Objective To investigate gender differences in mortality after percutaneous coronary intervention(PCI) in contemporary "real world" practice and determine whether female gender is an independent risk factor for PCI mortality.Methods A total of 2 493 patients including 1 860 men(male group) and 633 women(female group) who underwent PCI during July 1st,2004 to September 30st,2005 in Beijing Anzhen Hospital were retrospectively investigated and followed up.The risk factors before PCI and the mortality rates post PCI were compared.Results Women undergoing PCI were older and had more comorbidities than men.However,men were more likely to have depressed ejection fraction,prior myocardial infarction,and prior coronary revascularization.Women demonstrated a ten-fold higher in-hospital mortality rates compared with men(1.1% vs 0.1%,P

ObjectiveTo research the endothelial dysfunction and early changes in arterial elasticity in patients with hyperlipidemia and effects of atorvastatin on these changes.Methods40 patients with hyperlipidemia but without any treatment in our hospital were selected as a study group,and 30 healthy people were selected as control group.Use the Flow mediated dilation,FMD detection which bases on the echo-trackingtechnology,eTRACYING to evaluate the right brachial atherosclerosis parameters and vascular diastolic parameters,including the pressure strain elastic modulus(Ep) ;stiffness index (β) ;compliance (AC) ;FMDs and FMDd.The study group take atorvastatin 20mg per day,then retested above parameters and TC,LDL-C after 12 weeks and analyzed all parameters.ResultsThe values of β and Ep in study group are significantly higher than the control group (all P ＜ 0.001 ),but AC;FMDs and FMDd are significantly lower than the control group( all P ＜ 0.001 ).The results of the study group after the treatment of atorvastatin are as follwing:TC,LDL-C,β and Ep are lower than before,AC,FMDs and FMDd are higher than before;and the differences are of significance in statistics ( all P ＜ 0.001 ).ConclusionHyperlipidemic patients had shown the vascular endothelial injury and vascular early hardening before the abnormal changes in intimal,but the atorvastatin intervention could reverse these changes.

ObjectiveTo explore the role of risk management in reducing the nursing risk of junior nurses in operation room. Method The risk management was implemented among junior nurses in operation room including establishing training groups for risk management,establishing instructor system,classifying nursing risk events and formulating operation room nursing risk monitoring. Result After risk management,the rate of risk events in the junior nurses was lowered as compared to pre-enforcement of the risk management(P<0.001).Conclusions The risk management can improve the risk awareness of junior nurses in operation room and reduce the incidence of nursing risk events.

Objective To investigate the effects of pyrroloquinoline quinone(PQQ) on the hippocampal neurons of aged rats induced by D-galactose(D-gal).Methods D-gal was used to induce the model of aging rat,PQQ was administered into rat lateral intracerebroventricle.After 50 days the metamorphosis of hippocampal neurons was observed by H-E and Nissl's staining.The apoptosis rate of hippocampus was tested by flow cytometry.The contents of free radical and C-FOS protern were measured.Results Compared with the control group,the size of the neurosoma was slightly changed,the optical density of Nissl's was decreased,the content of free radical and the apoptosis rate increased markedly in D-gal group.After PQQ injection with D-gal,the size of neurosoma and the optical density of Nissl's were markedly increased,the content of free radical and the apoptosis rate of hippocampus did not change.PQQ improved the expression of C-FOS protern.Conclusion PQQ can slow down the aging progress of hippocamal neurons induced by D-gal.

Objective To investigate the expression of inducible co-stimulator (ICOS) on T lymphocytes in peripheral blood from the patients with systemic lupus erythematosus (SLE). Methods Two-color immunofluorescent staining and flow cytometric assay were used to analyze the level of ICOS expression on T lymphocytes in peripheral blood from 33 SLE patients and 16 healthy volunteers. The data of systemic lupus erythematosus diseases activity index (SLEDAI) in SLE patients were also collected. Results The level of ICOS expression on T cells from active SLE group was markedly higher than that in the control group and the inactive SLE group (P 0.05). However, a positive correlation between the expression level of ICOS and the SLEDAI score was found in both active SLE group and inactive SLE group(r = 0.711,P = 0.001?r = 0.561,P = 0.03). Conclusions The expression of ICOS on T cell in peripheral blood from active SLE is increased, which might play a role in the pathogenesis of SLE.

The expression of inducible co-stimulator (ICOS) in peripheral blood T lymphocytes from the patients with systemic lupus erythematosus (SLE) and the role in the pathogenesis of SLE was investigated. By using two-color immunofluorescent staining and flow cytometric assay, the expression levels of ICOS in peripheal blood T lymphocytes from 33 patients with SLE and 16 healthy volunteers were detected. SLE diseases activity index (SLEDAI) of the patients with SLE was used to evaluate the disease activity. The correlation between the ICOS expression and SLEDAI was analyzed among the groups. The results showed that the expression levels of ICOS in T lymphocytes in active SLE group was markedly higher than those in the control and inactive SLE groups (both P< 0.01). There was no significant difference in the expression levels of ICOS between the inactive SLE and the control groups (P>0.05). In active SLE and inactive SLE groups, positive linear correlation was found between the levels of the ICOS expression in T lymphocytes and SLEDAI (r=0. 711, P=0.001; r=0.561, P=0.03). It was suggested that the expression of ICOS in peripheral blood T lymphocytes from the patients with active SLE was up-regulated and and ICOS might be related to the pathogenesis of SLE.
Antigens, Differentiation, T-Lymphocyte/*biosynthesis ; Antigens, Differentiation, T-Lymphocyte/genetics ; Lupus Erythematosus, Systemic/blood ; Lupus Erythematosus, Systemic/etiology ; Lupus Erythematosus, Systemic/*immunology ; T-Lymphocytes/*immunology

Objective To study the mechanism of liver fibrosis in rats caused by chronic exposure through drinking water containing sodium arsenite,to identify the differential proteins via proteomics technique.Methods Totally 40 healthy 8-week-old male Sprague Dawley (SD) rats of specific pathogen free (SPF) grade were randomly divided into 4 groups,which were control group (deionized water),0.68,1.36 and 2.73 mg/kg sodium arsenite (iAs3+) treated groups,respectively.The rats were fed with iAs-treated drinking water freely for 24 consecutive weeks.Twenty-four hour urine sample,blood and liver samples were collected.Hepatic fibrosis indices,specifically,type Ⅲ precollagen (PC Ⅲ),type Ⅳ collagen (Ⅳ-C),hyaluronic acid (HA) and laminin (LN) were detected by enzymelinked immunoassay (ELISA).Based on the isobaric tags for relative and absolute quantitation (iTRAQ) reagent 8-plex experiment,combined with 2DLC-MS/MS,the proteins in rats liver tissue of the medium dose group and the high dose group were compared with the those of control groups.Results ①The serum HA contents in the C (control) group,the L (low dose) group,the M (medium dose) group and the H (high dose) group were (198.51 ± 16.64),(218.39 ± 34.98),(261.72 ± 30.56) and (297.31 ± 35.72) ng/L;the serum PCⅢ contents in C,L,M and H groups were (15.32 ± 2.15),(16.78 ± 2.64),(19.51 ± 0.85) and (21.42 ± 1.63) μg/L;the serum LN contents in C,L,M and H groups were (734.57 ± 86.00),(792.65 ± 94.15),(916.83 ± 84.40) and (1 008.09 ± 64.17) μg/L;the serum Ⅳ-C contents in C,L,M and H groups were (52.34 ± 14.65),(59.72 ± 12.84),(74.38 ± 4.83) and (78.46 ± 4.30) μ.g/L,respectively.The differences in serological indices of liver fibrosis between-groups were statistically significant (F =21.136,19.957,22.007,14.288,all P ＜ 0.05).In multiple comparison of serum HA,PCⅢ and LN,there were no statistical significant differences between L group and C group.M and H groups were higher than L group and C group,significant statistical difference was found between H group and M group (all P ＜ 0.05).②Combining iTRAQ with 2DLC-MS/MS,based on the confidence threshold of protein (unused protScore) ＞ 1.3 and at least 1 matched peptides within the 95％ confidence interval,2 948 proteins were identified.Totally 2 162 proteins were detected in three groups compared with Venn diagram,after removing significant different proteins in C group,687 up-regulated proteins and 548 down-regulated proteins were identified in M group;633 up-regulated proteins and 519 downregulated were found in H group;the differences of protein expression between M and H groups were not statistically significant (P ＞ 0.05).③Up-regulated proteins related to the metabolism including AS3MT,MAT,SHMT,CHDH,CTH,CSAD and BHMT in M and H groups;of the two kinds of proteins of MTR,METK1 was up-regulated and F1LRB8 was down-regulated.Proteins associated with GSH including Gsta1,Gsta4,Gsta5,Gstt1,Gstt2,Gstk1,Gstp1,Gstm1,Gstm2,Gstm3,Gss,Gpx1,Gpx4,Esd,Hagh,Glo1,Mgst1 and B6DYQ5 which were all up-regulated.Proteins associated with liver fibrosis were Hic-5,Gss and six kinds of Tpm,and six kinds of Tpm subunits including two kinds of Tpm1,three kinds of Tpm2 and one kind of Tpm3 which were all up-regulated.Conclusions There is liver accumulation of arsenic after chronic arsenic exposure and resulting in liver fibrosis and decline of liver function.Expressions of AS3MT,MTR,MAT,SHMT,BHMT,CHDH,CTH and CSAD are up-regulated;arsenic meta bolism methionine cycle,folic acid cycle and sulfur transfer pathways are closely related.GSH plays an important role in arsenic metabolism and liver fibrosis,Hic-5,GSS and TPM may be associated with the occurrence of liver fibrosis.

Summary: The expression of inducible co-stimulator (ICOS) in peripheral blood T lymphocytes from the patients with systemic lupus erythematosus (SLE) and the role in the pathogenesis of SLE was investigated. By using two-color immunofluorescent staining and flow cytometric assay, the expression levels of ICOS in peripheal blood T lymphocytes from 33 patients with SLE and 16 healthy volunteers were detected. SLE diseases activity index (SLEDAI) of the patients with SLE was used to evaluate the disease activity. The correlation between the ICOS expression and SLEDAI was analyzed among the groups. The results showed that the expression levels of ICOS in T lymphocytes in active SLE group was markedly higher than those in the control and inactive SLE groups (both P<0.01). There was no significant difference in the expression levels of ICOS between the inactive SLE and the control groups (P>0.05). In active SLE and inactive SLE groups, positive linear correlation was found between the levels of the ICOS expression in T lymphocytes and SLEDAI (r=0.711, P＝0.001; r=0.561, P＝0.03). It was suggested that the expression of ICOS in peripheral blood T lymphocytes from the patients with active SLE was up-regulated and and ICOS might be related to the pathogenesis of SLE.

Objective To investigate the risk factors for post-ERCP complications. Methods Data of the patients who underwent ERCP in the First Affiliated Hospital of Nanchang University from 1 January 2011 to 31 December 2013 were retrospectively analyzed. Post-ERCP complications were analyzed by univariate and multivariate analyses. Results A total of 277 patients out of 1 951 developed complications, 101(5.18%)pancreatitis, 54(2.77%)hyperamylasemia(not including pancreatitis), 134(6.87%) biliary infection,8(0.41%)hemorrhage,1(0.05%)obstruction and 1(0.05%)perforation.Multivariate analyses showed cholangiocarcinoma(P=0.002,OR=2.39, 95% CI:1.38-4.14), long operation time(>60 min)(P=0.020,OR=3.77,95%CI:1.23-11.53)and endoscopic sphincterotomy(EST)(P=0.008, OR=2.56,95% CI:1.28-5.14)and entrance of guidewire to pancreatic duct(P=0.012,OR=1.43, 95%CI:1.08-1.87)were independent risk factors for PEP. Cholangiocarcinoma(P<0.01, OR=2.93, 95%CI:1.88-4.56),multiple times of ERCP during the period of hospitalization(P<0.01, OR=2.53, 95%CI:1.63-3.93)were independent risk factors for post-cholangitis. However, EST(P=0.03, OR=0.65,95%CI:0.44-0.97)and antibiotics prophylaxis after ERCP(P=0.03, OR=0.64, 95% CI:0.39-0.95)were protective factors for post-cholangitis. ConclusionCholangiocarcinoma, endoscopic sphincterotomy, long operation time(> 60 min)and entrance of guidewire to pancreatic duct were independent risk factors for PEP. Cholangiocarcinoma and multiple ERCP during the period of hospitalization are independent risk factors for post-cholangitis.EST and antibiotics prophylaxis after ERCP might reduce the occurrence of cholangitis.