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Related Concept Videos

Dementia01:30

Dementia

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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.
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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.
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Alzheimer's Disease: Treatment01:22

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Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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Amnesia01:13

Amnesia

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Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
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Disorders of the Nervous Tissue01:28

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Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
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Related Experiment Video

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The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
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Dementia.

E L Cunningham1, B McGuinness2, B Herron3

  • 1Centre for Public Health, Queen's University Belfast.

The Ulster Medical Journal
|July 15, 2015
PubMed
Summary
This summary is machine-generated.

Dementia, a condition of cognitive decline, affects 7.1% of UK adults aged 65+. Alzheimer's disease is the most common cause, highlighting the need for better diagnostic tools and treatments for this vulnerable population.

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Area of Science:

  • Neurology
  • Geriatrics
  • Public Health

Background:

  • Dementia is a clinical diagnosis characterized by progressive cognitive decline and functional dependence.
  • Prevalence in the UK is estimated at 1.3% of the general population, rising to 7.1% for those aged 65 and over.
  • In Northern Ireland, an estimated 19,765 individuals lived with dementia in 2013.

Purpose of the Study:

  • To review the current understanding of dementia, including its causes, diagnosis, and treatment.
  • To highlight the significant impact of dementia on individuals, society, and healthcare systems.

Main Methods:

  • Literature review of dementia prevalence, causes, and management.
  • Analysis of demographic data for prevalence estimation.

Main Results:

  • Alzheimer's disease accounts for 50-75% of dementia cases, followed by vascular dementia (20%), dementia with Lewy bodies (5%), and frontotemporal lobar dementia (5%).
  • Symptoms and underlying pathologies often overlap, complicating diagnosis.
  • Acetylcholinesterase inhibitors and memantine are the only currently licensed dementia treatments.

Conclusions:

  • Emerging biomarkers show promise for improving dementia diagnosis and prognosis.
  • The increasing prevalence and vulnerability of individuals with dementia present evolving challenges for healthcare and society.
  • Further research into diagnostic tools and therapeutic interventions is crucial.