Intestinal microflora play a significant role in regulating systemic immune function,maintaining the intestinal barrier,and preventing the invasion of external pathogenic bacteria.Recent epidemiological studies and experimental research suggest that the occurrence and development of allergic diseases is associated with the disturbances in the intestinal microflora during early life.Research has been taken to evaluate the prevention and treatment effects in allergic disease of probiotics,which is currently unestablished.

Objective To investigate the relationship between plasma rennin levels in ischemic stroke patients and aspirin-in-duced gastrointestinal bleeding .Methods 50 ischemic stroke cases in neurology department of the Second Affiliated Hospital of Chongqing Medical University from June 2012 to December 2012 were collected and divided into 2 groups depended plasma rennin levels :low rennin group and high rennin group .Low rennin group contained 21 cases and high rennin group containd 29 cases .Ap-pearance of haematemesis ,melena and fecal occult blood were considered as positive identification ,peptic ulcer bleeding in endoscope or death as the endpoint event in 1 year follow-up .Comparison of the incidence of gastrointestinal bleeding between 2 groups was made .Results The average age of patients in low rennin group was higher than that in high rennin group(P<0 .05);blood pres-sure of patients in low rennin group was higher than that of high rennin group(P<0 .05);gastrointestinal bleeding rate of low ren-nin group was higher than that of high rennin group(P>0 .05) .Conclusion Different plasma rennin levels in ischemic stroke pa-tients may be unrelated to aspirin-induced gastrointestinal bleeding .

Objective To analyze the related factors of local recurrence in patients with rectal cancer after Dixon operation. Methods A retrospective analysis of clinical data of 100 patients from September 2005 to September 2007 in our hospital by TME standard surgicai treatment of low rectal cancer was carried out. Results Of 100 patients, the pre-sacral recurrence rate was 10. 0%, with gender, age, tumor size, tunor invasion lumen circumference,depth of invasion,lymph node metastasis and Duke's stage has nothing to do with the gross type,histological type and lumen,peritoneal tumor cell shedding,and as an independent prognostic factor. Of 90 patients without local recurrence,the 5-year survival rate was 76. 0% ,haff of the survival of 62 months;10 cases of local recurrence,5-year survival rate was 5. 0%, half of the survival of 24 months, suggested that local recurrence in patients influenced the prognosis. Conclusion The low local recurrence of rectal cancer related factors were gross type,histological type and the intestine, peritoneal tumor cells shed, seriously affect the prognosis of patients with local recurrence.

OBJECTIVE To study the inhibitory effects of the water extractions from ordinary green tea,black tea,chrysanthemum tea,oolong tea and Puer tea on digestive tract bacteria.METHODS Incubating plate with foveolae was used to study the inhibitory effect on Vibrio parahaemolyticus,Escherichia coli,Salmonella and Shigella with the water extractions of the tea.RESULTS It is showed inhibitory effect on V.parahaemolyticus by the first water extraction from ordinary green tea,black tea,chvysanthemum tea,oolong tea and Puer tea.Same effect was also observed to E.coli,Salmonella and Shigella.The green tea and Puer tea showed best inhibitory effects on V.parahaemolyticus,and the inhibitory zone diameter of the first water extraction of 2.5mg/ml teas were 10.6mm and 12.3mm,respectively.CONCLUSIONS The first water extraction of many kinds of the tea showes inhibitory effects on the digestive bacteria.

Objective To establish an effective cleaning process for automatic spray cleaning machine in case of without water purification system and to reduce the formation of scale on the surface of machine and instruments with increased cleaning degree.Methods Descale process was added to the previons concrete cleaning process.The clean effect Was compared with previous concrete process.The blocking of the pipeline was observed.Results The clean degree by new cleaning process reached 97.23%,which was,better than that of the previous process.The problem of blocking of the pipeline was also solved.Conclusions Addition of descale process when using automatic spray cleaning machine in case of without water purification system could guarantee the clean quality of instruments.

Objective To study the effects of ropivacaine on the duration of labor and mode of delivery in the primigravidas using patient-controlled epidural analgesia (PCEA). Methods Retrospective analysis was performed. The 190 healthy, full-term, and single-fetus parturient primigravidas who received PCEA with 0.1% ropivacaine+fentanyl (1 ?g/ml ) were in the epidural analgesia group. Another 222 primigravidas who didnot receive PCEA were in the control group. The duration of labor and modes of delivery, and the neonatal Apgar scores in both two groups were recorded and evaluated. Results Those in the epidural analgesia group experienced a significantly longer first stage [(426?161) minutes], longer second stage [(54?27) minutes] and longer full duration of delivery [(489?166) minutes] than those in the control one [(409?170) minutes, (364?167) minutes and (37?22) minutes]. The rate of using pitocin in the epidural analgesia group (30.2 %) was significantly higher than that in the control group (4.1%). The cesarean section rate in epidural analgesia group (20.0 %) was lower than that in the control one (28.4%); while the rate of instrumental delivery in the epidural analgesia group (20.0%) was significantly higher than that in the control one (6.3%). In summary, there were significant differences between two groups in the duration of labor, the rate of using pitocin, the rate of instrumental delivery and the rate of cesarean section. But there were no differences found for those newborn who had Apgar scores less than 7 at the point of both one and five minutes (7.9% and 4.5%, 2.6% and 0.5% respectively). Conclusion Epidural ropivacaine labor analgesia lengthens the duration of labor and increases the rate of instrumental delivery, but it has no significant negative effects on the neonates.

Objective To observe the anti-shock effect of rapid infusion of 7.5% sodium chloride(NaCl) in dog with hemorrhagic shock. Methods Five mongrel dogs were bled to mean arterial pressure(MAP) of 5.33～6.70kPa, and this pressure was maintained for 1 hour. Each dog received 7.5% NaCl (4ml/kg) intravenously, the infusion time was 2 min. The observation time was 4 hours. Results During the infusion period, the blood pressure was obviously lower than that of the shock period(P

Objective To study the clinical application value of multi-slice spiral CT iliac venography.Methods The iliac venography with multi-slice spiral CT was performed in 50 cases.150 mgI/ml contrast medium at 2.5～3.0 ml/s was administered via the veins of dorsum of foot and the delayed time was 16～22 s,the images were reconstructed by several methods.The imaging quality and imaging characteristic of iliac vein disease were analyzed.Results Helical CT venography was performed successfully in all patients.Venography showed vein complete occlusion in 31 cases,vessel stenosis or filling defect in 9 cases,normally in 10 cases.The quality of images included:excellent 24%(12/50),good 60%(30/50),bad 16%(8/50),the collectivity was 84%(42/50).Conclusion The multi-slice spiral CT iliac venography is of certain clinical applied value.

Objective To investigate the relationship betwe en low-selenium diet and apoptosis of cardiac myocytes in rats and if melatonin c an have protective effects on the damage. Methods The level of myocardial MDA in rats' was measured a nd apoptosis of cardiac myocytes in rats was detected in the three groups of rat s, fed with low-selenium diet, sufficient-selenium diet and low-selenium diet plus intragastric administration of melatonin, respectively. Results The level of MDA in myocardium was significantly hi gher in low-selenium group than that in sufficient-selenium group and low-sel enium group with intragastric administration of melatonin (P

The efficacy of standard triple therapy for Helicobacter pylori (Hp) eradication has been significantly decreased, or even less than 80%.Abroad studies have shown that Hp eradication rate of sequential therapy is significantly higher than that of triple therapy.At home, we lack a large sample of data analysis to clarify the efficacy of sequential therapy.Aims: To systematically review the efficacy of sequential therapy and triple therapy in Hp eradication at home and abroad.Methods: PubMed, Medline, Embase, Cochrane Library, CNKI, Wanfang, VIP and CBMdisc were retrieved to collect the randomized controlled trials (RCT) comparing sequential therapy and triple therapy in the treatment of Hp infection in last 7 years.Article selection, data extraction and quality evaluation were conducted independently by two reviewers.Meta-analysis was conducted by RevMan 5.3 software.Results: A total of 31 RCT involving 8 371 subjects were included.Meta-analysis showed that Hp eradication rate of sequential therapy was significantly higher than that of triple therapy (83.3% vs.74.7%;RR=1.13, 95% CI: 1.09-1.16).Sixteen domestic studies showed that Hp eradication rate of sequential therapy was significantly higher than that of triple therapy (88.1% vs.78.0%;RR=1.13, 95% CI: 1.10-1.16), fifteen abroad studies showed that Hp eradication rate of sequential therapy was significantly higher than that of triple therapy (79.0% vs.71.8%;RR=1.13, 95% CI: 1.06-1.20).No significant difference in incidence of adverse reactions was found between sequential therapy and triple therapy (20.7% vs.22.0%;RR=0.94, 95% CI: 0.86-1.03).Conclusions: Sequential therapy achieves higher Hp eradication rate than standard triple therapy, and no significant difference in incidence of adverse reactions is found between sequential therapy and triple therapy.Hp eradication rate of sequential therapy is significantly higher than that of triple therapy and is higher than 80% in China, which can be recommended as a Hp eradication supplement of bismuth quadruple therapy.