Objective To explore the feasibility of two-port laparoscopic drainage in the treatment of liver abscess. Methods A total of 18 patients with bacterial hepatic abscess underwent twoport laparoscopic drainage.Two incisions were made at the superior border of the umbilicus and 4～5 cm below the right costal margin near the anterior axillary line,respectively.The abscess was cut through in "┼" or "╫" shape.The pus cavity was debrided bluntly,and a double-lumen drainage tube was placed.Results The laparoscopic drainage was performed successfully in all the 18 patients.The operative duration was 30～75 min(mean,45 min).A bile leakage for 80～100 ml per day occurred in 1 patient.The drainage tube was removed on the 12th postoperative day and the patient was discharged from hospital on the 14th postoperative day.Of the 18 patients,the hospital stay after operation was 7～14 d(mean,8.5 d).All the patients were followed for 5～12 months(mean,9 months) and no residual abscess or recurrence was found. Conclusions Two-port laparoscopic drainage for liver abscess is an ideal approach with advantages of simple manipulation,slight contamination inside abdominal cavity,little trauma,low complication rates,and rapid recovery.

Objective To study the influence and the optimal dosages of Sijunzi Decoction (SJZD) on treating digestive and immune function of mice with Pi-deficiency syndrome (PDS). Methods The experimental model of mice with PDS was induced by rhubarb decoction. Then the mice were treated with three dosages of SJZD (12.5, 25, and 37.5 g/kg), respectively. The body weight, body temperature, mean retention time of chyme in digestive tract, gastric emptying velocity, gastrin and motilin levels, and visceral index of mice were measured. Results Being compared with the normal group, the PDS mice showed a slower growth of body weight and a lower body temperature, a shorter mean retention time of chyme in digestive tract and faster gastric emptying velocity, a lower gastrin content, and a higher motilin content. Also splenic and thymus indexes were found to follow a downtrend in the PDS mice. Three dosages of SJZD showed a restoration effect on the above all indexes, and the high dosage was the most effective one, especially. Conclusion The high dosage (37.5 g/kg) of SJZD possibly is the optimal dosage on treating the digestive and immune diseases of PDS mice.

0.05). However, the scores of belief and attitude of experimental group were higher than those of control group (t=3.03～19.89, P0.05), while the score in control group displayed decreasing trend (t=5.75, P

Objective To explore the effects of Taiji exercise on the psychology and the functions of the autonomic nervous systems of middle aged and elderly people. Methods Two hundred and seven middle aged and elderly Taiji exercisers and 166 age matched non Taiji exercisers were sampled. The Zung Self rating Anxiety Scale(SAS), Zung Self rating Depression Scale (SDS) and autonomic nervous system equilibrium index (ANSEI)were adopted to assess the subjects. Results Compared with those of the control group, the scores of SAS and SDS in Taiji group were significantly higher, and the equilibrium of autonomic nervous systems in Taiji group was also superior. There was no significant difference between the male and the female with regard to SAS, SDS and the equilibrium of autonomic nervous systems within Taiji group. The longer the exercise, the better the equilibrium of autonomic nervous systems. Conclusion Taiji exercise has positive effects on the psychology and the autonomic nervous system of the middle aged and the elderly.

To study the chemical constituents of aerial parts of Laggera pterodonta (DC.) Benth., the air-dried aerial parts of this plant were powered and extracted with boiling water and purified by silica gel column chromatography and recrystallized. Eleven compounds were obtained from L.pterodonta. They were identified as to be 6-O-β-D-glucopyranosyl-carvotanacetone (1), pterodontic acid (2), 1β-hydroxy pterondontic acid (3), pterodontoside A (4), pterodondiol (5), pterodontriol B (6), 5-hydroxy-3,4′,6,7-tetramethoxyflavone (7), artemitin (8), chrysosplenetin B (9), quercetin (10) and β-sitosterol (11). Compound 1 is a new monoterpene glucoside. Compounds 10 and 11 were isolated from this plant for the first time. Compounds 2 and 5 showed moderate activity against bacteria including Staphylococcus aureus, Pseudomonas aeruginosa, Bacillus subtilis, Mycobacteium phlei and Bacillus circulans by paper disc diffusion method, while they both displayed no activity against Escherichia coli.

Objective To establish an HPLC method for determination of pterodontic acid in Lingdancao Soft Capsula. Methods Agilent Zorbax XDB-C18 column (250 mm?4.6 mm, 5 ?m) was used. Acetonitrile-water (60∶40) was used as mobile phase, the detection wavelength was 210 nm, flow rate was 1.0 mL/min, and column temperature was at 25 ℃. Results The linear range of pterodontic acid was 12.91—129.1 ?g/mL (r=0.999 9), the average recovery rate of pterodontic acid was 99.7 %, RSD was 2.0%. Conclusion The method is simple, accurate, and reliable, and it can be used to the quality control of this preparation effectively as a quantitative method.

Objective To investigate the protective effect and mechanism of Astragaloside Ⅳ (AS-Ⅳ) on hypoxia/re-oxygenation induced by RAW264.7 murine macrophages.Methods The hypoxia/re- oxygenation induced RAW264.7 murine macrophages served as a model of I/R injury. The cells were divided into the control group, the model group, and the AS-Ⅳ group. The cell morphological changes of each group were observed directly under inverted microscope. Inducible nitric oxide synthase (iNOS), cluster of differentiation 206 (CD206), and peroxisome proliferator activated receptor-γ (PPAR-γ) were separately examined by RT-PCR, Western blot analysis and immunofluorescence staining.Results Compared with the model group, the numbers of cell in AS-Ⅳ group significantly increased , and the cell physiological status were much better. Compared with the model group, the iNOS immunofluorescence semi quantitative (0.62 ± 0.02 vs. 1.32 ± 0.09), the expression of mRNA (1.51 ± 0.07 vs. 3.46 ± 0.39), and protein (2.30 ± 0.14 vs. 5.16 ± 0.49) significantly reduced in AS-Ⅳ group (P<0.01). The CD206 immunofluorescence semi quantitative (1.01 ± 0.03 vs.0.61 ± 0.01), the expression of mRNA (0.91 ± 0.03 vs.0.51 ± 0.01), and protein (0.61 ± 0.04 vs.0.19 ± 0.01) significantly reduced in AS-Ⅳ group (P<0.01). Compared with the model group, the PPAR-γ immunofluorescence semi quantitative (0.60 ± 0.14 vs. 0.34 ± 0.03), mRNA (2.00 ± 0.14 vs.1.04 ± 0.03), andprotein (0.67 ± 0.05 vs.0.19 ± 0.01) significantly increased (P<0.01). Conclusions The AS-Ⅳ could attenuate ischemia-reperfusion injury by altering macrophages phenotype through upregulation PPAR-γ.

Objective To evaluate the effect of applying emergency care simulator (ECS)on cardiopulmonary resuscitation skill training. Methods Clinical doctors and nurses(n=1 472)received the skill training of unarmed cardiopulmonary resuscitation (CPR),electric defibrillation and tracheal intubation by using simple CPR simulator (n=667)or ECS (n=805)respectively. After training,the examination was carried out and questionnaires were handed out. The completion time of operations, the scores and pass rates of examinations,the evaluations of training methods were compared between the two groups. The statistical data were analyzed by t(t')-test or Chi-square test with SPSS 19.0 and P <0.05 was considered as the criterion of significance. Results Compared with those of group using simple CPR simulator,the group using ECS showed obviously shortened completion time((309±125)s vs. (242±61)s,t'=12.65,P=0.00;(87±36)s vs. (55±31)s,t'=20.28,P=0.00;(239±87)s vs. (145±53),t'=24.4,P=0.00),significantly increased scores ((83.5±14.8)vs. (90.2±17.6), t'=7.93,P=0.00;(84.7±19.3)vs. (92.1±21.5),t'=6.95,P=0.00;(81.6±15.3)vs. (89.6±13.5), t'=10.53,P=0.00)and pass rates of examinations (84.1%(561/667)vs. 92.5%(745/805),χ2=25.96, P<0.01;82.2%(548/667)vs. 91.2%(734/805),χ2=26.41,P<0.01;80.8%(539/667)vs. 91.4%(736/805),χ2=35.48,P<0.01)as well as higher evaluation of training methods. Conclusions Application of ECS can obviously improve the training effect of CPR and it can be widely popularized in the edu-cation and training of emergency medicine skills.

Objective: To better understand homing potentiality of hematopoietic stem cells (HSC) in human umbilial cord blood (UCB) and the mechanism of dextran sulfate (DS) mobilization. Methods: Sub lethally irradiated or DS pretreated severe combined immunodeficient (SCID) mice were transplanted with UCB, which was cryopreserved at -80℃.Human cells in recipient mice were detected by flow cytometry and CFU GM assay from each host organ. Results: In contrast with the controls, engraftment after irradiation or administration of DS resulted in a higher percentage of CD45 +,CD34 +,CD19 + cells produced in SCID mice. While comparison between the experimental groups, higher implantation level was obtained in the former if equivalent donor cells were used in both groups. Conclusion:DS is a safe and effective pretreatment, which can mobilize HSC, but also vocate niches for transplanted HSC homing. [