Objective To develop stress vulnerability prediction scale for soldiers.Methods 148 items were determined by reviewing items in relating literatures and scales,interview,panel discussion and expert consultation.Then 431 and 351 soldiers in two times were picked out randomly as samples from Army Northwest District.Item analysis,exploratory factor analysis,reliability analysis and confirmatory factor analysis were used to analyse the data.Results Stress vulnerability prediction scale comprised five subscales:traumatic events,positive affect,negative trait,negative coping and interpersonal support.The scale was comprised of 59 items,and the factor loading of the items ranged from 0.503 to 0.839.Cronbach's α coefficient of the five subscales were 0.777,0.903,0.923,0.882,0.908,and the Cronbach's α coefficient of the scale was 0.895.Confirmatory factor analysis showed a higher goodness of fit(RESEA =0.058,NFI =0.89,NNFI =0.93,CFI =0.94,IFI =0.98).Conclusion Stress vulnerability prediction scale in soldiers has good psychometric properties,and can be used as a prediction measurement tool for measuring the stress disorder for soldiers.

OBJECTIVE: To investigate the correlation between C-erbB-2 and angiogenesis of breast cancer and its clinical significance.METHODS: The expression of C-erbB-2,VEGF(vascular endothelial growth factor) and MVD(microvessel density) in breast cancer tissues were detected by two-step immunohistochemical method.RESULTS: For the 50 breast cancer specimens,the positive rate was 44 %(22/50) for C-erbB-2 vs.64%(32/50) for VEGF,and the MVD value was 25.96?11.59.The positive expression rates of C-erbB-2 and VEGF and MVD value in patients with lymph node metastasis of breast cancer were all higher than in those without lymph node metastasis of breast cancer(P0.05).C-erbB-2 expression was positively correlated with VEGF expression(P

Blood GSHpx activities of populations living in Keshan disease affected and non-affected areas were examined. The enzyme activities of people in affected areas were lower than that in non-affected areas. That of agricultural population is lower than that of workers and staff members living in same affected areas. The enzyme activities of patient suffering from Keshan disease were a little lower than that of other children. After oral administration of Na2SeO3 for one year, the enzyme activities of children in affected areas increased to the same level of that in non-affected areas. Significant correlation was found between selenium concentration of blood and hair and GSHpx activities.

usually in the 24th to 72nd h postburn.There was edema associated with mild necrosis of the duodenal mucosa immediately after burns.Severe necrosis occurred in the 2nd h postburn.The manifestations reached the peak in the 24th h and were alleviated in the 72nd h postburn.As a rule,the damages on the duodenal mucosa occurred early and persisted for a long period with high incidence and severe wounding conditions.The damages of gastroduodenal mucosa were more severe in the phosphorus burn group than in the napalm burn proup mainly because of the more intense heat stress after phosphorus burns and the tosicity of the element phosphorus and phosphorus free redicals.

ObjectiveTo develop the scale on idol worship for college students.Methods54 items were determined by reviewing items in relating literatures and scales,interview and panel discussion.Then about 110,182 and 277college students were picked out randomly as samples from colleges of Guangzhou.Item analysis,exploratory factor analysis,reliability analysis and confirmatory factor analysis were used to analyse the data.ResuitsIdol worship scale comprised four subscales:fascination,rational knowledge,the degree of concern and behavioral modification.The scale was comprised of 20 items,and the factor loading of the items ranged from 0.552 to 0.841.Cronbach's α coefficient of the four subscales were 0.894,0.715,0.769,0.758,and the Cronbach's α coefficient of the scale was 0.889.Confirmatory factor analysis showed a higher goodness of fit( RESEA =0.064,GFI =0.89,NFI =0.96,NNFI =0.98,CFI =0.98,IFI =0.98 ).ConclusionThe idol worship scale has good psychometric properties,and can be used as a measurement tool for measuring the idol worship of college students.

Objective To demonstrate the value of eombined application of prenatal ultrasonography with fetal magnetic resonance imaging(MRI) in the diagnosis of monochorionic muhifetal realformations. Methods Fourteen cases of muhifetal malformations,detected by prenatal ultrasonography,received MRI within 48 h afterwards.All diagnosis were confirmed after delivery or mid-term termination.All imaging results of the 14 cases were retrospectively reviewed. Results Among the 14 cases,there were 7 acardias,5 Conjoined twins and 2 demise of multifetuses.Comparing ultrasound with MRI,we found that:(1)In cases with acardia and demise of multifetusea,ultrasound could diagnose correctly and be an important tool for follow-up,while MRI could demonstrate organs and structures of the acardiac recipient more clearly and detect the secondary changes of brain in the donor and survived fetus.(2)In Conjoined twins,ultrasound was superior to MRI in demonstrating the structure and function of cardiovascular system : and equivalent to MRI in identifying stomach,kidney,bladder and limbs;but inferior to MRI in identifying esophagus,lung,liver and intestinal,especially in the brain. And MRI could demonstrate two fetuses and the relationship between them in COnjoined twins simultaneously. Conclusions Prenatal ultrasonography and MRI have their own advantages and disadvantages in diagnosing monochorionic multifetal malformations.But the combination of prenatal ultrasonography and fetal MRI may be more valuable.

Objective To investigate changes in the number of endothelial progenitor cells (EPC) from peripheral blood and pathological feature in the development of transplant arteriosclerosis in mouse abdominal aortic allografts, and discuss their correlations. Methods A segment of abdominal aorta was transplanted orthotopically from C57BL/6 to Balb/c mice. The grafts were harvested at 3rd day, 2nd week, 4th week and 6th week after the operation and studied by light and electronic microscopy. Regional changes in the lumen and intima were measured with computer imaging analysis system. EPC from peripheral blood were quantified by flow cytometry. Results Endothelium injury and inflammatory cells infiltration were seen in the aortic allografts at 3rd day after transplantation.Neointimal lesions and acute rejection were observed as early as 2nd week after surgery. The lumen of allografts was significantly narrowed due to neointima hyperplasia and had progressed at 4th and 6th week postoperatively. The number of circulation EPC was increased from 1 st day after operation and reached the peak at 3rd day. Thereafter the number of EPC was decreased rapidly and significantly less at 14th and 28th day postoperation than that pre-operation. Conclusion Abdominal aortic transplantation from C57BL/6 to Balb/c mice presents typical pathological feature of transplant arteriosclerosis. The number of EPC from peripheral blood is related to the process of injured endothelial repair and neointima formation of aortic grafts. EPC count may be considered a novel biological marker and therapeutic intervention for transplant arteriosclerosis.

Balloon Occlusion ; Esophageal and Gastric Varices ; Humans ; Polyethylene Glycols ; Sclerotherapy

The phenylacetone monooxygenase, isolated from Thermobifida fusca, mainly catalyzes Baeyer-Villiger oxidation reaction towards aromatic compounds. Met446 plays a vital role in catalytic promiscuity, based on the structure and function of phenylacetone monooxygenase. Mutation in Met446 locus can offer enzyme new catalytic feature to activate C-H bond, oxidizing indole to finally generate indigo and indirubin, but the yield was only 1.89 mg/L. In order to further improve the biosynthesis efficiency of the whole-cell catalyst, metabolic engineering was applied to change glucose metabolism pathway of Escherichia coli. Blocking glucose isomerase gene pgi led to pentose phosphate pathway instead of the glycolytic pathway to become the major metabolic pathways of glucose, which provided more cofactor NADPH needed in enzymatic oxidation of indole. Engineering the host E. coli led to synthesis of indigo and indirubin efficiency further increased to 25 mg/L. Combination of protein and metabolic engineering to design efficient whole-cell catalysts not only improves the synthesis of indigo and indirubin, but also provides a novel strategy for whole-cell catalyst development.
Escherichia coli ; genetics ; metabolism ; Glucose ; metabolism ; Indigo Carmine ; metabolism ; Indoles ; metabolism ; Industrial Microbiology ; methods ; Metabolic Engineering ; Metabolic Networks and Pathways ; Protein Engineering

Objective To explore the predictive value for coronary heart disease by epicardial adipose tissue(EAT) thickness and carotid intima-media thickness(IMT) measured with high-frequency ultrasound.Methods According to the results of coronary angiography, the cases were divided into the normal control group (29 patients),coronary artery disease group with single-vessel lesion (43 patients),coronary artery disease group with multi-vessels lesion (28 patients), respectively. EAT and IMT were measured by high-frequency ultrasound. Results The EAT in the three groups were (4.8 ± 1.3) mm, (7.6 ± 1.8) mm,(10.1±2.6) mm respectively, and the IMT were (0.8±0.1)mm,(1.0±0.2)mm,(1.1 ± 0.2)mmrespectively. In either coronary artery disease group with single-vessel lesion or multi-vessels lesion, the EAT and IMT were significantly higher than those in the normal control group ( P＜ 0.01 ). And the difference between groups of single-vessel lesion and multi-vessels lesion was also statistically significant (P＜ 0.01). The areas under receive operating characteristic(ROC) curve to predict coronary heart disease by EAT and IMT was 0.947 and 0.917, respectively, there was no significant difference between the two areas. For patient with coronary artery stenosis＞50%, the sensitivity and specificity of EAT＞6 mm were 90.1% and 86.2% ,respectively,the sensitivity and specificity of IMT＞0.85 mm were 87.3% and 82.8%,respectively. Conclusions EAT and IMT measured by high-frequency ultrasound can precisely predictcoronary heart disease. EAT can be a new predictor to diagnose coronary heart disease.