eicosanoids

简明释义

英[aɪˈkəʊsəˌnɔɪdz]美[aɪˈkoʊsəˌnɔɪdz]

n. 类花生酸；二十烷类（eicosanoid 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Current studies indicate that the anticarcinogenic functions of CLA can be attributed to the ability to inhibit the synthesis of eicosanoids derived from arachidonic acid.

研究表明，共轭亚油酸的抗癌作用可归结为抑制衍生自花生四烯酸的类二十烷合成的能力。

2.Current studies indicate that the anticarcinogenic functions of CLA can be attributed to the ability to inhibit the synthesis of eicosanoids derived from arachidonic acid.

研究表明，共轭亚油酸的抗癌作用可归结为抑制衍生自花生四烯酸的类二十烷合成的能力。

3.Eicosanoids drive inflammatory disorders such as asthma and multiple sclerosis.

类花生酸类物质将导致炎性疾病，例如哮喘和多发性硬化。

4.The body produces various types of eicosanoids to regulate inflammation.

身体产生多种类型的二十碳烯酸类物质来调节炎症。

5.Certain foods can influence the production of eicosanoids that affect heart health.

某些食物可以影响影响心脏健康的二十碳烯酸类物质的产生。

6.Research has shown that eicosanoids play a crucial role in the immune response.

研究表明，二十碳烯酸类物质在免疫反应中发挥着关键作用。

7.Anti-inflammatory medications often target the pathways of eicosanoids.

抗炎药物通常针对二十碳烯酸类物质的途径。

8.The balance of different types of eicosanoids can impact overall health.

不同类型的二十碳烯酸类物质的平衡可以影响整体健康。

作文

Eicosanoids are biologically active lipids that play crucial roles in various physiological processes. Derived from arachidonic acid, a polyunsaturated fatty acid, these compounds are involved in inflammation, immunity, and cell signaling. The term 'eicosanoid' comes from the Greek word 'eicosa,' meaning twenty, which refers to the twenty carbon atoms in their structure. Eicosanoids can be categorized into several classes, including prostaglandins, thromboxanes, and leukotrienes, each with distinct functions in the body. Prostaglandins, for instance, are known for their role in mediating inflammatory responses and regulating blood flow. They can cause vasodilation or vasoconstriction, affecting blood pressure and the delivery of oxygen and nutrients to tissues. Additionally, prostaglandins are involved in the pain response; they sensitize nerve endings, leading to increased pain perception during inflammation. Thromboxanes, on the other hand, are primarily associated with blood clotting. Produced by platelets, they promote vasoconstriction and platelet aggregation, which are essential processes in stopping bleeding. In contrast, leukotrienes are involved in allergic reactions and asthma. They contribute to bronchoconstriction, increasing mucus production and attracting immune cells to sites of inflammation. The balance between different types of eicosanoids is vital for maintaining health. An excess of pro-inflammatory eicosanoids can lead to chronic inflammatory diseases such as arthritis, cardiovascular diseases, and even cancer. Conversely, insufficient levels of certain eicosanoids can impair immune responses, making the body more susceptible to infections. Diet plays a significant role in the synthesis of eicosanoids. Omega-3 and omega-6 fatty acids, found in fish oils and certain plant oils, respectively, are precursors to different types of eicosanoids. Omega-6 fatty acids generally give rise to pro-inflammatory eicosanoids, while omega-3 fatty acids tend to produce anti-inflammatory ones. Therefore, a diet rich in omega-3s can help balance the effects of omega-6s, promoting overall health and reducing the risk of chronic diseases. In conclusion, eicosanoids are essential lipid mediators that regulate numerous biological functions. Understanding their roles and the impact of dietary choices on their production can provide valuable insights into managing health and preventing disease. As research continues to uncover the complexities of these molecules, it becomes increasingly clear that maintaining a proper balance of eicosanoids is fundamental to our well-being. By making informed dietary decisions, we can influence our body's inflammatory responses and support our overall health.

二十碳烯类是生物活性脂质，在各种生理过程中发挥着至关重要的作用。它们源自花生四烯酸，这是一种多不饱和脂肪酸，这些化合物参与了炎症、免疫和细胞信号传导。‘eicosanoid’这个词来源于希腊语‘eicosa’，意为二十，指的是它们结构中的二十个碳原子。二十碳烯类可以分为几类，包括前列腺素、血栓烷和白三烯，每种在体内都有不同的功能。 例如，前列腺素以其在介导炎症反应和调节血流中的作用而闻名。它们可以引起血管扩张或收缩，影响血压以及氧气和营养物质向组织的输送。此外，前列腺素还参与疼痛反应；它们使神经末梢敏感，导致在炎症期间对疼痛的感知增加。 另一方面，血栓烷主要与血液凝固相关。由血小板产生，它们促进血管收缩和血小板聚集，这些都是止血的关键过程。相比之下，白三烯则参与过敏反应和哮喘。它们促使支气管收缩，增加粘液产生，并吸引免疫细胞到达炎症部位。 不同类型的eicosanoids之间的平衡对于维持健康至关重要。过量的促炎性二十碳烯类可能导致慢性炎症性疾病，如关节炎、心血管疾病甚至癌症。相反，某些二十碳烯类不足可能会损害免疫反应，使身体更容易受到感染。 饮食在二十碳烯类的合成中发挥着重要作用。Omega-3和omega-6脂肪酸，分别存在于鱼油和某些植物油中，是不同类型二十碳烯类的前体。Omega-6脂肪酸通常产生促炎性二十碳烯类，而Omega-3脂肪酸则倾向于产生抗炎性二十碳烯类。因此，富含Omega-3的饮食可以帮助平衡Omega-6的影响，促进整体健康并降低慢性疾病的风险。 总之，eicosanoids是调节众多生物功能的重要脂质介质。理解它们的作用以及饮食选择对它们产生的影响，可以为管理健康和预防疾病提供宝贵的见解。随着研究不断揭示这些分子的复杂性，越来越清楚的是，保持二十碳烯类的适当平衡对我们的福祉至关重要。通过做出明智的饮食决定，我们可以影响身体的炎症反应，支持我们的整体健康。