基于本体的多Agent语义挖掘系统

在分析语义W eb与本体需求的基础上,提出了基于本体的多A gent语义挖掘系统模型。该系统由用户A gent、匹配A gent、语义中间件、推理A gent、查询A gent、本体库以及语义信息源等组成。并且开发了基于本体的多A gent语义挖掘系统的实验原型,为下一步研究开发比较成熟的软件产品奠定了良好的基础。     

本体构建工具设计与实现

从基于已有资源的本体重用与本体转化的本体构建需求出发,结合国内外技术进展和本体构建工具研究现状,以WebProtégé类库为基础进行本体构建工具代码开发与功能实现。在实现过程中注重工具自动处理与人工审核相结合的交互模式,收集具体的样例数据验证所开发的本体构建工具可行性和易用性。     

本体构建工具Py2ONTO的设计与实现

目的：开发一个简单易用的本体构建工具Py2ONTO,探索人工方式和自动化方式相结合的本体构建方案。方法：通过将Owlready常用的底层函数封装为功能函数,在此基础上设计一个基于CSV模板的自动构建本体的流程,并在代码中提供功能函数的调用,通过BioPortal、MedPortal等本体数据库实现术语映射功能。结果：开发了基于Python的本体建设工具Py2ONTO,该工具可以通过命令行方式及Python脚本调用功能函数方式构建本体。通过该工具构建了两个本体,测试结果证明本文构建的本体满足其术语覆盖度和可推理性评估要求。结论：为本体构建提供了一种较为简单且可靠的选择,有助于科研人员构建高质量的本体。     

互操作性本体:智能精准医学的基础

近年来，互联网与物联网等技术的快速发展为探寻精准医学与人工智能之间的关联应用提供了战略机遇。然而，如何组织、集成和共享复杂异构的生物医学数据业已成为阻碍该领域发展的严重技术挑战。本体因其能够提供知识与元数据层面的语义基础而推动了生物医学人工智能的发展，而基于互操作性的本体对异构知识与数据的整合和分析发挥着关键性的作用。将人工智能与精准医疗的有机集合称之为智能精准医疗，并提出一个“河马假设”，用以阐明互操作性本体与智能精准医疗之间的正相关关系及如何发挥协同增效作用；同时，提出和展示了使用可扩展本体开发的原理和工具来实现本体的互操作性，进而支持智能精准医疗的应用与发展。此外，还对国内外互操作性本体的研究现状、本体中国的成立与发展以及医学伦理在智能精准医疗中的重要性等进行了综述和深入探讨。     

生物医学相关的本体研究现状

通过调查生物医学相关本体的文献,分析当前本体在生物医学上的研究现状.以共词分析和聚类分析的方式分析出生物医学相关本体的7个研究热点,包括基因表达的信号传导、蛋白质相关研究、本体相关的系统和软件的开发、基因及染色体的相关研究、与本体相关的词表研究、计算生物学和基因组学的方法学研究,基因表达研究.     

卫生政策科研本体构建研究

在对现有科研本体和本体构建方法进行分析的基础上,利用Protege工具进行开发,选择0WL作为卫生政策科研本体描述语言,阐述了构建过程,初步设计了卫生政策科研本体模型,最后提出了问题和展望。     

中医药文献语义标注系统研究与开发

目的研究和开发支持中医和现代生物医学本体和术语集的语义标注系统。方法以MedPortal本体库和中医临床术语集等为术语资源库,设计语义标注系统工作流程和功能框架,并开发Web应用系统。结果构建了一个基于Web的中医药文献语义标注系统,支持语料库管理与维护、术语词典管理、语义标注和语义检索等功能,既可以为基于机器学习的信息抽取算法研究提供训练集,又能实现语义层面的多来源数据集成与知识融合。结论该中医药文献语义标注系统设计方案已经过实际项目验证,可为其他同类系统研发提供参考。     

《墨经》的本体诠释哲学

《墨经》的本体诠释哲学 ,以物、知、言、行等范畴为中心。其对物、实、同、异、动、化、久、宇、故、法等范畴的规定 ,诠释了世界本体的同一、多样、运动、时空、因果与规律等一般性质。其对知、言等范畴的规定 ,诠释了知识与语言的派生性、多样性、超越性和历史性及其本体论根源。其对行、为等范畴的规定 ,诠释了自觉实践对世界本体的认识和改造作用。对世界本体的认识与改造相结合 ,理论与实践相结合 ,是《墨经》本体诠释哲学的特色与魅力所在。     

多维度临床知识组织方法及其知识库构建与平台开发

以语义技术中的本体分子理论为基础,研究如何利用本体分子对不同维度下语义内容产生变化的临床知识进行描述和组织,完成临床数据源的知识抽取、临床本体分子库构建及半自动建库工具开发,建立临床本体分子库综合应用平台,提出多维度临床知识组织与应用方法体系,设计并实现临床病程动态可视化系统、临床决策支持系统。     

生物医学领域本体网络整合工具研究进展

介绍3类国内外生物医学领域本体网络整合工具的研究成果,包括生物医学本体网络整合平台、疾病-药物本体知识发现工具、基因-蛋白质本体集成分析工具,分析其特点及不足,总结本体整合工具开发过程中应该注意的问题,希望能为相关研究者提供借鉴。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.