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Atrial fibrillation AND inflammation

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https://www.readbyqxmd.com/read/29126922/the-unrecognized-role-of-tumor-suppressor-genes-in-atrial-fibrillation
#1
REVIEW
Liang Mao, Wenjun Huang, Ping Zou, Xitong Dang, Xiaorong Zeng
Epidemiogical evidence has shown that the incidence of atrial fibrillation in tumor patients is higher than non-tumor patients and general population. The potential risk factors predisposing tumor patients to atrial fibrillation include advanced age, comorbidities, direct anatomic local occupying effect of tumors in the heart or adjacent organs, paraneoplastic manifestations of some tumors, tumor-induced dys-regulation of metabolism, radio-, bio- and chemo-therapeutics, disturbance of autonomous nerve system because of physical pain and psychological sufferings, chronic inflammation typical of most tumors, and surgical interventions among others...
November 7, 2017: Gene
https://www.readbyqxmd.com/read/29075499/metformin-therapy-and-postoperative-atrial-fibrillation-in-diabetic-patients-after-cardiac-surgery
#2
Suresh Basnet, Andrzej Kozikowski, Haiyan Sun, Melissa Troup, Luis E Urrutia, Renee Pekmezaris
BACKGROUND: Postoperative atrial fibrillation (AF) commonly occurs in cardiac surgery patients. Studies suggest inflammation and oxidative stress contribute to postoperative AF development in this patient population. Metformin exerts an anti-inflammatory effect that reduces oxidative stress and thus may play a role in preventing postoperative AF. METHODS: We conducted a matched, retrospective cohort study of diabetic patients' age ≥18 undergoing a coronary artery bypass graft (CABG) and/or cardiac valve surgery from January 1, 2009, to November 30, 2014...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/29074341/the-clinical-significance-of-endocardial-endothelial-dysfunction
#3
REVIEW
Sonja Smiljic
Endocardial endothelium (EE) is essential in the embryonic development of the heart, the optimal contractility and rhythm as well as the remodeling of the heart. Endocardial endothelium affect the contractility of cardiomyocytes through paracrine signaling substances such as nitric oxide (NO), endothelin (ET-1), prostaglandins (PGI2, PGF2, PGE2) and angiotensin II (ANG II). Typical lesions of endocardial endothelium have been described in atrial fibrillation, ischemia/reperfusion injury, cardiac hypertrophy, heart failure, sepsis, myocardial infarction, inflammation and thrombosis...
September 21, 2017: Medicina
https://www.readbyqxmd.com/read/29050786/homocysteine-in-non-valvular-atrial-fibrillation-role-and-clinical-implications
#4
REVIEW
Yan Yao, Mei-Sheng Shang, Jian-Zeng Dong, Chang-Sheng Ma
Atrial fibrillation (AF), the most common sustained arrhythmia, is associated with a series of adverse complications that cause so-called AF socioeconomic burden. Apart from the classical risk factors, it seems to be novel factors that increase the risk of AF and AF-related stroke. Recently, more and more evidence has well documented the close relationships between homocysteine (Hcy) and AF. As a well-known marker for pro-oxidation and pro-inflammation, Hcy plays an important role in a number of vascular diseases having strong association with AF...
October 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29045723/acute-administration-of-tumour-necrosis-factor-%C3%AE-induces-spontaneous-calcium-release-via-the-reactive-oxygen-species-pathway-in-atrial-myocytes
#5
Song Zuo, Lin-Ling Li, Yan-Fei Ruan, Le Jiang, Xin Li, Song-Nan Li, Song-Nan Wen, Rong Bai, Nian Liu, Xin Du, Jian-Zeng Dong, Chang-Sheng Ma
Aims: The arrhythmogenic mechanisms of atrial fibrillation (AF) that are induced by acute inflammation, such as postoperative AF, are not well understood. We investigated the acute effects of tumour necrosis factor-α (TNF-α) that mimic acute inflammation on Ca2+ handling in isolated atrial myocytes and its underlying mechanisms. Methods and results: Cytosol Ca2+ handling and mitochondrial reactive oxygen species (ROS) production were studied in freshly isolated atrial myocytes of wild-type mice that were exposed to TNF-α (0...
October 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29039347/ferritin-as-a-potential-biomarker-of-efficacy-of-treatment-of-atrial-fibrillation-preliminary-report
#6
Adam Sokal, Sylwia Wójcik, Patrycja Pruszkowska, Oskar Kowalski, Radoslaw Lenarczyk, Agnieszka Liberska, Michał Mazurek, Slawomir Pluta, Zbigniew Kalarus
BACKGROUND: Complex mechanisms of responsible for originating and maintaining of atrial fibrillation (AF) are involved in pathophysiology of this arrhythmia. Inflammation substantially contribute to arrhythmic remodelling of atrial tissue.The aim of the present study is to assess an applicability of ferritin and high sensitive C-reactive protein (hs-CRP) as biomarkers of atrial fibrillation and their usefulness in evaluation of efficacy of cryoablation. MATERIALS AND METHODS: The study population consisted of 40 patients who underwent first AF cryoablation procedure...
October 13, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/29022500/biomarkers-of-atrial-fibrillation-in-metabolic-syndrome
#7
Christos Georgakopoulos, Charalambos Vlachopoulos, Georgios Lazaros, Dimitris Tousoulis
Whether the increased atrial fibrillation (AF) risk in metabolic syndrome (MetS) patients is due to the syndrome as a whole or simply the sum of the risks of its individual component parts is still obscure. These two clinical entities share many pathophysiological links and thus distinction between a casual observation and a significant association is difficult. Biomarkers associated with pathogenesis of AF in the context of MetS have the ability to refine future risk prediction. In the present review we identify circulating substances that could be regarded as potential biomarkers for prediction of incident AF, or of cardiovascular events in the setting of AF in patients with MetS...
October 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29021852/association-between-serum-soluble-urokinase-type-plasminogen-activator-receptor-and-atrial-fibrillation
#8
Noboru Ichihara, Masatoshi Miyamura, Daichi Maeda, Tomohiro Fujisaka, Shu-Ichi Fujita, Hideaki Morita, Yoshihiro Takeda, Takahide Ito, Koichi Sohmiya, Masaaki Hoshiga, Nobukazu Ishizaka
BACKGROUND: Circulating soluble urokinase-type plasminogen activator receptor (suPAR), which can reflect immune activation and low-grade inflammation, may be a novel biomarker of cardiovascular disease. METHODS: We investigated the potential association between suPAR and the prevalence of atrial fibrillation (AF) by analyzing patients with either sinus rhythm, paroxysmal atrial fibrillation (PAF), or non-paroxysmal atrial fibrillation (NPAF), which indicates either permanent or persistent AF...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28993090/possible-role-of-rivaroxaban-in-attenuating-pressure-overload-induced-atrial-fibrosis-and-fibrillation
#9
Hidekazu Kondo, Ichitaro Abe, Akira Fukui, Shotaro Saito, Miho Miyoshi, Kohei Aoki, Tetsuji Shinohara, Yasushi Teshima, Kunio Yufu, Naohiko Takahashi
BACKGROUND: Coagulation factor Xa (FXa) promotes thrombus formation and exacerbates inflammation via activation of protease-activated receptor (PAR)-2. We tested the hypothesis of whether administration of direct oral anticoagulant, rivaroxaban, would attenuate transverse aortic constriction (TAC)-induced atrial inflammatory fibrosis and vulnerability to atrial fibrillation (AF) in mice. METHODS: Ten-week-old male CL57/B6 mice were divided into a sham-operation (CNT) group and TAC-surgery group...
October 6, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28990508/biomarkers-of-atrial-fibrillation-in-hypertension
#10
Costas Tsioufis, Dimitrios Konstantinidis, Elias Nikolakopoulos, Evi Vemou, Theodoros Kalos, Georgios Georgiopoulos, Nikos Vogiatzakis, Aristos Ifantis, Konstantinos Konstantinou, V Gennimata, Dimitris Tousoulis
It is well known that atrial fibrillation (AF) is the most frequent cardiac arrhythmia worldwide and substantially increases the risk for thromboembolic disease. One of the main problems is that it remains undiagnosed (about 20% of all cases of AF). On the other hand, hypertension amplifies the risk for both AF occurrences through hemodynamic and non-hemodynamic mechanisms and cerebrovascular ischemia. Under this prism, prompt diagnosis of undetected AF in hypertensive patients is of pivotal importance. Biomarkers could be used in AF diagnosis as well as in predicting the transition of paroxysmal AF to sustained AF...
October 6, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28982550/randomized-trial-of-carnitine-for-the-prevention-of-perioperative-atrial-fibrillation
#11
Farzaneh Dastan, Azita Hajhossein Talasaz, Mojtaba Mojtahedzadeh, Abbassali Karimi, Abbas Salehiomran, Payvand Bina, Arash Jalali
Atrial fibrillation (AF) is one of the most common complications in patients who undergo coronary artery bypass graft surgery (CABG). The aim of this study was to evaluate the effect of L-carnitine administration on postoperative AF and the levels of C-reactive protein (CRP) following CABG. The effects of L-carnitine on the incidence of acute kidney injury after CABG were also assessed. One hundred thirty-four patients undergoing elective CABG, without a history of AF or previous L-carnitine treatment, were randomly assigned to an L-carnitine group (3000 mg/d L-carnitine) or a control group...
August 24, 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28980294/the-effect-of-intravenous-n-acetylcysteine-on-prevention-of-atrial-fibrillation-after-coronary-artery-bypass-graft-surgery-a-double-blind-randomized-placebo-controlled-trial
#12
Aria Soleimani, Mohammad Reza Habibi, Farshad Hasanzadeh Kiabi, Abbas Alipour, Valiollah Habibi, Soheil Azizi, Amir Emami Zeydi, Fatemeh Bozorg Sohrabi
BACKGROUND: Atrial fibrillation (AF) is one of the most frequently occurring dysrhythmias after coronary artery bypass graft (CABG) surgery. AIM: The aim of this study was to evaluate the effect of intravenous N-acetylcysteine (NAC) on the prevention of AF after CABG surgery. METHODS: In a double-blind, randomized controlled trial, a total of 150 patients who were scheduled for on-pump CABG surgery were randomly assigned into two groups. In group A, patients received an intravenous NAC infusion (50 mg/kg) after induction of anesthesia...
October 5, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28975638/the-roles-of-alcohol-dehydrogenase-in-patients-with-atrial-fibrillation
#13
Yu-Feng Hu, Yao-Ting Chang, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yen-Hua Huang, Tze-Tze Liu, Che-Hong Chen, Ta-Chuan Tuan, Tze-Fan Chao, Fa-Po Chung, Jo-Nan Liao, Abigail Louise D Te, Chi-Ying F Huang, Shih-Ann Chen
BACKGROUND: Alcohol consumption is known to increase the risk of atrial fibrillation (AF). Whether the genotypes of alcohol-metabolizing genes (alcohol dehydrogenase [ADH1B]) are associated with the risk of AF recurrence after catheter ablation remains unclear. METHODS AND RESULTS: The ADH1B genotypes of 281 patients who received catheter ablation for AF were examined. We followed this group of patients to monitor their AF recurrence. Alcohol consumption levels of this cohort were evaluated before and after catheter ablation...
October 3, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28971172/the-use-of-monocyte-to-hdl-ratio-to-predict-postoperative-atrial-fibrillation-after-aortocoronary-bypass-graft-surgery
#14
Ahmet Ilker Tekkesin, Mert Ilker Hayiroglu, Regayip Zehir, Ceyhan Turkkan, Muhammed Keskin, Goksel Cinier, Ahmet Taha Alper
OBJECTIVE: Postoperative atrial fibrillation (POAF) is a frequent and serious complication after aortocoronary bypass graft (ACBG) surgery and one that, unfortunately, increases morbidity and mortality. Postoperative stroke, hemodynamic instability, renal failure, infection, need for inotropic agent and coronary unit are complications caused by POAF. Inflammation and oxidative stress are among several mechanisms that contribute to pathogenesis of POAF. Monocyte to HDL (M/H) ratio is a newly defined parameter of both inflammation and oxidative stress...
2017: Northern Clinics of Istanbul
https://www.readbyqxmd.com/read/28962617/oxidative-stress-and-inflammation-as-central-mediators-of-atrial-fibrillation-in-obesity-and-diabetes
#15
REVIEW
Basil S Karam, Alejandro Chavez-Moreno, Wonjoon Koh, Joseph G Akar, Fadi G Akar
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia in humans. Several risk factors promote AF, among which diabetes mellitus has emerged as one of the most important. The growing recognition that obesity, diabetes and AF are closely intertwined disorders has spurred major interest in uncovering their mechanistic links. In this article we provide an update on the growing evidence linking oxidative stress and inflammation to adverse atrial structural and electrical remodeling that leads to the onset and maintenance of AF in the diabetic heart...
September 29, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28955393/discordant-relationships-between-systemic-inflammatory-markers-and-burden-of-oxidative-stress-in-patients-with-atrial-fibrillation
#16
Jong-Ho Nam, Kyu-Hwan Park, Jung-Hee Lee, Chan-Hee Lee, Jang-Won Son, Ung Kim, Jong-Seon Park, Dong-Gu Shin
BACKGROUND AND OBJECTIVES: Oxidative stress (OS) plays an important role in the pathophysiology of atrial fibrillation (AF) by amplifying the inflammatory cascade, wherein augmented inflammation facilitates the atrial electrical remodeling process. Few studies have investigated the possible link between systemic inflammation and OS in AF. SUBJECTS AND METHODS: A total of 220 consecutive patients with AF (117 patients) or healthy controls (103 patients) were enrolled...
September 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28955382/atrial-fibrillation-in-heart-failure-a-therapeutic-challenge-of-our-times
#17
REVIEW
Syeda Atiqa Batul, Rakesh Gopinathannair
Atrial fibrillation (AF) and heart failure (HF) are growing cardiovascular disease epidemics worldwide. There has been an exponential increase in the prevalence of AF and HF correlating with an increased burden of cardiac risk factors and improved survival rates in patients with structural heart disease. AF is associated with adverse prognostic outcomes in HF and is most evident in mild-to-moderate left ventricular (LV) dysfunction where the loss of "atrial kick" translates into poorer quality of life and increased mortality...
September 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/28948002/linking-atrial-fibrillation-with-non-alcoholic-fatty-liver-disease-potential-common-therapeutic-targets
#18
REVIEW
Ya-Hui Ding, Yuan Ma, Lin-Yan Qian, Qiang Xu, Li-Hong Wang, Dong-Sheng Huang, Hai Zou
Non-alcoholic fatty liver disease (NAFLD) and atrial fibrillation (AF) are common chronic non-infectious diseases with rising incidences. NAFLD is an independent risk factor for the onset of AF, after adjusting potentially related factors. The pathogenesis of these diseases share several mechanisms including reduced adiponectin level, insulin resistance, and renin angiotensin aldosterone system (RAAS) activation, in addition to activation of common disease pathways that promote inflammation, oxidative stress, and fibrosis...
September 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28942872/association-of-sst2-and-hs-crp-levels-with-new-onset-atrial-fibrillation-in-coronary-artery-disease
#19
Santeri Nortamo, Olavi Ukkola, Samuli Lepojärvi, Tuomas Kenttä, Antti Kiviniemi, Juhani Junttila, Heikki Huikuri, Juha Perkiömäki
BACKGROUND: The data on biomarkers as predictors of atrial fibrillation (AF) in patients with coronary artery disease (CAD) are limited. METHODS: A total of 1946 patients with CAD were recruited to the ARTEMIS study. At baseline, the study patients underwent clinical and echocardiographic examinations and had laboratory tests. The patients (n=1710) with the information about the occurrence of new-onset AF during the follow-up were included in the present analysis...
December 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28938960/galectin-3-and-incidence-of-atrial-fibrillation-the-atherosclerosis-risk-in-communities-aric-study
#20
MULTICENTER STUDY
Oluwaseun E Fashanu, Faye L Norby, David Aguilar, Christie M Ballantyne, Ron C Hoogeveen, Lin Y Chen, Elsayed Z Soliman, Alvaro Alonso, Aaron R Folsom
BACKGROUND: Galectin-3, a β-galactoside binding lectin involved in important regulatory roles in adhesion, inflammation, immunity, and fibrosis, may be relevant to atrial fibrillation (AF) etiology. METHODS: We included 8,436 participants free of AF at baseline (1996-1998) and with measures of plasma galectin-3 from the Atherosclerosis Risk in Communities study. We ascertained incident AF through 2013 from study visit electrocardiograms, hospitalizations, and death certificates...
October 2017: American Heart Journal
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