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https://www.readbyqxmd.com/read/29769287/the-protective-role-of-macrophage-migration-inhibitory-factor-in-acute-kidney-injury-after-cardiac-surgery
#1
Christian Stoppe, Luisa Averdunk, Andreas Goetzenich, Josefin Soppert, Arnaud Marlier, Sandra Kraemer, Jil Vieten, Mark Coburn, Ana Kowark, Bong-Song Kim, Gernot Marx, Steffen Rex, Akinobu Ochi, Lin Leng, Gilbert Moeckel, Andreas Linkermann, Omar El Bounkari, Alexander Zarbock, Jürgen Bernhagen, Sonja Djudjaj, Richard Bucala, Peter Boor
Acute kidney injury (AKI) represents the most frequent complication after cardiac surgery. Macrophage migration inhibitory factor (MIF) is a stress-regulating cytokine that was shown to protect the heart from myocardial ischemia-reperfusion injury, but its role in the pathogenesis of AKI remains unknown. In an observational study, serum and urinary MIF was quantified in 60 patients scheduled for elective conventional cardiac surgery with the use of cardiopulmonary bypass. Cardiac surgery triggered an increase in MIF serum concentrations, and patients with high circulating MIF (>median) 12 hours after surgery had a significantly reduced risk of developing AKI (relative risk reduction, 72...
May 16, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29765083/adeno-associated-virus-vector-mediated-interleukin-10-induction-prevents-vascular-inflammation-in-a-murine-model-of-kawasaki-disease
#2
Jun Nakamura, Sachiko Watanabe, Hiroaki Kimura, Motoi Kobayashi, Tadayoshi Karasawa, Ryo Kamata, Fumitake Usui-Kawanishi, Ai Sadatomo, Hiroaki Mizukami, Noriko Nagi-Miura, Naohito Ohno, Tadashi Kasahara, Seiji Minota, Masafumi Takahashi
Kawasaki disease (KD), which is the leading cause of pediatric heart disease, is characterized by coronary vasculitis and subsequent aneurysm formation. Although intravenous immunoglobulin therapy is effective for reducing aneurysm formation, a certain number of patients are resistant to this therapy. Because interleukin-10 (IL-10) was identified as a negative regulator of cardiac inflammation in a murine model of KD induced by Candida albicans water-soluble fraction (CAWS), we investigated the effect of IL-10 supplementation in CAWS-induced vasculitis...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29755853/reg3%C3%AE-from-cardiomyocytes-regulated-macrophage-migration-proliferation-and-functional-skewing-in-experimental-autoimmune-myocarditis
#3
Shanshan Zhou, Han Jiang, Han Wang, Hongxiang Lu, Rong Chen, Huaxi Xu, Zhaoliang Su, Xiaoyi Shao
Macrophages play critical roles in inflammatory initiation, development, resolution and cardiac regeneration of myocarditis. However, Reg3β, as a member of regenerating family of proteins, contributes to dedifferentiation of injury cardiomyocytes as well as cardiac function remodeling. It remains unclear whether Reg3β was associated with macrophages reprogramming during autoimmune myocarditis. Our results showed that Reg3β could effectively recruit macrophages, promoted their proliferation and phagocytosis, and facilitated their polarized into M2 macrophages...
2018: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29755471/extracellular-vesicles-shed-by-trypanosoma-cruzi-potentiate-infection-and-elicit-lipid-body-formation-and-pge-2-production-in-murine-macrophages
#4
Maria Isabel Lovo-Martins, Aparecida Donizette Malvezi, Nágela Ghabdan Zanluqui, Bruno Fernando Cruz Lucchetti, Vera Lúcia Hideko Tatakihara, Patricia Alves Mörking, Admilton Gonçalves de Oliveira, Samuel Goldenberg, Pryscilla Fanini Wowk, Phileno Pinge-Filho
During the onset of Trypanosoma cruzi infection, an effective immune response is necessary to control parasite replication and ensure host survival. Macrophages have a central role in innate immunity, acting as an important trypanocidal cell and triggering the adaptive immune response through antigen presentation and cytokine production. However, T. cruzi displays immune evasion mechanisms that allow infection and replication in macrophages, favoring its chronic persistence. One potential mechanism is the release of T...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29753320/adverse-effects-of-hif1a-mutation-and-maternal-diabetes-on-the-offspring-heart
#5
Radka Cerychova, Romana Bohuslavova, Frantisek Papousek, David Sedmera, Pavel Abaffy, Vladimir Benes, Frantisek Kolar, Gabriela Pavlinkova
BACKGROUND: Epidemiological studies show that maternal diabetes predisposes offspring to cardiovascular and metabolic disorders. However, the precise mechanisms for the underlying penetrance and disease predisposition remain poorly understood. We examined whether hypoxia-inducible factor 1 alpha, in combination with exposure to a diabetic intrauterine environment, influences the function and molecular structure of the adult offspring heart. METHODS AND RESULTS: In a mouse model, we demonstrated that haploinsufficient (Hif1a+/- ) offspring from a diabetic pregnancy developed left ventricle dysfunction at 12 weeks of age, as manifested by decreased fractional shortening and structural remodeling of the myocardium...
May 12, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29750575/unified-nexus-of-macrophages-and-maresins-in-cardiac-reparative-mechanisms
#6
Jeevan Kumar Jadapalli, Ganesh V Halade
Macrophages are immune-sensing "big eater" phagocytic cells responsible for an innate, adaptive, and regenerative response. After myocardial infarction, macrophages predominantly clear the deceased cardiomyocyte apoptotic or necrotic neutrophils to develop a regenerative and reparative program with the activation of the lipoxygenase-mediated maresin (MaR) metabolome at the site of ischemic injury. The specialized proresolving molecule and macrophage mediator in resolving inflammation, MaR-1, produced by human macrophages, has potent defining effects that limit polymorphonuclear neutrophil infiltration, enhance uptake of apoptotic PMNs, regulate inflammation resolution and tissue regeneration, and reduce pain...
May 11, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29740050/matrix-metalloproteinases-mmps-mediate-leukocyte-recruitment-during-the-inflammatory-phase-of-zebrafish-heart-regeneration
#7
Shisan Xu, Sarah E Webb, Terrence Chi Kong Lau, Shuk Han Cheng
In zebrafish, the role of matrix metalloproteinases (MMPs) in the inflammatory phase of heart regeneration following cryoinjury remains poorly understood. Here, we demonstrated an increase in MMP enzymatic activity and elevated expression of mmp9 and mmp13 in the injured area (IA) of hearts from as early as 1 day post-cryoinjury (dpc). Treatment with the broad-spectrum MMP inhibitor, GM6001, during the first week after cryoinjury resulted in impaired heart regeneration, as indicated by the larger scar and reduced numbers of proliferating cardiomyocytes...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29730525/inflammation-and-atherosclerosis-cardiovascular-evaluation-in-patients-with-autoimmune-diseases
#8
REVIEW
Ricardo O Escárcega, Michael J Lipinski, Mario García-Carrasco, Claudia Mendoza-Pinto, Jose Luis Galvez-Romero, Ricard Cervera
Evidence now indicates that inflammation contributes considerably to the initiation and progression of atherosclerosis and active inflammatory processes may trigger plaque rupture and enhance the risk of coronary thrombosis leading to a clinical ischemic event. Interest in characterizing inflammatory markers that predict clinical events have dominated clinical investigation. Such markers include C-reactive protein, Fibrinogen and a number of interleukins. Human macrophages avidly phagocytize cholesterol crystals...
May 3, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29728415/crispr-mediated-gene-editing-to-assess-the-roles-of-tet2-and-dnmt3a-in-clonal-hematopoiesis-and-cardiovascular-disease
#9
Soichi Sano, Kousei Ohshima, Ying Wang, Yasufumi Katanasaka, Miho Sano, Kenneth Walsh
<u>Rationale:</u> Clonal hematopoiesis has been associated with increased mortality and cardiovascular disease (CVD). This condition can arise from somatic mutations in pre-leukemic driver genes within hematopoietic stem/progenitor cells (HSPC). Approximately 40 candidate driver genes have been identified, but mutations in only one of these genes, Ten-Eleven Translocation-2 (TET2), has been shown to casually contribute to CVD in murine models. <u>Objective:</u> To develop a facile system to evaluate the disease characteristics of different clonal hematopoiesis driver genes using lentivirus vector and CRISPR/Cas9 methodology...
May 4, 2018: Circulation Research
https://www.readbyqxmd.com/read/29726987/admission-macrophage-migration-inhibitory-factor-predicts-long-term-prognosis-in-patients-with-st-elevation-myocardial-infarction
#10
Xiang-Ning Deng, Xin-Yu Wang, Hai-Yi Yu, Shao-Min Chen, Xin-Ye Xu, Wei Huai, Gui-Hua Liu, Qing-Bian Ma, You-Yi Zhang, Anthony M Dart, Xiao-Jun Du, Wei Gao
Background: We previously showed in patients with ST-segment elevated myocardial infarction (STEMI) that admission levels of macrophage migration inhibitory factor (MIF) predict infarct size. It remains unclear whether admission MIF alone or in combination with other biomarkers is useful for risk assessment of acute and chronic clinical outcomes in STEMI patients. Methods and Results: 566 STEMI patients treated with primary percutaneous coronary intervention (PCI) were consecutively recruited...
May 2, 2018: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/29722336/mitochondrial-autophagy-and-nlrp3-inflammasome-in-pulmonary-tissues-from-severe-combined-immunodeficient-mice-after-cardiac-arrest-and-cardiopulmonary-resuscitation
#11
Jing-Jun Lyu, Jawahar L Mehta, Yi Li, Lu Ye, Sheng-Nan Sun, Hong-Shuang Sun, Jia-Chang Li, Dong-Mei Zhang, Jie Wei
Background: The incidence of cancer, diabetes, and autoimmune diseases has been increasing. Furthermore, there are more and more patients with solid organ transplants. The survival rate of these immunocompromised individuals is extremely low when they are severely hit-on. In this study, we established cardiac arrest cardiopulmonary resuscitation (CPR) model in severe combined immunodeficient (SCID) mice, analyzed the expression and activation of mitochondrial autophagy and NLRP3 inflammasome/caspase-1, and explored mitochondrial repair and inflammatory injury in immunodeficiency individual during systemic ischemia-reperfusion injury...
May 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29712962/annexin-a5-reduces-infarct-size-and-improves-cardiac-function-after-myocardial-ischemia-reperfusion-injury-by-suppression-of-the-cardiac-inflammatory-response
#12
Rob C M de Jong, Niek J Pluijmert, Margreet R de Vries, Knut Pettersson, Douwe E Atsma, J Wouter Jukema, Paul H A Quax
Annexin A5 (AnxA5) is known to have anti-inflammatory and anti-apoptotic properties. Inflammation and apoptosis are key processes in post-ischemic cardiac remodeling. In this study, we investigated the effect of AnxA5 on left ventricular (LV) function and remodeling three weeks after myocardial ischemia-reperfusion (MI-R) injury in hypercholesterolemic ApoE*3-Leiden mice. Using a mouse model for MI-R injury, we demonstrate AnxA5 treatment resulted in a 27% reduction of contrast-enhanced MRI assessed infarct size (IS)...
April 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29712858/distinct-roles-of-resident-and-nonresident-macrophages-in-nonischemic-cardiomyopathy
#13
Xudong Liao, Yuyan Shen, Rongli Zhang, Keiki Sugi, Neelakantan T Vasudevan, M Amer Alaiti, David R Sweet, Lin Zhou, Yulan Qing, Stanton L Gerson, Chen Fu, Anthony Wynshaw-Boris, Rui Hu, Martin A Schwartz, Hisashi Fujioka, Brian Richardson, Mark J Cameron, Hiroki Hayashi, Jonathan S Stamler, Mukesh K Jain
Nonischemic cardiomyopathy (NICM) resulting from long-standing hypertension, valvular disease, and genetic mutations is a major cause of heart failure worldwide. Recent observations suggest that myeloid cells can impact cardiac function, but the role of tissue-intrinsic vs. tissue-extrinsic myeloid cells in NICM remains poorly understood. Here, we show that cardiac resident macrophage proliferation occurs within the first week following pressure overload hypertrophy (POH; a model of heart failure) and is requisite for the heart's adaptive response...
April 30, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29701397/syphilitic-aortitis-diagnosis-in-clinical-setting
#14
Bruno Fernandes, Arsénio Santos, Lina Carvalho
INTRODUCTION: Cardiovascular syphilis can manifest as aortic aneurysms, aortic regurgitation and coronary ostial stenosis. Tertiary syphilis was the most commom reported cause of thoracic aortic aneurysm in the pre-antibiotic era, contributing to 5- 10% of cardiovascular deaths. However, in the 21st century, it has virtually disappered from the devoloping nations. Tertiay syphilis may develop in about one third of cases of untreated syphilis. In the pre-penicilin era, it was calculated that cardiovascular syphilis was responsible for 10-15% of clinical syphilis...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29696014/genetic-polymorphism-at-ccl5-is-associated-with-protection-in-chagas-heart-disease-antagonistic-participation-of-ccr1-and-ccr5-cells-in-chronic-chagasic-cardiomyopathy
#15
Angelica Martins Batista, Lucia Elena Alvarado-Arnez, Silvia Marinho Alves, Gloria Melo, Isabela Resende Pereira, Leonardo Alexandre de Souza Ruivo, Andrea Alice da Silva, Daniel Gibaldi, Thayse do E S Protásio da Silva, Virginia Maria Barros de Lorena, Adriene Siqueira de Melo, Ana Karine de Araújo Soares, Michelle da Silva Barros, Vláudia Maria Assis Costa, Cynthia C Cardoso, Antonio G Pacheco, Cristina Carrazzone, Wilson Oliveira, Milton Ozório Moraes, Joseli Lannes-Vieira
Chronic cardiomyopathy is the main clinical manifestation of Chagas disease (CD), a disease caused by Trypanosoma cruzi infection. A hallmark of chronic chagasic cardiomyopathy (CCC) is a fibrogenic inflammation mainly composed of CD8+ and CD4+ T cells and macrophages. CC-chemokine ligands and receptors have been proposed to drive cell migration toward the heart tissue of CD patients. Single nucleotide polymorphisms (SNPs) in CC-chemokine ligand and receptor genes may determine protein expression. Herein, we evaluated the association of SNPs in the CC-chemokines CCL2 (rs1024611) and CCL5 (rs2107538, rs2280788) and the CCL5/RANTES receptors CCR1 (rs3181077, rs1491961, rs3136672) and CCR5 (rs1799987) with risk and progression toward CCC...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29689564/pulmonary-exposure-to-particulate-matter-pm2-5-affects-the-sensitivity-to-myocardial-ischemia-reperfusion-injury-through-farnesoid-x-receptor-induced-autophagy
#16
Fei Tong, Hua Zhang
BACKGROUND/AIMS: The purpose of this study was to investigate the effect of administering particulate matter (PM2.5) to the lungs on the sensitivity to myocardial ischemia/reperfusion injury (MI/RI) and the role of farnesoid-X-receptor (FXR)-induced autophagy in this process. METHODS: Male Sprague Dawley (SD) rats were subjected to 45 min of ischemia, and the lungs were exposed to 2.0 mg of PM2.5 in 0.3 mL of normal saline 5 min before reperfusion. After 24 h of reperfusion, the blood and myocardium were collected, and the myocardial infarct sizes, activities of serum creatine kinase (CK) and lactate dehydrogenase (LDH), and levels of serum high sensitivity C-reactive protein (hsCRP), interleukin-4 (IL-4), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), cardiac troponin T (cTnT), P-selectin and D-dimer were measured via biochemical analysis...
April 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29688992/long-term-outcomes-of-kidney-transplantation-in-fabry-disease
#17
Sara Ersözlü, Robert J Desnick, Uyen Huynh-Do, Sima Canaan-Kühl, Frédéric Barbey, Vera Genitsch, Thomas Müller, Marcus Cheetham, Andreas Flammer, Stefan Schaub, Albina Nowak
BACKGROUND: Fabry disease is a rare X-linked lysosomal storage disorder caused by mutations in the α-galactosidase A gene that obliterate or markedly reduce α-galactosidase A activity. This results in the systemic accumulation of its glycosphingolipid substrates in body fluids and organs, including the kidney. Fabry nephropathy can lead to end-stage renal disease requiring kidney transplantation. Little is known about its long-term outcomes and the overall patient survival after kidney transplantation...
April 24, 2018: Transplantation
https://www.readbyqxmd.com/read/29680681/hdac-inhibition-helps-post-mi-healing-by-modulating-macrophage-polarization
#18
Denise Kimbrough, Sabina H Wang, Lillianne H Wright, Santhosh K Mani, Harinath Kasiganesan, Amanda C LaRue, Qi Cheng, Satish N Nadig, Carl Atkinson, Donald R Menick
AIMS: Following an acute myocardial infarction (MI) the extracellular matrix (ECM) undergoes remodeling in order to prevent dilation of the infarct area and maintain cardiac output. Excessive and prolonged inflammation following an MI exacerbates adverse ventricular remodeling. Macrophages are an integral part of the inflammatory response that contribute to this remodeling. Treatment with histone deacetylase (HDAC) inhibitors preserves LV function and myocardial remodeling in the post-MI heart...
April 19, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29678661/role-of-heat-shock-transcription-factor-1-hsf1-upregulated-macrophage-in-ameliorating-pressure-overload-induced-heart-failure-in-mice
#19
Peizhao Du, Yaowei Chang, Fangjie Dai, Chunyan Wei, Qi Zhang, Jiming Li
In order to explore the role of macrophages in HSF1-mediated alleviation of heart failure, mice model of pressure overload-induced heart failure was established using transverse aortic constriction (TAC). Changes in cardiac function and morphology were studied in TAC and SHAM groups using ultrasonic device, tissue staining, electron microscopy, real-time quantitative polymerase chain reaction (RT-QPCR), and Western blotting. We found that mice in the TAC group showed evidence of impaired cardiac function and aggravation of fibrosis on ultrasonic and histopathological examination when compared to those in the SHAM group...
April 17, 2018: Gene
https://www.readbyqxmd.com/read/29674325/adenylate-cyclase-type-9-adcy9-inactivation-protects-from-atherosclerosis-only-in-the-absence-of-cholesteryl-ester-transfer-protein-cetp
#20
Yohann Rautureau, Vanessa Deschambault, Marie-Ève Higgins, Daniel Rivas, Mélanie Mecteau, Pascale Geoffroy, Géraldine Miquel, Kurunradeth Uy, Rocio Sanchez, Véronique Lavoie, Geneviève Brand, Audrey Nault, Pierre-Marc Williams, Maria Laura Suarez, Nolwenn Merlet, Line Lapointe, Natacha Duquette, Marc-Antoine Gillis, Samaneh Samami, Gaétan Mayer, Philippe Pouliot, Adeline Raignault, Foued Maafi, Mathieu R Brodeur, Sylvie Levesque, Marie-Claude Guertin, Marie-Pierre Dubé, Éric Thorin, David Rhainds, Éric Rhéaume, Jean-Claude Tardif
Background -Pharmacogenomic studies have shown that ADCY9 genotype determines the effects of the cholesteryl ester transfer protein (CETP) inhibitor dalcetrapib on cardiovascular events and atherosclerosis imaging. The underlying mechanisms responsible for the interactions between ADCY9 and CETP activity have not yet been determined. Methods - Adcy9 -inactivated ( Adcy9 Gt/Gt ) and wild-type (WT) mice, that were or not transgenic for the CETP gene (CETPtg Adcy9 Gt/Gt and CETPtg Adcy9 WT ), were submitted to an atherogenic protocol (injection of an AAV8 expressing a PCSK9 gain-of-function variant and 0...
April 19, 2018: Circulation
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