细胞衰老与阿尔茨海默病之间的联系 - - 一篇叙述性评论
Julia Kuźniar1, Patrycja Kozubek1, Magdalena Czaja1
1Student Scientific Group of Psychiatry, Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland.
International journal of molecular sciences
|September 13, 2025
概括
细胞衰老,一个关键的衰老因素,有助于阿尔茨海默病的进展. 衰老细胞聚集在阿尔茨海默氏症的标志附近,通过炎症途径影响大脑功能.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 衰老研究研究 衰老研究
背景情况:
- 阿尔茨海默病 (AD) 是一种进展性神经退行性疾病,也是痴呆症的最常见原因,主要与衰老有关.
- 细胞衰老,一种永久性细胞循环停止的状态,越来越被认为是衰老过程的重要驱动因素.
- 衰老细胞表现出改变的形态和功能,通过衰老相关的分泌表型 (SASP) 促进与年龄有关的病理.
研究的目的:
- 审查阿尔茨海默病和细胞衰老之间的多因素关系.
- 探索将衰老与AD病原发生联系在一起的特定机制,包括质细胞衰老和线粒体功能障碍.
主要方法:
- 文学评论综合了关于细胞衰老和阿尔茨海默病的当前研究.
- 讨论涉及衰老和AD的关键细胞过程,如DNA损伤,端粒缩短,线粒体功能障碍和自.
- 检查老化的星体细胞和微质细胞在阿尔茨海默病理学中的作用.
主要成果:
- 衰老细胞在阿尔茨海默氏症大脑中积聚在粉样β (Aβ) 斑块和神经纤维状团附近.
- 老化相关的分泌表型 (SASP) 导致AD中神经炎症和神经元功能障碍.
- 缺陷的线粒体和失调的自都与细胞衰老和AD病变产生有关.
结论:
- 细胞衰老是阿尔茨海默病发展和进展的重要因素.
- 准细胞衰老路径为阿尔茨海默病提供了潜在的治疗策略.
- 需要进一步的研究来确定衰老细胞的通用标记物,并充分阐明它们在神经退行过程中的作用.
相关概念视频
Aging
612
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
612
Alzheimer's Disease: Overview
1.6K
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
1.6K
Replicative Cell Senescence
4.3K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
4.3K
Mitochondria
19.6K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
19.6K
Alzheimer's Disease: Treatment
825
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
825
The Effect of Aging on Tissues
3.4K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
3.4K


