Animals ; Forecasting ; Herpesvirus 2, Gallid ; genetics ; physiology ; Marek Disease ; genetics ; metabolism ; virology ; MicroRNAs ; metabolism

Objective: To explore the relationships between blood levels of osteopontin (OPN), brain natriuretic peptide (BNP) and cardiac function in patient with degenerative heart valve disease (DHVD). Methods: Our research included in 2 groups: DHVD group,n=120 relevant patients treated in our hospital from 2013-12 to 2015-02 and Control group,n=30 healthy subjects from physical examination in the same period of time. Based on blood levels of OPN, DHVD patients were further divided into 2 sub-groups as Normal OPN sub-group, the patients with 18.8 ng/ml ≤OPN≤ 30.0 ng/ml,n=35 and High OPN sub-group, the patients with OPN>30.0 ng/ml,n=85. OPN levels at prior treatment (T0) and 3 days (T1), 1 week (T2), 2 weeks (T3) after treatment were compared between DHVD group and Control group; BNP levels, cardiac outcome (CO), cardiac index (CI) and left ventricular ejection fraction (LVEF) were also compared. The relationships between blood levels of OPN, BNP and cardiac function in DHVD patients were studied by Pearson correlation analysis. Results: Compared with Control group at T0 time point, High OPN sub-group showed increased blood levels of OPN and BNP, while decreased CO, CI and LVEF. Compared with Normal OPN sub-group, High OPN sub-group had the higher levels of OPN and BNP at all 4 time points, while lower levels of CO, CI and LVEF. In DHVD group, compared with T0 time point, OPN and BNP levels were decreased at T2 and T3 time points, while CO, CI and LVEF were increased, allP<0.05. Pearson correlation analysis presented that in DHVD patients, blood levels of OPN were positively related to BNP (r=0.936,P=0.00) and negatively related to CO, CI and LVEF (r=-0.869,r=-0.884 andr=-0.858 respectively, allP=0.00). Conclusion: DHVD patients had increased blood level of OPN which is related to BNP level and cardiac function; this might be because of OPN promoting heart valve calciifcation, inlfammatory reaction and myocardial injury. OPN could be used as a reference index for evaluating the cardiac function in DHVD patients.

AIM:To determine the effects of glutamine ( Gln) pretreatment on occludin protein in the rats with intestinal ischemia-reperfusion ( I/R ) injury.METHODS: Male Wistar rats ( n =30 ) were randomly divided into 3 groups (n=10):sham group, I/R group and Gln pretreatment group.The rats in Gln pretreatment group were pretreated with Gln at dose of 1 g? kg-1? d-1 by orogastric route for 7 d, and those in the other 2 groups were pretreated with the same volume of normal saline .Intestinal I/R was induced by 30-min occlusion of the superior mesenteric artery followed by 24 h of reperfusion.After the operation, the levels of IL-10, IL-2, TNF-α, SOD and MDA were measured.The occludin protein was determined by the methods of immunohistochemistry and Western blotting .RESULTS: The occludin protein level in I/R group was significantly lower than that in sham group and Gln group (P<0.05).The levels of MDA and TNF-αin I/R group were significantly higher than those in sham group and Gln group ( P<0.05 ) .The levels of SOD , IL-10 and IL-2 in I/R group were significantly lower than those in sham group and Gln group ( P<0.05 ) .CONCLUSION:Glutamine has a protective effect on occludin protein in intestinal ischemia-reperfusion injury .The mechanism may be rela-ted to oxidative stress response and inflammatory inhibition .

AIM:To determine the effects of glutamine ( Gln) pretreatment on intestinal ischemia-reperfusion (I/R) injury in the rats.METHODS: Thirty male Wistar rats were randomly divided into 3 groups (n=10): sham group, I/R group and Gln pretreatment group .The rats in Gln pretreatment group were pretreated with 1 g· kg -1 · d-1 Gln by orogastric route for 7 d, the rats in the other 2 groups were pretreated with normal saline .Intestinal I/R was induced by 30-min occlusion of the superior mesenteric artery followed by 24 h of reperfusion .After the operation , the plasma endo-toxin, serum D-lactic acid, superoxide dismutase ( SOD) and malondialdehyde ( MDA) levels were measured .The intesti-nal mucosal injury was observed with HE staining and evaluated using Chiu 's scoring.RESULTS: Serum D-lactic acid, endotoxin level , MDA level and Chiu's score in I/R group were significantly higher than those in sham group and Gln group (all P<0.05).Serum SOD activity was significantly lower than that in sham group and Gln group (P<0.05).CON-CLUSION:Glutamine has a protective effect on the intestines during ischemia-reperfusion injury .The mechanism may be related to oxidative stress response .

Objective To investigate the protective effect of glutamine(Gln) pretreatment on intestinal ischemia-reperfusion (I/R) injury and endothelial nitric oxide synthase (eNOS)/nitric oxide (NO) signaling pathway in rat model. Methods Thirty male Wistar rats were randomly divided into three groups(n=10 for each group):sham group, I/R group and Gln group. Animals were pretreated with 1 g/(kg·d)Gln by orogastric route for 7 days in Gln group, and normal saline was given to the other two groups in the same dose. Intestinal I/R was induced by 30 min occlusion of the superior mesenteric artery followed by 24 h of reperfusion. After the operation, the intestinal histopathological changes, the plasma endotoxin level, serum D-lactic acid, eNOS, inducible NOS(iNOS)activity and NO levels were detected by ultraviolet spectrophotometer. The mRNA expressions of myocardial eNOS and iNOS were detected by real-time fluorescence quantitative PCR (RT-PCR). Results After reperfusion, in IR group, extensive epithelial sloughing and mucosal ulceration of villous tips were observed, whereas these findings did not occur in Gln group and sham group. Compared with IR group, the serum NO, eNOS levels and eNOS mRNA expression of intestinal tissue were elevated in Gln group (P<0.01), but the plasma endotoxin level, serum D-lactic acid, serum iNOS and intestinal iNOS mRNA expression decreased in IR group(P<0.05). Conclusion Glutamine pretreatment has protective effects on intestinal ischemia-reperfusion injury in vivo. The mechanism may be related to the inhibition of iNOS expression and the increased expression of eNOS, thereby increasing NO activity.

Objective To investigate the effects of isoliquiritigenin on the invasive ability of human gastric carcinoma SGC7901 cells, and its molecular mechanisms thereof. Methods The logarithmic phase human gastric carcinoma SGC7901 cells were divided into control group (normal cell culture fluid) and isoliquiritigenin group (isoliquiritigenin solu?ble in cell culture fluid, the concentrations were 10, 25, 50 and 100 μmol/L respectively). Each group had four repeated holes. The proliferation of SGC7901 cells were detected with MTT assay after 24 h, 48 h and 72 h of culture. The experimen?tal drug concentration and action time were researched for the subsequent experiments. The in vitro invasion abilities of SGC7901 cells were assessed with Transwell test. The expression levels of MMP9, Akt and P-Akt were detected by Western blot assay. Results The proliferation of SGC7901 cells were inhibited by 10μmol/L isoliquiritigenin, which can be signifi?cantly inhibited by 25, 50 and 100μmol/L isoliquiritigenin in a concentration-dependent and time-dependent manner. The half inhibitory concentrations (IC50) of 24, 48 and 72 h were 52.48, 44.49 and 32.50μmol/L, respectively. Therefore, the 25, 50 and 100μmol/L isoliquiritigenin were selected as the subsequent experimental drug concentration, and 24 h was used as the action time. Compared with the control group (209.75±9.29), the membrane cell number of 25μmol/L (138.50±10.15), 50μmol/L (89.50 ± 16.56) and 100μmol/L (45.00 ± 8.08) decreased gradually (F=267.948,P<0.05). There was no signifi?cant difference in the expression level of Akt protein between four groups (F=1.492). The expression levels of P-Akt and MMP9 were gradually decreased with the increase of the isoliquirigenin concentration (F=359.219 and 431.324,P<0.05). Conclusion Isoliquiritigenin can obviously inhibit invasion ability of SGC7901 cells, which may be related to the down reg?ulation of the signal transduction pathway protein PI3K/Akt and the down steam protein MMP9.

Objective To evaluate the efifcacy of endoscopic Over-The-Scope-Clip system (OTSC) system for the acute iatrogenic digestive tract perforation. Methods To collect 11 cases with digestive tract perforation closed with the OTSC system, including 7cases of gastric perforation, 1 case of duodenal perforation,3 cases of colorectal perforation. Results 11 cases were successfully closed with OTSC system in time, the average time needed for the endoscopic closure is 6~15 min. And the perforation diameter is 0.6~3.7 cm, average diameter is (1.89 ± 0.27) cm. No intraoperative bleeding and delayed hemorrhages, no deaths occurred. Conclusion Endoscopic OTSC system is a successful method for the digestive tract perforation and is worth to popularize.

Objective To explore the diagnosis rate.pathology types and positive rate of cancer cell in spu-tum of early central pulmonary carcinoma in three obstructive signs on chest X ray screened by fiberbromchoscope.Methods 326 cases of three obstructive signs with high risk of lung cancer were screened for central pulmonarycarcinoma by spiral CT.biopsy by fiberbronchoscope and cytological examination of sputum.Results 32 patients were diagnosed with central pulmonary carcinoma,with morbidity of 9.8%.In these patients,21 were confirmed with obstructive pneumonia(65.6%),7 with obstructive atelectasis(21.9%),4 with obstructive emphysema(12.5%);In terms of pathology type,16 cases were defined as squamous cell carcinoma(50.0%),9 as small cell carcinoma(28.1%).3 were as large cell carcinoma(9.4%).2 were as adenocarcinoma(6.3%),1 as admosquamous carci-noma(3.1%),1 as bronchial gland carcinoma(3.1%);cancer cell could be found in sputum of 5 patients of 32 cases,among them,it was found in 3 of 21 patients with obstructive pneumonia(14.3%),1 in 7 patients with ob-structive atelectasis(14.3%),1 in 4 patients with obstructive emphysema(25.0%).Conclusion The prevelance of early central pulmonary carcinoma in three obstructive signs on chest X-ray is 9.815%,in which squamous carci-noma and small-cell carcinoma are common in pathology type.Screening can increase the detection rate of early pul-monary carcinoma.

Adult ; Aged ; Diabetes Mellitus, Type 2 ; etiology ; genetics ; Genetic Predisposition to Disease ; Humans ; Introns ; Middle Aged ; Obesity ; complications ; Polymorphism, Genetic ; Risk ; ras Proteins ; genetics

Objective To investigate the characteristics of microbial isolates and the positive rate from bile cultures taken from obstructive jaundice patients, then compare the antimicrobial sensitivities to guide the rational choice and use of antibiotics. Methods Bile cultures from 322 patients from January 2012 to April 2016 were reviewed. Specimens were obtained from patients that were diagnosed obstructive jaundice. The bile specimens were examined for pathogenic respectively. At the same time, the empirical antibiotics of the 322 cases prior to operation were also analyzed. Results Bile culture was positive in 246 among322 cases, the positive culture rate was 76.40%. A total of 267 pathogens were isolated in bile culture: 208 Gram-negative bacteria, 48 Gram-positive bacteria and 11 fungus. The most common pathogens in all were Escherichia coli (208 strains, 53.18%), Enterococcus faecium (28 strains, 10.49%), Klebsiella pneumoniae (27 strains, 10.11%). The most sensitive antibiotics against Gram-negative bacteria were imipenem and meropenem (with susceptibility rate for 98.08%, respectively). The more sensitive antibiotics against Gram-negative bacteria were efoperazone/sulbactam, amikacin, piperacillin/tazobactam (susceptibility 92.31%, 88.46% and 85.58%). The lowest susceptibility rate of Gram-negative to twelve kings of antimicrobial agents were levofloxacin, andaztreonam (susceptibility 29.81%, 28.37%). The most sensitive antibiotics against Gram-positive bacteria were linezolid, teicoplanin and vancomycin(with susceptibility rate for 100.00%, respectively). The more sensitive antibiotics against Gram-positive bacteria was chloromycrtin (susceptibility 88.89%). The lower susceptibility rate of Gram-positive were levofloxacin (susceptibility 25.00%). 281 cases of patients before surgery empirical use of antimicrobial drugs. Monotherapy was used in 219 cases. The main drug was levofloxacin (86/219), the second was cefoperazone/sulbactam (70/219). The dual therapy was used in 62 cases, the mainly was cefoperazone/sulbactam plus ornidazole or metrornidazole(27/62), the second was levofloxacin plus ornidazole or metrornidazole (12/62). Conclusions Gram negative bacteria were the predominant bile pathogens found in patients with obstructive jaundice. And the most prominent Gram-negative pathogens were Escherichia coli. The sensitive rates of cefoperazone/sulbactam, amikacin and piperacillin/tazobactam were higher, which could be used as the preferred antimicrobial agents. Imipenem and meropenem should remain the last alternative when all other therapies fail or serious infection; The empirical antibiotics's pertinence was not very suitable, levofloxacin's resistance rates in obstructive jaundice was higher. It should be avoided to choose during empirical antimicrobial therapy.