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Related Concept Videos

Alzheimer Disease ll: Pathophysiology01:23

Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...
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Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
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Related Experiment Video

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3D Modeling of the Lateral Ventricles and Histological Characterization of Periventricular Tissue in Humans and Mouse
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Age-related white matter changes.

Yun Yun Xiong1, Vincent Mok

  • 1Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, Shatin 999077, Hong Kong.

Journal of Aging Research
|August 31, 2011
PubMed
Summary
This summary is machine-generated.

Age-related white matter changes (WMC), linked to small vessel disease, are associated with serious health issues. This review covers WMC pathophysiology, epidemiology, clinical impact, biomarkers, and potential treatments.

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Area of Science:

  • Neurology
  • Gerontology
  • Vascular Medicine

Background:

  • Age-related white matter changes (WMC) are a hallmark of arteriolosclerotic small vessel disease.
  • WMC are associated with significant adverse outcomes, including cognitive decline, dementia, and increased mortality.
  • Despite clinical relevance, few treatments for WMC have been evaluated.

Purpose of the Study:

  • To review the current understanding of age-related white matter changes (WMC).
  • To consolidate information on WMC pathophysiology, epidemiology, clinical significance, biomarkers, and treatments.

Main Methods:

  • Comprehensive literature review.
  • Synthesis of existing research on age-related white matter changes.

Main Results:

  • WMC are linked to aging and vascular risk factors.
  • Established associations between WMC and poor health outcomes.
  • Limited clinical trials investigating WMC treatments.

Conclusions:

  • Age-related WMC are a significant clinical concern with broad implications.
  • Further research into WMC pathophysiology and effective treatments is warranted.
  • Understanding WMC is crucial for managing age-related neurological and vascular conditions.