相关实验视频

Updated: Jan 7, 2026

Targeting Alpha Synuclein Aggregates in Cutaneous Peripheral Nerve Fibers by Free-floating Immunofluorescence Assay

Targeting Alpha Synuclein Aggregates in Cutaneous Peripheral Nerve Fibers by Free-floating Immunofluorescence Assay

Published on: June 25, 2019

在Lewy体痴呆症中的皮肤酸化α-synuclein

Christopher H Gibbons¹, Todd Levine^2,3, Charles H Adler⁴

¹Department of Neurology Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.

Annals of clinical and translational neurology

|December 26, 2025

概括

皮肤化α-synuclein (P-SYN) 皮肤活检显示,在患有Lewy体痴呆症 (DLB) 的患者中,其检测率很高. P-SYN还在近三分之一的认知功能受损的个体中被检测到,这表明其潜在的诊断实用性.

科学领域:

神经学神经学
生物标志物发现发现
神经退行性疾病神经退行性疾病

背景情况:

勒维体痴呆症 (DLB) 是一种常见的神经退行性疾病.
准确和早期诊断DLB仍然是一个临床挑战.
化α-synuclein (P-SYN) 是synucleinopathies的一个关键病理标志.

研究的目的:

通过皮肤活检评估皮肤P-SYN检测的诊断性能.
评估DLB患者,认知障碍患者 (减少MoCA) 和健康对照患者的P-SYN水平.

主要方法:

对前性,盲目的Synuclein-One研究的子组分析 (N=218).
收集皮肤活检以检测P-SYN.
研究对象包括符合共识标准的DLB患者和正常或降低蒙特利尔认知评估 (MoCA) 评分的对照组.

主要成果:

在96.0%的DLB患者 (48/50) 中检测到皮肤P-SYN.
在31%的控制组中检测到P-SYN,其MoCA降低 (8/26).
只有3.3%的正常MoCA的对照显示P-SYN检测 (4/120).

结论:

皮肤活检检测P-SYN在临床诊断的DLB中显示出高灵敏度.
在皮肤上检测P-SYN可能有助于诊断DLB,即使在认知能力下降的个体中也是如此.
这项研究支持P-SYN皮肤活检作为DLB的诊断工具的实用性.

关键词:

患有利维体痴呆症的痴呆症轻度的认知障碍轻度的认知障碍皮肤活检皮肤活检综核蛋白异常症 (synucleinopathy) 是一种同核蛋白异常症.

更多相关视频

Studying Pre-formed Fibril Induced α-Synuclein Accumulation in Primary Embryonic Mouse Midbrain Dopamine Neurons

Studying Pre-formed Fibril Induced α-Synuclein Accumulation in Primary Embryonic Mouse Midbrain Dopamine Neurons

Published on: August 16, 2020

Sequential Extraction of Soluble and Insoluble Alpha-Synuclein from Parkinsonian Brains

Sequential Extraction of Soluble and Insoluble Alpha-Synuclein from Parkinsonian Brains

Published on: January 5, 2016

相关概念视频

Neural Regulation

Neural Regulation

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.

Lysosomal Hydrolases

Lysosomal Hydrolases

Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...

Parkinson's Disease: Overview

Parkinson's Disease: Overview

Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...