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Related Concept Videos

Aging01:26

Aging

848
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...
848
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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Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

242
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...
242
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption01:22

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption

717
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...
717
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

268
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...
268

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Related Experiment Video

Updated: Feb 15, 2026

Continuous High-resolution Microscopic Observation of Replicative Aging in Budding Yeast
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Aging in the Philippines.

Adrian N S Badana1, Ross Andel1

  • 1School of Aging Studies, The University of South Florida, Tampa.

The Gerontologist
|January 12, 2018
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Summary
This summary is machine-generated.

The Philippines faces a growing aging population, requiring enhanced support for older adults and their family caregivers. Policy and research must adapt to meet the evolving needs of this demographic shift.

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Area of Science:

  • Gerontology
  • Public Health
  • Sociology

Background:

  • The Philippines is projected to experience a significant increase in its elderly population.
  • Cultural factors influence views on aging and family caregiving responsibilities.

Purpose of the Study:

  • To provide an overview of population aging issues in the Philippines.
  • To examine family caregiving and policy concerns for older adults.
  • To highlight the need for enhanced research and policy development.

Main Methods:

  • Literature review of existing research on aging in the Philippines.
  • Analysis of current policies related to elder care.
  • Discussion of socio-cultural perspectives on aging and caregiving.

Main Results:

  • Population aging will increase demand for elder services and caregiver support.
  • Cultural norms emphasize informal family care for the elderly.
  • Current policies and research are insufficient to meet future needs.

Conclusions:

  • Proactive planning by policymakers is crucial for the growing elderly population.
  • Strengthening research and policy is essential for supporting older adults and caregivers.
  • Addressing the unique socio-cultural context is key to effective elder care strategies.