新生鼠缺氧缺血性脑病脑组织中微量元素的变化

为探讨新生鼠缺氧缺血性脑病脑组织中 5种元素 (Fe2 + 、Ca2 + 、Zn2 + 、Cu2 + 、Mg2 + )的变化及意义 ,将新生Wistar鼠 2 4只随机分为正常对照组和缺氧缺血性脑病组 ,乙醚吸入麻醉后用1 0双线结扎右侧颈总动脉 ,术后恢复 4h ,吸入含 8%O2 和 92 %N2 混合气体 2h后将 2组大鼠处死 ,取脑组织 ,用原子吸收分光光度仪测定其微量元素的变化。结果表明 ,与正常对照组相比较 ,缺氧缺血性脑病脑组织中Zn2 + 、Mn2 + 、Cu2 + 含量明显减少 (P <0 0 1 ) ;Ca2 + 增加 (P <0 0 1 )。提示缺氧缺血性脑病能引起大鼠脑组织微量元素的改变     

Time dependence of distribution of radioactive trace elements in Se-deficient rats: Application of the multitracer technique

The uptake and the distribution of radioactive trace elements in Se-deficient rats were examined by the multitracer technique, which can be used to evaluate the behavior of many elements under the same experimental conditions. The uptake of Se was larger in the brain, spleen, and testicles of the Se-deficient rats than in those of the normal ones. The uptake of As, Fe, and Sc was larger in the liver of Se-deficient rats than in that of normal ones. In the bone, the uptake of Zr of Se-deficient rats was larger than that of normal ones. Selenium is known to be in a competitive or synergetic relationship with several metals. From the present results on Sc and Zr, it was newly cleared up that there is also some interaction between those elements and Se.     

Determination of trace elements in various organs of rats by thermal neutron activation analysis

The trace element levels in various organs of normal rats have been determined by means of thermal neutron activation followed by high-resolution gamma-spectroscopy. Abundances for 11 elements (Cu, Mn, Fe, Zn, Rb, Sb, Se, Cr, Co, Cs and Sc) were evaluated in the individual subjects. The present results were generally found within the ranges of the literature values, except for ultra-trace elements. Reliability of the method was assessed by analyzing NBS standard reference materials, Orchard Leaves and Bovine Liver. The trace element contents of the rat diet have also been measured, and comparison of them with those of the rat organs was given.     

Application of neutron activation analysis to the study of the variations of the concentration of trace elements in various organs of rat as a function of age

In order to know the normal distribution of trace elements is rats, in terms of age, we have determined the elemental composition of different organs and body tissues by neutron activation analysis following an animal experiment during which the rats raised outside of any kind of pollution, were fed with a defined diet. The values observed for Co, Zn, Mn, Se, Fe, Cs, Rb, Hg, Cd in heart, body muscles, liver, kidney and testis are represented in table and figures. Except for renal accumulation of Hg and Cd, the more interesting fact revealed in this work, in the accumulation of Fe in body muscles and testis.     

微量元素医学精要Ⅱ.疾病的诊断和治疗

本文根据微量元素医学的基本理论和方法对疾病进行诊治的进展作了综述。包括以下内容；人体疾病与微量元素。微量元素日供给量，治疗量及食物来源。微量元素分析测试方法简介和人体微量元素参考值。     

Trace-element levels in tissues of rats and dogs treated with cis-diammine/1,1-cyclobutanedicarboxylato/platinum/II/ /Carboplatin/

Platinum and eleven other trace elements were determined by radiochemical neutron activation analysis in tissues of healthy rats and dogs treated with the anti-cancer drug carboplatin. In rats the levels of the trace elements were not much influenced; in the kidney only the Co and the Sb levels were decreased and in the liver only the Mo level was increased. A parallel tendency in the Co and Mo metabolism was seen in dogs. Carboplatin treatment tends to reduce the Cd, Co and Fe levels in metabolic active organs, kidney, liver, spleen and/or pancreas of the dog.     

中心性浆液性脉络膜视网膜病变者全血14种微量元素含量测定

用ＩＣＰ－ＡＥＳ法对中心性浆液性脉络膜机网膜病变１２例，对照健康人组１３例全血微量元素测定，发现有一些微量元素明显升高或降低，其中铬（Ｃｒ）较健康人组升高（Ｐ＜０．０５），锰（Ｍｎ）较健康人组高（Ｐ＜０．０５），均有显著性差异；钛（Ｔｉ）较健康人组降低（Ｐ＜０．００２５）．进一步研究可能对中心性浆液性脉络膜视网膜病变的发病原因、治疗等提供新的见解和有用的治疗方法．     

头发中微量元素含量与乙型肝炎关系的研究

通过检测60名乙型肝炎患者与55名正常对照组头发中的Zn、Mn、Cr、Fe、Cu、Se 6种微量元素的含量,观察了头发微量元素的变化情况与乙型肝炎的关系。结果表明,Zn、Mn、Se含量显著低于正常对照组,有显著或极显著性差异(P<0.05或P<0.01);Fe与正常对照组比较显著升高,有极显著性差异(P<0.01);Cr、Cu与正常对照组比较,无明显差异(P<0.05)。故微量元素与乙型肝炎存在着密切的联系,对乙肝患者须关注其微量元素含量的变化。     

微量元素与小儿支气管肺炎关系的探讨

为研究微量元素与小儿支气管肺炎的关系,对32例支气管肺炎患儿及20例健康儿童进行了全血微量元素检测分析.结果表明,支气管肺炎患儿的全血锌、铁含量明显低于健康儿童（P＜0.01）.提示支气管肺炎患儿部分微量元素含量存在异常,建议支气管肺炎患儿常规检查微量元素.     

大肠癌与微量元素研究

对48例大肠癌患者手术前后血清和正常大肠组织与癌组织中微量元素测定、比较，发现大脑癌患者手术前后血清微量元素变化，除Cr、Mn有显著差异外均无显著差异，而癌瘤组织与正常大脑组织中Ca、Cd、Mn、Zn、Cu/Zn有明显差异，探讨了大肠癌发生的机理。大肠癌病因是复杂的，但与微量元素改变有一定关系，并指出，组织测定观察微量元素变化比血清测定观察更敏感。     

青海三角城牧场牧草微量元素含量研究

测定了青海三角城牧场牛羊主要采食的18种牧草中与动物健康密切相关的14种微量元素含量,并对牧草质量进行了评价。结果表明,Zn、Mg、Se、Mn等微量元素含量较低,当地羊群地方病与此有关;其它营养元素含量相对正常;有害元素Pb、Cd、As、Hg含量较低。比较去离子水洗涤和非洗涤的牧草,两者微量元素含量无明显差异,说明在青藏高原洁净的自然环境下,牧草所粘附泥土及其它杂质很少。     

维生素D缺乏诱导小儿呆小病与血液微量元素的关系研究

目的探讨维生素D缺乏诱导呆小病新生儿血液中微量元素含量的变化。方法采用微分电位溶出法测定维生素D缺乏诱导呆小病的新生儿与健康新生儿血液中微量元素的含量。结果呆小病组血清锌、镁、铁、钙均低于正常,全血铅、血清铜均高于正常。结论小儿维生素D缺乏诱导呆小病新生儿血液微量元素存在一定的失衡,与感染所造成的机体伤害有一定的关系,因此需要及时补充和调理微量元素,对疾病的治疗和恢复有重要意义。     

微量元素锌、血清胱抑素 C在糖尿病肾病早期诊断的意义

目的：探讨早期糖尿病肾病患者（ DN）的微量元素锌、血清胱抑素C（ CysC）、血清肌酐（ SCr）和血清尿素（ BUN）水平的变化程度及意义。方法将糖尿病肾病患者分为3组：正常蛋白尿组,微量蛋白尿组,临床蛋白尿组。所有患者和对照组均空腹抽取静脉血检测微量元素锌、血清胱抑素C、血清尿素、血清肌酐。结果正常蛋白尿组、微量蛋白尿组、临床蛋白尿组微量元素锌均明显低于正常对照组,差异有统计学意义（ P＜0.05）。正常蛋白尿组、微量蛋白尿组、临床蛋白尿组血清胱抑素C水平均明显高于正常对照组,差异有统计学意义（ P＜0.05）。微量蛋白尿组、临床蛋白尿组血清肌酐检测值和正常对照组有明显差异,差异有统计学意义（ P＜0.05）。结论检测微量元素锌、血清胱抑素C对糖尿病肾病的早期肾损害有较高的临床价值,可作为早期糖尿病肾病诊断的参考指标。     

Instrumental neutron activation analysis in study of the toxicity of trialkyltin-methacrylic copolymer as an antifouling agent

The analysis of tin in biological materials is rarely reported. In this study, instrumental neutron activation analysis was used to determine the tin together with some other trace elements in various organs of rats treated with trialkyltin-methacrylic copolymer. No appreciable accumulation of tin and variation of distribution of trace elements (Cr, Fe, Zn and Co) in various organs are found. The pathological changes in the liver sections cannot be observed either. This therefore indicates that the toxicity of trialkyltin-methacrylic copolymer is low, if any.     

自然流产孕妇体内微量元素含量的变化

为了解自然流产孕妇体内微量元素的变化,检测了50例正常妊娠妇女和50例自然流产妇女（其中忆查明流产原因的33例,不明原因流产17例）头发中微量元素。结果显示,查明原因流产组发锌、铜、铁、钙和不明原因流产组发锌、铜、铁含量均明显低于正常妊娠组;而发铅含量则明显高于正常妊娠组,经统计学处理分析,差别有显著性。提示妊娠期微量元素平衡与否,对宫内胎儿的发育乃至安危均有一定的影响。     

Discriminant analysis of trace elements in normal,benign and malignant breast tissues measured by total reflection X-ray fluorescence

In this work total reflection X-ray fluorescence spectrometry has been employed to determine trace element concentrations in different human breast tissues (normal, normal adjacent, benign and malignant). A multivariate discriminant analysis of observed levels was performed in order to build a predictive model and perform tissue-type classifications. A total of 83 breast tissue samples were studied. Results showed the presence of Ca, Ti, Fe, Cu and Zn in all analyzed samples. All trace elements, except Ti, were found in higher concentrations in both malignant and benign tissues, when compared to normal tissues and normal adjacent tissues. In addition, the concentration of Fe was higher in malignant tissues than in benign neoplastic tissues. An opposite behavior was observed for Ca, Cu and Zn. Results have shown that discriminant analysis was able to successfully identify differences between trace element distributions from normal and malignant tissues with an overall accuracy of 80% and 65% for independent and paired breast samples respectively, and of 87% for benign and malignant tissues.     

帕金森氏病与头发中微量元素关系的研究

以人发为材料，探讨了帕金森氏病与微量元素的关系。采集了６０例患者头发和５０例健康人头发，用电感耦合高频等离子体发射光谱仪进行测定，结果发现，患者组头发铜、锌、铁、锰明显低于对照组，患者组轻、中、重分型病人的头发微量元素变化有一定的规律，上述结果提示微量元素与帕金森氏病有重要关系。     

微量元素与妊娠并发症的关系

为探讨孕妇体内微量元素与妊娠并发症的关系,采用回顾性分析的方法,分析了住院分娩有妊娠并发症的孕妇体内微量元素的变化,其中妊高征、胎膜早破、胎儿宫内窘迫、FGR各5 0例,并随机选取同期住院分娩无任何合并症和并发症的孕妇5 0例作为对照组,测定其体内微量元素Zn、Fe、Cu的代谢情况,并探讨其相关性。结果表明,妊高征、胎膜早破、FGR、胎儿宫内窘迫孕妇的静脉血中Zn含量明显低于正常孕妇组,胎膜早破的孕妇血中Cu含量明显低于正常孕妇组(P <0 0 1 ) ,FGR、胎儿宫内窘迫的孕妇血中含Fe量也明显偏低,与正常孕妇组比较,差异有显著性意义。结论是妊娠并发症的出现与孕妇血中的微量元素代谢异常可能有一定的关系     

补血中药对贫血大鼠体内微量元素分布的影响

补血中药可以明显地改善慢性失血性贫血大鼠的缺铁贫血状态。用ＩＣＰ－ＡＥＳ法测定了饱料、中药及大鼠体内微量元素含量,结果显示,补血中药含铁量比饲料中的铁含量还略低,服药贫血大鼠体内脾、肝等贮铁库中的铁含量显著降低。提示补血中药对贫血的治疗作用。主要是通过积极调动、利用体内铁库的贮量和直接对造血干细胞的造血刺激作用的实现的。由于贫血大体内铁库贮量已近耗竭,所以积极而适当地补充铁剂及锰、镍、钒等元素也是     

糖尿病母亲及其新生儿全血14种微量元素的研究

为了解糖尿病母亲及其新生儿全血微量元素的分布情况，采用日本岛津ICPQ－1012型高频等离子体发射光谱仪检测了糖尿病母亲及其新生儿的全血14种微量元素。以正常产妇及足月新生儿病例为对照组，观察糖尿病母亲及其新生儿的全血14种微量元素的改变。结果糖尿病母亲铜元素高于正常产妇，铬、锰、锌元素低于正常产妇，糖尿病母亲新生儿铜元素高于正常新生儿，锌、锰、镁、铬元素低于正常新生儿。糖尿病母亲新生儿镁、镍、铜、锌、钙、钼、锶、铁低于糖尿病母亲。结论：糖尿病母亲血铬、锌、锰元素低于正常，铜元素增高是由于糖尿病疾病所引起，糖尿病母亲新生儿铜元素增高，血镁、钙、锰、锌等低于正常，与糖尿病母亲本身微量元素特点有关。糖尿病母亲新生儿血镁、镍、铜、锌、钙、钼、锶、铁元素低于糖尿病母亲与先天发育不足有关。