heme

简明释义

英[hiːm]美[hiːm]

n. 亚铁血红素

英英释义

单词用法

同义词

反义词

例句

1.ObjectiveTo investigate the expression and significance of heme oxygenase-1 (HO-1) in a cute cardiac allograft rejection in mice.

目的探讨血红素加氧酶1 (HO 1)在心脏移植急性排斥反应中的表达及意义。

2.The result in Listing 10 shows that iron occurs frequently together with heme compounds.

清单10中的结果显示了铁经常与亚铁血红素化合物共同出现。

3.Objective To investigate the changes of heme oxygenase-1 (HO-1) in old patients with acute myocardial infarction (AMI).

目的观察血红素氧化酶- 1 (HO - 1)在老年急性心肌梗死(ami)患者中的表达。

4.The heme of the hemoglobin in blood cells gives them their characteristic red hue.

例如血球细胞中的血红素，其独特的红色便是由血色素所造成。

5.Interference with the normal production of heme or globin leads to anemia.

血红素或球蛋白的正常产生收到干扰会导致贫血。

6.After phagocytosis and subsequent disruption of the cell membrane, Hgb is converted to heme and globin.

巨噬细胞吞噬红细胞后破坏细胞膜，血红蛋白被转化为血红素和球蛋白。

7.Heme, a complex heterocyclic compound, is an organic molecule derived from porphyrin with an iron atom at the centre.

血红素(一种复杂的杂环化合物)是来自中心含铁原子的的一种有机分子。

8.Objective: To explore the inhibition mechanism of heme oxygenase-1 (HO-1) on the progress of atherosclerosis in rats.

目的：探讨血红素氧合酶- 1 (HO - 1)抑制动脉粥样硬化进程的机制。

9.Erythroid-specific 5-aminolevulinate synthase (ALAS2) catalyzes the rate-limiting step in heme biosynthesis.

红系特异的5-氨基酮戊酸合成酶（ALAS2）是血红素生物合成的限速酶。

10.In the process of photosynthesis, plants produce chlorophyll, which is similar to heme 血红素 but contains magnesium instead of iron.

在光合作用过程中，植物产生叶绿素，它与heme 血红素 相似，但含有镁而不是铁。

11.Anemia can occur if there is insufficient heme 血红素 production in the body.

如果体内缺乏heme 血红素 的生产，可能会导致贫血。

12.The heme 血红素 in red meat is easily absorbed by the body compared to non-heme iron found in plant foods.

红肉中的heme 血红素 比植物食品中的非血红素铁更容易被身体吸收。

13.Researchers are studying how heme 血红素 oxygenase affects cellular function.

研究人员正在研究heme 血红素 氧化酶如何影响细胞功能。

14.The protein hemoglobin contains four subunits, each with a heme 血红素 group that binds oxygen.

蛋白质血红蛋白包含四个亚单位，每个亚单位都有一个heme 血红素 基团，可以结合氧气。

作文

The role of heme (血红素) in biological systems is both fascinating and essential. Heme is an iron-containing compound that plays a critical role in various physiological processes, particularly in the transport of oxygen in the blood. It is a vital component of hemoglobin, the protein in red blood cells that binds oxygen and carries it from the lungs to the tissues throughout the body. Without heme, our bodies would struggle to obtain the oxygen needed for cellular respiration, which is crucial for producing energy. In addition to its role in hemoglobin, heme (血红素) is also a key player in myoglobin, a protein found in muscle tissue that stores oxygen for use during intense physical activity. This allows muscles to have a readily available supply of oxygen, enhancing performance during exercise. The presence of heme in these proteins highlights its importance in both respiratory and muscular functions. Moreover, heme (血红素) is involved in various enzymatic reactions as a cofactor. For instance, cytochromes, which are proteins that facilitate electron transfer in cellular respiration, contain heme. These reactions are fundamental to the production of ATP, the energy currency of cells. Thus, the significance of heme extends beyond oxygen transport; it is integral to energy metabolism as well. The synthesis of heme (血红素) occurs in the mitochondria and cytoplasm of cells, and it requires a series of enzymatic steps. Deficiencies or abnormalities in heme production can lead to various health issues, including anemia and certain genetic disorders such as porphyria. These conditions underscore the necessity of heme in maintaining overall health and metabolic balance. Dietary sources of heme (血红素) include animal products such as meat, fish, and poultry, which contain heme in a form that is easily absorbed by the body. In contrast, plant-based sources provide non-heme iron, which is less efficiently utilized. Therefore, individuals who follow vegetarian or vegan diets must be mindful of their iron intake to ensure they receive adequate amounts for heme synthesis. In conclusion, heme (血红素) is more than just a pigment; it is a crucial molecule that supports life by facilitating oxygen transport, energy production, and various biochemical reactions. Understanding the multifaceted roles of heme can help us appreciate its importance in our diet and overall health. As research continues to uncover the complexities of heme biology, it will undoubtedly lead to new insights into how we can optimize our health through nutrition and lifestyle choices.

血红素在生物系统中的作用既迷人又至关重要。血红素是一种含铁化合物，在多种生理过程中发挥着关键作用，特别是在血液中运输氧气方面。它是血红蛋白的重要组成部分，血红蛋白是红细胞中的一种蛋白质，能够结合氧气并将其从肺部输送到全身的组织。如果没有血红素，我们的身体将难以获得细胞呼吸所需的氧气，而细胞呼吸对能量的产生至关重要。 除了在血红蛋白中的作用外，血红素还是肌肉组织中一种叫做肌红蛋白的蛋白质的关键成分，肌红蛋白储存氧气以供在剧烈运动期间使用。这使得肌肉能够随时获得氧气，提高运动表现。血红素在这些蛋白质中的存在突显了它在呼吸和肌肉功能中的重要性。 此外，血红素还作为辅因子参与多种酶促反应。例如，细胞色素是促进细胞呼吸中电子转移的蛋白质，含有血红素。这些反应对ATP的产生至关重要，ATP是细胞的能量货币。因此，血红素的重要性不仅仅体现在氧气运输上，它也是能量代谢的核心。 血红素的合成发生在细胞的线粒体和细胞质中，需要一系列酶促步骤。血红素生产中的缺陷或异常可能导致各种健康问题，包括贫血和某些遗传疾病，如卟啉病。这些情况强调了血红素在维持整体健康和代谢平衡中的必要性。 饮食来源中的血红素包括肉类、鱼类和家禽等动物产品，这些食品中的血红素以易于被身体吸收的形式存在。相比之下，植物来源提供的是非血红素铁，其利用效率较低。因此，遵循素食或严格素食饮食的人必须注意铁的摄入，以确保他们获得足够的血红素合成所需的铁。 总之，血红素不仅仅是一种色素；它是一种至关重要的分子，通过促进氧气运输、能量生产和各种生化反应来支持生命。理解血红素的多面角色可以帮助我们欣赏它在饮食和整体健康中的重要性。随着研究不断揭示血红素生物学的复杂性，毫无疑问，这将为我们如何通过营养和生活方式选择优化健康提供新的见解。