Plasma renin and risk of cardiovascular disease and mortality: the Framingham Heart Study

Nisha I Parikh1, Philimon Gona, Martin G Larson

  • 1Framingham Heart Study, Boston University School of Medicine, 73 Mount Wayte Avenue, Suite 2, Framingham, MA 01702-5803, USA.

European Heart Journal
|September 27, 2007
PubMed

Insights

Higher plasma renin levels are linked to increased short-term mortality risk, particularly in hypertensive individuals. This study found no association between plasma renin and the incidence of cardiovascular disease (CVD) in the community.

Area of Science:

  • Cardiovascular Medicine
  • Endocrinology
  • Epidemiology

Background:

  • Conflicting previous study results highlight the need for further investigation into the relationship between plasma renin and cardiovascular outcomes.
  • The renin-angiotensin-aldosterone system plays a crucial role in blood pressure regulation and cardiovascular homeostasis.

Purpose of the Study:

  • To investigate the association between plasma renin levels and the incidence of cardiovascular disease (CVD) and all-cause mortality.
  • To examine these associations in a general population sample and a subset of hypertensive individuals.

Main Methods:

  • A cohort study involving 3408 participants (mean age 59 years, 53% women) with a hypertensive subset of 1413 individuals.
  • Plasma renin levels were measured, and participants were followed for a mean of 7.1 years for CVD incidence and mortality.
  • Multivariable-adjusted hazard ratios (HR) were calculated to assess the relationship between log-renin and outcomes, with time-dependent analyses performed.

Main Results:

  • Overall, higher plasma renin was significantly associated with increased mortality risk (HR per SD increment: 1.14 in the whole sample, 1.16 in hypertensives).
  • This association was primarily driven by short-term mortality, with significant links observed at 2.5 years but not at 5 years of follow-up.
  • No significant association was found between plasma renin levels and the incidence of cardiovascular disease in either the general population or the hypertensive subset.

Conclusions:

  • Elevated plasma renin is associated with increased short-term mortality risk, especially in hypertensive individuals.
  • Plasma renin levels do not appear to be a significant predictor of cardiovascular disease incidence in the community.
  • Further research may be warranted to elucidate the mechanisms underlying the short-term mortality risk associated with higher plasma renin.
Abstract

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