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https://www.readbyqxmd.com/read/28102478/influence-of-inflammation-and-atherosclerosis-in-atrial-fibrillation
#1
REVIEW
Rose Mary Ferreira Lisboa da Silva
BACKGROUND: Inflammation markers have been associated with cardiovascular diseases including atrial fibrillation. This arrhythmia is the most frequent, with an incidence of 38/1000 person-years. PURPOSE OF REVIEW: The aims of this study are to discuss the association between inflammation, atherosclerosis and atrial fibrillation and its clinical implications. Atherosclerosis is a chronic inflammatory disease and inflammation is a triggering factor of atherosclerotic plaque rupture...
January 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28101123/regulatory-landscape-of-age-rage-oxidative-stress-axis-and-its-modulation-by-ppar%C3%AE-activation-in-high-fructose-diet-induced-metabolic-syndrome
#2
Luca Cannizzaro, Giuseppe Rossoni, Federica Savi, Alessandra Altomare, Cristina Marinello, Thammakorn Saethang, Marina Carini, D Michael Payne, Trairak Pisitkun, Giancarlo Aldini, Asada Leelahavanichkul
BACKGROUND: The AGE-RAGE-oxidative stress (AROS) axis is involved in the onset and progression of metabolic syndrome induced by a high-fructose diet (HFD). PPARγ activation is known to modulate metabolic syndrome; however a systems-level investigation looking at the protective effects of PPARγ activation as related to the AROS axis has not been performed. The aim of this work is to simultaneously characterize multiple molecular parameters within the AROS axis, using samples taken from different body fluids and tissues of a rat model of HFD-induced metabolic syndrome, in the presence or absence of a PPARγ agonist, Rosiglitazone (RGZ)...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28100853/antioxidant-and-antimicrobial-properties-of-bioactive-phytochemicals-from-cranberry
#3
Monika Baranowska, Agnieszka Bartoszek
In the rational human diet, the important role of fruits and vegetables, which are a source of bioactive phytochemicals, is emphasized. Among fruits particular attention, due to a number of documented health-promoting properties, is focused on cranberry. This fruit is characterized by the high content of antioxidant phenolic compounds, which may support the natural antioxidant defense system of the body in the prevention of damage caused by oxidative stress induced by reactive oxygen species (ROS). Therefore, cranberry is suggested for the prevention of civilization diseases such as atherosclerosis, hypertension and cancer, whose etiology is associated directly with oxidative stress...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100277/stress-echo-2020-the-international-stress-echo-study-in-ischemic-and-non-ischemic-heart-disease
#4
Eugenio Picano, Quirino Ciampi, Rodolfo Citro, Antonello D'Andrea, Maria Chiara Scali, Lauro Cortigiani, Iacopo Olivotto, Fabio Mori, Maurizio Galderisi, Marco Fabio Costantino, Lorenza Pratali, Giovanni Di Salvo, Eduardo Bossone, Francesco Ferrara, Luna Gargani, Fausto Rigo, Nicola Gaibazzi, Giuseppe Limongelli, Giuseppe Pacileo, Maria Grazia Andreassi, Bruno Pinamonti, Laura Massa, Marco A R Torres, Marcelo H Miglioranza, Clarissa Borguezan Daros, José Luis de Castro E Silva Pretto, Branko Beleslin, Ana Djordjevic-Dikic, Albert Varga, Attila Palinkas, Gergely Agoston, Dario Gregori, Paolo Trambaiolo, Sergio Severino, Ayana Arystan, Marco Paterni, Clara Carpeggiani, Paolo Colonna
BACKGROUND: Stress echocardiography (SE) has an established role in evidence-based guidelines, but recently its breadth and variety of applications have extended well beyond coronary artery disease (CAD). We lack a prospective research study of SE applications, in and beyond CAD, also considering a variety of signs in addition to regional wall motion abnormalities. METHODS: In a prospective, multicenter, international, observational study design, > 100 certified high-volume SE labs (initially from Italy, Brazil, Hungary, and Serbia) will be networked with an organized system of clinical, laboratory and imaging data collection at the time of physical or pharmacological SE, with structured follow-up information...
January 18, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28099583/swimming-training-prevents-coronary-endothelial-dysfunction-in-ovariectomized-spontaneously-hypertensive-rats
#5
E R G Claudio, S A Almeida, V Mengal, G A Brasil, C H Santuzzi, R V Tiradentes, S A Gouvea, N S Bissoli, R L Santos, G R Abreu
Estrogen deficiency and hypertension are considered major risk factors for the development of coronary heart disease. On the other hand, exercise training is considered an effective form to prevent and treat cardiovascular diseases. However, the effects of swimming training (SW) on coronary vascular reactivity in female ovariectomized hypertensive rats are not known. We aimed to evaluate the effects of SW on endothelium-dependent coronary vasodilation in ovariectomized hypertensive rats. Three-month old spontaneously hypertensive rats (SHR, n=50) were divided into four groups: sham (SH), sham plus swimming training (SSW), ovariectomized (OVX), and ovariectomized plus swimming training (OSW)...
January 16, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28098082/occupational-health-profile-of-workers-employed-in-the-manufacturing-sector-of-india
#6
REVIEW
Shivali Suri, Ranjan Das
BACKGROUND: The occupational health scenario of workers engaged in the manufacturing sector in India deserves attention for their safety and increasing productivity. We reviewed the status of the manufacturing sector, identified hazards faced by workers, and assessed the existing legislations and healthcare delivery mechanisms. METHODS: From October 2014 to March 2015, we did a literature review by manual search of pre-identified journals, general electronic search, electronic search of dedicated websites/databases and personal communication with experts of occupational health...
September 2016: National Medical Journal of India
https://www.readbyqxmd.com/read/28093508/vertical-sleeve-gastrectomy-reduces-blood-pressure-and-hypothalamic-endoplasmic-reticulum-stress-in-mice
#7
Anne K McGavigan, Zachariah M Henseler, Darline Garibay, Scott D Butler, Sisitha Jayasinghe, Ruth E Ley, Robin L Davisson, Bethany P Cummings
Bariatric surgery, such as vertical sleeve gastrectomy (VSG), causes remarkable improvements in cardiometabolic health, including hypertension remission. However, the mechanisms responsible remain undefined and poorly studied. Therefore, we developed and validated the first murine model of VSG that recapitulates the blood pressure lowering effect of VSG using gold-standard radiotelemetry technology. We used this model to investigate several potential mechanisms, including body weight, brain endoplasmic reticulum (ER) stress signaling and brain inflammatory signaling, all critical contributors to obesity-associated hypertension pathogenesis...
January 12, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28092664/expression-of-specific-inflammasome-gene-modules-stratifies-older-individuals-into-two-extreme-clinical-and-immunological-states
#8
David Furman, Junlei Chang, Lydia Lartigue, Christopher R Bolen, François Haddad, Brice Gaudilliere, Edward A Ganio, Gabriela K Fragiadakis, Matthew H Spitzer, Isabelle Douchet, Sophie Daburon, Jean-François Moreau, Garry P Nolan, Patrick Blanco, Julie Déchanet-Merville, Cornelia L Dekker, Vladimir Jojic, Calvin J Kuo, Mark M Davis, Benjamin Faustin
Low-grade, chronic inflammation has been associated with many diseases of aging, but the mechanisms responsible for producing this inflammation remain unclear. Inflammasomes can drive chronic inflammation in the context of an infectious disease or cellular stress, and they trigger the maturation of interleukin-1β (IL-1β). Here we find that the expression of specific inflammasome gene modules stratifies older individuals into two extremes: those with constitutive expression of IL-1β, nucleotide metabolism dysfunction, elevated oxidative stress, high rates of hypertension and arterial stiffness; and those without constitutive expression of IL-1β, who lack these characteristics...
January 16, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28090300/bk-channels-in-rat-and-human-pulmonary-smooth-muscle-cells-are-bk%C3%AE-%C3%AE-1-functional-complexes-lacking-the-oxygen-sensitive-stress-axis-regulated-exon-insert
#9
Neil D Detweiler, Li Song, Samantha J McClenahan, Rachel J Versluis, Sujay V Kharade, Richard C Kurten, Sung W Rhee, Nancy J Rusch
A loss of K(+) efflux in pulmonary arterial smooth muscle cells (PASMCs) contributes to abnormal vasoconstriction and PASMC proliferation during pulmonary hypertension (PH). Activation of high-conductance Ca(2+)-activated (BK) channels represents a therapeutic strategy to restore K(+) efflux to the affected PASMCs. However, the properties of BK channels in PASMCs-including sensitivity to BK channel openers (BKCOs)-are poorly defined. The goal of this study was to compare the properties of BK channels between PASMCs of normoxic (N) and chronic hypoxic (CH) rats and then explore key findings in human PASMCs...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28088113/modulatory-effect-of-vanillic-acid-on-antioxidant-status-in-high-fat-diet-induced-changes-in-diabetic-hypertensive-rats
#10
Kolanji Vinothiya, Natarajan Ashokkumar
The worldwide incidence of diabetes has increased dramatically along with widespread lifestyle and dietary changes. Diets high in fat are strongly associated with the development of obesity and can induce insulin resistance in humans and animals. It is clear that obesity constitutes a risk factor for contributing to the development of type 2 diabetes. In the present study, we investigated the therapeutic potential action of vanillic acid on diabetes associated complications using a rat model. Rats were made diabetic hypertensive by high fat diet (HFD) for 20 weeks and were treated with vanillic acid (50mg/kg bw) for last 8 weeks...
January 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28087957/cardiovascular-risk-assessment-between-urban-and-rural-population-in-malaysia
#11
I Noor Hassim, M R Norazman, M Diana, Y Khairul Hazdi, I Rosnah
INTRODUCTION: Cardiovascular disease (CVD) caused significant burden to Malaysia as it accounted for 36% of total deaths. This study aims to evaluate the burden of cardiovascular risk factors among Malaysian adult and assess the difference between urban and rural population in the selected communities. METHODS: This study is part of the ongoing Prospective Urban Rural Epidemiology (PURE) database, whereby the baseline data were collected since June 2008. CVD risk was measured using INTERHEART risk score which comprised of eleven risk factors i...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28087333/nicotinamide-nucleotide-transhydrogenase-activity-impacts-mitochondrial-redox-balance-and-the-development-of-hypertension-in-mice
#12
Igor Leskov, Amber Neville, Xinggui Shen, Sibile Pardue, Christopher G Kevil, D Neil Granger, David M Krzywanski
Oxidant stress contributes to the initiation and progression of hypertension (HTN) by enhancing endothelial dysfunction and/or causing perturbations in nitric oxide homeostasis. Differences in mitochondrial function may augment this process and provide insight into why age of onset and clinical outcomes differ among individuals from distinct ethnic groups. We have previously demonstrated that variation in normal mitochondrial function and oxidant production exists in endothelial cells from individuals of Caucasian and African-American ethnicity and that this variation contributes to endothelial dysfunction...
December 16, 2016: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28087295/postconditioning-induced-neuroprotection-mechanisms-and-applications-in-cerebral-ischemia
#13
REVIEW
Yan-Ying Fan, Wei-Wei Hu, Fang Nan, Zhong Chen
Ischemic postconditioning (PostC) is defined as a series of rapid intermittent interruptions of blood flow at the phase of reperfusion, which produces neuroprotection against cerebral ischemia/reperfusion injury via mobilizing the brain's own endogenous adaptive mechanisms. Now the concept of conventional ischemic PostC has been extended to limb remote ischemic PostC and chemical PostC with hypoxia, volatile anesthetic, CO2, etc. According to the different temporal profile of PostC, it is divided into rapid and delayed PostC...
January 10, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28086863/exercise-mediated-protection-of-diabetic-heart-through-modulation-of-microrna-mediated-molecular-pathways
#14
REVIEW
Jason Kar Sheng Lew, James T Pearson, Daryl O Schwenke, Rajesh Katare
Hyperglycaemia, hypertension, dyslipidemia and insulin resistance collectively impact on the myocardium of people with diabetes, triggering molecular, structural and myocardial abnormalities. These have been suggested to aggravate oxidative stress, systemic inflammation, myocardial lipotoxicity and impaired myocardial substrate utilization. As a consequence, this leads to the development of a spectrum of cardiovascular diseases, which may include but not limited to coronary endothelial dysfunction, and left ventricular remodelling and dysfunction...
January 13, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28081152/increased-serum-sodium-and-serum-osmolarity-are-independent-risk-factors-for-developing-chronic-kidney-disease-5-year-cohort-study
#15
Masanari Kuwabara, Ichiro Hisatome, Carlos A Roncal-Jimenez, Koichiro Niwa, Ana Andres-Hernando, Thomas Jensen, Petter Bjornstad, Tamara Milagres, Christina Cicerchi, Zhilin Song, Gabriela Garcia, Laura G Sánchez-Lozada, Minoru Ohno, Miguel A Lanaspa, Richard J Johnson
BACKGROUND: Epidemics of chronic kidney disease (CKD) not due to diabetes mellitus (DM) or hypertension have been observed among individuals working in hot environments in several areas of the world. Experimental models have documented that recurrent heat stress and water restriction can lead to CKD, and the mechanism may be mediated by hyperosmolarity that activates pathways (vasopressin, aldose reductase-fructokinase) that induce renal injury. Here we tested the hypothesis that elevated serum sodium, which reflects serum osmolality, may be an independent risk factor for the development of CKD...
2017: PloS One
https://www.readbyqxmd.com/read/28079595/acetylated-cyclophilin-a-is-a-major-mediator-in-hypoxia-induced-autophagy-and-pulmonary-vascular-angiogenesis
#16
Min Mao, Xiufeng Yu, Xin Ge, Rui Gu, Qian Li, Shasha Song, Xiaodong Zheng, Tingting Shen, Xuecang Li, Yao Fu, Jiali Li, Daling Zhu
BACKGROUND: Autophagy is a major intracellular degradation and recycling process that maintains cellular homeostasis, which is involved in structural and functional abnormalities of pulmonary vasculature in hypoxic pulmonary arterial hypertension (HPAH). Cyclophilin A (CyPA) is a secreted, oxidative stress-induced factor. Its role in inducing autophagy and augmenting endothelial cell dysfunction has never been explored. METHODS: Lungs from rats exposed to chronic hypoxia were examined for autophagy with electron microscopy, western blotting, and fluorescence microscopy...
January 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28078487/the-role-of-the-nox4-derived-ros-mediated-rhoa-rho-kinase-pathway-in-rat-hypertension-induced-by-chronic-intermittent-hypoxia
#17
Wen Lu, Jing Kang, Ke Hu, Si Tang, Xiufang Zhou, Lifang Xu, Yuanyuan Li, Shuhui Yu
BACKGROUND: Obstructive sleep apnea syndrome, which is a risk factor for resistant hypertension, is characterized by chronic intermittent hypoxia (CIH) and is associated with many cardiovascular diseases. CIH elicits systemic oxidative stress and sympathetic hyperactivity, which lead to hypertension. Rho kinases (ROCKs) are considered to be major effectors of the small GTPase RhoA and have been extensively studied in the cardiovascular field. Upregulation of the RhoA/ROCK signaling cascade is observed in various cardiovascular disorders, such as atherosclerosis, pulmonary hypertension, and stroke...
January 11, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28078262/the-leaf-of-diospyros-kaki-thumb-ameliorates-renal-oxidative-damage-in-mice-with-type-2-diabetes
#18
Myung-Sook Choi, Mi Ji Jeong, Yong Bok Park, Sang Ryong Kim, Un Ju Jung
Diabetic kidney disease is the most common and severe chronic complication of diabetes. The leaf of Diospyros kaki Thumb (persimmon) has been commonly used for herbal tea and medicinal purposes to treat a variety of conditions, including hypertension and atherosclerosis. However, the effect of persimmon leaf on kidney failure has not been investigated. This study aimed to examine the role of persimmon leaf in protecting the diabetes-associated kidney damage in a mouse model of type 2 diabetes. Mice were fed either a normal chow diet with or without powered persimmon leaf (5%, w/w) for 5 weeks...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28077904/regadenoson-in-myocardial-perfusion-study-first-institutional-experiences-in-bosnia-and-herzegovina
#19
Nermina Beslic, Renata Milardovic, Amera Sadija, Sejla Ceric, Zeljka Raic
INTRODUCTION: Myocardial perfusion imaging (MPI) is widely used in the evaluation of known and suspected coronary artery disease (CAD). Imaging of heart in stress and rest enables the comparison of myocardial uptake of radiotracer in proportion to the needs and coronary flow, which is used for detection of perfusion defects. Exercise stress and pharmacologic agents are used for the stressing purpose. Novel pharmacologic stressor regadenoson is A2A selective adenosine agonist, which selectively binds to the adenosine receptors in coronary arteries causing coronary dilatation...
December 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28077855/the-nox2-derived-reactive-oxygen-species-damaged-endothelial-nitric-oxide-system-via-suppressed-bkca-skca-in-preeclampsia
#20
Jie Chen, Qinqin Gao, Lin Jiang, Xueqin Feng, Xiaolin Zhu, Xiaorong Fan, Caiping Mao, Zhice Xu
The endothelial nitric oxide (NO) system may be damaged in preeclampsia; however, the involved mechanisms are unclear. In this study, we used primary human umbilical vein endothelial cells (HUVECs) to evaluate the endothelial NO system in preeclampsia and to determine the underlying mechanisms that are involved. We isolated and cultured HUVECs from normal and preeclamptic pregnancies and evaluated endothelial NO synthase enzyme (eNOS) expression and NO production. Whole-cell K(+) currents and oxidative stress were also determined in normal and preeclamptic HUVECs...
January 12, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
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