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Related Concept Videos

Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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Nursing diagnoses represent a problem validated by major defining characteristics. There are four categories of nursing diagnoses: problem-focused, risk, health promotion or wellness, and syndrome. The anatomy of a nursing diagnosis includes three components: problem statement or diagnostic label, defining characteristics, and related factors.
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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...
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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.
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Formulating and Validating Nursing Diagnosis I01:26

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A nursing diagnosis is written when the nurse recognizes a cluster of essential patient data indicating health problems treated with independent nursing interventions. The standardized terminologies of a nursing diagnosis help nurses identify and treat patients' problems. Every electronic health record that uses nursing diagnosis must employ standard diagnostic terminology. Developing an efficient, individualized care plan begins with accurate nursing diagnoses.
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The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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Related Experiment Video

Updated: Jun 13, 2025

Symmetric Bihemispheric Postmortem Brain Cutting to Study Healthy and Pathological Brain Conditions in Humans
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Defining an Ageing-Related Pathology, Disease or Syndrome: International Consensus Statement.

Emma Short, Ian M Adcock, Bilal Al-Sarireh

    Medrxiv : the Preprint Server for Health Sciences
    |September 16, 2024
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    Summary

    Experts established criteria for classifying age-related diseases. These criteria define pathologies that develop with age, cause functional decline, and are supported by human studies, aiding future research and interventions.

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    Area of Science:

    • Gerontology and Ageing Research
    • Pathology and Disease Classification
    • Public Health and Healthcare Policy

    Background:

    • Global populations are living longer, but increased lifespan does not guarantee improved healthspan.
    • Ageing-related diseases significantly impact health status, functional capacity, and quality of life.
    • Comprehensive classification and staging systems for ageing-related conditions are vital for societal planning and intervention development.

    Purpose of the Study:

    • To define the scope of ageing-related pathologies, diseases, and syndromes.
    • To establish consensus-based criteria for identifying and classifying these conditions.
    • To lay the foundation for future staging and intervention strategies.

    Main Methods:

    • A consensus meeting was convened by the International Consortium to Classify Ageing-Related Pathologies (ICCARP) on February 19, 2024.
    • 150 experts debated and voted on provisional criteria for ageing-related pathologies.
    • A consensus agreement of ≥70% was required for criterion approval.

    Main Results:

    • Accepted criteria for ageing-related pathologies include: development/progression with chronological age.
    • Association with or contribution to functional decline or increased susceptibility to it.
    • Evidence supported by human studies.

    Conclusions:

    • International experts have agreed on criteria for ageing-related pathologies, diseases, and syndromes.
    • These criteria will be utilized by ICCARP for classification and staging.
    • This consensus facilitates a standardized approach to understanding and managing age-related conditions.