建立基于公开软件的校园生物信息学平台

目的:探讨建立适合我国国情的校园生物信息学平台的策略和方法.方法:以 Emboss分子序列分析组件、R数理统计分析组件、Bioconductor基因芯片分析组件、 Phylip分子进化研究工具、PostgreSQL关系数据库管理系统和Bioperl脚本语言为基本组件,在Linux操作系统上,将其编译、连接成为一个有机的校园生物信息学平台.结果:初步建成的校园生物信息学平台,可作为基于校园网的完整的核酸及蛋白质序列分析工具、基因芯片数据分析工具、对基因组数据进行多角度挖掘的工具、提供良好的新算法、新模型开发环境.开放的框架使平台具有良好的可扩展性及向后的兼容性.新开发的生物信息学工具可迅速整合进该平台.结论:用公开软件建立的校园生物信息学平台具有成本低和性能完善、优异的特点,对后基因组研究将起重要的支撑作用.     

基于“12345”模式的创新型生物信息学专业人才培养体系探索

介绍生物信息学专业教育发展现状,分析海南自由贸易港建设对生物信息学专业人才的需求,详细阐述基于“12345”模式的创新型生物信息学专业人才培养体系构建方法,包括面向地方发展需求、加强产学研合作和双师型教师梯队建设等。     

生物信息学在人类基因组研究中的应用

人类基因组计划 (HumanGenomeProject,HGP)是把目光投向整个基因组的所有基因 ,从整体水平去考虑基因的存在 ;基因结构与功能 ;基因之间的相互关系等问题。所有通过分子生物学手段所获取的碱基序列信息必须由生物信息学所提供的分析思想、方法和手段给予整理归纳得到有意义的结论。目前已建立了多种行之有效的分析模型和分析思路 ,并构建了庞大的基因和蛋白数据库。在生物信息学的辅助和推动下 ,人类基因组研究将大有作为     

高校图书馆阅读推广平台的功能设计与实现

分析了阅读推广相关案例,总结了阅读推广活动的要素,结合阅读推广评价机制分析、设计阅读推广平台的功能,利用ASP.NET、html5、SQL Server等技术构建该平台,并根据读者测试与意见反馈,完善平台功能。通过构建高校图书馆阅读推广平台,记录活动过程中的活动数据和读者数据,积累活动经验,为活动评价和读者的持续激励提供数据依据。     

生物信息学知识网络的构建

采用信息技术与计量学方法构建了生物信息学知识网络.生物信息学知识网络由知识分类模块、知识检索模块和知识报道模块3大结构组成.它强化了生物信息学的知识挖掘功能,主要表现在引文、相关文献和相关知识元的链接3个方面.     

大数据背景下医学生《生物信息学》课程教学的思考

生物信息学是生物学和计算机科学相结合的一门交叉学科。随着计算机互联网信息技术的不断突破和“精准医疗”的火热开展,生物医学领域迎来了大数据时代。医学生对生物信息学知识的需求从单基因层面转向对海量医学数据的分析处理上。本文分析了大数据时代的特征,对大数据背景下医学生《生物信息学》课程教学所面临的教学理念,课程覆盖面及教学平台无法适应新时代要求等问题进行了剖析,并据此提出通过优化课程设置,转变教学理念,引入新型教学方法和搭建与时俱进的教学平台等措施来强化生物信息学教学的改革以应对大数据时代的挑战。     

基于基因组学的日本血吸虫序列分析平台的构建及应用

[目的]构建基于基因组学的日本血吸虫序列分析平台。[方法]基于工作站和Linux操作系统,利用公开的日本血吸虫或相关资源,收集有关生物信息学序列分析工具,并自行编写相关软件实现多种资源的有机整合。[结果]构建了本地化的日本血吸虫序列分析平台,在此基础上,自主设计了日本血吸虫EST序列的电子延伸系统、基于日本血吸虫EST数据库的同源全长cDNA序列检索系统和序列自动注释系统等。[结论]所构建的序列分析平台不仅可以完成常规的序列分析工作,还可成功地完成EST序列的电子延伸,同源全长cDNA序列的检索以及序列的自动注释,它可对大规模日本血吸虫序列进行快速、方便、高效的分析,为充分利用血吸虫基因组开展疫苗研究和新药开发提供了有效的技术手段。     

基于基因组学的日本血吸虫序列分析平台的构建及应用

 [目的]构建基于基因组学的日本血吸虫序列分析平台。[方法]基于工作站和Linux操作系统,利用公开的日本血吸虫或相关资源,收集有关生物信息学序列分析工具,并自行编写相关软件实现多种资源的有机整合。[结果]构建了本地化的日本血吸虫序列分析平台,在此基础上,自主设计了日本血吸虫EST序列的电子延伸系统、基于日本血吸虫EST数据库的同源全长cDNA序列检索系统和序列自动注释系统等。[结论]所构建的序列分析平台不仅可以完成常规的序列分析工作,还可成功地完成EST序列的电子延伸,同源全长cDNA序列的检索以及序列的自动注释,它可对大规模日本血吸虫序列进行快速、方便、高效的分析,为充分利用血吸虫基因组开展疫苗研究和新药开发提供了有效的技术手段。     

医学院校实验动物培训平台的设计与构建

利用在线学习管理平台技术构建实验人员培训考核平台,加强实验人员管理,提高实验人员的专业技术和操作能力。分析行业培训考核需求,选用Moodle开源技术定制构建实验动物从业人员培训考核平台。构建了集培训、交流研讨、考核等功能于一体的在线实验动物从业人员培训考核平台。Moodle技术平台定制开发方案能有效缩短开发周期、降低开发成本,构建平台能有效提升医学院校实验动物中心服务实验教学和科学研究的能力。     

艰难梭菌毒素A羧基端基因原核表达载体的构建及生物信息学分析

目的构建表达艰难梭菌毒素A羧基末端受体结合区功能基因的原核表达载体。方法PCR扩增艰难梭菌毒素A羧基末端受体结合区功能基因（CDTAR），并将其克隆到表达载体pET-22b（＋），重组质粒转化到大肠杆菌BL21（DE3），重组载体经EcoRⅠ，XhoⅠ双酶切鉴定及测序进行分析，并以生物信息学软件分析其生物活性。结果构建了含CDTAR的重组质粒pET—CDTAR，生物信息学分析示该序列具有良好的抗原性及疏水性。结论艰难梭菌毒素A羧基末端受体结合区功能基因原核表达载体的构建为艰难梭菌疫苗的研究奠定了基础。     

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.     

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.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care（~＇4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.