Objective To study the clinical significance of changes of plasma nitric oxide (NO) and tumor necrosis factor (TNF) levels in patients with congestive heart failure (CHF).Methods Plasma NO and TNF in 68 CHF cases were tested.30 healthy subjects served as normal controls.Results Plasma NO and TNF levels in CHF patients were obviously higher than those in normal subjects (P

Objective To evaluate the correlation between transient elastrography (TE) and liver function Child-Pugh grade in patients with liver cirrhosis. Methods The clinical data of 120 patients with liver cirrhosis were retrospectively analyzed. Among the patients, hepatitis-B virus-related cirrhosis was in 103 cases, and 57 patients had ascites. The liver stiffness measurement (LSM) was measured by FibroScan. The liver function Child-Pugh grade was evaluated by liver function Child-Pugh system score. The LSM was compared in patients with different liver function Child-Pugh grade. Results Among the 120 patients with liver cirrhosis, Child-Pugh A grade was in 39 cases, Child-Pugh B grade in 28 cases, and Child-Pugh C grade in 53 cases. The LSM in Child-Pugh B grade patients and C grade patients were significantly higher than that in Child-Pugh A grade patients: (20.2 ± 1.1) and (30.8 ± 1.2) kPa vs. (15.7 ± 1.4) kPa, the LSM in Child-Pugh C grade patients was significantly higher than that in Child-Pugh B grade patients, and there were statistical differences (P<0.05). Among the 103 patients with hepatitis-B virus-related cirrhosis, Child-Pugh A grade was in 33 cases, Child-Pugh B grade in 24 cases, and Child-Pugh C grade in 46 cases. The LSM in Child-Pugh B grade patients and C grade patients were significantly higher than that in Child-Pugh A grade patients: (18.7 ± 0.9) and (26.9 ± 0.6) kPa vs. (12.6 ± 1.7) kPa, the LSM in Child-Pugh C grade patients was significantly higher than that in Child-Pugh B grade patients, and there were statistical difference (P<0.05). Among the 57 patients associated ascites, Child-Pugh B grade was in 11 cases, and Child-Pugh C grade in 46 cases. The LSM in Child-Pugh C grade patients was significantly higher than that in Child-Pugh B grade patients:(42.3 ± 1.4) kPa vs. (35.1 ± 1.0) kPa, and there was statistical difference (P<0.05). Among the 103 patients with hepatitis-B virus-related cirrhosis, associated ascites was in 49 cases, Child-Pugh B grade was in 10 cases, and Child-Pugh C grade in 39 cases. The LSM in Child-Pugh C grade patients was significantly higher than that in Child-Pugh B grade patients: (40.6 ± 0.9) kPa vs. (33.2 ± 1.5) kPa, and there was statistical difference (P<0.05). Conclusions The LSM values of patients with liver cirrhosis are higher with the elevation of liver function Child-Pugh grade. There is a correlation between LSM values and Child-Pugh scores. The LSM can partly evaluate the severity of liver disease in patients with liver fibrosis.

Objective To determine the transfection of PTEN gene in human ovarian carcinoma SKOV3 cells by ultrasound mediating and contrast agent′s enhancing, and to explore the mechanism of PTEN gene inhibiting the tumor cells′ invasion. Methods After addition of PTEN gene and 5 ?l lipofectamine,human ovarian carcinoma SKOV3 cells on 6-well plates were explored to ultrasound for 60 s in the presence(200 ?l) of ultrasound agent. The invasiveness of transfected cells was measured quantitatively by Matrigel invasion assays(Transwell chamber) after 48 h. Results The invasiveness of SKOV3 cells transfected by ultrasound-mediated PTEN gene was significantly declined compared with that of the controls. Conclusions The transfection of PTEN gene into SKOV3 cell can inhibit their invasion.The gene transfection can be enhanced by ultrasound and contrast agent,which may be expected to be a new means of clinical gene therapy.

According to the Implementing Regulations of Standard Examination for Schistosomiasis Control in Jiangxi Province and the Criteria for Control and Elimination of Schistosomiasis, the endemic situation of schistosomiasis in Nanchang City was assessed by listening reports, checking up data, field survey, ect. Results showed that the indexes of endemic situation for both human and cattle reached the criteria for schistosomiasis control.

Objective To investigate the effect of MicroRNA-9 (miR-9) on cell proliferation and collagen synthesis in hepatic stellate cells (HSCs),and to explore the potential mechanism.Methods HSC-T6 cells were cultured and transfected with miR-9 mimics with lipofectamine 2000.After incubation 48 h,the cells were collected and total proteins and RNAs were extracted.The expression of miR-9 was detected by quantitative real time polymerase chain reaction (qRT-PCR).The protein expression of type Ⅰ collagen and type Ⅲ collagen were measured by Western blot.The methyl thiazolyl tetrazolium (MTT) method was used to asses the proliferation of HSC-T6 cells.The expression of transforming growth factor-β1 receptor 2 (TGFBR2) was detected by qRT-PCR and Western blot.Results Compared to the control group,miR-9 expression in HSCs was increased in the miR-9 mimics group (P ＜ 0.05),type Ⅰ and type Ⅲ collagen protein expression was reduced by (44 ± 2) ％ and (50 ± 3) ％ (P ＜ 0.01),respectively.The proliferation activity of HSCs was decreased by (48 ± 4)％ (P ＜ 0.05).The expression of TGFBR2 was inhibited in the miR-9 mimics group.Conclusions Upregulation of miR-9 plays a role on suppressing cell proliferation and collagen synthesis in HSCs.This process might be mediated by downregulation of TGFBR2.

Objective To investigate the effect of notch signaling pathway on drug resistance and invasiveness of bladder cancer .Methods We observed the changes of growth and morphology of bladder cancer T 24 , 5637 and J82 cells which treated for 48 hours using γ-secretase inhibitor by inverted microscope .The mRNA and protein lev-els of the EMT molecular markers , including E-cadherin , N-cadherin , vimentin and Alpha-smooth muscle actin were examined by RT-PCR and Western blot in bladder cancer cells;Detected the changes of drug resistance and invasion respectively by MTT and Transwell in bladder cancer cells .Results After completely blocking the Notch signaling pathway , the inverted microscope showed that bladder cancer cells became smaller and more disperse ;RT-PCR and Western blot showed the mRNA and protein levels of E-cadherin were up-regulated ( P<0.05 ) , contrast , N-cadherin , vimentin and Alpha-smooth muscle actin were down-regulated ( P<0.05 ); The prolifera-tion of bladder cancer cells were significantly inhibited by MTT test;The number of through microporous membrane cells significantly decreased ( P<0.05 ) shown by Transwell test .Conclusions The Notch signaling pathway is completely blocked that nhibites proliferation and EMT of bladder cancer cells , reduces drug resistance and inva-sion in bladder cancer cells .It suggests that drug resistance and invasiveness of bladder cancer can be changed through EMT which is regulated through notch signaling pathway .

Objective To estimate the clinical effect of fuzhenghuayu capsule in treatment of early hepatocirrhosis by liver instantaneous elastic imaging. Methods Eighty patients with early hepatocirrhosis were divided into experiment group and control group according to the treatment method with 40 cases each. All the patients in 2 groups were given the same antiviral treatment with entecavir dispersible tablets, and the patients in experiment group combined with fuzhenghuayu capsule. All treatment lasted for 6 months. The liver stiffness measurement (LSM) was measured before treatment and 1, 3 and 6 months after treatment by liver instantaneous elasticity imaging. The serum hyaluronic acid was measured, and the Child-Pugh score was evaluated at the same time. Results The LSM, hyaluronic acid and Child-Pugh scores 6 months after treatment in experiment group were significantly lower than those in control group:(19.3 ± 0.9) kPa vs. (29.6 ± 1.3) kPa, (215.6 ± 59.3)μg/L vs. (344.4 ± 39.6)μg/L and (2.1 ± 1.3) scores vs. (3.9 ± 0.9) scores, and there were statistical differences (P<0.05). No obvious adverse reactions related to the use of fuzhenghuayu capsule were found during the course of treatment. Conclusions Liver instantaneous elasticity imaging can be used to evaluate and monitor early hepatocirrhosis. Fuzhenghuayu capsule on patients with early hepatocirrhosis has a certain degree of curative effect.

Background and purpose:Bladder cancer is the most common urological tumor, and its pathogen-esis is still not fully understood. The study was aimed to observe the expressions of key genes in many tumor-associated signaling pathways in normal bladder tissue and bladder carcinoma, and to provide further evidence for the subsequent study of bladder cancer recurrence and metastasis.Methods:Twenty-seven cases of bladder cancer specimens were col-lected, and normal bladder tissues and bladder cancer tissues were distinguished by frozen section. Then, the expressions of 84 genes of cancer-related signaling pathways in bladder cancer tissues and normal bladder tissues were screened by Cancer Pathway Finder PCR Array produced by QIAGEN company.Results:Compared with the normal bladder tissues, the bladder carcinoma tissues had 8 up-regulated genes and 19 down-regulated genes. In this study, the impact of epithe-lial-mesenchymal transition (EMT) signaling pathway was selected as a research direction in which theGSC,KRT14,DSP were up-regulated,SNAI2,SNAI3 were down-regulated. ThereforeGSC,KRT14,DSP,SNAI2 andSNAI3 were chosen as target genes, and verified by qRT-PCR in many examples. The result showed that the expressions ofGSC gene in bladder cancer tissues were up-regulated, but with no statistical significance;KRT14,DSP expressions in bladder cancer were higher than those in normal bladder tissues (P<0.05);SNAI2,SNAI3 expressions in bladder cancer were lower than those in normal bladder tissues (P<0.05), andSNAI3 showed the most obvious expression differences.Conclusion:KRT14,DSP andSNAI3 may play an important role in bladder cancer’s occurrence, development and metastasis.

Preliminary research and partial satellite carrying experiment were firstly carried out,so as to research the technique of environmental control and life support system(ECLSS)of Chinese manned spacecraft.Environmental control and life support sub-system of "Shenzhou" spacecraft were developed subsequently,and the technique of physical/chemical regenerative ECLSS and controlled ecological life support system(CELSS)were also researched gradually.This paper introduced the research and development of ECLSS of Chinese manned spacecraft,and discussed the technical character of ECLSS.

OBJECTIVETo investigate the effect of Pseudomonas quinolone signal (PQS) on the virulence of Pseudomonas aeruginosa.

METHODSPseudomonas aeruginosa strain PAO1 was treated with PQS alone, PQS plus farnesol, or farnesol alone. The transcriptional levels of the regulator gene ExsA and virulence protein gene ExoS of type III secretion system were examined using quantitative real-time PCR, and spectrophotometry was employed to detect pyocyanin production in the bacteria. The adhesion and invasiveness of the treated PAO1 in cultured alveolar epithelial cells A549 were assessed on plate count agar, and their effects on the survival of a mouse model of peritonitis was compared.

RESULTSThe increase or decrease of PQS did not affect the growth of PAO1. Compared with the untreated bacteria, PQS-treated PAO1 showed obviously increased transcription levels of ExsA and ExoS (P<0.01) and pyocyanin production, which was significantly lowered by farnesol (P<0.01). In A549 cell cultures, farnesol-treated PAO1 exhibited significantly lowered adhesion and invasiveness, while PQS-treated PAO1 caused a significantly decreased survival time of mice with peritonitis (P<0.01). Farnesol treatment did not obviously affected ExsA transcription (P>0.05) but caused a significant reduction in the transcriptional level of Exos (P<0.05) in PAO1. PQS showed no significant effect on the adhesion and invasiveness of PAO1 (P<0.05).

CONCLUSIONPQS can maintain the adhesion and invasiveness of Pseudomonas aeruginosa, and in the hosts of the bacteria, PQS concentration is positively correlated with pyocyanin production and hence negatively with the survival time of the hosts.

ADP Ribose Transferases ; genetics ; metabolism ; Animals ; Bacterial Adhesion ; Bacterial Proteins ; genetics ; metabolism ; Bacterial Toxins ; genetics ; metabolism ; Cell Line ; Humans ; Male ; Mice ; Mice, Inbred BALB C ; Peritonitis ; microbiology ; Pseudomonas aeruginosa ; genetics ; metabolism ; pathogenicity ; Quinolones ; pharmacology ; Recombinant Fusion Proteins ; genetics ; metabolism ; Signal Transduction ; Trans-Activators ; genetics ; metabolism ; Transcription, Genetic ; Virulence