Phobic Anxiety Is Associated With Higher Serum Concentrations of Adipokines and Cytokines in Women With Diabetes

  1. Aoife M. Brennan, MD1,
  2. Jessica L. Fargnoli1,
  3. Catherine J. Williams, MPH1,
  4. Tricia Li, MPH2,
  5. Walter Willett, MD, DRPH2,3,4,
  6. I. Kawachi, PHD3,
  7. Lu Qi, MD, PHD2,4,
  8. Frank B. Hu, MD, PHD2,3,4 and
  9. Christos S. Mantzoros, MD1
  1. 1Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts;
  2. 2Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts;
  3. 3Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts;
  4. 4Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
  1. Corresponding author: Christos Mantzoros, cmantzor{at}bidmc.harvard.edu

Abstract

OBJECTIVE Phobic anxiety has been associated with increased risk of cardiovascular disease (CVD), but the underlying mechanisms are poorly understood. We aimed to determine whether associations of phobic anxiety with several known markers of CVD might be contributors.

RESEARCH DESIGN AND METHODS We used a 16-point validated index (Crown-Crisp) measured in 1988 to categorize 984 women with type 2 diabetes from the Nurses' Health Study as having low, moderate, or high phobic anxiety. Groups were then compared for differences in adipokines (adiponectin and leptin), inflammatory markers (C-reactive protein and tumor necrosis factor [TNF]-α receptor II), and markers of endothelial function (sE-selectin, soluble intercellular adhesion molecule [sICAM]-1) measured on blood samples provided between 1989 and 1990.

RESULTS Higher levels of phobic anxiety were associated with higher BMI and lower education. Higher levels of phobic anxiety were also associated with higher leptin and soluble TNF-α receptor II in both crude analyses and after adjustment for potential confounders. sICAM and sE-selectin were higher in the highest tertile compared with the middle tertile, but there was no significant trend across tertiles. We found no association between phobic anxiety and adiponectin.

CONCLUSIONS High levels of phobic anxiety are associated with increased levels of leptin and inflammatory markers, which may in part explain the previously observed relationship between anxiety and other psychosocial disorders with CVD.

Footnotes

  • The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked “advertisement” in accordance with 18 U.S.C. Section 1734 solely to indicate this fact.

    • Received November 3, 2008.
    • Accepted February 2, 2009.
  • Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. See http://creativecommons.org/licenses/by-nc-nd/3.0/ for details.

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  1. Diabetes Care vol. 32 no. 5 926-931
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