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Bone Disorders01:29

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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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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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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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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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.
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Related Experiment Video

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Sarcopenia, Aging and Prospective Interventional Strategies.

Tyler B Waltz1, Elayne M Fivenson1, Marya Morevati1,2

  • 1Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, United States.

Current Medicinal Chemistry
|August 2, 2017
PubMed
Summary

Age-related muscle decline, or sarcopenia, is a growing concern. Therapies targeting mitochondrial health, using natural compounds like nicotinamide riboside, show promise for treating sarcopenia.

Keywords:
Sarcopeniaagingmitochondriamitophagynicotinamide adenine dinucleotidephytochemical.

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Area of Science:

  • Gerontology and Muscle Physiology
  • Mitochondrial Biology and Therapeutics

Background:

  • Sarcopenia, age-related muscle decline, significantly impacts human health and healthcare systems.
  • Mitochondrial dysfunction is a key factor in sarcopenia development.
  • There is a need for novel therapeutic strategies to combat sarcopenia in an aging population.

Purpose of the Study:

  • To explore the potential of naturally occurring compounds in treating sarcopenia.
  • To investigate the role of mitochondrial health in mitigating age-related muscle loss.

Main Methods:

  • Review of scientific literature on sarcopenia and mitochondrial function.
  • Identification of naturally occurring compounds with anti-sarcopenic properties.
  • Analysis of mechanisms by which these compounds affect mitochondrial health.

Main Results:

  • Naturally occurring compounds such as nicotinamide riboside, tomatidine, and Urolithin A demonstrate anti-sarcopenic effects.
  • These compounds can enhance mitochondrial health by modulating biogenesis, stress resistance, and mitophagy.
  • Evidence suggests a link between improved mitochondrial function and potential attenuation of sarcopenia.

Conclusions:

  • Therapies aimed at improving mitochondrial function represent a promising avenue for sarcopenia treatment.
  • Naturally occurring compounds offer a potential source for developing anti-sarcopenic interventions.
  • Further clinical research is warranted to validate the efficacy of mitochondrial-targeting compounds in human sarcopenia.