Objective:To examine the relationships between acute stress disorder (ASD) symptoms,posttraumatic stress disorder (PTSD) symptoms and depressive symptoms in children survivors following the Lushan earthquake in China.Methods:One hundred ninety-seven children aged 1 to 14years (93 male and 104 female) were followed up at two and six weeks after Lushan earthquake.The ASDS,UCLA PTSD Reaction Index and DASS were used to measure the ASD,PTSD and depressive symptoms.Results:The average scores of ASDS and the depression subscale of DASS at two weeks after earthquake were(36.5 ± 10.9) and (3.3 ± 2.8),respectively.The average scores of UCLA PTSD Reaction Index and the depression subscale of DASS-21 at six weeks after earthquake were (18.5 ± 12.6) and (3.3 ± 3.5),respectively.The rates of ASD and PTSD were 28.6％ and 8.2％,respectively.The cross-lagged structural equation analysis with latent variables indicated that the ASD symptoms at two weeks after earthquake positively predicted PTSD symptoms (β =0.59,p ＜ 0.001) and depressive symptoms (β =0.29,p ＜0.001) at six weeks after earthquake.But there was no significant association between depressive symptoms at two weeks and PTSD symptoms at six weeks after earthquake.Conclusion:ASD symptoms in the early time postearthquake could predict subsequent PTSD and depressive symptoms,while depressive symptoms tend to remain stable within six weeks after earthquake.

Objective To investigate the survival rate, voiding, sexual function after nerve-sparing surgery with extended systematic extraperitoneal lateral lymphadenectomy in lower rectal cancer. Methods Three hundreds and ninety-two cases with advanced lower rectal cancer who underwent nerve-sparing surgery with radical dissection from 1996 to 2000 were reviewed. Among them,173 cases only cleared in abdominal cavity,219 cases coupled with extraperitoneal lateral lymphadenectomy. Results The metastatic rate of lateral lymph node was 17.8%(39/219),the rate of non-modal foci of metastatic disease in lateral out of the abdominal cavity was 5.9%(13/219).Local recurrence rate, the abdominal cavity group was 16.2%(28/173); the coupled group was 9.6%(21/219), P

To investigate the effects of oleanolic acid (OA) on the proliferation, migration and the formation of tube-like structure in human vascular endothelial cells (HUVECs). MTT assay, flat plate scarification, Transwell plates and matrigel-induced tube formation assay were performed to detect the effects of OA on proliferation, migration and tube formation. MTT assay showed that the inhibition rates of HUVECs treated with 60 and 100 microg x mL(-1) of OA for 24 h were 19% and 83% respectively. Treatment of HUVECs significantly inhibited the cell migration in a dose-dependent manner. The vascular indexes of HUVECs treated with 40 and 60 microg x mL(-1) OA were 33% and 20% respectively. Western blotting analysis showed that treatment of the cells with OA significantly attenuated the expression and secretion of VEGF. Additionally, VEGF could in part reverse the effects of OA on migration and tube formation of HUVECs. In conclusion, OA inhibits the proliferation, and VEGF plays an important role in OA induced decreased migration and tube formation of HUVECs.

Objective To investigate the epidemiological characteristics and mortality risk factors of severe sepsis patients admitted into intensive care unit (ICU).Methods The clinical data of 419 severe sepsis patients admitted to an adult ICU of Beijing Friendship Hospital from January 2009 to December 2012 were retrospectively analyzed and evaluated.Logistic regression analysis was employed to identify independent risk factors for the death of patients with severe sepsis during ICU stay.Results Overall ICU mortality was 43.9％ (184/419),and the respiratory tract was the most common site of infection (50.8％),followed by infection of the gastrointestinal tract and abdominal cavity (27.8％),and hematogenous infection (4.3％).Gram-negative bacteria were the most common pathogens [46.0％ (214/465)].Iatrogenic infections accounted for 53.7％ (225/419) of the enrolled patients.Logistic regression analysis showed that age [odds ratio (OR)=0.003,95％ confidence interval (95％CI) 1.015-1.056,P=0.O00],vasoactive drug application (OR=3.251,95％CI 1.562-6.768,P=0.002),failure of 3 or more organs (OR=2.452,95％ CI 1.015-5.924,P=0.046),and iatrogenic infection (OR =1.775,95％ CI 0.981-3.221,P=0.046) were independent risk factors for ICU mortality.Conclusions Severe sepsis is a common cause of ICU admission.Patients with risk factors for high mortality should be carefully monitored,and aggressive treatment should be administered.

OBJECTIVE:To provide reference for developing the antibiotic community pharmaceutical care. METHODS:Some residents of Jiangbei district of Ningbo were randomly collected for questionnaire survey on antibiotic storage,usage,accep-tance degree and demand of pharmaceutical care,etc. And the results were analyzed statistically. RESULTS:Totally 2 000 ques-tionnaires were sent out,1 784 were effectively received with effective rate of 89.2%. 74.2% of respondents had kept antibiotics in house;61.3% lacked antibiotic knowledge and easily be confused with anti-inflammatory drugs,43.5% thought antibiotics was ef-fective for virus infections;48.4% had self-treated with antibiotics,the most common reason was cold symptoms,and it existed amount or course of antibiotics changes by themselves;only 15.1%of them had knew or heard of pharmaceutical care;majority re-spondents(88.9%)wanted to accept antibotic pharmaceutical care,hoping to learn the indications,usage and dosage,contraindica-tions,precautions and adverse reactions of antibiotics by drug consultation,lecture,etc. CONCLUSIONS:The residents lack the knowledge about rational use of antibiotics,it is urgent for pharmacists to provide antibiotic community pharmaceutical care for resi-dents with purpose,which are important guarantee for rational use of antibiotics.

The paper elucidated the necessity of programmed operation in competence education of medical postgraduate students.This paper introduced the specific methods of programmed operation mode,exactly as selection of the best,scientific combination,coordination and arrangement,allocation of responsibility to individual,exact procedures,succession and development.The seven years practice experience in their colleges testified that these operational methods aroused the enthusiasm of postgraduate students' participation in campus activities and trained postgraduate student cadres.Meanwhile,these methods activated the campus culture and atmosphere and enhanced the comprehensive competence of postgraduates wholly.

Objective To investigate indications,technique,prognosis and complications of anterior flap hemipelvectomy (hemipelvectomy using a quadriceps femoris muscle flap with superficial femoral artery)in the treatment of pelvic tumors.Methods From April 2009 to October 2010,10 patients with pelvic tumors underwent anterior flap hemipelvectomy in our department.There were 9 males and 1 female,aged from 30 to 62 years (average,46 years).There were 7 cases of chondrosarcoma,1 case of epithelioid sarcoma,1 case of pleomorphic liposarcoma and 1 case of spindle cell sarcoma.Results Nine patients were followed up for 12 to 30 months (average,21.5 months).Superficial skin necrosis occurred in 1 patient,while there was no wound infection.Local recurrence (33.3％) occurred in 3 patients,including 2 cases of chondrosarcoma and 1 case of epithelioid sarcoma.Three patients died at last,including 2 patients with local recurrence and 1 with pulmonary metastasis from liposarcoma.Two patients survived with pulmonary metastasis,and remaining 3 patients survived without recurrence and metastasis.Conclusion Anterior flap hemipelvectomy is indicated for:(1) patients with extensive soft tissue sarcoma in the buttock,and the tumor or reaction zone involve the subcutaneous tissue; (2) patients with recurrent pelvic tumors,and the conventional posterior flap can't be used due to contamination by the original incision; (3) patients whose posterior flap has poor blood supply due to radiotherapy or other factors.The prerequisite of the surgery is that the blood stream between external iliac artery and femoral artery is unobstructed; moreover the blood vessels are not in the tumor reaction zone.Compared with conventional posterior flap,the anterior flap hemipelvectomy is an easier procedure,which not only can easily cover surgical defect and obtain better surgical margin,but also has less complications.

Objective To investigate the effects of remifentanil on large-conductance Ca2+ -activated potassium channel (BKCa) in human mesenteric arterial smooth muscle cells (MASMCs) and the mechanism of the vasorelaxant effect of remifentanil. Methods Human MASMCs were obtained freshly by the method of enzymolysis. BKCa current (IBKCa) was recorded by the whole-cell patch clamp technique. The changes in IBKC. produced by different concentrations of remifentanil (1.2, 4.8, 19.4, 77.4 and 310.0 nmol/L) with the holding potential of + 80 mV were observed. BKCa activation rate was calculated. Results Remifentanil significantly increased IBKCa,moved Ⅰ-Ⅴ curve upward and had no effect on the threshold of activation for IBKCa . With the increase in the concentration of remifentanil, BKCa activation rate increased gradually (P ＜ 0.01), and it remained stable when the concentration reached 19.4 nmol/L. There was no significant difference in the peak time of IBKCa after different concentrations of remifentanil were given (P ＞ 0.05). Logarithmic curve was found to suit the relationship between the concentration of remifentanil and BKCa activation rate and the IC50 concentration was (118 ± 7) nmol/L. Conclusion Remifentanil results in vasorelaxation by activating BKCa in MASMCs in a concentration-dependent manner.

Objective To investigate the mechanism by which remifentanil decreases blood pressure during cardiopulmonary bypass (CPB).Methode Twenty-six ASA Ⅱ or Ⅲ patients (NYHA's classification grade Ⅱ or Ⅲ ) of both sexes and aged 20-55 years were randomized to receive remifentanil (group R, n = 13) or normal saline (group C, n = 13). Remifentanil 10 μg/kg or equal volume of normal saline was administered via a venous reservoir when cardiac arrest was induced with cardioplegic solution. The flow rate resistance (SVR) were measured and arterial blood samples were taken for determination of plasma concentrations of histamine,nitric oxide (NO) and 6-keta-prostaglandin F1α(PGF1α) before T0 and at 5, 10, 15 min (T5.10.15) after remifentanil administration.Results Remifentanil administration was associated with a significant decrease in MAP and SVR at T5 and T10 as compared with the baseline values at T0 ( P ＜ 0.05); whereas in control group, MAP and SVR were significantly increased at T5, T10 and T15 as compared with the baseline values at T0 . There were no significant differences in plasma histamine, NO and PGF1α concentrations between the two groups.Conclusion Remifentanil reduces SVR and causes a decrease in BP but without altering plasma concentrations of histamine, NO or PGl2.

BACKGROUND: Compared to those original viruses systems, adeasy adenovirus, a recombinant adenoviral system widely used in recent years, based on viruses with a deletion of both El and E3, reported by T.C. He in 1998, is an improved one. It simplifies the generation and production of such viruses and expedite the process of generating and testing recombinant adenoviruses using homologous recombination in bacteria rather than in eukaryotic cells. Moreover, it can be conveniently followed with the aid of green fluorescent protein encoded by EGFP gene incorporated into the viral backbone.OBJECTIVE: To construct the recombinant adenovirus and to evaluate them by transfect them to mesenchymal stem cells (MSCs)and detect the expression of target gene hlGF-I at gene and protein levels.DESIGN: Repetitive measurement wail.SETTING: The Institute of Pediatric Research, Chongqing University of Medical Science.METHODS: The study was performed at the Institute of Pediatric Research, Chongqing University of Medical Science from November 2004 to March 2005. After the amplification of truncated hlGF-1 gene from pcDNA3.l-hlGF-I by polymerase chain reaction (PCR), the gene fragment was inserted into the shuttle plasmid pAdtrack-CMV for homologous recombination with backbone plasmid pAdeasy-I in bacteria BJ5183 to get adenovirus.Ad-hlGF-1. The high titer adenovirus supernatant was obtained by repeated transducing of HEK 293 cells by adenovirus harvested after confirmation of the adenovirus structure. As target cells,MSCs were infected with adenovirus earned target gene, hIGF-1, to determine the expression of hlGF-1 gene.MAIN OUTCOME MEASURES: ① The construction of recombinant adenovirus vector;② the expression of target gene hIGF-1 in HEK 293 cells and the proper multiplicity of infection (MOI); ③ hIGF-1 gene expression in MSCs.RESULTS: The adenovirus vector based on adeasy system was constructed successfully and the Ad-hlGF transducing was successfully or efficiently expressed in MSCs cells. The ideal expression of harvested recombinant adenovirus in MSCs was detected by fluorescence microscope, RT-PCR, immunocytochemistry, and Western Blot.CONCLUSION: Adenovirus vector is an effective vector tools for gene expression and wansfection of MSCs. MSCs transduced with Ad-hIGF-1 maybe another option to gene-modified seed cells for articular cartilage tissue engineering.