胰酶

The pancreatic proterses trypsin,chymotrypsin and elastase are all derived from zymogen precursors by proteolytic activation.

胰腺的蛋白水解酶—胰蛋白酶、胰凝乳蛋白酶和弹性蛋白酶都从酶原前体衍生而来，即由蛋白水解而活化的。

However, commercially available CPB purified from porcine pancreas was very expensive, and was not totally free of other proteases, such as trypsin and chymotrypsin.

到目前为止，商业途径获得的羧肽酶B 主要从猪胰脏中提取，使得产品价格昂贵，同时也不可避免地混杂有其它蛋白酶，如胰蛋白酶，胰凝乳蛋白酶。

Before and after operation, the activities of serum phospholipases A2 (PLA2)and amylasewere assayed and the basal pressures of the ducts were measured when secretin was injected.

于手术前检测各组犬的血清磷脂酶(PLA2)和淀粉酶活性及背、腹胰管基础压并在胰泌素激发后15、30、45、60和90分钟各测压一次。

We make chloroacetylaion to N-terminal of Asp, and then convert this compound to GD dipeptide by aminolysis. Followed the lipase -catalyzed peptide synthesis of RGD in aqueous water-miscible organic cosolvent is studied. We set up a new efficient reaction method to synthesize RGD tripeptide. The problem that peptide containing polar amino acid can not be synthesized readily in organic solvent was solved. We offer a new experimental proof for PPL-catalyzed peptide synthesis and make a more general analysis for the effect of some factors in theory.

采用氯乙酰基保护天冬氨酸，然后进行氨解生成GD二肽，利用猪胰脂肪酶催化合成RGD三肽，着重解决了亲水氨基酸/肽片段底物的溶解性与合成产率低的问题，建立了一种新的有效合成RGD三肽的反应模型，并探索解决了极性较强的氨基酸的酶促肽合成的问题，对脂肪酶催化合成肽的影响因素从理论上作了较全面的分析，为肽片段的缩合反应提供了一种新思路。

Methods The models of isolated rat islets were established by collagenase digestion and dextran gradient centrifugation. The influence of various concentrations of amylin on both glucagon and insulin secretion was studied.

应用胶原酶消化和不连续密度梯度离心技术建立离体大鼠胰岛模型，研究不同浓度胰淀素对胰岛素和胰高血糖素分泌的影响。

Been used to express insulin, human growth factor, human tissue plasminogen activator, bovine chymosin (an enzyme used in cheese-making), and amylase and cellulase enzymes .

用来表达胰鸟素，人类生长因子，人类组织血浆酶原活化因子，牛凝乳酶，淀粉酶，纤维素酶等。

Been used to express insulin, human growth factor, human tissue plasminogen activator, bovine chymosin (an enzyme used in cheese-making), and amylase and cellulase enzymes .

用作带有真核生物基因的载体的宿主用来表达胰鸟素、人类生长因子，人类组织血浆酶原活化因子，牛凝乳酶，淀粉酶、纤维素酶等。

The enzyme production paralleled with biomass in early 8 days, subsequently activities declined slightly though its biomass continued upward. Tyrosine and tryptone at the concentration of 4g/L improved the enzyme production, reaching 2.49 and 2.0IU/mL respectively.

漆酶的产生与生物量在培养8d内呈现平行关系，但随后酶量并不随之而继续上升。4g/L的酪氨酸和胰蛋白胨有利于酶的产生，分别可使酶活力最高增加到2.49IU/mL和2.0IU/mL。

The results showed that: 1 SOD and GSH-PX activity of hepatopancreas and serum were significantly or extremely significantly increased when 5% or 10% alfalfa meal was added to the diet, whereas the MDA content of the two groups decreased. 2 The concentration of TC and TG in serum, hepatopancrac and muscle dropped as the amount of alfalfa meal increased.

结果显示，1添加5%和10%的苜蓿草粉能显著或极显著提高黄河鲤鱼血清和肝胰脏中超氧化物歧化酶和谷胱甘肽过氧化物酶活力，同时也能显著或极显著降低丙二醛含量，说明苜蓿草粉能有效地提高黄河鲤鱼的抗氧化能力。2血清、肝胰脏和肌肉中总胆固醇和甘油三酯含量都随着苜蓿草粉添加量的增加依次降低。

The enzyme that synthesizes fructose 2,6-bisphosphate(phosphofructokinase2;PFK2) and the enzyme that hydrolyzes it back to fructose 6-phosphate(fructose bisphosphatase2;FBPase2)are also regulate hormonally by glucagon that causes glycolysis to slow down when the blood glucose level falls.

合成果糖 2 ， 6-二磷酸的酶（磷酸果糖激酶； PFK2 ）和水解使它回到果糖 6-磷酸的酶（果糖二磷酸酶二； FBPase2 ）也是受胰高血糖素的调节，当血糖水平下降时使糖酵解变缓。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。