Age-related Disorders
Age-related Disorders - Related Videos
09:14
An Introduction to Aging and Regeneration
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2023
Tissues are maintained through a balance of cellular aging and regeneration. Aging refers to the gradual loss of cellular function, and regeneration is the repair of damaged tissue generally mediated by preexisting adult or somatic stem cells. Scientists are interested in understanding the biological mechanisms behind these two complex processes. By doing so, researchers may be able to use somatic stem cells to treat degenerative diseases and develop therapies that could delay the effects of...
06:58
Frailty Assessment in an Aging Mouse Model
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2025
The goal of the present protocol is to provide instructions and guidelines for assessing physical frailty in C57Bl/6x129J laboratory mice. Specific details regarding each measure used in the physical frailty index are explained. Several methods for reporting frailty results are also presented.
05:59
High-Throughput Small Molecule Drug Screening For Age-Related Sleep Disorders Using Drosophila melanogaster
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2023
Presented is a protocol for high-throughput drug screening to improve sleep by monitoring the sleep behavior of fruit flies in an elderly Drosophila model.
10:02
Executive Function in Autism Spectrum Disorder
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2023
Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California Attention, working-memory, planning, impulse control, inhibition, and mental flexibility are important components of human cognition that are often referred to as executive functions. Autism spectrum disorder is a developmental disorder that is characterized by impairments in social interaction, communication, and repetitive behaviors. It is a disorder that lasts a lifetime, and is thought to affect...
11:00
Targeted Training of Ultrasonic Vocalizations in Aged and Parkinsonian Rats
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Cited by 31 •
2011
Voice disorders are debilitating in aging and Parkinson disease. The ultrasonic vocalizations of rats, also affected by these conditions, can be used to study these voice disorders, their neural substrates, and the nature of functional recovery with behavioral intervention.
FAQs
These disorders reflect interacting changes rather than a single cause. Cellular senescence can reduce the capacity of cells to function or divide, while accumulated molecular damage and impaired tissue repair limit restoration. Chronic inflammation may further disrupt tissues, and declining physiological reserve can make organs less able to compensate. Together, these processes can produce widespread functional effects.
Cellular senescence and impaired tissue repair affect how effectively tissues maintain themselves over time. Senescent cells represent a change in cellular function, while reduced repair capacity limits recovery from ongoing damage. Their importance lies in how they connect cellular-level changes with tissue-level dysfunction, helping biology explain why age-related disease can become more severe as physiological reserve declines.
Biological research distinguishes normal aging from disease by examining whether age-associated changes progress into clinically important dysfunction. Researchers consider patterns of cellular senescence, molecular damage, tissue repair, inflammation, and physiological reserve, together with genetic and environmental risk factors. This comparison helps identify which processes reflect aging itself and which are associated with a disorder.
Researchers study age-related disorders alongside genetic and environmental variables to determine why susceptibility and severity differ among individuals. Linking these factors with cellular damage, inflammation, tissue repair, and physiological reserve can clarify how disease risk develops. This work supports more precise biological explanations and may guide the development of diagnostic tools and interventions.
Research in this area can reveal biological changes that help distinguish normal aging from disease. Investigators examine processes such as cellular senescence, accumulated molecular damage, chronic inflammation, impaired tissue repair, and declining physiological reserve when developing diagnostic tools. The resulting information can improve understanding of disease progression and support evaluation of interventions intended to promote healthier aging.
Age-related disorders research spans multiple systems and includes neurodegeneration, cardiovascular disease, cancer, and osteoporosis. Studying these conditions together highlights shared biological processes while preserving their distinct effects on tissues and organs. This broad perspective connects cellular mechanisms with clinical outcomes and helps inform interventions, diagnostic strategies, and public-health approaches to healthier aging.