Objective To observe the expression of CD_ 105 in breast cancer, and explore the correlation between CD_ 105 and growth, invasion and metabasis of breast cancer. Methods 50 cases of breast infiltrating duct cancer, 20 cases of breast duct cancer and 20 cases of breast benign hyperplasia were enrolled in this study. The microvascular density(MVD) was marked with CD_ 105 and F-8RAg using immunohistochemical S-P method. Results The expression level of CD_ 105 in breast infiltrating duct cancer was significantly higher than that in breast duct cancer and benign hyperplasisa(P

Objective To investigate the MRI features of pilomyxoid astrocytoma ( PMA ) in children.Methods MRI features of seven children with pathologically proven PMA in 2011-2013 were retrospectively analyzed.The ages of the patients ranged from 10 months to 32 months at initial diagnosis.Results All tumors were well-circumscribed masses.Six tumors were located in the hypothalamic-chiasmatic-third ventricular region , two tumor involved the bilateral temporal lobe , and one tumor was associated with NF-I.One occurred in the basal ganglia region.Four tumors were solid masses , whereas the other three showed cystic components.Six tumors were hypointense and one was isointense on T 1-weighted image.Five tumors were hyperintense and three were isointense on T 2-weighted image.Four tumors were hypointense , one was iso-hypointense and one was isointense on DWI.After contrast administration , four tumors enhanced homogenously and three tumors enhanced heterogeneously , with intratumoral irregular hypointense region in two tumors and rim enhancement in one tumor.Cerebrospinal fluid ( CSF ) dissemination, hydrocephalus and peritumor edema were observed in 2, 4 and 1 of cases, respectively.Proton magnetic resonance spectrum of two PMA showed elevated Cho /Cr ratios and decreased NAA/Cr ratios.Conclusions The imaging features of pilomyxoid astrocytoma include common origination from the midline of the neuroaxis in younger children about 2-3 years old.The CSF dissemination is common.The presence of hemorrhage and peritumor edema is not common.

Objective To investigate the efficacy of tertiary liver transplantation.Methods The clinical data of 4 patients with hepatobiliary disease who were admitted to the General Hospital of Chinese People's Armed Police Forces from April 2002 to December 2012 were retrospectively analyzed.All the patients received orthotopic liver transplantation,and received tacrolimus + mycophenolate mofetil (MMF) + hormone after operation.All the patients were followed up till May 2014,and their prognosis was learned.The measurement data were analyzed using the t test.Results Three patients with benign hepatic disease received tertiary liver transplantation due to biliary complications and chronic rejection,and 1 patient with hepatic cancer received tertiary liver transplantation because of hepatic cancer recurrence.The average interval between the primary and secondary liver transplantation was 16.0 months,which was shorter than 22.5 months of the interval between the secondary and tertiary liver transplantation.The mean operation time in the secondary liver transplantation was (11.4 ± 1.0)hours,which was significantly shorter than (14.1 ± 2.2) hours in the tertiary liver transplantation (t =3.644,P ＜ 0.05).The median volumes of blood loss in the secondary and tertiary liver transplantation were 1 300 mL and 1 800 mL,and the median volumes of blood transfusion were 1 400 mL and 3 100 mL.The hepatic function of the 4 patients recovered smoothly at the early time after liver transplantation.Two patients (3 cases) were complicated with infection postoperatively (1 patient was infected by pseudomonas aeruginosa within 30 days after liver transplantation,and was cured by active antimicrobial treatment),and they were cured after anti-infectional treatment.One patient died of hepatic failure at the 80th month after the primary liver transplantation,1 died of hepatic cancer recurrence complicated by pulmonary,bone and retroperitoneal lymph node metastasis at the 107th month after the primary liver transplantation,and the other 2 patients survived for 104 months and 26 months after the primary liver transplantation,respectively.Conclusion Tertiary liver transplantation is effective for the treatment of biliary complications and chronic rejection after liver transplantation,and it can extend the life span of patients with hepatic cancer recurrence if there are insufficient donor resources.

Objective To evaluate the role of cytokine levels for prediction of HBV recurrence after liver transplanta- tion.Methods 34 cases of liver transplantation from June 2002 to December 2003 in our hospital were observed.The measurements of cytokine in serum by ELISA method were taken on the 7 days before operation and recurrence after oper- ation and the change rules were studied.Results The serum TNF-?,IL-10和 INF-? levels gradually increased in HBV non-recurrence group,but which in recurrence group had no markedly change and always skept on normal levels after operation.In addition,the serum TNF-?和 IL-10 levels after operation were significantly higher in nonrecur- rence group than in recurrence group.The serum IL-2 levels in recurrence group always kept on higher levels without marked changes after operation.Conclusion TNF-? and IL-10 are better laboratory index in the prediction of HBV recurrence after liver transplantation and which are noninvaded and cheap.

Objective To investigate the value of susceptibility weighted imaging in grading brain tumors in children.Methods Twenty-eight children with surgically or pathologically proved primary brain tumor were recruited during 2010 to 201 1.All patients were scanned with conventional MRI and SWI sequences on a 1.5T or 3.0T scanner before surgery.The cases of tumors were divid-ed into low grade (9 males and 2 females)and high grade groups (10 males and 7 females),according to the WHO classification of the tumors of the central nervous system in 2007.The low-intense signals within the abnormalities on SWI images were analyzed and classified into the different shapes,including punctuate,tubular,cluster-like,linear signal,irregular patchy signal.As for the num-ber of low-intense signals,we applied the four-score system.The irregular patchy signals were considered to be artifacts of SWI, namely hemorrhage,after exclusion of the isolated veins and calcification.The differences of rate of hemorrhage and scores between the two groups in SWI were analyzed statistically.Results The low-signal scores were significantly different between two groups with higher scores in high grade tumors than in low grade tumors(P <0.001).The rate of intratumor hemorrhage was also signifi-cantly different between two groups.The rate is higher in high-grade group than low-grade group,given the fact that the hemor-rhage was showed in 2 low grade tumors (18.18%),while in 1 1 high grade tumors (76.37%)(P =0.01 5 9<0.001).Conclusion Different grades of pediatric brain tumors manifest significant difference on susceptibility weighted imaging(SWI).It may be helpful in the preoperative classification of brain tumors by analyzing the relevant signals on SWI.

Objective To evaluate the outcomes of liver transplant recipients who received liver grafts from HBsAg positive donors in patients with hepatocellular carcinoma beyond UCSF (University of California,San Francisco) Criteria.Method The medical records of patients who underwent HBsAg-positive donor liver transplantation for hepatocellular carcinoma beyond UCSF Criteria from October 2008 to December 2012 at our hospital were analyzed retrospectively,including the existence status of HBV,graft function,tumor recurrence,and the survival after transplantation.Result A total of 20 patients were enrolled in the study.One patient lost follow-up while the remaining 19 patients had complete follow-up data.All the patients were followed up until June 2013,with a median follow-up duration of 12 months (range 2-57 months).One patient died from postoperative abdominal bleeding and multiple organ failure at post-transplantative day 21.Five patients survived up to now,including 4 cases with disease-free survival,who has been surviving for 57,35,26 and 12 months respectively.The remaining all 14 patients died from tumor recurrence at different time points after transplantation.Entecavir was used alone in 19 patients and Entecavir combined with Adefovir dipivoxilalone were used as anti-HBV therapy in the recipients.At posttransplant day 45,all the recipients were positive for serum HBsAg and negative for serum HBVDNA,and the liver enzymatic criteria,coagulation criteria and the serum bilirubin restored to normal levels or within twice the upper limit of normal levels.Throughout the follow-up period,recipients were all positive for serum HBsAg,but there was no recurrence of hepatitis B.The 1-,2-,3-and 4-year cumulative survival rate was 48.0％,35.0％,18.7％ and 18.7％ respectively.Conclusion The HBsAg positive liver may be used as a donor in liver transplantation and the graft probably works well after the operation.Liver transplantation may prolong the survival and improve the quality of life,even achieve long-term disease-free survival in patients with hepatocellular carcinoma beyond UCSF Criteria.The use of nucleotide analogue only,instead of combination with hepatitis B immune globulin,can also bring HBV well under control in liver transplant recipients with HBsAg positive donors.

Objective To investigate the effect of fatty liver graft on early poor prognosis in postoperative liver transplant adult patients.Methods The clinical data of 125 adult patients undergoing liver transplantation (LT) from fatty liver graft from January 2008 to October 2012 were retrospectively analyzed.Patients were divided into poor-prognosis group and non-poor-prognosis group.18 clinical factors were compared between these two groups by single factor and multiple factor Logistic regression analysis.Results Degree of steatosis (x2 =10.088,P =0.004),recipients' age (t =-3.917,P =0.002),pre-LTserum creatinine values (Z =-2.623,P =0.009),liver warm ischemia time (Z =-2.305,P =0.021),cold ischemia time (Z =-3.394,P =0.001) were identified to be statistically significant by the single factor analysis (P ＜ 0.05);By multivariate stepwise Logistic regression analysis on the above parameters,cold ischemia time (x2 =10.141,P =0.001,OR =1.003) and degree of steatosis (x2 =8.360,P =0.004,OR =4.619) were found as the independent risk factors,into the regression equation:Y =0.003 × cold ischemia time + 1.530 × degree of steatosis-4.243.Conclusions Donor liver cold ischemia time,degree of steatosis are independent risk factors for poor prognosis in early stage after liver transplantation.

Objective To assess the clinical application of Cylex ImmuKnow assay in patients with renal dysfunction after liver transplantation for individualized immunosuppressive therapy.Method Twenty adult patients undergoing liver transplant between January 2009 and December 2011 received regular ImmuKnow assay monitoring combined with determination of serum tacrolimus trough concentration to guide immunosuppressive regimens,all of whom showed sustained renal dysfunction 6 months after transplant with normal and stable liver function.Clinical data were collected to observe the changes of renal function in those patients after treatment.Results The recipients were followedup for 15-54 months,received ImmuKnow assay 61 times and the results fluctuated 33-943 μg/L [median 282 μg/L,interquartile range (IQR) 267 μg/L].After ImmuKnow monitoring,serum creatinine level in patients was decreased significantly from median 151.8 μmol/L with IQR 44.9 μmol/L to median 114.9 μmol/L with IQR 35.3 μmol/L (Z =-3.845,P =0.000),and estimated glomerular filtration rate (eGFR) was increased significantly from median 0.746 mL/s with IQR 0.025 mL/s to median 1.005 mL/s with IQR 0.454 mL/s (Z =-3.771,P =0.000).ImmuKnow results showed a linear correlation with the white blood cell count in patients (Spearman correlation coefficient r =0.429,P =0.001),but no linear correlation with the patients' age,primary disease before transplantation,postoperative time,serum tacrolimus trough concentration,lymphocyte count,CD3+ T lymphocyte count,CD4+ T lymphocyte count or CD4+/CD8+ T lymphocyte ratio (P＞ 0.05).Conclusion Cylex IrmmuKnow assay can be applied in patients with renal dysfunction after liver transplantation for individualized immunosuppressive therapy monitoring,which is of certain clinical value.

Objective To study the efficacy of peg-interferon plus ribavirin treatment for hepatitis C recurrence after liver transplantation.Methods The clinical data of 16 patients with hepatitis C recurrence after liver transplantation were collected from June 2002 to March 2012 in our hospital.Results There were 1620 patients receiving liver transplantation.66 of these patients received the treatment because of hepatitis C related diseases.16 of the 66 patients received peg-interferon plus ribavirin treatment after liver transplantation.The hepatitis C virus (HCV) RNA concentrations of all the 16 patients were detected.Twelve of the 16 patients were negative for HCV RNA,and the HCV RNA concentration was reduced by more than 2 log after treatment for 12 weeks in 2 cases.The early viral response (EVR) was 87.5％.The HCV RNA of all the 16 patients became negative after treatment for 24 weeks.Conclusion The EVR was high (87.5％) among patients who received peg-interferon plus ribavirin treatment after liver transplantation,and the combination therapy with interferon plus ribavirin was safe and effective for hepatitis C recurrence after liver transplantation.

Objective To explore the diagnostic value of parametric imaging of contrast-enhanced ultrasound(CEUS) on recurrent hepatocellular carcinoma after liver transplantation.Methods CEUS images of 41 recurrent hepatocellular carcinoma after liver transplantation was analyzed by Sonoliver CAP software.The color code image,curve image and quantitative parameter of DVP of each recurrence lesion was recorded,then typed and analyzed statistically.Results The DVP patterns were classified into 3 types,they were washed out types,non-washed out types and negative types.The washed out types,non-washed out types and negative types on color code image and curve image of DVP were 70.73％ (29/41),24.39％ (10/41),4.88％ (2/41) and 63.41％(26/41),34.15％ (14/41) and 2.44％ (1/41) respectively.The maximum intensity,rise time,time to peak of the recurrence lesion and the surrounding liver parenchyma were (149.98± 65.29) ％,(12.32 ± 5.83)s,(13.01 ±6.07)s and (100±0.00)％,(26.10± 10.81)s,(29.69± 11.60)s respectively,and showed statistical differences (P ＜0.05).Conclusions The difference of blood perfusion between the recurrence lesion and the surrounding liver parenchyma can be displayed by DVP's dynamic,direct and quantitative imaging,which can be used to provide valuable information about the detection of intrahepatic lesion of recurrence after liver transplantation.