As the new force among university faculties,the young faculties are the backbone of teaching and research activities in universities and the main information users concerned for information access.To understand the actual condition of information literacy of young faculties in Peking University Health Science Center and grasp their difficulties in getting access to information,this study analyses the information literacy of young faculties through investigating the status quo of their information capabilities,gathering their suggestions and opinions to enhance information capabilities and retrieval tests conducted among small-scale young faculties.The survey results show that 72％ of young faculties don't know or know little about the four biomedical literature retrieval databases and 47％ of them knowing nothing about CALIS.This suggests we should take measures to promote the information literacy of young faculties.

AIMTo elucidate possible mechanisms underlying the differences between 1S-[1a,2b,3b,4a(S*)]-4-[7-[[1-(3-chloro-2-thienyl)methylpropyl]propyl-amino]-3H-imidazo[4,5-b]pyridyl-3-yl]-N-ethyl-2,3-dihydroxycyclopentane carboxamide (AMP- 579) and adenosine in pharmacological and clinical effects. METHODSNa+/Ca2+ exchange current was recorded by patch-clamp technique in whole-cell configuration. RESULTSAMP579 significantly enhanced both outward and inward Na+/Ca2+ exchange currents in a concentration dependent manner. Neither infusion of an adenosine A1 receptor antagonist PD116948 30 μmol*L-1 or an adenosine A2 receptor antagonist DMPX 10 μmol*L-1 nor a protein kinase A special blocker KT 5720 0.2 μmol*L-1 or a protein kinase C special blocker GF 109203X 0.4 μmol*L-1 had effect on Na+/Ca2+exchange current increased by AMP579, suggesting that AMP579 possess a direct activating effect on Na+/Ca2+ exchange current. CONCLUSIONAMP579 possibly possesses a direct activating effect on Na+/Ca2+ exchange current.

Objective To investigate anti-hypertension threapy on seasonal variability of blood pressure,urinary 8-OHdG levels in essential hypertension in order to provide a basis for seasonal antihypertensive treatment.Methods Fifty hypertensive patients admitted the hospital of Erdos Clinical Medical College of Inner Mongolia Medical University at summer 2013 were selected as our subjects.The final subjects was 42 cases due to 8 lost cases.The patients were randomly divided into two groups,including 30 cases in renin angiotensin aldosterone system inhibitors(RASI) group and 12 cases in Ca2+ channel blocker(CCB) group.Epidata 3.1 software was applied to perform statistic analysis.Urinary 8-OHdG concentration was measured by enzyme-linked immunosorbent assay (ELISA).Blood pressure was measured in spring,summer,autumn and winter.Results Systolic blood pressure(SBP) in RASI group and CCB group at winter periods were (158±20) mmHg,(158 ± 20) mmHg,higher than that in summer periods ((145 ± 12) mmHg,(141 ± 9) mmHg;P＜ 0.05).Diastolic blood pressure(DPB) in RASI group and CCB group at winter periods were (101 ± 13)mmHg and (100±4)mmHg,significant high than that in summer periods ((93 ±7) mmHg,(90±7) mmHg;P＜0.05).8-OhdG levels in RASI group at summer and autumn periods were (243.20±30.94) ng/L and (240.40±47.99) ng/L,significantly higher than that in winter and spring periods((190.80± 15.56) ng/L and (189.06± 13.56) ng/L),and the differences were significant(P＜0.001).No significant differences were seen in CCB group among 4 seasons in terms of 8-OhdG levels (P ＞ 0.05).Conclusion Blood pressure change still occur among 4 seasons in hypertensive patients after a single CCB containing RASI-based drug antihypertensive therapy.And blood pressure in winter periods is higher than that in summer,which indicates that therapy medication based on RASI might reduce the level of oxidative stress at winter periods.

Objective To analyze the clinical features and risk factors for mortality of patients with severe fever with thrombocytopenia syndrome (SFTS) in Zhoushan, the eastern coastal of China with high incidence of severe fever with thrambocytopenia syndrome bunyavirus infection, to provide reference for reducing the mortality rate of SFTS.Methods Clinical data of 107 cases of SFTS from Zhoushan Hospital during June 2011 to June 2016 were retrospectively analyzed.According to the prognosis, patients were divided into survival group and death group.The clinical features and the laboratory results were analyzed with a case-control method to analyze the prognostic factors.Normal distribution data were compared with the independent t test.Kolmogorov-Smirnov Z test were used in data with skewness distribution.Categorical data were analyze by chi-square test.The related risk factors were analyzed with the receiver-operating characteristic (ROC) curve and multivariate unconditioned logistics regression analysis.Results Seventeen cases among 107 STFs patients died, yielding the mortality rate of 15.9%.The proportion of patients suffering from two or more underlying diseases, with disorders of consciousness, activated partial thromboplastin time (APTT), the level of creatine kinase (CK), lactate dehydrogenase (LDH) as well as sepsis-related or sequential organ failure assessment (SOFA) score in death group were all significantly higher than those in the survival group (all P<0.05).The Ca2+ level and fibrinogen level in death group were significantly lower than those in the survival group (both P<0.05).Indexes mentioned above were analyzed by ROC curve, and the calculated cut-off value was set as the optimal diagnostic thresholds.These data were then included into the multivariate logistic regression analysis.It turned out that Ca2+<1.625 mmol/L, APTT >73.45 s, SOFA scores >9 were the independent risk factors for mortality of SFTS (OR=6.947, 8.459 and 11.770, respectively, all P<0.05).Conclusion Ca2+, APTT and SOFA score are the independent risk factors for prognosis of SFTS, which provide reference for prognostic evaluation of SFTS.

There are some shortcomings of animal experiments applied in chemical toxicity testing, such as long period, large cost, species differences and dose differences, which limit the use of animal experiments' results in predicting human toxicity.Accordingly, we established a toxicity testing alternative screening system in line with the toxicity endpoints which required in chemical safety evaluation and risk assessment (genotoxicity, carcinogenicity, reproductive toxicity, acute toxicity and general toxicity) based on 3R principles (replacement, reduction, refinement) for animal experiments.This system covers most of the endpoints of toxicity assessment, and molecular biology technology was also applied to integrate the toxicity test, as well as some operation was optimized in order to shorten the experimental period, reduce experimental costs, improve animal welfare.Furthermore, the results from the screening system have higher clinical relevance because it is based on the toxicity mechanisms.

In view of the characteristics of the computerized system,the key points in the quality assurance (QA) of the computerized system was discussed and summarized combined with the requirements of the GLP laboratory in Europe and America.The validation of computerized system,the control during the use of computerized system,period maintenance and safety protection of computerized system,archives of electronic data was discussed,expecting to provide reference for the management of computerized system in Chinese GLP laboratory which is generally not high currently.The experiences were obtained as follow:Through repeated inspection and review,the problem was found and set as the risk point;a targeted QA inspection plan was made focusing on the risk-based inspection and the QA inspection plan was timely adjusted according to the problems,which ensures the pertinence and validity of the QA inspection.

Objective:To understand the research status and development trends on the application of virtual reality technology in nursing field at home and abroad, so as to provide a reference for the further development of virtual reality technology.Methods:Literatures related to the application of virtual reality in nursing field published from 2001 to 2021 from the China National Knowledge Infrastructure and Web of Science Core Collection were retrieved. Visualization analysis was conducted on the number of publications, journals, authors, institutions and keywords using CiteSpace 5.6. R2 software.Results:A total of 596 literatures were included, and the number of publications showed an rising trend. The number and scale of foreign core authors and core institutional groups were larger than those in China. The common hot keywords at home and abroad were education, pain, anxiety, rehabilitation, etc. Foreign research trends were telemedicine, inter-professional cooperation and so on, while domestic research trends were chronic care, continuity care, disaster care, etc.Conclusions:Domestic research on virtual reality technology is later than foreign research, however it has developed rapidly in the past 2 years, and the annual average number of published papers is gradually approaching that of foreign countries. Domestic and foreign authors and institutions need to strengthen cooperation. Relevant researches at home and abroad both focus on nursing education and clinical application. In addition, foreign countries pay more attention to the cooperation between various disciplinary teams, and China pays more attention to chronic disease management.

BACKGROUNDTo explore the role of transbronchial needle aspiration (TBNA) in the staging of bronchogenic carcinoma.

METHODSTo 42 cases of primary bronchogenic carcinoma with suspected lymph node metastasis by X-ray and CT scan of chest, the TBNA was performed before operation. The cytological results and c-TNM by TBNA were compared with the pathological ones and p-TNM after operation.

RESULTSThe diagnosis of 10 cases with N₂ metastasis was completely corresponding by TBNA and pathological examination after operation. Nineteen out of 22 cases with N₁ metastasis were confirmed by TBNA, and the false negative results ocurred in 3 cases. The results of TBNA in lymph nodes' size from 2 to 3 cm was completely accordant with pathological ones after operation. For 1 to 2 cm lymphnodes, the accurate rate of TBNA was 88.5% (23/26). The overall accurate rate of c-TNM by TBNA was 85.7% (36/42) compared with p-TNM. A small amount of hemoptysis ocurred in 3 cases, no pneumothorax and other serious complications were observed.

CONCLUSIONSThe TBNA for staging of bronchogenic carcinoma is a simple and economic method with high correct rate and high clinical applicable value.

OBJECTIVE: To study application of sternocleidomastoid myoperiosteal flap to reconstruction of the defect of cervical trachea. METHOD: Thirteen hospitalized patients with malignant neoplasm invading cervical trachea and primary tracheal carcinoma were analyzed retrospectively, the sternocleidomastoid myoperiosteal flap was applied to repair the defect of tracheal wall after resection of the neoplasm. RESULT: Among 10 tracheotomy patients, 9 cases were decannulated from 1 month to 5 months. One case needs cannulation because of tracheal stenosis. Three patients with no tracheotomy had no dyspnea after operation. CONCLUSION The sternocleidomastoid myoperiosteal flap is an ideal transplant for cervical tracheal reconstruction.
Aged ; Female ; Humans ; Male ; Middle Aged ; Pectoralis Muscles ; transplantation ; Periosteum ; transplantation ; Reconstructive Surgical Procedures ; methods ; Retrospective Studies ; Surgical Flaps ; Trachea ; pathology ; surgery

Objective Learning the dynamic changes of serum new Buniavirus IgM antibody of fever with thrombocytopenia syndrome cases to cover the missing of early diagnosis method for new Buniavirus nucleic acid detecting negative cases,provide the basis for clinical diagnosis and correct treatment.Methods Select the confirmed cases that the first serologic test results for the new Buniavirus nucleic acid testing is positive and negative for IgM antibody test,reserve the consecutive serum samples from patients which is taken every other day until leaving hospital,use Mac-ELISA method to detect the serum specimens of the new Buniavirus IgM seroconversion time and dynamic changes,and calculate the percentage of seroconversion time and the average seroconversion time.Results The new Buniavirus IgM seroconversion time proportions of the serum of the 16 patients who meet the requirements of the study after the onset of disease:5 d:2/16;7 d:6/16;9 d:9/16;11 d:10/16;13 d:12/16;15 d:16/16,and the average seroconversion time is 10.25 ± 3.58 days.Conclusions The serum new Buniavirus IgM antibody of the 16 fever with thrombocytopenia cases can be conversed as early as five days after the onset of disease and the latest with 15 days,then the density of the patient's serum antibody gradually increases after 基金 DOI:10.3760/cma.j.issn.1003-9279.2014.04.00 seroconversion and until 30 days after the disease can still maintain a high level.The convalescent serum IgG antibody titer of the 16 patients is 4 times more than the acute phase.New Buniavirus IgM antibodies detection can be used as an auxiliary method of the early diagnosis of fever with thrombocytopenia syndrome cases.