PMID- 17932131 OWN - NLM STAT- MEDLINE DCOM- 20080310 LR - 20190722 IS - 0009-9147 (Print) IS - 0009-9147 (Linking) VI - 53 IP - 12 DP - 2007 Dec TI - Risk stratification for heart failure and death in an acute coronary syndrome population using inflammatory cytokines and N-terminal pro-brain natriuretic peptide. PG - 2112-8 AB - BACKGROUND: Inflammation in acute coronary syndrome (ACS) can identify those at greater long-term risks for heart failure (HF) and death. The present study assessed the performance of interleukin (IL)-6, IL-8, and monocyte chemoattractant protein-1 (MCP-1) (cytokines involved in the activation and recruitment of leukocytes) in addition to known biomarkers [e.g., N-terminal pro-brain natriuretic peptide (NT-proBNP)] for predicting HF and death in an ACS population. METHODS: In a cohort of 216 ACS patients, NT-proBNP (Elecsys; Roche) and IL-6, IL-8, and MCP-1 (evidence investigator; Randox) were measured in serial specimens collected early after symptom onset (n = 723). We collected at least 2 specimens from each participant: an early specimen (median 2 h; interquartile range 2-4 h) and a later specimen (9 h; 9-9 h), and used the later specimens' biomarker concentrations for risk stratification. RESULTS: An increase in both IL-6 and NT-proBNP was observed but not for IL-8 or MCP-1 early after pain onset. Kaplan-Meier analysis demonstrated that individuals with increased NT-proBNP (>183 ng/L) or cytokines (IL-6 > 6.4 ng/L; above upper limit of normal for IL-8 or MCP-1) had a greater probability of death or HF in the following 8 years (P <0.05). In a Cox proportional hazard model adjusted for both CRP and troponin I, increased IL-6, MCP-1, and NT-proBNP remained significant risk factors. Combining all 3 biomarkers resulted in a higher likelihood ratio for death or HF than models restricted to any 2 of these biomarkers. CONCLUSION: IL-6, MCP-1, and NT-proBNP are independent predictors of long-term risk of death or HF, highlighting the importance of identifying leukocyte activation and recruitment in ACS patients. FAU - Kavsak, Peter A AU - Kavsak PA AD - Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada. kavsakp@mcmaster.ca FAU - Ko, Dennis T AU - Ko DT FAU - Newman, Alice M AU - Newman AM FAU - Palomaki, Glenn E AU - Palomaki GE FAU - Lustig, Viliam AU - Lustig V FAU - MacRae, Andrew R AU - MacRae AR FAU - Jaffe, Allan S AU - Jaffe AS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071011 PL - England TA - Clin Chem JT - Clinical chemistry JID - 9421549 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-6) RN - 0 (Interleukin-8) RN - 0 (Peptide Fragments) RN - 0 (pro-brain natriuretic peptide (1-76)) RN - 114471-18-0 (Natriuretic Peptide, Brain) SB - IM MH - Acute Coronary Syndrome/*diagnosis/immunology/mortality MH - Aged MH - Chemokine CCL2/*blood MH - Female MH - Heart Failure/*diagnosis/immunology/mortality MH - Humans MH - Inflammation/metabolism MH - Interleukin-6/*blood MH - Interleukin-8/*blood MH - Leukocytes/immunology MH - Male MH - Middle Aged MH - Natriuretic Peptide, Brain/*blood MH - Peptide Fragments/*blood MH - Predictive Value of Tests MH - Retrospective Studies MH - Risk Factors EDAT- 2007/10/13 09:00 MHDA- 2008/03/11 09:00 CRDT- 2007/10/13 09:00 PHST- 2007/10/13 09:00 [pubmed] PHST- 2008/03/11 09:00 [medline] PHST- 2007/10/13 09:00 [entrez] AID - clinchem.2007.090613 [pii] AID - 10.1373/clinchem.2007.090613 [doi] PST - ppublish SO - Clin Chem. 2007 Dec;53(12):2112-8. doi: 10.1373/clinchem.2007.090613. Epub 2007 Oct 11.