神经退行:卡路里限制对大脑的Sirtuin蛋白水平的影响
Basar Atalay1, Soner Dogan2, Burhan Oral Gudu3
1University of Yeditepe, School of Medicine, Department of Neurosurgery, Istanbul, Turkiye; University of Miami Miller School of Medicine, Department of Neurology, Neurocriticalcare, Miami, USA; Jackson Memorial Hospital, Department of Neurology, Neurocritical Care, Miami, USA.
卡路里限制 (CR) 增加了小鼠大脑中的保护性Sirtuin (SIRT) 蛋白质,减少了神经退行. 连续和间歇性CR都能保护大脑免受与年龄相关的衰退.
科学领域:
- 神经科学是一个神经科学.
- 衰老研究研究 衰老研究
- 分子生物学分子生物学
背景情况:
- 卡路里限制 (CR) 在激活对神经退行性疾病 (NDD) 的保护机制方面表现有前途.
- 已知Sirtuin (SIRT) 蛋白质可以防止与年龄相关的神经退行 (ND).
- 没有先前的研究同时测量SIRT 1,3,和6蛋白质水平在使用ELISA在间歇性卡路里限制后的大脑同质体.
研究的目的:
- 研究间歇性和慢性卡路里限制对小鼠大脑中SIRT蛋白水平 (SIRT1,3和6) 的影响.
- 为了评估不同卡路里限制协议的小鼠的神经退行症的程度.
- 为了确定卡路里限制是否通过调节SIRT蛋白表达来缓解神经退行.
主要方法:
- 小鼠被分为随意 (AL),慢性CR (CCR) 和间歇CR (ICR) 组.
- 使用ELISA在大脑同质体中量化SIRT 1,3和6蛋白水平.
- 通过使用ImageJ.进行化玉染色和神经元形态分析来评估神经退行,并进行神经元形态分析.
主要成果:
- 与AL和基线 (BL) 组相比,ICR和CCR组的SIRT1水平显著升高.
- 与AL和BL组相比,SIRT6水平在CR组中呈现出类似的升高.
- 在AL组观察到显著的神经退行,而CCR和ICR组显示神经退行减少,神经元形态或数量没有显著变化.
结论:
- 慢性和间歇性卡路里限制导致小鼠大脑中SIRT1,3和6的表达增加.
- 在接受CR的小鼠中,SIRT蛋白水平升高与神经退行性降低相关.
- 通过增强SIRT蛋白表达,CR协议显示了减轻与年龄相关的神经退行症的潜力.
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
08:52Measurement of Protein Turnover Rates in Senescent and Non-Dividing Cultured Cells with Metabolic Labeling and Mass Spectrometry
Published on: April 6, 2022
相关概念视频
Regulated Protein Degradation
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Role of Neurotransmitters in Memory
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
Neural Regulation
Mitochondria
Long-term Depression
Calcium Ion Concentration Mechanism
If over...
siRNA - Small Interfering RNAs
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
