PMID- 22075154 OWN - NLM STAT- MEDLINE DCOM- 20120223 LR - 20151119 IS - 1532-2165 (Electronic) IS - 1078-5884 (Linking) VI - 43 IP - 2 DP - 2012 Feb TI - Circulating lipoprotein-associated phospholipase A2 in high-grade carotid stenosis: a new biomarker for predicting unstable plaque. PG - 154-9 LID - 10.1016/j.ejvs.2011.10.009 [doi] AB - OBJECTIVE: To test plasma levels of lipoprotein-associated phospholipase A2 (Lp-PLA2) in patients with high-grade carotid stenosis according to plaque histology. METHODS: This cross-sectional single-centre study included patients with >/=70% North American Symptomatic Carotid Endarterectomy Trial (NASCET) carotid stenosis, who were treated surgically. Serum Lp-PLA2 and high-sensitivity C-reactive protein (hs-CRP) were determined on the day of surgery. Histopathological analysis classified carotid plaque as stable or unstable, according to AHA classification. RESULTS: Of the 42 patients (mean age 70.4 +/- 10.5 years; 67% men), neurological symptoms were present in 16 (38%). Unstable plaques were found in 23 (55%). Median plasma level of Lp-PLA2 was significantly higher in patients with unstable plaque compared to those with stable plaque (222.4 (174.9-437.5) interquartile range (IQR) 63.5 vs. 211.1 (174.9-270.6) IQR 37.2 ng ml(-1); p = 0.02). Moreover, median Lp-PLA2 level were higher in asymptomatic patients with unstable plaque (226.8 ng ml(-1) (174.9-437.5) IQR 76.8) vs. stable plaque (206.9 ng ml(-1) (174.9-270.6) IQR 33.7; p = 0.16). Logistic regression showed that only the neurological symptoms (OR = 30.9 (3.7-244.6); p < 0.001) and the plasma Lp-PLA2 level (OR = 1.7 (1.1-12.3); p = 0.03) were independently associated with unstable carotid plaque as defined by histology. CONCLUSIONS: This study showed that circulating Lp-PLA2 was increased in patients with high-grade carotid stenosis and unstable plaque. Lp-PLA2 may be a relevant biomarker to guide for invasive therapy in asymptomatic patients with carotid artery disease. CI - Copyright (c) 2011 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved. FAU - Sarlon-Bartoli, G AU - Sarlon-Bartoli G AD - Service de Chirurgie Vasculaire, Faculte de Medecine de Marseille, Universite de la Mediterranee, Assistance Publique Hopitaux de Marseille-Hopital de la Timone, 13005 Marseille, France. gabrielle.sarlon@ap-hm.fr FAU - Boudes, A AU - Boudes A FAU - Buffat, C AU - Buffat C FAU - Bartoli, M A AU - Bartoli MA FAU - Piercecchi-Marti, M D AU - Piercecchi-Marti MD FAU - Sarlon, E AU - Sarlon E FAU - Arnaud, L AU - Arnaud L FAU - Bennis, Y AU - Bennis Y FAU - Thevenin, B AU - Thevenin B FAU - Squarcioni, C AU - Squarcioni C FAU - Nicoli, F AU - Nicoli F FAU - Dignat-George, F AU - Dignat-George F FAU - Sabatier, F AU - Sabatier F FAU - Magnan, P E AU - Magnan PE CN - RISC Study Group LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111109 PL - England TA - Eur J Vasc Endovasc Surg JT - European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery JID - 9512728 RN - 0 (Biomarkers) RN - 9007-41-4 (C-Reactive Protein) RN - EC 3.1.1.47 (1-Alkyl-2-acetylglycerophosphocholine Esterase) SB - IM CIN - Eur J Vasc Endovasc Surg. 2012 Feb;43(2):160. PMID: 22119229 MH - 1-Alkyl-2-acetylglycerophosphocholine Esterase/*blood MH - Aged MH - Aged, 80 and over MH - Biomarkers/*blood MH - C-Reactive Protein/metabolism MH - Carotid Stenosis/*enzymology MH - Cross-Sectional Studies MH - Endarterectomy, Carotid MH - Female MH - Humans MH - Male MH - Middle Aged MH - Nervous System Diseases/complications MH - Prospective Studies EDAT- 2011/11/15 06:00 MHDA- 2012/02/24 06:00 CRDT- 2011/11/15 06:00 PHST- 2011/06/07 00:00 [received] PHST- 2011/10/10 00:00 [accepted] PHST- 2011/11/15 06:00 [entrez] PHST- 2011/11/15 06:00 [pubmed] PHST- 2012/02/24 06:00 [medline] AID - S1078-5884(11)00676-9 [pii] AID - 10.1016/j.ejvs.2011.10.009 [doi] PST - ppublish SO - Eur J Vasc Endovasc Surg. 2012 Feb;43(2):154-9. doi: 10.1016/j.ejvs.2011.10.009. Epub 2011 Nov 9.