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Related Experiment Videos

Kidney dysfunction, inflammation, and coronary events: a prospective study.

Eric L Knight1, Eric B Rimm, Jennifer K Pai

  • 1Channing Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.

Journal of the American Society of Nephrology : JASN
|June 24, 2004
PubMed
Summary

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Reduced kidney function increases coronary event risk, potentially mediated by inflammation. Higher levels of inflammatory markers like hs-CRP and sTNFRs are linked to coronary events specifically in women with impaired kidney function.

Area of Science:

  • Cardiovascular Disease Epidemiology
  • Nephrology
  • Inflammation Research

Background:

  • Kidney dysfunction and elevated C-reactive protein (CRP) are independent risk factors for coronary events.
  • The interplay between kidney function, inflammation, and coronary event risk remains incompletely understood.

Purpose of the Study:

  • To investigate if inflammation mediates the association between reduced kidney function and coronary events.
  • To determine if kidney function level influences the relationship between inflammatory biomarkers and coronary events.

Main Methods:

  • A prospective, nested case-control study design was employed.
  • Participants were women from the Nurses' Health Study, with incident coronary events (1990-1998) matched to controls.
  • Serum creatinine and inflammatory biomarkers were measured; creatinine clearance (CrCl) was estimated.

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Main Results:

  • Women with estimated CrCl <60 ml/min had a significantly higher odds ratio (OR) for coronary events (OR=2.33).
  • Soluble tumor necrosis factor receptor (sTNFR) I and II levels attenuated the OR for coronary events in women with CrCl <60 ml/min.
  • Higher levels of high-sensitivity CRP (hs-CRP), IL-6, and sTNFR I and II were associated with increased coronary event odds only in women with estimated CrCl ≤74 ml/min.

Conclusions:

  • Kidney dysfunction is associated with increased odds of coronary events, with inflammation potentially mediating part of this risk.
  • Elevated inflammatory biomarkers (hs-CRP, IL-6, sTNFR I/II) are significantly linked to coronary events primarily in women with reduced kidney function.
  • These findings highlight the critical role of inflammation in the cardiovascular risk associated with kidney dysfunction.