Objective To systematically investigate the pretreatment impact of proton pump inhibitor (PPI) on Helicobacter pylori (HP) eradication rate .Methods PubMed ,EMBASE ,Cochrane database ,Web of Science ,Clinical trial .gov ,SinoMed ,China National Knowledge Internet ,WANFANG Data ,VIP database and Google Scholar were used to search for randomized controlled trials(RCT) .HP eradication rate was calculated by per‐protocol analysis (PP) .RevMan 5 .2 was applied to analyze data .Results There were 10 articles included (982 cases) ,43 cases didn′t meet the program have been removed ,a total of 939 cases included .The result showed that there was no significant difference between the pretreatment of PPI group and the control group ,RR= 0 .99 (95% CI:0 .95-1 .04 ,P=0 .75) .Conducted a subgroup analysis according to eradication regimen ,regimen combining a PPI ,amoxi‐cillin and clarithromycin and regimen combining a PPI ,clarithromycin and metronidazole the pooled risk ratio were 1 .02(95% CI:0 .90-1 .14 ,P=0 .79)and 1 .02(95% CI:0 .92-1 .12 ,P=0 .74)respectively ,there were no significant difference as well .Conclusion The pretreatment with PPI does not affect HP eradication rates of triple or quadruple therapies for HP eradication .We can eradi‐cate HP directly for the patients who have used PPI but were diagnosed to be positive to HP .

To study the effect of sodium aescinate in inducing human breast cancer MCF-7 cells apoptosis and its possible mechanism. MTT assay was used to detect the inhibitory effect of sodium aescinate on the proliferation of MCF-7 cells. The morphological changes were observed under inverted microscope. DAPI nuclear staining was used to detect the changes in cell nucleus. Annexin V-FITC/PI flow cytometry was adopted to test the apoptosis rate. Changes in apoptosis-related proteins (PARP, cleaved caspase-8 and pro-caspase-3), cell survival-associated signal molecules (AKT and ERK) and their common upstream kinase SRC was detected by Western blotting. The result showed that after different concentrations of sodium aescinate were used to treat breast cancer MCF-7 cells, they inhibited the proliferation of MCF-7 cells in a dose-dependent manner, induced cell apoptosis (typical morphological changes in nucleus, significant increase in cell apoptosis rate). The expressions of cleaved PARP and caspase-8 increased, while the expression of pro-caspase-3 decreased, which further verified sodium aescinate's effect in inducing cell apoptosis. Sodium aescinate significantly inhibited the phosphorylation of cell survival-related signal molecules (AKT, ERK) and down-regulate the activation of their common up-stream kinase SRC. The findings indicated that sodium aescinate can block signals transiting to downstream molecules AKT, ERK, inhibit the proliferation of breast cancer cell MCF-7 cell apoptosis and induced cell apoptosis by suppressing the activation of SRC.
Antineoplastic Agents, Phytogenic ; pharmacology ; Apoptosis ; drug effects ; Breast Neoplasms ; drug therapy ; enzymology ; genetics ; physiopathology ; Down-Regulation ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Extracellular Signal-Regulated MAP Kinases ; genetics ; metabolism ; Female ; Humans ; MCF-7 Cells ; Proto-Oncogene Proteins c-akt ; genetics ; metabolism ; Saponins ; pharmacology ; Signal Transduction ; drug effects ; Triterpenes ; pharmacology ; src-Family Kinases ; genetics ; metabolism

Objective To study the mechanism of mast cell increase in cellular leiomyoma of uterus.Methods Tissue sections from 30 cases of cellular leiomyoma of uterus,15 cases of leiomyosarcoma and 30 cases of ordinary leiomyoma were studied using immunohistochemical double labeling techniques.The expression of mast cell tryptase ahd Ki-67 as well as mast cell tryptase and chemotactic factors RANTES,Eotaxin,monocyte chemoattractant protein-1(MCP-1),transforming growth factor-? (TGF-?)were double immunostained.Results Ki-67 in mast cells was rarely expressed in each group. Expressions of regulate upon activation normal T cell expressed and secreted(RANTES),Eotaxin and TGF-? in cellular leiomyoma were 78%,89%,91%,respectively.They were all higher than those in ordinary leiomyoma and leiomyosarcoma(P

OBJECTIVE To investigate the clinical significance of human papillomavirus in paraffin-embedded cervical cancer and precancerous lesion tissue by gene clip technology.METHODS 153 Patients with paraffin-embedded examples.DNA was extracted from paraffin-embedded tissues and amplified by polymerase chain reaction(PCR).RESULTS The positive rate of high-risk HPV of inflammation was 8.33%,CINⅠ45.83%,CINⅡ/CINⅢ 87.50% and invasive cancer 92.21%.The HPV infection rate of squamous cell carcinoma was 94.12%.The HPV infection rate of adenocarcinoma was 88.46%.Among all the patients with cervical cancer and CIN,the infection rate of HPV16,the most genotype,was 88.98%.The infection rate of HPV18,the second most subtype,was 33.06%.In addition,the minority were infected HPV52、33、59、68.Among 48 cases of cervical squamous cell carcinoma,the infection rate of HPV16,HPV18 was 93.73% and 27.08% respectively.Among 23 cases of cervical adenocarcinoma,the infection rate of HPV16,HPV18 was 82.61% and 52.17% respectively.On the other hand,all the patients with cervicitis were HPV single infection.The HPV multiple infection rate of CINⅠ,CINⅡ/CINⅢ,cervical cancer was 20.00%,28.57%,36.62% respectively.CONCLUSIONS Gene chip technology can detect multiple HPV genotypes in paraffin-embedded tissues with high sensitivity and specificity,which is useful in the pathogenesis and prevention of cervical cancer.

OBJECTIVETo study the effect of oleic acid (OA) on expression of aquaglyceroporin genes, AQP3 and AQP9, in hepatocyte steatosis and to investigate the underlying molecular mechanisms using an in vitro system.

METHODSHepG2 cells were treated with OA at different concentration to establish in vitro models of nonalcoholic hepatocyte steatosis. The corresponding extents of hepatic steatosis modeling were assessed by oil red O staining and optical density (OD) measurements of the intracellular fat content. The model lines were then treated with inhibitors of the PI3K/Akt and p38 MAPK signaling pathway factors and effects on AQP3/9 expression was measured by real time RT-PCR and western blotting.

RESULTSThe fat concentration, indicative of hepatic steatosis, increased in conjunction with increased concentrations of OA (0 less than 250 less than 500 mumol/L). OA exposure also down-regulated AQP3 mRNA and up-regulated AQP9 mRNA levels in a concentration-dependent manner. The most robust changes in expression occurred in response to the 500 mumol/L concentration of OA for both AQP3 (0.47+/-0.18; t = 4.5450, P less than 0.05) and AQP9 (1.57+/-0.21; t = 3.0306, P less than 0.05). Treatment with OA + PI3K pathway inhibitor (LY294004) significantly decreased AQP9 mRNA expression (4.55+/-0.62) as compared to the control group (1.00+/-0.10; t = 9.7909, P less than 0.01), that 500 mumol/L OA group (2.43+/-0.53; t = 4.5018, P less than 0.05), and the LY294002 group (1.90+/-0.16; t = 7.1683, P less than 0.01). Treatment with p38 MAPK pathway inhibitor (SB230580) significantly increased the OA-suppressed level of AQP3 mRNA to the level detected in the control group (1.27+/-0.11; t = 5.7455, P less than 0.01) and decreased the OA-stimulated AQP9 mRNA (0.38+/-0.09; t = 6.5727, P less than 0.01). No significant changes in mRNA expression of AQP3/9 were observed with inhibition of the ERK1/2 and JNK signal transduction pathways. The OA-induced changes in protein expression levels of AQR3 and AQP9 followed a similar trend of the genes. Finally, OA suppressed the level of phosphorylated Akt (from 0.21+/-0.02 to 0.13+/-0.03; t = 3.8431, P less than 0.05) but elevated the level of phosphorylated p38 (from 0.58+/-0.06 to 1.02+/-0.10; t = 12.5289, P less than 0.01). Again, OA treatment produced no significant affect on ERK1/2 and JNK phosphorylation.

CONCLUSIONOA down-regulates AQP3 expression by stimulating the p38 MAPK signaling pathway, and up-regulates the AQP9 by blocking the PI3K/Akt pathway and activating the p38 MAPK signaling pathway.

Aquaporin 3 ; metabolism ; Aquaporins ; metabolism ; Fatty Liver ; metabolism ; pathology ; Gene Expression Regulation ; drug effects ; Hep G2 Cells ; Humans ; Oleic Acid ; pharmacology ; Phosphatidylinositol 3-Kinases ; metabolism ; Signal Transduction ; p38 Mitogen-Activated Protein Kinases ; metabolism

Objective To evaluate the therapeutic effect of Shuxuetong injection on acute ischemic stroke. Methods One hundred and ninety-six patients with acute ischemic stroke were randomly divided into Shuxuetong injection treatment group (n=98) and control group (n=98). The neurological deficiency scores, scores of cognitive dysfunction and clinical outcomes were evaluated; and the cerebral blood flow were evaluated by Doppler before treatment and 2 weeks after the therapy.Results The improvement of neurological function and clinical outcomes in the Shuxuetong injection treatment group was more obvious as compared with that in the control group and the improvement rate of patients in the treatment group was higher than that in the controls; Patients in the Shuxuetong injection treatment group enjoyed less worsening than the controls. The cognitive dysfunction 2 weeks after the therapy were significantly improved as compared with those before treatment (P＜0.05); and the cerebral blood flow after the treatment was significantly increased as compared with that before the treatment (P＜0.05); these improvements in the Shuxuetong injection treatment group were much obvious as compared with those in the controls. Conclusion Shuxuetong is effective in treating cerebral ischemic patients.

Insulin-like growth factor binding-protein-7 (IGFBP7) was obtained from our previous colonic adenocarcinoma (CRC) and normal mucosa suppression subtraction hybridization (SSH) cDNA libraries. By RT-PCR and immunohistochemistry, we found that IGFBP7 was overexpressed in CRC tissue compared to normal tissue. However, our in vitro experiments performed in 10 CRC cell lines showed that IGFBP7 expressed only in SW480 and Caco2 cell lines, which implied an underlying reversible regulatory mechanism. Using methylation-specific PCR (MSP) and bisulfite sodium PCR (BSP), we found that its expression was associated with DNA hypomethylation of exon1. This was further supported by the in vitro study which showed restored IGFBP7 expression after demethylation agent 5-aza-2'-deoxycytidine treatment. Correlation analysis between IGFBP7 expression and prognosis indicated that overexpression of IGFBP7 in CRC tissue correlated with favourable survival. Investigation of the functional role of IGFBP7 through transfection studies showed that IGFBP7 protein could inhibit growth rate, decrease colony formation activity, and induce apoptosis in RKO and SW620 cells, suggesting it a potential tumor suppressor protein in colorectal carcinogenesis. In conclusion, our study clearly demonstrated that IGFBP7 plays a potential tumor suppressor role against colorectal carcinogenesis and its expression is associated with DNA hypomethylation of exon 1.
Adenocarcinoma ; genetics ; metabolism ; Apoptosis ; genetics ; Cell Line, Tumor ; Colorectal Neoplasms ; genetics ; metabolism ; DNA Methylation ; Exons ; Gene Expression Regulation, Neoplastic ; genetics ; Humans ; Insulin-Like Growth Factor Binding Proteins ; genetics ; metabolism ; Transfection ; Tumor Suppressor Proteins ; genetics ; metabolism

OBJECTIVETo explore the clinical efficacy of high-frequency oscillatory ventilation (HFOV) combined with pulmonary surfactant (PS) in the treatment of neonatal pulmonary hemorrhage (NPH).

METHODSA total of 122 neonates diagnosed with NPH between January 2010 and June 2014 were enrolled. After being stratified by gestational age, the neonates were randomly divided into treatment (HFOV+PS) and control (HFOV alone) groups (n=61 each). Both groups were treated with HFOV after the onset of NPH. After 2-4 hours of HFOV treatment, the treatment group received PS via intratracheal injections, followed by continuous use of HFOV. Dynamic changes in the blood gas, oxygenation index (OI), and PaO2/FiO2 (P/F) values of the neonates were determined before HFOV treatment and after 6, 12, and 24 hours of HFOV treatment. The time to hemostasis, duration of ventilation, incidence of complications, and cure rate were compared between groups.

RESULTSAfter 6, 12, and 24 hours of HFOV treatment, the treatment group had significantly improved PaO2, PaCO2, O/I, and P/F values compared with the control group (P<0.05). The time to hemostasis and the duration of ventilation were significantly shorter in the treatment group than in the control group (P<0.01), and the incidence of complications was lower in the former than in the latter (P<0.05). There was no significant difference in the cure rate between the treatment (87%) and control (82%) groups (P>0.05).

CONCLUSIONSHFOV combined with PS is an effective treatment to improve oxygenation, shorten the time to hemostasis and the duration of ventilation, and reduce the incidence of complications in neonates with NPH. However, the dual therapy is unable to reduce the mortality of neonates compared with HFOV monotherapy.

Combined Modality Therapy ; Female ; Hemorrhage ; therapy ; High-Frequency Ventilation ; Humans ; Infant, Newborn ; Lung Diseases ; therapy ; Male ; Pulmonary Surfactants ; therapeutic use

This study was aimed to explore the effects of interleukin 21 (IL-21) on the anti-leukemia activity of cytotoxic T lymphocytes (CTL) induced by dendritic cells (DCs) in vitro. The peripheral mononuclear cells from leukemia patients in complete remission were cultured with the specific cytokines to induce the production of DCs. The DCs loaded with RNA from autologous leukemic cells as antigen, and co-cultured with autologous T lymphocytes to get leukemia specific CTL. The cytotoxic activity of CTL against autologous leukemic cells was measured by LDH release method. The concentration of IFN-gamma and TNF-alpha in the culture supernatant was measured by enzyme immunoassay. The effects of IL-21 on the mature DCs were also studied by the measurement of the phenotype of DC and the allogenic mixed lymphocytic reactions induced by DCs. Experiments were divided into 2 groups: test group in which IL-21 (200 ng/ml) was added in coculture of DC/CTL and control group in which no IL-21 (200 ng/ml) was added. The results showed that when cultured with IL-21, the quantity of CTL increased from (56.73 +/- 10.21)% (control group) to (73.43 +/- 18.01)% (p < 0.01); The concentration of IFN-gamma and TNF-alpha in the culture supernatant increased from (154.91 +/- 67.20) ng/L (control group) to (310.62 +/- 141.15) ng/L (p < 0.01) and from (8.77 +/- 5.09) microg/L (control group) to (15.25 +/- 6.56) microg/L (p < 0.01) respectively. At the effector: target ratio of 20:1, the cytotoxic activity against autologous leukemic cells by CTL increased from (50.22 +/- 5.07)% (control group) to (75.38 +/- 9.47)% (p < 0.01). IL-21 had neither effect on the phenotype (CD1a, CD83, CD86, CD80 and HLA-DR) of mature DCs nor the allogeneic mixed lymphocytic reactions induced by DCs. It is concluded that IL-21 can strengthen the proliferation of CTL, and improve the production of IFN-gamma and TNF-alpha, thus enhance the anti-leukemia activity of CTL. Nevertheless, there is no effect of IL-21 on the function of mature DCs. These data indicate that IL-21 has a potential clinical value in the enhancement of anti-leukemia immunotherapy.
Adult ; CD8-Positive T-Lymphocytes ; drug effects ; Cell Proliferation ; Cytotoxicity, Immunologic ; drug effects ; Dendritic Cells ; cytology ; drug effects ; Female ; Humans ; Interferon-gamma ; immunology ; Interleukins ; pharmacology ; K562 Cells ; Leukemia ; drug therapy ; immunology ; Male ; Middle Aged ; T-Lymphocytes, Cytotoxic ; drug effects ; Tumor Necrosis Factor-alpha ; immunology ; Young Adult

OBJECTIVETo investigate the effect of aging on the expressions of monocyte chemoattractant protein 1 (MCP-1) and intercellular adhesion molecule 1 (ICAM-1) in the lung tissue of rats with lipopolysaccharide (LPS)-induced acute lung injury (ALI).

METHODSBoth young (3 months old) and aged (27 months old) female Wistar rats were randomly divided into two groups (n=8), namely the normal control and LPS-induced ALI groups. Immunohistochemistry for of ED-1 was used to detect the infiltrating inflammatory cells. Western blot and Northern blot analyses were employed for evaluating the expressions of MCP-1 and ICAM-1 at the protein and mRNA levels.

RESULTSVirtually no ED-1-positive cells were found in the lung tissue of the control rats in the young and aged groups. After LPS-induced ALI, ED-1-positive cells in the lung tissues increased significantly in both young and aged groups (P<0.05), and the increment was more obviously in the aged group (P<0.05). In the two normal control groups, the aged rats showed significantly higher expressions of MCP-1 and ICAM-1 than the young rats (P<0.05); LPS significantly up-regulated their expression in the young and aged groups (P<0.05), but the latter showed greater increments (P<0.05). The aged rats with ALI also showed significantly greater MCP-1 and ICAM-1 increments than those of the young rats (P<0.05).

CONCLUSIONSAging may upregulate lung MCP-1 and ICAM-1 expressions and enhance LPS-induced increments of MCP-1 and ICAM-1 expressions to exacerbate the pulmonary inflammation in rats.

Acute Lung Injury ; chemically induced ; metabolism ; Aging ; Animals ; Chemokine CCL2 ; genetics ; metabolism ; Female ; Intercellular Adhesion Molecule-1 ; genetics ; metabolism ; Lipopolysaccharides ; Lung ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Random Allocation ; Rats ; Rats, Wistar ; Up-Regulation