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Related Concept Videos

Dementia l: Introduction01:22

Dementia l: Introduction

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Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...
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Dementia01:30

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Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
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Alzheimer Disease l: Introduction01:29

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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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Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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Alzheimer's Disease: Overview01:26

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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...
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Alzheimer Disease ll: Pathophysiology01:23

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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...
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Related Experiment Video

Updated: Apr 24, 2026

Cryosectioning and Immunostaining Mouse Inner Ear Tissue: From Embryonic to Adult Stages
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[Hearing impairment and dementia].

I Kilimann1, A Óvari, A Hermann

  • 1Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) e. V., Standort Rostock/Greifswald, Gehlsheimer Str. 20, 18147, Rostock, Deutschland, ingo.kilimann@dzne.de.

Zeitschrift Fur Gerontologie Und Geriatrie
|September 14, 2014
PubMed
Summary
This summary is machine-generated.

Dementia and hearing loss significantly impact quality of life, especially in aging populations. Early diagnosis and intervention for both conditions are crucial for managing comorbidity and maintaining societal participation.

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Area of Science:

  • Gerontology and Neurology
  • Public Health and Epidemiology

Context:

  • Aging societies face rising prevalence of dementia and hearing loss.
  • These conditions are leading causes of reduced quality of life globally.
  • Comorbidity presents significant challenges to healthcare systems.

Purpose:

  • To explore the diagnostic and therapeutic characteristics of hearing problems and dementia.
  • To highlight the challenges in differentiating and treating co-occurring dementia and hearing loss.
  • To emphasize the importance of understanding the interplay between these conditions.

Summary:

  • The World Health Organization identifies dementia and hearing loss as major contributors to disability.
  • Symptom overlap complicates diagnosis and treatment for specialists.
  • Interdisciplinary knowledge is essential for effective management.

Impact:

  • Early intervention can preserve societal participation and potentially reduce dementia risk.
  • Improved understanding aids neurologists, psychiatrists, and ENT/hearing specialists.
  • Addresses the growing healthcare demands associated with comorbid aging-related conditions.