Objective To investigate the expression of matrix metalloproteinase 7(MMP7)in paraquat(PQ)?induced pulmonary fibrosis in rats. Methods Forty?eight SD rats were randomly divided into the control group and the pulmonary fibrosis model group(PQ model group),each group of twenty?four rats. Rats in the PQ model group received single intraperitoneal injection of 4 mg/mL PQ dilute solution and the control group were in?traperitoneal injected with the same dose of saline. Eight rats of each group were sacrificed on day 7,day14 and day 28 respectively. The pathological changes of lung tissues were observed and the hydroxyproline(HYP)content in lung tissues was determined. The severity of pulmonary fibrosis was observed. The expressions of MMP7 in lungs were observed by immunohistochemistry. Results The observation of general state of the experimental animals showed that except one rat died at day 28 d,all other rats survived to the end point of observation. After intraperitoneal injection with PQ,the weight of rats in the PQ model group gradually declined,and then increased around day 14,yet still much lower than that in the control group at day 28(P<0.05). After intraperitoneal injection with PQ,the pulmonary index in the model group increased gradually and then decreased after reach?ing the peak on day 14. The content of HYP in rat lung tissues in the PQ model group was remarkably higher than in the control group at day 7,day 14,and day 28,with statistical significance(P<0.01). In the PQ model group,the content of HYP was significantly up?regulated with the extension of infected time and reached the peak value at day 28. The results of HE staining showed significant pulmonary alveolitis at day 7,hyperplasia of abundant collagen fibers in alveolar septum at day 14,and obvious pulmonary fibrosis and collapse of alveolar structure on day 28 in the lung tissues of the PQ model group. A weak expression of MMP7 was measured in the lung tissues in the control group and the expression of MMP7 was higher in the PQ model group than in the control group at day 7,day 14,and day 28,with statistical significance(P<0.05). Conclusion Paraquat poison?ing was mainly manifested in inflammatory reactions of lung tissues in the early stage together with increase of fibroblasts and mainly in fibrosis in the late stage. The expression of MMP7was increased along with the severity of pulmonary alveolitis or fibrosis and showed significant changes compared to the control group at day 28 after poisoning,indicating that MMP7may be the marker of paraquat?induced pulmonary fibrosis.

OBJECTIVE: To provide medical staff with medication information concerning compatibility of hospital injections.METHODS: Based on the "Junwei No.1" hospital information system,a database system comprising system maintenance,information maintenance and comprehensive inquiry that can provide information of compatibility of hospital injections was developed through setting up database and sorting the information of hospital injections.RESULTS & CONCLUSIONS: This system is characterized by low cost,high transferability,friendly user interface,flexible inquiry and convenient maintenance,and it can facilitate medical staff's convenient,quick and accurate mastering of the information of hospital injections so as to provide better service for the patients.

0.05).Conclusion:So-fastTM can greatly improve the penetration of PS-ODN into S.mutans and can be used as appropriate delivery system of PS-ODN for S.mutans. No matter what approaches were adopted, the uptake rate reached the maximum at 5 ?mol/L and 2 h-exposure. The penetration can not be enhanced by increasing the PS-ODN concentration and the transformation time.

OBJECTIVE:To analyze one case of pericardial pain induced by drug combination of omeprazole so as to provide reference for drug combination in the clinic. METHODS:A 79-year-old male patient was admitted because of stage Ⅲ hypertension,coronary heart disease,acute attack of chronic bronchitis in Dec. 2 of 2009. He was treated with omeprazole and pericardial pain was observed during treatment. ADR caused by omeprazole were put forward in the clinic. RESULTS & CONCLUSION: Omeprazole combined with other drugs can easily cause ADR for example,pericardial pain. The universality of ADR induced by drug combination of omeprazole should be further confirmed because of limited sample.

AIM: To observe the efficacy of ondansetron by intravenous injection at different time in preventing nausea and vomiting after pediatric strabismus surgery.METHODS: Totally 90 children aged 3 - 11y were randomly selected for pediatric strabismus surgery from June 2013 to August 2013 in our hospital. The ASA grade of all children were Ⅰ - II. Children were randomly divided into three groups with 30 cases each. Group A received intravenous drip of ondansetron 0. 1mg/kg before surgery. Group B received intravenous drip of ondansetron 0. 1mg/kg after surgery. Group C as control group was not given ondansetron. The number and severity of nausea and vomiting were observed within 24h after surgery.
RESULTS: There were no statistical significance in patients' gender, weight, age, duration of anesthesia, ketamine dosage and vital signs intraoperative between the three groups ( P > 0. 05 ). The incidence rate of postoperative nausea and vomiting ( PONV) of group A and B were significantly lower than group C (P<0. 05). The incidence rate of PONV of group A and group B have no significant difference (P>0. 05).
CONCLUSION:Using ondansetron is effective and safe in preventing PONV before and at the end of the pediatric strabismus surgery, which can also improve safety and be lower cost. It is a worthy promoting antiemetic approach for eye surgery.

BACKGROUND: Monoamine hypothesis has been demonstrated by researches. However, the correlation between the metabolite of plasma monoamine neurotransmitter and anti-depression treatment in patients with depression has less been reported.OBJECTIVE: To study the effect of different drugs on metabolite of plaama monoamine neurotransmitter, and the correlation between the metabolite of plasma monoamine neurotransmitter and anti-depression treatment in patients with depression.DESIGN: Case controlled study.SETTING: Neurological Department and Brain Institute of Nanjing Medical University.PARTICIPANTS: Forty patients with depression hospitalized in Nanjing Brain Hospital (depression group) were diagnosed with the second revised edition of China classification of mental diseases(CCMD-2) and the tenth edition of International classification of diseases. And the total score of Hanmilton rating scale for depression(HAMD) was more than 17. Healthy voluntary blood donators in the control group were from Nanjing Municipal Central Blood Station( n = 20).INTERVENTIONS: Antidepressant was used in the depression for 4 weeks: fluoxetine 20 mg per day; 5-serotonin selective reuptake inhibitor (SSRI) paroxetine 20 mg per day; venlafaxime 50- 100 mg per day;5-serotonin and morepinephrine selective reuptake inhibitor(SNRI) fluvoxamine 50-100 mg per day. High performance liquid chromatograpy(HPLC)was used to measure the level of metabolite of plasma monoamine neurotransmitter in patients with depression before and 42 week after treatment, and the HAMD was used to evaluate clinical effect of the patients.MAIN OUTCOME MEASURES: The levels of metabolites of plasma monoamine neurotransmitters in patients with depression: 5-hydroxyindoleace tic acid(5-HIAA), 3-methoxy-4-hydroxyphenylglycol(MHPG) and homovani llic acid(HVA) were measured before and 4th week after treatment.RESULTS: The levels of 5-HIAA, MHPG and HVA of the metabolites of plasma monoamine neurotransmitters in patients with depression before treatment [ (20.3±14.6), (124.8±103.6), (54.7±32.1) μg/L] were all lower than those in the normal control group[ (39.5±28.4), (334.5 ±107.3), (88.5±37.2) μg/L], with statistically significant differences (P＜0.05). After SSRI treatment, the 5-HIAA content[ (37.1±21.9)μg/L]was significantly increased as compared with that before treatment, whose difference indicated significant meaning ( P＜0.05), but the differences in MHPG and HVA had no significant meaning as compared with those before treatment(P＞0.05) . After SNRI treatment, 5-HIAA and MHPG contents [(35.4±25.2 ), (291.2±120.4) μg/L] both were significantly increased, which indicated significant difference as compared with those before treatment( P＜0.05); but HVA level had no significant changes.CONCLUSION:'The peripheral neurotransmitter metabolites in plasma can reflect their states in brain. The change of neurotransmitter metabolite in plasma can be regarded as an important reference index for the evaluation of depression.

Objective To induce adipose-derived mesenchymal stem cells (ADMSCs) differentiation into cardiomyocytes, so as to provide stem cells for myocardial regeneration.Method ADMSCs were isolated and cultured from adult adipose tissue in vitro.They were induced with 10μmol/L 5-azacytidine (5Aza) for 24h.At the 7th, 14th, 21st days after induction, the expression of α-sarcomeric actin, and myosin heavy chain were repeatedly detected by immunocytochemistry.The expression of ANP was detected by RT-PCR.Results At the 7th day after induction, there was no expression of α-sarcomeric actin and MHC.At the 14th day, there was a little expression of α-sarcomeric actin and MHC that could be seen in cells.At the 21st day, there was increased expression of α-sarcomeric and MHC, and the expression of ANP was positive results detected by RT-PCR.Conclusions 5-Aza can induced ADMSCs to differentiate into cardiomyocytes.ADMSCs might be a potential source of cell transplantation for myocardial.

Objective To compare the values of a screening methods by OC-Hemodia and chemical fecal occult blood test (COB) for colorectal cancer in elderly people. Methods The screening programme targeted colorectal cancer in old people was conducted on 1 100 participants aged 60-92 years (mean was 81.3 years). All subjects received OC-Hemodia and COB examinations. Positive subjects were examined by colonoscopy and/or barium enema. Out of 1 100 subjects 1 046 were followed up in the next five years. Results Among 1 100 subjects, 231 subjects (21.0%) were positive by OC-Hemodia test and 159 subjects (14.5%) were positive by COB. There was a significant difference in positive rate between OC-Hemodia test and COB (P

OBJECTIVE:To study the ex vivo adsorption of montmorillonite powder to ofloxacin.METHODS:Different dosages of ofloxacin and montmorillonite powder were mixed with artificial gastric juice and artificial intestinal juice,respec?tively,which were filtrated after warmed at(37?0.5)℃in water bath for1hour,the content changes of ofloxacin were de?termined by ultraviolet spectrometry.RESULTS:The adsorption rates of montmorillonite powder to ofloxacin in artificial gastric juice and in artificial intestinal juice were(99.76?0.01)%and(99.55?0.02)%,respectively.CONCLUSIONS:Montmorillonite powder has strong adsorption to ofloxacin in both artificial gastric juice and artificial intestinal juice,there?fore,which should not be administered simultaneously in the clinic.

BACKGROUND:Bone tissue transplantation or osteogenic material fil ing is after used for bone defect repair. To remove autologous bone tissues can lead to additional damage and secondary deformity, therefore, it is extremely urgent to search for a new osteogenic material. OBJECTIVE:To construct the porousβ-tricalcium phosphate (β-TCP)/col agen scaffold modified with human bone morphogenetic protein 2 (hBMP2) gene, and to observe its effects on differentiation of MC3T3-E1 cel lines. METHODS:The porousβ-TCP/col agen scaffold modified with hBMP2 gene was prepared. Then in vitro culture system of MC3T3-E1 cel lines with composite scaffold was established. There were scaffold and plate groups, and each group was divided into two subgroups according to the different concentrations of plasmid. Samples were col ected and observed morphological y by scanning electron microscope and light microscope after complex culture. After 1, 3, 7 and 14 days of induction, calcium nodules were observed through alizarin red staining, the cel cycle was detected by real-time PCR, and expressions ofαI-chain col agen type I gene, Osterix and bone sialoprotein were observed. RESULTS AND CONCLUSION:The number of cel s adhered, differentated and distributed on the composite scaffold was significantly higher than that of the single scaffold (P<0.05). Alizarin red staining and real-time PCR detection showed that the osteogenesis ability of MC3T3-E1 cel lines in the scaffold group was stronger than that in the plate group. To conclude, the porousβ-TCP/col agen scaffold modified with hBMP2 gene is an appropriate candidate for bone defect repair.