PMID- 24673112 OWN - NLM STAT- MEDLINE DCOM- 20141230 LR - 20151119 IS - 1365-2362 (Electronic) IS - 0014-2972 (Linking) VI - 44 IP - 6 DP - 2014 Jun TI - Impaired resolution of inflammation in human chronic heart failure. PG - 527-38 LID - 10.1111/eci.12265 [doi] AB - BACKGROUND: Lipoxins (LXs) are proresolving and anti-inflammatory eicosanoids whose role in chronic heart failure (CHF) pathogenesis has never been investigated. This study evaluated levels of LXs in CHF patients, its relationship with disease severity and correlation with established CHF biomarkers. The effect of low-dose aspirin [acetylsalicylic acid (ASA)] on the levels of LXs was also studied. MATERIALS AND METHODS: Lipoxin A4 (LXA4 ), 15-epi-lipoxin A4 (15-epi-LXA4 ) and myeloperoxidase (MPO) concentration and activity were evaluated by immunoenzymatic and spectrophotometric assays in 34 CHF patients [New York Heart Association (NYHA) functional class I to IV]. B-type natriuretic peptide (BNP), troponin, myoglobin, C-reactive protein (CRP) and uric acid (UA) were also analyzed. RESULTS: Patients were stratified into mild-to-moderate CHF (NYHA, classes I and II) and severe CHF (NYHA classes III and IV). Severe patients had lower plasma LXA4 (0.262 +/- 0.034 vs. 0.362 +/- 0.039 ng/mL, P < 0.05) and decreased urinary 15-epi-LXA4 levels (2.28 +/- 0.44 vs. 4.88 +/- 1.03 mug/day, P < 0.05) besides exhibiting increased plasma BNP (1464 +/- 442 vs. 555 +/- 162 pg/mL, P < 0.05) and MPO activity (45.15 +/- 11.56 vs. 15.90 +/- 2.80 mumol/min/mg protein, P < 0.05). Plasma LXA4 was inversely correlated with BNP, troponin, myoglobin, CRP, UA and MPO activity. ASA treatment was associated with higher urinary excretion of 15-epi-LXA4 (7.70 +/- 1.48 vs. 2.06 +/- 0.30 mug/day, P < 0.05) in mild-to-moderate CHF patients and lower BNP levels in both groups. CONCLUSIONS: Higher severity of CHF is associated with reduced levels of LXs. Plasma LXA4 appears to be a valuable marker for risk stratification in CHF. Furthermore, the ASA-related increase in urinary 15-epi-LXA4 suggests enhanced renal synthesis of this eicosanoid and may represent a disregarded benefit of ASA. CI - (c) 2014 Stichting European Society for Clinical Investigation Journal Foundation. FAU - Reina-Couto, Marta AU - Reina-Couto M AD - Departamento de Farmacologia e Terapeutica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal; MedInUP - Centro de Investigacao Farmacologica e Inovacao Medicamentosa, Universidade do Porto, Porto, Portugal; Departamento de Medicina Interna, Centro Hospitalar Sao Joao, Porto, Portugal. FAU - Carvalho, Jorge AU - Carvalho J FAU - Valente, Maria Joao AU - Valente MJ FAU - Vale, Luis AU - Vale L FAU - Afonso, Joana AU - Afonso J FAU - Carvalho, Felix AU - Carvalho F FAU - Bettencourt, Paulo AU - Bettencourt P FAU - Sousa, Teresa AU - Sousa T FAU - Albino-Teixeira, Antonio AU - Albino-Teixeira A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140422 PL - England TA - Eur J Clin Invest JT - European journal of clinical investigation JID - 0245331 RN - 0 (Anti-Inflammatory Agents, Non-Steroidal) RN - 0 (Biomarkers) RN - 0 (Lipoxins) RN - 0 (lipoxin A4) RN - EC 1.11.1.7 (Peroxidase) RN - R16CO5Y76E (Aspirin) SB - IM MH - Aged MH - Anti-Inflammatory Agents, Non-Steroidal/administration & dosage/pharmacology MH - Aspirin/administration & dosage/pharmacology MH - Biomarkers/metabolism MH - Cardiovascular Diseases/etiology MH - Chronic Disease MH - Female MH - Glomerular Filtration Rate/physiology MH - Heart Failure/*etiology MH - Humans MH - Inflammation/physiopathology MH - Leukocyte Count MH - Lipoxins/*metabolism MH - Male MH - Peroxidase/metabolism MH - Risk Factors OTO - NOTNLM OT - Aspirin OT - biomarkers OT - chronic heart failure OT - lipoxins OT - resolution of inflammation EDAT- 2014/03/29 06:00 MHDA- 2014/12/31 06:00 CRDT- 2014/03/29 06:00 PHST- 2014/01/10 00:00 [received] PHST- 2014/03/25 00:00 [accepted] PHST- 2014/03/29 06:00 [entrez] PHST- 2014/03/29 06:00 [pubmed] PHST- 2014/12/31 06:00 [medline] AID - 10.1111/eci.12265 [doi] PST - ppublish SO - Eur J Clin Invest. 2014 Jun;44(6):527-38. doi: 10.1111/eci.12265. Epub 2014 Apr 22.