Objective:To study the cognitive characteristics of older women about the ethical issues and stipula-tion of test-tube baby technology. Methods:A survey was undertaken with 203 female patients, who were ran-domly selected from three hospitals in Xi′an accepted test-tube baby technology. The basic characteristics and ethical cognition regarding embryos, offspring, and informed consent were included in the questionnaire. Results:Female over 40 had a statistical significant higher score on the cognition of offspring (12. 48 ± 3. 08) and informed consent (13. 27 ± 2. 31) related ethical issues comparing to other age group (P<0. 05). Age, educational status, monthly income were statistically positive related to the scores of the Ethical Cognitive Scale ( P<0 . 05 ) . Conclu-sion:Older women paid more attention to medical risks and policy rules to test-tube baby. And they had a strong aspiration to obtain a child through surrogacy. For older women with low education, low-income, the ethical cog-nition was not ideal, hospitals should pay attention to the use of modern multimedia to help patients better under-stand related ethical issues in test-tube baby.

Objective:To reveal the status and characteristics of psychiatric nursing researches nearly five years in our country and provide some references for psychiatric nursing research development in our country in the future.Methods:The literatures related to psychiatric nursing from 2011 to 2015 were searched in China academic journal network publishing pool.Then the keywords frequency analysis and cluster analysis were conducted by using the bibliography co-occurrence analysis system (Bicomb2.0) and SPSS18.0 software and the analysis results were displayed visually.Results:In 8215 original keywords,after cleaning normatively,6643 keywords reserved finally,and there were 17 high frequency keywords among them.Through the word frequency analysis and cluster analysis,it is found that the psychiatric nursing research nearly five years in China could be classified into three major focus:psychiatric nursing safety management,psychological and rehabilitation nursing with schizophrenia patients,and promoting high quality nursing care to help improve the nursing quality.Conclusion:Psychiatric nursing research in China from 2011 to 2015 focuses on psychiatric nursing safety and quality management,and the patients with schizophrenia have been paid close attention,especially on their psychology and rehabilitation care.

Objective To evaluate economic benefits of maintenance for medical equipment.Methods According to the maintenance tour records taken by Institute of Drug and Instrument Control in 2007,economic benefits of 21 kinds of normal medical maintenance were analyzed by using the database of Excel 2003.Result The total benefit cost ratio was 2.73.Conclusion Investment in maintenance for medical equipment has great economic effect.

Bile duct injury is the most common complications of biliary surgery.With the development of tissue engineering,using artificial bile duct to treat the biliary tract disease has become the focus for the treatment of bile duct injury.This article summarizes the applications in clinical work and animal experiment of artificial bile ducts made of biological material,autologous tissue,non-absorbable polymer materials,as well as absorbable polymer materials in the clinical application and animal experiments.The advantageof each material is also discussed here.

Objective To conduct a systematic review on the need and experience of patients in end of life and provide evidence-based guidance for delivery of end-of-life care in hospital and community settings. Methods Two Chinese (CBM and CNKI) and four English relevant databases (PsycINFO,MEDLINE,EMbase and CINAHL) were in-cluded to retrieve literatures on Chinese dying patients' needs and experience between inception and August 2016. The JBI Critical Appraisal Tool for qualitative studies in Australia was used to evaluate the quality of studies. The searching results were synthesized by employing Integrating Methods. Results Seventy-five findings were extracted from 9 qualified studies. The 75 findings were sequently integrated into 5 categories and finally 2 synthesized re-sults were summarized from the 5 categories. Integration result 1:under the sufferings from both physical and psy-chological aspects,dying patients require support from both family and society. Integration result 2:although death is acceptable for patients,they still hope for dignity and goals of life. Conclusion Needs of patients in end-of-life should be understood and respected. Reasonable and effective measures need to be taken to meet their needs and improve their quality of life.

Objective To study the application and significance of constructivism theory in pathological experiment teaching.Methods Six classes in total of 198 students majoring in clinical medicine were selected from grade 2009 of Guangdong medical college for research and were divided into experimental group (n=99) and control group (n=99) using random number table.Various teaching methods based on constructivism theory were used in experimental group while conventional teaching methods were applied in control group.The observing ability for specimen and slices,theoretical level and learning behavior of students were assessed with the same standard and anonymous homemade questionnaire survey was executed for students.SPSS 13.0 statistical software was used to analyze the results.The examination results of the two groups were compared using independent samples t-test.The questionnaire survey results of the two groups were compared using Wilcoxon rank-sum test.P＜0.05 represented the difference having statistical significance.Results The observing capability for specimen and slices,theoretical level and learning behavior of students in experimental group were significantly improved (P＜0.01)and the questionnaire survey results demonstrated that there were statistical difference in feedbacks between the two groups and the satisfaction rate was significantly improved in experiment group (P＜0.01).Conclusions Applying comprehensive teaching methods based on constructivism theory can stimulate students' interest and initiative in learning,improve students' learning behavior and learning strategies,and significantly improve the teaching quality.

Objective:To establish the method for detecting lower respiratory infections (LRIs) bacterialpathogens using nanopore sequencing, and evaluate the feasibility of this method.Methods:Bronchoalveolar lavage fluid (BALF) samples from 33 patients with LRIs who visited the Department of Respiratory and Critical Care Medicine of Beijing Hospital from July 2019 to September 2020 were collected.Nanopore 16S amplicon sequencing were performed on these samples. In order to evaluate the clinical value of the nanopore sequencing, χ 2 test was used to analyze the pathogen differences between the detection rate and pathogen types results found with using the nanopore 16S sequencing and the results found with bacterial culture. Results:The process and method of nanopore sequencing used in the detection of the LRIs pathogens were established. The pathogen detection rate of the 16S sequencing was higher than that of the traditional bacterial culture (75.8% [25/33], 45.5% [15/33], χ2=5.140, P<0.05). From the 25 positive samples found with nanopore 16S sequencing, 16 pathogens were detected, including Haemophilus parainfluenzae, Haemophilus influenzae, Streptococcus pneumoniae, Streptomonas maltophilia, Acinetobacter baumannii, and Acinetobacter junii, Staphylococcus aureus, Klebsiella pneumoniae, Enterococcus faecalis, Enterococcus gallinarum, Corynebacterium striatum, Mycobacterium paraintracellulare, Serratia marcescens, Achromobacter insuavis, Citrobacter murliniae and Mycoplasma pneumoniae. More than 6 pathogens were tested in clinical culture, including Haemophilus parainfluenzae, Acinetobacter baumannii, Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella pneumoniae and Streptomonas maltophilia (χ2=7.949, P<0.05). 16S sequencing aligned to species level sequences accounted for 80.0 (60.0, 86.0)% of the genus level. The results obtained by using16S sequencing and bacterial culture were consistent in 11 (33.3%) samples. Conclusions:Nanopore 16S amplicon sequencing can quickly identify pathogenic bacteria from BALF in LRIs patients. Nanopore 16S amplicon sequencing has a high detection rate, it can detect more pathogens than traditional bacterial culture, and it can also identify most bacteria to the species level. This technology is a very promising platform with broad application prospects.

ucting the students to correct their attitudes to-ward learning, consolidate the professional thinking, intensify their critical thinking awareness, then further improve the masters' ability of critical thinking.

To establish single- and double-transfected transgenic cells stably expressing hMATE1, hMATE1 cDNA was cloned by RT-PCR from human cryopreserved kidney tissue, and subcloned into pcDNA3.1(+) plasmid by virtue of both HindIII and Kpn I restriction enzyme sites. Subsequently, the recombined pcDNA3.1(+)- hMATE1 plasmid was transfected into MDCK, MDCK-hOCT1 or MDCK-hOCT2 cells using Lipofectamine 2000 Reagent. After a 14-day-cultivation with hygromycin B at the concentration of 400 µg · mL(-1), all clones were screened with DAPI and MPP+ as substrates to identify the best candidate. The mRNA content of hMATE1, the cellular accumulation of metformin with or without cimetidine as inhibitor, or transportation of cimetidine was further valuated. The results showed that all of the three cell models over expressed hMATE1 mRNA. The cellular accumulation of metformin in MDCK-hMATE1 was 17.6 folds of the control cell, which was significantly inhibited by 100 µmol · L(-1) cimetidine. The transcellular transport parameter net efflux ratios of cimetidine across MDCK-hOCT1/hMATE1 and MDCK-hOCT2/hMATE1 monolayer were 17.5 and 3.65, respectively. In conclusion, cell models with good hMATE1 function have been established successfully, which can be applied to study the drug transport or drug-drug interaction involving hMATE1 alone or together with hOCT1/2 in vitro.

Pancreatic leakage is most common among numerous complications after pancreaticoduodenectomy surgery.Predicting at early stage and taking preventive measures in time are of great importance to reducing the incidence of pancreatic leakage as well as its related complications.The article reviewed pancreatic leakage monitoring related reports worldwide in recent 10 years.It was found that some factors were useful for the prediction of pancreatic leakage including the drainage fluid amylase and leukocyte count on postoperative day 1 and 3,C-reactive protein on postoperative day 3,the combined detection of white blood cells and albumin on postoperative day 4,the serum urea nitrogen and the serum albumin on postoperative day 1 and 5-8 days,as well as the ratio of amylase level in abdominal drainage to abdominal drainage volume.