Objective:To investigate the changes of CD4+T cells,CD8+T cells and myeloid derived suppressor cells( MDSC) in immune organs of lung cancer mice.Methods: Lung cancer mouse models were made by subcutaneously injection of Lewis lung cancer cell line( LLC).The CD4+T cell,CD8+T cell and MDSC were detected by flow cytometry.Results:Compared to that of normal control mice,the ratio and numbers of CD4+and CD8+T cell were significantly decreased in the spleen and lymph nodes of lung cancer mice.The number of CD4+T cells had no significant change while CD8+T cells decreased in the bone marrow of lung cancer mice.However,the ratio and number of MDSC were significantly increased in the bone marrow,spleen and lymph nodes of lung cancer mice compared to that of normal control mice.Conclusion: The development of lung cancer leads to decreased T cells and increased MDSC;which may induce immune tolerance to tumor cells.

Objective To investigate the role of apoptosis and the regulating role of receptor interacting protein 1(RIP1) in acute pancreatitis .Methods Thirty C57 mice were divided into three groups :control group ,acute edematous pancreatitis (AEP) group and acute necrotizing pancreatitis (ANP) group .The AEP group was continuously injected by cerulein 50 μg/kg for 13 times ,the ANP group was continuously injected by cerulein 50μg/kg for 13 times and lipopolysaccharide 15 mg/kg once;the con‐trol group was injected by the same volume of normal saline for 7 times .The acinar cell apoptosis was observed by the terminal de‐oxynucleotidyl transferase‐mediated deoxyuridine triphosphate nick‐end labeling (TUNEL) assay .The RIP1 mRNA expression was measured by real time fluorescence PCR .The expression of RIP1 protein was detected by Western blotting .Results The mouse models of AEP and ANP were established successfully .Compared with the control group ,acinar cell apoptosis existed in both AEP and ANP model groups ,moreover compared with the AEP group ,apoptosis in the ANP group were decreased ,the differences were statistically significant(P<0 .05) .Compared with the control group ,the expression of RIP1 mRNA and protein in the AEP group was increased ,while which in the ANP group were decreased ,the differences were statistically significant(P<0 .05) .Conclusion RIP1 participate in the pathogenesis of acute pancreatitis ,which may associate with acinar cell apoptosis .

Purpose To investigate the correlation of Dock180 and miR-31 expression in breast cancer cells,and to observe the effect of miR-31 on the invasion of breast cancer cells by Dock180.Methods MiR-31 was transfected into breast cancer cells by liposome transfection technique.The actual binding site of miR-31 to the 3'-untranslated region of Dock180 was confirmed through luciferase assay.Western blot was performed to detect the expression of Dockl80 and other related proteins.Real-time PCR was used to measure the expression of Dock180.Matrigel invasion were performed to detect the invasion of breast cancer cell lines with miR-31 increased.Resuits The protein levels of Dock180 in breast cancer cell lines negatively correlated with miR-31 expression,and Dock180 was directly targeted by miR-31.Dock180 downregulation and miR-31 overexpression reduced breast cancer cells invasion.Conclusion Dock180 modulated by miR-31 plays an important function in breast cancer cell lines invasion.

Forty-five male mice were used and divided into three groups: i.e. experimental gastric ulcer group, saline control group and normal control group. After experimental gastric ulcer was induced, the mice of three groups received intraperitoneal injection of colchicine and were sacrificed 3h later at 3, 6, 9 and 20 days, respectively. The antral mucosa was removed and processed by Sternberger's immunocytochemical PAP method to show G cells and counterstained with hematoxylin. In normal control group, the mitotic index of the antral mucosal epithelial and glandular cells was 5.93?1.23; the percentage of G cells was 2.76?0.45; the mitotic index I of G cells (the number of the mitotic G cells per 100 G cells) was 0.85?0.18; and the mitotic index II of G cells (the number of mitotic figures of the G cells per 100 antral epithelial, glandular and G cells) was 0.02?0.01. The mitotic index of the antral mucosal epithelial and glandular cells, the percentage and the mitotic index II of G cells on 6th, 9th and 20th days in experimental gastric ulcer group was raised and showed highly significant statistical difference from that of the control group, respectively. The mitotic index I of G cells was raised on 9th day in the experimental gastric ulcer group and significant difference between experimental gastric ulcer group and the control group was found. It also revealed a significant diference in the experimental gastric ulcer group as compared with saline control group on 20th day. The percentage of G cells on 6th day was most high, but the peak of mitotic number of G cells appeared on 9th day in the experimental gastric ulcer group. The distribution of G cells was found upward in the glands near the ulcer on 3rd and 6th day than in normal control. These findings suggest that the number, origin, distribution and shape of the G cells in the pyloric glands exhibited dynamic changes with the passage of time. The results suggested that the G cells might participate in the regulation of regeneration of antral mucosa during experimental gastric ulcer.

Objective To realize antimicrobial resistance and carrying status of OXA carbapenemase among imi-penem-resistant Acinetobacter baumannii (IRAB)isolated from patients of Hohhot,so as to provide guidance for the prevention and control of healthcare-associated infection(HAI)caused by multidrug-resistant Acinetobacter bauman-nii .Methods 49 IRAB isolates from 3 tertiary first-class hospitals in Hohhot between January and December 2012 were collected,antimicrobial susceptibility testing was performed by Kirby-Bauer disk diffusion method,four geno-types(blaOXA-51-like ,blaOXA-23-like ,blaOXA-24-like ,blaOXA-58-like )of OXA carbapenemase were detected by polymerase chain reaction (PCR).Results All 49 isolated IRAB strains were found to be highly resistant to antimicrobial agents (81 .63%-100.00%)except to minocycline (8.16%);blaOXA-51-like was identified in 49 strains (100.00%),42 (85.71 %)of which also carried blaOXA-23-like gene ,blaOXA-23-lik and blaOXA-51-like were both found in three hospital, blaOXA-24-like and blaOXA-58-like weren’t found.Conclusion IRAB strains present multidrug resistance,resistant to mi-nocycline is the lowest;blaOXA-23-like is the main drug-resistance mechanism of IRAB in Hohhot.

Objective To investigate the safety of tanshinone Ⅱ A sodium sulfonate in treatment of acute cerebral hemorrhage.Methods One hundred and seventy-two patients with acute cerebral hemorrhage were divided into tanshinone treatment group with 84 cases (tanshinone Ⅱ A sodium sulfonate + traditional treatment) and traditional treatment group with 88 cases (traditional treatment) according to the method of treatment.The safety (including neural function defect,adverse reactions,rebleeding rate and mortality and so on) were determined before treatment,and 2,4 weeks after treatment.Results The chinese stroke scale (CSS) scores in tanshinone treatment group after treatment of 2,4 weeks were lower than those in traditional treatment group [(13.2 ± 4.3) scores vs.(17.4 ± 5.6) scores,(8.7 ± 3.5) scores vs.(12.8 ± 4.6) scores],there were significant differences (t =5.498,6.556,P ＜ 0.01).The total effective rate in tanshinone treatment group was significantly higher than that in treatment group [83.3 ％ (70/84) vs.65.9 ％ (58/88)],there was significant difference (x2 =6.854,P ＜ 0.01).After treatment with tanshinone Ⅱ A sodium sulfonate in tanshinone treatment group,5 cases of mild skin rash,3 cases of nausea,vomiting,to turn for the better after symptomatic treatment.There was not other adverse reactions in the observation period.The mortality,rebleeding rate in tanshinone treatment group were lower than those in traditional treatment group,but there were no significant differences (P ＞ 0.05).Conclusions Early application of tanshinone Ⅱ A sulfonate treatment in acute cerebral hemorrhage has significantly efficacy,in the process of the clinical application is safe amd reliable.It is worthy of clinical popularization.

Chitosan-Ru ( bpy ) 2+3 -SiO2 composite nanoparticles ( CRuS NPs ) were prepared by reverse microemulsion method, and based on the Nafion/MCNT composite membrane technology, CRuS NPs were effectively and steadily immobilize on the surface of a glassy carbon electrode to prepare the electrochemiluminescence sensor for uric acid determination. In 0. 1 mol/L PBS (pH 7. 4) buffer solution, when the actuation duration between uric acid and the modified electrode was 15 min, the electrochemiluminescence showed a good linear relationship to the negative logarithm of uric acid concentration in the range of 1. 0 × 10-10-1. 0 × 10-5 mol/L, the linear equation was IECL=-709. 52-202. 74lgC and the correlation coefficient was 0. 9936 with a detection limit of 6. 0 × 10-12 mol/L. The ECL sensor exhibited excellent repeatability and stability, and the RSD for 11 times determination of 1. 0 × 10-8 mol/L uric acid was 2. 9%. The recovery was 98. 5%-103. 5% in the determination of real Uric acid sample.

Objective To explore the clinical features of renal and urinary lesions in IgG4-related disease (IgG4-RD).Methods Clinical manifestation,laboratory profiles,iconography images,pathologic findings,treatment and prognosis of 6 IgG4-RD patients with renal and urinary system involvement from Peking Union Medical College Hospital during Aug 2010 to Dec 2011 were analyzed retrospectively.Results Six patients had renal and/or urinary lesions among IgG4-RD cases diagnosed in our hospital,including 4 males and 2 women,with median age of 59 years (36 to 72 years) and median disease course of 10.5 months.All the patients presented multiple organ involvement simultaneously.Urinary system lesion varied,including renal dysfunction,abdominal pain and edema.Hyperglobulinemia,elevated serum IgG (median 23.3 g/L) and IgG4 (median 4227.0 mg/L),tubular proteinuria were found in all the 6 patients,and elevated Scr (median 237 μmol/L) in 5 cases.Kidney CT image often showed renal swelling,hydronephrosis,multiple low density focus with attenuation and kidney atrophy.Renal pathology revealed interstitial inflammatory cells infiltration comprising predominantly plasma cells and lymphocytes,with a high prevalence of IgG4-positive cells often admixed with fibrosis,which fit the features of tubulointerstitial nephritis.Patients with IgG4-RD nephropathy presented good response to glucocorticoids.After therapy,the symptoms were improved and serum IgG,IgG4 and Scr decreased.Conclusions Renal and urinary lesions of IgG4-RD are heterogeneous in clinical manifestation,and are often complicated with various organ lesions.The feature of renal histopathology is tubulointerstitial nephritis infiltrated by plasma cells and lymphocytes with positive IgG4.Glucocorticoids treatment is effective for this disease.

Objective To design a kind of aseptic drainage device with safe practice and accurate measurement for clinical nurses. Methods The experiment group included 63 cases using drainage device with accurate measurement,and control group included 63 cases using disposal drainage bag with scale of visual measurement.The accuracy of drainage liquid measurement was compared between two groups,and bacterial culture was made for the drainage liquid of two groups.Results The measurement error of experiment group and control group was(3.31±1.8)mL and(56.0±5.8)mL,respectively.The difference was significant(t=-4.593,P<0.01).The bacterial culture results showed no obvious difference between two groups(positive rate were 15.9%vs 17.5%,χ2=0.057,P>0.05). Conclusion The accurately measured aseptic drainage device is convenient for nurses to practice in clinics,and its application can reduce workload of nurses and decrease the occurrence of pollution.