相关实验视频
Updated: Sep 13, 2025

06:08
Transcranial Pulse Stimulation for Alzheimer's Patients
Published on: April 4, 2025
1.3K
脉冲压与阿尔茨海默病老年人的前神经功能障碍的关联:一个队列研究
Nayeong Kong1, Geun Hui Won2, Joon Hyung Jung3
1Department of Psychiatry, Keimyung University School of Medicine, Daegu, Republic of Korea.
Scientific reports
|July 28, 2025
概括
高脉压 (PP) 与老年人,特别是患有阿尔茨海默氏症 (AD) 病理的老年人中预突触功能障碍和病理有关. 这种血管衰老标志物加剧了突触问题,导致AD的进展.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 心血管科学 心血管科学
背景情况:
- 血管衰老和突触功能障碍与阿尔茨海默病 (AD) 有关,但它们之间的直接关系尚未完全理解.
- 脉压 (PP) 是衡量血管衰老的指标,可能会影响神经退行过程.
- 研究PP,突触健康和AD生物标志物之间的联系对于了解疾病机制至关重要.
研究的目的:
- 为了检查脉冲压 (PP),前突触功能障碍和活体阿尔茨海默病 (AD) 病理之间的关联.
- 为了确定前突触功能障碍是否介导PP和脑脊液 (CSF) 酸化 (p-tau) 之间的关系.
主要方法:
- 从阿尔茨海默病神经成像计划 (ADNI) 数据库中分析了来自649名老年人的数据 (认知正常和轻度认知障碍).
- 评估PP,中枢神经液GAP-43 (前突触功能障碍标志物),中枢神经液p-tau和粉样β (Aβ) 沉积之间的关联.
- 调解分析,以评估前突触功能障碍在PP-p-tau关系中的作用.
主要成果:
- 升高的PP显著与增加的前神经功能障碍和更高的CSFp-tau和总tau水平有关.
- PP和皮层Aβ沉积之间的积极相互作用表明,PP与Aβ水平的增加加剧了前突触功能障碍.
- 前突触功能障碍显著介导了PP和CSFp-tau之间的关联,占间接影响的81.6%.
结论:
- 升高的脉压会加剧非痴呆老年人的前交联动功能障碍,特别是那些患有AD病理的老年人.
- PP有助于病理,突出了血管衰老和神经退行之间的关键联系.
- 进一步研究连接PP和前突触功能障碍的机制是有必要的,以告知潜在的干预措施.
相关概念视频
Alzheimer's Disease: Overview
669
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...
669
Blood Pressure
4.7K
The movement of blood in a human body, commonly referred to as blood flow, is determined by the volume of blood that traverses a certain section of the bodily system per unit time. It is the rhythmic contraction of the heart's ventricles that primarily instigates this movement. As the ventricles contract, blood is forced into the prominent arteries, which then flow from areas of greater pressure to lower pressure areas. This movement continues into smaller arteries and arterioles and...
4.7K
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
35
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
35
Pulse amplitude and quality
2.2K
Pulse amplitude is a crucial indicator of cardiac health because it provides valuable insights into the strength of left ventricular contractions and the overall uniformity of blood circulation within the vasculature. The strength of the pulse is directly related to the force with which the heart contracts and the volume of blood being pumped.
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...
2.2K
Pulse
1.1K
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
The pulse serves as a clinical...
1.1K
Special considerations while measuring pulse
656
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
656

