biologically active agent

简明释义

生物活性剂;

英英释义

例句

1.The new drug contains a potent biologically active agent that targets cancer cells.

这款新药含有一种强效的生物活性成分，能够靶向癌细胞。

2.Research shows that the biologically active agent in this plant can enhance immune function.

研究表明，这种植物中的生物活性成分可以增强免疫功能。

3.The biologically active agent used in the vaccine stimulates an immune response.

疫苗中使用的生物活性成分刺激了免疫反应。

4.Scientists are isolating the biologically active agent from the fungus for further study.

科学家们正在从真菌中分离出生物活性成分以进行进一步研究。

5.In traditional medicine, many herbs are considered to be biologically active agents.

在传统医学中，许多草药被认为是生物活性成分。

作文

In the field of biology and medicine, the term biologically active agent refers to any substance that has an effect on living organisms. These agents can be natural or synthetic, and they play crucial roles in various biological processes. Understanding the mechanisms by which these agents operate is essential for developing new treatments for diseases and improving overall health. For instance, many drugs are designed to act as biologically active agents that target specific pathways in the body to alleviate symptoms or cure illnesses. One of the most common examples of a biologically active agent is a hormone. Hormones are chemical messengers produced by glands in the endocrine system, and they regulate numerous physiological functions, including metabolism, growth, and mood. For example, insulin is a biologically active agent that helps control blood sugar levels. When we eat, our pancreas releases insulin, which allows cells to absorb glucose for energy. In individuals with diabetes, this process is disrupted, highlighting the importance of understanding how biologically active agents function in the body.Another significant category of biologically active agents includes antibiotics. These substances are used to combat bacterial infections and work by targeting specific components of bacterial cells. For example, penicillin, one of the first discovered antibiotics, inhibits the synthesis of bacterial cell walls, ultimately leading to cell death. The discovery and use of antibiotics have transformed medicine, allowing us to treat infections that were once considered fatal. However, the rise of antibiotic resistance has become a pressing concern, emphasizing the need for ongoing research into new biologically active agents that can effectively fight resistant strains of bacteria.In addition to hormones and antibiotics, biologically active agents also include various phytochemicals found in plants. Many fruits and vegetables contain compounds that can have beneficial effects on health. For instance, flavonoids, a group of plant metabolites, are known for their antioxidant properties and their ability to enhance cardiovascular health. Research has shown that a diet rich in fruits and vegetables, which are abundant in biologically active agents, can reduce the risk of chronic diseases such as heart disease and cancer.The study of biologically active agents extends beyond traditional medicine; it also encompasses the field of pharmacognosy, which involves the study of medicinal drugs derived from plants and other natural sources. Researchers in this field explore how these natural biologically active agents can be used to develop new pharmaceuticals. For example, the anti-cancer drug paclitaxel, derived from the bark of the Pacific yew tree, illustrates how nature can provide powerful biologically active agents that can be harnessed for therapeutic purposes.In conclusion, biologically active agents are integral to our understanding of biology and medicine. They encompass a wide range of substances that exert effects on living organisms, from hormones and antibiotics to phytochemicals. As research continues to uncover the complexities of these agents, we can look forward to new advancements in treatment strategies and a deeper understanding of health and disease. By recognizing the significance of biologically active agents, we can appreciate the intricate connections between our bodies and the substances that influence our well-being.

在生物学和医学领域，术语生物活性物质指的是对生物体产生影响的任何物质。这些物质可以是天然的或合成的，在各种生物过程中发挥着至关重要的作用。理解这些物质运作机制对于开发新疗法和改善整体健康至关重要。例如，许多药物被设计为作为生物活性物质，针对体内特定的通路以减轻症状或治愈疾病。一个最常见的生物活性物质例子是激素。激素是由内分泌系统中的腺体产生的化学信使，调节着许多生理功能，包括代谢、成长和情绪。例如，胰岛素是一种生物活性物质，帮助控制血糖水平。当我们进食时，胰腺释放胰岛素，使细胞能够吸收葡萄糖供能。在糖尿病患者中，这一过程受到干扰，突显了理解生物活性物质在体内如何运作的重要性。另一类重要的生物活性物质包括抗生素。这些物质用于对抗细菌感染，并通过针对细菌细胞的特定组成部分来发挥作用。例如，青霉素是第一种发现的抗生素之一，它抑制细菌细胞壁的合成，最终导致细胞死亡。抗生素的发现和使用改变了医学，让我们能够治疗曾被认为致命的感染。然而，抗生素耐药性的上升已成为一个紧迫的问题，强调了对新的生物活性物质进行持续研究的必要性，以有效对抗耐药菌株。除了激素和抗生素，生物活性物质还包括植物中发现的各种植物化学物质。许多水果和蔬菜含有可以对健康产生有益影响的化合物。例如，黄酮类化合物是一组植物代谢物，以其抗氧化特性和增强心血管健康的能力而闻名。研究表明，富含水果和蔬菜的饮食，其中富含生物活性物质，可以降低患心脏病和癌症等慢性疾病的风险。对生物活性物质的研究不仅限于传统医学；它还包括药用植物学领域，涉及从植物和其他自然来源提取的药物的研究。该领域的研究人员探索这些天然生物活性物质如何被用于开发新药物。例如，抗癌药物紫杉醇源自太平洋紫杉树的树皮，说明了自然界如何提供强大的生物活性物质，可用于治疗目的。总之，生物活性物质对我们理解生物学和医学至关重要。它们涵盖了一系列对生物体产生影响的物质，从激素和抗生素到植物化学物质。随着研究不断揭示这些物质的复杂性，我们可以期待治疗策略的新进展以及对健康和疾病的更深入理解。通过认识到生物活性物质的重要性，我们可以欣赏到我们身体与影响我们健康的物质之间的微妙联系。