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相关概念视频

The Nucleolus02:55

The Nucleolus

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The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
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The Nucleolus02:55

The Nucleolus

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Additional Subnuclear Structures02:10

Additional Subnuclear Structures

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The eukaryotic nucleus is a double membrane-bound organelle that contains nearly all of the cell’s genetic material in the form of chromosomes. It is rightly called the “brain” of the cell as it shoulders the responsibility of responding to various physiological processes, stress, altered metabolic conditions, and other cellular signals. 
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
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The Nucleus01:32

The Nucleus

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The nucleus is a membrane-bound organelle that acts as a control center in a eukaryotic cell. It contains chromosomal DNA, which controls gene expression and precisely regulates the production of proteins within the cell. In contrast, the DNA inside the mitochondria and chloroplast only carries out functions that are specific to those organelles.
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
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The Nucleus01:25

The Nucleus

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The nucleus is a membrane-bound organelle that acts as a control center in a eukaryotic cell. It contains chromosomal DNA, which controls gene expression and precisely regulates the production of proteins within the cell. In contrast, the DNA inside the mitochondria and chloroplast only carries out functions that are specific to those organelles.
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
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Nucleoid01:24

Nucleoid

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The nucleoid represents a structurally and functionally distinct region within prokaryotic cells, where the cell's DNA and associated proteins are housed. Unlike eukaryotic cells, prokaryotes lack a membrane-bound nucleus, and the nucleoid facilitates the organization and accessibility of the genetic material within this constraint. The DNA in most bacteria and archaea exists as a single, circular, double-stranded molecule that is highly compacted through supercoiling and interactions with...
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Assay to Measure Nucleocytoplasmic Transport in Real Time within Motor Neuron-like NSC-34 Cells
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细胞核及其相关的病理.

Marvin J Menjivar-Vallecillo1,2, Nadia V Padilla-Claros1,2, Pilar Gavarrete-Garrido1,2

  • 1GIMUNICAH, Faculty of Medicine, Pontificia Universidad Católica de Honduras, San Pedro Sula, Honduras.

WIREs mechanisms of disease
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概括
此摘要是机器生成的。

核素对核糖体产生至关重要,也影响细胞压力和癌症和自身免疫性疾病等疾病. 功能失调的核细胞破坏细胞平衡,免疫力和蛋白质合成,导致各种病理.

关键词:
细胞核中的细胞核.疾病 疾病 疾病 疾病微RNAs 是一个微型RNA.核的核是一种核.核糖体是核糖体中的一个.

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科学领域:

  • 细胞生物学 细胞生物学
  • 分子生理学分子生理学
  • 病理学 病理学 病理学

背景情况:

  • 核素传统上被认为是核糖体生物发生的原因.
  • 新出现的证据强调了它在细胞应激适应和疾病发病过程中的作用.
  • 核细胞功能障碍与各种疾病有关,包括癌症,自身免疫疾病和衰老.

研究的目的:

  • 审查和分类与核细胞相关的疾病.
  • 阐明核细胞在健康和疾病中的多方面的作用.
  • 强调核细胞功能在细胞平衡和人类病理中的重要性.

主要方法:

  • 文献综述和综合有关核细胞功能和疾病的当前研究.
  • 将核素相关疾病分为不同的类别.
  • 对将核细胞变化与病理过程联系起来的分子机制的分析.

主要成果:

  • 核细胞功能障碍会影响蛋白质合成,细胞平衡和免疫反应.
  • 与核细胞相关的疾病被分为七组,包括蛋白质合成缺陷,核糖体变异,癌症,衰老/压力相关疾病,自身免疫疾病和病毒性疾病.
  • 干扰可以导致多系统性疾病和增加癌症易感性.

结论:

  • 核素在核糖体生物发生之外发挥着关键作用,影响细胞适应和疾病.
  • 了解核的复杂性对于破译人类疾病的分子基础至关重要.
  • 对核细胞功能障碍的进一步研究将促进细胞生物学和疾病病理学知识的发展.