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Related Concept Videos

The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Drug Dosing: Geriatric Patients01:15

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Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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Aging01:26

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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.
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As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

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Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

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Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are...
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Validation of a Psychosocial Intervention on Body Image in Older People: An Experimental Design
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Aging is not a disease: implications for intervention.

Suresh I S Rattan1

  • 1Laboratory of Cellular Ageing, Department of Molecular Biology and Genetics, Aarhus University, Denmark.

Aging and Disease
|June 6, 2014
PubMed
Summary
This summary is machine-generated.

Aging is a natural biological process, not a disease, driving age-related conditions. Focusing on health maintenance, not just disease treatment, offers sustainable solutions for lifelong well-being.

Keywords:
homeodynamicshomeostasishormesishormeticshormetinlongevitystress

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Area of Science:

  • Gerontology
  • Biomedical Sciences
  • Healthspan Research

Background:

  • Biological systems possess complex maintenance, repair, and defense mechanisms.
  • Aging is the primary risk factor for most age-related diseases but is not a disease itself.
  • Current interventions often focus on disease management rather than proactive health maintenance.

Purpose of the Study:

  • To reframe the understanding of aging as a process, not a disease.
  • To advocate for a shift from illusory anti-aging treatments to practical healthspan maintenance strategies.
  • To introduce the concept of homeodynamic space for measuring health and resilience.

Main Methods:

  • Conceptual analysis of aging and its relationship to disease.
  • Exploration of the concept of homeodynamic space.
  • Evaluation of current health and disease intervention strategies.

Main Results:

  • Aging lacks specific gerontogenes and is a fundamental biological process.
  • A health-focused approach, emphasizing maintenance and resilience, is more sustainable than disease-centric models.
  • Homeodynamic space offers a framework for evidence-based health parameter assessment.

Conclusions:

  • Understanding aging as a process necessitates a paradigm shift towards healthspan extension and maintenance.
  • Prioritizing health mechanisms and resilience through concepts like homeodynamic space is crucial.
  • Sustainable health strategies require a move away from solely disease-oriented research and treatment.