相关实验视频
Updated: Jun 13, 2025

10:06
Cell Type-specific Gene Expression Profiling in the Mouse Liver
Published on: September 17, 2019
7.6K
肝脏是否能够抵御衰老的过程?
Nirupama Chatterjee1, Rishabh Sharma2, Pratibha R Kale3
1Artemis Education and Research Foundation, Artemis Health Institute, Sector 51 Gurugram, India.
Annals of hepatology
|September 14, 2024
概括
肝脏保持年轻的特征,尽管通过诸如细胞缩和遗传适应等机制的时间老化. 然而,过早衰老可能会损害再生,导致慢性肝病.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 老年学是一门学科.
- 细胞生物学 细胞生物学
背景情况:
- 肝脏具有独特的再生和免疫耐受性,通常比其他器官更好地抵抗与年龄相关的病理.
- 与年龄相关的细微肝脏变化包括血液流量减少,排毒改变,伪毛细化和脂素沉积.
- 尽管有时间的衰老,肝细胞仍然非常年轻,平均只有3岁.
研究的目的:
- 探索适应机制,允许肝脏在生物体衰老期间保持其年轻特征.
- 在面对时间老龄化的情况下,审查维持肝脏平衡的细胞适应.
- 简要地研究肝细胞加速衰老是如何导致慢性肝病的.
主要方法:
- 关于肝脏衰老,再生和细胞适应研究的文献综述.
- 分析诸如细胞缩,球性,端粒长度,细胞外矩阵重塑和代谢适应等机制.
- 检查肝细胞衰老在肝脏疾病中的作用.
主要成果:
- 肝脏使用的机制包括细胞缩,形输送器,持续的端粒长度,细胞外矩阵重塑和代谢适应 (线粒体-内分泌网膜) 来维持功能.
- 这些适应性有助于肝脏稳态和细胞可塑性,促进健康的衰老.
- 相反,过早的肝细胞衰老可能会损害再生能力,并与慢性肝病有关.
结论:
- 肝脏通过各种细胞和遗传适应策略对衰老表现出了显著的弹性.
- 了解这些机制是理解肝脏健康的关键,并减轻与年龄相关的衰退.
- 加快的肝细胞衰老是慢性肝病的发病的一个关键因素.
相关概念视频
Liver Regeneration
3.2K
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
3.2K
Liver Physiology
454
The liver, an essential organ in the human body, performs over 200 vital functions that can be broadly categorized into metabolic, hematological, endocrine regulation, and bile production.
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
454
Tissue Renewal without Stem Cells
1.7K
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
1.7K
Cell Specific Gene Expression
13.5K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.5K
Liver Histology
637
The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
Hepatocytes perform a variety of essential functions. They secrete...
Hepatocytes perform a variety of essential functions. They secrete...
637

