melanocyte

简明释义

英[ˈmelənəʊˌsaɪt]美[məˈlænəˌsaɪt]

n. 黑素细胞

英英释义

单词用法

同义词

反义词

例句

1.Expression of NOS was assayed with immunohistochemical method and melanocyte was identified under high-times optic microscope to observe stain and characteristic of cytoplasm.

免疫组织化学方法法显示一氧化氮合酶的表达，用光学显微镜在高倍镜下观察，识别黑素细胞，观察细胞胞质的染色及特点。

2.Pituitary tumors may also cause generalized hyperpigmentation as a result of increased secretion of melanocyte-stimulating hormone (MSH).

脑垂体肿瘤，由于促黑激素(MSH)分泌增多，也可引起全身性的色素沉着。

3.The rapid proliferation and increased dendrites of melanocytes in 254 media supplemented with human melanocyte growth supplement (HMGS) were observed.

采用添加人黑素细胞生长成分(HMGS)的254培养基，细胞增殖快，黑素细胞树突数目和分级增多。

4.A dark-pigmented, usually malignant tumor arising from a melanocyte and occurring most commonly in the skin.

黑瘤，黑素瘤含有黑色素的，通常为恶性的肿瘤，由黑素细胞引起且最常见于皮肤中。

5.Conclusion as a specific antigen in mixed melanocyte lymphocyte reaction, melanocyte has a weak effect on the lymphocytes.

结论正常人黑素细胞的促淋巴细胞转化增殖的特异性抗原作用较弱。

6.Conclusion ET-1 is more effective in enhancing melanocyte adhesion and migration than SCF.

结论ET1可以促进黑素细胞的黏附和迁移，其效果优于scf。

7.DNA damage was detected in all melanocyte cells and these cells were unable to repair the damage.

结果发现在所有黑色素细胞中均可检出DNA损伤，而且这些细胞不能够对损伤进行修复。

8.The primary function of a melanocyte is to produce melanin, which gives color to the skin.

一个黑色素细胞的主要功能是产生黑色素，赋予皮肤颜色。

9.Certain skin disorders can affect the number and function of melanocytes.

某些皮肤疾病可以影响黑色素细胞的数量和功能。

10.Exposure to UV light stimulates melanocyte activity, leading to tanning.

暴露在紫外线下会刺激黑色素细胞的活动，导致晒黑。

11.A decrease in melanocyte function can lead to conditions like vitiligo.

黑色素细胞功能的减少可能导致白癜风等疾病。

12.In humans, melanocytes are found in the epidermis, the outermost layer of skin.

在人类中，黑色素细胞位于表皮，即皮肤的最外层。

作文

The human body is a complex and fascinating organism, composed of various types of cells that each play a crucial role in maintaining health and functionality. One such cell type is the melanocyte, which is responsible for producing melanin, the pigment that gives color to our skin, hair, and eyes. Understanding the function and importance of melanocyte cells can provide insight into not only our physical appearance but also our overall health and well-being.黑色素细胞 are primarily located in the epidermis, the outermost layer of the skin. They originate from neural crest cells during embryonic development and migrate to the skin where they settle down. The primary function of melanocyte is to synthesize melanin through a process called melanogenesis. This process is stimulated by exposure to ultraviolet (UV) radiation from the sun, which can lead to tanning as the body’s natural defense mechanism against UV damage. The more melanin produced by the melanocyte, the darker the skin becomes, which helps protect deeper layers of skin from harmful UV rays.In addition to providing pigmentation, melanocyte cells also play a role in protecting against skin cancer. By absorbing UV radiation, melanin acts as a natural sunscreen, reducing the risk of DNA damage that can lead to mutations and ultimately cancer. However, it is important to note that while melanin provides some protection, it does not eliminate the need for sunscreen, especially for individuals with lighter skin tones who have fewer melanocyte cells.The health of melanocyte cells can be influenced by various factors, including genetics, environmental exposures, and age. For example, certain genetic conditions, such as albinism, result in a deficiency or absence of melanin due to the lack of functional melanocyte cells. This can lead to an increased risk of skin damage and skin cancer due to the lack of protective pigmentation.Moreover, as individuals age, the number and activity of melanocyte cells can decrease, leading to graying hair and changes in skin pigmentation. This natural decline can also contribute to conditions such as vitiligo, where patches of skin lose their pigment due to the destruction of melanocyte cells. Understanding these changes can help individuals manage their skin health and seek appropriate treatments when necessary.Research into melanocyte cells has also led to advancements in cosmetic and medical treatments. For instance, scientists are exploring ways to manipulate melanocyte function to treat skin disorders or enhance pigmentation for cosmetic purposes. Additionally, understanding the biology of melanocyte cells may pave the way for new therapies in treating skin cancer or other related diseases.In conclusion, melanocyte cells are essential components of our skin, contributing not only to our appearance but also to our health. They serve as a protective barrier against UV radiation, help prevent skin cancer, and play a role in various skin conditions. By appreciating the significance of melanocyte cells, we can better understand the importance of sun protection and the need for ongoing research into skin health. As we continue to learn more about these remarkable cells, we can improve our approaches to skincare and overall health management, ensuring that we maintain healthy and vibrant skin throughout our lives.

人体是一个复杂而迷人的有机体，由多种类型的细胞组成，每种细胞在维持健康和功能方面都发挥着至关重要的作用。其中一种细胞类型是黑色素细胞，它负责产生黑色素，这种色素赋予我们的皮肤、头发和眼睛颜色。理解黑色素细胞的功能和重要性，可以深入了解我们不仅外貌的变化，也包括整体健康和福祉。黑色素细胞主要位于表皮，即皮肤的最外层。它们起源于胚胎发育期间的神经嵴细胞，并迁移到皮肤中，在那里定居。黑色素细胞的主要功能是通过称为黑色素生成的过程合成黑色素。这个过程受到阳光中紫外线（UV）辐射的刺激，可能导致皮肤变黑，这是身体对紫外线损伤的自然防御机制。黑色素细胞产生的黑色素越多，皮肤就越暗，这有助于保护皮肤的深层组织免受有害的紫外线辐射。除了提供色素外，黑色素细胞还在防止皮肤癌方面发挥作用。通过吸收紫外线辐射，黑色素充当天然防晒霜，降低DNA损伤的风险，而这种损伤可能导致突变，最终导致癌症。然而，值得注意的是，虽然黑色素提供了一定的保护，但它并不能消除防晒霜的需求，特别是对于那些拥有较少黑色素细胞的浅色皮肤个体。黑色素细胞的健康受到多种因素的影响，包括遗传、环境暴露和年龄。例如，某些遗传疾病，如白化病，因缺乏功能性黑色素细胞而导致黑色素缺乏或缺失。这可能导致由于缺乏保护性色素而增加的皮肤损伤和皮肤癌风险。此外，随着个体年龄的增长，黑色素细胞的数量和活性可能会减少，导致头发变灰和皮肤色素变化。这种自然衰退也可能导致白癜风等疾病的发生，其中皮肤的某些区域因黑色素细胞的破坏而失去色素。理解这些变化可以帮助个体管理皮肤健康，并在必要时寻求适当的治疗。对黑色素细胞的研究也推动了美容和医疗治疗的发展。例如，科学家们正在探索操纵黑色素细胞功能的方法，以治疗皮肤疾病或增强美容目的的色素。此外，理解黑色素细胞的生物学可能为治疗皮肤癌或其他相关疾病的新疗法铺平道路。总之，黑色素细胞是我们皮肤的重要组成部分，不仅对我们的外貌产生影响，还对我们的健康至关重要。它们作为紫外线辐射的保护屏障，帮助预防皮肤癌，并在各种皮肤疾病中发挥作用。通过欣赏黑色素细胞的重要性，我们可以更好地理解防晒的重要性以及对皮肤健康的持续研究的必要性。随着我们对这些非凡细胞的了解不断加深，我们可以改善护肤和整体健康管理的方法，确保我们在整个生命中保持健康和充满活力的皮肤。