Relations of measures of endothelial function and kidney disease: the Framingham Heart Study

Am J Kidney Dis. 2008 Nov;52(5):859-67. doi: 10.1053/j.ajkd.2008.04.027. Epub 2008 Jul 9.


Background: Endothelial dysfunction is prevalent in individuals with end-stage renal disease. Whether endothelial dysfunction is present in patients with moderate chronic kidney disease (CKD) is uncertain.

Study design: Cross-sectional study.

Settings & participants: Brachial reactivity measurements were obtained during the seventh examination cycle in 2,818 (diameter measurements) and 2,256 (flow measurements) Framingham Heart Study Offspring cohort participants (53% women; mean age, 61 +/- 9 years).

Predictor: Estimated glomerular filtration rate less than 60 mL/min/1.73 m(2) derived from creatinine- and cystatin C-based estimating equations; microalbuminuria status.

Outcome: Brachial reactivity measurements (baseline brachial diameter, flow-mediated dilation, baseline and hyperemic mean flow).

Measurements: Linear regression models were used to model brachial measures as a function of CKD and microalbuminuria status.

Results: Overall, 7.3% (n = 206) of participants had CKD, and of 2,301 with urinary measurements, 10.0% (n = 230) had microalbuminuria. Brachial reactivity measures did not differ significantly by CKD status in either creatinine- or cystatin C-based equations in either age- and sex- or multivariable-adjusted models. In age- and sex-adjusted models, microalbuminuria was associated with decreased hyperemic mean flow (47.2 +/- 1.4 versus 51.4 +/- 0.5 mg/g; P = 0.005), but the association was not significant after multivariable adjustment (P = 0.09).

Limitations: Predominantly white ambulatory cohort; results may not be generalizable to other ethnic groups or individuals with severe CKD.

Conclusions: Endothelial dysfunction was not a major correlate of CKD in our sample.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Cross-Sectional Studies
  • Endothelium, Vascular / physiopathology*
  • Female
  • Humans
  • Kidney Diseases / physiopathology*
  • Male
  • Middle Aged