radical scavenger

简明释义

游离基清除剂

英英释义

例句

1.Research shows that certain antioxidants function as radical scavengers to reduce inflammation.

研究表明，某些抗氧化剂可以作为自由基清除剂来减少炎症。

2.The body's defense system includes enzymes that serve as radical scavengers.

身体的防御系统包括作为自由基清除剂的酶。

3.In skincare products, radical scavengers are often included to protect the skin from oxidative stress.

在护肤产品中，通常会加入自由基清除剂以保护皮肤免受氧化压力。

4.Vitamin C acts as a radical scavenger, helping to neutralize harmful free radicals in the body.

维生素C作为一种自由基清除剂，有助于中和体内有害的自由基。

5.Foods rich in polyphenols are known to act as effective radical scavengers.

富含多酚的食物被认为是有效的自由基清除剂。

作文

In the field of biochemistry, the term radical scavenger refers to a molecule that can neutralize free radicals, which are highly reactive species that can cause damage to cells and tissues. Free radicals are often generated as by-products of metabolic processes, environmental factors, or even exposure to radiation. Because they have unpaired electrons, free radicals seek to stabilize themselves by stealing electrons from other molecules, leading to a chain reaction of cellular damage. This is where radical scavengers come into play. They act as protective agents, donating electrons to free radicals without becoming destabilized themselves. This process helps to mitigate oxidative stress, which is implicated in various diseases, including cancer, cardiovascular diseases, and neurodegenerative disorders.One of the most well-known radical scavengers is vitamin C, also known as ascorbic acid. It is a potent antioxidant that can effectively neutralize a range of free radicals. By donating an electron, vitamin C transforms harmful radicals into more stable, less reactive species. Additionally, it regenerates other antioxidants, such as vitamin E, enhancing their ability to combat oxidative damage. This synergistic action underscores the importance of a balanced diet rich in antioxidants to support overall health.Another example of a radical scavenger is glutathione, a tripeptide composed of three amino acids: cysteine, glutamine, and glycine. Glutathione is found in every cell of the body and plays a crucial role in detoxification and immune function. It not only neutralizes free radicals but also helps to recycle other antioxidants, maintaining a delicate balance within the body's oxidative environment.The significance of radical scavengers extends beyond individual health; they are also pivotal in various industrial applications. For instance, in food preservation, antioxidants are added to prevent rancidity and extend shelf life. Similarly, in cosmetics, radical scavengers are used to protect skin from oxidative damage caused by UV radiation and pollution, promoting healthier skin aging.Research continues to explore the potential of synthetic radical scavengers in therapeutic settings. Scientists are investigating compounds that can mimic the actions of natural antioxidants, looking for ways to enhance their efficacy and bioavailability. These developments could lead to innovative treatments for diseases characterized by oxidative stress.In conclusion, understanding the role of radical scavengers is essential for appreciating how our bodies defend themselves against oxidative damage. By incorporating foods rich in antioxidants into our diets, we can bolster our natural defenses and promote better health. Furthermore, ongoing research into both natural and synthetic radical scavengers holds promise for future medical advancements, potentially offering new strategies to combat diseases linked to oxidative stress. As we continue to learn more about these protective molecules, it becomes clear that they are vital not only for individual health but also for the advancement of science and medicine.

在生物化学领域，术语自由基清除剂指的是能够中和自由基的分子，自由基是一种高度反应性的物质，可能对细胞和组织造成损害。自由基通常作为代谢过程、环境因素或甚至辐射暴露的副产品生成。由于它们具有未配对的电子，自由基试图通过从其他分子中窃取电子来稳定自己，从而导致细胞损伤的连锁反应。这就是自由基清除剂发挥作用的地方。它们充当保护剂，向自由基捐赠电子，而自身不会变得不稳定。这个过程有助于减轻氧化压力，而氧化压力与多种疾病有关，包括癌症、心血管疾病和神经退行性疾病。最著名的自由基清除剂之一是维生素C，也称为抗坏血酸。它是一种强效的抗氧化剂，可以有效中和多种自由基。通过捐赠一个电子，维生素C将有害的自由基转化为更稳定、反应性较低的物质。此外，它还能再生其他抗氧化剂，如维生素E，增强它们对抗氧化损伤的能力。这种协同作用强调了均衡饮食的重要性，富含抗氧化剂以支持整体健康。另一个自由基清除剂的例子是谷胱甘肽，这是一种由三种氨基酸（半胱氨酸、谷氨酰胺和甘氨酸）组成的三肽。谷胱甘肽存在于体内的每个细胞中，在解毒和免疫功能中发挥着至关重要的作用。它不仅中和自由基，还帮助回收其他抗氧化剂，维持身体氧化环境中的微妙平衡。自由基清除剂的重要性超越了个人健康；它们在各种工业应用中也至关重要。例如，在食品保存中，抗氧化剂被添加以防止油脂变 rancid 并延长保质期。同样，在化妆品中，自由基清除剂用于保护皮肤免受紫外线辐射和污染引起的氧化损伤，促进更健康的皮肤老化。研究持续探索合成自由基清除剂在治疗环境中的潜力。科学家们正在研究能够模拟天然抗氧化剂作用的化合物，寻找增强其疗效和生物利用度的方法。这些发展可能导致针对特定氧化压力相关疾病的新治疗方案。总之，理解自由基清除剂的作用对于欣赏我们身体如何抵御氧化损伤至关重要。通过将富含抗氧化剂的食物纳入我们的饮食，我们可以增强自然防御能力，促进更好的健康。此外，对天然和合成自由基清除剂的持续研究为未来医学进步提供了希望，可能提供新的策略来对抗与氧化压力相关的疾病。随着我们对这些保护分子的了解不断加深，显然它们不仅对个人健康至关重要，而且对科学和医学的发展也至关重要。