黄芪-当归药对益气活血作用的药效物质基础

目的：探讨黄芪-当归药对（3∶1）对气虚血瘀模型大鼠的益气活血作用,从特征图谱、药效物质辨识、入血成分对比三方面入手,为临床合理用药及复方药效物质辨识与质量控制提供理论依据。方法：使用高效液相色谱法（HPLC）建立黄芪-当归（3∶1）指纹图谱,采用超高效液相色谱-四级杆-静电场轨道阱联用技术（UPLC-Q-Exactive Orbitrap-MS）分析水煎液成分;选用SPF级成年雄性Wistar大鼠,随机分为空白组、模型组、黄芪-当归3∶1组及黄芪-当归5∶1组,每日通过控制食量及凉水游泳制备气虚血瘀模型,同时各组每天给药（水）1次,给药组剂量10.2 g·kg-1,模型组和空白组给予等量的蒸馏水,连续15 d。观察大鼠一般状况;记录各组大鼠体质量,全血及血浆黏度,胸腺指数和脾脏指数,血清中三磷酸腺苷（ATP）、二磷酸腺苷（ADP）、大鼠血管性血友病因子（vWF）水平及ATP/ADP值;苏木素-伊红（HE）及扫描电镜观察血管内皮形态;UPLC-QExactive Orbitrap-MS分析血清中的原型及代谢成分。结果：建立了黄芪-当归（3∶1）指纹图谱;UPLC-Q-Exactive ...     

Building a Methodological Foundation for Impactful Urban Planetary Health Science

Anthropogenic environmental change will heavily impact cities, yet associated health risks will depend significantly on decisions made by urban leaders across a wide range of non-health sectors, including transport, energy, housing, basic urban services, and others. A subset of planetary health researchers focus on understanding the urban health impacts of global environmental change, and how these vary globally and within cities. Such researchers increasingly adopt collaborative transdisciplinary approaches to engage policy-makers, private citizens, and other actors in identifying and evaluating potential policy solutions that will reduce environmental impacts in ways that simultaneously promote health, equity, and/or local economies—in other words, maximising ‘co-benefits’. This report presents observations from a participatory workshop focused on challenges and opportunities for urban planetary health research. The workshop, held at the 16th International Conference on Urban Health (ICUH) in Xiamen, China, in November 2019, brought together 49 participants and covered topics related to collaboration, data, and research impact. It featured research projects funded by the Wellcome Trust’s Our Planet Our Health (OPOH) programme. This report aims to concisely summarise and disseminate participants’ collective contributions to current methodological practice in urban planetary health research.     

2013年-2017年我国血站收入的结构变动情况分析△

目的：对我国不同类型血站的收入状况进行问卷调查和深度访谈,分析近年来我国血站收入结构变动情况及特征,找到影响血站收入结构变动的主要项目,合理优化血站收入结构。方法：2018 年8月采用普查的方法对全国353家（32 家血液中心、321 家中心血站）的收入状况进行问卷调查,同时选取山东省6地市中心血站的负责人进行深度访谈。对收集的血站收入数据,运用结构变动方法进行分析。 结果：2013年-2017年公益一类血站收入的结构变动度为24.22%,财政补助收入、事业收入是构成公益一类血站收入变动的主要来源,其中财政补助收入的贡献率53.20%;2013年-2017年我国公益二类血站收入的结构变动度为16.79%,财政补助收入、事业收入是构成公益二类血站收入变动的主要来源,其中贡献率最大的是事业收入49.99%。结论：财政补助收入、事业收入是影响血站收入结构变动的主要项目,两类血站的日常运营与建设对财政补助收入高度依赖,公益二类经营收入增幅不明显,发展不足。     

医疗器械临床试验准入评估模型构建及应用

依据《医疗器械临床试验质量管理规范》,参考丹麦卫生技术评估中心制定的Mini-卫生技术评估清单,结合医院实际,建立了医疗器械临床试验准入评估模型。该模型主要包括医院评估、器械评估、患者评估、机构评估及经济评估等5项指标、26项内容。实际应用中,确保了所承接的临床试验能在规定时间节点内顺利完成,并保障了试验质量和受益者权益。     

新型冠状病毒肺炎下护理人员心理状况调查及应对策略研究

目的 了解郑州市新型冠状病毒肺炎患者定点收治医院护理人员的心理状况,从而为应对突发公共卫生事件医务人员的心理卫生、心理干预咨询提供参考的理论依据及指导.方法 选择本市新型冠状病毒肺炎疑似及确诊患者定点救治医院护理人员,共收集到462名护理人员信息,采用填写网络问卷SCL-90量表的方法进行调查,并与常模数据做对比,用SPSS19.0统计软件进行统计分析.结果 最终完成436名护理人员调查统计与分析,SCL-90量表总得分为(144.51±36.20),高于1986年全国常模(129.96±38.26)分以及2006年全国常模(130.021±33.626)分.其中,躯体化、强迫、抑郁、焦虑、恐怖因子分高于护士常模(P＜0.05)及全国常模(P＜0.05).结论 新型冠状病毒肺炎疫情期间,本市护理人员存在一定的心理压力.我们应注意到护理人员的心理压力以及引起压力的主要危险因素,并采取积极有效的方式应对,采取针对性措施进行疏导,减轻护理人员的心理压力,保证护理人员工作有效顺利进行.     

氦氖激光对小鼠小脑信息传递物质一氧化氮及环磷酸鸟苷含量的影响

目的：研究低功率氦氖激光对小鼠小脑信息传递物质的影响。方法：采用雄性BALB／C小鼠,随机分为对照组,辐射后即刻组、1h组、2h组,注入氮氖合酶（NOS）抑制剂的辐射后即刻组、副射后1h组,用波长632．8nm、功率密度5mW/cm^2连续氦氖激光每天局部辐射1次,每次1h,连续5d。对照辐射功率密度为0。结果：辐射组分别于辐射后即刻、1h小脑组织中一氧化氮（NO）代谢产物亚硝酸根（NO2^-)及环磷酸鸟苷（cGMP)含量均升高（P＜0．01）,辐射2h二者均降至正常,此增高效应可同时被NOS抑制剂阻断。结论：低功率氦氖激光可使小鼠小脑NO代谢产物NO2^-及cGMP含量短暂性升高,在氦氖激光辐射产生的生物学效应中涉及NO／cGMP信息传递机制。     

Clinical significance of magnetic resonance imaging of bone marrow in patients with leukemia

Acute leukemia is a clonal malignancy ofhematopoietic tissue characterized by proliferation ofabnormalblastcellsin the bone marrow and impairedproduction of normal blood cells.Magnetic resonanceimaging( MRI) isuseful in characterizing normal andabnormal bone marrow ( BM) because of its ability todistinguish fatfrom denser,more cellulartissuessuchas leukemia.MRIalso presentsa more global view ofthe BM than biopsy materials and,therefore,mayprovide a better understanding of diffuse hematopoi-…     

尿液结合性胆红素的纯化

OBJECTIVES: To develop a simple, practical method with fine yield and purity for separating conjugated bilirubin(Bc) from a sustainable and facile material in order that it could serve as a calibrator for total and direct bilirubin determination. METHODS: Isolating Bc from urine of patients with obstructive jaundice by CHCl3: CH3CH2OH(1:1, V/V) followed by CNBr activated Sepharose 4B-HAS affinity chromatography, we analyzed the products by the use of Doumas J-G diazo method and HPLC, respectively. RESULTS: Determined by J-G diazo method, the crude product extracted by CHCl3: CH3CH2OH(1:1, V/V) yields 90.2 +/- 5.4%(n = 3) of urine Bc, the ratio of Bc to total dry weight being 67.9 +/- 6.4%(n = 3). The final product purified by affinity chromatography with the ratio of separation of 1.5, 1.737 and analyzed by HPLC has the yield of 46.9% and purity of 94.7%(BDG of 76.2%, BMG of 18.5%). CONCLUSION: The above data demonstrate that urine conjugated bilirubin can be successfully purified by CHCl3: CH3CH2OH extraction followed by Sephrose-HSA affinity chromatography with sufficient purity and output.