OBJECTIVE:To explore the material features and biocompartibility of stent implantation in treating intrahepatic biliary stricture under ultrasonic guidance.METHODS:The Chinese Journal Full-text Database and Medline were retrieved by the first author using search terms of "intrahepatic biliary stricture,stent,ultrasonic guidance,and biocompartibility" both in Chinese and English.Meta analysis,unrelated papers-er repetitive studies were excluded.After that,21 documents concerning the material features and biocompartibility of stent implantation in treating intrahepatic biliary stricture under ultrasonic guidance were analyzed.RESULTS:Compared with the Previousl surgery,stent implantation exhibited advantages such as small trauma,better curative effect,able to improve life quality and prolong life.Ultrasonic guidance has shown its clinical values during stent implantation because of accurate location,few traumas,low complication and cheap cost.The metal stents were preferred in treating lower ureteral obstruction,which is superior to plastic stents in preventing bacteria,maintaining stent patency and reducing complications.However,due to easy change and cheap cost,the plastic stents are widely used in treating intrahepatic biliary stricture,especially for patients within 3-month survival times.CONCLUSION:Materials of the stents play a key role in influencing the short-and long-term effectiveness in treating intrahepatic biiiary stricture.Accordingly,the suitable stents should be selected prior to implantation according to the sites,degree,type of obstruction,physical state,expected survival time,economical ability,as well as the prognosis to reach the goals of relieving pain and prolonging life.

Objective To discuss the efficacy and safety of insulin aspart 30 injection combined with Akabo Tang (Acarbose tablets)about treatment of patients with type 2 diabetes.Methods 36 cases of type 2 diabetes were selected,by means of insulin aspart 30 combined acarbose tablets treatment,the levels of fasting plasma glucose (FPG)and glycosylated hemoglobin(HbA1c)before and after treatment were observed.Results The levels of fasting plasma glucose were (10.67 ±2.00)mmol/L and (6.76 ±0.47)mmol/L before and after treatment;The levels of HbA1c were (9.54 ±1.90)% and (7.70 ±0.82)% before and after treatment.After treatment,blood glucose and glycated hemoglobin levels in patients were significantly decreased (t =31.920,P <0.05;t =29.624,P <0.05). Conclusion The treatment that insulin aspart 30 injection combines acarbose tablets for type 2 diabetes patients is a safe,effective and convenient option.

OBJECTIVE:To establish the quality standards of processed Sophora japonica.METHODS:Different batches of processed S. japonica products were detected in respect of property,microstructure,TLC,moisture,total ash,acid insoluble ash,extract inspection,content of total flavonoids and rutin. RESULTS:The limit value of test term for S. japonica,stir-baked S. japonica,S. japonica carbon were confirmed. CONCLUSION:Established standard is applicable for the quality control of processed S. japonica.

Objective To investigate the role of fluid therapy in treatment of septic shock in children.Methods A total of 48 pediatric patients with septic shock were enrolled.Twenty-seven patients were treated with volume expansion and 21 patients were treated with fluid resuscitation.There were no differences in use of antibiotics,inotropic and vasoactive agent in two groups.The time needed for haemodynamic stability,occurrence of pulmonary edema.length of PICU stay,and mortality were compared between two groups.Results Compared with volume expansion group,the time needed for haemodynamic stability significantly decreased in fluid resuscitation group ((216.10± 168.13) minutes vs (121.63 ± 75.59) minutes) (P < 0.05). There were no significant difference in occurrence of pulmonary edema between volume expansion group and fluid resuscitation group (14.8% vs 9.5% . P > 0.05) .Compared with volume expansion group,length of PICU stay significantly decreased in fluid resuscitation group ((6.188 ±3.250) days vs (3.944±2.711) days,P < 0.05).Compared with volume expansion group,mortality significantly decreased in fluid resuscitation group (40.7% vs 14.3%,P < 0.05) . Conclusions Rapid fluid resuscitation was associated with early reach of haemodynamic stability,short stay in PICU,improved survival rate and no increase in the risk of complication in pediatric patient with septic shock.

Objective To determine the biological traits and optimal condition for the induction and differentiation of endothelial progenitor cells from peripheral blood in healthy adults. Methods Mononuelear cells were isolated from peripheral blood of healthy adults by Ficoll-density eentrifugation. The isolated ceils were cultured in 1640 medium supplemented with VECF165 and bFGF. The EPC specific surface mark CD34 and KDR were assessed by fluorescence activated cell sorter(FACS)analysis: EPC were characterized as adherent cells double positive for DiL-acLDL uptake and lectin binding by direct fluorescent staining under a hser scanning confocal microscope. EPC migration were assayed by MTr assay. Result The number and migration ability of EPC were increased by VEGFl65 and bFGF. Conclusion Endothelial progenitors cells can be derived from mononuclear cells of peripheral blood at specific conditions.

Objective To observe the effects of ischemic postconditioning (I-postC) on lung injury after limb ischemia reperfusion (LIR) in rats, and to investigate the protective effect and the mechanisms. Methods Twenty-four Wistar rats were divided into three groups:control group (group Control), ischemia-reperfusion group (group IR) and ischemic postcondi?tioning group (group I-postC). Referring to routine method in our department, the model rats underwent 4-hour ischemia and 4-hour reperfusion of hind limbs were made. In group Control, the rubber band around the limb was loose,which did not block the blood flow. Rats in group I-postC were given repeated 3 times of 5 min ischemia-5 min reperfusion, and then did perfusion 4 h before reperfusion. The blood and lung samples were collected for detecting arterial gas of partial pressure of oxygen [p(O2)] and partial pressure of carbon dioxide [p(CO2)]. The plasma and lung tissue levels of malondialdehyde (MDA), superoxide dismutase (SOD) and xanthine oxidase (XOD) were detected. The morphological changes of lung tissue were ob?served under light microscope and electron microscope. Results It was found that after suffering from ischemia-reperfu?sion, levels of p(O2) and p(CO2) decreased significantly. The activity of SOD in plasma and lung tissues decreased, but XOD and MDA increased significantly (P<0.05). With microscope, lung interstitial vascular dilation, infiltration of neutrophils, the width of the alveolar space, alveolar septal thickening and alveolar exudate were found. Compared with IR group, it was found that p(O2) and p(CO2) increased significantly in group I-postC. The activity of SOD in plasma and lung tissues in?creased, but XOD and MDA decreased significantly(P<0.05). The mild damage of pathological changes were found. Conclu?sion Ischemic postconditioning can reduce the lung injury after limb ischemia reperfusion in rats, which may be related to the inhibition of lipid peroxidation.

The endogenous microorganism in paridis rhizoma mainly includes bacteria and fungi,and shows different physiological activities,such as microorganism inhibition and anti-tumor activity. The principal active substance steroid saponin in paridis rhizoma can be generated from the fermentation liquor of some endogenous bacteria,and the chemical structure of vancomycin and progesterone can be transformed by the endophyte. It is supposed that paridis rhizoma may benefit from the attributions of the endogenous bacteria against illness and environment changes. It would also benefit in productivity, transformation and modification of the other active sub-metabolites and compounds in paridis rhizoma. Thus,it is valuable in drug development and source insufficiency alleviation of Chinese medicines through separation,identification,screening and clone of the endogenous microorganism in paridis rhizoma.

Objective:To develop a Q-TRAP LC-MS/MS method for the content determination of militarine, protocatechuic acid and caffeic acid in Bletilla Striata. Methods:A Supelco Discovery C-18 (150 mm × 2. 1 mm, 3 μm) column was used and the mobile phase was acetonitrile-water containing 0. 1% formic acid (v/v) with gradient elution. The flow rate was 0. 25 ml·min-1. Bletilla Striata contrast medicinal materials and Bletilla Striata samples were detected by AB Sciex 4000 Q-MRM scan mode. Results: The content of militarine, protocatechuic acid and caffeic acid in the control herb of Bletilla Striata was 1. 167 5, 0. 062 6 mg·g-1 and 0. 001 0 mg·g-1 , respectively, and that in Bletilla Striata samples was 0. 708 8, 0. 001 1 mg·g-1 and 0. 000 4 mg·g-1 , respec-tively(n=3). Conclusion:The method is simple, accurate and reproducible. It can be used to quantitatively analyze militarine, pro-tocatechuic acid and caffeic acid in Bletilla Striata.

Objective To evaluate the role of mitochondria-mediated apoptosis in hippocampal neurons in sevoflurane anesthesia-induced cognitive dysfunction in aged rats.Methods Sixty healthy male Sprague-Dawley rats,aged 20 months,weighing 550-600 g,were randomly divided into 2 groups (n =30 each) using a random number table:control group (group C) and sevoflurane anesthesia group (group S).Animals inhaled pure oxygen and 3 ％ sevoflurane for 4 h in C and S groups,respectively.Ten rats were chosen at 1 and 6 days after anesthesia and hippocampal tissues were obtained for detection of cell apoptosis and mitochondrial membrane potential (MMP) (using flow cytometry) and expression of cytochrome c (Cyt c) in cytoplasm and activated caspase-3 in hippocampal neurons (by Western blot).The apoptotic rate was calculated.Results Compared with group C,the escape latency was significantly prolonged,the frequency of crossing the original platform,the percentage of time of staying at the original platform quadrant and MMP were decreased,the apoptotic rate was increased,and the expression of activated caspase-3 and Cyt c in cytoplasm was up-regulated in.group S.Conclusion The mechanism by which sevoflurane anesthesia induces cognitive dysfunction is related to the activation of mitochondria-mediated apoptosis in hippocampal neurons of aged rats.

Objective To evaluate the effect of preconditioning with nimodipine on postoperative cognitive dys function of aged rats.Methods Ninety healthy male Sprague-Dawley rats,aged 18 months,weighing 400-500 g,were randomly divided into 3 groups (n =30 each) using a random number table:nimodipine control group (group N),surgery group (group S),and nimodipine + surgery group (N+ S group).In N and N + S groups,nimodipine 1 mg/kg was intraperitoneally injected,while the equal volume of normal saline was given instead in S group.30 min later,group N inhaled pure oxygen for 2 h,and S and N + S groups inhaled 1.8 ％ isoflourane for 2 h when splenectomy was performed.Morris water maze test was performed on 1 day before operation and 1st,3rd and 7th days after operation.After the end of Morris water maze test at 1 day before operation and 1st and 7th days after operation,10 rats were sacrificed and brains were removed and hippocampi were isolated for determination of apoptosis in hippocampal neurons,intracellular [Ca2+] i in cytoplasm,and hippocampal Bcl-2 and Bax mRNA expression and for examination of ultrastructure of hippocampal neurons.Results Compared with the value before administration,the escape latency was significantly prolonged,the frequency of crossing the original platform was decreased,apoptotic rate and [Ca2+]i were increased,Bcl-2 mRNA expression was down-regulated,and Bax mRNA expression and Bax/Bcl-2 mRNA ratio were up-regulated at each time point after operation in S and N + S groups,and no significant changes were found in the parameters mentioned above in N group.Compared with group S,the escape latency was significantly shortened,the frequency of crossing the original platform was inecreased,apoptotic rate and [Ca2+]i were decreased,Bcl-2 mRNA expression was up-regulated,and Bax mRNA expression was down-regulated at each time point after operation in group N + S.Pathological changes were found in S and N + S groups and the damage was severer in S group than in N + S group.Conclusion Nimodepine preconditioning can prevent postoperative cognitive dysfunction of aged rats,and inhibition of calcium overloadinduced apoptosis in hippocampal neurons may be involved in the mechanism.