Objective: To investigate the relationship of the terminal position of the muscular contraction path and centric relation position with different vertical dimension.Methods: The terminal position of the muscular contraction path and centric relation position with different vertical dimension were recorded for ten edentulous patients with gothic arch.Results: The mesial distance between the terminal position of the muscular contraction path and centric relation position increased with the vertical dimension.The lateral dimension between the terminal position of the muscular contraction path and centric relation position,the distribution of the terminal position of the muscular contraction path are not correlated to the vertical dimension.The center of the terminal position of the muscular contraction path is 1-4 mm ahead of the centric relation position and(0.42?0.47) mm lateral to the centric relation position.The distribution of the terminal position of the muscular contraction path is(1.36?0.58) mm in the mesial-distal direction,(1.56?0.62) mm in the lateral direction.Conclusion: With the increase of the vertical dimension,the mesial distance between the terminal position of the muscular contraction path and centric relation position increased.

Objective To investigate the morphological characteristics of vertebral-basilar artery in patients with posterior circulation ischemia vertigo. Methods The data of cerebrovascular disease related risk factors,neck CT angiography,and head MR angiography of 122 patients with posterior circulation ischemia vertigo and 60 non-vertigo volunteers with cerebrovascular disease related risk factors over the same period were analyzed retrospectively. The positive index of single factor comparison was analyzed by using multivariate logistic regression analysis. The risk factors for posterior circulation ischemia vertigo were screened,and the degree of vertebral artery stenosis and the degree of basilar artery tortuosity of the posterior circulation ischemia group were compared with those of the control group. Results (1 )The incidences of hypertension,hyperlipidemia,previous history of stroke or transient ischemic attack,vertebral artery atherosclemtic stenosis,vertebral artery variation,and basilar artery tortuosity of the posterior circulation ischemia group were 59%(n=72),55. 7%(n=68),64. 8%(n=79),41. 0%(n=50),28. 7%(n=35),and 30. 3%(n=37),respectively,and they were all significant higher than 33. 3%(n=20),31. 7%(n=19),35. 0%(n=21),15. 0%(n=9),10. 0%(n=6),and 15. 0%(n=9)of the control group. There were significant differences (all P<0. 05). (2)Vertebral artery atherosclerotic stenosis (OR,3. 891, 95%CI 1. 721-8. 800,P <0. 01),vertebral artery variation (OR,3. 231,95%CI 1. 238-8. 432,P =0.017),and basilar artery tortuosity (OR,2. 664,95%CI 1. 189-5. 972,P=0. 017)were the independent risk factors for posterior circulation ischemic vertigo. The degrees of vertebral artery stenosis and basilar artery tortuosity of the posterior circulation ischemic group were higher than those of the control group. There were significant differences (all P<0. 05). There was significant difference in the vertebral artery dominance between the degree of basilar artery tortuosity ≥grade 2 and

The risk factor of dental fluorosis are mainly related to the cancen tration of fluoride in the drinking water,the supplements of fluoride,nutrition states and regime,the time of fluoride exposure.Other factor such as the period of mother's milk feeding,the altitude of resident,the environmental pollution,the education degree of parents,and the level of health service of the community are also contributed to the development of dental fluorosis.Besides,the knowledge of dentists,the health habits of individual,the condition of economic,and so on is somehow the risk factor of dental fluorosis.The chances of fluoride exposure will become more often as the prosperous of the society.Thus any health policy of the complement of fluoride should be adapted to local conditions.

0.05) in VAS and ramsay scale, but side effects were significantly different in group B compared with those in group S. Conclusion: The analgesia efficacy of S is same as B in maxillofacial postoperation, but side effects are more significantly in group B, and group S is more safe and handy.

Objective To explore the feasibility of the applicatoin of readout-segmented echo-planar imaging (RS-EPI) at 3.0T MR of the orbit DWI and compared with single-shot echo-planar imaging (SS-EPI).Methods Forty-two volunteers underwent both standard SS-EPI and RS-EPI DWI of the orbit at a 3.0T MR unit.Two sets of DWI images were independently qualitatively scored in the number of distinguishable normal structures,fat suppression,ghosting artifact and overall image quality.SNR of the vitreous body,geometric distortion ratio (GDR) in both anterior-posterior (AP) and right-left (RL) direction,and ADC value of the vitreous body and pons were also quantitatively calculated and compared between two sets of DWI images.The statistical analysis was performed.Results For qualitative assessment,the RS-EPI was superior to SS-EPI on the number of distinguishable normal structures (P=0.009 0),ghosting artifact (P＜0.000 1),and overall image quality (P＜0.000 1),while no significant difference was found on fat suppression (P=0.753 9).For quantitative assessment,RS-EPI had significantly lower GDR than the SS-EPI in both AP and RL direction (P=0.001 4,0.001 7).The SNR in RS-EPI was significantly lower than that of SS-EPI (P=0.004 0).Meanwhile,there was no significant difference of ADC on vitreous body and pons between RS-EPI and SS-EPI (P=0.143 8,0.126 2).Conclusion The RS-EPI can provide better image quality than SS-EPI protocol in orbital DWI at 3.0T MR imaging.

Shanghai University of Traditional Chinese Medicine(T.C.M) researches into the measures of educating innovational students in order to heighten teaching energy and adapt to society need.The content refers to course plan,teaching content,teaching material,clinical teaching,teaching admin,campus culture and so on.According the result of research,we will keep on innovating to inspire innovational energy of students.

Objective To study the construction of tissue engineering adipose in vitro with silk fibroin scaffold and human umbilical cord mesenchymal stem cells (hUCMSCs) transfected by recombinant human insulin gene lentivirus.Methods hUCMSCs infected with recombinant lentiviral pLenti6.3-insulin-IRES-EGFP (Group A) by the best MOI=10 were seeded in silk fibroin scaffold; hUCMSCs transfected by EGFP gene (Group B)was regarded as negative control; and then the cell-scaf-fold complexes were cultured in adipogenic differentiation medium. MTT test was used to detect whether recombinant lentiviral affected the growth and proliferation of hUCMSCs and the growth activity of hUCMSCs seeded in silk fibroin.Results After 5-7 days for adipogenic culture,the numbers of fat-like cells in group A were significantly more than those in group B (P =0.007,P＜0.01).RTPCR results showed that the expression of PPARγ-2 in group A was much stronger than that in group B.MTT test showed that there was no significant difference in optical density (A)at each time between transfected group and nontransfected group (P=0.056,P＞0.05).And there was also no significant difference in optical density (A)between cell group and cell-scaffold group (P =0.066,P＞0.05).Conclusions Insulin gene could obviously promote hUCMSCs getting into adipose,and carrying recombinant human insulin gene lentiviral vector transfection of hUCMSCs and silk fibroin scaffolds could effectively construct tissue engineering adipose in vitro.

Objective To investigate the association between brain structure abnormalities and neuropsychology impairment in CAD patients.Methods Nineteen patients with CAD and 1 7 healthy adults were examed with MRI,and T1 WI,T2 WI,FLAIR,DWI and DKI image were performed,and then comparing the acquired MRI findings between two groups.Results Significant differences were observed for MK values in splenium and body of the corpus callosum,left cerebellar hemisphere and amygdala cerebelli.MK values of CAD group were lower than those of healthy group in these regions,and differences were statistically significant(P <0.05). There were significant correlation between MK values of the left amygdala cerebelli and MoCA scores in CAD group.Conclusion DKI could detect the changes of brain tissue microstructure in CAD patients early.The correlation between MK and neuropsychologi-cal function provides an important basis for early diagnosis and treatment.

Objective To determine the distribution of risk factors,the relationship between risk factors and chronic diseases and the order of intervention priorities of high-risk population,and to provide scientific evidence for the prevention and control of chronic diseases in different population within Xinjiang railway bureau.Methods A multi-stage stratified random sampling method was used to enroll 1 171 employees aged 18 and above from one region administered directly by the railway bureau and two other regions administered by the West Railway Station,on-site questionnaire interview and physical examination were conducted.Results The prevalence of dyslipidemia was the highest (380/1 171,32.45％),followed by hypertension (197/1 171,16.82％) and coronary atherosclerotic heart disease (75/1 171,6.40％).Age,family history,smoking,drinking,overweight and obesity,lack of physical exercise,unhealthy diet are major risk factors for chronic disease.Among the modifiable risk factors,percentage of subjects with smoking,drinking,overweight and unhealthy eating were 43.55％ (510/1 171),23.57％ (276/1 171),37.66％ (441/1 171) and 32.11％(376/1 171) respectively,the percentage of subjects with physical exercise was 38.60％(452/1 171).There were significant differences in smoking,drinking,obesity,physical exercise and unhealthy diets among different age groups (P＜0.05).In different education level,smoking rate of subjects at high school/ technical secondary school was significantly higher than those of college and above,High school/technical secondary school physical exercise rate is the lowest,36.87％ (212/575),junior college and above the lowest rate of poor diet,26.62％ (127/477).The smoking rate of diesel locomotive drivers,connecting workers are higher than other types of workers,the drinking rate of line workers,train inspection staff are higher than other types of workers,the obesity rate of diesel locomotive drivers,train inspection staff,station attendant are higher than other types of workers,the physical exercise rate of diesel locomotives drivers,conductor,truck inspection staff are lower than other types of workers.Conclusion intervention Priorities for chronic disease should be given to hypertension and dyslipidemia;production and frontline workers are a highcr risk.Intervention should focus on the top-five occupational groups ranked by the distribution of risk factors and prevalence of chronic diseases (diesel locomotive drivers,truck inspection staff,station attendants,train inspection staff and conductor).

Objective To understand the prevalence of disinfectant-resistant gene qacA/B in the clinical strains of methicillin-resistant Staphylococcus aureus (MRSA) .Methods A total of 123 clinical consecutive MRSA strains were collected for PCR assay to detect qacA/B gene and mecA gene .Results The qacA/B gene was identified in 19 (15 .4% ) of the 123 MRSA strains . The mecA gene was positive in 89 .4% (110/123) of the MRSA strains .Conclusions The disinfectant-resistant gene qacA/B is prevalent in the hospital-acquired MRSA strains .Monitoring measures should be strengthened for appropriate selection of disinfectants in clinical practice .