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Related Concept Videos

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.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
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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.
Cellular Clock Theory
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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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Mitochondria01:37

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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,...
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Related Experiment Video

Updated: Jul 5, 2025

The Creation of a Rat Model for Osteosarcopenia via Ovariectomy
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Frailty and sarcopenia-from theory to practice.

J K H Luk1, D K Y Chan2,3

  • 1Department of Medicine and Geriatrics, Fung Yiu King Hospital, Hong Kong.

Hong Kong Medical Journal = Xianggang Yi Xue Za Zhi
|January 17, 2024
PubMed
Summary
This summary is machine-generated.

Frailty and sarcopenia are significant geriatric syndromes linked to poor outcomes in older adults. Pandemic lockdowns may exacerbate these conditions, highlighting the need for assessment and early intervention strategies.

Keywords:
FrailtySarcopenia

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Area of Science:

  • Geriatric Medicine
  • Aging Research
  • Public Health

Background:

  • Frailty and sarcopenia are prevalent geriatric syndromes with significant negative health consequences for older adults.
  • These conditions are associated with numerous adverse outcomes, underscoring their clinical importance.
  • Comprehensive geriatric assessment should routinely include evaluation for frailty and sarcopenia.

Purpose of the Study:

  • To highlight the importance of assessing frailty and sarcopenia in older adults.
  • To discuss the potential negative impact of pandemic-related restrictions on these conditions.
  • To emphasize the need for early interventions and further research.

Main Methods:

  • Review of current literature and consensus guidelines on frailty and sarcopenia.
  • Discussion of the impact of recent pandemic lockdowns on older adults' health.
  • Identification of areas requiring further research for optimal management.

Main Results:

  • Frailty and sarcopenia are linked to poor outcomes in older adults.
  • Pandemic lockdowns, due to social isolation and reduced activity, may worsen frailty and sarcopenia.
  • Assessment and prevention are crucial, especially during pandemics.

Conclusions:

  • Frailty and sarcopenia assessment should be standard in geriatric care.
  • Interventions based on guidelines are recommended.
  • Pandemics necessitate focused strategies for managing frailty and sarcopenia, with further research needed.