Objective To explore the effects of amiodarone on rapid ventrile rate atrial fibrillation (Af) in elder patients with acute myocardial infarction (AMI). Methods Besides the injection, an oral amiodarone was given to 96 elder patients,observing the condition of converting and maintaining of atrial fibrillation,ventricular rate controlling, blood pressure changing,mortality in 30 days and negative effects in 96 elder patients with AMI and Af. Results Eighty-two cases (84.4%) restore sinus rhythm, the cardioversion rate is 85.4%(P<0.01). 8 cases failed to cardioversion, 6 cases died . The ventricular rate were significantly lowered than before the treatment (P<0.01). All cases appeared no significant changes in blood pressure (P>0.05). Conclusion In AMI, vein plus oral application amiodarone treat the fast ventricular rate is effective and safety for patients with Af.

Objective:To evaluate the effects of primers on the bonding of an silicone elastomer to acrylic resin.Methods:Acrylic resin specimens were divided into eight groups.Six new primers and Cosmesil G611 primer were applied to the acrylic resin surfaces respectively.Untreated group was used as control.The shear bond strengths between silicone elastomer and acrylic resin were determined.D primer were measured by Forier transform infrared spectroscopy,and the bands were analyzed using spectrum method.Results:The experiment group with different concentration of ?-MPS showed different shear bond strengths between silicone elastomer and acrylic resin.Type D primer showed 2.20 MPa shear bond strength,which was significantly higher than that of other groups.While 1.44 MPa for Cosmesil G611 primer was found,there was no bond strength for untreated group.Conclusion:The concentration of ?-MPS is relative to the shear bond strength and type D primer can give the highest shear bond strength.

Objective:To evaluate the stress distribution and displacement pattern in the restoration of Stern-ERA attachment mandible removable partial denture (RPD) with different designs through three-dimensional (3D) finite element (FE) analysis.Methods:3D-FE models were established based on human CT data and manufacturer's catalog.Vertical and 45° lingual oblique forces of 100 N were applied on the artificial teeth of the RPD.Three ERA attachment partial dentures with different bracing arms were designed,namely the basic design,rest bracing arm design and cross-arch bracing arm design.The von Mises stresses and displacements of abutment teeth and mucosa under denture base were analysed.The displacement of denture bases was examined.Results:Under the vertical and oblique loading,the maximum yon Mises stress was found at the distal shoulder on the distal abutment.The maximun displacement was observed at the buccal and distal occlusal surfaces of the distal abutment.The maximum displacement on the abutment was found to be the highest in rest bracing arm design group (14.91 μm and 63.09 μm),followed by the basic design group (9.38 μm and 50.56 μm) and the cross-arch bracing arm design group exhibited the smallest displacement (8.85 μm and 47.31 μm).Conclusion:The basic design Stern_ERA attachment for unilateral mandible distal extension defect appears to be more reasonable compared with rest arm and crossing-arch arm design from biomechanical point of view.

Cerebral small vessel disease is a common cerebrovascular disease in clinical practice.It is mainly characterized by insidious onset and slow development.Some may have acute attack.The imaging features of cerebral small vessel disease mainly include cerebral white matter lesions,lacunar infarction,cerebral microbleed and cerebral perivascular space expansion.It is closely associated with cognitive impairment.All imaging findings can occur simultaneously and interact,further aggravate cognitive impairment,and ultimately lead to dementia.Therefore,the influence of cerebral small vessel disease on the quality of life and social function of the patients cannot be ignored.

Objective To establish the baseline data about gross α and gross β radioactivity in local foods through a preliminary investigation in Urumqi City.Methods The edible parts of six types of foods, including cereals, vegetables, fruit, nuts, meat and dairy food, were pretreated and sampled.MPC 9604 low background o and gross β measuring instrument was used for determination of gross α and gross β radioactivity.Results The natural gross ot and gross β radioactivity in the cereal, vegetables, fruits, nut, meat, dairy food were 0.88-10.80 and 22.20-148.67 in cereals, 1.17-24.24 and 21.41-318.84 in vegetables, 1.44-4.89 and 43.90-112.67 in fruits, 17.49-43.72 and 287.81-747.40 in nut, 3.04 -19.77 and 41.55-164.51 in meat, and 2.07-2.94 and 44.07-59.02 Bq/kg in milk, respectively.Conclusions There are some differences in the gross natural radioactivity between Urumqi and the other provinces and cities due to possible regional differences.In order to further ascertain baseline of natural radioactivity in food in Urumqi, larger sample sizes and more diverse food types are needed for purposes of dynamic monitoring.

Objective To observe the effects of sodium arsenite (NaAsO2) on apoptosis in primary cultured rat cerebellar granule cell and nerve globin mRNA expression.Methods Twenty 7-8 days postnatal Wistar rats were selected and decapitated cerebellar cortex, granular cell suspension was prepared and 4 × 109/m2 cells were seeded in the culture flask.Cells were exposed to different concentrations NaAsO2 [0 (control), 2, 5 and 10 μmol/L] for 24 h and intracellular reactive oxygen species (ROS) content and apoptosis were determined by laser confocal,while real-time quantitative PCR was used to detect mRNA expression in cultured cells after 24 and 48 h cell culture.Results Fluorescence intensity of ROS of 0, 2, 5, 10 μmol/L fluoride groups were 421.32 ± 53.52,1 082.09 ± 321.58, 2 223.02 ± 1 011.37 and 1 366.87 ± 102.14, the difference was statistically significant (F =5.873,P ＜ 0.05);Apoptosis rates were (8.91 ± 5.63)％, (26.46 ± 1.77)％, (43.65 ± 14.45)％ and (56.04 ± 6.95)％, the difference was statistically significant (F =18.369, P ＜ 0.05);24 h nerve globin mRNA expression were 1.00 ± 0.06,0.77 ± 0.22, 0.43 ± 0.18 and 0.42 ± 0.14, the difference was statistically significant (F =18.235, P ＜ 0.05);48 h nerve globin mRNA expression were 1.00 ± 0.01, 0.89 ± 0.09, 0.60 ± 0.16 and 0.08 ± 0.02, the difference was statistically significant (F =80.843, P ＜ 0.05).Conclusion With increased NaAsO2 concentration, ROS and apoptosis levels are increased, while nerve globin mRNA expression is significantly reduced, suggesting that after the body is stimulated, protective proteins might be consumed, further suggesting nerve globin expression might be involved in nerve damage caused by arsenic.

Objective To evaluate the relationship of thrombin activated fibrinolysis inhibitor (TAFI) in plasma with changes of coagulant and fibrinolytic function in type 2 diabetes.Methods The plasma level of TAFI was measured by ELISA, fibrinogen was analyzed with Clauss assay and plasminogen was detected by chromogenic assay.Results The plasma levels of TAFI, Fib and the activity of PLG were significantly increased in type 2 diabetes with (P

Objective To study time-dependent degradation of DNA in lymphocytes in the human bloodstain in order to estimate aging of bloodstain.Methods Lymphocytes were isolated from the human bloodstain placed under room temperature and were analyzed by single-cell gel electrophoresis(SCGE).The percentage of DNA-degraded lymphocytes were calculated in the cloodstain placed at different time intervals from 0 to 72h under fluorescent microscope connected with auto-analysis-image system.Results The percentage of DNA degraded lymphocytes was closely correlated with time lapse within 72h.A regression equation was formulated with R=0.9522(P

Objective To explore the effect of Baogan Jiedu Granule on liver cell ultrastructure of model mice with acute liver injury induced by tetracycline.Methods Totally 60 mice were randomly divided into tetracycline model group,large-dosage,medium-dosage and small-dosage groups of Baogan Jiedu Granule,Ganlixin group and control group.Each group was respectively perfused with corresponding drug for 5 days and tetracycline was perfused once to make the model.The tissues were observed by electron microscope,and the liver cell ultrastructure was measured and analyzed by three-dimensional metrology.Results The amount of mitochondria Vv,heterochromatin Vv,mitochondria ?m,endoplasmic reticulum ?m and Golgi's apparatus ?m all obviously decreased in model group,while that of euchromatin Vv and lipid droplet Vv increased.Baogan Jiedu Granule could remarkably increase the amount of indexes referred above,and decrease the amount of euchromatin Vv and lipid droplet Vv.Conclusion Baogan Jiedu Granule can significantly ameliorate the pathologic change of liver cell ultrastructure,thus having a good hepatoprotective effect.