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Inflammation and ageing.

U Müller-Werdan1

  • 1Universitätsklinik und Poliklinik für Innere Medizin III, Klinikum der Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Strasse 40, 06097, Halle, Germany. ursula.mueller-werdan@medizin.uni-halle.de

Zeitschrift Fur Gerontologie Und Geriatrie
|October 19, 2007
PubMed
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Increased lifelong inflammation, or "inflammatory/pathogen burden," contributes to cardiac aging in the elderly. This burden, influenced by immunosenescence and past infections, narrows heart rate variability, a marker of heart aging.

Area of Science:

  • Gerontology
  • Immunology
  • Cardiology

Background:

  • Elderly individuals exhibit an enhanced inflammatory state, termed "inflammatory/pathogen burden," due to physiological immunosenescence and accumulated infections ("multiple hits").
  • Immunosenescence can accelerate the aging process in various organs, including the heart.
  • Cardiac aging is often assessed by analyzing heart rate variability (HRV).

Purpose of the Study:

  • To propose a hypothesis linking the cumulative "inflammatory/pathogen burden" throughout an individual's life to the process of cardiac aging.
  • To explore the potential role of lifelong inflammatory experiences in the development of age-related cardiac dysfunction.

Main Methods:

  • The study presents a hypothesis based on existing knowledge of immunosenescence and cardiac aging.

Related Experiment Videos

  • It references experimental evidence showing that inflammatory stimuli, such as endotoxin, can experimentally induce a narrowed heart rate variability in humans.
  • This narrowed HRV is a known characteristic of cardiac aging.

    • Main Results:

    • The hypothesis posits that a growing "inflammatory/pathogen burden" over a lifetime significantly contributes to cardiac aging.
    • A narrowed heart rate variability, a hallmark of cardiac aging, can be induced by inflammatory challenges.

    Conclusions:

    • The cumulative "inflammatory/pathogen burden" is hypothesized to be a significant factor in cardiac aging.
    • Inflammation's impact on heart rate variability provides a mechanistic link supporting this hypothesis.
    • Further research is warranted to validate the direct causal relationship between lifelong inflammatory burden and cardiac aging.