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Plasma levels of copeptin in patients with coronary heart disease

San Bao Chai1, Yong Ming Hui, Xue Min Li

  • 1Department of Cardiovascular Disease, Beijing Fengtai Hospital, Beijing, PR China. chaisb@126.com

Heart and Vessels
|April 2, 2009
PubMed

Insights

Plasma copeptin levels are elevated in coronary heart disease (CHD) patients and increase significantly after percutaneous transluminal coronary angioplasty (PTCA) and stent procedures. This suggests vasopressin system activation, indicating copeptin

Area of Science:

  • Cardiology
  • Endocrinology
  • Biomarkers

Background:

  • Coronary heart disease (CHD) is a significant global health concern.
  • The role of the vasopressin system in cardiovascular disease requires further elucidation.
  • Copeptin, a surrogate marker for vasopressin, may offer insights into disease activity.

Purpose of the Study:

  • To investigate alterations in plasma copeptin levels in patients with CHD.
  • To assess the impact of percutaneous transluminal coronary angioplasty (PTCA) and stent therapy on plasma copeptin.
  • To explore the potential of copeptin as a biomarker for CHD and therapeutic response.

Main Methods:

  • Plasma copeptin levels were measured using radioimmunoassay (RIA).
  • Study included 21 patients with CHD and 12 age-matched healthy controls.
  • Statistical analyses included Chi-square test, Student's t-test, ANOVA, and linear regression.

Main Results:

  • Significantly elevated plasma copeptin levels were observed in CHD patients compared to controls (43.07 ± 17.08 vs 11.13 ± 5.73 pmol/l, P < 0.01).
  • Copeptin levels increased by 60% one day post-PTCA and stent (68.71 ± 16.81 pmol/l, P < 0.05).
  • Levels decreased by days 3 and 7 but remained significantly higher than controls (P < 0.01).

Conclusions:

  • The vasopressin system is activated in patients with CHD, as indicated by elevated copeptin levels.
  • PTCA and stent therapy lead to a transient but significant increase in plasma copeptin.
  • Plasma copeptin activation may serve as a potential risk factor and indicator for early intervention in CHD.

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