Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Alzheimer's Disease: Overview01:26

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...
1.6K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

251
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
251
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

212
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
212
Brain Imaging01:14

Brain Imaging

629
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
629
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

460
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
460
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

758
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
758

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Human sex-specific hormone effects on cerebrovascular health in males and females.

Mechanisms of ageing and development·2026
Same author

Coronary Artery Disease Is Linked with Demyelination and Iron Deposition in White Matter Watershed Areas.

Aging and disease·2026
Same author

Distinct Grey Matter Alterations in Untreated Mild to Moderate Chronic Low Back Pain: A Longitudinal Magnetic Resonance Imaging Study.

European journal of pain (London, England)·2026
Same author

Maternal hyperglycemia during pregnancy is associated specifically with larger hypothalamic volumes at 12 years of age.

Journal of developmental origins of health and disease·2026
Same author

Cardiorespiratory fitness in relation to cerebral vascular and metabolic health in older adults with coronary artery disease.

GeroScience·2026
Same author

Greater cardiorespiratory fitness is associated with higher cerebral blood flow and lower oxygen extraction fraction in healthy older adults.

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism·2026

相关实验视频

Updated: Jan 8, 2026

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451
05:17

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451

Published on: April 18, 2025

751

阿尔茨海默氏症成像联盟

Brittany Intzandt1,2, Zacharie Potvin-Jutras3,4,5, Kevin Whittingstall6

  • 1Dr. Sandra E. Black Centre for Brain Resilience and Recovery, LC Campbell Cognitive Neurology, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 23, 2025
PubMed
概括
此摘要是机器生成的。

性激素在不同生命阶段对男性和女性不同影响大脑血流. 了解这些特定于性别和年龄的荷尔蒙效应是制定痴呆症预防策略的关键.

更多相关视频

Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry
09:31

Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry

Published on: March 7, 2019

11.0K
Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
12:50

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

40.8K

相关实验视频

Last Updated: Jan 8, 2026

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451
05:17

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451

Published on: April 18, 2025

751
Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry
09:31

Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry

Published on: March 7, 2019

11.0K
Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
12:50

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

40.8K

科学领域:

  • 神经科学是一个神经科学.
  • 内分泌学 在内分泌学.
  • 老年学是指老年学的学科.

背景情况:

  • 随着年龄的增长,性激素的下降会影响大脑血管健康和痴呆风险.
  • 早期更年期是一个重要的痴呆症风险因素.
  • 雌激素对女性血管和大脑健康有好处,但其对脑血管的影响尚未得到充分研究;在男性中的作用尚不清楚.

研究的目的:

  • 研究循环性激素和脑血管健康指标之间的性别和生命阶段特定关联.
  • 了解雌激醇和如何影响大脑血流 (CBF),动脉过渡时间 (ATT) 和脑血管反应率 (CVR) 与衰老和更年期状态相关.

主要方法:

  • 招募了187名女性 (生殖,绝经前期,绝经后期) 和157名男性 (年轻,年长).
  • 磁力共振成像量化了CBF,ATT和CVR.
  • 血液样本测量了循环性激素水平;统计分析 (ANCOVA,多项式回归) 检查了激素与脑血管之间的关系.

主要成果:

  • 在女性中,雌激醇与ATT (绝经前期) 呈现反向关系,而与CVR,ATT,CBF和CVR在生殖,绝经前期和绝经后期各个阶段有不同的关联.
  • 在男性中,与年轻人中的CBF正相关,而雌激醇与年长男性的CBF呈反相关.

结论:

  • 性激素与脑血管健康标志物 (CBF,ATT,CVR) 呈现明显的关联,这取决于性别和生命阶段.
  • 雌激醇通常与女性更好的脑血管健康相关,而丸激素显示出混合的效果.
  • 受益于年轻男性的CBF,但雌激素对老年男性的CBF产生了负面影响,突出了针对性激素干预降低痴呆风险的潜力.