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Cardiac inflammation

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https://www.readbyqxmd.com/read/28740379/peg-coated-gold-nanoparticles-attenuate-%C3%AE-adrenergic-receptor-mediated-cardiac-hypertrophy
#1
Yuhui Qiao, Baoling Zhu, Aiju Tian, Zijian Li
Gold nanoparticles (AuNPs) are widely used as a drug delivery vehicle, which can accumulate in the heart through blood circulation. Therefore, it is very important to understand the effect of AuNPs on the heart, especially under pathological conditions. In this study, we found that PEG-coated AuNPs attenuate β-adrenergic receptor (β-AR)-mediated acute cardiac hypertrophy and inflammation. However, both isoproterenol, a non-selective β-AR agonist, and AuNPs did not induce cardiac function change or cardiac fibrosis...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28738526/the-potential-of-chrysophanol-in-protecting-against-high-fat-induced-cardiac-injury-through-nrf2-regulated-anti-inflammation-anti-oxidant-and-anti-fibrosis-in-nrf2-knockout-mice
#2
Yonggang Lian, Xiangjun Xia, Haiying Zhao, Yunfeng Zhu
Cardiovascular complications induced by high fat are one of the most challenging health problems presently. Oxidative stress, inflammation and fibrosis are major components included in the pathology of diabetic cardiomyopathy. Nuclear factor erythroid 2-related factor 2 (Nrf2) has been reported as an essential therapeutic target in various diseases for its induction of anti-oxidant enzymes, and other protective enzymes. Additionally, a number of Nrf2 activators showed strong anti-inflammatory properties. In the study, we calculated the Nrf2-dependent anti-oxidant, anti-inflammatory and anti-fibrosis effects of chrysophanol in high fat diet-induced diabetic heart injury...
July 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28737097/elevated-levels-of-procalcitonin-and-interleukin-6-are-linked-with-postoperative-complications-in-cardiac-surgery
#3
A Brocca, G M Virzì, M de Cal, D Giavarina, M Carta, C Ronco
BACKGROUND: Cardiac surgery-associated acute kidney injury is a frequent and serious postoperative complication of cardiac surgery and is associated with an increased risk of morbidity, mortality, and length stay. In this study, we hypothesized that persistent elevation in inflammation in the first 48 h might be a powerful predictor of clinical outcome. Our aim was to elucidate the usefulness of interleukin-6 and procalcitonin postoperative levels in predicting mortality and renal complications in cardiac surgery patients...
March 1, 2017: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/28736055/monitoring-urinary-orosomucoid-in-patients-undergoing-cardiac-surgery-a-promising-novel-inflammatory-marker
#4
Péter Kustán, Balázs Szirmay, Tamás Kőszegi, Andrea Ludány, Gábor L Kovács, Attila Miseta, Diána Mühl, Balázs Németh, István Kiss, Ádám Németh, Sándor Szabados, Zénó Ajtay
BACKGROUND: Urinary biomarkers might provide non-invasive tool for monitoring of systemic processes. We aimed to investigate the time-course of urinary orosomucoid (u-ORM) excretion after cardiac surgery hypothesizing that u-ORM is an early and sensitive marker of systemic inflammatory activation. METHODS: During a 5-day follow-up study we monitored u-ORM levels in cardiovascular patients who underwent on-pump cardiac surgery (n=38). The patients baseline data were compared to healthy control individuals (n=40)...
July 20, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28735289/prolonged-fever-after-st-segment-elevation-myocardial-infarction-and-long-term-cardiac-outcomes
#5
Chika Kawashima, Yasushi Matsuzawa, Eiichi Akiyama, Masaaki Konishi, Hiroyuki Suzuki, Katsutaka Hashiba, Toshiaki Ebina, Masami Kosuge, Kiyoshi Hibi, Kengo Tsukahara, Noriaki Iwahashi, Nobuhiko Maejima, Kentaro Sakamaki, Satoshi Umemura, Kazuo Kimura, Kouichi Tamura
BACKGROUND: The biphasic inflammation after ST-segment elevation myocardial infarction (STEMI) plays an important role in myocardial healing and progression of systemic atherosclerosis. The purpose of this study is to investigate the impact of fever during the first and second phases of post-STEMI inflammation on long-term cardiac outcomes. METHODS AND RESULTS: A total of 550 patients with STEMI were enrolled in this study. Axillary body temperature (BT) was measured and maximum BTs were determined for the first (within 3 days: max-BT1-3d) and second (from 4 to 10 days after admission: max-BT4-10d) phases, respectively...
July 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28735097/protecting-the-heart-through-mk2-modulation-toward-a-role-in-diabetic-cardiomyopathy-and-lipid-metabolism
#6
REVIEW
Matthieu Ruiz, Lise Coderre, Bruce Gordon Allen, Christine Des Rosiers
Various signaling pathways have been identified in the heart as important players during development, physiological adaptation or pathological processes. This includes the MAPK families, particularly p38MAPK, which is involved in several key cellular processes, including differentiation, proliferation, apoptosis, inflammation, metabolism and survival. Disrupted p38MAPK signaling has been associated with several diseases, including cardiovascular diseases (CVD) as well as diabetes and its related complications...
July 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28733584/therapeutic-effects-of-sphingosine-kinase-inhibitor-n-n-dimethylsphingosine-dms-in-experimental-chronic-chagas-disease-cardiomyopathy
#7
Juliana Fraga Vasconcelos, Cássio Santana Meira, Daniela Nascimento Silva, Carolina Kymie Vasques Nonaka, Pâmela Santana Daltro, Simone Garcia Macambira, Pablo Daniel Domizi, Valéria Matos Borges, Ricardo Ribeiro-Dos-Santos, Bruno Solano de Freitas Souza, Milena Botelho Pereira Soares
Chagas disease cardiomyopathy is a parasite-driven inflammatory disease to which there are no effective treatments. Here we evaluated the therapeutic potential of N,N-dimethylsphingosine(DMS), which blocks the production of sphingosine-1-phosphate(S1P), a mediator of cellular events during inflammatory responses, in a model of chronic Chagas disease cardiomyopathy. DMS-treated, Trypanosoma cruzi-infected mice had a marked reduction of cardiac inflammation, fibrosis and galectin-3 expression when compared to controls...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28732106/specific-%C3%AE-7-nicotinic-acetylcholine-receptor-agonist-ameliorates-isoproterenol-induced-cardiac-remodeling-in-mice-through-tgf-%C3%AE-1-smad3-pathway
#8
Yong-Hua Yang, Huan-Le Fang, Ming Zhao, Xiang-Lan Wei, Ning Zhang, Shun Wang, Yi Lu, Xiao-Jiang Yu, Lei Sun, Xi He, Dong-Ling Li, Jin-Jun Liu, Wei-Jin Zang
It is well-accepted that inflammation plays an important role in the development of cardiac remodeling and that therapeutic approaches targeting inflammation can inhibit cardiac remodeling. Although a large amount of evidence indicates that activation of α7 nicotinic acetylcholine receptor (α7nAChR) causes an anti-inflammatory effect, the role of α7nAChR in cardiac remodeling and the underlying mechanism have not been established. To investigate the effect of the specific α7nAChR agonist, PNU282987, on cardiac remodeling induced by isoproterenol (ISO 60 mg/kg/d) in mice, the cardiomyocyte cross-sectional area (CSA) and collagen volume fraction were evaluated by hematoxylin and eosin (HE) and Masson staining, respectively...
July 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28730707/establishment-and-characterization-of-a-novel-murine-model-of-pancreatic-cancer-cachexia
#9
Katherine A Michaelis, Xinxia Zhu, Kevin G Burfeind, Stephanie M Krasnow, Peter R Levasseur, Terry K Morgan, Daniel L Marks
BACKGROUND: Cachexia is a complex metabolic and behavioural syndrome lacking effective therapies. Pancreatic ductal adenocarcinoma (PDAC) is one of the most important conditions associated with cachexia, with >80% of PDAC patients suffering from the condition. To establish the cardinal features of a murine model of PDAC-associated cachexia, we characterized the effects of implanting a pancreatic tumour cell line from a syngeneic C57BL/6 KRAS(G12D) P53(R172H) Pdx-Cre(+/+) (KPC) mouse...
July 20, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28726929/sesamin-prevents-apoptosis-and-inflammation-after-experimental-myocardial-infarction-by-jnk-and-nf-%C3%AE%C2%BAb-pathways
#10
Di Fan, Zheng Yang, Yuan Yuan, Qing-Qing Wu, Man Xu, Ya-Ge Jin, Qi-Zhu Tang
Myocardial infarction is a devastating event, especially when reperfusion is not performed. The inflammatory response has been associated with the pathogenesis of left ventricular remodeling after myocardial infarction. This study focused on the anti-apoptotic and anti-inflammatory effects of sesamin on ligation of the left anterior descending artery in an experimental mouse model and the potential mechanism underlying the activation of JNK and NF-κB pathways. Mice with MI induced by surgical left anterior descending coronary artery ligation were treated with sesamin by gavage for 1 week...
July 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28724904/hypertonic-saline-infusion-suppresses-apoptosis-of-hippocampal-cells-in-a-rat-model-of-cardiopulmonary-resuscitation
#11
Xiang Zhou, Yong Liu, Yang Huang, ShuiBo Zhu, Jian Zhu, RongPing Wang
Hypertonic saline (HS) attenuates cerebral edema, improves microcirculation perfusion and alleviates inflammation. However, whether the beneficial effect of HS on neurological function after cardiopulmonary resuscitation (CPR) in rat model of asphyxial cardiac arrest (CA) is mediated via attenuating apoptosis of neurons is not known. We studied the neuroprotective effect of HS in rats after CA and CPR, and explored the likely underlying mechanisms. Animals were randomly assigned to 4 equal groups (n = 15 each) according to the different infusions administered during resuscitation: control (C), normal saline (NS), hypertonic saline (HS), and hydroxyethyl starch (HES) groups...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724493/oral-transmucosal-detomidine-gel-in-new-zealand-white-rabbits-oryctolagus-cuniculus
#12
Morika D Williams, C Tyler Long, Jessica R Durrant, Gabriel P McKeon, Heather R Shive, Emily H Griffith, Kristen M Messenger, Richard E Fish
Handling and restraining rabbits for routine procedures may be impossible without prior sedation, result in unnecessary stress or injury to the rabbit or handler, and increase experimental variability. Parenteral administration of sedatives can cause stress also, as well as localized pain and tissue damage, especially in fractious animals. Detomidine hydrochloride, an α2-adrenergic receptor agonist, is commercially available in an oral transmucosal (OTM) gel formulation that is FDA-approved for sedation and restraint in horses...
July 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28721163/additive-effects-of-atorvastatin-combined-with-sitagliptin-on-rats-with-myocardial-infarction-a-pilot-study
#13
Xiao Ke, Bin Ke, Xing Wang, Shaoyun Wu, Rongfeng Yang, Chengheng Hu
INTRODUCTION: Atorvastatin and sitagliptin are able to exert cardio-protective effects. However, whether atorvastatin plus sitagliptin could confer additive benefits for rats with myocardial infarction (MI) is unknown. MATERIAL AND METHODS: Forty rats with MI were produced and 37 surviving rats were randomly divided into atorvastatin (10 mg/kg daily, n = 9), sitagliptin (10 mg/kg daily, n = 9), combined (10 mg/kg daily atorvastatin plus 10 mg/kg daily sitagliptin, n = 9), and control groups (3 ml normal saline daily, n = 10)...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28721158/potential-novel-biomarkers-of-cardiovascular-dysfunction-and-disease-cardiotrophin-1-adipokines-and-galectin-3
#14
Simona Hogas, Stefana C Bilha, Dumitru Branisteanu, Mihai Hogas, Abduzhappar Gaipov, Mehmet Kanbay, Adrian Covic
Cardiovascular disease is one of the main burdens of healthcare systems worldwide. Nevertheless, assessing cardiovascular risk in both apparently healthy individuals and low/high-risk patients remains a difficult issue. Already established biomarkers (e.g. brain natriuretic peptide, troponin) have significantly improved the assessment of major cardiovascular events and diseases but cannot be applied to all patients and in some cases do not provide sufficiently accurate information. In this context, new potential biomarkers that reflect various underlying pathophysiological cardiac and vascular modifications are needed...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28720491/the-immunomodulatory-effects-of-the-enalapril-in-combination-with-benznidazole-during-acute-and-chronic-phases-of-the-experimental-infection-with-trypanosoma-cruzi
#15
Ana Luisa Junqueira Leite, Guilherme de Paula Costa, Laís Roquete Lopes, Ludmilla Walter Dos Reis Mota, Paula Melo de Abreu Vieira, André Talvani
Trypanosoma cruzi infection triggers a chronic inflammatory process responsible for the alterations in the extracellular matrix and functionality of the heart. The angiotensin converting enzyme (ACE) inhibitors affects T. cruzi in vitro surveillance and modulates in vivo some inflammatory mediators. In this study, we investigated the treatment with an ACE inhibitor (Enalapril) and the Benznidazole (Bz) in a single and combination therapies (CT) in C57BL/6 mice infected with VL-10 strain of the T. cruzi. Animals were treated during 20days with different doses of Bz (100, 80, 60mg/kg), Enalapril (25, 20, 15mg/kg) and their CT (100+25; 80+20; 60+15mg/kg) and euthanized at 30° (acute) and at 120° (chronic) days post infection...
July 15, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28716564/endothelial-to-mesenchymal-transition-in-the-cardiovascular-system
#16
REVIEW
Hui Gong, Xing Lu, Qiong Wang, Min Hu, Xiangyu Zhang
Endothelial to mesenchymal transition (EndMT) is a special type of epithelial to mesenchymal transition. It is a process that is characterized by the loss of features of endothelial cells and acquisition of specific markers of mesenchymal cells. A variety of stimuli, such as inflammation, growth factors, and hypoxia, regulate EndMT through various signaling pathways and intracellular transcription factors. It has been demonstrated that epigenetic modifications are also involved in this process. Recent studies have identified the essential role of EndMT in the cardiovascular system...
July 14, 2017: Life Sciences
https://www.readbyqxmd.com/read/28716007/silent-myocarditis-in-systemic-sclerosis-detected-by-cardiovascular-magnetic-resonance-using-lake-louise-criteria
#17
Sophie Mavrogeni, Loukia Koutsogeorgopoulou, Georgia Karabela, Efthymios Stavropoulos, Gikas Katsifis, John Raftakis, Sotiris Plastiras, Michel Noutsias, George Markousis-Mavrogenis, Genovefa Kolovou
BACKGROUND: Systemic sclerosis (SSc) is an autoimmune disease characterized by microvascular abnormalities, inflammation and fibrosis. We hypothesized that myocarditis may be diagnosed in asymptomatic SSc, undergoing routine cardio-vascular magnetic resonance (CMR) for fibrosis assessment, using the Lake Louise criteria: T2 ratio, early (EGE) and late gadolinium enhanced (LGE) images. METHODS: Eighty-two asymptomatic SSc, diagnosed according to American College of Rheumatology criteria, aged 43 ± 5 yrs...
July 17, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28714796/effect-of-bariatric-surgery-on-heart-failure
#18
Marcela Rodriguez Flores, Carlos Aguilar Salinas, Marie-Eve Piché, Audrey Auclair, Paul Poirier
Obesity increases the risk of heart failure (HF), which continues to be a significant proportion of all cardiovascular diseases and affects increasingly younger populations. The cross-talk between adipose and the heart involves insulin resistance, adipokine signaling and inflammation, with the capacity of adipose tissue to mediate hemodynamic signals, promoting progressive cardiomyopathy. Areas covered: From a therapeutic perspective, there is not yet a single obesity-related pathway that when addressed, can ameliorate cardiomyopathy in obese patients and this is a matter of ongoing research...
July 17, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28714586/activation-of-autophagy-is-involved-in-the-protective-effect-of-17%C3%AE-oestradiol-on-endotoxaemia-induced-multiple-organ-dysfunction-in-ovariectomized-rats
#19
Ming-Tzeung Chung, Yen-Mei Lee, Hsin-Hsueh Shen, Pao-Yun Cheng, Yu-Chen Huang, Yu-Ju Lin, Yu-Yang Huang, Kwok-Keung Lam
Oestrogens have been reported to attenuate acute inflammation in sepsis. In this study, the effects of long-term oestrogen replacement with 17β-oestradiol (E2 ) on endotoxaemia-induced circulatory dysfunction and multiple organ dysfunction syndrome were evaluated in ovariectomized (Ovx) rats. E2 (50 μg/kg, s.c., 3 times/week) was administered for 8 weeks, followed by the induction of endotoxaemia by intravenous infusion of lipopolysaccharides (LPS; 30 mg/kg/4 hrs). Oestrogen deficiency induced by ovariectomy for 9 weeks augmented the LPS-induced damage, including endotoxic shock, myocardial contractile dysfunction, renal dysfunction and rhabdomyolysis...
July 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28713487/moringa-oleifera-seeds-attenuate-vascular-oxidative-and-nitrosative-stresses-in-spontaneously-hypertensive-rats
#20
Joseph Iharinjaka Randriamboavonjy, Marc Rio, Pierre Pacaud, Gervaise Loirand, Angela Tesse
Moringa oleifera (MOI) is a tree currently used in traditional medicine in tropical Africa, America, and Asia for therapeutic applications in several disorders including arterial hypertension. We previously described a cardiac protective role of a treatment with MOI seeds in spontaneously hypertensive rats (SHR). Here, we investigated the effects of this treatment on oxidative and nitrosative vascular stresses in SHR, with normotensive Wistar Kyoto rats used as controls. Oxidative and nitrosative stresses detected in SHR aortas using the fluorescent dye dihydroethidine and protein nitrotyrosine staining were reduced in MOI-treated SHR aortas...
2017: Oxidative Medicine and Cellular Longevity
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