Objective To compare the advantages between CT and MRI examination and to evaluate the applied value of diffusion weighted imaging(DWI) in acute cerebral trauma.Methods 54 cases with cerebral trauma were undergone CT and MRI simultaneously,the advantages and disadvantages of both examination were analysed using self-comparative method. Results In showing subarachnoid hemorrhage, ultra-acute cerebral bleeding and bone fracture,CT was better than MRI,but cerebral contusion in 5 cases,laceration of white matter in 5 cases,acute white matter swelling in 2 cases and subdural haematoma in one case were misdiagnosed by CT.DWI was much better to show laceration of white matter and acute cerebral matter swelling than CT and conventional MRI.Conclusion In diagnosing acute cerebral bleeding and bone fracture, CT is better than MRI, for other diagnoses MRI better than CT. DWI should be applied to be a common scan method in diagnose of acute cerebral trauma.

Objective To determine the nutrients contents in muscle of Culter erythropterus and evaluate its nutritive value. Method The nutrients composition was analysed by general method. Results The contents of moisture, crude protein, total fat, total sugar and ash were 78.29%, 18.31%, 0.97%, 1.18% and 1.17%, respectively. The total amount of AA, EAA, NEAA and FTAA was 71.93%, 31.61%, 40.32% and 25.57%, respectively. 26 kinds of FA were identified. There were 6 kinds of SFA, 20 kinds of UFA. The contents of SFA, MUFA and PUFA were 26.26%, 29.61% and 39.91%, respectively. The contents of DG, TG, FFA, Cho and PL were 3.69%, 11.71%, 23.60%, 0.54% and 60.46%, respectively. Conclusion The crude protein and PUFA were high in muscle of Culter erythropterus. It was beneficial for health to eat it regularly.

Objectives To summarize and analyze the characteristics ofspina bifida occulta in prenatal ultrasound scan in order to improve the accuracy of diagnosis.Methods Sixteen singleton pregnant women with fetal spina bifida occulta who were diagnosed in the Ultrasonography Department of Dalian Maternal and Child Health Hospital from January 2014 to April 2015,were enrolled in this study.Diagnosis was made based upon the abnormalities found in the spinal column of fetus during routine ultrasound scan,followed by a close examination on the fetal spinal column and the position of conus medullaris by using multiple scan.Descriptive analysis was used to summarize the characteristics of spina bifida occulta in ultrasonic images.Results Among the 16 cases,12 had subcutaneous mass (nine cases had follicle-like anechoic mass and three cases had masses with strong echoes).The other four cases without subcutaneous mass manifested signs of disappeared physiological curvatures or disordered arrangement of spinal column,angulation deformity or scoliosis,or asymmetry in ossification centers of spinal column on both sides of lesions and lowered position of conus medullaris.Lemon shaped head and banana shaped cerebellum were seen in one case,while the other 15 cases were found no cerebral abnormalities.Eight cases had tethered cord (the position of conus medullaris was lower than the second lumber vertebra),six cases had unclear position of conus medullaris and the other two were normal.Diagnoses for all of the 16 cases were confirmed by MRI after delivery or autopsy or neonatal operation.Conclusions Abnormalities such as subcutaneous mass and tethered cord observed in prenatal ultrasound scan are significant indicators for suspected closed spinal dysraphism and further multiple scan is required to confirm the diagnosis.

Objective:To construct a eukaryotic expression vector of leptin gene,and to transfect it into human placental mesenchy-mal stem cells(HPMSCs)and appraise its expression.Methods:Primers were designed and the leptin gene was obtained by RT-PCR from human adipose tissue.The aimed segments were inserted into the eukaryotic expression vector pIRES2-EGFP,plasmid pIRES2-EGFP-LEP was constructed and identified by restricted enzymatic resection,and then transfected it into HPMSCs by liposome.The ex-pression of leptin in the transfected cells was detected by RT-PCR and Western blotting,the multi-differentiation potential of the cells was indentified.Results:The length of specific fragment was 500 bp,the recombinant plasmid pIRES2-EGFP-LEP presented 5.3 kb and 500 bp bands by restriction enzyme digestion.Leptin gene was expressed in transfected HPMSCs and the transfected HPMSCs maintained multi-directional differentiation potential.Conclusion:The eukaryotic expression vector of leptin can be transfected and ex-pressed in HPMSCs.

Objective:To explore protective effect of atorvastatin on blood vessels in early stage of atherosclerosis (AS).Methods:A total of 120 patients without AS plaques,who had >2 cardiovascular risk factors and received control cardiovascular risk factors therapy,were randomly divided into four groups:control group (did not receive atorvastatin),atorvastatin 5mg group,10mg group and 20mg group (received corresponding dose of atorvastatin). All patients were followed up for six months,changes of thromboxane B2 (TXB2),6-Keto-prostaglandin F1α (6-Keto-PGF1α),brachial-ankle pulse wave velocity (baPWV),ankle brachial index (ABI)and intima-media thickness (IMT)were observed.Results:There were no significant changes in ABI and IMT between before and after treat-ment among four groups (P >0.05 all).Compared with baseline,TXB2、baPWV levels significantly rose,6-Keto-PGF1αlevel significantly decreased after treatment in control group and 5mg group;in contrast,TXB2、baPWV lev-els significantly decreased,6-Keto-PGF1αlevel significantly rose after treatment in 10mg group and 20mg group(P <0.05~ < 0.01).After treatment six-month,compared with control group and 5mg group,the TXB2 [(148.3 ± 29.2)pg/ml,(142.3±30.6)pg/ml vs.(111.5±22.8)pg/ml,(104.9 ± 17.4)pg/ml]、baPWV[(1621.1 ± 136.1) cm/s,(1597.7±125.3)cm/s vs.(1232.9±132.3)cm/s,(1178.2±155.1)cm/s]levels significantly decreased,6-Keto-PGF1α[(104.7±66.1)pg/ml,(102.2±70.3)pg/ml vs.(132.8±48.3)pg/ml,(139.1±66.3)pg/ml]level significantly rose(P <0.05~<0.01)in 10 mg group and 20 mg group.Conclusion:Atorvastatin has protective effect on blood vessels in early stage of atherosclerosis,and 10mg atorvastatin may be the minimum effective dosage to protect blood vessels.

Objective To analyze the spatial-time distribution characteristics of schistosomiasis in Jiangling County ,Hubei Province from 2006 to 2011. Methods The surveillance data of schistosomiasis of Jiangling County from 2006 to 2011 were col-lected,and a spatial database was established. The spatial-time permutation cluster analysis was performed by SaTScan 9.1.1 to detect the spatial-time cluster areas of schistosomiasis,and a risk map was drawn by ArcGIS 10.0. Results Compared to 2006, the infection rates of human,cattle and Oncomelania hupensis snails decreased by 47.67%,93.34%and 52.41%,respectively in 2011. The space-time permutation clustering analysis of the infection rates of human,cattle and snails showed 4,3 and 4 clusters,respectively,and all the clustered areas were distributed in inner embankment areas. Conclusions From 2006 to 2011,the schistosomiasis endemic situation presents a decline trend in Jiangling County. The detected cluster areas are the im-portant areas for schistosomiasis control. The space-time permutation statistics could be used in the analysis of endemic situation of schistosomiasis.

Objective To observe the level of supportive care need and quality of life in patients postoperation for breast cancer and ac-cepting chemotherapy, and the relationship between them. Methods From September, 2015 to June, 2016, 235 patients with breast cancer af-ter surgery were conveniently sampled, and investigated with the general situation questionnaire, Supportive Care Need Survey Short-form (SCNS-SF34) and Functional Assessment of Cancer Therapy-Breast (FACT-B). Results A total of 230 patients were analyzed. Patients self-reported to need supportive care in all dimensions of SCNS-SF34, and the most frequency was in the health information (31.30％). The score of FACT-B was (93.25±23.53), that needed further improvement. The needs of supportive care in each dimension negatively correlat-ed with the scores of FACT-B in the dimensions (|r|>0.168, P<0.05) except society/family and function. Conclusion The patients with breast cancer need variety of supportive care, which may impact their quality of life.

Objective To investigate the effect of Desert Hedgehog on direct differentiation of neural progenitor cells(NPCs) cultured from embryonic mesencephalon in the rats.Methods We infected DHH into COS7,NIH/3T3 and 9L cells,and detected the expression of DHH in the cells with immunofluorescence,real-time PCR and Western blot.All of the three cells were co-cultured with NPCs isolated from ventral mesencephalon in embryonic SD rats(E13.5) respectively.Immunoreactivities of tyrosine hydroxylase(TH) was detected by immunocytochemistry after 10 days.Results The expression of DHH in COS7,NIH/3T3 and 9L cells was remarkably detected,but few TH-positive cells were found in the three co-cultral systems at the 10th day.Conclusion The protein derived from DHH itself does not show any inductive effect on the differentiation of NPCs to the dopaminergic neurons in vitro.

Objective To explore the mechanisms of trafficking and signaling of serotonin 1A receptor(5-HT_(1A))and its spatiotemporal distribution in living cells.Methods The mouse 5-HT_(1A) gene amplified by RT-PCR was recombined into pEGFP-N1 vector and the EGFP coding sequence was located in-frame at the C-terminal end of the 5-HT_(1A) receptor.The 5-HT_(1A)-EGFP was transfected into neuron-like PC12 cells as well as HEK293.The transfected cells were visualized using confocal microscopy,the mobility of 5-HT_(1A)-EGFP was monitored by live measurements and fluorescence recovery after photobleaching.Results The 5-HT_(1A) gene was identitical with the published gene sequence NM_008308.4 and a 5-HT_(1A)-EGFP fusion construct was created.After stable transfection of the plasimd into a PC12 cell line and analysis with a confocal laser scanning microscopy,the EGFP-tagged 5-HT_(1A) was predominantly associated with the plasma membrane,but some intracellular vesicles in the perinuclear region also contained the fusion protein.The predominant localization of 5-HT_(1A)-EGFP at the plasma membrane was confirmed in transiently transfected HEK293 cells.Bleached fluorescence was partialy recovered in 100 seconds,indicating that the 5-HT_(1A)-EGFP was mobiled on the membrane.Conclusion Spatiotemporal distribution and mobility of 5-HT_(1A) tagged with EGFP can be monitored in the 5-HT_(1A)-EGFP stable PC12 cell line,which could be an excellent neuron-like experimental cell model for research of 5-HT_(1A) trafficking and signaling.

Objective To investigate the mediating effect of coping styles in the relationship between psychological resilience and psychological stress among ocean-going seafarers. Methods A total of 502 ocean-going seafarers were selected as the study subjects using the convenience sampling method. Psychological resilience, psychological stress, and coping styles were assessed using the Connor-Davidson Resilience Scale, Military Psychological Stress Self-Assessment Scale and Simplified Coping Style Questionnaire. The structural equation modeling was performed using Amos 21.0 software to verify the mediating effect. Results The median and the 25th and 75th percentiles scores of psychological resilience, psychological stress, positive coping and negative coping among ocean-going sailors were 75.0 (58.0, 90.0), 47.8 (40.6, 55.6), 2.0 (1.6, 2.7), and 1.0 (0.5, 1.6) points, respectively. The scores of psychological resilience were negatively correlated with those of psychological stress and negative coping styles [Spearman correlation coefficients (r_S) were -0.57 and -0.50, respectively, both P<0.01]. The scores of psychological resilience were positively correlated with those of positive coping styles (r_S=0.57, P<0.01). The score of psychological stress was positively correlated with the score of negative coping style (r_S=0.50, P<0.01) and negatively correlated with the score of positive coping style (r_S=-0.44, P<0.01). The results of the structural equation model showed that psychological resilience directly affected psychological stress, with the direct effect accounting for 37.7% of the total effect. Psychological resilience indirectly affected psychological stress via positive and negative coping styles, with a total mediating effect accounting for 62.3% of the total effect, with the positive coping style and negative coping style accounting for 51.7% and 48.3% of the total mediating effect, respectively. Conclusion Coping styles play a parallel multiple mediating role in the relationship between psychological resilience and psychological stress among ocean-going seafarers.