© 2001 by European Society of Cardiology
Copyright © 2001, European Society of Cardiology
Continuing insights into the heart as an endocrine organ: adrenomedullin and cardiac fibroblasts
Cardiorenal Research Laboratory, Division of Cardiovascular Diseases, Mayo Clinic and Foundation, Rochester, MN 55905, USA
* Corresponding author. Tel.: +1-507-284-4838; fax: +1-507-266-4710 jougasaki@mayo.edu
Received 27 December 2000; accepted 28 December 2000
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See article by Tomoda et al. [15] (pages 721–730) in this issue.
In 1993, Kitamura et al. [1] discovered a novel hypotensive peptide in human pheochromocytoma by means of monitoring the ability of extracted fractions to increase platelet cyclic adenosine 3',5'-monophosphate (cAMP), which they named adrenomedullin. Human adrenomedullin consists of 52 amino acids and has an intramolecular disulfide bond and C-terminal amide structure, which shows 27% homology with calcitonin gene related peptide (CGRP), suggesting that adrenomedullin belongs to the CGRP superfamily. Adrenomedullin immunoreactivity and its gene expression are