乙二醛

Glycerin and the glycol matter behind the combustion, not only may make smoker trouble bladder cancer, moreover the what comes into being acrolein may restrain the air tube and cilium secreta from lung inner snapout, increase the chance suffering from the tracheitis and emphysema thereby , make the person state of illness developing this two kinds disease increase weight and.

甘油和乙二醇在燃烧后的物质，不但可能使吸烟者患膀胱癌，而且所产生的丙烯醛可抑制气管和纤毛分泌物从肺内排出，从而增加患气管炎和肺气肿的机会，并使患有这两种病的人病情加重。

Part I is devoted to the desensitizing mechanism of a widely-used dentine desensitizer that is the aqueous solution of 35% 2-hydroxyethylmethacrylate plus 5% glutaraldehyde. HEMA, GA and the mixture of HEMA + GA were used to interact with dentin, collagen, hydroxyapatite and bovine serum albumin individually.

Gluma由35％的甲基丙烯酸羟乙酯与5％的戊二醛的水溶液组成，是一种常用的牙本质脱敏药物，但关于其脱敏的机理一直有争论。

In chapter four molecular modeling method is employed to comparatively study five S-allyl γ-hydroxy ketene dithioacetals reactions of Thio-Claisen rearrangement with and without zeolite catalysts.

第四章用分子模拟途径研究了在有、无分子筛催化条件下五种丙烯基羟基乙烯酮二硫代乙缩醛Thio-Claisen重排反应。

The effects of the food additive butylated hydroxyanisole and the antibiotic Norfloxacin on swordtail fish were measured by considering a number of parameters, including glutathione S\|transferase, catalase, 7-ethoxyresorufin-o-dealkylases and malondialdehyde contents.

研究了叔丁基对羟基茴香醚(butylated hydroxyanisole， BHA)和诺氟沙星(norfloxacin， NFLX)对剑尾鱼的急性毒性及其肝脏谷胱甘肽硫转移酶、丙二醛、过氧化氢酶及7-乙氧基异吩恶唑酮-脱乙基酶活性的影响。

METHODS: Fresh bovine tendo calcaneus collagen was dispersed in 0.5 mol/L acetic acid, co-precipitated with chitosan and lyophilized. Dry membranes were cross-linked in 0.05% glutaraldehyde for 24 hours. In vitro its degrading rate was measured by use of collagenase degrading test. The chitosan-collagen membrane was implanted to subcutaneous dorsal sites of SD rats. After implantation, histocompatibility, vascularity and degradation were observed in vivo.

以酸溶法制备胶原溶液，添加一定比例的脱乙酰化几丁质，冻干成膜，0 。0 5 %戊二醛溶液浸泡交联，行体外酶降解实验，检测其耐受酶降解能力；将制备的几丁质-胶原蛋白膜包埋于 36只 SD大鼠皮下，术后 3、5天，1、2、3、4、6、8和 12周取材，检测其组织相容性、血管化能力及材料在体内降解情况。

A series of methyl 2,7,7-trimethyl-5-oxo-4-aryl1,4,5,6,7,8- hexahydroquinoline -3-carboxylate were synthesized by the reaction of aromatic aldehydes,dimedone and methyl acetoacetate using ammonium acetate as catalyst in glycol under microwave irradiation with 82%～98% yields in 4～6 min.

微波辐射下以芳醛、达咪酮、乙酰乙酸甲酯为原料，乙二醇为溶剂，醋酸铵为催化剂合成了一系列2，7，7-三甲基-5-氧代-4-芳基-1，4，5，6，7，8-六氢喹啉-3-羧酸甲酯化合物，反应时间4~6 min，产率82%~98%。

The yield is above 92.7% under the optimum conditions. It showed that titanium sulphate doped lanthanum oxide has higher catalytic activity in the synthesis reaction of cinnamaldehyde glycol acetal and the catalyst can be used repeatedly.

证明搀杂了氧化镧的硫酸钛对肉桂醛缩乙二醇的合成反应具有较高的催化活性，并且催化剂可以重复使用。

The purpose of this paper was to study the effect of Ginkgo biloba Composita on liver collagen fibrosis. The 86 patients were suffering from chronic persistant and active hepatitis B with early fibrosis confirmed by liver biopsy.

应用复方银杏叶冲剂治疗86例慢性乙型迁延性和活动性肝炎早期纤维化患者，疗程3个月，以血清层粘连蛋白、血清Ⅲ型前胶原肽、超氧化物歧化酶、丙二醛及部分光、电镜活检为指标。

Four new salicylaldehyde derivatives with a glucose or mannose moiety were synthesized with 2-tert-butylphenol or 4-tert-butylphenol as the starting material, followed by the formylation, chloromethylation, nucleophilic substitution reaction with the desired carbohydrate. The salicylaldehyde derivatives condensed with ethylenediamine to give the Schiff bases, which coordinated with Mn to afford four novel sugar-based Salen Mn complexes.

首先，分别以2-叔丁基苯酚和4-叔丁基苯酚为起始原料，经过甲酰化反应、氯甲基化反应、和糖类衍生物的亲核取代反应制得了四种新型并入葡萄糖基或甘露糖基的水杨醛衍生物，将它们与乙二胺缩合生成希夫碱配体，得到的配体与过渡金属Mn~(3+)配位制备出四种新型含糖基的Salen Mn配合物。

WANG Wei-Ting, GUO Lian-Jun, QU Ling, WANG Fang, LU Qing, QIAN Jia-Qing(Department of Pharmacology, Tongji Medical College, Huazhong Universityof Science and Technology, Wuhan 430030, China)By using decapitating, intravenous injection of saturated MgCl2 and legation of bilateral carotid arteries with vagi, theeffects of 1-(2,6-dimethylphenoxy)-2-(3,4-dimethoxyphenylethyl- amino) propane hydrochloride on survival time in mice were studied. With the model of cerebral ischemia for 20 min and reperfusion for 10 min, effects of DDPH on the superoxide dismutases activity and malondialdehyde content in brain tissue and pathological changes were studied.

采用断颅，iv饱和MgCl2溶液及结扎双侧颈总动脉和迷走神经等法造成小鼠脑缺血模型，观察1-(2，6-二甲基苯氧基)-2-（3，4-二甲氧基苯乙氨基）丙烷盐酸盐对小鼠脑缺血后存活时间的影响；采用小鼠脑缺血（20 min）再灌注(10 min)模型，观察DDPH对脑组织超氧化物歧化酶活性，丙二醛含量及组织病理损伤的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。