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Related Concept Videos

Aging01:26

Aging

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...
The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

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...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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 not...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

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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Therapeutic Massage for Psychological Well-being in Geriatric Oncology
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Aging well together--a mini-review.

Margund K Rohr1, Frieder R Lang

  • 1Institute of Psychogerontology, University of Erlangen-Nuremberg, Erlangen, Germany.

Gerontology
|April 8, 2009
PubMed
Summary
This summary is machine-generated.

Social integration significantly impacts successful aging by navigating relationship challenges. Individuals actively manage social connections, optimizing experiences and mitigating risks for better well-being in later life.

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Frailty Assessment in an Aging Mouse Model
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Area of Science:

  • Gerontology
  • Social Psychology
  • Sociology

Background:

  • Social integration is crucial for successful aging.
  • Social contexts present challenges and potentials in adulthood.
  • Understanding relationship dynamics is key to well-being.

Purpose of the Study:

  • To review the contribution of social integration to successful aging.
  • To propose a model for aging well together.
  • To identify implications for research and practice.

Main Methods:

  • Literature review of empirical findings on social integration and aging.
  • Development of a theoretical model for social aging.
  • Analysis of regulatory contributions of social bonding.

Main Results:

  • Social contexts involve elasticity, role differentiation, and risk potentials.
  • A model of 'aging well together' is proposed, integrating selection, optimization, and compensation.
  • Empirical evidence supports the role of social bonding in positive aging.

Conclusions:

  • Individuals actively manage social relationships to promote successful aging.
  • The proposed model offers a framework for understanding and enhancing social aging.
  • Further research is needed to explore the complex effects of social relationships on aging well.