purine
简明释义
n. [有化] 嘌呤（四氮杂茚，尿杂环）；咖啡碱
英英释义
单词用法
同义词
| 核苷酸 | Purines are essential components of nucleotides, which are the building blocks of DNA and RNA. | 嘌呤是核苷酸的基本组成部分，核苷酸是DNA和RNA的构建块。 |
反义词
| 嘧啶 | Pyrimidines are one of the two types of nitrogenous bases in nucleic acids. | 嘧啶是核酸中两种氮碱基之一。 |
例句
1.Gout is caused by abnormal metabolism of purine.
痛风是由于嘌呤代谢异常引起的疾病。
2.But if his work stands up to the scrutiny of others, then looking for another purine-receptor blocker would surely be a worthwhile endeavour.
但是，如果他的研究成果经得起别人的推敲，那么寻找另一个嘌呤受体阻滞剂将会是值得一试的途径。
3.Uric acid is a product of purine metabolism that can excrete freely in urine.
尿酸为嘌呤代谢产物，从尿中自由排出。
4.But more interestingly, the researchers found three nucleobase-related molecules: purine, 2, 6-diaminopurine, and 6, 8-diaminopurine.
但更有趣的是，研究人员发现了三个碱基相关的分子：嘌呤，2,6 -，6,8 – 二 氨基嘌呤。
5.Objective To investigate the effect of Dantrolene on purine nucleotide metabolism in myocardial ischemia-reperfusion.
目的探讨丹曲林对缺血再灌注心肌嘌呤核苷酸代谢的影响。
6.Uric acid (UA) is an end product from purine derivatives in human metabolism.
尿酸是嘌呤的最终代谢产物。
7.Adenine a nitrogenous base (6 - amino - purine) found in DNA and RNA.
腺嘌呤：在DNA和RNA中发现的含氮的碱基(6-氨基嘌呤)。
8.Foods such as red meat and seafood are rich in purines 嘌呤.
红肉和海鲜等食物富含嘌呤 purines。
9.Certain medications can help lower purine 嘌呤 levels in patients with gout.
某些药物可以帮助降低痛风患者体内的嘌呤 purine 水平。
10.The metabolism of nucleotides involves the breakdown of purines 嘌呤 into uric acid.
核苷酸的代谢涉及将嘌呤 purines 分解为尿酸。
11.The body produces purines 嘌呤 naturally as part of DNA and RNA synthesis.
身体自然产生嘌呤 purines，作为DNA和RNA合成的一部分。
12.High levels of purines 嘌呤 in the diet can lead to gout.
饮食中高水平的嘌呤 purines 可能导致痛风。
作文
The study of biochemistry reveals the intricate and fascinating world of molecules that are essential for life. Among these molecules, one category stands out due to its crucial role in cellular processes: nucleotides. Nucleotides are the building blocks of nucleic acids, which include DNA and RNA. At the heart of many nucleotides are nitrogenous bases, two of which are known as purines. These are vital components that play a significant role in genetic information storage and transfer. Understanding what purine (嘌呤) is and how it functions can provide insights into the complexity of biological systems.Purines are characterized by their double-ring structure, which distinguishes them from pyrimidines, the other type of nitrogenous base. The most common purines found in biological systems are adenine and guanine. These bases pair with specific counterparts in the DNA and RNA structures, with adenine pairing with thymine (in DNA) or uracil (in RNA), and guanine pairing with cytosine. This complementary base pairing is fundamental to the processes of DNA replication and transcription, ensuring that genetic information is accurately copied and expressed.In addition to their structural roles in nucleic acids, purines (嘌呤) also participate in various metabolic pathways. For example, ATP (adenosine triphosphate), which is a nucleotide that contains adenine, serves as the primary energy carrier in cells. The hydrolysis of ATP releases energy that powers numerous biochemical reactions, making it essential for cellular function. Furthermore, purines are involved in signaling pathways, such as those mediated by cyclic AMP, which regulate numerous physiological processes including metabolism, cell growth, and apoptosis.The importance of purines (嘌呤) extends beyond basic cellular functions; they also have implications in health and disease. Abnormal levels of purine metabolism can lead to various medical conditions. For instance, excessive accumulation of uric acid, a product of purine degradation, can cause gout, a painful inflammatory arthritis. Understanding purine metabolism can therefore aid in developing therapeutic strategies for such conditions.Moreover, the dietary intake of purines is another aspect worth considering. Foods high in purines, such as red meat, seafood, and certain legumes, can influence uric acid levels in the body. Individuals prone to gout or other related conditions are often advised to monitor their purine consumption to manage their health effectively.In conclusion, purines (嘌呤) are not merely chemical compounds; they are fundamental to the very essence of life. Their roles in genetic encoding, energy transfer, and cellular signaling underscore their significance in biochemistry. As research continues to unveil the complexities of molecular biology, the understanding of purines (嘌呤) will undoubtedly evolve, offering new perspectives on health, disease, and the molecular foundations of life itself.
