Inhibition of FPR2 impaired leukocytes recruitment and elicited non-resolving inflammation in acute heart failure

Publication date: Available online 16 June 2019Source: Pharmacological ResearchAuthor(s): Vasundhara Kain, Jeevan Kumar Jadapalli, Bochra Tourki, Ganesh V. HaladeAbstractLifestyle or age-related risk factors over-activate the inflammation that triggers acute heart failure (HF)-related mortality following myocardial infarction (MI). Post-MI activated leukocytes express formyl peptide receptor 2 (FPR2) that is essential for inflammation-resolution and in cardiac healing. However, the role of FPR2 in acute HF is incomplete and remain of interest. Here, we aimed to determine whether pharmacological inhibition of FPR2 perturb leukocyte trafficking in acute HF. Male C57BL/6 (8–12 weeks) mice were subjected to acute HF (MI-d1) using permanent coronary artery ligation that develops irreversible acute and chronic heart failure. FPR2 antagonist WRW4 (1 µg/kg/day) was subcutaneously injected 3 h post-MI maintaining saline-injected MI-controls. Leukocytes were quantitated using flow cytometry, and acute decompensated HF was confirmed using echocardiography and histology. FPR2 inhibition decreased the expression of FPR2 in the LV and spleen tissues. Administration of WRW4 inhibitor to mice primed immature and inactive neutrophils infiltration Ly6Gint and intensified the Ccl2 expression compared to MI-control in the infarcted LV post-MI. Leukocyte profiling revealed an overall decrease in monocytes (23.3 ± 2%) in WRW4-injected mice compared wi...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research

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Abstract In 2016, the European Society of Cardiology (ESC) recognized heart failure (HF) with ejection fraction between 40 and 49% as a new HF phenotype, HF with mid-range ejection fraction (HFmrEF), with the main purpose of encouraging studies on this new category. In 2018, the Brazilian Society of Cardiology adhered to this classification and introduced HFmrEF in Brazil. This paper presents a narrative review of what the literature has described about HFmrEF. The prevalence of patients with HFmrEF ranged from 13 to 24% of patients with HF. Analyzing the clinical characteristics, HFmrEF shows intermediate characteristics ...
Source: Arquivos Brasileiros de Cardiologia - Category: Cardiology Source Type: research
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Source: Current Treatment Options in Cardiovascular Medicine - Category: Cardiology Source Type: research
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Source: American Heart Journal - Category: Cardiology Source Type: research
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Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: Medical Practice Patients aging chronic disease Denmark Diabetes William Bestermann Source Type: blogs
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Source: Disease Markers - Category: Laboratory Medicine Tags: Dis Markers Source Type: research
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Source: ESC Heart Failure - Category: Cardiology Authors: Tags: Case Report Source Type: research
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Source: Life Sciences - Category: Biology Source Type: research
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