血压偏高的青少年头发中五种元素的分析

本文对４０例血压偏高及４０例血压正常的青少年进行了头发微量元素的测试分析。研究结果表明，血压偏高的青少年头发中的Ｚｎ和Ｃａ明显高于正常儿童，Ｆｅ则低于血压正常的青少年。因此，适当的减少动物性食物，增加植物性食物及含Ｆｅ丰富的食物的摄入，将有益于青少年高血压的预防。     

速效牛黄丸临床应用举隅

张××,女,10岁,小学生,1987年10月5日初诊。7年前,头部出现红斑伴小丘疹,而后迅速扩展,并有渗出液,屡治罔效。现见头部皮肤肥厚,小片状红斑,色黯,两颞部脱鳞屑,枕、顶部红斑色鲜红,互相融合,境界不清,斑上见小水疱及糜烂,直径约1.5毫米,大量浆液外溢,渗出物干后之黄痂与头发粘连在一起,毛发稀疏,痒痛同现,体胖面赤便干,     

发砷和指（趾）甲砷含量的相关分析

用原子荧光分光光度法对４４名健康人的头发和指（趾）甲中砷的含量进行了测定。结只发砷与指（趾）甲砷均呈偏态分布，经对数转换成正态分布后，二者无相关关系（ｒ＝－０．１２３００．１＜Ｐ＜０．２５）。     

碳纤维电极伏安法测定发铅含量

碳纤维电极伏安法测定发铅含量邵梦欣张睿郝琳商伯东我们叙述了斜削碳纤维束汞膜复合微电极的制作方法、伏安特性及其在发铅测定中的应用。一、测定方法１．仪器：（１）ＭＣ９８－Ａ型多功能极谱仪（天津职业大学研制）；（２）斜削碳纤维束复合微电极（自制）：将直径７...     

人体液和发样中微量锌铜的双波长分光光度法同时测定

锌、铜是人体必需微量元素,人体液和组织中锌铜含量的变化与某些疾病的发生、发展关系密切。如急性白血症和各种感染急症中血清铜浓度增高,血清铜的测定可用于Wilson氏综合症的诊断;短身材和侏儒综合症与锌缺乏有关,职业性接触引起的血清锌     

667例新生儿发微量元素测定分析

<正> 自1991年11月～1992年5月,我们对在该院所出生的所有新生儿作了头发中微量元素检测,结果分析如下: 资料与方法一、对象本文检测的667例,其中男328例,女339例其新生儿体重(体重仪为无锡衡器厂ZY—10型台式小儿体重仪,最小分度50g),评分、母亲职业、文化程度、住址均来自住院病历记载。二、取样全部受检新生儿均于分娩后24小时之内取发样,部位于枕骨粗隆部2cm～3cm,距     

Identification of differentially expressed genes in anagen dermal papilla by suppression subtractive hybridization

Background We constructed a cDNA subtractive library of dermal papilla cells (DPCs) in anagen with suppression subtractive hybridization (SSH) technique and clone differentially expressed genes related to DPCs in anagen. Methods Total mRNA was isolated from DPCs of anagen and telogen follicles. Moreover, singlestrand (ss) and double-strand (ds) cDNAs were synthesized in turn using SMART PCR cDNA synthesis technology, ds cDNAs then were digested with Rsa I and divided into two groups, and ligated to the specific adaptor 1 and adaptor 2R, respectively. After cDNAs were hybridized with each other twice and underwent two rounds of nested PCR. PCR products were ligated with arms of T/A plasmid vectors to set up the subtractive library. Selected clones were demonstrated by reverse Northern blot and sequenced. The acquired sequence data were aligned against the Genbank nucleotide database. Results cDNA subtractive library of DPCs in anagen follicles was set up successfully with high subtractive efficiency, Thirty-five genes were identified in this study with 22 known functional genesand 13 unknown functional genes. Conclusions All results confirm the effectiveness and sensitivity of SSH in detecting differentially expressed genes from a small amount of clinical samples. Information about such alterations in gene expression could be useful for elucidating the genetic events in hair follicle growth regulation.