Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Parkinson's Disease: Overview01:15

Parkinson's Disease: Overview

Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is to...
Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

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.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
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...
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...
Dementia l: Introduction01:22

Dementia l: Introduction

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...
Parkinson Disease ll: Pathophysiology01:24

Parkinson Disease ll: Pathophysiology

Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Urinary pesticide biomarker associations with depression and anxiety scores from adolescence into young adulthood in the ESPINA cohort.

Journal of psychiatric research·2026
Same author

Urinary Pesticide Biomarker Associations with Depression and Anxiety Scores from Adolescence into Young Adulthood in the ESPINA cohort.

medRxiv : the preprint server for health sciences·2025
Same author

Epigenetic mechanisms underlying variation of IL-6, a well-established inflammation biomarker and risk factor for cardiovascular disease.

Atherosclerosis·2025
Same author

Serum PFAS and lipid concentrations in Ecuadorian adolescents.

Archives of environmental & occupational health·2025
Same author

Relationships of residential distance to greenhouse floriculture and organophosphate, pyrethroid, and neonicotinoid urinary metabolite concentration in Ecuadorian Adolescents.

International journal of health geographics·2025
Same author

Methylome-wide association analyses of lipids and modifying effects of behavioral factors in diverse race and ethnicity participants.

Clinical epigenetics·2025

Related Experiment Video

Updated: May 18, 2026

Modeling Age-Associated Neurodegenerative Diseases in Caenorhabditis elegans
07:04

Modeling Age-Associated Neurodegenerative Diseases in Caenorhabditis elegans

Published on: August 15, 2020

Neurodegenerative diseases.

Harvey Checkoway1, Jessica I Lundin, Samir N Kelada

  • 1University of Washington, Seattle, WA, USA. checko@u.washington.edu

IARC Scientific Publications
|September 25, 2012
PubMed
Summary

Molecular epidemiology aids understanding of neurodegenerative diseases like Alzheimer's, Parkinson's, and ALS. This approach integrates genetic and environmental factors to improve diagnosis, identify risk genes, and guide prevention strategies.

Area of Science:

  • Neuroscience
  • Epidemiology
  • Genetics

Background:

  • Neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS) represent a significant global health challenge.
  • The incidence of these age-related diseases is increasing due to rising life expectancies, necessitating advanced research into their causes and prevention.
  • Current understanding of genetic and environmental contributions to neurodegenerative diseases remains limited.

Purpose of the Study:

  • To provide an overview of the epidemiologic features of PD, AD, and ALS.
  • To illustrate how molecular epidemiology advances knowledge of disease mechanisms and risk factors.
  • To offer recommendations for future molecular epidemiology research in neurodegenerative diseases.

Main Methods:

More Related Videos

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
08:29

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

Published on: December 18, 2016

Related Experiment Videos

Last Updated: May 18, 2026

Modeling Age-Associated Neurodegenerative Diseases in Caenorhabditis elegans
07:04

Modeling Age-Associated Neurodegenerative Diseases in Caenorhabditis elegans

Published on: August 15, 2020

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
08:29

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans

Published on: December 18, 2016

  • Application of molecular epidemiology, integrating genomics, proteomics, and environmental toxicant burden assessments.
  • Analysis of epidemiologic data to identify disease susceptibility genes and prognostic factors.
  • Quantification of environmental exposures and their correlation with disease risk.

Main Results:

  • Molecular epidemiology has successfully improved disease diagnoses and identified high-risk genes for familial neurodegenerative diseases.
  • This approach is valuable for investigating genetic variants associated with susceptibility to non-familial forms of these diseases.
  • Integration of molecular techniques enhances the characterization of pathogenesis mechanisms and specific risk factors.

Conclusions:

  • Molecular epidemiology offers significant promise for advancing the understanding and management of neurodegenerative diseases.
  • This research strategy is crucial for identifying specific risk factors, particularly for non-familial disease forms.
  • Future research should focus on leveraging molecular epidemiology for improved medical management and disease prevention.