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The X-ray structures of the crystals of bovine pancreatic β- trypsin soaked with amylamine as a probe were studied and compared in cydohexane and aqueous solution, respectively.

巫广腾;黄其辰;朱广宇;钱民协;唐有祺摘要:丝氨酸蛋白酶是有机溶媒中研究酶促反应的主要对象之一。其中的胰蛋白酶在生物体内有重要的作用,对其抑制剂如苯甲脒衍生物的研究可应用于治疗很多疾病。

objective the effects of anthocyanin pigment from maize purple plant on resisting lipid peroxidation were investigated.methods the inhibition of anthocanin pigment from maize purple plant was examined in vitro that autcoxudation of lecithin liposome system induced by fe2+.50 mice were randomly divided into 5 groups.vehicle and different dose anthocyanin pigment from maize purple plant were given respectively,and then experimental injury of mice liver was induced to make use of bromobenzene and the content of mda was determined in liver homogenate.results the inhibition rates of anthocyanin pigment from maize purple plant on linoleic acid oxidation was higher that of ascorbic ascorbic acids.the content of mda in homogenate in middle and high dose of pigment were significantly lower than that in low dose and the injured control group.there were no significat differences in the content of mda in homogenate between low dose group and injury control group.conclusion the anthocyanin pigment from maize purple plant have the capability to resist lipid peroxide.

目的 探讨玉米紫色植株色素抗脂质过氧化的作用。方法体外实验测定玉米紫色植株花色苷色素在fe2+引发的卵磷脂脂质体体系中抗氧化活性。体内实验,取50只小鼠随机分成5组,分别给予溶媒和不同剂量的色素,然后采用溴代苯致实验性肝损伤,测定肝匀浆的丙二醛含量。结果在由fe2+引发的卵磷脂脂质体体系中玉米紫色植株色素对脂质过氧化有明显的抑制作用,抑制率随样品的浓度增高而增大,并且明显优于抗坏血酸。在溴代苯致小鼠实验性肝损伤模型实验中,中、高剂量组的丙二醛含量均低于损伤模型组。低剂量组和损伤模型组比较丙二醛含量差异无统计学意义。

With the volatile oil content of Dalbergia odorifera as an index, the stability of the inclusion compound was examined under strong light, high temperature and volatilizing, respectively. In addition, the heat stability of the inclusion complex was investigated by DSC-TGA.

方法在不同溶媒的作用下以饱和水溶液搅拌法包合花梨木挥发油β-环糊精包合物,以花梨木挥发油含量为测定指标,分别对花梨木挥发油β-环糊精包合物和混合物进行强光照射、高温、挥发性实验并通过DSC-TGA对包合物进行了热稳定性研究。

Methods The effect of the decoct time, the decoct times and the solvent amount on the chief effective composition in Waishangruyi Ointment were studied by orthogonal design.

采用正交试验法对外伤如意膏组方成分进行考查,以药材主要有效成分为指标,考查溶媒用量、提取次数、提取时间等因素的影响。

ObjectiveTo determine the contents of ferulic acid in extraction of Chuanxiong of different solution.

目的测定川芎在不同溶媒提取下活性成分阿魏酸的含量。

The pegylated polylactide-poly glycolide nanoparticle, whose surface was co-modified withmaleimide-polyethylene glycol and methoxy-polyethylene glycol, was made by double-emulsion and solvent evaporation method andcovalently conjugated with thiolated lactoferrin via its maleimide functionalgroup.

第一章首先由复乳/溶媒蒸发法制备马来酰亚胺—聚乙二醇(Maleimide-PEG,MAL-PEG)和甲氧基聚乙二醇表面共修饰的聚乳酸-聚羟基乙酸纳米粒,然后通过其表面MAL-PEG与巯基化Lf共价连接而制备Lf-NP_。

Methods Ninety-six rats were randomly divided into four groups: normal saline was instilled intratracheally in control group; lipopolysaccharide was instilled intratracheally in other three groups, then vehicle (1% alcohol in saline) dexamethasone and MT were injected intraperitoneally in these groups, respectively.

方法96只大鼠随机分为4组:对照组气管内滴注生理盐水;另外3组气管内滴注等量脂多糖(lipopolysaccharide, LPS),并分别腹腔注射溶媒、地塞米松(dexamethasone, DEX)和MT。

Woodson or apocynum venetum Linn as raw material, it utilizes the method of decoction and alcohol sedimentation to remove impurity. After extract is separated by macroporous adsorptive resins, then use polydextran gel LH-20 to purify, obtain isoquercitrin. Compared with the method of traditional silica gel column chromatography, this method has characteristics such as: experiment period is short, dissipation of organic dissolvent is little, yield of produced product is high, and purity coefficient is fine and so on. Isoquercitrin produced by this invention can be provided for medicine research or used as chemistry control article.

Woodson或罗布麻的叶为原料,采用水提醇沉除杂的方法,提取液经大孔吸附树脂分离后再用葡聚糖凝胶LH-20纯化得罗布麻甲素,此法与传统硅胶柱层析的方法相比,具有实验周期短,有机溶媒消耗少,制得的产品得率高和纯度好的特点,本法制得的罗布麻甲素可供药物研究或化学对照品使用。

Results Altogether verifies prescription 21,336,Antibiotic prescription was 7,468,nonreasonable usage was 897,Separately in solvent use,for medicine plan,pharmacological action,combination,repetition,dosage insufficiency as well as use not when the aspect has the problem.

结果 共审核处方21336张,其中抗生素处方7468张,存在不合理用药897张,分别在溶媒使用、给药方案、药理作用、合并用药、重复用药、剂量不足以及使用不当方面存在问题。

Results The optimum conditions for the extraction of Peucedanum praeruptorum Dunn was as follow: 80 % alcohol was used as solvent, and 8 times the amount of alcohol was added, the mixture was kept refluxing for 1.0 h for the first time; then 6 times the amount of alcohol was added and the mixture was kept refluxing for 0.5 h for the second time; Four times the amount of alcohol for 0.5 h for the last time.

结果 白花前胡的最佳提取工艺为用质量分数80 %的乙醇提取3次,提取时间分别为1.0、0.5、0.5 h,3次所用溶媒量分别为药材质量的8、6、4倍;按照筛选出的最佳工艺条件进行的3次重复性实验,测得浸膏中8-甲氧基补骨脂素含量质量分数为0.094 %,折合1 g生药中含量为0.171 2 mg,与预测值基本一致。

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推荐网络例句

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。