Objective To study the influence of laparoscopic radiofrequency ablation combined with intravenous chemotherapy on hepatoma cell growth mediated by PTEN and Wnt pathway. Methods 90 cases of hepatocellular carcinoma patients from May 2013 to June 2016 were chosen as study subjects, all patients were divided into observation group (n = 45), control group (n = 45) randomly. Patients in observation group received laparoscopic radiofrequency ablation combined with intravenous chemotherapy, while those in control group received intravenous chemotherapy only. One week after treatment, two groups patients' liver lesion tissue PTEN signaling pathway, Wnt signaling pathway related gene mRNA expression were detected by RT-PCR method; serum contents of tumor markers were tested by Radioimmunoassay. Results One week after treatment, liver lesion tissue PTENmRNA expression was higher in observation group than that in control group, HIF-1, VEGF mRNA expression were lower in observation group than those in control group, the difference was statistically significant (P < 0.05); liver lesion tissue Wnt pathway related genes mRNA expression such as β-catenin, CyclinD1, c-myc, MMP-7 were lower in observation group than those in control group, the difference was statistically significant (P < 0.05); serum contents of tumor markers such as AFP, GGT-Ⅱ, IGF-2, CA19-9 were lower in observation group than those in control group, the difference was statistically significant (P < 0.05). Conclusion Laparoscopic radiofrequency ablation combined with intravenous chemotherapy can inhibit the growth of HCC cells through the PTEN and Wnt pathway, which has positive clinical significance.

Objective To study the prevention of cardiac allograft vasculopathy (CAV) post-transplant through the expression of iNOS mRNA. Methods Rat model of heterotopic heart transplantation (Abdomen) was developed and recipients were injected with Cyclosporin A at abdomen in the meantime of receiving L-arginine (iNOS mRNA group) and inhibitor of iNOS (L-NAME group) according to grouping. Plasma content of NO_3-, the expression of iNOS mRNA in coronary ~artery of transplanted heart and the radio of tunica intima/tunica media thickness (I/M) were assayed after ~operation . Results The plasma content of NO_3-and the expression of iNOS mRNA in coronary ~artery of transplanted heart in iNOS mRNA group were obviously higher than those in control group and L-NAME group during 2 to 4 weeks after operation. The ratio of I/M in iNOS mRNA group was ~lower than that in control group and L-NAME group 4 weeks after operation. Conclusion The ~expression of iNOS can promote the synthesis of NO and prevent CAV development.

Objective To evaluate the effects of intraaortic balloon pump (IABP) support in the emergency interventional procedures on pump failure or cardiogenic shock complicating acute myocardial infarction (AMI). Methods Group A included 21 patients with IABP support during the emergent interventional procedures, and group B included 66 patients without IABP. The two groups were compared for clinical criteria and in-hospital events or complications.Results No significant differences were noted between the two groups witch regard to baseline age, gender, onset of chest pain, timing of intervention, location of AMI, the number of coronary artery diseases, individual infarct-related artery, and TIMI grade before intervention. The degree of pump failure was significantly worse in group A than in group B. In a follow-up period of in-hospital, mortality and revascularization in-hospital were lower in the patients with IABP than in the patients without IABP. Conclusion The combination of early IABP and successful emergency coronary intervention is associated with improved survival in patients with pump failure or cardiogenic shock complicating AMI.

Objective To observe the effect of upper limb rehabilitation robot training on unilateral spatial neglect (USN) in stroke patients.Methods 30 stroke patients with USN were divided into control group (n=15) and observation group (n=15). Both 2 groups receivedroutine rehabilitation and USN comprehensive training after vital signs were stable. The observation group received upper limb rehabilitationrobot training additionally. Fugl-Meyer Assessment (FMA), Modified Barthel Index (MBI) and USN were assessed before and 8 weeksafter treatment. Results The scores of FMA and MBI and USN status were significantly improved (P<0.01), and they were better in the observationgroup than in the control group (P<0.01). Conclusion Upper limb rehabilitation robot training can improve USN patients' upperlimb motor function and activities of daily living, and improve the degree of USN.

Objective To analyze the incidence and risk factors of microalbuminuria in newly diagnosed and hospitalized type 2 diabetes mellitus patients,and to provide the theoretical basis for therapy of diabetes and diabetic chronic complications.Methods The blood glucose,lipid profile,24h-urinaryalbumin,fasting and postprandial serum insulin and peptid C were measured in 286 newly diagnosed and hospitalized type 2 diabetic patients from Mar.2006 to Sep.2009.Microalbuminuria was defined as the 24h-urinary albumin between 30 to 300 mg twice.Insulin resistance index (HOMA-IR) was recorded and all the patients received fundus examination by ophthalmologists after expansion of the pupil to ensure whether there was retinopathy or not.Results (1)The incidence rate of microalbuminuria in this study was 19.58％ (56/286).(2)Normal albuminuria group and MA group combined DR were 19.57％ (45/230) and 33.93 ％ ( 19/56 ) respectively,and the difference was statistically significant( x2 =5.349,P =0.021 ).Compared with control,the FPG,HbA1c and HOMA-IR were significantly higher in microalbuminuria group ( FPG:[ 11.08 ± 1.76 ] mmol/L vs [9.24 ±1.65]mmol/L,t =-6.148,P ＜0.001;HbA1c:[11.54 ± 1.59]％ vs [9.39 ± 1.64]％,t =-7.533,P ＜0.001 ;HOMA-IR:[3.73 ±0.42] vs [3.50 ±0.30],t =-3.774,P ＜0.001 ).(3) Pearson correlation analysis revealed microalbuminuria was positively correlated with FPG( r =0.460),HbA1 c ( r =0.499),HOMA-IR( r =0.308)and combined DR(r =0.405)(P ＜0.01).(4)Stepwise multiple regression analysis revealed that FPG (ββ =- 0.804,P ＜ 0.01 ),HbA1 c (β =- 0.455,P ＜ 0.01 ) and combined DR (β =1.527,P ＜ 0.05 ) were independently risk factors of microalbuminuria.Conclusion The development of microalbuminuria in newly diagnosed and hospitalized type 2 diabetic patients is associated with FPG,HbA1c and HOMA-IR,and will be easier to merge diabetic retinopathy.

Objective To systematically evaluate the efficacy and safety of combined hepatectomy and splenectomy in hepatocellular carcinoma complicated with hepatic cirrhosis and hypersplenism.Methods Medline (1966-August 2009), Embase (1974-August 2009), Cochrane Library, CBMdisc (1978-August 2009), and Wanfang Database were searched without language limitation. All relevant studies were screened and the data were extracted by two independent reviewers, and the methodological qualities of the included studies were evaluated by the Minors scale. The data were analyzed with the RevMan5 software. Results Five non-randomized comparative studies (NRCs) involving 476 patients (232 in HS group, 244 in control group) were enrolled into the analysis. There was no significant difference in the operative mortalities (OR=0. 57, 95%CI 0. 12-2. 66, P=0. 47) and postoperative morbidities (OR= 0. 93, 95 % CI 0.59- 1.46, P = 0.75) between the two groups. Compared with hepatectomy only, CD4+ T cell (WMD=7.90, 95%CI 7.01-8.79, P＜0.01), CD4+ T cell/CD8+ T cell ratio (WMD=0. 75, 95%CI 0. 70-0.80, P＜0.01), white blood cell count (WMD=5.47, 95%CI 5.13-5.82, P＜0.01) and platelet count (WMD=174.89, 95%CI 116.61-233.18,P＜0.01) were significantly higher, but CD8+ T cell (WMD = - 7.66, 95%CI - 8. 53～ - 6. 79,P＜0. 01) was lower compared with combined hepatectomy and splenectomy. There was no significant difference in the 5-year survival rates (OR= 1.37, 95%CI 0.86-2.18, P=0. 18). Conclusion Combined hepatectomy and splenectomy did not increase the operative mortalities and postoperative morbidities in hepatocellular carcinoma complicated with hepatic cirrhosis and hypersplenism. The white blood cell and platelet counts markedly increased after surgery. There was no evidence to show any improvement in the 5-year survival.

Objective To investigate the biological effect of 50 Hz sinusoidal electromagnetic fields at 1 mT on the proliferation of the human osteosarcoma cell line MG-63.Methods Osteosarcrma MG-63 cells were divided into control and experimental groups.The control group was incubated without an electromagnetic field; the experimental group was incubated in a 50 Hz,1.0 mT sinusoidal electromagnetic field.On the 2nd,4th and 6th day,their proliferation was determined using a cell counting kit-8(CCK-8)assay.Variations in the cell cycle were detected with flow cytometry(FCM).Semi-quantitative reverse transcription-polymerase chain reaction(RT-PCR)was used to measure cyclin B1 and cyclin D1 mRNA.Results Compared with the control group,proliferation of the experimental group cells was reduced significantly.The percentage of cells at G0-G1 phase increased,and the mRNA expression of cyclin B1 and cyclin D1 was significantly reduced.Conclusions A 50 Hz sinusoidal electromagnetic field at 1.0 mT can inhibit the proliferation of osteosarcoma cell line MG-63 significantly.

Objective:To define impact of spontaneous TIMI-3 flow before angioplasty on outcomes of percutaneous coronary intervention strategy and the prognosis in patients with acute myocardial infarction (AMI ). Methods: The consecutive 301 patients enrolled in the ongoing register of emergent coronary angioplasty within 12 hours from symptoms who were diagnosed as having ST elevation AMI in our hospital from 2000 to 2006 were analyzed, they were followed up for one year and the clinical characteristics and survival rates were analysed. Results: Among the 301 patients enrolled in the ongoing register of emergent coronary angioplasty, spontaneous reperfusion (TIMI-3 flow) was present in 14.6% at initial angiography. Compared with patients without TIMI-3 flow, those with TIMI-3 flow before coronary intervention were less likely to present in new-onset heart failure(2.3% versus 16%, P=0.016), Patients with initial TIMI-3 flow had significantly lower 30-day mortality (0% versus 9.3%, P=0.035) , and cardiogenic shock (0%versus 8.6%, P=0.044) and had a shorter hospital stay (P=0.008). Cumulative 1-year mortality was 0% in patients with initial TIMI-3 flow, 11.3% with TIMI 0-2 flow (P=0.019). By COX regression analysis, postprocendural TIMI-3 flow was an independent determinant of survival (OR=0.285,P=0.004) , however,TIMI-3 flow before coronary intervention was not found as an independent determinant of survival significantly. The lenitive symptoms and current smoking were the independent determinants of TIMI-3 flow before coronary intervention (P=0.005, P=0.048, respectively).Conclusion: Patients undergoing primary percutaneous transluminal coronary intervention in whom TIMI-3 flow is present before angioplasty may present with greater clinical and angiographic evidence of myocardial salvage, be less likely to develop complications related to left ventricular failure, and improve early and late survival.

BACKGROUND: The source of bone marrow mesenchymal stem cells (BMSCs) is limited, and the cellular morphology,proliferation and multi-directional differentiation capacities can vary during serial passages in BMSCs in vitro.OBJECTIVE: To study the effects of fibroblast growth factor (FGF) on cellular morphology, proliferation and differentiation of serially passaged BMSCs.METHODS: (1) BMSCs were isolated from Sprague-Dawley rats and cultured. These cells were passaged six times in vitro, and the cellular morphology was observed and photographed. (2) BMSCs at passage 6 were seeded into 96-well plates and randomly divided into control group and FGF treatment group. The proliferation of cells in both groups was detected with cell counting kit-8 kit at days 1, 2, 3, 4, 5, 6, 7 after culture. (3) BMSCs at passage 6 were seeded into 6-well plates and randomly divided into control group and FGF treatment group. After 7 days treatment with growth medium or growth medium containing FGF, the cellular morphology was observed and photographed. And then the cells of both groups were treated with osteogenic induction medium, adipogenic induction medium and chondrogenic induction medium for the next 7 days. The osteogenic, adipogenic and chondrogenic related genes (RUNX2, ALP, OCN;PPARγ2, AP2, ADIPOQ; SOX9, collagen II, aggrecan) were detected with real-time PCR. The protein expressions of RUNX2, PPARγ2, SOX9 were detected with western blot assay. (4) BMSCs at passage 6 were seeded into 6-well plates and randomly divided into control group and FGF treatment group. After 7 days treatment with growth medium or growth medium containing FGF, the cells were cultured with osteogenic induction medium, adipogenic induction medium and chondrogenic induction medium for the next 14 days. Then, alizarin red S staining, oil red O staining and alcian blue staining were performed.RESULTS AND CONCLUSION: (1) After in vitro passage for six times, the cellular morphology changed obviously, and FGF treatment recovered the characteristics of primary cells. (2) Compared with the control group, the cell proliferation in the FGF treatment group was significantly increased (P < 0.05). (3) Compared with the control group, the expression of osteogenic, adipogenic and chondrogenic related genes (RUNX2, ALP, OCN; PPARγ2, AP2, ADIPOQ; SOX9, collagen II, aggrecan) was increased significantly in the FGF treatment group (P < 0.05). The protein expressions of RUNX2,PPARγ2, SOX9 were also higher in the FGF treatment group than the control group (P < 0.05). (4) Compared with the control group, the number of extracellular calcium nodules, the number of intracellular lipid droplets, and the expression of acid acidic mucopolysaccharide were significantly increased after FGF pretreatment. To conclude, FGF pretreatment can preserve the stemness of BMSCs serially passaged in vitro.