Bile leak is a commonly complication after biliary tract surgery.In the past,operation was considered priorly to deal with bile leak besides putting a drainage tube in advance.Minimally invasive surgery has gradually become a primary management of bile leak,with the development of minimally invasive surgery such as abdominoscope in the 20th century.

Objective To explore the self efficacy of newly-contracted nurses in a tumor hospital in Guangzhou and to find out the related factors. Methods By convenience, cluster sampling method, 333 newly-contracted nurses from a tumor hospital in Guangzhou were recruited in the study. The general self-efficacy scale (GSES) and a self-designed demographic questionnaire were used to look into their self-efficacy and explore the related factors. Results The average score of self efficacy was (2.67 ± 0.41). The level of self-efficacy was related to education and the type of hospital for internship. Nurse with bachalor degree and graduated from comprehensive hospital had higher self-efficacy. Conclusions The self efficacy of the newly contracted nurses is intermediate. The education level and the type of hospital for internship both influence the level of self efficacy. The special hospitals should strengthen the teaching and training of students and lay stress on developing their capacity to prepare them for the job.

To explore the effects and mechanisms of combining astragaloside IV (the effective component of Astragalus membranaceus) with notoginsenoside R1, ginsenoside Rb1 and ginsenoside Rg1 (the effective components of Panax notoginseng) against oxidative injury in PC12 cells induced by cobalt chloride (CoCl₂).

Objective To establish a HPLC method for determination of geniposide content in Qingkailing Capsule. Methods HPLC with Gracesmart C18 was used and detection wavelength was 238 nm with acetonitrile-water (15∶85) as mobile phase. The flow rate was 1.0 mL/min. Results The standard curve was linear over the range of 0.060 4～0.302 0 ?g (r=0.999 8). The average recovery was 98.73%, and RSD was 1.61%. Conclusion This method is reliable, accurate and suitable for the determination of geniposide in Qingkailing Capsule.

Objective To investigate the relationship between hepatitis B virus reactivation and the level of blood T-lymphocyte subsets.Methods T lymphocyte subsets ( CD3,CD4,CDs ),CD4/CDs level of 40 patients with chronic carriers of hepatitis B virus and 35 patients with hepatitis B virus re-activation were detected by Flow cytometry(Epics XL).Results The hepatitis B virus reactivation in patients with CD3,CD4 and CD4/CDs levels were significantly lower than the chronic hepatitis B virus carriers,The difference between the two groups patients was significant[(71.31 ±5.20)％ vs (68.57 ±6.10)％,(37.82 ±4.90)％ vs (32.12 ±5.93)％,(1.37 ±0.28) vs (1.18 ±0.43 ),all P ＜ 0.05].Conclusion The levels of CD3,CD4 and CD4/CD8 ratio were significantly declined,it may be the one important reason of hepatitis B virus reactivation.

Objective To determine the median effective doae (ED50) for motor block after intrathecal ropivacaine and bupivacaine. Methods Sixty ASA Ⅰ or Ⅱ patients, aged 18-64, weighing 46-75 kg, undergoing elective urological surgery under combined spinal-epidural anesthesia, were randomized into 2 groups ( n = 30each) receiving intrathecal 0.5% ropivacaine and 0.5% bupivacaine respectively. The ED50 was determined by up-down sequential allocation. The initial dose was 4 mg. Each time the dose increased/decreased by 1 mg. Efficacy was determined by the occurrence of any motor block in either lower extremity (modified Bromage scale > 0)within 5 or 10 min after the spinal injection. Results The intrathecal ED50 for motor block was 6.68 mg for ropivacaine (95% confidence interval 6.27-7.13 mg) and 4.07 mg for bupivacaine (95% confidence interval 3.56-4.47mg) . The relative motor blocking potency ratio was ropivacaine/bupivacaine 0.61. Conclusion The potency of intrathecal ropivacaine is lower than that of bupivacaine for motor block.

BACKGROUND: It is a new tendency to treat central nervous system injury or tumor therapy using the combination of seed cells and gene therapy.OBJECTIVE: To observe the dose-relationship between transfection and expression of rabbit bone marrow mesenchymal stem cell (BMSCs) with adenovirus vector carrying green fluorescent protein (Ad-GFP), and to study its effects on cell biological properties, in addition, to explore the feasibility of using Ad-GFP vector to construct gene modified BMSCs.DESIGN, TIME AND SETTING: A randomized grouping, contrast observation. The experiment was performed at the Southern Medical University between August 2008 and March 2009.MATERIALS: New Zealand white rabbits, irrespective of genders, weighing 2.0-3.0 kg, were selected.METHODS: BMSCs were separated and cultured in vitro, and then the cell immunophenotypes were detected by flow cytometry.The adenovirus was obtained by packaging 293 cells and was used to transfect BMSCs with various liters (1 ×-10~3-1×10~(10) PFU/mL).Cytometry was used to analyze the transfection efficiency.MAIN OUTCOME MEASURES: Cell morphological changes were detected under an invert microscope. The cell proliferation was detected by CCK8 kits. BMSCs transfected with Ad-GFP were induced differentiating into neuron-like cells by adding of β-mercaptoethanol.RESULTS: The surface markers of 3-6-generation BMSCs were negative to CD34 and CD45, but positive for CD29 and CD44.When the virus titers were 1 ×10~7 PFU/mL, the transfection rate was 55%, which were 85% when the virus titers were 1 ×10~9 and1×10~(10) PFU/mL. However, cell pathology phenomenon occurred when the virus titer was 1 ×10~(10) PFU/mL. The fluorescence was strongest expressed at day 7, and it still can be seen at day 28. The BMSCs trasfected with Ad-GFP could differentiate into neuron-like cells under induction of p-mercaptoethanol, with positive neuron-specific enolase.CONCLUSION: Ad-GFP with suitable titers can infect BMSCs effectively with little influence on the biology property or differentiation function. BMSCs can serve as seeds cell in gene therapy field when utilizing ad-GFP vector system.

Objective To explore the changes ofT lymphocyte subsets CD3+,CD4+,CD8+ in hepatitis B reactivation after chemotherapy.Methods Flow cytometry was used to detect T lymphocyte subsets of 32 patients with hepatitis B reactivation before and after chemotherapy.In addition,25 patients without hepatitis B reactivition were chosen as control group.Results After chemotherapy,the percentage of CD3+ and CD4+ T lymphocytes and the ratio of CD4+/CDs+ were significantly reduced than those before chemotherapy (P ＜ 0.05).However,the percentage of CD8+ T lymphocytes was not significantly changed(P ＞ 0.05).Conclusion The chemotherapy can change the number and ratio of T lymphocyte subsets,the inhibition of the cellular immune function is one of the reason of hepatitis B virus reactivation.

Objective The purpose was to describe the outcomes and characteristics of the obstetric patients with concurrent eclampsia and hemolysis, elevated liver enzymes, and low platelets syndrome (HELLP) syndrome. Methods We retrospectively collected the materials between December 1999 and December 2008 in Obstetric Critical Care Center of Guangzhou. There were 76 patients in rolled then they were divided into two groups according to with or without HELLP syndrome. All the patients were injected Magnesium Sulfate to control seizure and to prevent the recurring of seizure. We analyzed the characteristics (such as age, gestational weeks, blood pressure after seizure), complications, biochemistry markers, the rate for intensive care unit (ICU) admittion, the need for mechanical ventilation, the Glasgow coma score (GCS) when admitted into ICU, computed tomography scan (CT) or magnetic resonance imaging (MRI),death rate of maternal and others, then compared between the two groups. Results ( 1 ) General data:There were 17 patients admitted with both eclampsia and HELLP syndrome, and 59 patients admitted eclampsia without HELLP syndrome. The incidence of eclampsia with HELLP syndrome was 22% (17/76).In eclampsia with HELLP syndrome group, the systolic blood pressure was higher and the rate of preterm also was higher [ (182 ± 20) mm Hg (1 mm Hg=0. 133 kPa)vs. (159± 21 ) mm Hg, P ＜ 0. 05 ]. But in regard to the age, gestational weeks, the rate of regular prenatal care and diastolic blood pressure, there were no differences between the two groups. (2) Biochemistry markers: the aspartate transaminase (AST), lanine transaminase (ALT), blood urea nitrogen and creatinine were significantly increased in eclampsia with HELLP syndrome group than eclampsia without HELLP syndrome group [ (879 ± 337) U/L vs. (90 ± 27)U/L, (344 ±83) U/Lvs. (43 ±11)U/L, (2245 ±294) U/L vs. (485 ±61)U/L, (14 ±9) mmol/L vs.(7 ± 3) mmol/L, ( 140 ± 92) μmol/L vs. (83 ± 28 ) μmol/L, P ＜ 0. 01, P ＜ 0. 05 ], and the platelet was lower in eclampsia with HELLP syndrome group [ (38 ± 13) × 109/L vs ( 172 ±46) × 109/L, P ＜0. 01 ].(3) Clinical outcomes: The maternal death rate was 35% (6/17) in eclampsia with HELLP syndrome patients, and significantly higher than the rate in eclampsia without HELLP syndrome group (3%, 2/59)(P ＜ 0. 05 ). There were more patients admitted to ICU and more patients who need mechanical ventilation in eclampsia with HELLP syndrome (13/17 vs. 34%, 9/17 vs. 24/, P ＜0. 05), also more patients with GCS ≤8 in eclampsia with HELLP syndrome when admitted to ICU ( 8/17 vs. 7/59, P ＜ 0. 05 ), compared to the eclampsia without HELLP syndrome group. There were more patients complicated with cerebral venous thrombosis and cerebral hemorrhage in eclampsia with HELLP syndrome group than other group (8/17 vs.7%, P ＜ 0. 05 ). Five of six patients died of cerebral hemorrhage in eclampsia with HELLP syndrome group,while other two missing cases in eclampsia without HELLP syndrome group all died of cerebral hemorrhage.The all missing cases were performed CT or MRI and seven (7/8) of them showed cerebral hemorrhage.Conclusion The incidence of concurrent eclampsia and HELLP syndrome was not rare, it happened seriously and with more mortalities, such as cerebral hemorrhage, and also the maternal mortality rate was significantly higher. It should be warning that the obstetrician should take great attention for these women,and consider life support treatment for them.

Objective To prepare the flurbiprofen orally disintegrating tablets and establish the procedures of controlling the quality.Methods Flurbiprofen orally disintegrating tablets was prepared by wet granulation and it content was determined by HPLC.Results The obtained tablets were fine in the shape and smooth in the surface.Their hardness was 2 kg,the disintegrating time was about 30 s.The linear correlation was in a range of 1.0-10.0 ?g/ml,r=0.999 9.The average recovery was 99.32%,RSD=1.09%(n=7).Conclusion Our methods of flurbiprofen orally disintegrating tablets are simple and feasible in preparation and quality control.