the 1

Amino-6-nitrobenzodifuroxan was prepared through a three-step reaction from starting material 3, 5-dinitrobenzoic acid:(1)3, 5-dinitroaniline (1) was synthesized from the reaction of DNBA and hydrazoic acid in inert solvent 1, 2-dichioroethane through Schmidt rearrangement with yield of 89.6%;(2) 1 was subjected to nitration to prepare pentanitroaniline (2) with yield of 51.1%;(3) The title compound was prepared from 2 and sodium azide in acetic acid through denitrogenation and then Schmidt rearrangement with yield of 86.8%, m.p.204℃～206℃.

以3，5-二硝基苯甲酸为原料经过3步反应合成了7-氨基6-硝基苯并二氧化吠咱：第1步反应，在二氯乙烷惰性溶剂中，DNBA与叠氮酸反应并发生Schmidt重排反应生成3，5-二硝基苯胺(1)，产率89.6%；第2步反应，1在含100%硫酸的硝硫混酸中硝化生成五硝基苯胺(2)，产率51.1%；第3步反应，2与叠氮酸反应，不经分离直接进行热解脱氮、Schmidt重排反应，得到目标化合物， m.p.204℃~ 206℃，产率86.8%。

Objective To evaluate the damage degree of hydronephrotic kidneys by detecting insulin-like growth factor (IGF-1), endothelin (ET-1), transforming growth factor (TGF-β1) and monocyte chemoattractant protein (MCP-1) expression in children with hydronephrosis.

目的 检测肾积水患儿病肾肾组织胰岛素样生长因子(IGF-1)、内皮素(ET-1)、转化生长因子(TGF-β1)及单核细胞趋化蛋白(MCP-1)的表达变化，探讨其与病肾损害程度的关系。

Among of them, NC (1-13) NH〓, NC (1-5) NH〓 had the equivalent hyperalgesic effects to NC, however, the effects of NC (1-13) NH〓 was lower than that of them. All of them could antagonize the effects of endomorphins -induced analgesia like NC.

其中NC（1-13）NH〓和NC（1-5）NH〓与NC的效果相当，但NC（1-13）NH〓的作用要弱于NC；NC（1-13）NH〓、NC（1-5）NH〓和NC（1-13）NH〓与NC一样可以对抗吗啡、内吗啡肽-1和内吗啡肽-2的镇痛作用。

We reconstructed the 3-D and virtual endoscopy image about nasal septum, frontal area of the apertura of sphenoidal sinus, sphenopalatine foramen, sphenopalatine artery and sphenoidal sinus use Volume Rendering, Multiplanar Reformation, Virtual Endoscopy and Curved Planar Reformat, and measured and ,about undertaked The nose, nasal septum, sphenopalatine artery, anterior region of the aperture of sphenoidal sinus, sphenopalatine artery and adjacent structures of hypophysial fossa were dissected, observed, measured and analysised the dependency anatomic structure at the same time.

结果： 一、标本解剖 1、鼻孔长径11.32±0.82(10.2~13.2)mm，鼻孔短径7.85±1.21(5.2~9.8)mm。鼻中隔厚度在前、中、后部分别为5.02±0.42(3.8~5.4)mm、5.57±0.47(4.5~6.4)mm、5.55±0.55(4.8~6.4) mm。 2、鼻中隔骨与软骨交界处距前鼻棘21.26±2.47(18.1~27.6)mm，距鼻孔内侧缘中点33.72±3.52(27.1~40.6)mm，距鼻小柱30.12±2.84(26.9~36.8)mm，距蝶窦口下缘38.04±3.49(32.4~45.1)mm，距后鼻孔41.82±3.96(36.9~50.1)mm。四方软骨中部厚度、边缘厚度、前后径、上下径分别为：1.12±0.13(0.92~1.42)mm、1.28±0.24 (0.83~1.67)mm、30.93±4.52(24.9~40.6)mm、29.94±2.14(24.8~34.3)mm。 3、蝶窦口长5.64±0.39(4.92~5.94)mm，宽3.58±0.22(3.10~3.96)mm，距上鼻甲尾部9.5±0.9(8.5~12.1)mm，距上鼻道未端14.5±1.1(12.5~16.4)mm，距中鼻甲尾

The leaf shape indexes of transgenic and control seedlings increase lightly when the IAA treatment concentrations are in two regions of 0~0.01mmolL^(-1) and 1.0~10.0mmolL^(-1) respectively, while LSIs decrease when IAA concentrations are between 0.01mmolL^(-1) and 1.0mmolL^(-1) this implies the depression effect on the growth in longitudinal is greater than that in transversal for both transgenic and control mesophyllous cells.

激素浓度在0~0.01mmolL^(-1)和1.0~10.0mmolL^(-1)两个区域时，转化株和非转化株的叶形指数略有增加，而在0.01~1.0mmolL^(-1)范围内，两者的叶形指数均呈下降趋势，表明IAA在此浓度范围内，叶肉细胞沿主叶脉方向的纵向生长受到的抑制强于横向生长所受到的抑制。

RESULTS:Using nubilous inhalation or intragastric administration,artesunate significantly inhibited the guinea-pig model asthma in a dose-dependent manner.Its ED50 were (99.95±7.69)mg.L-1(n=4) and (15.64±1.25)mg.kg-1.d-1(n=4) respectively.

结果：雾化或灌胃给药，青蒿琥酯均对药源性哮喘呈现剂量依赖性明显的抑制作用，其半数有效剂量(ED50)分别为(99.95±7.69)mg.L-1(n=4)和(15.64±1.25)mg.kg-1.d-1(n=4)，其抑制作用与给药的剂量之间呈良好线性关系。

Methods Forty rats were randomized into normal control group and FS group. The normal control group was fed with conventional forage. FS group was fed with dry forage mixed with FS powder for 3 months, the preliminary dose of FS was 200 mgkg^(-1)d^(-1) and then increased progressively by l00 mgkg^(-1)d^(-1) to ensure over half of the rats having diarrhea, and the final dose was 2800 mgkg^(-1)d^(-1). The frequency and amplitude of colic slow wave were detected and the changes of myenteric plexus and ICC were observed by zinc iodide -osmic acid staining method.

方法］SD大鼠40只，随机分为2组：正常对照组、番泻叶组（饲以含番泻叶粉的乾饲料，起始剂量为200 mgkg^(-1)d^(-1)，以100 mgkg^(-1)d^(-1)剂量递增，保持对半数以上动物有泻下作用，连续3个月，终剂量为2800 mgkg^(-1)d^(-1)，检测大鼠结肠慢波的频率及振幅，采用碘化锌－锇酸法观察肌间神经丛及ICC变化。

Compared with theoretical values 49.0%C,7.8%H,17.1%N the elemental analysis results of YXA2.3 that was 45.1%C,4.7%H and 11.1%N showed that oxycellulose chloride were aminated only partially in about 45%yield because of their huge molecular volume.

对YXA2.3进行有机元素分析结果为：C 45.1，H 4.7，N 11.1(理论值为：C 49.0，H 7.8，N 17.1)，其中11.1＜17.1，4.7＜7.8，这是由于大分子的特性，氧化纤维素的氯化物只部分发生的胺化。

There are four kind of isoforms of endothelin in human and other mammals named ET-1, ET-2, ET-3 and ET-β, which are slightly different in construction and pharmacological effect. In human beings, ET-1 is the dominative subtypes. ET-1 remains in blood at a low level about 5ng per liter on physical state. It is synthesized, stored, released and metabolized locally. The half-life of ET-1 is about 1 hour. ET-1 is the most potent vasoconstrictive factor till now, and it is more functional in vein than in artery. In vascular bed, there are two kind of ET receptors. Type A mainly located in smooth muscle cells, whereas type B in endothelial cells. The latter can stimulate intimal hyperplasia via a parasecretion way and activate some oncogenes such as c-fos and c-myc and then enhance their expression. These alterations result in constriction of blood vessels, thus the SMC steps into proliferate state from silent state.

人及哺乳动物体内有四种结构及药理学性质略有差异的异物体，分别为ET-1、ET-2、ET-3、ET-β，而在人主要是ET-1，在生理条件下，ET-1在血浆中含量较低，约为5ng〓，故ET-1不是一个循环激素，而是局部合成释放，局部起作用的活性物质，半衰期约1小时，ET-1是目前已知的最强的血管收缩剂，对静脉的作用比动脉强，在血管床，ET受体有A、B两型，A型主要分布在平滑肌细胞，B型主要分布在内皮细胞，它可以通过旁分泌途径刺激内膜增生，具有有丝分裂原效应，可以激活某些癌基因如C-fos、C-myc使其表达增强引起血管收缩，使静止期SMC进入增殖期，还可以通过信号传导途径，与bFGF、GTF-β、PDGF等生长因子协同作用，起共有丝分裂原作用。

NIPP-1 is a subunit of the major nuclear protein phos- phatase-1 (PP-1) in mammalian cells and potently inhib- its PP-1 activity in vitro.

尼普- 1是一种蛋白质亚基的主要核磷植酸酶- 1（聚丙烯- 1）在哺乳动物细胞高效促使inhib -它的PP - 1活性的作用。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。