alkaloid

简明释义

英[ˈælkəlɔɪd]美[ˈælkəlɔɪd]

n. [有化] 生物碱；植物碱基

英英释义

单词用法

同义词

反义词

例句

1.Many poison dart frogs secrete lipophilic alkaloid toxins through their skin.

许多毒镖蛙会将其毒素隐藏在皮肤中。

2.Conclusion it has good prospect in development and application for isoquinoline alkaloid composition of Tongbangchui.

结论铜棒锤中含有异喹啉类生物碱，具有良好的开发应用前景。

3.The expression of ICAM-1 in BHD, alkaloid and glycoside groups were decreased(P<0.05).

补阳还五汤组、生物碱组、苷组ICAM-1表达低于模型组（P<0.05）。

4.The Saussurea involucrata chemical composition was: alkaloid, flavanone, sterol, volatile oil, 16 kind of amino acids, Saussurea involucrata lactone and so on.

雪莲化学成分为：生物碱、黄酮、甾醇、挥发油、16种氨基酸、雪莲内酯等。

5.Objective:To study the alkaloid constituents of the Uncaria macrophylla Wall.

目的：研究大叶钩藤生物碱部分的化学成分。

6.Nicotine is a colorless, poisonous alkaloid.

尼古丁是无色有毒生物碱。

7.This paper belongs to one part of research of yohimbine alkaloid.

本文所述内容属于天然生物碱育亨宾合成研究课题的一部分。

8.Alkaloid One of a group of organic compounds found in plants, which are poisonous insoluble crystalline compounds.

一种在植物中发现的有机化合物，通常是有毒的、不溶于水的结晶化合物。

9.Analyse composition of purine type Alkaloid in Baimao Tea from Nankun mountain by using HPLC.

采用高效液相色谱法分析南昆山白毛茶嘌呤类生物碱成分。

10.The discovery of new alkaloids has led to advancements in cancer treatment.

新生物碱的发现促进了癌症治疗的进展。

11.Some alkaloids are known to have psychoactive effects.

一些生物碱已知具有精神活性作用。

12.Many plants produce alkaloids, which can have medicinal properties.

许多植物产生生物碱，它们可能具有药用性质。

13.Coffee contains caffeine, a well-known alkaloid that acts as a stimulant.

咖啡含有咖啡因，一种众所周知的生物碱，它起到兴奋剂的作用。

14.Tobacco is rich in nicotine, an alkaloid that is highly addictive.

烟草富含尼古丁，这是一种高度上瘾的生物碱。

作文

Alkaloids are a class of naturally occurring organic compounds that mostly contain basic nitrogen atoms. They are primarily found in plants and have significant physiological effects on humans and other animals. The term 'alkaloid' comes from the Arabic word 'al-qaly', which means 'the ashes of the saltwort plant'. These compounds are known for their diverse range of pharmacological activities, making them essential in medicine and pharmacology. For instance, morphine, a well-known alkaloid derived from the opium poppy, is widely used for its potent analgesic properties. Similarly, caffeine, another common alkaloid found in coffee and tea, acts as a stimulant, affecting the central nervous system.The structure of alkaloid (生物碱) compounds is quite complex, often featuring a bicyclic or tricyclic structure that contributes to their biological activity. Many alkaloids (生物碱) have been isolated and characterized, leading to the discovery of new drugs and therapies. For example, the alkaloid quinine, derived from the bark of the cinchona tree, has been used for centuries to treat malaria. The effectiveness of such compounds highlights the importance of alkaloids (生物碱) in traditional medicine and modern pharmacology.In addition to their medicinal uses, alkaloids (生物碱) can also have toxic properties. Some plants that produce these compounds are known to be poisonous, which serves as a defense mechanism against herbivores. For example, the infamous poison hemlock contains alkaloids that can cause respiratory failure and death if ingested. This dual nature of alkaloids (生物碱) – both therapeutic and toxic – makes them a fascinating subject of study in the field of natural products chemistry.Research into alkaloids (生物碱) continues to uncover new compounds with potential therapeutic applications. Scientists are exploring the biosynthesis pathways of these compounds to understand how plants produce them and how they can be harnessed for human use. The study of alkaloids (生物碱) also involves examining their interactions with biological systems, which can lead to the development of novel drugs with fewer side effects.In conclusion, alkaloids (生物碱) represent a vital area of research in both botany and medicine. Their diverse structures and functions make them valuable not only for their medicinal properties but also for their ecological roles. As we continue to explore the world of alkaloids (生物碱), we may discover new ways to treat diseases and improve health outcomes. The ongoing investigation into these remarkable compounds underscores the intricate relationship between nature and human health, reminding us of the treasures that lie within the plant kingdom.

生物碱是一类自然存在的有机化合物，主要含有基本的氮原子。它们主要存在于植物中，对人类和其他动物具有重要的生理作用。“生物碱”一词来源于阿拉伯语“al-qaly”，意为“盐草植物的灰烬”。这些化合物以其多样的药理活性而闻名，使其在医学和药理学中至关重要。例如，众所周知的生物碱吗啡源自罂粟花，因其强效的镇痛特性而广泛使用。同样，咖啡因是另一种常见的生物碱，存在于咖啡和茶中，作为兴奋剂影响中枢神经系统。生物碱（alkaloid）化合物的结构相当复杂，通常具有双环或三环结构，这对其生物活性起着重要作用。许多生物碱（alkaloids）已被分离和表征，导致新药和疗法的发现。例如，生物碱奎宁源自金鸡纳树的树皮，几个世纪以来一直用于治疗疟疾。这些化合物的有效性突显了生物碱（alkaloids）在传统医学和现代药理学中的重要性。除了药用用途外，生物碱（alkaloids）也可能具有毒性。一些产生这些化合物的植物被认为是有毒的，这作为一种防御机制来抵御食草动物。例如，臭茄这种植物含有生物碱，摄入后可导致呼吸衰竭和死亡。这种生物碱（alkaloids）的双重性质——既有治疗作用又有毒性——使其成为自然产物化学领域研究的迷人课题。对生物碱（alkaloids）的研究继续发现具有潜在治疗应用的新化合物。科学家们正在探索这些化合物的生物合成途径，以了解植物如何产生它们，以及如何利用它们造福人类。生物碱（alkaloids）的研究还涉及检查它们与生物系统的相互作用，这可以导致开发出副作用更少的新药。总之，生物碱（alkaloids）代表了植物学和医学研究的重要领域。它们多样的结构和功能使其不仅对药用特性有价值，而且对生态角色也有重要意义。随着我们继续探索生物碱（alkaloids）的世界，我们可能会发现新的治疗疾病和改善健康结果的方法。对这些非凡化合物的持续研究强调了自然与人类健康之间错综复杂的关系，提醒我们植物王国中蕴藏的宝藏。