Objective To explore the role of intracellular Ca~(2+) in inhibition of axonal outgrowth,which could learn more about the signal transduction mechanism of Nogo-A inhibiting axonal outgrowth. Methods Using laser confocal microscope,intracellular calcium level in cerebellar granule neurons after Nogo-A added in different times was measured and the effect of Nogo-A inhibiting axonal outgrowth when priming nimodipine was observed. Results The concentration of Ca~(2+) increased in 5 minutes after Nogo-A added,and reached to peak in 30 minutes,then decreased gradually,90 minutes later dropped to normal level.When priming with nimodipine,the axonal inhibition by Nogo-A was partly abrogated compared with control.Conclusion Ca~(2+) may participate in the signal transduction of Nogo-A inhibiting axonal outgrowth.

Objective:To study the quality standard for Fujie lotion. Methods:The qualitative identification of Sophora alopecu-roides L, Cnidium monnieri ( L. ) Cuss and borneol was detected by TLC. The quantitative determination of matrine was detected by HPLC. Results:The identification by TLC was highly specific, and the content determination method was accurate and repeatable. The linear range of matrine was 0. 013 0-1. 30 mg·ml-1, and the average recovery was 97. 1% with RSD of 1. 7%(n=6). Conclu-sion:The standard can effectively control the quality of Fujie lotion.

Pancreatic neuroendocrine tumors(pNETs)have a low prevalence,and may be func-tional as secreting biologically active substance or nonfunctional. With the increased understanding of this disease,new technologies are being developed for diagnosis and treatment. However,surgical excision re-mains the primary therapy for localized tumors and the cure rate is not ideal yet. In choosing the appropri-ate therapy for locally advanced/ metastatic pNETs,medical management strategy should be made in a multidisciplinary context. In addition to chemotherapy,there have been significant advances in targeted mo-lecular therapy.

Objective To evaluate the feasibility and advantage of using withdrawable Sigma stent for the treatment of tracheo-esophageal fistular. Methods The stents were placed into trachea or/and esophagus by interventional or/and endoscopic technique. Results Esophageal cancerin 17 and benign disease in 2. Totally 38 stents were placed in 19 cases of patients (trachea 19, main bronchus 1, esophagus 18). Only one tracheal stent was placed in 2 cases. Two stents(one in trachea, another in esophagus) were placed in 15 cases ( 11 cases with 2 tubular type stent, 4 cases with one tubular and one bifurcated type stent). Three stents were placed in 2 cases. One stage placement of the stent in 35, withdrawed the stent and reinserted again in 3. All the patients have normal meal 2～4 days postoperatively. Only one patient had a little contrast in the trachea during X-ray exam but without symptoms, the fistulae completely sealed in 18 cases. Follow-up was fron 3 months to 3 year. 10 patients were still alive; the longest survival is 18 months. There were 9 deaths. The causes of death were pulmonary infection in 1, hemorrhage in 1, and systemic metastasis in 7 cases. Conclusion Sigma stent is can effectively treat tracheal or/and esophageal stenosis or fistular.

Objective:To study the effects of supranutrional levels of yeast-selenium on antioxida-tion status and immune function in mice with tumour.Method:Sixty KM mice were divided into three groups: control group,yeast-selenium Ⅰ group and Ⅱgroup.The mice were supplemented with 0.5ml normal saline,3.2 ?g and 6.4 ?g yeast-selenium respectively by gavage on time a day based on the low selenium diet.The mice were inoculated with Ehrich ascites carcinoma(EAC) after 13 d.The tumour weight and immune function and antioxidative indices in blood were measured after 23 d.Results: The two yeast-selenium levels increased the activities of GSHPx(P

Objective To examine the reliability and validity of the meaning in life questionnaire (MLQ) in Chinese sergeants.Methods Convenience sampling was applied to collect data from 574 sergeants.Part of the data randomly selected (n=278) was conducted exploratory factor analysis and the other (n=296) was used in confirmatory factor analysis.The satisfaction with life scale(SWLS),self-rating depression scale (SDS),and selfrating anxiety scale(SAS) were administered to test the criterion-related validity.Results (1) Exploratory factor analysis vertified a 2-factor model which consisted of presence of meaning (MLQ-P) and search for meaning (MLQ-S),and their cumulative contribution rate was 61.02％.The range of factor loading was between 0.62 and 0.85.Confirmatory factor analysis confirmed the hypothesized 2-factor model (x2 =32.82,GFI =0.97,AGFI =0.94,NFI =0.96,CFI =0.98,RMSEA =0.06).(2) The internal consistencies were good for the overall scale (Cronbach's alpha =0.79) and the subscales (Cronbach's alpha =0.80 and 0.78,respectively).(3) MLQ-P score was positively correlated with SWLS (r=0.21,P＜0.01),while negatively correlated with SDS and SAS(r=-0.50,-0.43).MLQ-S had positive correlation with MLQ-P(r=0.31,P＜0.01).(4)Scores of MLQ-p and MLQ-S in sergeants were higher than college students(t=38.13,P＜0.001,t=25.07,P＜0.001).Conclusion The Chinese version of MLQ is reliable and valid for application to Chinese sergeants.

Objective Normal radiographic scaphoid lunate (SL) interval is thought to be 2 mm and abnormal SL interval is a prerequisite for diagnosing scapholunate instability. However, in the routine neutral rotation posterior anterior (PA) view of the wrist, the frequent overlapping between scaphoid and lunate precludes proper interpretation of the interval. Moreover, the normative data in Chinese population has not been reported. We developed a new but simple technique in radiological assessment to evaluate the normal SL interval in Chinese. Methods With the forearm in neutral rotation, a PA view of the wrist was taken using a mobile Xiscan. A radiolucent cushion was put underneath the hypothenar eminence so that the metacarpal arch of hand became parallel to the receiver table of the Xiscan. The normal supination posture of the wrist was thus corrected and the true SL interval was revealed. Two hundred normal wrists were examined; there were 46 female and 54 male healthy Chinese subjects, with age ranging from 18 to 80. The SL interval was determined with wrist in neutral, radially deviated and ulnarly deviated position using the cushioned neutral rotation PA view. The length of capitate, hamate and lunate were also measured to correlate with the SL interval. Results By using the standard PA view, the SL interval could not be determined in 60% of cases. Using the new assessment method, the optimal intervals were seen in all cases. The average SL interval was (2.07?0.65) mm. There was no significant gender difference. The measurement of ulnar variance was not affected by the new method. Conclusion The modified (Cushioned) PA view was the optimal radiological assessment method for true SL interval. There was wide variation of the normal value of the SL interval in Chinese population.

In order to evaluate the changes in T cell subsets after acute irradiation injury, and investigate the mechanism of deficiency of cellular immunity in acute irradiation syndrome, Balb/c mice were exposed to a single total body irradiation of 5Gy gamma rays from a 60 Co source. On days 10, 28 and 120, the amounts of CD4 + and CD8 + subsets in spleen cells were evaluated by flow cytometry (FCM), and expression of IL 4 gene in ConA stimulated spleen cells was evaluated by reverse transcription linked polymerase chain reaction, in which ?-actin gene was used as an internal control. It was found that after irradiation, the ratio of CD4 + /CD8 + became significantly higher than that of the controls, and then the ratio lowered gradually until day 120. However, it still did not return to the level of the controls. On day 10, expression of IL 4 gene at mRNA level increased significantly. The results indicated that CD8 + subset was more radiosensitive than CD4 + , and the pattern of cytokine seeretion shifted to that of Th2 soon after irradiation.

Objective To evaluate the possibility, methods and efficiency of simultaneous transcatheter therapy for perimembranous ventricular septal defect(PMVSD) combined with atrial septal defect(ASD).Methods Four patients with PMVSD combined with ASD, including 3 males and 1 female, age ranging from 12 to 26 years; underwent simultaneous attempted transcatheter therapy. The diameters of PMVSD were 3-6 mm and the distances from the defect rim to aortic valve were 2-6 mm by the echocardiography before the precedure. The stretched diameter of ASD was 6-10 mm. PMVSD were occluded using homemade two-disc PMVSD occluder first and the ASD were occluded later on. Results All patients were treated successfully at one time. The diameter of PMVSD were 3.5-10.0 mm, the diameters of occluder was 4-12 mm. The stretched diameter of ASD was 6-10 mm and the occluder diameter was 6-12 mm. No residual shunt was found by the transthoracic echocardiography and left ventriculography after the occluders deployed. No complication occurred. Conclusion Simultaneous transcatheter therapy for PMVSD combined with ASD is feasible, safe and effective.

Objective: To study the efficacy of purging the lung and removing phlegm and blood stasis method(泻肺化痰祛瘀法) on animal model of pulmonary hypertension induced by monocrotaline and explore its mechanism.Methods: The model of pulmonary hypertension induced by monocrotaline was established in rats.Sixty healthy and clean male Wistar rats were randomly divided into normal control group,model group,low and high dosage of traditional Chinese medicine(TCM) drugs for purging the lung and removing phlegm and blood stasis groups.From the 15 th day after model establishment,two dosage groups were treated with the drugs in the prescription containing the main ingredients as follows: 9 g prepared rhubarb(制大黄),(2 g)(prepared)(euphorbia) kansui(炙甘遂),15 g lepidium apetalum(葶苈子),9 g ligusticum(川芎) and 15 g(scutellaria)(黄芩) infused into the stomach once a day for 7 days.Normal control group and model group were given normal saline infused into the stomach.Mean right ventricular pressure(MRVP) and the mean(pulmonary) artery pressure(MPAP) of rats were measured by right cardiac catheterization,and the(pathological)(changes) of lung tissues were detected by hematoxylin and eosin(HE) stained sections.(Results:) The MRVP and the MPAP in high dosage group((13.37?4.22)mm Hg and(12.26?2.79) mm Hg,(1 mm Hg)=(0.133 kPa)) were lower than that in the model group((16.27?2.27) mm Hg and(14.77?(2.39) mm Hg),P