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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...
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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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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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Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
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...
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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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Therapeutic Massage for Psychological Well-being in Geriatric Oncology
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Published on: May 22, 2026

A gerontologic perspective on cancer and aging.

Thomas O Blank1, Keith M Bellizzi

  • 1Human Development and Family Studies, University of Connecticut, Storrs, Connecticut 06269, USA. thomas.blank@uconn.edu

Cancer
|April 23, 2008
PubMed
Summary

Cancer

Area of Science:

  • Geriatric Oncology
  • Lifespan Cancer Research
  • Psychosocial Aspects of Aging and Cancer

Background:

  • Most cancer diagnoses occur in individuals over 65, with a growing population of younger survivors aging with the disease.
  • Geriatric oncology is an emerging specialty focusing on aging and cancer's functional impacts, including comorbidities.
  • Limited research addresses cancer from a gerontologic and lifespan perspective, particularly concerning quality of life and psychological impact.

Purpose of the Study:

  • To explore the influence of aging on the psychological impact and quality of life in cancer patients.
  • To apply gerontologic concepts to understand age-related variations in cancer survivorship.
  • To investigate the interplay of psychological, social, and comorbidity factors in cancer survivorship across the lifespan.

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Main Methods:

  • Review of existing research on cancer survivorship, aging, and psychological impact.
  • Analysis of empirical findings from prostate cancer survivors (1-8 years post-diagnosis).
  • Application of gerontologic theories to explain age-related differences in cancer experience.

Main Results:

  • Psychological impact of cancer varies significantly and is influenced by age.
  • Older individuals may experience less intense negative and positive psychological effects from cancer.
  • Age-related differences in impact are partly explained by psychological factors (e.g., future time perspective) and social factors (e.g., roles).

Conclusions:

  • Gerontologic concepts offer valuable insights into the age-related effects of cancer on survivors.
  • Understanding these age-related psychosocial dynamics can enhance cancer care and survivorship.
  • Integrating gerontologic principles can lead to more targeted interventions for diverse cancer patient populations.