1.Research of Correlation between Deep Vein Thrombosis and Ankle Fractures
Tianjin Medical Journal 2014;(8):846-848
Deep vein thrombosis (DVT) is a serious complication of fractures. The incidence of ankle fracture which occurs most frequently intra-articular is 200/100 000, about 3.9%of all fractures. Domestic and foreign reports of ankle fractures and DVT were allocated and analyzed to review their correlation. Furthermore, different methods of rou-tined thromboprophylaxis was discussed. DVT incident after ankle fractures and the necessity of routined thromboprophy-laxis were reviewed. DVT incidence after ankle fractures was low and routine thromboprophylaxis was not necessary to all ankle fracture patients except the ones who had risk factors of thrombosis which could induce DVT.
5.Induction specific anti-tumoral immunity against pancreatic cancer by dendritic cells modified by HSP70 peptide complex from pancreatic cancer cells
Jian DONG ; Zhenlin WU ; Wei JIA ; Xiaojuan ZHANG ; Mingqing CHEN
Chinese Journal of Immunology 1985;0(01):-
Objective:To investigate the strategies and methods of pancreatic cancer immunotherapy adopt cytotoxic T lymphocytes activated by dendritic cells(DCs),which modified by heat shock protein 70 peptide complex(HSP70-PC).Methods:HSP70 peptide complex from lumps of tumor-bearing mouse innoculated with pancreas cancer cell(MPC83)were purified by ConA-Sepharose and ADP-Agarose affinity chromatography.Dendritic cells derived from normal murine bone marrow were induced by GM-CSF and IL-4.MTT method was applied to analyses the proliferation activities of DCs.To achieve the specific T lymphocyte cells,DCs modified with HSP70 peptide complex were coculture with murine spleen lymphocytes for 48 hours.Then these activated lymphocytes were cocultured with MPC83 at ratio of effect-target 10∶1 and 20∶1 in vitro and the killing activities were detected by MTT method.Results:High purify HSP70-PC was obtained;104 DCs need 50~100ng of HSP70-PC to modify,100?g of HSP70-PC peptide complex can be extracted from per 1g lump;T cells stimulated by HSP70-PC modify DCs showed more specific cytotoxic activity to MPC83 than lymphocytes activated by DCs without HSP70-PC in vitro.Conclusion:We can extract high purity HSP70-PC for clinical individual immunotherapy from pancreatic cancer lump by using hypobaric affinity chromatography;DCs vaccine modified with HSP70-PC has significant kill effect against pancreatic cancer cell in vitro.
6.Inhibitory effects of PTEN gene transfection combined with L-OHP on proliferation of human cholangiocarcinoma cells
Ping CUI ; Tide DUAN ; Jian DONG ; Wei JIA ; Shupeng DAI
Chinese Journal of Cancer Biotherapy 1995;0(03):-
Objective: To investigate the inhibitory effects of PTEN gene transfection combined with L-OHP on human cholangiocarcinoma cell line, QBC939, providing a new method for gene therapy of human biliary duct carcinoma. Methods: A eukaryotic expression vector containing PTEN gene was transfected into human QBC939 cells under mediation of lipofectamine and positive cell clones were selected and amplified. Expression of PTEN gene was detected by immunohistochemistry. MTT test was used to determine the in vitro activity of cells, electron microscope was applied to observe cell ultrastructure, and flow cytometry was used for determining the cell cycle and apoptosis. In vitro test was used to study the invasive ability of cells before and after treatment. Results: After transfected with PTEN gene, QBC939 cells had a higher expression of PTEN gene (P
7.Application of 3D printing technology in treatment of displaced acetabular fractures complicated with posterior pelvic ring injury
Wei ZHANG ; Qinglei WANG ; Tieliang ZHANG ; Jian JIA
Chinese Journal of Orthopaedic Trauma 2017;19(8):696-702
Objective To evaluate the application of 3D printing technology in the treatment of displaced acetabular fractures ( DAF ) complicated with unstable injury to the posterior pelvic ring. Meth-ods A retrospective study was conducted of all the 19 DAF patients complicated with unstable posterior pelvic ring who had been treated from August 2009 to June 2015 in our hospital. They were 12 men and 7 women, aged from 24 to 62 years ( average, 39. 8 years ) . Twelve DAFs were complicated with ipsilateral unstable injury to the posterior pelvic ring, 5 with contralateral unstable injury to the posterior pelvic ring, and 2 with bilateral unstable injury to the posterior pelvic ring. Preoperatively, 3D digital models of the pelvis were reconstructed for the 19 patients using their CT scanning data. Their pelvic models were printed using 3 D printing technology for visual evaluation of their fractures and design of individualized surgical proce-dures. Results With the help of their 3D printing models, the 19 patients obtained successful operations within a mean time of 3. 2 hours. Their intraoperative blood loss averaged 658. 5 mL. They were followed up for an average of 10. 7 months ( range, from 8 to 24 months ) . According to Matta′s criteria for pelvic reduc-tion, 14 cases achieved anatomical reduction, 2 satisfactory reduction and 3 unsatisfactory reduction. Ac-cording to Mears's criteria for reduction of the posterior pelvic ring, 13 cases achieved anatomical reduction, 4 satisfactory reduction and 2 unsatisfactory reduction. The 19 acetabular fractures healed after 9 to 18 weeks ( average, 14. 5 weeks ) . The pelvic fractures healed after 8 to 17 weeks ( average, 13. 5 weeks ) . According to the Merle d'Aubigne-Postel criteria at the last follow-ups, the hip functions were excellent in 7, good in 9, fair in one, and poor in 2 cases. According to the Majeed's functional evaluation, the pelvic functions were excellent in 10 cases, good in 7, fair in one, and poor in one. Complications were incision infection in one, heterotopic ossi-fication in 2, avascular necrosis of the femoral head in one and traumatic arthritis in one. Conclusion In thetreatment of DAF complicated with unstable injury to the posterior pelvic ring, application of 3D printing technology can provide direct visualization of the pelvic and acetabular fractures which facilitate preoperative evaluation and design of individualized surgical protocols, leading to fine outcomes.
8.Effect of Diabetic Status on the Preventive Efficiency of Methylcobal on Peripheral Neuropathy in Rats
Jian-bo LI ; Jia-wei CHEN ; Xiao-lu LI
Chinese Journal of Rehabilitation Theory and Practice 2006;12(10):861-862
ObjectiveTo investigate the effect of varied hyperglycemia and durations on preventing peripheral neuropathy (PN) with methylcobal in diabetic rats.Methods80 Sprague Dawley rats were selected and randomly chosen 16 as normal control (NC) group, others 64 animals as diabetic model induced by alloxan. The model rats were evenly divided into relatively good control (GC) group and relatively poor control (PC) group based on levels of hyperglycemia regulated with exogenous insulin. 16 rats of each GC/PC group were intramuscularly injected with methylcobal (500 μg/kg). The sensory nerve conduction velocity (SNCV), motor nerve conduction velocity (MNCV) and evoked potential amplitute (EPA) of sciatic nerve of rats were detected by evoked electromyogram respectively at 2nd, 8th and 12th week after onset of diabetes. Fructosamine in serum was also detected.ResultsThe rats injected with methylcobal had a significantly delayed reduction of SNCV, MNCV and EP in GC group (fructosamine,1.0 mmol/L) than that in PC group (fructosamine, 1.2 mmol/L) ( P<0.05~0.01). Up to 8th week after onset of diabetes, there was no obvious difference in physioelectroparameters between the GC group and NC group. At 12th week after onset of diabetes, physioelectroparameters in the PC group fell to the level of non-methylcobal injected group. No effect of methylcobal on blood glucose revealed in any groups ( P>0.05).ConclusionMethylcobal has a beneficial effect on delaying the onset of diabetic PN, and is of high efficacy with a good control of diabetic state, especially at early stage.
9.Application of noninvasive cerebral electrical impedance measurement on brain edema in patients with intracerebral hemorrhage
Li-Xu LIU ; Wei-Wei DONG ; Jian-Ping JIA ; Jian WANG ; Li-Hua CHEN ;
Chinese Journal of Neurology 1999;0(06):-
0.05).②The total positive ratio of PI in ICH was 73.1%.PI was the most sensitive when the position located in the basal ganglia (83.3%) or the volumes of lesions were more than 20 ml (80.0%—88.9%),but was low when the volumes less than 20 ml or the position near the midline.③In the patients with [CH,PI of the hematoma side initially was lower and finally higher than contralateral one.The average transitional time was (19.67? 11.52) h.The ipsilateral PI after the transitional time was much higher than that before the transitional time in the same patients(P
10.A multicenter double-blind randomized trial of adefovir dipivoxil with hepatitis B e antigen-positive chronic hepatitis B
Jia WEI ; Li-Fa ZHANG ; Jia SHANG ; Dan LI ; Zhi-Jian XIAO ; Lang LU ;
Chinese Journal of Infectious Diseases 2001;0(05):-
Objective To evaluate the safety and efficacy of adefovir dipivoxil made in China for treating hepatitis B e antigen(HBeAg)-positive chronic hepatitis B patients.Methods This was a multicenter,double-blinded,randomized controlled trial.Two hundred and thirty-eight patients with HBeAg-positive chronic hepatitis B were assigned to receive either adefovir dipivoxil(10 mg/d,120 patients)or placebo(118 patients)for 12 weeks in 5 medical centers in China.Then,both groups of patients entered 36 weeks open-labeled adefovir dipivoxil treatment phase(10 mg/d),The rates of serum HBV DNA clearances,alanine aminotransferase levels(ALT)normalization,HBeAg loss and anti-HBe seroconversion were evaluated respectively during and post the 48-week treatment.Results After 12 weeks of treatment,the rates of serum HBV DNA clearance(real-time fluorescent quanti- tative polymerase chain reaction,the detection limit was 1?10~4 copy per milliliter),ALT normaliza- tion,HBeAg loss and anti-HBe seroconversion of adefovir dipivoxil group were all significantly higher than those of placebo group(50.0% vs 5.1%,35.0% vs 8.5%,12.5% vs 2.5% and 5.8% vs 0, respectively,x~2=59.89,24.52,P0.05).The safety profile of adefovir dipivoxil was similar to that of placebo. Conclusions The safety profile and efficacy of domestic adefovir dipivoxil for treating HBeAg-positive chronic hepatitis B patients are similar to its counterparts that have been licensed aboard.