Objective To assess the safety of living environment by the elderly, further clarify the relevant factors of the elderly fall in the living environment. Methods The self- made assessment form of fall-related factors of living environment for elderly patients was used to survey 1 076 elderly. Likert five grades score was used for each item, and the higher score demonstrated the safer living environment. Results In the assessment of the safety of living environment, the indoor physical environment (3.94 points), home furniture safety (3.66 points) score was better;home ground and the channel (3.32 points) and outdoor activities places (3.57 points) score was lower. Scores of home′s ground and channel, furniture safety, indoor physical environment and living environment of urban elderly were (23.56 ± 6.49), (44.52 ± 7.72), (11.93 ± 2.49), (105.03 ± 17.82) points, which were better than (22.46 ± 6.39), (42.73 ± 7.95), (11.53 ± 2.39), (101.55 ± 18.15) points of rural elderly (t=2.471-3.495, P <0.05). Conclusions The indoor physical environment, home furniture safety got higher scores, and the scores of ground-channel environment and outdoor activities places were relatively lower. Scores of the safety of living environment in urban are better than in rural. It suggests the elderly living environment need to reduce the incidence of falls.

OBJECTIVE:To observe clinical efficacy and safety of milrinone in the treatment of persistent pulmonary hyperten-sion of newborn. METHODS:52 newborns with persistent pulmonary hypertension were divided into control group and observa-tion group according to random number table,with 26 cases in each group. The control group were given mechanical ventilation and intravenous prostaglandin therapy. Observation group was treated with Milrinone injection at loading dose of 50 μg/kg,10 min intravenous injection,maintenance dose of 0.75 μg/(kg·min). Both groups received treatment for 48 h. Clinical efficacies of 2 groups were compared as well as SpO2,PaO2,OI,PAP,PAMP and SV before and after treatment. The occurrence of ADR was compared between 2 groups. RESULTS:Total effective rate of observation group was 92.31%,which was significantly higher than 80.77% of control group,with statistical significance (P<0.05). Before treatment,there was no statistical significance in SpO2,PaO2,OI,PAP,PAMP and SV levels between 2 groups(P>0.05). After treatment,above indexes of 2 groups were im-proved significantly;SpO2,PaO2,OI and SV levels of observation group were significantly higher than those of control group, while PAP and PAMP levels were significantly lower than those of control group,with statistical significance(P<0.05). No obvi-ous ADR was found in 2 groups. CONCLUSIONS:Milrinone shows significant therapeutic efficacy in the treatment of persistent pulmonary hypertension of newborn,and can significantly improve persistent pulmonary hypertension and increased oxygen con-tent of blood with good safety.

In order to carry out subject librarian service and improve electronic literature service in hospital libraries, the utilization of electronic literature databases in 240 clinical nurses of class A and B hospitals in Jinan, Qingdao and Jining was investigated with questionnaire, which showed the new features of clinical nurses in awareness and utilization of electronic literature databases under the new turn of hospital class evaluation.

Objective To discover the common characteristics of award winning medical and health science and technology achievements in Shandong province,and provide a useful reference for the Medical Science Research Management.Methods Statistical analysis was conducted on the 2014 Shandong provincial science and technology award winning projects of medical and health.Results The rate of award winning in Shandong Provincial Science and Technology Award in 2014 was 37.42％,and declared the results of medical and health category winner was 27.91％.While the winners percentage was 35.23％-58.59％ in surrounding eight provinces in the same year.In the awarding group,the innovation points,popularize and applying in scientific and technical achievements,patent for invention,professional inventions,authorized patents within 5 years,SCI publication and its number within 5 years in turn was 3.79,1.25,1.81,1.81,1.83,5.48 and 4.23,respectively.In contrast,the numbers in the non-awarding group was 3.36,0.81,0.86,0.99,0.93,3.40 and 2.76.Conclusions Shandong Provincial Science and Technology Award is very competitive to win and is more difficult for the medical and health class.It is helpful with an original innovation achievement,such as service in-ventions or SCI publications within 5 years.The focus of Medical Science Research Management should be made accordingly adaptation.

Word frequency and co-word analysis of key words and comparative analysis of hot spots and topics in core journals-published papers on health policy in China from 2004 to 2008 and from 2009 to 2013 showed that health policy research and health system reform promoted each other and developed with each other, the research tipics on health policy were scattered and expanded rapidly , the focus of researches was more clear with stress laid on their macro-aspects, and the research methods were variable.

Technologies for the trans-institutional sharing of scientific data were studied with the sharing of nucleic acid sequence data as the study object , such as leaving a flexible space for implementation of the unified standards in working out the criteria for data sharing , implementing regular point to point data sharing and updating in agree-ment of institutional league , and providing multiple data services according to the unified working process by giving considerations to the local demands .The significance of trans-institutional sharing of scientific data under the insti-tutional league model was summarized for the reference in constructing the scientific datasharing platform.

OBJECTIVE:To evaluate the feasibility of using CYP2C19 gene to guide the use of antiplatelet agents in acute cor-onary syndrome(ACS)patients undergoing interventional operation in China from the viewpoint of pharmacoeconomics. METH-ODS:Based on global PLATO trial data,the patients were divided into 3 groups according to treatment strategies(clopidogrel group,ticagrelor group,genetic test group). By applying Treeage Pro 2011 software,short-term decision tree model and long-term Markov model were established,and related data were imported to evaluate cost-effectiveness of different treatment strategies. RE-SULTS&CONCLUSIONS:For ACS patients,according to the level of GDP in China,conventional use of ticagrelor is of pharma-coeconomic advantage for in Shanghai and uninsured patients insured patients;the use of antiplatelet agents guided by CYP2C19 gene test is of pharmacoeconomic advantage among nationwide insured patients.

Intravascular ultrasound (IVUS) is widely used in coronary artery examination. Ultrasonic elastography combined with IVUS is very conspicuous in identifying plaque component and in detecting plaque vulnerability degree. In this study, a simulation model of the blood vessel based on finite element analysis (FEA) was established. The vessel walls generally have radial changes caused by different intravascular pressure. The signals at lower pressures were used as the pre-deformation data and the signals at higher pressure were used as the post-deformation data. Displacement distribution was constructed using the time-domain cross-correlation method, and then strain images. By comparison of elastograms under different pressures, we obtained the optimal pressure step. Furthermore, on the basis of the obtained optimize pressure step, the simulation results showed that this method could effectively distinguish characteristics between different component plaques, and could guide the later experiments and clinical applications.
Angiography ; Arteries ; diagnostic imaging ; pathology ; Elasticity Imaging Techniques ; Finite Element Analysis ; Humans ; Plaque, Atherosclerotic ; diagnostic imaging ; Pressure

Objective To investigate the effects of transforming growth factorβ1(TGFβ1)and β3 (TGFβ3)gene transfer on MMP-2,MMP-9 and TIMP-1 expression in hepatic stellate cells(HSC-T6).Methods TGFβ1 and TGFβ3 expression plagmids were constructed.The recombinant expression plasmid pcDNA3.1(+)-=TGFβ1 and pcDNA3.1(+).TGFβ3 were transfected or cotransfected into HSC-T6.At 24,48 and 72 h after transfection,the expression of MMP-2,MMP-9 and TIMP-1 mRNA were detected by real-time quantitative PCR,and the expression of MMP-2,MMP-9 and TIMP-1 protein were detected by Western blot.The recombinant expression plasmid pcDNA3.1(+).TGFβ1 was transfected into HSC-T6,and positive clones were selected by G418.The positive clones were transfected by the recombinant expression plasmid pcDNA3.1(+).TGFβ1,and the expression of MMP-2,MMP-9 and TIMP-1 were detected at 48 h after transfection.Results After transfection with peDNA3.1-TGFβ1,MMP-2 and TIMP-1 increaged remarkably in HSC-T6 cells(P＜0.05),but MMP-9 remained at the sanle level;After transfection with pcDNA3.1-TGFβ3,expression levels of MMP-2,MMP-9 and TIMP-1 mRNA were not changed,but TIMP-1 protein increased remarkably(P＜0.05);in cotransfection group,the expression of MMP-2 was higher than that in the blank and the control groups(P＜0.05),but MMP-9 level was not changed and TIMP-1was decreased compared with that in the TGF-β1 transfection group(P＜0.05).After TGFβ3was transfected into positive clones,the change of MMP-2 wag not significant(P＞0.05).but MMP-9 increaged and TIMP-1 decreased significantly at 48 h after transfection(P＜0.05).Conclusions TGFB3 may inhibit liver fibrosis by increase the activity of MMP-2 and MMP-9,and decrease the activity of TIMP-1.

The purpose of this study is to investigate the effects of multiple-trough sampling design and nonlinear mixed effect modeling (NONMEM) algorithm on the estimation of population and individual pharmacokinetic parameters. Oxcarbazepine and tacrolimus were used as one-compartment and two-compartment model drugs, respectively. Seven sampling designs were investigated using various number of trough concentrations per individual ranging from 1-4. Monte Carlo simulations were performed to produce state-steady trough concentrations. One-compartment model was used to fit simulated data from oxcarbazepine and tacrolimus. The accuracy and precision of the estimated parameters were evaluated using the median prediction error (PE), the median absolute PE and boxplot. The results indicated that trough concentrations could yield reliable estimates of apparent clearance (CL/F). For oxcarbazepine, as the number of trough concentrations per subject increased, the accuracy and precision of CL/F, between-subject variability (BSV) of CL/F and residual variability (RUV) tended to be improved. For tacrolimus, however, although no improvement were observed in the accuracy of CL/F and BSV of CL/F, the PE distribution ranges were significantly narrowed and the RUV estimates were less bias and imprecise. In terms of algorithm, Monte Carlo importance sampling (IMP) and IMP assisted by mode a posteriori estimation (IMPMAP) were consistently better than other methods. Additionally, the sampling design had no significant effects on the individual parameter estimates, which were only depended on the interaction between BSV and RUV in various algorithms. Decreased in BSV and RUV levels can improve the accuracy and precision of the estimation for both population and individual pharmacokinetic parameter estimates.
Algorithms ; Bayes Theorem ; Carbamazepine ; analogs & derivatives ; pharmacokinetics ; Humans ; Immunosuppressive Agents ; pharmacokinetics ; Models, Biological ; Monte Carlo Method ; Nonlinear Dynamics ; Regression Analysis ; Tacrolimus ; pharmacokinetics