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1.
儿童多动症与微量元素关系的探讨 总被引:8,自引:1,他引:8
钱三三 《广东微量元素科学》1998,5(4):71-73
为了探讨儿童多动症与微量元素的关系,测定了72例多动症患儿头发中的六种元素Zn、Cu、Pb、Cr、Fe、Ca含量,并将其与正常儿童进行比较,结果表明:多动症组Cu显著低于正常组,P〈0.01,多动症组Zn显著低于正常组,P〈0.05,多动症组Pb显著高于正常组,P〈0.05。提示调整患儿体内微量元素平衡可作为治疗儿童多动症的辅助方法。 相似文献
2.
测定了百草元营养包中含有人体所必需的十四种微量元素和几种宏量元素,从微量元素与保健的角度,观察了百草元营养包补充人体常见缺乏的微量元素和治疗多种常见慢性病的效果,总有效率达89%。 相似文献
3.
抗高血压中药与微量元素初探 总被引:4,自引:4,他引:4
高聿田 《广东微量元素科学》1998,5(1):60-62
高血压的发病与体内微量元素的改变,如有害元素铅,镉在体内的蓄积及必需元素锌、铜、锗代谢的紊乱密切相关,本文介绍了用中药治疗原发性高血压收到满意疗效,重点探讨了中药中所含微量元素治疗高血压的作用机理。 相似文献
4.
对115例小儿营养不良患者.经测试头发微量元素含量的变化,发现中医不同的辩证分型中,徽量元素的缺乏或偏高各有不同的变化,提示在治疗上,除辩证外,可选择应用某微量元素含量高的同类中药进行治疗,能提高临床疗效. 相似文献
5.
罗峰 《广东微量元素科学》2007,14(5):48-48
元素医学是继古代医学、现代医学之后的第三代医学,它是以元素平衡为核心,从原子、分子、生物学水平研究人体健康,防治疾病的医学。它利用检测人体微量元素,有目的地通过日常饮食来调整体内元素使之平衡,从而将疾病消灭在萌芽之中。这是一门新的科学,也是21世纪最前沿的科学。目前,使用元素医学不但能防治传统的疾病, 相似文献
6.
吕明松 《广东微量元素科学》1997,4(7):52-54
以临床典型病案为例,探讨了中医中药传统理论和现代微量元素研究的关系,重点讨论了向量元素锌、宏量元素钙与高血压、风湿症的病因病机和治疗关系。 相似文献
7.
微量元素在生命体中的最适浓度 总被引:3,自引:4,他引:3
简要介绍了人体中的生命元素、微量元素和必需微量元素以及微量元素在人体中的生理功能和特征,指出微量元素摄入过量和不足所引起的不良后果。阐述了生命体中元素的最适浓度定律。 相似文献
8.
肾痹方治疗强直性脊柱炎及其对血清微量元素的影响 总被引:1,自引:0,他引:1
以消炎痛为对照,观察肾痹方治疗活动期强直性脊柱炎(AS)的临床疗效及用药前后患者血清微量元素锌,铜,铁,硒的变化。结果表明,肾痹方总显效率优于消炎痛,用药前患者血清锌,铁,硒降低,铜同,治疗后有显著改善,说明微量元素参与了AS的发病,治疗时要注意调整患者血清微量元素水平,这也是肾痹方的作用机理之一。 相似文献
9.
微量元素与病毒性肝炎 总被引:5,自引:2,他引:5
微量元素参与机体各种酶及活性物质的代谢,从多方面影响着人的生命过程。肝脏是人体的重要代谢脏器,对微量元素的代谢关系更为密切。病毒性肝炎患者血清硒,锌均明显降低,铜元素高于正常。因此测定患者机体内的微量元素含量,为诊断及治疗提供新的途径和措施,可及时纠正患者体内微量元素的盈缺,有助于改善肝细胞功能及增强机体免疫力。 相似文献
10.
综述了我国地方病元素病因学及临床疾病元素病因学研究取得的成果,包括:我国地方病元素病因和临床疾病元素病因研究,艾滋病防治的研究,并展望了中药微量元素研究的未来,元素平衡食疗治疗艾滋病的研究,中药元素成分和方剂微量元素成分的研究,有望取得更大的突破性进展. 相似文献
11.
Recent developments in CE and CEC of peptides 总被引:1,自引:0,他引:1
Kasicka V 《Electrophoresis》2008,29(1):179-206
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随着环境污染、资源枯竭和医疗健康等问题的加剧,研发同时满足特定使用性能、安全性及可再生性的新型材料成为当前的发展趋势.而丝素蛋白材料正是以天然蚕丝为基本原材料,经一定的加工和功能化而形成的具有特殊结构、独特性能和广泛应用的生物质材料,近年来在生物医药、生物电子、智能传感等领域展现出巨大的应用潜力.本专论总结了丝素蛋白纤维及功能化材料的最新成果,结合本课题组相关工作,重点阐述了再生丝素蛋白纤维的仿生制备、生物医用支架的构筑与功能化、智能电子材料的设计以及天然多功能蚕丝及其构筑基元制备的研究进展,以期为高性能丝素蛋白材料的设计与构筑提供指导和借鉴. 相似文献
14.
The effects of alpha-, beta-, gamma- and dimethyl-beta-cyclodextrins (alpha-, beta-, gamma- and DM-beta-CyDs) and liposomes on epimerization or racemization of etoposide, ethiazide and carbenicillin were examined kinetically. alpha- and beta-CyDs accelerated both epimerization and hydrolysis of carbenicillin. They had no effect on epimerization of etoposide, and did not affect racemization and hydrolysis of ethiazide. DM-beta-CyD retarded epimerization of etoposide, hydrolysis of picroetoposide (which is an epimer of etoposide), and racemization and hydrolysis of ethiazide, but had no effect on epimerization and hydrolysis of carbenicillin. gamma-CyD retarded epimerization of etoposide and hydrolysis of picroetoposide. On the other hand, gamma-CyD accelerated epimerization of carbenicillin. It is suggested that the formation of inclusion complexes between CyDs and etoposide, picroetoposide and ethiazide inhibited the attack of bases such as OH- and buffer components, thereby retarding epimerization, racemization and hydrolysis. On the other hand, alpha-, beta- and gamma-CyDs increased the reactivity of carbenicillin through the OH group, accelerating its epimerization and hydrolysis. Liposomes retarded epimerization of etoposide, hydrolysis of picroetoposide and racemization of ethiazide. Liposomes did not affect epimerization and hydrolysis of carbenicillin. These differences in the effect of liposomes on reactivity may be interpreted in terms of the solubility of the drugs. 相似文献
15.
Kašička V 《Electrophoresis》2012,33(1):48-73
The review brings a comprehensive survey of the recent developments of high-performance electroseparation methods in capillary and microchip formats: zone electrophoresis, isotachophoresis, isoelectric focusing, affinity electrophoresis, electrokinetic chromatography and electrochromatography. Applications of these techniques to analysis, isolation, purification and physicochemical and biochemical characterization of peptides are described. Advances in the investigation of electromigration properties of peptides, and in the methodology of their analysis, such as sample preparation, adsorption suppression, EOF control and detection, are presented. New developments, in particular, CE and CEC modes are reported and several types of their applications to peptide analysis are described: conventional qualitative and quantitative analysis, determination in complex (bio)matrices, monitoring of chemical and enzymatical reactions and physical changes, amino acid, sequence and chiral analysis, and peptide mapping of proteins. Some micropreparative peptide separations are shown and capabilities of CE and CEC techniques to provide relevant physicochemical characteristics of peptides are demonstrated. 相似文献
16.
La Mesa C 《Journal of colloid and interface science》2005,286(1):148-157
The phase behavior and some physicochemical properties of homopolymers (HP) and hydrophobically modified (HMP) polymers, as well as of polyelectrolytes (PE) and proteins (PR), in the presence of aqueous surfactants, or their mixtures, are discussed. Mixing the above components gives rise to the formation of organized phases, whose properties are controlled by polymer and/or surfactant content, temperature, pH, and ionic strength. Depending on the nature, concentration, and net charge of both solutes, molecular solutions, polymer-surfactant complexes, adsorption onto micelles and vesicles, gels, liquid crystalline phases, and precipitates are observed. Such rich polymorphic behavior is the result of a complex balance between electrostatic, excluded volume, van der Waals, and other contributions to overall system stability. It is also modulated by the molecular details and architecture of both the polymer and the surfactant. Different experimental methods allow investigation of the above systems and getting information on the nature of polymer-surfactant interactions (PSI). Surface adsorption and thermodynamic methods, together with investigation of the phase diagrams, give information on the forces controlling PSI and on the existence of different phases. Conductivity, QELS and viscosity allow estimating the size and shape of polymer-surfactant (protein-surfactant) complexes. Optical microscopy, cryo-TEM, AFM, NMR, fluorescence, and relaxation methods give more information on the above systems. Use of the above mixtures in controlling gelation, surface covering, preparing dielectric layers, and drug release is suggested. 相似文献
17.
Václav Kašička 《Electrophoresis》2020,41(1-2):10-35
The review presents a comprehensive survey of recent developments and applications of high performance capillary and microchip electroseparation methods (zone electrophoresis, isotachophoresis, isoelectric focusing, affinity electrophoresis, electrokinetic chromatography, and electrochromatography) for analysis, micropreparation, and physicochemical and biochemical characterization of peptides since 2017 up to about the middle of 2019. Progress in the study of electromigration properties of peptides and in the methodology of their analysis (sample preseparation, preconcentration and derivatization, adsorption suppression, EOF control, and detection) are described. Advances in CE and CEC methods are demonstrated and their applications in the following areas are presented: qualitative and quantitative analysis, determination in complex (bio)matrices, monitoring of chemical and enzymatical reactions and physical changes, amino acid, sequence and chiral analysis, and peptide mapping of proteins. In addition, micropreparative separations and determinations of important physicochemical characteristics of peptides by CE and CEC methods are reported. 相似文献
18.
Recent advances in thin-layer chromatography of pesticides 总被引:2,自引:0,他引:2
Sherma J 《Journal of AOAC International》2001,84(4):993-999
Advances in the applications of thin-layer chromatography (TLC) and high-performance thin-layer chromatography (HPTLC) for the separation, detection, and qualitative and quantitative determination of pesticides, other agrochemicals, and related compounds are reviewed for the period 1998-2000. Analyses are covered for a variety of samples, such as food, biological, and environmental, and for residues of pesticides of various types, including insecticides, herbicides, and fungicides, belonging to different chemical classes. References on formulation analysis, hydrophobicity studies, and the use of TLC and thin-layer radiochromatography (TLRC) for studies of pesticide metabolism, degradation, uptake, and related studies are also included. 相似文献
19.
基于科学技术的发展、时代的要求,教育改革势在必行,科教融合是发展的新趋势.《高分子材料综合实验》是高分子材料与工程专业的一门必修课,在学生从学校到工作岗位顺利过渡中起着重要的桥梁作用.科教融合在该门课的教学中显得尤为重要,能使学生综合能力、科学素养得到有效提升.以花生壳吸附剂的制备及其应用为例,介绍了科教融合的教学方法... 相似文献
20.
I. A. Dement’ev A. O. Kozin Yu. V. Kondrat’ev D. V. Korol’kov A. A. Proyavkin 《Russian Journal of General Chemistry》2007,77(5):822-843
Data on the composition, structure, and properties (electronic and geometric structure, optical properties, thermodynamic functions) of mononuclear, polynuclear, and cluster complexes of bi-, tri-, tetra-, penta-, and hexavalent molybdenum are summarized and correlated. The thermodynamics, kinetics, and mechanisms of the ligand exchange, protonation deprotonation, redox reactions, and formation decomposition of cluster cores of molybdenum complexes in aqueous solutions are characterized. 相似文献