Objective To investigate the possible role of intercellular adhesion molecule-1 (ICAM-1) in the lung injury induced by mechanical ventilationMethods Twenty-four normal healthy small pigs, ventilated with continuous different tidal volume, were randomly divided into control group, low tidal volume group (group A), middle tidal volume group (group B) and high tidal volume group (group C)The expression of ICAM-1 protein on pulmonary vascular endothelium cells, tumor necrosis factror-? (TNF-?) levels and myloperoxidase (MPO) activities in serum and lung were observed with immunohistochemisty, enzyme linked immunosorbent assay and MPO measurement 1d,3d and 7d following ventilation respectivelyResults The levels of TNF-? and MPO in serum and lung and the number of ICAM-1 protein expression were higher in group A, B and C than those in control group (P

To observe different expression patterns of β-catenin and its clinical significance in colorectal cancer (CRC).Methods A total of 181 cases of CRC tissues and 30 cases of normal colorectal tissue were investigated by immunohistochemistry for the expression of β-catenin.Results The expression rate of β-catenin was 56.9％ (103/181) in CRC,and higher than that in normal colorectal tissue (P ＜ 0.05).The overexpression of nuclear β-catenin was significantly correlated with histological differentiation,lymph node metastasis and Dukes' stage in CRC (P ＜ 0.05),and no relationship with other pathological parameters,such as age,gender and the depth of infiltration.The incomplete membranous expression of β-catenin was significantly correlated with histological differentiation,the depth of infiltration,lymph node metastasis and Dukes' stage in CRC (P ＜ 0.05).The high expression of nuclear β-catenin related to histological differentiation and Dukes' stage in CRC (P ＜ 0.05).In the follow-up data of 82 cases of CRC,the expression of nuclear β-catenin was associated with poor prognosis,and the 5-year survival rate was significantly lower than that of self-control groups (P ＜ 0.05).Conclusion β-catenin plays important roles in colorectal carcinogenesis.Abnormal expression of β-catenin was related to the aggressive progression of CRC and may be helpful for evaluating the prognosis of patients with CRC.β-catenin is expected to become a new target for diagnosis and treatment of CRC in future.

Objective:To observe the correlation among cardiac function ,inflammation factor and plasma testoster‐one level in aged male patients with chronic heart failure (CHF) .Methods :A total of 91 male CHF inpatients were selected from our hospital ,including 31 cases with NYHA cardiac function class Ⅱ ,30 cases with class Ⅲ and 30 ca‐ses with class Ⅳ .Another 40 corresponding male patients without CHF were regarded as non‐CHF control group . Plasma levels of testosterone ,interleukin (IL)‐6 ,tumor necrosis factor (TNF)–α and brain natriuretic peptide (BNP) and cardiac function were compared between two groups .Results:Compared with non‐CHF control group , there were significant reductions in plasma testosterone level , P<0. 05 or 0. 01 ,and they more reduced along with NYHA cardiac function class rose in all CHF subgroups ,P<0.05 or <0.01 .Correlation analysis indicated that tes‐tosterone level was inversely correlated with IL‐6 and TNF‐α levels (r= -0.244 , -0.322 , P<0.05 both) ,and positively correlated with LVEF (r=0.322 ,P=0.01) .Conclusion:In patients with chronic heart failure ,the poo‐rer cardiac function is ,the lower plasma testosterone level is .Testosterone level measurement contributes to judging disease degree and prognosis of patients with chronic heart failure .

It is to difficult to diagnose and treat hepatobiliary surgical diseases since its diverse clinical manifestations,which increases the difficulty of clinical internship.Taking clinical cases as teaching material,case-based learning was combined with teaching theme and was conducted by means of discussion and question and answer between teachers and students.Students can know about concepts or theories related to teaching theme.Case-based learning in internship can consolidate basic knowledge of hepatobiliary surgery,cultivate clinical scientific thinking and is helpful in analyzing and resolving problems of hepatobiliary surgical diseases.

Objective To investigate the characteristics of attentional control between Wenchuan earthquake anxious and normal children. Methods Using Screening Child Anxiety Related Emotional Disorders (SCARED), 18 earthquake anxious children were chosen as participants and 18 normal children were chosen as control group. They were asked to perform a visual search task. Results ( 1 ) The judgment accuracy of earthquake anxious children was lower than normal children's significantly ( ( 0.95 ± 0.01 ), ( 0. 98 ± 0. 01 ), P ＜0.01 ). ( 2 ) The reaction time of earthquake anxious children was significantly longer than normal children' s ((1664.5 ± 78.5 ) ms, ( 1110.7 ± 78.5 ) ms, P ＜ 0. 01 ). ( 3 ) There was significantly faster performance in the valid condition than in the neutral( ( 1304.7 ± 61.3 ) ms, ( 1382. 3 ± 47.4 ) ms, P ＜ 0. 05 ) and invalid condition ( ((1304.7 ± 61.3 )ms, (1475.8 ± 71.5 )ms; P ＜ 0. 05 ), as well as faster performance in the neutral than in the invalid condition ((1382.3 ± 47.4) ms, ( 1475.8 ± 71.5 ) ms, P ＜ 0.05 ) in all children. Conclusion The performance of earthquake anxious children on top-down attentional control task is less than normal children. It indicates that anxious emotion which is brought by traumatic incidents like earthquake influents earthquake anxious children' s cognitive processing ability.

Endovascular therapy has become a research focus for the treatment of acute ischemic stroke,mainly including intra-arterial thrombolysis,combined intravenous and intra-arterial thrombolysis,mechanical recanalization,angioplasty and stenting,etc.This article reviews the evidence of evidence-based medicine of endovascular therapy in patients with acute ischemic stroke.

Objective To assess the value of arterial spin labeling(ASL) MRI in the staging of early renal allograft function. Methods Sixty two renal allograft recipients (2 to 4 weeks after kidney transplantation) and 20 age match volunteers were included in this study. All subjects underwent conventional MRI and ASL MRI which was performed in the oblique-sagittal plane. Recipients were divided into two groups according to the estimated glomerular filtration rate (eGFR), recipients with good allograft function (eGFR≥60 ml · min-1 · 1.73 m-2,n=37) and recipients with impaired allograft function (eGFR<60 ml · min - 1 · 1.73 m - 2,n=25). Renal blood flow (RBF) was measured and an intra-class correlation coefficient (ICC) was calculated to confirm the reproducibility of the measured results from two doctors. One-way analysis of variance (ANOVA) and Bonferroni were used to compare the different cortical RBF among three groups. Correlation of RBF with eGFR was evaluated using Pearson correlation coefficients. The receiver operating characteristic (ROC) curve was performed to assess the diagnostic efficacy of using cortical RBF to discriminate allografts with impaired function from good function. Results RBF values showed good reproducibility between doctors with an ICC larger than 0.90 in different group. Mean cortical RBF were (390 ± 61),(290 ± 69),(201 ± 86) ml · 100 g-1 · min-1 for healthy controls, recipients with good and impaired allograft function, respectively(F=37.313,P<0.01). RBF exhibited a significant correlation with renal function as determined by eGFR for recipients (r=0.60,P<0.01). Mean cortical RBF showed a high area under the ROC curve (0.773) to discriminate renal allografts with different function, with a sensitivity of 56.0% (14/25) and a specificity of 89.2% (33/37). Conclusion ASL MRI can assess the early renal allografts perfusion, and provide valuable information in the staging of renal function. It could be a useful method for evaluating renal function noninvasively.

Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.
Humans ; Protein Tyrosine Phosphatase, Non-Receptor Type 1 ; antagonists & inhibitors ; Structure-Activity Relationship ; Sulfathiazoles ; chemistry ; pharmacology

Objective To investigate the immunogenicity and cross protective effects of two novel HCV DNA vaccines in a mice model.Methods Two self-replicating alphavirus vector-based HCV DNA vaccines, pSCK CE1E2Y and pSCK H155, were constructed based on the genes encoding the structural pro-teins (Core, E1 and E2) and structural and NS3 fusion proteins (Core, E1 , E2 and NS3) of a HCV strain isolated from a Chinese patient (genotype 1b, Hebei strain), respectively.Western blot analysis was per-formed to detect the expression of fusion antigens.The BALB/c mice were intradermally immunized with the recombinant DNA vaccines by using electroporation.The immune responses induced in mice and the cross protective effects of the recombinant DNA vaccines were evaluated.Results The DNA vaccines effectively expressed the target antigens in vitro.The antigen-specific antibody responses and specific T cell immune re-sponses were induced in mice by the immunization of replicative DNA vaccines.However, no effective cross protection was provided by either of the DNA vaccines in the surrogate challenge model based on a recombi-nant heterologous HCV (JFH1, 2a) vaccinia virus strain.Conclusion Although no effective cross protec-tion was observed, both of the two replicative DNA vaccines could induce strong humoral and cellular im-mune responses against multi-target antigens of HCV strains.This study has paved the way for further inves-tigation on the development of novel HCV vaccines.

ObjectiveA comparative proteomic method was used to analyse serum proteins between pancreatic cancer patients and control group,and to find a new protential specific marker.MethodsComparative analysis on the pancreatic peripheral blood protein profiling from 40 pancreatic cancer patients,10 chronic pancreatitis patients,10 benign tumor patients and 40 cancer-free controls was carried out by 2D differential gel electrophoresis,and differentially expressed proteins were identified by matrix-assisted laser desorption/ionization time of flight mass spectrometry.ResultsTwo differentially expressed proteins:transthyretin and apolipoprotein E were identified.Those proteins were highly expressed in pancreatic carcinoma group compared with normal control group,chronic pancreatitis group and benign tumor group.Conclusion2D differential gel electrophoresis and matrix-assisted laser desorption/ionization time of flight mass spectrometry technology in screening specific serum biomarkers of pancreatic cancer has a well repeatability and stability.The identified protein transthyretin in this study may be as specific serum biomarkers of pancreatic carcinoma.