Objective To investigate the value of Doppl er tissue imaging (DTI) in detecting chronic ischemic myocardium before and after gene transfer. Methods An Ameroid constrictor was placed around the left circumflex artery of each open-chest pig. After 4 weeks, groupⅠandⅡwere intramyocardially administrated recombinant adenovirus coding for the vascular endothelial growth factors(Ad.VEGF-B) or phosphate buffer(PB). After 4 weeks, their hearts were removed for pathological investigation. Color M-mode, two-dimensional and spectrum DTI of lateral-posterior wall before operation, 2 weeks and 4 weeks after Ameroid placement, 2 weeks and 4 weeks after administration were studied. Results Color of normal myocardium was bright, filling and distinct stratified, and of ischemic myocardium faint, local lost and cloudy stratified. After gene transfer, color filling became better and stratification distinct. Normal V S of apical four chamber view (AP-4CV) was greater than that of left ventricular papillary muscle level short axis view (LVPM-SAM)(P

Ultrasound-based molecular imaging technique is a role in positioning based on the conventional ultrasonic detection technology in combination with the targeted ultrasound contrast agent.It is a new technology to detect the changes of target tissue molecular level in vivo state.This article reviews the principles of ultrasound-based molecular imaging and its application in the evaluations of early inflammatory response,neovascularization,and vulnerable plaque in carotid atherosclerosis.

Objective:To observe the influence of the CD96 and CD71 expressions in the surface of leukemia stem cells (LSC) in the therapeutic effects and prognosis of the children with acute leukemia,and to clarify the relationships between the molecular biological characteristics of LSC in the children with leukemia and their therapeutic effects and prognosis.Methods:Eighty children with acute leukemia were selected as the subjects.Among them, 39 cases were acute lymphoblastic leukemia (ALL) and 41 cases were acute myeloid leukemia (AML).The CD96 and CD71 expressions on the surface of LSC were detected with flow cytometry;the therapeutic effects of the first cycle chemotherapy, the survival rate of 5-year, the incidence of infection after chemotherapy, the recurrence rate after chemotherapy, and the incidence of extramedullary infiltration of the children were observed and compared.Results: The CD96 expression on the surface of LSC was positive in 38 cases (47.5%) and the CD71 expression on the surface of LSC was positive in 45 cases (56.3%);the difference of positive expression rates of CD96 and CD71 was not significant (χ2=1.227, P=0.268).The positive expression rates of CD96 and CD71 on the surface of LSC of the children with AML were significantly higher than those in the children with ALL, and the differences were statistically significant (χ2=22.225, χ2=34.028, P<0.01).The distribution of therapeutic effects and the clinical efficiency of the first cycle chemotherap, in the children with negative CD96 expression on the surface of LSC were superior to those with positive CD96 expression on the surface of LSC;the distribution of therapeutic effects and the clinical efficiency of the first cycle chemotherapy in the children with negative CD71 expression on the surface of LSC were superior than those with positive CD71 expression on the surface of LSC;the differences between two groups were statistically significant (χ2=11.323, χ2=16.589, P<0.05;U=2.939, U=2.291, P<0.05).The survival rate of 5-year in the children with negative CD96 expression on the surface of LSC was higher than those with positive CD96 expression;the incidence of infection after chemotherapy,the recurrence rate after chemotherapy and the incidence of extramedullary infiltration were lower than those with positive CD96 expression.The incidence of infection after chemotherapy and the recurrence rate after chemotherapy in the children with negative CD71 expression on the surface of LSC were lower than those with positive CD71 expression,and the differences between two groups were statistically significant (χ2=5.051,χ2=13.288, P<0.05).Conclusion: The expressions of CD96 and CD71 on the surface of LSC in the children with acute leukemia has relationship with the subtypes of the disease and the therapeutic effects of the first cycle chemotherapy, which can be used as markers for the diagnosis and evaluation of therapeutic effects.The expression level of CD96 is related to the prognosis of the patients, which can be used as an indicator for predicting the prognosis of patients.

Objective To study in patients with stable chronic obstructive pulmonary disease treatment, the use of Tiotropium Bromide Powder for Inhalation treatment combined with psychological intervention effect.Methods In 40 cases of patients with stable chronic obstructive pulmonary disease treatment using tiotropium bromide powder for inhalation, and classified as the control group, the other 40 patients in the control group based on the use of psychological intervention combined with treatment the treatment, and classified as the observation group, two groups of patients were in our hospital from January 2016 to January 2017.Results There was no significant difference in anxiety and depression of patients in the two groups before intervention, after the intervention group patients in the observation group improved significantly better;two groups of patients before intervention PaCO2, there was no significant difference in PaO2 index, after group intervention of patients in the observation group improved significantly better;compared two groups of patients with the treatment efficiency, the obvious observation group were higher, there were significant differences (P<0.05).Conclusion Tiotropium Bromide Powder for Inhalation combined psychological intervention treatment of patients with stable chronic pulmonary disease blocking was observed, which can improve the patient's condition, and improve the treatment effect, the patient's mental state adjustment also has a positive effect, it is worthy of reference.

AIM To identify potential amino acid residues that contribute to different catalytic characteristics of CYP2A6 and CYP2A13 enzymes in nicotine metabolism. METHODSWild type of CYP2A6 and CYP2A13 and their mutants CYP2A6V117A, CYP2A6G164H, CYP2A6I208S, CYP2A6R372H, CYP2A6S465P and CYP2A13A117V, CYP2A13H164G, CYP2A13S208I, CYP2A13H372A and CYP2A13P465S, were subjected kinetic analysis in nicotine 5'-hydroxylation. RESULTS For CYP2A6, substitution of isoleucine 208 to serine caused dramatic kinetic property changes with K_m and V_( max) varied from 62.25 μmol·L~(-1) and 6.53 mol·min~(-1)·moL~(-1) to 345 μmol·L~(-1) and 2.19 mol·min~(-1)·moL~(-1). However, the corresponding serine 208 to isoleucine mutation did not heavily affect the enzyme activity in CYP2A13. The histidine 372 to arginine mutation resulted in a remarkable catalytic efficiency decrease with K_m and V_( max) changes from 26.01 μmol·L~(-1) and 24.51 mol·min~(-1)·moL~(-1) to 148.7 μmol·L~(-1) and 6.11 mol·min~(-1)·moL~(-1) in CYP2A13, but the switching of argenine 372 to histidine did not show expected corresponding crucial influence in CYP2A6 activity. Substitutions on the other positions changed enzyme activities in different rates. CONCLUSION The isoleucine 208 is crucial to human CYP2A6, while the 372 histidine is a key amino acid residue for CYP2A13 in nicotine 5'-hydroxylation.

Objective To improve the quality of antibiotics prescriptions in outpatient and emergency departments, to reduce the irrational use of antimicrobial drugs and to improve the quality of pharmacy service through system of rational drug administration.MethodsAnalyzing and evaluating the data of irrational administration of antimicrobial drugs between 2014 and 2015.The data was collected by the system of rational drug administration.ResultsFrom 2014 to 2015, the qualified rate of antibiotics prescriptions increased from 95.40% to 98.71%.Different types of irrational use of antimicrobial agents significantly reduced.ConclusionThe application of system of rational drug administration can improve the qualified rate of antibiotics prescriptions in outpatient and emergency departments and can promote pharmacy service.

Objective: To establish porcine chronic ischemic myocardium model and to evaluate ultrasonic integrated backscatter(IBS) and Doppler tissue imaging(DTI) in detecting this model. Methods: An Ameroid constrictor was placed around the porcine proximal left circumflex artery. The calibrated average image intensity (%AⅡ), cyclic variation of IBS (CVIB), the subendo-epicardical gradient index (TGI) and the spectrum of left ventricular papillary muscle level short axis view (LVPM-SAM) and apical four chamber view (AP-4CV) were measured at normal state, 2 w, 4 w, 6 w and 8 w after Ameroid placement. Results: Normal %AⅡ, CVIB and TGI were 2.29?0.32,(9.69?2.22)dB and 0.22? 0.08 respectively. After Ameroid placement, the %AII increased gradually, the CVIB decreased gradually, and the decrease was higher in subepicardium than that in subendocardium. The most obvious decrease of TGI occurred from 2 w to 4 w after Ameroid placement and became zero at 8 w(P

Objective;To explore the relationship among parents' negative punishment,children's self-concept,and children's social behaviors.Methods;Data were collected from questionnaires given to a sample of 612 children from primary and secondary schools and their parents.Results;The structural equation modeling results showed parents' negative punishments could influence children's social behaviors directly and indirectly.In the indirect approach,through the mediating role of children's self-concept,parents' negative punishments could make a negative role on children's pro-social and aggressive behaviors,and a positive role on children's withdrawn behavior.In the direct approach,parents' negative punishments could make a positive effect on children's pro-social,aggressive and withdrawn behavior directly.Conclusion;Children's self-concept plays a mediating role between the relationship of parents' negative punishments and children's social behaviors.

Objective To examine the white matter microstructure alternations in the patients with generalized anxiety disorder (GAD) with diffusion weighted imaging.Methods 19 patients with GAD and 20 matched healthy controls were assessed using apparent diffusion coefficient (ADC) and exponential apparent diffusion coefficient (eADC) in the regions of interests (ROIs) approach.The ROIs were the white matter of bilateral cingulate and bilateral hippocampus.Results Significantly increased ADC values were found in GAD patients (0.78±0.02,0.79±0.03) with respect to normal controls in the right and left anterior cingulate white matter.Significantly decreased eADC values were found in GAD patients (0.46±0.01,0.45±0.01) in the right and left anterior cingulate white matter.Conclusion Diffuse cingulate white matter alterations on DWI in GAD denote the disruption of white matter integrity.

Objective To observe the perfusion changes of porcine chronic ischemic myocardium before and after gene transfer by myocardial contrast. Methods Ten normal pigs were divided into two groups: groupⅠfor gene transfer(6 pigs) and groupⅡ for control(4 pigs). Myocardial contrasts were performed respectively in basic status, 4 weeks after an Ameroid constrictor was placed around the proximal left circumflex artery (LCX) and another 4 weeks after the replication deficient recombinant adenovirus coding for the vascular endothelial growth factors (Ad. VEGF)was administrated into the regional ischemic myocardium in groupⅠ, and the phosphate buffer(PB) was administrated into similar situs in groupⅡ. The perfusion of above mentioned different blood supply myocardium was observed with HP Sonos 5500 and S4 transducer by myocardial contrast. Results The normal left ventricular myocardial wall was uniformly thick and its perfusion was bright and well filling. The chronic ischemic myocardium was thinned and its echo showed the contrast defect. The echo of the myocardium for gene transfer returned to good, but the echo of the control group remained bad including some bright bits and pieces. Conclusions The blood supply of the porcine chronic ischemic myocardium was ameliorated by gene transfer. The perfusion characters of the different blood supply myocardium can objectively reflect the blood supply status of the myocardium.