搜索结果: 1-15 共查到“医学 Cu”相关记录25条 . 查询时间(0.145 秒)
观察全脑照射后大鼠脑组织含水量、微血管损伤及海马组织中Ca、Mg、Cu、Fe、Zn含量的动态变化,探讨这些元素在放射性脑损伤(RBI)发病机制中的作用。方法 用随机数字表法将大鼠分为空白组、防护组(400 mg/kg体重腹腔注射10%MgSO4溶液+单次全脑20 Gy电子束照射)和照射组(400 mg/kg体重腹腔注射生理盐水+单次全脑20 Gy电子束照射),每组18只,每个时间点3只。用干-湿重...
东方山羊豆Cu/ZnSOD基因的克隆及表达分析
东方山羊豆 Cu/ZnSOD基因 基因克隆 实时荧光定量PCR 亚细胞定位
2013/7/26
超氧化物歧化酶是一种广泛存在于真核生物中的金属酶类, 在植物的抗逆性中起到重要的作用。文章采用RACE方法, 从东方山羊豆中克隆了Cu/ZnSOD基因, 并对其进行了初步分析。该基因cDNA序列全长935 bp, 开放阅读框600 bp, 编码199个氨基酸, 蛋白质分子量为20.35 kDa。通过实时荧光定量PCR结果分析, 该基因在东方山羊豆叶中表达量最多, 茎中次之, 根中最少。在NaCl和...
Cu(Ⅱ)配合物荧光探针用于NO检测
荧光探针 Cu(Ⅱ)配合物 N-亚硝酰化
2012/3/31
一氧化氮(NO)是体内普遍存在的信号分子，参与了众多复杂的生理过程，在神经传导、能量代谢、免疫应答、炎症反应和肿瘤的发生发展中扮演了重要角色，检测NO具有十分重要的研究意义。目前检测NO的常规技术并不能用于体内实时、直观地检测NO水平，应用受到限制。本文综述了Cu(Ⅱ)配合物类NO荧光探针的研究进展，可用于细胞和动物体内NO水平的测定。
Corrosion Properties of Ag-Au-Cu-Pd System Alloys Containing Indium
Ag-Au-Cu-Pd system alloy Corrosion resistance Tarnish
2010/12/1
In this study, the corrosion resistance of Ag-Au-Cu-Pd system alloys consisting of 5 or 10 mass% indium was evaluated. Levels of element release and tarnish were determined and electrochemical measure...
Tarnish resistance evaluation of experimental Pd-free Ag-Au-Pt-Cu dental alloys
Dental alloys Tarnish resistance Discoloration
2010/11/29
This study evaluated the tarnish resistance of eight experimental Pd-free Ag-Au-Pt-Cu dental alloys in a 0.1% Na2S aqueous solution at 37°C. Color measurements of the plate samples were made using a c...
Magnetic Shielding by Superconducting Y-Ba-Cu-O Hollow Cylinders
Magnetic Shielding Y-Ba-Cu-O Hollow Cylinders
2010/1/5
Magnetic Shielding by Superconducting Y-Ba-Cu-O Hollow Cylinders.
本文重新研究了EDTA絡合量法中用Cu-PAN系統滴定Ca++,Ba++,Mg++,Al+++,Cr+++,Zn++,Fe+++,Pb+++,Bi+++,Hg++,Cu++等的pH、溫度、指示剂用量等条件,测定准确度为1%.建立了用Cu-PAN系統滴定鉻盐及鋇盐的方法,測定終点較用鉻黑T指示剂明显.測定了Cu-PAN絡合物的組成为1:1,稳定常数为:pH2,1.4×106;pH4,1.9×106;...
This study compared the resistance to removal by traction of abraded cylindrical metal cast posts of Cu-Al (Goldent-LA). The posts had constant length (9 mm) and three different diameters (0.9, 1.3 an...
Sulfuration Resistance of Five Experimental Ag-Pd-Au-Cu Alloys with Low Pd Content of 10 or 12%
Ag-Pd-Au-Cu alloys Low Pd content Sulfuration resistance
2009/9/14
Commercial Ag-based alloy (46Ag-20Pd-12Au-20Cu alloy) is widely used in Japan as a casting alloy. As opposed to the commercial composition, we prepared five experimental Ag-based alloys with reduced P...
Effect of additive metals, Sn, Ga, and In in Ag-Pd-Au-Cu alloys on initial bond strength of 4-META adhesive cement to these alloys
Ag-Pd-Au-Cu Alloy Bond Strength 4-META adhesive cement
2009/9/11
The purpose of this study was to investigate the effects of three additives, Sn, Ga, and In, as well as the main constituents, Pd and Cu, of Ag-Pd-Au-Cu alloys on the initial bond strength of 4-META a...
Blood and Fingernail Copper (Cu) and Magnesium (Mg) Levels of Children With Acute Lymphoblastic Leukemia
Leukemia copper magnesium fingernail
2009/7/3
In this study, serum and fingernali Cu and Mg levels of 10 children with acute Iymphoblastic leukemia and 12 healthy children were determined. Copper and magnesium levels of the sera and supernatants...
Metallothionein-IIA gene transcription in cisplatin-resistant cells and its metal-signalling mechanism by Cu(II) ion
Metallothionein-IIA gene transcription cisplatin-resistant cells metal-signalling mechanism
2009/4/1
Increased metallothionein (MT)-IIA transcription is found in some cells with acquired resistance to cisplatin (CDDP). It is also known that mammalian MT is induced by copper. MT induction by TPA (12-O...
The changing rates of serum Cu and the estimated Cu requirements in inpatients with enteral liquid foods
serum Cu enteral liquid foods
2009/4/1
The almost elderly inpatients with enteral liquid foods of tube feeding were divided into 5 groups of I to V. In this study 60 inpatients (28 men, 32 women) aged mean 78.8 years were given with Cu - p...
The relationship between nonceruloplasmin-bound Cu and serum Cu levels in inpatients
nonceruloplasmin-bound Cu serum Cu levels
2009/4/1
Serum nonceruloplasmin - bound Cu was calculated as the formula : serum Cu - serum ceruloplasmin × 2.89, when one molecule of ceruloplasmin (CEP) was combined with 6 atoms of Cu. In this study 55 inpa...