Endogenous bradykinin and B1-B5 during angiotensin-converting enzyme inhibitor-associated angioedema

J Allergy Clin Immunol. 2018 Nov;142(5):1636-1639.e5. doi: 10.1016/j.jaci.2018.06.037. Epub 2018 Jul 21.

Abstract

Bradykinin concentrations and the ratio of bradykinin to its stable metabolite BK1–5 (RPPGF) were significantly increased in patients presenting with angiotensin-converting enzyme (ACE) inhibitor-associated angioedema compared to ACE inhibitor-treated controls. Cleavage of high molecular weight kininogen was not increased in patients with ACE inhibitor-associated angioedema, indicating that increased bradykinin concentrations result from decreased degradation.

Publication types

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

MeSH terms

  • Aged
  • Angioedema / blood*
  • Angioedema / chemically induced*
  • Angiotensin-Converting Enzyme Inhibitors / adverse effects*
  • Bradykinin / blood*
  • Enalapril / adverse effects
  • Female
  • Humans
  • Kininogen, High-Molecular-Weight / blood
  • Lisinopril / adverse effects
  • Male
  • Middle Aged
  • Peptide Fragments / blood*
  • Quinapril / adverse effects

Substances

  • Angiotensin-Converting Enzyme Inhibitors
  • Kininogen, High-Molecular-Weight
  • Peptide Fragments
  • bradykinin (1-5)
  • Enalapril
  • Lisinopril
  • Quinapril
  • Bradykinin