Coronary atherosclerosis , the principal cause of death in atherosclerosis , and the cardiovascular protective proper-ties of RES, a polyphenol compounds , have been explained by a substantial body of evidence in cell , animal and clinical research . Which through it′s biological pleiotropy , inhibit oxidative stress , reduce cytokines , then activate the inhibition of platelets aggregation , anti-proliferation, anti-oxidant, anti-inflammatory and vasodilatation .However, the discrepancy between laboratory and clinical call for further investigation .The review will summarize the novel mechanisms of RES on CAS .

Objective To investigate the long-term efficacy of autologous stem cell transplantation for systemic lupus erythematosus (SLE). Methods Long-term follow up of 48 SLE patients with autologous stem cell transplantation were studied. All patients were followed up for 10 years. Among the patients, 24 cases were treated with purified CD34+ cells transplantation and 24 cases were treated with non-CD34+ cell transplantation. Comparison between groups was performed by x2 test. Results Among 5 dead patients, 4 died of transplantation related complications including 3 cases treated with CD34+ transplantion. The survival rate of those patients with more than 10 years duration of lupus was 90%(43/48). Among 43 patients, 7 had disease flare, 6 were treated with non-CD34+ cell transplantation. Eight patients went to college, 26 returned to normal life and 4 of them had children. Conclusion The long-term effect of SLE treated with autologous hematopoietic stem cell transplantation and anti-thymocyte globulin (ATG) is good. The recurrence of CD34+ transplant patients is lower than those treated with non-CD34+ transplantation. The quality of life in SLE patients treated with transplantation is better than those treated with conventional therapy.

Objective To evaluate contrast-enhanced ultrasound (CEUS) for the diagnosis and follow-up of hepatocellular carcinoma ( HCC) patients after percutaneous radiofrequence ablation ( RFA). Methods The data of 46 HCC cases were reviewed in our study. Results of contrast enhanced computed tomography (CT) , ultrasound contrast agent sonography and grey ultrasound were compared with each other pre- and after percutaneous radiofrequence ablation. Results Contrast agent ultrasound imaging had the same value with CT in preoperative diagnosis of HCC, with postive likelihood ratio of 1.26 and 1.31, respectively,sensitivity of 97% and 91% and specificity of 23% and 31% respectively. For grey ultrasound the positive likelihood ratio was 0.99, sensitivity and specificity was 76% and 23% respectively. The sensitivity and specificity of contrast-enhanced ultrasound after percutaneous radiofrequence ablation was 60% and 90% respectively, and the postive likelihood ratio and negative likelihood ratio was 6. 18 and 0. 44 respectively. The difference was significant while compared with CT (P = 0. 012). All cases were followed-up from 1 to 9 months, and all were alive with recurrence found by contrast-enhanced ultrasound in 3 cases. Conclusions Contrast agent ultrasound imaging is sensitive and effective in the diagnosis of HCC and follow-up after percutaneous radiofrequence ablation.

Objective To investigate the existence of epithelial-mesenchymal transition(EMT)and its relation to the expression of HBx protein in hepatocellular carcinoma(HCC).Methods The expression of HBx protein,E-cadherin,β-catenin,N-cadherin and fibronectin were detected by immumnohistochemistry technique in 76 cases of HCC.Results Among 76 HCC samples,the loss of expressions of E-cadherin and β-catenin were 34%(26/76)and 20%(15/76),respectively.The positive expressions of HBx protein,N-cadherin and frbronectin were observed in 68%(52/76),55%(42/76),46%(35/76)of HCC samples,respectively.The loss of expression of E-cadherin significantly correlated with the positive expression of N-cadherin and HBx protein (P＜0.01).The positive expression of N-cadherin and fibronectin significantly correlated with the loss of expression of β-catenin and the positive expression of HBx protein(P＜0.05).Conclusions EMT exists in hepatocellular carcinoma,and the expression of HBx is significantly associated with EMT.

Objective To investigate the effects of cold preservation and reperfusion injury on the regen-eration of donor liver and to study the mechanisms. Methods Male SD rats were divided in to sham group (6 rats), UW 1 h group (48 rats) and UW 12 h group (48 rats). Liver tissue specimens were collected at different time points after orthotopic liver transplantation or sham operation. The morphology of liver tissue was observed via light microscope and transmission electron microscope. Proliferation of hepatocytes and sinusoidal endothelial cells (SECs) were assessed by a double immunostaining technique using antibodies against rat endothelial cell antigen-1 and bromodeoxyuridine (BrdU). Expression of vascular endothelial growth factor (VEGF) and its receptors, fins-like tyrosine kinase-1 (flt-1) and fetal liver kinase-1 (flk-1) was evaluated by immunohistochemistry. The mRNA expression of flt-1 was detected by a RT-PCR method. Mean comparison in groups was conducted by one-way ANOVA or t test. Results BrdU labeling indexes of hepatocytes and SECs in UW 12 h group was significantly higher than those in UW 1 h group (F = 61.45,41.4, P < 0.05). The proliferation of hepatocytes peaked at 48 h after operation in both UW 1 h group and UW 12 h group. However, the proliferation of SECs was fallen behind compared to hepatocytes, with a peak appeared at 72 h in UW 1 h group and at 96 h in UW 12 h group, respec-tively. The expression of VEGF was up-regulated in both UW 1 h group and UW 12 h group compared to sham group. Furthermore, expression of flt-1 and flk-1 was found to be mainly limited in SECs, with a peak in expres-sion occurring between 72 h and 96 h, coinciding with the peak in SECs proliferation in UW 1 h group. Conversely, flt-1 was found to be reduced significantly on mRNA level at any time throughout the experiment in UW 12 h group compared to sham group (F = 141.67, P < 0.05). Conclusion Reduced expression of flt-1 results in a retarded regeneration of SECs, and then the recovery of rat donor liver function is delayed after cold-preserved transplantation.

ObjectiveTo investigate the correlation between the chromosomal abnormalities and prognosis of the myelodysplastic syndrome(MDS)patients, and analyze the effects of treatment. Methods Karyotype analysis of 122 patients according to the international human cytogenetics(ISCN) criteria.Treatment of RA and RAS were mainly dependent on agents to induce differentiation of hematopoietic cells and drugs based.RAEB,RAEB-t,CMML treatment were dependent on low-dose chemotherapy and low-dose combination chemotherapy regimens.The treatments of 64 MDS patients with abnormal karyotype were analyzed and compared with control group, and 58 normal karyotype MDS patients were hospitalized in the same period.ResultsAfter treatments,17 cases gained complete remission among 64 patients with abnormal karyotype MDS patients.The CR rate was 26.6 ％.While in control group,30 gained CR in 58 MDS patients with normal karyotype. The CR rate was 51.7 ％. Comparing with the CR patients of normal karyotype, the number of patients with abnormal karyotype of CR was significantly lower (x 2 =8.1 3,P ＜ 0.05).Conclusion Karyotype analysis shows important significance in the diagnosis and prognosis of MDS.Karyotype transformation demonstrates differently in the risk of leukemia progress.

Aberrant activation of the phosphatidylinositol 3-kinase(PI3K)-protein kinase B(PKB,Akt)-mammalian target of rapamycin(mTOR) pathway is commonly observed in human cancer and is critical for cell survival, proliferation and differentiation.A variety of small molecule inhibitors targeting PI3K-Akt-mTOR pathway are under clinical studies.This review will summarize the recent studies in terms of the PI3K-Akt-mTOR signaling pathway and cancer,research progress of the antitumor activity possessed by PI3K-Akt-mTOR inhibitors,as well as the recent research in the related field conducted by our group.

Objective To evaluate the influence of hepatic ischemia-repeffusion injury (HIRI) induced by Pringle maneuver on the prognosis of hepatoceUular carcinoma (HCC) patients after hepatectomy. Methods The chnical data of 315 HCC patients who had been admitted to Southwest Hospital from January 2004 to December 2008 were retrospectively analyzed. The 194 patients who received Pringle maneuver during hepatectomy were in the HIRI group. The control group was composed of 121 patients without portal triad clamping. The pre- and peri-operative characteristics and the prognosis of the patients were analyzed by t test, chi-square test, Kaplan-Meier survival curve, Log-rank test and Cox regression model analysis. Results Patients in the HIRI group were significantly younger than those in control group (median age, 49 vs 59) (X2 =4. 12, P < 0.05). There were 108 patients (55.7%) with large HCC (diameter > 5 cm) in the HIRI group, while the number of patients with large HCC in the control group was 83 (68.6%), with statistical difference between the 2 groups (X2=4. 12, P <0.05). The serum levels of aspartate aminotransferase on postoperative day 3 and day 7 were 255 U/L and 112 U/L, which were significantly higher than 128 U/L and 35 U/L in the control group (X2 =4.57, 5.89, P <0.05). The level of total bilirubin on postoperative day 3 was 56 U/L in the HIRI group, which was significantly higher than 39 U/L in the control group (X2=4.79, P <0.05). The disease-free survival rate and cumulative survival rate in the HIRI group were significantly lower than those in the control group (X2 = 5.93, 8. 32, P < 0. 05). Perioperative blood loss, diameter of tumor, portal triad clamping and portal vein invasion were independent factors influencing the diseasefree survival rate. Conclusions HIRI induced by Pringle maneuver significantly decreases the disease-free survival rate and cumulative survival rate of HCC patients after hepatectomy.

Objective To establish a stable orthotopic liver transplantation(OLT)model with hepatic artery reconstruction in mice.Methods Of the 66 OLT mice,33 recipient mice underwent conventional 'two cuff' technique without hepatic artery reconstruction(control group),33 with hepatic artery reconstruction using 'stent' technology(experimental group).Results The 2 week posttransplant survival rate was 84.85%(28/33)and 81.82%(27/33)in the arterialized and nonarterialized groups respectively.Serum γ-GT and ALP level of arterialized recipient were much lower than those of nonarterialized animals.The pathology of the donor liver showed that rearterialization helps to relieve bile duct injury of liver allograft.Conclusions The hepatic artery supply plays a central role in preventing bile duct injury after transplantation.This mouse OLT model may meet the need for the study of problems associated with liver transplantation.

Objective To investigate the effects of hypercholesteremia on the motor function of sphincter of Oddi (SO). Methods Thirty-two rabbits were divided into control group and experimental groups. In the control group, the rabbits were fed with normal diet. In the experimental groups, the rabbits were fed with normal diet + cholesterol for 4, 6 and 10 weeks. Myoelectric activity and pressures of SO were detected. All data were analyzed by t test. Results The serum total cholesterol and low density lipoprotein cholesterol were at a high level in rabbits which were fed with normal diet + cholesterol for 10 weeks (t=9.63, 11.38, P <0.05); basal pressure, pike pressure and amplitude of SO were significantly elevated (t=5.23, 6.34, 3.24, P < 0.05) ; the spike potential of SO changed to myoelectronic activity, with prolonged time period of myoelectronic activity, while the discharge rate was decreased (t=13.68, 10.18, P < 0.05). Conclusion Hypercholesteremia may change the motor function of SO and enhance its peristalsis to speed up the excretion of bile.