title: Circulating levels of the vasoactive peptide urotensin II in patients with acute coronary syndrome and stable coronary artery disease.
abstract: Urotensin II (UII) is a vasoactive peptide with various roles in cardiovascular physiology and pathophysiology. There is an accumulating evidence implicating UII in atherosclerosis and coronary artery disease, making it an important target in acute coronary syndrome (ACS). In this study, we sought to determine the plasma levels of UII in ACS patients within 48 h of clinical presentation and after a 12-week recovery period. We compared them to patients with stable coronary artery disease (CAD) and a control group of normolipidemic subjects without known CAD. Using a highly sensitive ELISA technique, we measured plasma UII in 27 ACS patients, 26 stable CAD patients and 22 age-matched controls. ACS patients had significantly elevated plasma UII during the first 48 h of clinical presentation compared to stable CAD patients and controls. We also found significant positive correlations between UII and CRP and with triglycerides and a significant negative correlation between UII and EF. There was no correlation with LDL-C. In conclusion, plasma UII levels were elevated in patients with acute coronary syndrome, particularly immediately after clinical presentation. This suggests an upregulation of UII expression in ACS.
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
authors.forename: Hamood
authors.initials: H
authors.lastname: Al Kindi
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
authors.forename: Anouar
authors.initials: A
authors.lastname: Hafiane
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: You
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
authors.forename: Isabella
authors.initials: I
authors.lastname: Albanese
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
authors.forename: Louise
authors.initials: L
authors.lastname: Pilote
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
authors.forename: Jacques
authors.initials: J
authors.lastname: Genest
authors.affiliation: Division of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada. Electronic address: adel.schwertani@mcgill.ca.
authors.forename: Adel
authors.initials: A
authors.lastname: Schwertani
mesh_terms: D054058:Acute Coronary Syndrome / Q000097:blood*; D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D016022:Case-Control Studies; D003324:Coronary Artery Disease / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014280:Triglycerides / Q000097:blood; D014579:Urotensins / Q000097:blood*
chemical_list: D015415:Biomarkers; D014280:Triglycerides; D014579:Urotensins; C029677:urotensin II
keywords: Acute coronary syndrome; CRP; Coronary artery disease; Ejection fraction; Plasma; Triglycerides; Troponin; UII; URP; UT; Urotensin II; Urotensin II-related peptide