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Related Concept Videos

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...
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...
Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Fruit Development, Structure, and Function01:58

Fruit Development, Structure, and Function

Fruits form from a mature flower ovary. As seeds develop from the ovules contained within, the ovary wall undergoes a series of complex changes to form fruit. In some fruits, such as soybeans, the ovary wall dries; in other fruits, such as grapes, it remains fleshy. In some cases, organs other than the ovary contribute to fruit formation; such fruits are called accessory fruits.
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...
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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Related Experiment Video

Updated: Jul 8, 2026

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
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Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

Published on: July 5, 2017

Berry fruit supplementation and the aging brain.

Barbara Shukitt-Hale1, Francis C Lau, James A Joseph

  • 1USDA-ARS Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts 02111, USA. barbara.shukitt-hale@ars.usda.gov

Journal of Agricultural and Food Chemistry
|January 24, 2008
PubMed
Summary

Dietary polyphenols from berries may combat age-related cognitive and motor decline. These antioxidants reduce oxidative stress and inflammation, supporting healthy aging and potentially lowering healthcare costs.

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Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults
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Related Experiment Videos

Last Updated: Jul 8, 2026

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro
12:00

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

Published on: July 5, 2017

Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults
14:39

Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults

Published on: April 22, 2022

Area of Science:

  • Neuroscience
  • Gerontology
  • Nutritional Science

Background:

  • Aging nervous systems are vulnerable to neurodegenerative diseases like Alzheimer's and Parkinson's.
  • Age-related cognitive and motor deficits can lead to severe disability and increased healthcare costs.
  • Interventions to slow neuronal aging are crucial for promoting healthy aging.

Purpose of the Study:

  • To discuss the benefits of dietary polyphenols in rodent models.
  • To explore the molecular mechanisms underlying polyphenol neuroprotection.
  • To highlight the potential of berry consumption for mitigating age-related neuronal deficits.

Main Methods:

  • Review of studies on polyphenol interventions in rodent models.
  • Analysis of molecular pathways affected by berry polyphenols.
  • Focus on effects on oxidative stress, inflammation, and neuronal signaling.

Main Results:

  • Polyphenols, particularly from berries, show promise in reducing age-related neuronal deficits.
  • Mechanisms include lowering oxidative stress and inflammation.
  • Polyphenols may also directly influence neuronal communication and plasticity.

Conclusions:

  • Dietary antioxidants and anti-inflammatory compounds, like berry polyphenols, may protect against age-related neurodegeneration.
  • These compounds offer a potential strategy to enhance healthy aging and reduce associated healthcare burdens.
  • Further research into molecular mechanisms can inform dietary recommendations for brain health in aging populations.