This article summarizes transforming growth factor-β1 in the primary hepatocellular carcinoma's occurrence and development, and carries on the summary to its possible mechanisms, and explains the research progress and the hot spot at present, then discusses the questions.

Salmonella Derby is recognized as a major human food-borne pathogen causing food poisoning,septicaemia and other symptoms.Meanwhile,it can represent a severe threat to livestock breeding and health.The objective of this review is to summarize novel research progress on epidemic,genomics,pathogenic mechanism of Salmonella Derby for provide reference to related research.

Objective To investigate the expressions and clinical significance of survivin, and lymphatic vessel endothelial hyaluronan receptor 1 ( LYVE-1) in gastric cancers.Methods The expres-sions of survivin and LYVE-1 were detected with streptavidin avidin-peroxidase ( SP) immunohistochemical method in 70 cases of gastric cancers and 50 cases of normal gastric tissues.The relationship between the expressions of survivin and LYVE-1 with the clinicopathological parameters was analyzed.Results The ex-pression rate of survivin was 65.71%(46/70) in gastric cancers, and 6.00% (3/50) in normal gastric tissues, with statistically significant difference between two groups (χ2 =43.048, P <0.01) .The expres-sion of survivin was different in gastric cancers:survivin expression rate was 76.92%in poorly differentia-ted gastric carcinomas, 75.00%in T3 ~T4 gastric carcinomas, 75.61%in the positive lymph node metas-tasis of gastric cancers, and 77.08%in the Ⅲ~Ⅳ gastric cancer tissues; which was significantly higher than the highly differentiated (51.61%), T1 ~T2(38.89%), lymph node-negative (51.72%), andⅠ~Ⅱperiod (40.91%) ( P <0.05).The expression of survivin in gastric cancers was no obvious correlation with the age, gender and tumor site ( P >0.05).The expression rate of LYVE-1 was 32.86%(23/70) in gastric cancers, and 4.00%(2/50) in gastric ulcers, with significant difference between two groups (χ2 =14.726, P <0.01) .The expression of LYVE-1 was different in gastric cancers:LYVE-1 expression rate was 40.38%in T3 ~T4 gastric carcinomas, 46.34%in the positive lymph node metastasis of gastric canc-ers, 41.67% in the Ⅲ ~Ⅳ gastric cancer tissues; which was significantly higher than the T1 ~T2 (11.11%), lymph node-negative (13.79%), andⅠ~Ⅱperiod (13.64%) ( P <0.05).The expres-sion of LYVE-1 in gastric cancers was no obvious correlation with the age, gender, tumor site, and the de-gree of differentiation ( P >0.05 ) .There was a positive correlation between expressions of survivin and LYVE-1 in gastric cancers ( r =0.271, P <0.05).Conclusions Survivin and LYVE-1 were abnormally expressed in gastric cancers with a colose relationships between two parameters.They might play important roles in tumorigenesis and progression of a gastric cancer.

Objective To observe the PML protein expression of hepatocellar carcinoma tissue and cells lines and As 2 O3 regulate its expression .Methods Immunohistochemistry was used to examine the PML protein expression of hepatocellar carcinoma tissue . Western blot analysis were used to observe PML protein expression of hepatocellar carcinoma tissue of 12 cases ,5 hepatocellar car-cinoma cell lines ,such as HuH7 ,HepG2 ,Hep3B ,SMMC-7721 ,MHC97H .Western blot analysis was used to detected the PML pro-tein expression of these hepatocellar carcinoma cell lines after 72-96 h treated with 0 .25 μg/mL of As2 O3 .Results Immunohisch-enmical staining showed that the PML protein was expressed in both cytoplasm and nucleus ,did not well-distributed in hepatocellar carcinoma cells .There was no significant differences of PML protein expressed among differently differentiated stages of hepatocel-lar carcinoma cells .Western blot analysis found that hepatocellar carcinoma tissues of 12 cases with hepatocellar carcinoma ex-pressed PML protein ,and there was significant difference of PML protein expressed among 12 cases suffer with hepatocellar carci-noma .hepatocellar carcinoma cell lines ,such as HuH7 ,HepG2 ,Hep3B ,SMMC-7721 and MHC97H all expressed PML protein ,and there was little difference of PML protein expressed among hepatocellar carcinoma cell lines .The PML protein expression of HuH7 ,HepG2 ,Hep3B ,SMMC-7721 and MHC97H cell after 72-96 h treated with 0 .25 μg/mL of As2O3 significant decreased . Conclusion Hepatocellar carcinoma tissue and cells may express PML protein ,and As2 O3 may regulate this protein expression as well .PML protein may be the target molecule of As2 O3 treating HCC .

Objective To investigate the effectiveness of target-controlled infusion (TCI) of etomidate and remifentanil for endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).Methods Sixtynine ASA Ⅰ or Ⅱ patients of both sexes,aged 35-71 yr,weighing 41-83 kg,scheduled for elective EBUS-TBNA,were randomly divided into 3 groups ( n =23 each).In group Ⅰ,anesthesia was induced with TCI of propofol and iv injection of fentanyl 4 μg/ml,and the target plasma concentration (Cp) of propofol was set at 3-4 μg/ml.In group Ⅱ ,anesthesia was induced with TCI of propofol ( Cp 3-4 μg/ml) and remifentanil ( Cp 5 ng/ml).In group Ⅲ ,anesthesia was induced with TCI of etomidate (Cp 0.3-0.4 μg/ml) and remifentanil (Cp 5 ng/ml).After the patients lost consciousness,laryngeal mask airway was inserted to perform mechanical ventilation.PETCO2 was maintained at 30-40 mm Hg.BIS value was maintained at 40-60.The use of vasoactive agents (perdipine,ephedrine,atropine and esmolol) and occurrence of bucking during operation,emergence time,and the occurrence of nausea and vomiting within 24 h after operation were recorded.Blood samples were collected from the femoral vein at 30 min before induction,at the end of operation and at 24 h after operation for determination of the plasma cortisol concentration.Results The incidence of bucking and nausea and vomiting was significantly lower,the emergence time was significantly shorter,and the number of patients who needed vasoactive agents during operation was significantly smaller in groups Ⅱ and Ⅲ than in group Ⅰ ( P ＜ 0.05).The number of patients who needed vasoactive agents during operation was significantly smaller in group Ⅲ than in group Ⅱ (P ＜0.05).Compared with groups Ⅰ and Ⅱ,the plasma cortisol concentration was significantly decreased at the end of operation in group Ⅲ (P ＜ 0.05).There was no significant difference in the plasma cortisol concentration at each time point between groups Ⅰ and Ⅱ (P＞0.05).Conclusion TCI of etomidate (Cp 0.3-0.4 μg/ml) and remifentanil (Cp 5 ng/ml) can provide satisfactory anesthesia for EBUS-TBNA with few adverse effects.

Objective: Recent studies have suggested that congestive heart failure(CHF) is related to neuroendocrine system and cytokines,and its activation contributes to myocardial remodeling and leads to the development and progression of CHF.Tumour necrosis factor-?(TNF-?) is one of the most important factors.This study intends to establish the animal model of isoproterenol(ISO)-induced CHF in rats and to study the changes of serum TNF-?.Methods:Male SD rats were randomly allocated to the ISO-induced CHF group(n=50) receiving two subcutaneous injections of 170mg ISO per kilogram of body and the healthy control group(n=10) receiving two subcutaneous injections of 0.25ml normal saline.At 18th week,the hemodynamic parameters including HR,LVSP,LVEDP and ?dp/dtmax were assessed.TNF-? in plasma were all detected.Results:Compared with the control group,the LVSP、?dp/dtmax significantly decreased and the HR,LVEDP enlarged notably in CHF group(P

OBJECTIVE:To provide reference for further promoting the rational use of antimicrobial drugs in the rural commu-nity health service stations. METHODS:4 800 prescriptions were collected from 8 community health service stations affiliated to our hospital from Jan. 1,2012 to Dec. 31,2014,the use of antimicrobial drugs in the prescriptions was statistically analyzed and the indicators were compared before and after intervention. RESULTS:The proportion of use of antimicrobial drugs in these com-munity health service stations was decreased from 52.88%in 2012 to 30.38%in 2014;the clinical diagnosis of prescription of anti-microbial drug was mainly respiratory infections;what the most used types of antibacterial drugs was cephalosporins;and the pro-portion of antimicrobial drug of irrational use was decreased from 43.50%(368/846)in 2012 to 22.84%(111/486)in 2014. CON-CLUSIONS:The combination of technique and administrative intervention is remarkable. However,the unreasonable use of antibac-terial drugs still exists. Therefore,related training should be organized,and the proportion of use of antimicrobial drugs should in-cluded in the performance appraisal to further improve the use level of antimicrobial drugs in the rural community health service sta-tions.

A rapid and sensitive method has been developed for the simultaneous determination of four selenium species Se(Ⅵ), Se(Ⅵ), selenomethionine, and Se-methylselenocysteine in Se-enriched yeast by liquid chromatography-hydride generation atomic fluorescence spectrometry (HPLC-HG-AFS). The isolation of the analytes from yeast samples was accomplished by proteaseⅩⅣ and trypsin enzymatic digestion. The target compounds were separated on a PRP-X100 anion exchange column and analyzed by HG-AFS. The mobile phase was 20 mmol/L (NH4)2HPO4. Good linearity was obtained for all the selenium species, with linear correlation coefficients higher than 0. 9996. The LODs of the four species were between 0. 5 and 5. 0 μg/kg. Average recoveries for the four analytes were in the ranges of 82 . 5%-101 . 2%, with intra-and inter-day RSD lower than 8. 6% and 14. 5, respectively. The proposed analytical method is simple, sensitive, with low operation cost, making it applicable for the determination of the selenium species in Se-enriched feeds.

Objective To investigate phenyhexyle isothiocyanate (PHI) modulating histone acetylation and inhibiting Akt signaling pathway in prostate cancer cell line PC3 in vitro. Methods Apoptotic cells were measured by TUNEL assay. Histone acetylated H3, H4 and the Akt protein signaling pathway (Akt, p-Akt, mTOR, p-mTOR, p70S6K and p-p70S6K) were detected by Western blot. Results Apoptotic cells increased after exposure to PHI with concentration dependent. PHI significantly induced an accumulation of histone acetylated H3, H4. The change of Akt, mTOR, p70S6K proteins was not observed. Phosphorylation of Akt (p- Akt), mTOR (p-mTOR) and p70S6K (p-p70S6K) decreased after exposure to PHI for 7 h. Conclusions PHI can induce histone acetylation H3, H4 accumulation. PHI inhibits Akt signaling pathway resulting cell apoptosis. It might be a new anticancer agent.

To investigate the influence of Drynaria total flavonoids on proliferation and apoptosis of osteoblasts in tumor necrosis factor-α (TNF-α)- mediated medium, so as to explore the mechanism of Drynaria total flavonoids in preventing and treating osteoporosis of rheumatoid arthritis.