Proteomic analysis of the serum in patients with idiopathic pulmonary arterial hypertension

Idiopathic pulmonary arterial hypertension(IPAH) is a rare disease of unknown etiology.The exact pathogenesis of pulmonary arterial hypertension is still not well known.In the past decades,many protein molecules have been found to be in-volved in the development of IPAH.With proteomic techniques,profiling of human plasma proteome becomes more feasible in searching for disease-related markers.In present study,we showed the protein expression profiles of the serum of IPAH and healthy controls after depleting a few high-abundant proteins in serum.Thirteen spots had changed significantly in IPAH com-pared with healthy controls and were identified by LC-MS/MS.Alpha-1-antitrypsin and vitronectin were down-regulated in IPAH and may be valuable candidates for further explorations of their roles in the development of IPAH.     

MgO(H_2O)上乙烷氧化脱氢初探

本文采用TPD、IR技术,结合乙烷在水解MgO(H_2O)催化剂上氧化脱氢的结果,对MgO(H_2O)进行了研究,结果表明:催化氧化脱氢与催化剂表面酸、碱中心协同作用有关;温度、原料配比、反应时间等对协同作用存在较大影响,进而影响反应。     

野生食用蔬菜——臭菜风味成分分析

采用水蒸气蒸馏的方法对云南特色野生食用木本蔬菜资源——臭菜（Acacia pennata）的香味成分进行了提取，并运用GC／MS技术对臭菜挥发油成分和组成进行了分析鉴定，从臭菜挥发油中分离鉴定33个化合物．臭菜挥发油含有大量的含硫化物，含量占挥发油总量的96．80％，主要成分噻啶thialdine含量高达79．51％，是臭菜的特征风味成分，与一般的野生蔬菜香味成分明显不同．     

气相色谱-质谱联用法分析奶及乳制品中的脂肪酸

对奶及乳制品中脂肪酸的组成和含量进行测定.采用哥特里-罗兹法提取奶及乳制品中的脂肪油,氢氧化钾-甲醇溶液法甲酯化,以气相色谱-质谱联用仪进行了分析,结果表明奶及乳制品中的脂肪酸主要以碳8到碳24的脂肪酸为主,各脂肪酸在不同类型的奶及乳制品中含量也不相同.     

国有企业改革与法人治理结构建设

本文首先就完善法人治理结构是我国国有企业建立现代企业制度的核心环节进行了分析，然后对法人治理结构的内涵进行了详细的阐述，对国有企业改制、建立法人治理结构的过程中出现的问题进行了深层次探讨，对目前国际上普遍认同的、并值得我国企业借鉴的“OECD《公司治理结构原则》”作了介绍，对国有企业改制过程中如何完善法人治理结构提出了若干对策建议。     

磁刺激促进骨折愈合及对血液生化参数的影响(英文)

对１２０例新鲜骨折患者进行了磁刺激对骨折愈合和多种血液生化参数影响的试验研究,分析了磁刺激促进骨折愈合的作用机理．对比试验结果表明：磁刺激可促进钙盐沉着,加强人体的钙磷代谢,从而加速骨折的愈合过程．     

一种进口胶粘剂溶剂的剖析

采用化学法和FT IR、GC/MS等现代测试技术 ,分析、测定了透明型光学用胶粘剂 (简称光学胶 )溶剂的化学结构为苯乙烯 (C6 H6 CHCH2 ) .     

Influence of vitamin D mushroom powder supplementation on exercise-induced muscle damage in vitamin D insufficient high school athletes

Abstract

Incidence of vitamin D deficiency is increasing worldwide. The purpose of this study was to determine if supplementation with vitamin D₂ from Portobello mushroom powder would enhance skeletal muscle function and attenuate exercise-induced muscle damage in low vitamin D status high school athletes. Participants were randomised to Portobello mushroom powder (600 IU/d vitamin D₂) or placebo for 6 weeks. Participants then completed a 1.5-h exercise session designed to induce skeletal muscle damage. Blood samples and measures of skeletal muscle function were taken pre-supplementation, post-supplementation/pre-exercise and post-exercise. Six weeks supplementation with vitamin D₂ increased serum 25(OH)D₂ by 9.9-fold and decreased serum 25(OH)D₃ by 28%. Changes in skeletal muscle function and circulating markers of skeletal muscle damage did not differ between groups. In conclusion, 600 IU/d vitamin D₂ increased 25(OH)D₂ with a concomitant decrease in 25(OD)D₃, with no effect on muscular function or exercise-induced muscle damage in high school athletes.     

一起海洛因毒品的GC/MS检验

利用GC/MS技术对一起海洛因贩运案例,进行定性、定量检测,线性方程为C.(μg/mL)= 1.3754E-005×A+0.03742,相关系数r=0.9981;平均回收率88.2％,标准偏差0.35,变异系数0.7％(n= 5),样品含量为11.23％。建立了一个海洛因类毒品的快速检验方法。     

Science Letters:Volatile constituents in the flowers of Elsholtzia argyi and their varia-tion:a possible utilization of plant resources after phytoremediation

Phytoremediation effectiveness and remediation costs are driving factors of this project. Full utilization of plant resources after their being used for phytoremediation is an unsolved problem. GC/MS technique was used to investigate the volatiles of the flowers from Elsholtzia argyi (PFE1: Purple Flower Elsholtzia) and their variation