Objective To investigate the clinical efficacy of three-dimensional (3D) and two-dimensional (2D) laparoscopic surgeries in the treatment of Todani type Ⅰ choledochal cyst.Methods The retrospective cohort study was conducted.The clinical data of 59 patients with Todani type Ⅰ choledochal cyst who were admitted to the People's Hospital of Hunan Province between January 2013 and January 2016 were collected.Thirty patients undergoing 2D laparoscopic surgery between January 2013 and June 2014 were allocated into the 2D group and 29 patients undergoing 3D laparoscopic surgery between July 2014 and January 2016 were allocated into the 3D group.There were the same Trocar placement and surgical procedure in the 2 groups,and surgical procedure completely followed the treatment principle of Todani type Ⅰ choledochal cyst.Observation indicators included (Ⅰ) surgical situations:conversion to open surgery,operation time,volume of intraoperative blood loss,(2) postoperative situations:postoperative complications,(3) follow-up.Patients were followed up by outpatient examination or telephone interview to detect postoperative recovery up to April 30,2016.Measurement data with skewed distribution were presented as M (range) and analyzed using the Mann-Whitney U test.Count data were compared by Fisher exact probability.Results (1) Surgical situations:patients in the 2 groups underwent laparoscopic choledochal cystectomy + Roux-en-Y hepaticojejunostomy.Two patients in the 2D group received conversion to open surgery and patients in the 3D group received the successful surgery without conversion to open surgery.Rate of conversion to open surgery in the 2D and 3D groups were 6.7％ (2/30) and 0,respectively,with no statistically significant difference (P ＞ 0.05).Operation time in the 2D and 3D groups were 285 minutes (range,240-390 minutes) and 190 minutes (range,140-215 minutes),with a statistically significant difference (U =40.0,P ＜ 0.05).Volume of intraoperative blood loss in the 2D and 3D groups were 50 mL (range,10-300mL) and 45 mL (range,20-250 mL),with no statistically significant difference (U =1 018.5,P ＞ 0.05).(2)Postoperative situations:patients in the 2 groups had good recovery,without occurrence of severe complications in Clavien-Dindo≥ Ⅲ stage.Four and 1 patients in the 2D and 3D groups were complicated with bile leakage (in Ⅱ stage of Clavien-Dindo) and 1 and 1 were complicated with upper gastrointestinal hemorrhage (in]][stage of Clavien-Dindo),respectively,with no statistically significant difference (P ＞ 0.05).Overall incidence of complications in the 2D and 3D groups were 16.7％ (5/30) and 10.3％ (3/29),with no statistically significant difference (P ＞ 0.05).All the patients were cured by conservative treatment.(3) Follow-up:59 patients were followed up for 5-36 months,with good recovery and without occurrence of reflux cholangitis,hepatic and intestinal anastomosis stenosis and reoperation.Conclusions 3D and 2D laparoscopic surgeries are safe and effective for Todani type Ⅰ choledochal cyst.Compared with 2D laparoscopic surgery,3D laparoscopic surgery can reduce the operation time and not increase the complications,and it should be discreetly promoted based on the experiences of surgeons.

The M and NP genes of H5N1 avian influenza virus (A/chicken/Hubei/489/2004) were amplified by RT-PCR from viral RNA,and cloned into pMD 18-T vector respectively.The expression plasmid containing the M gene (pHM6-m) or the NP gene (pHM6-np) was then constructed by inserting the M or NP gene into the pHM6 eukaryote expression vector; the constructed plasmid was then sequenced.32 BALB/c mice (6-week-old) were divided into four groups at random.Three groups of BALB/c mice were inoculated one time the intramuscular route with either 30 μg of plasmid pHM6-m,30 μg of plasmid pHM6-np or the mixture of plasmid pHM6-m (15 μg ) and pHM6-np(15 μg) respectively.A additional group of mice were injected with 100 μ1 PBS as controls.Two weeks later,all mice were challenged with homologous H5N1 avian influenza virus,and observed in the following 12 days.The survival rates of mice in the pHM6-m group,the pHM6-np group and mixed plasmids group were 62.5% ,25.0% and 50.0%,respectively.Results showed that effective protection could be provided by either pHM6-m or pHM6-np,but pHM6-m provided a better protective effect than pHM6-np.

AIM: To analyze the effect of pigment epithelium derived factor (PEDF) on nitrogen monoxide (NO) and expression of cysteine-containing, aspartate-specific proteases-3 (caspase-3) in retinal tissues of model rats with optic nerve crush injury.METHODS: A total of 60 SD rats were randomly divided into the blank control group, model group and PEDF group, with 20 rats in each group.Except the blank control group, the optic nerve crush injury rat models were established in the other groups, and left eyeballs were taken as samples.After successfully modeling, the model group were treated with intravitreal injection of 5μL of balanced salt solution while PEDF group were treated with intravitreal injection of 5μL of PEDF (0.2μg/μL).Two weeks later, the retinal tissues were collected, and changes of shape were observed under microscope after HE staining.The changes of NO level were measured by colorimetry assay, the expression of caspase-3 mRNA and caspase-3 protein was detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western-blot.RESULTS: HE staining showed that retinal tissues of the blank control group arranged neatly and clearly.Retinal ganglion cells (RGCs) arranged in a monolayer, and cells were oval, uniform in size and distribution, the cell nuclei were clear, closely arranged, with clear boundaries.The retinal tissues of the model group were sparse in shape, RGCs showed vacuolar changes, the overall number of cells was reduced, and cell nuclei of residual RGCs showed pyknosis and uneven staining.RGCs in PEDF group were with slightly edema and arranged closely, and the degree of injury was significantly milder than that in the model group.Levels of Caspase-3 mRNA and protein and NO levels in the three groups showed the model group > PEDF group > blank control group (all P < 0.05).CONCLUSION: The application of PEDF can down regulate the expression of Caspase-3 and NO in rates with optic nerve injury and reduce RGCs injury.

Adult ; Bone Cysts, Aneurysmal ; diagnosis ; surgery ; Bone Neoplasms ; diagnosis ; surgery ; Chondroblastoma ; diagnosis ; surgery ; Female ; Humans ; Male ; Talus ; surgery ; Young Adult

Objective To explore the status of social support and its relationship with depression in elderly university students.Methods 159 students aged 55 to 79 years of Nanning elderly university were selected using cluster sampling methods.They were surveyed by Social Support Rating Scale and Geriatric Depression Scale.Results ①The total score of social support(40.92±7.63) was higher than that of the national norm(34.56±3.73 ) (t=10.515,P＜0.01),and score of social support,subjective support,utilization of support were higher than those of the elderly in Beijing Xicheng district community that was mental health guidance demonstration area in national community (t=2.064,2.017,9.222; P＜0.05).②Social support score and each dimension score of having a spouse group were higher than those of no spouse group (t=5.78,4.956,4.918,3.175 ; P＜0.0 1).③The positive rate of depression in the sample group was 26.8％.Social support score,objective support score,subjective support score of depression in positive group(37.43±7.41,21.43±4.93,7.67±2.37) were lower than those of negative group(42.17 ±7.35,24.43±4.22,8.78±2.83,t=3.585,2.277,3.776 ; P＜0.05).④Social support,objective support,subjective support and depression were negatively correlated (r=-0.296,-0.194,-0.307; P＜0.01).Conclusion Elderly university student's overall level of social support are higher,and social support is negatively correlated with depressive symptoms.

Use of the existing data to analyse the situation for Military progress prizes in science and technology,medical achievement prizes,Army logistics major science and technology achievement award of Nanjing Military Commands health system from the eighth five-year plan period to the eleventh five-year plan.It shows that the medical research is overall increase during the ninth five-year plan period and downturn during the tenth five-year plan period,then the lever picks up again during the eleventh five-year plan period.This suggests that the improve the quality and quantity of the achievement in science and technology is effected by subject scale and scientific research innovation factors.Then put forward some countermeasures and suggestions for guiding the project direction of subject research,expanding the scale of subject,introducing high quality talents actively,using the incentive mechanism to strengthen the innovation of science and technology and expressing the special advantage to speed up the transformation of scientific and technological achievements.

Objective To explore the feasibility of 256-slice whole-brain CT perfusion (CTP) in evaluate graft reperfusion after surgical revascularization and hemodynamic alterations before and after surgery in Moyamoya disease. Methods Twenty-five cases with Moyamoya disease were scanned on a 256-slice CT.CTP was performed pre- and post- surgical revascularization. The wolumetric CT angiographic ( CTA ) images were generated from volumetric data acquired at the arterial phase of CTP. CBF, CBV, TTP and MTT were measured in functional maps at the operated side within middle cerebral artery perfusion areas and contralateral mirroring areas. Relative CBF( rCBF), relative CBV (rCBV), relative TTP (rTTP), relative MTT (rMTT) were also obtained. Differences in perfusion CT values pre- and post operation were assessed with the paired t test or matched-pairs signed-ranks test. Data with normal distribution was present as : (x-)± s,while those with the non-normal distribution were present as M ( P25-P75 ). Results All the direct graft patencies were displayed on volumetric CTA. No significant differences were found between volumetric CTA and conventional CTA. Postoperative CBF, rCBF and rCBV values of the operated side [ 72. 86 (55.54-112. 19) ml · 100 g-1 · min-1 , 1. 31 ( 1.05-1.73), 1.45 ±0. 62] were significantly higher than those before operation [46.72(28.57-57.67) ml · 100 g-1 · min-1, 0.53(0.33-0.82), 1.01 ±0.36](Z=- 2.72, - 2. 98, t = - 2. 85, P ＜ 0. 05 ). Postoperative MTT, TTP and rTTP values of the operated side [ (3.98 ± 2. 36 ) s, ( 17.56 ± 4. 38 ) s, 1.01 ± 0. 09 ] were significantly lower than those before operation [(5.43±2.07) s,(19.40±3.87) s,1.14±0.28] (t=2.41,2.17,2.17, respectively, P＜0.05).However, no significant differences were detected for changes of CBV and rMTT after revascularization ( P ＞0. 05). Conclusion 256-slice CT has the potential value for the non-invasive assessment of both the graft patency and cerebral hemodynamics changes in moyamoya disease after surgery with administration of one contrast medium bolus in a single examination.

Total DNA of B. amyloliquefaciens and S. aureus were isolated and cut partially with Hind Ⅲ Separately, The genes for barnase and for staphylococcal nucl ease were obtained by PCR and cloned into pGEM7Z-f(+), The sequencing show that the n ucleotide (nt) sequence of the barnase is 99.3% homologous with the previously determimed sequence and the deduced animo acid (an)sequence found to correspond precisely to the previously determined sequence; the nucleotide (nt) sequence of the staphylococcal nuclease is 99.1% homologous with the previously determined sequence and the deduced amino acid (an) sequence 99.3% homologous with the previously determinded sequence.These have built basis of making use of special expression or activation of nuclease to produce the male sterility plant by plant gene engineering and to explore new antiviral strategy.

More than 80 strains producing lipases were screened from oily soil of vegetable oil plant, meat processing factory and dairy factory in Jinan city, Shandong Province, which included bacteria, moulds and yeast. Conditions for lipase production and properties of some enzymes were studied. One drug-resistant mutant strain Y-11 with higher lipase activity was from Trichosporon sp. Y-1. In addition, Optimization of lipase production and characterization of enzymes were carried out. On the basis of above experiments, a characteristic library of stains producing lipases was established.

Objective To identify the imbalance of T cell-specific transcription factors T-bet/GATA-3,and to explore the modulation with dexamethasone and imiquimod in CD4+T cells from ovalbumin (OVA)sensitized mice.Methods CD4+T cells were obtained fromsingled-cell suspension of spleen(after lysis of RBC).ELISA assay was used to detect the concentrations of IL-4,IL-5 and IFN-γin superna tants and cell pellets,and the expression of T-bet and GATA-3 was detected by Western blot.Resuits In the control group,tIle low levels of IFN-γ were detected in the supernatants during 24 h.In OVA treatment group,the concentrations of IL-4,IL-5 were increased significantly,and the concentrations of IFN-γ were always low in the supernatants.In the dexamethasone treatment group,the concentrations of IFN-γ,IL-4 and IL-5 were all low in the supernatants during 24 h.In the imiquimod treatment group,the concentrations of IFN-γ were increased significantly,and the concentrations of IL-4 and IL-5 were decreased in the super natants.It worked at 6 h,and achieved the peak at 12 h,lasted over 24 h.In the control group,the expres sions of T-bet and GATA-3 were detected in CD4+T cells during 24 h.In OVA treatment group,the expressions of T-bet were decreased,and that of GATA-3 were increased rapidly in CD4+T cells.In dexam ethasone treatment group,the expressions of T-bet were always low in CD4+T cells,and that ofGATA-3 were no change during 24 h.In imiquimod treatment group,the expressions of T-bet were increased,andthat of GATA-3 were decreased in CD4+T cells.The protein expressions worked at 6 h.and achieved the peak at 12 h,lasted over 24 h.Conclusion The imbalance T cell-specific transcription factors T-bet/GA-TA-3 contributes to both high expression of GATA-3 and low expression of T-bet in CD4+T cells from OVA sensitized mice.Dexamethasone treatment inhibits the expression of T-bet in CD4+T cells and has no func tion in GATA-3.Imiquimod treatment modulates key master switches GATA-3 and T-bet that results in com mitting T helper cell to a TH 1 phenotype and imiquimod may play a key role in the regulation of TH2 cytokine responses in asthma.