Objective To evaluate the effects of different surgical treatments on polycystic hepatic disease and multiple simple hepatic cysts.Methods A total of 35 cases of polycystic hepatic disease and 54 cases of multiple simple hepatic cysts were surgically treated in our department from Jan.1998 to Jan.2006.Of the 35 cases of polycystic hepatic disease,12 were treated with the partial hepatic resection in combination with cyst fenestration,18 with laparotomic fenestration,5 with laparoscopic fenestration.Of the 54 cases of multiple simple hepatic cysts,6were treated with percutaneons aspiration and instillation of sclerosing agents (ethanol) under the guidance of ultrasonography B,36 with laparotomic fenestration,13 with laparoscopic fenestration.The surgical outcome and longterm follow-up outcome were retrospectively analyzed.Results After treatment,all polycystic hepatic disease patients experienced relief of symptoms when discharged.And the follow-up for an average of 3.0 years showed that 2 patients developed recurrence after the partial hepatic resection in combination with cyst fenestration,8 after the laparotomic fenestration,5 after the laparoscopic fenestration.The recurring rates were 16.7%,44.4% and 100.0% ,respectively.However,all patients of multiple simple liver cysts cured.Conclusions The approach of partial hepatic resection in combination with cyst fenestration is the most effective treatment for polycystic hepatic disease.Liver transplantation can cure polycystic hepatic disease,and is the only effective approach for severe cases.Percutaneous aspiration under the guidance of ultrasonography B is only effective for relief of symptoms before operation.Laparoscopic fenestration should be applied with caution.Laparoscopic fenestration is the first choice for multiple simple hepatic cysts with clinical symptoms.

Objective To investigate the effect of epidermal growth factor (EGF) on the expression of Matrix metalloproteinase-9 (MMP-9) and the signalling pathways involved in the trophoblast cell line JEG-3. Methods The JEG-3 trophoblast cell line was used in this study. (1) JEG-3 cells were cultured with various concentrations of EGF (0, 1, 10,20 ng/ml) for 24 hours and the expression of MMP-9 was tested by western blotting and reverse transcription PCR (RT-PCR). (2) Western blotting and RT-PCR were also used to investigate the expression of MMP-9 expression after incubation for 0,4,12 and 24 hours with EGF treatment (10 ng/ml) in JEG-3 cells. (3) According to the different added ingredients, JEG-3 cells were divided into some groups: control group (without EGF), EGF group (exposure to l0ng/ml EGF),EGF + inhibitors group (exposure to 10 ng/ml EGF +20 ng/ml SB203580 or exposure to 10 ng/ml EGF + 10ng/ml U0126) inhibitors group (exposure to 20 ng/ml SB203580 or exposure to 10 ng/ml U0126). Western blotting were used to investigate the expression levels of MMP-9, nuclear factor kappa B (NF-kB) ,p38MAPK, phospho-p38MAPK (p-p38MAPK) , extracellular -signal regulated kinase (ERK) and phospho-ERK (p-ERK) protein in JEG-3 cells after incubation for 24 hours. Results (1) The profiles of MMP-9mRNA were increased by various concentrations of EGF (0, 1 , 10, 20 ng/ml) in JEG-3 cells after 24hculture. The expression of MMP-9 mRNA in JEG-3 cells exposure at 1 ng/ml of EGF (0. 567 ±0. 056) , 10ng/ml of EGF (1. 392 ±0. 133) , 20 ng/ml of EGF (1. 971 ±0. 067) were significantly higher respectively (P <0. 05) , compared with 0 ng/ml of EGF treatment (0. 166 ±0. 015). Similarly, MMP-9 mRNAs were also increased with the increasing incubation time. Compared to EGF (10 ng/ml) stimulation for 0 h (0.253 ±0.044), the MMP-9 mRNA profiles were 0. 470 ±0. 026, 1.061 ±0. 115, 1. 453 ±0. 180 for 4,12 and 24 hours, respectively (P < 0. 05). (2) In accordance to the mRNA profiles, the expression of MMP-9 protein was also increased by different concentrations of EGF (0,1, 10, 20 ng/ml) in JEG-3 cells after 24 h-culture. The abundance of MMP-9 protein in the three groups was 0. 043 ±0. 012, 0. 085 ±0. 008, 0. 142 ±0. 015, with a significantly higher expression, compared with 0 ng/ml of EGF treatment (0. 004 ±0.001, P < 0.05) respectively. Similarly, MMP-9 proteins were also increased with the increasing incubation time. Compared to EGF(10 ng/ml) stimulation for 0 h (0. 030 ±0. 009) , the profiles of MMP-9 protein were 0. 137 ± 0. 010, 0. 240 ± 0. 010, 1.240 ±0.061 for 4, 12 and 24 hours, respectively (P < 0.05). (3) Both p38MAPK and ERK signalling pathways were activated by EGF in JEG-3 cells. The expression of p-p38MAPK was significantly higher (without or with 10 ng/ml EGF, 234. 1 ± 4. 1 vs.260. 9 ± 2. 5 , P < 0. 05) , however, the p38 MAPK inhibitor SB203580 markedly suppressed the increase in p-p38MAPK content induced by EGF(227. 9 ±2. 4 vs. 260. 9 ±2. 5, P<0. 05). Similarly, the expression of p-ERK was significantly higher with EGF treatment (812. 2 ±3. 5) vs. without EGF group (453.4±5.8) (P <0. 05) , while the ERK inhibitor U0126 significantly inhibited the increased p-ERK content in response to EGF treatment (71. 0 ± 1. 2 vs. 812. 2 ± 3. 5, P < 0. 05) . (4) The p38MAPK inhibitor SB203580 significantly reduced the expression of EGF-induced MMP-9 (0. 645 ± 0. 270 vs. 1. 476 ± 0. 452, P < 0. 05)and NF-kB (0.530 ± 0.026 vs. 0.959 ± 0. 017, P < 0. 05) . (5) The ERK inhibitor U0126 also significantly reduced the expression of EGF-induced MMP-9 (0. 623 ±0. 030 vs. 2. 112 ±0. 056, P <0. 05)and NF-kB (0. 325 ± 0. 082 vs. 0. 939 ± 0. 153, P < 0. 05). Conclusion EGF induced the expression of MMP-9 in a time and dose-dependant manner in JEG-3 cells. EGF enhanced MMP-9 expression through the activation of p38MAPK and ERK signalling pathways in JEG-3 cells.

Objective To explore the character of ruminant thinking individuals in cold executive functions(cool EF) and hot executive functions(hot EF).Methods According to the score of rumination response scale( RRS) ,17 low-level ruminant thinking individuals and 21 high-level ruminant thinking indi-viduals were screened out and finished the classic Stroop test.Results In the cool EF,it was consistent be-tween low-level and high-level ruminant thinking individuals for color naming task response time ((10.61± 23.20)ms vs (10.79±29.32)ms),and there was no significant difference in the classic Stroop test( t=0.21, P>0.05) .In the hot EF,the respone time of the low-level group was longer than that of high-level group on the positive and negative((-5.01±22.20)ms vs (-10.88±20.33)ms;(8.78±29.96)ms vs (-8.68±19.94) ms) ,and the main effect of the emotional Stroop interference scores between positive and negative words was highly significant(F=10.88, P<0.05) .The interactive effect of emotional Stroop interference scores of words × subjects was significant(F=5.70, P<0.05) .The simple effect tests showed that the emotional Stroop interfer-ence scores between high-level and low-level ruminant thinking subjects were significant in the negative group(F=4.69, P<0.05) .And it was also significant between positive and negative words in the low-level group(F=14.63, P<0.05).Conclusion Two types of subjects in the cold EF have no significant difference. High-level ruminant thinking individuals in the cold EF are normal,but impaired in the hot EF that meaning high-level ruminant thinking individuals had bias to negative emotion.These results provide new clues for the intervention of negative emotions caused by ruminants.

Objective To investigate the characteristics and mechanisms of attentional bias in anxiety sensitivity individuals.Methods By using Anxiety Sensitivity Index (ASI),23 participants were included in the high score group and 20 participants were included in the low score group.Then,2 (between-subject factor:the high and low score group) ×2 (within-subject factor:the positive and negative picture) mixed design experiments were adopted.Emotional faces picture pairs were chosen as stimuli.Picture pairs were presented 100 ms in experiment 1 and 1 250 ms in experiment 2.Dot-probe task was adopted to inspect the attentional bias and the response time and correct rate were recorded.Results Experiment 1 implied the main effect of type of pictures was found in mixed design experiments(F(1,41)=4.40,P＜0.05).The reaction time of two groups in positive pictures was greater than zero((12.22±30.24) ms vs (10.07±21.55) ms).It showed input effect to positive pictures.An input effect due to the reaction time of the high score group was greater than zero to negative pictures((4.81± 17.88)ms),while the low score group tended to avoid the negative pictures ((-6.81 ±21.33) ms).Experiment 2 implied positive score was not significant between two groups (F(1,41) =0.29,P＞0.05).And positive score showed the attentional bias to some certain extent.Significant outcome was found by negative score between two groups (F(1,41) =6.41,P＜0.05).It implied that the high score group tended to avoid the negative pictures and the low score group had the tendency of input effect.Conclusion At the initial stage of attention,anxiety sensitivity individuals had the attentional bias to negative emotional faces and avoidance in the late stage of attention.It suggests that the attentional bias of anxiety sensitivity individuals may have an important effect on the development of the mental disorders.

Objective To investigate the relationship of college students'explicit and implicit attitudes to suicide and the feasibility of applying B-IAT to measure their suicide attitude.Methods Explicit suicide attitude was primarily investigated by suicide attitude questionnaire (SAQ),and implicit attitudes experimental study was carried out by suicide brief implicit association test (B-IAT).The subjects of this study included 50 college students,and it was used within-subject design.Results ①Each dimension values of explicit suicide attitude was from 2.5 to 3.5,indicating that the subject~ explicit suicide attitude dominated by neutral or contradictory.②The mean of B-IAT was 0.43,indicating that the subjects' implicit suicide attitude was prone to negative.③College students' suicide explicit and implicit attitudes were statistically no significant correlation,indicating that students implicit suicide attitudes was independent of explicit attitudes.Conclusion It is feasible to measure explicit suicide attitudes by B-IAT.College students' implicit suicide attitudes is independent of explicit attitudes.The results from simple IAT may be more accurately reflects the subjects' true attitudes towards suicide.

Objective To explore the mediation role of university graduates' core self-evaluation played between perfectionism and job-selecting anxiety.Methods 200 university graduates were investigated by Chinese frost multidimensional perfectionism questionnaires,core self-evaluation scale and self-rating anxiety scale with convenience sampling method.Results ①Job-selecting anxiety had no distinct differences in gender,residence and the aspects of only-child(P＞0.05),but in different subjects,it was different(science and technology(1.79±0.49),culture and history(3.21±0.50),t=-4.38,P＜0.01).② University graduates' positive perfectionism was positively correlated with core self-evaluation (r=0.31,P＜ 0.01),while negatively correlated with job-selecting anxiety (r=-0.35,P＜0.01).University graduates' negative perfectionism was negatively correlated with core self-evaluation(r =-0.35,P＜ 0.01),while positively correlated with job-selecting anxiety (r =0.42,P＜ 0.01).Simultaneously core self-evaluation was negatively correlated with job-selecting anxiety (r=-0.46,P＜ 0.01).③ Core self-evaluation played a part of the intermediary role between negative perfectionism and job-selecting anxiety.The mediating effect was 30.0％ of the total effect.Core self-evaluation played a part of the intermediary role between positive perfectionism and job-selecting anxiety.The mediating effect was 34.5％ of the total effect.Conclusion Perfectionism as a personality trait can calculate the level of job-selecting anxiety.Core self-evaluation plays a part of the intermediary role between perfectionism and job-selecting anxiety.It is helpful to the working tactics of university graduates.

Sixty patients underwent surgery for malignant thoracic tumor were evenly randomized into control group (group A) and treatment group (group B).0.3 ml low-molecular-weight heparin was injected per 12 h for 3 d in group B from 24 h after surgery.Bilateral venous sonography of lower extremities were performed before and d1,d3 after operation.Blood coagulation marks PLT,PT,APTT,Fibrinogen (FIB)and D-dimer were determined at the same time.Diagnosis of calf vein thrombosis after surgery was confirmed by color Doppler sonography in 7 patients:1 in group B (3％) and 6 in group A (20％) (P ＜ 0.05 ).Thrombosis at calf intermuscular vein was found in 6 patients and thrombosis at posterior tibial vein in 1 patient.FIB and D-dimer had no significant difference on the dl ( P ＞ 0.05 ) between two groups,but significantly lower on the d3 after surgery in group B than that in group A ( P ＜ 0.05 ).Low-molecularweight heparin reduced blood hypercoagulation state and thrombosis.Color Doppler sonography can be a valuable method for detecting asymptomatic deep vein thrombosis in the early stage after surgery and monitoring the efficacy of thrombosis prevention.

Objective To investigate the impact of negative perfectionism on negative emotion(anxiety,depression) and the moderating effects of positive perfectionism.Methods A study was designed and a sample of 380 college students completed questionnaires including PANPS,SAS and SDS.Results ① Correlation analysis indicated positive perfectionism was negatively correlated with anxiety and depression (r1 =-0.25,P1 ＜0.01,r2 =-0.29,P2＜0.01),while negative perfectionism was positively correlated with anxiety and depression(r1 =0.26,P1 ＜0.01,r2 =0.22,P2＜0.01).② Moderating effects analysis indicated that positive perfectionism significantly moderated the regulating effect of negative perfectionism upon negative emotions(anxiety,depression) (β 1 =-2.64,β2 =-7.67,P＜0.01).Conclusion These findings suggest that the higher level of positive perfectionism,the greater influence of perfectionism on depression and anxiety,and positive perfectionism could buffer the negative perfectionism on anxiety and depression.

Purpose: This study explored the mediating effect of career calling in the relationship between familysupportive supervisor behaviors and turnover intention among nurses. Methods: Data were gathered from 563 nurses enrolled in eight public hospitals in China. They were required to complete measures of family-supportive supervisor behaviors, career calling, and turnover intention. Hierarchical multiple regression analysis and the bootstrapping procedure were used to examine the mediating role of career calling. Results: Family-supportive supervisor behaviors were positively associated with career calling, but negatively associated with turnover intention. Furthermore, career calling partially mediated the relationship between family-supportive supervisor behaviors and turnover intention. Conclusion This study provides strong evidence for an increasing body of work that emphasizes the importance of nursing leaders engaging in family-supportive behaviors for increasing employee career calling and reducing turnover intention.

Purpose: This study explored the mediating effect of career calling in the relationship between familysupportive supervisor behaviors and turnover intention among nurses. Methods: Data were gathered from 563 nurses enrolled in eight public hospitals in China. They were required to complete measures of family-supportive supervisor behaviors, career calling, and turnover intention. Hierarchical multiple regression analysis and the bootstrapping procedure were used to examine the mediating role of career calling. Results: Family-supportive supervisor behaviors were positively associated with career calling, but negatively associated with turnover intention. Furthermore, career calling partially mediated the relationship between family-supportive supervisor behaviors and turnover intention. Conclusion This study provides strong evidence for an increasing body of work that emphasizes the importance of nursing leaders engaging in family-supportive behaviors for increasing employee career calling and reducing turnover intention.