Objective To evaluate the hepatic pathological damage after orthotopic liver transplantation (OLT) in rats with integrated backscatter (IBS). Methods Thirty-two SD rats and 40 Wistar rats were included, and stable OLT models were established except 8 Wistar rats as blank group. The rat models were randomly divided into 4 groups (each n=8):normal group (given no treatment), CsA-treated group (30 mg/[kg·d]), SIN-treated group (40 mg/[kg·d]), SIN and CsA-treated group (SIN 40 mg/[kg·d]+CsA 15 mg/[kg·d]). Hepatic IBS (peak to peak intensity:PPI; average image intensity:AII; standard deviation of image intensity:SDI) was measured on 4th and 10th day after OLT. The rats were sacrificed and a part of liver was cut off for pathological examination. Result Four days later, AII of control and SIN groups were higher than those in other groups (P<0.05), and of CsA-treated and SIN+CsA-treated groups were higher than that of blank group (P＜0.05), while no difference of PPI and SDI was detected between each two groups. Ten days later, AII in CsA-treated, SIN+CsA-treated and SIN-treated groups were lower than that of control group (P＜0.05), no difference of PPI and SDI was detected between each two groups. IBS was positively correlated with liver pathological damage (r=0.814, P＜0.01). Conclusion Detecting hepatic IBS contributes to the diagnosis of the level of liver damage after OLT.

Objective To evaluate the correlation between the level of CD4+CD25+regulatory T cells in periphend blood and disease severity in patients with sepsis.Methods Thirty-six septic patients and 5healthy controls were enrolled.Septic patients were divided into sepsis group(n=10),severe sepsis group (n=15)and septic shock group(n=11).The lymphocyte was seperated from peripheral blood and marked by PE-CD4 and FTTC-CD25 monoclonal antibody,the level of CD4+CD25+ regulatory T cells was detected by flow cytometry,and the clinical data of APACHE Ⅱ scores of septic patients was considered in 24 hours.The correlation between level of CD4+CD25+ regulatory T cells in peripheral blood and APACHE Ⅱ scores in septic patients was analyzed.Results Compared with the healthy controls [(5.48±0.98)%],the level of CD4+ CD25+ regulatory T cells in sepsis group(10.31±2.32)%,severe sepsis group(14.27 43.33)%,septic shock group(15.32±3.98)% had a significant increase(P＜0.05 or＜0.01).The log value of regulatory T cells in each group correlated positively with the APACHE Ⅱ scores(r=0.829,P=0.032;r=0.868,P=0.021;r=0.913,P=0.009),and the total coefficient of correlation was 0.903(P=0.013).Conclusion The level of CD4+CD25+ regulatory T cells in peripheral blood in septic patients has an abnormal increase,and their levels are related with the severity of disease.

Objective To investigate the effect of low molecular weight heparin (LMWH) on the expression of endothelial protein C receptor (EPCR) and protease activated receptor 1 (PAR1) in abdominal vascular endothelial cells (VECs) of septic rats. Methods VECs were cultured by tissue-sticking method, and the purity was determined with flow cytometry (FCM). VECs were randomly divided into three groups: control group, septic group (LPS 1 μg/ml) and LMWH group (LPS 1 μg/ml+LMWH 5 μg/ml). The VECs were collected at 1st, 3rd, 5th days after stimulated. The expression of EPCR and PAR1 were assessed by FCM. Results The expression of EPCR and PAR1 of septic group decreased significantly compared with control group at each time point (P＜0.05 or P＜0.01), and the expression decreased most obviously on day 5 (26.53±7.21 vs 39.26±2.62,q＝6.45,P＜0.01;53.21±15.10 vs 86.54±11.34,q＝6.94,P＜0.01). In LMWH group, the levels of EPCR and PAR1 expression were higher than setpic group at each time point (P＜0.05). Compared to control group, the expression of EPCR had a significantly decrease on day 1 (40.86±1.63 vs 45.41±2.82,q＝3.51,P＜0.05), which had no significantly different on day 3 and 5 (41.20±3.32 vs 42.83±2.66,P＞0.05;39.23±3.33 vs 39.26±2.62,P＞0.05), and the expression of PAR1 were not significantly decrease compared with control group at each time point (P＞0.05). Conclusions LMWH could improve the inhibition status and the expression of EPCR and PAR1 on VECs in septic rats.

Objective To investigate the relations of the expression of bcl-xL in superficial bladder tumor and prognosis. Method The expression of bcl-xL was detected by envision system in 80 cases of superficial bladder tumor. Results In patients with high expression of bcl-xL, the recurrence rate was higher than that of normal expression [71.4%(30/42) vs 50.0%(19/38) ,P < 0.05], and the recurrence of time as early as normal expression [(16.0 ± 1.2) months vs (36.0 ± 4.5) months](P < 0.05). Conclusion The expression of bcl-xL could effectively predict the prognosis of patients with bladder tumor, those who with high expression of-bcl-xL have bad prognosis.

OBJECTIVETo evaluate the significance of the serum cystatin C (Cys-C) in assessing renal dysfunction in preeclamptic women.

METHODSNinety-six women with normal pregnancies and 48 with severe preeclampsia were examined for 24-hour creatinine clearance (CrCl), serum creatinine (Scr), Cys-C, uric acid (UA) and beta microglobulin (MG) concentrations during the second and third trimesters and postpartum in severe preeclamptic patients. These indexes were analyzed to estimate the glomerular filtration rate.

RESULTSThe concentrations of Scr, UA and MG were significantly higher in the third trimester than in the second trimester in women with normal pregnancies, where serum Cys-C levels showed no significant variations. Severe preeclamptic patients exhibited significantly higher serum Cys-C levels in the third than in the second trimester. Correlation analyses demonstrated significant negative correlations between Cys-C and 24-hour CrCl in the second and third trimesters in all the 144 pregnant women and in the postpartum period in severe preeclamptic patients.

CONCLUSIONSerum Cys-C can serve as a good indicator for assessing renal function in severe preeclamptic women from antepartum to postpartum periods.

Case-Control Studies ; Creatinine ; blood ; Cystatin C ; blood ; Female ; Humans ; Kidney ; physiopathology ; Pre-Eclampsia ; blood ; physiopathology ; Pregnancy ; Pregnancy Trimester, Second ; Pregnancy Trimester, Third ; Retrospective Studies ; Uric Acid ; blood ; beta 2-Microglobulin ; blood