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Immune status evaluation of patients with chronic heart failure

Pavlos M Myrianthefs1, Nikolaos Lazaris, Kyriaki Venetsanou

  • 1Athens University School of Nursing ICU at KAT General Hospital, Kifissia, Athens, Greece. pmiriant@nurs.uoa.gr

Cytokine
|April 25, 2007
PubMed

Insights

Chronic heart failure patients exhibit both pro- and anti-inflammatory states, with altered cytokine production. This immune imbalance may worsen heart function and outcomes during infections.

Area of Science:

  • Immunology
  • Cardiology
  • Biochemistry

Background:

  • Chronic heart failure (CHF) is associated with immune activation and inflammation.
  • Cytokines play a crucial role in inflammatory processes and disease progression.

Purpose of the Study:

  • To compare the immune status of patients with CHF to healthy individuals.
  • To investigate serum cytokine levels and ex vivo cytokine production in response to lipopolysaccharide (LPS).

Main Methods:

  • Serum cytokine levels were measured in 14 CHF patients and 14 healthy volunteers.
  • Whole blood samples were stimulated ex vivo with LPS (500 pg/ml) for 4 hours.
  • Levels of TNF-RI, TNF-RII, TNF-alpha, IL-6, and IL-10 were quantified.

Main Results:

  • CHF patients had higher serum levels of TNF-RI and TNF-RII compared to controls.
  • After LPS stimulation, CHF patients showed higher TNF-alpha and IL-10, but lower IL-6 production.
  • Endotoxin tolerance was not observed in CHF patients ex vivo.

Conclusions:

  • Patients with CHF may exist in a dual pro- and anti-inflammatory state.
  • Altered cytokine profiles, particularly increased TNF-alpha and IL-10 production, could contribute to disease severity and poorer outcomes in infections.

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