Plasma leptin levels and coronary artery calcification in older adults

Carlos Iribarren, Gail Husson, Alan S. Go, Joan C. Lo, Joan M. Fair, Geoffrey D. Rubin, Mark A. Hlatky, Stephen P. Fortmann

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Context: Leptin is associated with adiposity and insulin resistance and may play a direct role in vascular calcification. It is unclear, however, whether leptin is an independent predictor of atherosclerotic burden. Objective: The aim of this study was to examine the association between plasma leptin and coronary artery calcification (CAC) in an ethnically diverse cohort of older adult men and women free of clinical cardiovascular disease. Design: This was a cross-sectional study with data collection between January 2002 and February 2004 as part of the ADVANCE Study. Setting: The study was conducted at an integrated health care delivery system in Northern California. Participants: Participants included 949 men and women aged 60-69 yr old. Interventions: There were no interventions. Main Outcome Measure: The main outcome measure was CAC by multidetector row computed tomography. Results: In ordinal logistic regression, plasma leptin levels were positively associated with extent of CAC independently of age, race/ ethnicity, and smoking status in women (odds ratio of higher CAC for the sex-specific upper tertile vs. lower tertile = 1.81; 95% confidence interval, 1.10-3.00) but not in men (odds ratio = 1.29; 95% confidence interval = 0.89-1.86). However, this association was explained by metabolic risk factors and adiposity measures. Conclusions: Our findings support a role of leptin on vascular calcification in women but, in our sample of older adults, the association between leptin and CAC was not independent of other cardiac risk factors.

Original languageEnglish (US)
Pages (from-to)729-732
Number of pages4
JournalJournal of Clinical Endocrinology and Metabolism
Volume92
Issue number2
DOIs
StatePublished - Feb 2007
Externally publishedYes

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Biochemistry
  • Endocrinology
  • Clinical Biochemistry
  • Biochemistry, medical

Fingerprint

Dive into the research topics of 'Plasma leptin levels and coronary artery calcification in older adults'. Together they form a unique fingerprint.

Cite this