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Related Concept Videos

Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

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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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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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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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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Obesity01:24

Obesity

The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
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Related Experiment Video

Updated: Jun 8, 2026

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis
08:34

Mechanism of Regulation of Adipocyte Numbers in Adult Organisms Through Differentiation and Apoptosis Homeostasis

Published on: June 3, 2016

Adiposity hormones and dementia.

Deborah R Gustafson1

  • 1Section for Psychiatry and Neurochemistry, Neuropsychiatric Epidemiology Unit at the Sahlgrenska Academy, University of Gothenburg, Sweden. deborah.gustafson@neuro.gu.se

Journal of the Neurological Sciences
|September 30, 2010
PubMed
Summary
This summary is machine-generated.

Excess adipose tissue contributes to vascular risk and dementia. Hormones from fat, like leptin and adiponectin, interact with the brain, influencing dementia development and progression.

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Area of Science:

  • Endocrinology
  • Neuroscience
  • Metabolic Syndrome

Background:

  • Adipose tissue functions as an endocrine organ impacting metabolic and vascular health.
  • Obesity is a significant risk factor for vascular disease and late-onset dementia.
  • Vascular risk is linked to hormonal and metabolic dysregulation, potentially preceding or resulting from dementia.

Purpose of the Study:

  • To review the epidemiology of adiposity and dementia.
  • To explore adipose tissue biology and its key hormones, leptin and adiponectin.
  • To synthesize evidence on the role of adipose hormones in dementia.

Main Methods:

  • Literature review of epidemiological data on adiposity and dementia.
  • Analysis of adipose tissue endocrine functions.
  • Examination of leptin and adiponectin interactions with the brain.

Main Results:

  • Adiposity is a cornerstone of vascular risk, increasing dementia incidence.
  • Hormonal alterations associated with obesity may precede or arise from dementia.
  • Leptin and adiponectin, produced by adipose tissue, directly influence brain function.

Conclusions:

  • Adipose tissue plays a critical role in brain health and dementia processes.
  • Understanding adipose hormones is crucial for comprehending dementia.
  • Metabolic and hormonal factors are integral to dementia pathogenesis.