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Related Experiment Videos

[The immune system in aging].

K H Ibs1, L Rink

  • 1Institut für Immunologie Universitätsklinikum RWTH Aachen Pauwelsstrasse 30 52074 Aachen.

Zeitschrift Fur Gerontologie Und Geriatrie
|February 7, 2002
PubMed
Summary
This summary is machine-generated.

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Aging immune systems show significant changes, with increases in neutrophils and natural killer (NK) cells, but declines in T- and B-lymphocytes. Immunoglobulin levels rise, and the balance of immune signaling (cytokines) is disrupted in healthy elderly individuals.

Area of Science:

  • Immunology
  • Gerontology

Context:

  • Immune system function naturally changes throughout a lifetime.
  • The SENIEUR protocol identifies healthy elderly individuals, excluding those with chronic illnesses.

Purpose:

  • To review age-related alterations in the immune system of healthy elderly individuals.
  • To focus on changes in lymphocyte subsets, immunoglobulins, and the cytokine network.

Summary:

  • Monocytes, eosinophils, and basophils remain stable with age.
  • Neutrophil and natural killer (NK) cell counts increase in aging.
  • T- and B-lymphocyte numbers and functions decrease; serum immunoglobulin levels generally increase.
  • The balance of T-helper 1 (TH1) and T-helper 2 (TH2) cells and their associated cytokines is disturbed.

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Impact:

  • Understanding these immune shifts is crucial for assessing the health status of the elderly.
  • These age-associated immune changes can affect overall health and susceptibility to disease in older populations.