Document Detail

Serum levels of γ-glutamyltransferase and progression of coronary atherosclerosis.
MedLine Citation:
PMID:  23187879     Owner:  NLM     Status:  Publisher    
BACKGROUND: Progression of coronary atherosclerosis (ATS) has clinical implications. Serum levels of γ-glutamyltransferase (GGT), a marker of oxidative stress, predict the risk of cardiovascular events. However, the role of GGT levels in the progression of coronary ATS has never been established. MATERIALS AND METHODS: Consecutive patients undergoing two coronary angiographies (CAs) separated by at least 6 months were prospectively enrolled between May 2008 and June 2010. All patients were discharged on statins after the first CA. The severity and extent of coronary ATS were graded according to Bogaty's score, and the variation ([INCREMENT]) in stenosis score and extent index between follow-up (S2 and E2) and basal values (S1 and E1) were calculated. Predictors of [INCREMENT]S2-1 and [INCREMENT]E2-1 were assessed among clinical and laboratory data, including GGT levels, analyzed as [INCREMENT] between follow-up and basal values ([INCREMENT]GGT2-1). RESULTS: We enrolled 100 consecutive patients (age 64±11 years, 68% men). Compliance with statin therapy was 100%. At multiple regression analysis, [INCREMENT]GGT2-1 was the only independent predictor of [INCREMENT]S2-1 (B=0.18, SE=0.07, P=0.05), with [INCREMENT]low-density lipoprotein-cholesterol2-1 levels being of borderline statistical significance (P=0.07). On multiple regression analysis, [INCREMENT]GGT2-1 was the only independent predictor of [INCREMENT]E2-1 (B=0.32; SE=0.11; P=0.04), with active smoking habit and [INCREMENT]fibrinogen2-1 levels being of borderline statistical significance (P=0.08 and 0.06, respectively). CONCLUSION: [INCREMENT]GGT2-1 is associated with angiographic coronary ATS progression in patients with ischemic heart disease on statin treatment, suggesting that oxidative stress may be another therapeutic target for preventing ATS progression beyond that of lipid-lowering therapies.
Giampaolo Niccoli; Roberta Della Bona; Nicola Cosentino; Domenico D'Amario; Flavia Belloni; Maria G Conti; Massimo Gustapane; Francesco Fracassi; Luigi M Biasucci; Elena Falcioni; Roberta Antonazzo Panico; Filippo Crea
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-25
Journal Detail:
Title:  Coronary artery disease     Volume:  -     ISSN:  1473-5830     ISO Abbreviation:  Coron. Artery Dis.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9011445     Medline TA:  Coron Artery Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Cardiovascular Medicine, Institute of Cardiology, Catholic University of the Sacred Heart, Rome, Italy.
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