大脑中与衰老相关的蛋白质变化
Rafay Ali Syed1,2, Mahnoor Hayat1,3, Hammad Qaiser1
1Department of Biological Sciences, Faculty of Basic & Applied Sciences, International Islamic University Islamabad, Pakistan.
Journal of Alzheimer's disease : JAD
|February 10, 2024
概括
老龄化和阿尔茨海默氏症 (AD) 改变了像粉样蛋白和蛋白这样的脑蛋白. 了解这些分子变化是开发AD新诊断和治疗策略的关键.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 老年学是指老年学的学科.
背景情况:
- 衰老是一种自然过程,导致生理衰退和疾病风险增加.
- 阿尔茨海默病 (AD) 是一种常见的与年龄相关的神经系统疾病,涉及大脑中复杂的分子变化.
- 受影响的关键蛋白质包括粉样蛋白,,金属蛋白和神经营养因子.
研究的目的:
- 审查衰老和AD对大脑分子通路和蛋白质水平的影响.
- 讨论特定蛋白质,如粉样β,和神经营养因子在阿尔茨海默病的发病过程中的作用.
- 突出了对AD中金属离子运输机制进一步研究的需要.
主要方法:
- 文献综述,重点关注衰老和阿尔茨海默病中的分子机制.
- 对蛋白质变化的分析,包括金属蛋白,神经营养因子,粉样蛋白和.
- 检查衰老和AD对蛋白质加工和细胞通路的影响.
主要成果:
- 衰老和AD显著影响粉样蛋白前体蛋白 (AβPP) 和粉样β (Aβ) 的水平和处理.
- 对于神经元功能至关重要的tau蛋白在AD中发生了改变.
- 观察到神经营养因子的变化,如神经生长因子 (NGF) 和来自大脑的神经营养因子 (BDNF),具有潜在的保护作用.
结论:
- 了解在衰老和AD期间蛋白质的分子相互作用至关重要.
- 需要对Aβ和AβPP的金属离子 (例如Cu2+) 传输进行进一步的研究.
- 阐明这些分子通路可能会导致AD的新型诊断和治疗干预措施.
更多相关视频
14:57Preparation of Acute Hippocampal Slices from Rats and Transgenic Mice for the Study of Synaptic Alterations during Aging and Amyloid Pathology
Published on: March 23, 2011
94.1K
11:57Methods to Study Changes in Inherent Protein Aggregation with Age in Caenorhabditis elegans
Published on: November 26, 2017
8.6K
相关概念视频
Alzheimer's Disease: Overview
484
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...
484
Aging
51
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...
51
Amyloid Fibrils
9.5K
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
9.5K
Neural Regulation
39.4K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.4K
Alzheimer's Disease: Treatment
189
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...
189
