eumelanin

简明释义

英[juːˈmɛlənɪn]美[juˈmɛlənˌɪn]

n. 真黑素；[昆] 真黑色素

英英释义

单词用法

同义词

反义词

例句

1.The subtype pheomelanin is responsible for red hair, while the subtype eumelanin is responsible for grey, black, yellow, and brown hair.

黑素子类别中的褐黑素的多少会决定头发红色的程度，而另一类真黑素则会决定头发灰、黑、黄和棕色的程度。

2.By using the technology of IR spectrum, the result showed that the basic structure of melanin of Black Bone Sheep is similar to silky fowl, and the mainly composition is eumelanin.

IR光谱研究结果表明，乌骨绵羊黑色素的基本结构与乌骨鸡基本一致，主要是真黑色素。

3.The eumelanin has been bleached by the sun, and the red color is showing through, however slightly.

这是因为在阳光下，真黑素被淡化，而红色则现显出来，虽然十分微弱。

4.By using the technology of IR spectrum, the result showed that the basic structure of melanin of Black Bone Sheep is similar to silky fowl, and the mainly composition is eumelanin.

IR光谱研究结果表明，乌骨绵羊黑色素的基本结构与乌骨鸡基本一致，主要是真黑色素。

5.Individuals with lower levels of a melanin pigment called eumelanin are likely to have blonde hair.1.

黑色素水平较低的个体(eumelanin)很可能拥有金发。

6.People with higher levels of eumelanin in their skin tend to have a lower risk of skin cancer.

皮肤中含有较高水平的黑色素的人通常有较低的皮肤癌风险。

7.In animals, eumelanin contributes to the coloration of feathers and fur.

在动物中，黑色素有助于羽毛和毛发的着色。

8.The amount of eumelanin determines whether someone has black or brown hair.

一个人拥有黑色或棕色头发的程度由黑色素的数量决定。

9.Researchers are studying how eumelanin can protect against UV radiation.

研究人员正在研究黑色素如何保护皮肤免受紫外线辐射。

10.The hair color of the model is primarily due to the presence of eumelanin, which is responsible for dark shades.

模特的发色主要是由于黑色素的存在，这种物质负责深色调。

作文

Eumelanin is a type of melanin that plays a crucial role in determining the color of our skin, hair, and eyes. It is one of the two primary forms of melanin, the other being pheomelanin. While pheomelanin gives a reddish or yellowish hue, eumelanin (黑色素) is responsible for darker shades, ranging from brown to black. This pigment is not only significant in aesthetic terms but also serves important biological functions. For instance, eumelanin has protective properties against ultraviolet (UV) radiation, which can cause skin damage and increase the risk of skin cancer. Individuals with higher concentrations of eumelanin tend to have darker skin, which provides better protection against the harmful effects of the sun's rays.The production of eumelanin occurs in specialized cells called melanocytes, which are primarily found in the skin, hair follicles, and the inner ear. When exposed to sunlight, these cells increase the production of eumelanin as a natural defense mechanism. This process is known as tanning, where the skin darkens due to increased levels of eumelanin. However, it is essential to note that while tanning can provide some level of protection, excessive UV exposure can still lead to skin damage and other health issues.Research has shown that the amount and type of eumelanin produced by an individual is largely determined by genetics. People with darker skin tones typically produce more eumelanin than those with lighter skin tones. This genetic variation is fascinating as it highlights the adaptive nature of human beings to different environmental conditions. In regions with high UV exposure, individuals with more eumelanin have a survival advantage, as their skin is better equipped to handle the sun's intensity.In addition to its protective role, eumelanin also has implications in various fields such as dermatology and cosmetic science. Understanding how eumelanin functions can aid in developing treatments for skin disorders and conditions related to pigmentation. For example, conditions like vitiligo, where there is a loss of pigment, can be better understood through the study of eumelanin and its production mechanisms.Moreover, the cosmetic industry often utilizes eumelanin in products designed to enhance or alter skin and hair color. Many hair dyes contain synthetic versions of eumelanin to achieve darker shades. This application underscores the importance of eumelanin not only in natural biology but also in human culture and aesthetics.In conclusion, eumelanin is more than just a pigment; it is a vital component of our biology that influences our appearance and protects us from environmental hazards. By understanding eumelanin (黑色素), we gain insight into the complexities of human adaptation and the ongoing interplay between our biology and the environment. As research continues to evolve, the significance of eumelanin in health and beauty will undoubtedly become even more pronounced, highlighting the need for further exploration in this fascinating area of study.

黑色素是一种在决定我们皮肤、头发和眼睛颜色方面发挥重要作用的黑色素。它是两种主要类型的黑色素之一，另一种是红黄色素。虽然红黄色素赋予红色或黄色的色调，但黑色素（eumelanin）负责较深的色调，从棕色到黑色不等。这种色素不仅在美学上具有重要意义，而且还具有重要的生物功能。例如，黑色素（eumelanin）对抗紫外线（UV）辐射具有保护作用，紫外线辐射可能导致皮肤损伤并增加皮肤癌的风险。具有较高浓度黑色素的人通常皮肤较深，这提供了更好的保护，抵御阳光的有害影响。黑色素（eumelanin）的产生发生在称为黑色素细胞的特殊细胞中，这些细胞主要存在于皮肤、毛囊和内耳。当暴露在阳光下时，这些细胞会增加黑色素（eumelanin）的生产，作为一种自然防御机制。这个过程被称为晒黑，皮肤因黑色素（eumelanin）水平增加而变得更暗。然而，值得注意的是，尽管晒黑可以提供一定程度的保护，但过度的紫外线暴露仍然会导致皮肤损伤和其他健康问题。研究表明，个体产生的黑色素（eumelanin）的数量和类型主要由遗传决定。皮肤较深的人通常比皮肤较浅的人产生更多的黑色素（eumelanin）。这种遗传变异令人着迷，因为它突显了人类对不同环境条件的适应性。在紫外线辐射强烈的地区，黑色素（eumelanin）含量较高的人具有生存优势，因为他们的皮肤更能承受阳光的强度。除了保护作用外，黑色素（eumelanin）在皮肤科和化妆品科学等多个领域也有重要意义。了解黑色素（eumelanin）的功能可以帮助开发针对皮肤病和与色素有关的疾病的治疗方法。例如，白癜风等病症会导致色素丧失，通过研究黑色素（eumelanin）及其产生机制，可以更好地理解这些病症。此外，化妆品行业常常利用黑色素（eumelanin）来增强或改变皮肤和头发的颜色。许多染发剂中含有合成的黑色素（eumelanin），以实现更深的色调。这一应用强调了黑色素（eumelanin）在自然生物学和人类文化美学中的重要性。总之，黑色素（eumelanin）不仅仅是一种色素；它是我们生物学的重要组成部分，影响我们的外观并保护我们免受环境危害。通过了解黑色素（eumelanin）（黑色素），我们能够洞察人类适应的复杂性以及我们的生物学与环境之间的持续相互作用。随着研究的不断发展，黑色素（eumelanin）在健康和美容方面的重要性无疑将更加突出，强调了在这一迷人研究领域进一步探索的必要性。