 cells, induce cell cycle arrest at G_0/G_1 phase, and promote apoptosis.

Objective To study the feasibility and safety of laparoscopically assisted hepatectomy without choledochotomy and T-tube drainage for the treatment of hepatolithiasis.Methods The study included 11 patients with hepatolithiasis in the left intrahepatic duct.Of the 11 patients,8 patients were complicated with choledocholith and 5 patients with cholecystolithiasis.After laparoscopically assisted left hepatectomy,extrahepatic bile duct stone removal and right hepatic duct exploration were carried out under video-assisted choledochoscopy through the left hepatic duct,without choledochotomy and T-tube drainage.Results The operation was successfully accomplished in all the 11 patients.Liver procedures included laparoscopically assisted left lateral lobectomy in 5 patients and left hemihepatectomy in 6 patients.The mean operation time was 128 min(range,110~150 min),and the mean blood loss was 95 ml(range,50~150 ml).No serious postoperative complications occurred.The mean postoperative hospital stay was 7 d(range,5~10 d).The 11 patients were followed for a mean of 7.6 months(range,2~16 months).The curative effects were classified as excellent in 10 patients and good in 1.No residual or recurrent stones were noted.Conclusions Laparoscopically asisted hepatectomy without T-tube drainage for the treatment of hepatolithiasis is feasible and safe for selected patients.This procedure offers advantages of simplicity of performance,short operation time,and fewer complications,being a worthwhile minimally invasive alternative.

Objective To evaluate the treatment effect of PFNA clinical analysis in patients with intertro-chanteric fracture application.Methods 40 cases of intertrochanteric fractures PFNA internal fixation treatment were selected,the operation time,intraoperative blood loss and fractures healing time,degree of hip joint function recovery after operation and the postoperative complications were observed.Results Operating time was 60 -120minutes,with an average of (90.0 ±12.5)minutes.Intraoperative blood loss volume was 200 -600mL,and the average volume was 380.8 plus or minus 58 ml.Fracture clinical healing time was 8 to 15 weeks,with an average of (10.5 ±2.5)weeks. According to Harris hip joint function score,the overall good rate was 85.5%.There were no postoperative complica-tions occurred.Conclusion PFNA applies to all types of intertrochanteric fractures,especially for the old type osteo-porosis bone fracture,which with simple operation,small trauma,fixed firmly,fracture healing fast and less complica-tions.It is worthy of clinical use.

Objective To discuss the relationship between IL-13R?2 and the tumorigenesis and progression of gliomas. Methods Expression level of IL-13R?2 mRNA was studied by Reverse Transcription-Polymerase Chain Reaction(RT-PCR) in 20 cases of glioma and 5 cases of normal brain tissue. Results There was no expression of IL-13R?2 mRNA in all cases of normal brain tissue, wherea 13 of 20 gliomas expressed IL-13R?2.There were specially significant difference between them(P0.05) between low grade gliomas and high grade gliomas, there was greatly significant difference(P

Gene transfection is an important method for studying gene function. The origination and development of gene transfection are reviewed in this article. Six methods of gene transfection are introduced, among which, special attention are given to two new ones: particle bombardment and photochemistry transfection technology. Besides, the advantages and disadvantages of these methods are compared in order that more suitable methods can be chosen in researches. The application of the technology in gene research is discussed in the end of this article.