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Related Concept Videos

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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Aging01:26

Aging

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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
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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Factors Affecting the Risk of Infection01:26

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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
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Immunological Memory01:23

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Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
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Psychoneuroimmunology: Diabetes and Cancer01:19

Psychoneuroimmunology: Diabetes and Cancer

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Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
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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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Related Experiment Video

Updated: Sep 20, 2025

Quantitative Imaging of Lineage-specific Toll-like Receptor-mediated Signaling in Monocytes and Dendritic Cells from Small Samples of Human Blood
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Aging and immunity: the age-old tango.

Inés Fernández Maestre1, Alexander S Harris1, Corina Amor2

  • 1Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.

Genes & Development
|May 28, 2025
PubMed
Summary
This summary is machine-generated.

Aging impacts the immune system, leading to decline and chronic inflammation. This review explores immune aging and therapies to combat age-related diseases.

Keywords:
agingimmunosenescencesenotherapeutics

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Area of Science:

  • Immunology and Gerontology: Focuses on the intersection of immune system aging and its systemic effects.

Background:

  • Global population aging increases age-related diseases, necessitating a deeper understanding of aging biology.
  • The immune system plays a critical role in aging, influencing hematopoietic stem cells, innate and adaptive immunity, and tissue homeostasis.

Purpose of the Study:

  • To review the intricate relationship between the aging process and immune system function.
  • To discuss novel therapeutic strategies targeting immune modulation for age-related pathologies.

Main Methods:

  • Literature review examining current research on immune aging.
  • Analysis of the impact of immune system alterations on systemic aging processes.

Main Results:

  • Immune aging is characterized by stem cell decline and altered immune cell function.
  • The aged immune system promotes chronic inflammation and disrupts tissue balance, accelerating aging.

Conclusions:

  • The immune system is central to organismal aging and age-related diseases.
  • Therapeutic interventions targeting immune function hold promise for mitigating aging pathologies.