PMID- 24391310 OWN - NLM STAT- MEDLINE DCOM- 20141014 LR - 20211021 IS - 1526-6702 (Electronic) IS - 0730-2347 (Print) IS - 0730-2347 (Linking) VI - 40 IP - 5 DP - 2013 TI - Induction of early biomarkers in a thrombus-induced sheep model of ischemic heart failure. PG - 511-20 AB - The levels of brain natriuretic peptide (BNP) and monocyte chemoattractant protein-1 (MCP-1) are known to be increased in the sera of subjects with heart failure. Existing models do not account for the biomass of thrombus that occurs in patients undergoing myocardial infarction. In this study, we compared the expressions of sheep-derived genes for BNP, MCP-1, and atrial natriuretic peptide in a new large-animal model of thrombus-induced heart failure. Thrombus of autologous platelets was injected directly into the left circumflex coronary arteries of sheep. Cardiac ischemic injury was evaluated by troponin I levels, and heart failure progression was monitored with the aid of echocardiogram-based evaluation. After outlined time intervals, the sheep were killed and their hearts excised for tissue sampling. Reverse transcription polymerase chain reaction, Western blot, and enzyme-linked immunosorbent assay (ELISA) tests were performed to establish gene and protein expressions. At 72 hours after embolization, myocardial BNP and MCP-1 expressions had increased significantly in the ischemic region, compared either with the nonischemic region or with tissue from healthy sheep. As heart failure progressed to 90 days after embolization, the expression of BNP in the ischemic region decreased, whereas its expression in the nonischemic region increased several fold. In contrast, MCP-1 gene expression showed no changes in either tissue after 90 days of embolization. Plasma levels of BNP, determined by Western blot and ELISA, also correlated with the gene-expression studies. Our results show regional changes in BNP and MCP-1, as well as differences in the expression of these 2 genes. FAU - Chandrakala, Aluganti N AU - Chandrakala AN AD - Division of Cardiac Surgery, Department of Surgery, The Ohio State University Medical Center, Columbus, Ohio 43210. FAU - Kwiatkowski, Pawel AU - Kwiatkowski P AD - Division of Cardiac Surgery, Department of Surgery, The Ohio State University Medical Center, Columbus, Ohio 43210. FAU - Sai-Sudhakar, Chittoor B AU - Sai-Sudhakar CB AD - Division of Cardiac Surgery, Department of Surgery, The Ohio State University Medical Center, Columbus, Ohio 43210. FAU - Sun, Benjamin AU - Sun B AD - Division of Cardiac Surgery, Department of Surgery, The Ohio State University Medical Center, Columbus, Ohio 43210. FAU - Phillips, Angela AU - Phillips A AD - Division of Cardiac Surgery, Department of Surgery, The Ohio State University Medical Center, Columbus, Ohio 43210. FAU - Parthasarathy, Sampath AU - Parthasarathy S AD - Division of Cardiac Surgery, Department of Surgery, The Ohio State University Medical Center, Columbus, Ohio 43210. LA - eng PT - Journal Article PL - United States TA - Tex Heart Inst J JT - Texas Heart Institute journal JID - 8214622 RN - 0 (Biomarkers) RN - 0 (Chemokine CCL2) RN - 0 (RNA, Messenger) RN - 114471-18-0 (Natriuretic Peptide, Brain) SB - IM MH - Animals MH - Biomarkers/*blood MH - Blotting, Western MH - Chemokine CCL2/blood/genetics MH - Coronary Thrombosis/*blood/complications/genetics MH - Disease Models, Animal MH - Disease Progression MH - Enzyme-Linked Immunosorbent Assay MH - Follow-Up Studies MH - Gene Expression Regulation MH - Heart Failure/*blood/etiology/genetics MH - Natriuretic Peptide, Brain/blood/genetics MH - RNA, Messenger/genetics MH - Reverse Transcriptase Polymerase Chain Reaction MH - Sheep, Domestic MH - Time Factors PMC - PMC3853808 OTO - NOTNLM OT - Atrial natriuretic peptide OT - C-reactive protein OT - biological markers/blood OT - blood platelets OT - brain OT - chemokines/blood OT - disease models/animal OT - heart failure OT - monocyte chemoattractant protein-1/blood OT - myocardial ischemia OT - natriuretic peptide OT - sheep OT - stroke volume OT - ventricular dysfunction, left/etiology EDAT- 2014/01/07 06:00 MHDA- 2014/10/15 06:00 PMCR- 2013/01/01 CRDT- 2014/01/07 06:00 PHST- 2014/01/07 06:00 [entrez] PHST- 2014/01/07 06:00 [pubmed] PHST- 2014/10/15 06:00 [medline] PHST- 2013/01/01 00:00 [pmc-release] AID - 0010801-201312000-00004 [pii] PST - ppublish SO - Tex Heart Inst J. 2013;40(5):511-20.