超活性

It was also found that at experimental concentrations there was no regularity for the change of activity of copper salicylate encapsulated in negatively charged liposomes, and copper salicylate encapsulated in liposomes with more negative charges could promote the dismutation of superoxide anion free radicals, however, so could copper salicylate encapsulated in liposomes with fewer negative charges only in lower concentrations.

并发现在实验浓度范围内，负电性脂质体包裹的水杨酸铜，活性变化无规则，且荷负电量多的脂质体包裹的水杨酸铜促进超氧自由基的歧化，而荷负电量少的脂质体仅在低浓度区对超氧的歧化表现为促进作用。

At the same time,the protective effect of mannital and VitC were assessed.Result:The serum level of creative phosphokinase and malon dialdehyde was higher,but superoxide dismutase activity was lower during reperfusion than in the ischemic period.The tissue structure and ultrastructure were damaged more seriously in reperfution period. After treated by mannital and VitC, the level of CPK and MDA in serum was lower, but SOD activity rasied, and the ultrastructure was better.

结果：再灌流组较缺血组血清CPK增高、MDA升高，再灌流组脑组织中MDA 升高，血清中SOD活力下降，再灌流组脑组织结构和超微结构破坏更加严重，应用自由基清除剂后血清中CPK降低，MDA含量降低，SOD活性升高，组织中MDA含量亦降低，超微结构较前好转。

Objective To study the toxicity of MnCl2 and the protective effect of vitamin C in human neuroblastoma cells in vitro.

目的 研究染锰不同浓度对 SH-SY5Y 细胞总超氧化物歧化酶、锰超氧化物歧化酶活性及丙二醛含量的影响，并观察维生素C对染锰多巴胺能神经细胞的保护作用，探讨锰的神经毒性作用机制及防治措施。

MATERIALS AND METHODS: One hundred patients with lower urinary tract symptoms were instructed to keep a 3-day voiding diary. Patients were instructed to record the time and volume of their water intake, voided urine volume, and number and time of sensation of urgency and episodes of urge incontinence. Patients were diagnosed according to their clinical findings as having a normal bladder, hypersensitive bladder, overactive bladder, polydipsia polyuria, or nocturnal polyuria. Thirty-six patients underwent a urodynamic study to further assess their lower urinary tract dysfunction, for which urodynamic results were classified as a normal bladder, detrusor overactivity, or bladder hypersensitivity.

材料与方法：一百位具有下尿路症状的病人经由指示记录三日排尿日志，每一位病人均记录其喝水及排尿的时问和容量，以及感觉急尿或发生尿急失禁的次数，根据其临床发现诊断为正常膀胱、超敏感性膀胱、膀胱过动症、多喝水性多尿症，或是夜间多尿症，其中三十六位病人接受了尿动力学检查以进一步评估其下尿路功能异常，依其尿动力学检查分类为正常膀胱，逼尿肌活性过强，或是膀胱超敏感性。

The O-2 production rate, H2O2 content, superoxide dismutase, peroxidase, ascorbate peroxidase, catalase and polyphenol oxidase and MDA content of petal of two tree peony cultivars 'Luoyanghong' and 'Huhong' during florescence and flower senescence were detected by the methods of conuentional biochemistry. The relationships among MDA content and others index were analyzed by the simple correlation coefficient, stepwise regression and the path-coefficient.

测定"洛阳红"和"胡红"2个牡丹品种开花和衰老过程中花瓣膜脂过氧化产物丙二醛、超氧自由基O(上标–下标 2、过氧化氢(H2O2)的含量及超氧化物歧化酶、过氧化物酶、抗坏血酸过氧化物酶、过氧化氢酶、多酚氧化酶的活性，并采用简单相关分析、逐步回归分析和通径分析等方法研究MDA含量与其他指标的关系。

For the synthesis reaction of chalcone, cyclohexanone aldolization and biodiesel,γ-Al_2O_3-NaOH-Na solid superacid has a satisfactory catalytic activity. With hypnone and phenylaldehyde as raw material, amount of catalyst 7.5% wt% of material, mole ratio of hypnone and phenylaldehyde 1:1.1, reaction temperature 40℃, after 3 hours, the yield of chalcone can be up to 96.88%. With cyclohexanone as raw material, amount of catalyst 10% wt% of material, reaction temperature 190℃, after 3 hours, dimmer of cyclohexanone can be up to 85.66%.

将该固体超强碱催化剂应用于查尔酮、环己酮自缩合以及生物柴油的合成反应中，该改性固体超强碱催化剂表现出了良好的催化活性：以苯乙酮和苯甲醛为原料，反应温度为40℃，催化剂用量为反应物总质量的7.5％，苯甲醛与苯乙酮摩尔比为1：1.1，反应3h查尔酮产率可达96.88％；以环已酮为原料，催化剂用量为原料总质量的10％，反应温度为190℃，反应3h，二聚物的总收率可达85.66％；以动物油和甲醇为原料，醇油摩尔为9：1，催化剂用量为动物油质量的2％，反应温度为70℃，反应3h后，生物柴油的收率可达91.8％。

The free radical scavenging properties of six Aloe species are to be investigated in some modified chemical system. The antioxidant was purified by silica column and thin layer chromatography and analyzed by HPLC. A fraction was purified from A. brevifolia Mill showed the most effective scavenging activities on 〓 and ·OH (66. 01% and 38. 98% respectively). With the analysis of IR spectrum, UV spectrum and mass spectrum, the structure of FA was identifed as 8-C-D-glucopyranosyl-2- [2-hydroxy] propyl-5-methyl-7-hydroxychromone. Its scavenging activity on free radicals is higher than that of aloe-emodin. Its antioxidant activity may be due to the phenoxyl on glucosyl chromone which can be react with free radicals and form relatively stable free radicals.

本研究利用分别产生超氧阴离子自由基和羟自由基的化学模型体系研究比较了不同品种芦荟提取物的清除活性氧自由基的抗氧化作用，进一步利用硅胶柱结合薄层层析法和反相高压液相色谱法，从短叶芦荟叶子中首次分离了具有较强自由基清除能力（超氧阴离子自由基和羟自由基清除率分别为66.01％和38.98％）的成分FA，利用红外光谱、紫外光谱和质谱等仪器分析结果推断出该活性成分的分子结构为8-C-吡喃葡萄糖-2-[2-羟基]-丙基-5-甲基-7-羟基对氧萘酮，它的自由基清除能力高于芦荟大黄素，是一种天然抗氧化剂。

Methyl α-naphthaleneacetate was synthesized by using α-naphthaleneacetic acid and methanol as raw materials and solid superacid TiO2/SO42- as a catalyst.

以固体超强酸TiO2／SO42-为催化剂，研究了α-萘乙酸与甲醇的酯化反应，探讨了催化剂种类、用量及活化温度等反应条件，发现固体超强酸TiO2／SO42-对α-萘乙酸与甲醇的酯化反应具有较高的催化活性，并使后处理简化。

Olid super acid of SO_4~(2-)/ZrO_2 and SO_4~(2-)/SnO_2 type have attracted much attention for its strong acidity and good performance in catalyzing organic synthesis reaction, while fewer reports on modification and application of SO_4~(2-)/Fe_2O_3 have been made.

O_4~(2-)／ZrO_2、SO_4~(2-)/SnO_2型固体超强酸因其较强的酸性，在催化有机合成反应中具有较高的活性而备受关注，而关于SO_4~(2-)／Fe_2O_3固体超强酸的改性及应用的报道相对较少。

Therefore, it is very convenient to construct photoactive supramolecular recognition systems, which fulfil the requirements of optical chemical sensors: to complete two affairs simultaneously, a recognition between host and guest, b signal expression related to recognition.

利用超分子体系的特性，可以方便地构造满足光化学传感器要求的具有光学活性的超分子识别体系：在识别分析对象的过程中，必须给出与识别过程相关的光学参数来完成信号表达过程。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。