nucleosides

简明释义

英[ˈnjuːklɪəʊsaɪdz]美[ˈnuːkliˌsaɪdz]

n. [生化]核苷（nucleoside 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The primary experiment has revealed that its aqueous extract has obvious effects of liver protection based on IR model, and that the main functional components are nucleosides.

前期的药理试验证明，其水提物对大鼠实验性肝缺血再灌注损伤模型(IR)有明显的保肝作用，而且进一步的研究表明主要起作用的成分为核苷类。

2.The results of methodological study demonstrated that the method met the requirements of the determination. The nucleosides in Rhizoma Pinelliae from different districts were determined.

方法学考察结果显示符合含量测定要求，并应用于不同产地虎掌南星的测定。

3.The motivation of this thesis is to determine urinary nucleosides and construct the data processing model, then to test the usefulness of urinary nucleosides as tu.

本论文的目的是以尿中核苷为研究对象，建立适合于临床应用的检测方法和数据处理方法，并考察其作为肿瘤标记物的可行性。

4.Objective To study the feasibility of modified urinary nucleosides metabolic profiling on lung cancer diagnoses.

目的探讨尿中修饰核苷代谢轮廓分析在肺癌诊断中的作用。

5.A method of polyamide thin layer chromatography applicable to the separation and identification of blocked nucleosides, nucleotides and oligonucleotides is herewith described.

本文介绍了用聚酰胺薄层层析的方法，分离和检定带保护基的核苷、核苷酸和低聚核苷酸。

6.Treating with nucleosides plus ALSS could accelerate the amelioration of liver function, shorten course of disease, decrease mortality and HBV DNA level.

核苷类似物联合人工肝治疗可加快肝功能好转，缩短病程，降低病死率，降低血清HBV DNA水平。

7.The results of methodological study demonstrated that the method met the requirements of the determination. The nucleosides in Rhizoma Pinelliae from different districts were determined.

方法学考察结果显示符合含量测定要求，并应用于不同产地虎掌南星的测定。

8.Objective: a bioactivity assay method was established to enhance the quality control of Muscular Amino Acids and Peptides and Nucleosides for Injection.

目的：采用生物活性测定法加强控制注射用肌氨肽苷的质量。

9.Nucleosides are essential building blocks for DNA and RNA synthesis.

核苷是DNA和RNA合成的基本构件。

10.Nucleosides play a crucial role in cellular metabolism.

在细胞代谢中，核苷起着至关重要的作用。

11.The pharmaceutical industry often uses nucleosides in antiviral drug development.

制药行业经常在抗病毒药物开发中使用核苷。

12.Some nucleosides can be modified to enhance their therapeutic effects.

一些核苷可以被修饰以增强其治疗效果。

13.Researchers are studying how different nucleosides can affect viral replication.

研究人员正在研究不同的核苷如何影响病毒复制。

作文

Nucleosides are essential components of nucleic acids, which are fundamental to all forms of life. A nucleoside consists of a nitrogenous base attached to a sugar molecule, specifically ribose in the case of RNA and deoxyribose for DNA. These structures play a crucial role in the storage and transmission of genetic information. Understanding nucleosides is vital for various fields, including biochemistry, molecular biology, and medicine.The significance of nucleosides can be seen in their involvement in cellular processes. They serve as building blocks for nucleotides, which are the actual units that make up nucleic acids. For instance, when a cell divides, it must replicate its DNA, and this process relies heavily on the availability of nucleosides. Without them, cells would be unable to produce new DNA strands, leading to failure in cell division and, ultimately, organismal growth and reproduction.Moreover, nucleosides are not just passive players in the genetic game; they have active roles in cellular signaling. Certain nucleosides, like adenosine, can function as signaling molecules that influence various physiological processes. Adenosine, for example, plays a crucial role in energy transfer within cells and also acts as a neurotransmitter in the brain, affecting sleep, mood, and cognition. This highlights how nucleosides extend their influence beyond mere genetic material.In recent years, research has increasingly focused on the therapeutic potential of nucleosides. Several antiviral and anticancer drugs are designed based on the structure of natural nucleosides. For instance, the drug Acyclovir, which is used to treat herpes infections, is a synthetic derivative of guanosine, a type of nucleoside. By mimicking the structure of natural nucleosides, these drugs can effectively interfere with viral replication, showcasing the importance of understanding their structure and function.Furthermore, the study of nucleosides extends into the realm of genetics and biotechnology. Techniques such as CRISPR-Cas9 gene editing rely on the precise manipulation of nucleic acids, which involves the use of nucleosides. As scientists continue to explore the potential of genetic engineering, a deep comprehension of nucleosides will be paramount.In conclusion, nucleosides are more than just structural components of DNA and RNA; they are integral to numerous biological processes and hold significant implications for medical advancements. From their role in genetic information transfer to their function in cellular signaling, the study of nucleosides offers insights into the very essence of life. As research progresses, our understanding of these vital molecules will undoubtedly expand, paving the way for innovative therapies and technologies that harness their power. Thus, grasping the concept of nucleosides is essential for anyone interested in the life sciences, as they are at the heart of what makes living organisms function and thrive.

核苷是核酸的基本组成部分，这对所有生命形式至关重要。核苷由一个氮基和一个糖分子（在RNA中为核糖，在DNA中为脱氧核糖）组成。这些结构在遗传信息的存储和传递中发挥着关键作用。理解核苷对于生物化学、分子生物学和医学等多个领域至关重要。核苷的重要性可以在它们参与细胞过程的过程中看到。它们作为核苷酸的构建块，而核苷酸是构成核酸的实际单位。例如，当细胞分裂时，它必须复制其DNA，而这一过程在很大程度上依赖于核苷的可用性。如果没有它们，细胞将无法产生新的DNA链，从而导致细胞分裂失败，最终影响有机体的生长和繁殖。此外，核苷不仅仅是在遗传游戏中充当被动角色；它们在细胞信号传递中也具有积极作用。某些核苷（如腺苷）可以作为信号分子，影响各种生理过程。例如，腺苷在细胞内能量转移中发挥着至关重要的作用，并且在大脑中作为神经递质影响睡眠、情绪和认知。这突显了核苷超越单纯遗传物质的影响。近年来，研究越来越关注核苷的治疗潜力。几种抗病毒和抗癌药物是基于天然核苷的结构设计的。例如，用于治疗疱疹感染的药物阿昔洛韦是鸟苷（一种核苷）的合成衍生物。通过模仿天然核苷的结构，这些药物可以有效干扰病毒复制，展示了理解它们的结构和功能的重要性。此外，核苷的研究还扩展到遗传学和生物技术领域。CRISPR-Cas9基因编辑等技术依赖于核酸的精确操控，这涉及到核苷的使用。随着科学家继续探索基因工程的潜力，深入理解核苷将是至关重要的。总之，核苷不仅仅是DNA和RNA的结构组成部分；它们在众多生物过程中不可或缺，并对医学进步具有重要意义。从它们在遗传信息传递中的作用到它们在细胞信号传递中的功能，对核苷的研究提供了对生命本质的洞察。随着研究的进展，我们对这些重要分子的理解无疑会扩展，为利用它们的力量铺平道路。因此，掌握核苷的概念对于任何对生命科学感兴趣的人来说都是必不可少的，因为它们是使生物体运作和生存的核心。