Objective To examine the role of c-Jun NH2-terminal kinase(JNK) 1 in cytolytic T lymphocyte (CTL) responses against virus infection.Methods Wild-type (WT) and JNK1-knockout (JNK1-/-) mice were infected with ectromelia virus(ECTV) through hind footpads.Survival and virus titers in the target organs (liver and spleen) were analyzed.Effector T cells in the spleen and popliteal lymph nodes were determined on day 3 and 7 post-infection.Proliferation and INF-γ production of CTL were also detected.Results JNK1 deficiency caused an increased susceptibility to ECTV infection in mice,indicated by higher case fatality and viral burden in target organs.The decrease in CTL response correlated with a defect in CTL proliferation and INF-γproduction.Conclusion The data suggest that JNK1 is involved in expansion of activated CTL during ECTV infection,and plays an important antiviral role in regulating the proliferation and effector function of CTL.

Objective To identify the most common fungal pathogens and their antifungal drug resistance in autoimmune disease (AD) patients with fungal infection , for guiding the rational use of antifungal therapy. Methods The identification were analyzed by ATB Expression automatic microbiology analytical instrument system. The antifungal susceptibility test was done by ATB FUNGUS strip. Results Of 428 patients studied,36(8.4%) had fungal infections. The most commonly infective sites were lower respiratory tract(53.5%),urinary tract(20.9%), intestinal tract(11.6%). A total of 43 fungi strains were isolated, the most common fungi were Candida albicans (65.1%), Candida glabrata (11.6%), Candida tropicalis (7.0%),and Candida parapsilosis (4.7%).Resistance rates of Candida albicans against ketoconazole, miconazole and econazole were 35. 7% , 46.4% and 32.1% , while resistance rates to fluconazole, amphotericin B, nystain and flucytosine were much lower, being 0, 14.3% , 14.3% and 7.1% . The resistance rates of other fungi were similar to Candida albicans. Conclusion The main pathogens causing fungal infection in patients with AD is Candida albicans. It should as early as possible process the clinical antifungal therapy under the result of antifungal susceptibility test and supportive measure.

Objective To investigate the clinical significance of MTAP, CDKN2A and CDKN2B gene expression in diffuse large B-cell lymphoma (DLBCL). Methods MTAP, CDKN2A and CDKN2B gene expression were assessed by Real-time quantitative PCR in 40 cases of DLBCL and 19 cases of reactive hyperplasia. The clinical and follow-up data were also collected. Results Comparing with reactive hyperplasia, MTAP, CDKN2A and CDKN2B gene expression were decreased in DLBCL group (P = 0.024,0.044 and 0.047, respectively). Low-expression of all the three genes were associated with advanced Ann Arbor stage (P=0.004, 0.001 and 0.027, respectively). No obvious difference were observed according to gender, age, the number of the extra-nodal infiltration, ECOG score, bone marrow involvement and serum LDH level (P ＞0.05). MTAP and CDKN2A gene expression were associated with B symptoms (P =0.003 and 0.028, respectively) and IPI scores (P =0.001 and 0.011, respectively). With regard to survival rates,MTAP, CDKN2A and CDKN2B gene expression were significantly associated with OS (P =0.022, 0.019 and 0.042, respectively). Conclusion MTAP, CDKN2A and CDKN2B gene expression in DLBCL were decreased and related to disease progression and prognosis. They could be considered as biomarkers to evaluate biological behavior and clinical outcome of DLBCL patients.

Objective To extract,detect and validate the BACE1 expression-regulating lncRNA BACE1-AS containing in the plasma of patients with AD in Chinese Han people,so as to provide a research basis for plasma BACE1-AS in AD to be a plasma molecular markers and a new target for treatment.Methods The study included 27 AD patients and 28 normal individuals whose age,sex,education,etc.were matched between AD and controi group.Total RNA extraction of plasma was performed using guanidine isothiocyanate-phenol chloroform method.Target gene amplification was executed by RT-PCR Kit.Gel electrophoresis and its imaging analysis were performed on the RT-PCR amplified products.Target gene amplified products were sequenced,its sequence consistency with gene bank-reported sequence were compared,and differences in target gene transcription between the two groups were statistically analyzed.Results The positive expression rates of BACE1-AS were 18.5％(5/27 cases)in ADgroup and 0.0％ in control group,respectively(P=0.023).In comparison between two groups,there was a significant difference (P =0.023).Gene sequencing confirmed the consistent between BACE1-AS gene sequence of 3 patients with AD and Gene Bank's BACE1-AS sequence.But the two other AD cases showed individual base replacement.Conclusions Compared with the healthy control group,patients with AD show specific BACE1 expression-regulating lncRNA BACE1-AS in plasma of AD patients,which provides theoretical basis for BACE1 AS as a biomarker of AD diagnosis and a new target in therapy of AD.

Objective To investigate the expression and clinical significance of interleukin -6 (IL -6)in aggressive and indolent lymphoma patients.Methods Serum specimens obtained from 1 07 non -Hodgkin's lympho-ma (NHL)patients and 50 healthy controls were collected.Chemiluminescence immunoassay was used to assess the expression of IL -6 in the serum.Results The level of serum IL -6(1 8.54 ±4.53)ng/L in aggressive lymphoma group was significantly higher than (6.90 ±1 .78)ng/L in the inert lymphoma group,and the serum IL -6 levels of two groups were significantly higher than the healthy control group (3.87 ±0.76)ng/L.The lymphoma patients,with B symptoms,elevated CRP or bone marrow involvement presented higher IL -6 level than the other patients (P <0.05).IL -6 level of the IPI high -risk group was higher than the intermediate -risk group and low -risk group, with significant difference (P <0.05 ).The correlation study showed that IL -6 and CRP,IPI /FLIPI,Ann Arbor stage,B symptoms,bone marrow involvement had significantly positive correlation (P <0.05);Through analysis of the effect of the patients with aggressive lymphoma,the serum level of IL -6 in patients with complete remission was sig-nificantly higher than the non complete remission group.By Logistic regression analysis,IL -6 was one of the inde-pendent risk factors affecting the treatment effect of NHL,and the difference was statistically significant (P <0.05). Conclusion The serum IL -6 was significantly elevated in NHL patients,in association with tumor invasion,progno-sis and therapeutic effect.IL -6 may help the diagnosis and prognosis of NHL.

Background and purpose:The prognostic capability of traditional prognostic index like follicular lymphoma international prognostic index (FLIPI) is limited in the rituximab era. This study was to investigate the prognostic significance of peripheral blood absolute lymphocyte count/absolute monocyte count (ALC/AMC) in Chinese patients with follicular lymphoma (FL).Methods:This study retrospectively analyzed 136 newly diagnosed FL patients who received rituximab plus cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP)-like chemotherapy in Department of Hematology, Ruijin Hospital from Jan. 2003 to Dec. 2013, and further classified these patients according to FLIPI scoring system.Results:According to FLIPI, 61 patients (44.9%) were stratified into the low-risk (0-1 points) group, 42 cases (30.9%) into the intermediate-risk (2 points) group, and 33 cases (24.2%) into the high-risk (3-5 points) group. The overall response rate and 2-year progression-free survival (PFS) of the 3 risk groups were 88.5%, 95.2%, and 78.8% (P=0.090), and 91.4%, 74.6%, and 47.8% (log-rank=23.3,P<0.001), respectively. The overall response rate and 2-year PFS for patients with ALC/AMC≥4.7 and <4.7 were 91.9%, 68.6% (P=0.005) and 96.0%, 69.7% (log-rank=13.0,P<0.001), respectively. In the multivariate study, ALC/AMC≥4.7 was independent of FLIPI and was able to distinguish the FLIPI low-risk and intermediate-risk patients (log-rank=7.535,P=0.006).Conclusion:For FL patients treated with R-CHOP-like regimens, ALC/AMC is a simple and effective biomarker reflecting tumor microenvironment and human immunity, and could be considered for prognosis evaluation.

Objective To investigate the value of liver resection and radiofrequency ablation (RFA) on reactivation rates of hepatitis B virus (HBV) in hepatocellular cancer (HCC) patients with tumor ≤5 cm and determine influential factors.Methods Retrospective analysis was performed in clinical data of hepatocellular cancer patients with tumor ≤5 cm from Shengli Oilfield Centeral Hospital between July 2007 and March 2012,289 cases were assigned to liver resection group (n =157) and RFA group (n =132).Logistic regression was used to evaluate relative factors associated with HBV reactivation for univariate and multivariate analyses.The stratified x2 test was utilized to assess clinical outcomes in HBV reactivation subgroup with or without antiviral treatment.CD3 +,CD4+,CD8 +,CD4+/CD8 + and NK cell proportions were comparatively analysized.Results (1) The univariate and multivariate logistic regression analyses showed antiviral therapy,Child-Pugh grade,vascular invasion and treatment (liver resection or RFA) were significant risk factors of HBV reactivation (P ＜ 0.05).(2) HBV reactivation was lower in patients who received antiviral therapy than those who did not (10/109 vs 33/180,x2 =4.497,P ＜ 0.05).The viral reactivation rate for the liver resection group was higher than the RFA group in patients who did not receive antiviral therapy (24/98 vs 9/82,x2 =5.446,P ＜ 0.05),but the difference was not significant in patients who received antiviral therapy (6/59 vs 4/50,x2 =0.153,P ＞ 0.05).(3) The proportions of CD3 +,CD4 +,CD4 +/CD8 + and NK cell after treatment for 7 days decreased in various degrees for both the liver resection and RFA groups regardless of patients with or without antiviral therapy (P ＜ O.05).For the patients without antiviral therapy,the cell proportions in 7 days after treatment were significantly higher in the RFA group than that in the liver resection group (P ＜ 0.05),but the difference was not significant in patients with antiviral therapy (P ＞ 0.05).Conclusions For the patients with tumor ≤5 cm,the proportions of immunological cells decreased in liver resection when compared with RFA.Preoperative antiviral therapy may have partial response in immunological suppression,and lowered the incidence of HBV reactivation.

[ ABSTRACT] AIM: To investigate the underlying mechanisms responsible for endothelial dysfunction of type 1 diabetes mellitus (DM) rats fed with high-salt diet.METHODS:Type 1 DM was induced by intraperitoneal injection of streptozotocin (70 mg/kg).Normal and diabetic rats were fed high-salt food (HS, 8% NaCl) and standard food for 6 weeks, respectively.Isometric tension of the mesenteric arteries were measured .The expression of Akt , endothelial nitric oxide synthase (eNOS) and caveolin-1 (Cav-1) was examined by Western blot .RESULTS:The rats in DM+HS group exhibited more pronounced impairment of vasorelaxation to acetylcholine and insulin compared with either DM group or HS group (P<0.01).Akt and eNOS phosphorylation levels, and nitric oxide (NO) concentration in DM +HS group were significantly lower than those in DM group (P<0.01).The level of Cav-1 in DM+HS group was significantly higher than that in DM group and HS group .CONCLUSION:Impaired endothelial Akt activation , increased Cav-1 expression and re-sultant decreased eNOS activation contribute to aggravate high-salt diet-induced endothelial dysfunction and hypertension in DM rats.

Objective To understand the study habits of medical postgraduates in basic cours-es so as to provide references for the reformation of teaching methods. Methods Totally 250 postgra-duates of grade 2010 in our university were investigated with self-made questionnaire. The contents of the questionnaire included basic condition of postgraduates, study methods and suggestions for teaching methods. Rate, percentage and Chi-square test were applied to do statistical analysis. Results Accor-ding to the results of the collected 246 copies of questionnaire, 91.5%(225/246) did not preview lessons before class, 93.5%(230/246) took notes in class, 78.9%(194/246) simply took notes in the book, 60.6%(149/246) preferred more detailed courseware and 27.2%(67/246) reviewed lessons after class. The percentage of simply taking notes in the book of local students (86.5%) was significantly higher than that of army ones (73.2%) (P=0.030), but the percentages of preferring more detailed courseware and reviewing lessons after class of local students were significantly lower than those of army ones (P=0.008, P=0.016). Conclusions The proportion of previewing before class is low among postgrauates. Postgraduates depend heavily on teachers and do not review after class in time. There are differences between local students and army students in taking notes and review habits. It is important to cultivate postgraduates’good study habits.

Local medical college is the mainstream of altitude medical college education in our country.Facing furious competition,we must make a reasonable orientation,construct the characteristics of running school,establish scientific concept,construct specific subject and specialty and make an all-around development in order to walk up to national stage by depending on powerful unity,serve the regional economy and social development,and form a new situation of two patterns by converting single medical colleges to all-around college and remaining the existing single medical college.