在细胞生物学研究中使用的化学激活剂和抑制剂的综述。
A comprehensive review of chemical activators and inhibitors used in cell biology research.
供体细胞的细胞周期、细胞类型、冷冻处理和化学激活等方面都可能影响动物克隆的效率。
The effect of using donor cells of different cell cycle, cell type, chemical activation, as well as refrigeration, on cloning animal has been summarized.
有迹象表明，多效性植物激素实际上可能通过激活酶来发挥作用，这些酶从细胞壁释放出这些更为特殊的化学信使。
There are indications that pleiotropic plant hormones may actually function by activating the enzymes that release these other, more specific chemical messengers from the cell wall.
答：这套自动神经系统利用肾上腺激素(一种神经递质，或者称为化学信使)把信号发送到身体的各个部分，以便激活“斗争还是逃避”反应。
A: the autonomic nervous system USES the hormone adrenaline, a neurotransmitter, or chemical messenger, to send signals to various parts of the body to activate the fight-or-flight response.
它激活物质的内部化学构造，使它们的分子震动，然后碰撞在一起。
It roils the chemical innards of things, exciting their molecules to vibrate and crash into each other.
它们常常处于激活状态，而不需要受特殊化学信号激活。
Instead of needing to be activated by a specific chemical messenger, the engineered fat cells are always active.
相反，表观遗传过程主要是将化学结合到基团或组蛋白，后者是与DNA交织在一起形成染色体，从而激活或关闭基因。
Instead, epigenetic processes attach chemical groups to genes or to histones, proteins that are intertwined with DNA to form chromosomes, to activate genes or to shut them down.
为了激活这些辅助基因，那些被称为乙酰群的化学物质必须首先释放出那些紧紧被包裹住的脱氧核糖核酸。
To activate helper genes, chemical tags called acetyl groups must first loosen tightly wrapped DNA.
激活能就是使两个碰撞分子得以进行某特定的化学反应所必须具有的最低能级。
The energy of activation is the minimum energy level that two colliding molecules must possess in order to undergo a given chemical reaction.
博士随机测试了几万个细胞，寻找会激活这些基因的化学物。
Dr. Sinclair randomly tested tens of thousands of cells, searching for the chemical that would activate those genes.
动起来。迅速进行一阵有氧运动，通过给大脑摄入大量氧气、激活例如多巴胺的大脑化学物质，就可以减轻压力、提高注意力。
Start moving. A quick burst of aerobic exercise relieves stress and improves concentration by flooding the brain with oxygen and activating brain chemicals such as dopamine.
通过现代分析测试手段，对脑细胞激活素进行化学成分分析，以更好地研究该药的药理作用。
The chemical content of injectio cerebral cell active factor, was determined by modern analytic determination methods, inorder to study pharmacologic work better.
这些化学印记可激活、消除或加剧基因活动。
These chemical marks can activate, silence or crank up genes and their actions.
建立于目标基因激活和失活基础之上的几个化学分子诱导基因表达系统已有报道。
Various chemical inducible systems based on activation and inactivation of the target gene had been described.
将位错的增殖、湮没与相互反应看作化学反应，位错在热激活作用下具有扩散性质。
We regard the proliferation, the annihilating and the mutual reactions of the dislocations as chemical reactions, dislocations under action of heat activation will have properties of diffusion.
激活基因表达或使基因表达失活的化学诱导系统在确定基因功能及植物生物技术中有许多潜在的应用。
Chemically inducible systems that activate or inactivate gene expression have many potential applications in the determination of gene function and in plant biotechnology.
这些酶通过粘附于所谓的化学剂乙酰组蛋白来激活基因， 像线圈一样的蛋白以紧密创伤形式缠绕着DNA。
These enzymes activate genes by attaching chemicals called acetyl groups to histones, the spool-like proteins that hold DNA in a tightly wound form.
这类药物至少激活白藜芦醇介导的多种化学通路中的一种。
The drugs activate at least one of the chemical pathways triggered by resveratrol, a substance that also showed increased endurance in mice.
实际上，我们与生俱来就有一些产生快乐和欣喜感受的强烈化学物质。但是，我们怎样才能激活和享受这些令人惊奇的奇妙感受呢？
The fact is we were born with powerful chemicals already in our bodies that can give us these great feelings and highs.
激活创建一个快速的内部孔隙网络，并赋予一定的表面化学(功能组别)内的每一个粒子。
Activation creates a fast internal pore network and imparts certain surface chemistries (functional groups) inside each particle.
研究人员发现，小鼠的星形胶质细胞可以产生化学增活素作为对TNFR激活以后的应答。
The researchers found that astrocytes in mice were producing chemokines in response to activation of their TNFR molecules.
当TNFR被激活以后，它使细胞释放出信号分子-化学增活素，化学增活素引导免疫细胞到达破坏或感染的位点。
When TNFR is activated, it causes cells to send out signal molecules called chemokines that direct immune cells to the site of damage or infection.
母乳中的某些特定免疫细胞是直接攻击外来微生物的噬菌细胞，另一组免疫细胞则产生激活婴儿自身免疫反应的化学物质。
Certain immune cells in human milk are phagocytes that attack microbes directly. Another set produces chemicals that invigorate the infant's own immune response.
首先，其实人体并不能从日光中吸收维生素，而是特定波长的光(中波紫外线，UVB)可以激活皮肤内一种叫做7 -脱氢胆固醇的化学物。
First of all, the vitamin is not actually absorbed from the sunlight, but rather is made by the body when certain wavelengths of light activate a chemical called 7-dehydrocholesterol within the skin.
在ATP的生物化学和细胞及其衍生物是复杂的，多膜，它激活链接到许多细胞内信号系统受体。
The extracellular biochemistry of ATP and its derivatives is complex, and the multiple membrane receptors that it activates are linked to many intracellular signalling systems.
在ATP的生物化学和细胞及其衍生物是复杂的，多膜，它激活链接到许多细胞内信号系统受体。
The extracellular biochemistry of ATP and its derivatives is complex, and the multiple membrane receptors that it activates are linked to many intracellular signalling systems.
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