Objective To investigate the diagnostic value of cystic pilocytic astrocytoma by MRI.Methods MRI features of cysticpilocytic astrocytoma proved pathologically in 26 patients were reviewed retrospectively.The location,morphology and signal characteristics of the tumors were analyzed.Results Among 26 cases the tumors localized in cerebellum(n=20) and cerebrum(n=6).This tumor could be divided into simple cystic and cystic type with node on the wall.Conclusion Cystic pilocytic astrocytoma usually occur in children andadolescents with typical MRI features.MRI features in combination with clinical manifestation,it is possible to diagnose cystic pilocyticastrocytoma correctly before operation.

Objective To understand the distribution and drug resistance dynamic status of common pathogens isolated from neurocranial surgical inpatients to provide a basis for clinically rational use of antimicrobial drugs .Methods A total of 413 strains of pathogenic bacteria isolated from neurocranial surgical inpatients from January 2013 to June 2016 were performed the identifica-tion and drug susceptibility test by using the Compact Vitek-2 automatic bacterial identificantion analyzer and the drug susceptibility test results were analyzed by using the WHONET5 .6 software .Results The commonest pathogenic bacteria were 90 strains of Pseudomonas aeruginosa ,69 strains of Klebsiella pneumonia ,52 strains of Escherichia coli ,50 strains of Acinetobacter baumannii and 37 strains of Staphylococcus Aureus .The common bacteria were resistant to many antibiotic drugs .The detection rate of me-thicillin-resistant Staphylococcus Aureus(MRSA) was 54 .1% ,no vancomycin-resistant Staphylococcus Aureus was found .Conclu-sion Clinicians should concern about the common pathogens and their drug resistance in their department ,rationally select antibac-terial drugs ,increase the curative effect and reduce the occurrence of bacterial drug resistance .

OBJECTIVE:To introduce coordinate localization method as a new pharmaceutical care method to provide reference for rational use of drug in cancer patients. METHODS:The way that clinical pharmacists assisted physicians in prescribing for cancer patients with coordinate localization method was interpreted combining with examples. RESULTS:Coordinate localization method was conducive to rational use of drug in cancer patients and pharmacist’s self- quality construction. CONCLUSION:Coordinate localization method can effectively assist the doctor to prescribe rationally.

AIM:To investigate the effect of piceatannol on the viability, and the abilities of migration and invasion in the prostate cancer cells.METHODS:DU145 cells were treated with piceatannol at different doses (0, 5, 10, 20, 40 and 80 μmol/L) for different time (12, 24, 36 and 48 h) as indicated.The cell viability was assessed by CCK-8 assay.The migration and invasion abilities of the cells were analyzed by wound healing assay and Transwell assay, respectively.The protein levels of p-JAK2 and p-STAT3 were detected by Western blot.RESULTS:Piceatannol dose-dependently decreased the cell viability.After treatment with piceatannol, the abilities of migration and invasion of the cells were significantly inhibited.Moreover, treatment with piceatannol resulted in marked decreases in the protein levels of p-JAK2 and p-STAT3.CONCLUSION:Piceatannol inhibits the viability, migration and invasion of the prostate cancer cells via regulating the JAK2/STAT3 signaling pathway.

AIM: This study was using man-made dipalmitoyl phosphatidylcholine and dimyristoyl phosphatidylglycerol to prepare antisense oligodeoxynucleotide(AsON) anionic liposomes and to investigate the inhibitory effect of an antisense phosphothioate oligodeoxynucleotides(AS-ODNs) liposome targeting BlaR1 mRNA in methicillin-resistant Staphylococcus aureus(MRSA).METHODS: Designed and synthesized AS-ODNs by software.Prepare liposome by thin film-dispersion,lyophilized technique.The appearances of liposomes were observed by transmission electron microscope.The liposomes were purified by centrifuge.The encapsulation efficiencies and the leaking efficiencies were determined by UV methods.The release properties in vitro were determined by agitation in PBS.The total colony forming unit(CFU) was counted.The bacteria growth curve was drawn by microplate reader.RESULTS: The liposomes were in spherical shape with uniform size.The encapsulation efficiency was(77.38)% and the leaking efficiency was(0.18)% after 1 month in lyophilized condition.The liposomes released 60% drug after 24h when incubated in PBS with mild agitation.The AS-ODNs liposome could significantly inhibit the growth of MRSA compared with control group and those AS-ODNs didn't encapsulated in liposome.Liposome encapsulated different concentration AS-ODNs could significantly decrease the CFU of MRSA,which showed a concentration dependent manner(P

Objective To observe and compare the effects of four kinds of anesthetic methods on the revival time,the rate of re-dormant after revival,the total Ketamine's doses and the respiratory status after extubation,and to improve the safety of anesthesia.Method 80 cases of children with palatorrphy were randomly divided into 4 groups: group A(n=20) given Midazolam and Ketamine,group B(n=20) given Fentanyl and Ketamine,group C(n=20) given Isoflurane and Ketamine,and group D(n=20) given Sevoflurane and Ketamine.Results(1) The revival time in group D and group C shortened(D and C

Objective To evaluate the preventive effects of dezocine on postoperative hyperalgesia in patients after remifentanil-based anesthesia.Methods One hundred ASA Ⅰ or Ⅱ patients,aged 20-64,weighing 45-65 kg,undergoing laparoscopic cholecystectomy,were randomly divided into 4 groups ( n =25 each): fentanyl group (group F),low-dose dezocine group (group D1 ),medium-dose dezocine group (group D2 ) and high-dose dezocine group (group D3 ).Anesthesia was induced with midazolam,propofol,remifentanil and cisatracurium.The patients were mechanically ventilated after tracheal intubation.Anesthesia was maintained with target-controlled infusion of remifentanil (target effect-site concentration 4 μg/L), intravenous infusion of propofol 4-6mg· kg-1· h-1 and intermittent intravenous injection of cisatracurium 0.03 mg/kg.Groups D1,D2 and D3 received intramuscular injection of dezocine 0.1,0.2,0.3 mg/kg at 30 min before the end of surgery respectively and group F received intravenous injection of fentanyl 1 μg/kg at 15 min before the end of surgery.The emergence time and extubation time were recorded.Visual analog scale(VAS),Bruggrmann comfort scale(BCS) and sedation and agitation scale (SAS) at immediately,1 h,2 h after emergence from anesthesia (T0,1,2),and the incidence of respiratory depression,nausea and vomiting and urinary retention after extubation were recorded.Results Compared with group F,the emergence time and extubation time were shortened,the incidence of respiratory depression and nausea and vomiting was decreased in groups D1,D2 and D3,VAS score was increased and BCS score was decreased at T0-2 in group D1,VAS score at T0 was increased,while VAS score at T1,2 and SAS score at T0-2 was decreased in groups D2 and D3 ( P ＜ 0.05).Compared with group D2,SAS score was decreased at T0-2,while the incidence of respiratory depression was increased in group D3 ( P ＜ 0.05 ).No patient showed urinary retention in the four groups.Conclusion Intramuscular injection of dezocine 0.2 mg/kg at 30 min before the end of surgery can reduce postoperative hyperalgesia with little side effects in patients after remifentanil-based anesthesia.

Objective To investigate the effect of epidural morphine for analgesia on the number of interstitial cells of Cajal (ICC) in the rabbit colon.Methods Thirty healthy rabbits of either sex,weighing 2.0-2.5 kg,were randomly divided into 2 groups (n =15 each):control group (group C) and morphine group (group M).The animals were anesthetized with iv 20% urethane 4 ml/kg.The epidural analgesia was performed at L3,4 interspace.In group M morphine 9.2 ug· kg-1 · h-1 was infused into the epidural space for 7 consecutive days,while the equal volume of normal saline was infused instead in group C.The characteristics of excrement and constipation were recorded during morphine infusion.Normal saline or Chinese ink mixture 5 ml was administered via a gastric tube inserted through the mouth 1 day after the end of administration.The rabbits were sacrificed 30 min later and laparotomy was performed.The intestinal segment numbered from the pylorus to the ileocecal region of the bowel was removed and the length of the intestinal segment and propelled distance of the ink within the intestinal tract were measured in the tension-free state.The rate of propelled distance was calculated.The proximal and distal colon tissues were taken for measurement of the expression of c-kit (by immunohistochemisty) and ICC count,and stained with haematoxylin and eosin for examination of pathological changes.Results Compared with group C,the incidence of constipation was significantly increased,and the rate of propelled distance,and expression of c-kit and ICC count in proximal colon tissues were decreased at 3-7 days of morphine infusion (P ＜ 0.05),and no significant change was found in the expression of c-kit and ICC count in distal colon tissues in group M (P ＞ 0.05).Conclusion Epidural morphine for analgesia can inhibit the motor function of the intestinal tract in rabbits,and reduction in the number of ICC count in proximal colon is involved in the mechanism.

This article was aimed to study the chemical constituents in Tragopogon porrifolius L. and their activities by pharmacological experiment in order to provide evidences in the further development of the usage of this medical resource. Under the guidance of pharmacological activities screening results, compounds were isolated by repeated silica gel, macroporous resin column chromatography and HPLC. Their structures were identified by means of UV, IR, MS, NMR and other chemical evidences. The results showed that T. porrifolius L. (i.e., n-butanol extraction part) can increase survival time of mice in the oxygen-lacking state (P < 0.05). Two compounds of biological alkaloids, which were identified as 1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (Ⅰ) and adenine (II), were isolated. It was concluded that compound Ⅰ and II were obtained from T. porrifolius L. for the first time.