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https://www.readbyqxmd.com/read/28640644/nebivolol-alleviates-aortic-remodeling-through-enos-upregulation-and-inhibition-of-oxidative-stress-in-l-name-induced-hypertensive-rats
#1
Yan Wang, Fei Zhang, Yu Liu, Sha Yin, Xuefen Pang, Zhidong Li, Zehui Wei
PURPOSE: To investigate the effect and mechanism of nebivolol on aortic remodeling in N-nitro-l-arginine methyl ester (l-NAME)-induced hypertension. METHODS: Male Sprague-Dawley rats were treated with equal volumes of drinking water or l-NAME (60 mg/kg/day), alone or in combination with nebivolol (8 mg/kg/day) or atenolol (80 mg/kg/day) by gavage for 8 weeks. Systolic blood pressure (SBP), aortic morphometry, plasma nitric oxide (NO) levels, nitric oxide synthase (NOS) activity, and relaxation of aorta to acetylcholine were determined...
June 22, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28604886/antihypertensive-and-antioxidant-effects-of-supplementation-with-red-wine-pomace-in-spontaneously-hypertensive-rats
#2
Raquel Del Pino-García, María D Rivero-Pérez, María L González-SanJosé, Kevin D Croft, Pilar Muñiz
Hypertension is associated with enhanced vascular oxidative stress and impaired endothelial function, which is related to an imbalance between reactive oxygen species and nitric oxide bioavailability. Short-term supplementation with a polyphenol-rich powdered red wine pomace seasoning (RWPS) was investigated for its effects on blood pressure and biomarkers of endothelial dysfunction and oxidative status in a model of essential hypertension. Male spontaneously hypertensive rats (SHRs) and normotensive Wistar-Kyoto rats (12-week-old, 5 rats per group) were administered RWPS (300 mg kg(-1) day(-1); equivalent to 7...
June 12, 2017: Food & Function
https://www.readbyqxmd.com/read/28592194/2-3-4-4-5-pentachlorobiphenyl-impairs-insulin-induced-no-production-partly-through-excessive-ros-production-in-endothelial-cells
#3
Yang Long, Can Huang, Jian Wu, Jin-Nan Cheng, Guan-Nan Liang, Chun-Xia Jiang, Qin Wan
Polychlorinated biphenyls (PCBs) have been reported to be associated with increased risk to hypertension, atherosclerosis, cardiovascular disease, et al. 2,3',4,4',5-Pentachlorobiphenyl, known as PCB118, is a member of coplanar PCBs which renders their structure similar to polychlorinated dibenzo-p-dioxins (PCDDs) and has dioxin-like activity. In our current study, we investigated the effect of PCB118 exposure on nitric oxide (NO) production and the underlying mechanisms in vitro. Exposure of PCB 118 impaired insulin-induced NO production and endothelial nitric oxide synthase (eNOS) activity in human umbilical vein endothelial cells (HUVECs) with no significant effect on cell viability...
June 7, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28585207/endothelial-dysfunction-in-obesity
#4
Atilla Engin
Chronic inflammatory state in obesity causes dysregulation of the endocrine and paracrine actions of adipocyte-derived factors, which disrupt vascular homeostasis and contribute to endothelial vasodilator dysfunction and subsequent hypertension. While normal healthy perivascular adipose tissue (PVAT) ensures the dilation of blood vessels, obesity-associated PVAT leads to a change in profile of the released adipo-cytokines, resulting in a decreased vasorelaxing effect. Adipose tissue inflammation, nitric oxide (NO)-bioavailability, insulin resistance and oxidized low-density lipoprotein (oxLDL) are main participating factors in endothelial dysfunction of obesity...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28579545/oxidative-stress-and-reactive-oxygen-species-in-endothelial-dysfunction-associated-with-cardiovascular-and-metabolic-diseases
#5
REVIEW
Maria Angela Incalza, Rossella D'Oria, Annalisa Natalicchio, Sebastio Perrini, Luigi Laviola, Francesco Giorgino
Reactive oxygen species (ROS) are reactive intermediates of molecular oxygen that act as important second messengers within the cells; however, an imbalance between generation of reactive ROS and antioxidant defense systems represents the primary cause of endothelial dysfunction, leading to vascular damage in both metabolic and atherosclerotic diseases. Endothelial activation is the first alteration observed, and is characterized by an abnormal pro-inflammatory and pro-thrombotic phenotype of the endothelial cells lining the lumen of blood vessels...
June 1, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28539257/propranolol-treatment-lowers-blood-pressure-reduces-vascular-inflammatory-markers-and-improves-endothelial-function-in-obese-mice
#6
Nathalia da Silva Franco, Camila Lubaczeuski, Daniele M Guizoni, Jamaira A Victorio, Junia C Santos-Silva, Patricia C Brum, Everardo M Carneiro, Ana P Davel
Obesity-associated hypertension is accompanied by a number of cardiovascular risk factors including vascular insulin resistance (IR) and higher sympathetic nervous activity. Therefore, autonomic blockade was demonstrated to reverse hypertension, endothelial dysfunction and IR in obese individuals. We hypothesized that β-AR blockade with propranolol would restore endothelial function and vascular insulin signaling in obesity, associated with an anti-inflammatory effect. Body weight, systolic blood pressure (SBP), plasma biochemical parameters and aortic endothelial function were analyzed in mice fed standard diet (control group) or a high fat diet (HFD) that were treated with vehicle (water) or propranolol (10mg/kg/day) for 8weeks...
May 21, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28534086/neuronal-nitric-oxide-synthase-modulation-of-intracellular-ca-2-handling-overrides-fatty-acid-potentiation-of-cardiac-inotropy-in-hypertensive-rats
#7
Chun Li Jin, Ming Zhe Yin, Jin Chul Paeng, Seunggyun Ha, Jeong Hoon Lee, Peng Jin, Chun Zi Jin, Zai Hao Zhao, Yue Wang, Keon Wook Kang, Chae Hun Leem, Jong-Wan Park, Sung Joon Kim, Yin Hua Zhang
Cardiac neuronal nitric oxide synthase (nNOS) is an important molecule that regulates intracellular Ca(2+) homeostasis and contractility of healthy and diseased hearts. Here, we examined the effects of nNOS on fatty acid (FA) regulation of left ventricular (LV) myocyte contraction in sham and angiotensin II (Ang II)-induced hypertensive (HTN) rats. Our results showed that palmitic acid (PA, 100 μM) increased the amplitudes of sarcomere shortening and intracellular ATP in sham but not in HTN despite oxygen consumption rate (OCR) was increased by PA in both groups...
May 22, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28509730/american-college-of-critical-care-medicine-clinical-practice-parameters-for-hemodynamic-support-of-pediatric-and-neonatal-septic-shock
#8
Alan L Davis, Joseph A Carcillo, Rajesh K Aneja, Andreas J Deymann, John C Lin, Trung C Nguyen, Regina S Okhuysen-Cawley, Monica S Relvas, Ranna A Rozenfeld, Peter W Skippen, Bonnie J Stojadinovic, Eric A Williams, Tim S Yeh, Fran Balamuth, Joe Brierley, Allan R de Caen, Ira M Cheifetz, Karen Choong, Edward Conway, Timothy Cornell, Allan Doctor, Marc-Andre Dugas, Jonathan D Feldman, Julie C Fitzgerald, Heidi R Flori, James D Fortenberry, Ana Lia Graciano, Bruce M Greenwald, Mark W Hall, Yong Yun Han, Lynn J Hernan, Jose E Irazuzta, Elizabeth Iselin, Elise W van der Jagt, Howard E Jeffries, Saraswati Kache, Chhavi Katyal, Niranjan Tex Kissoon, Alexander A Kon, Martha C Kutko, Graeme MacLaren, Timothy Maul, Renuka Mehta, Fola Odetola, Kristine Parbuoni, Raina Paul, Mark J Peters, Suchitra Ranjit, Karin E Reuter-Rice, Eduardo J Schnitzler, Halden F Scott, Adalberto Torres, Jacki Weingarten-Abrams, Scott L Weiss, Jerry J Zimmerman, Aaron L Zuckerberg
OBJECTIVES: The American College of Critical Care Medicine provided 2002 and 2007 guidelines for hemodynamic support of newborn and pediatric septic shock. Provide the 2014 update of the 2007 American College of Critical Care Medicine "Clinical Guidelines for Hemodynamic Support of Neonates and Children with Septic Shock." DESIGN: Society of Critical Care Medicine members were identified from general solicitation at Society of Critical Care Medicine Educational and Scientific Symposia (2006-2014)...
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28494828/treatment-of-persistent-pulmonary-hypertension-of-the-newborn-use-of-pulmonary-vasodilators-in-term-neonates
#9
Caitlyn Luecke, Christopher McPherson
Persistent pulmonary hypertension of the newborn (PPHN) represents a challenging condition associated with significant morbidity. A successful transition from intrauterine to extrauterine life is contingent on adequate pulmonary vasodilation. Several pathophysiologies contribute to the failure of this cascade and may result in life-threatening hypoxia and acidosis in the newborn. Management includes optimal respiratory support, adequate sedation and analgesia, and support of vascular tone and cardiac function...
May 1, 2017: Neonatal Network: NN
https://www.readbyqxmd.com/read/28483819/short-term-and-long-term-outcomes-of-preterm-neonates-with-acute-severe-pulmonary-hypertension-following-rescue-treatment-with-inhaled-nitric-oxide
#10
Michelle Baczynski, Shannon Ginty, Dany E Weisz, Patrick J McNamara, Edmond Kelly, Prakeshkumar Shah, Amish Jain
OBJECTIVE: To describe short-term and long-term outcomes of preterm neonates with severe acute pulmonary hypertension (aPHT) in relation to response to rescue inhaled nitric oxide (iNO) therapy. DESIGN: Retrospective cohort studyover a 6 year period. SETTING: Tertiary neonatal intensive care unit. PATIENTS: 89 neonates <35 weeks gestational age (GA) who received rescue iNO for aPHT, including 62 treated at ≤3 days of age (early aPHT)...
May 8, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28472876/effect-of-inhaled-nitric-oxide-on-oxygen-therapy-mechanical-ventilation-and-hypoxic-respiratory-failure
#11
Dan L Stewart, Paul A Vogel, Brant Jarrett, Jim Potenziano
To assess the role of inhaled nitric oxide (iNO) in reducing the need for oxygen therapy, decreasing time on mechanical ventilatory support, and attenuating probability of hypoxic respiratory failure severity progression, we reviewed published reports of phase III iNO studies in neonates with hypoxic respiratory failure and pulmonary hypertension, as well as a novel post hoc analysis of data from the Clinical Inhaled Nitric Oxide Research Group Initiative (CINRGI) study population not been previously reported...
May 4, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28439717/negligible-effect-of-enos-palmitoylation-on-fatty-acid-regulation-of-contraction-in-ventricular-myocytes-from-healthy-and-hypertensive-rats
#12
Chun Li Jin, Yu Na Wu, Ji Hyun Jang, Zai Hao Zhao, Goo Taeg Oh, Sung Joon Kim, Yin Hua Zhang
S-palmitoylation is an important post-translational modification that affects the translocation and the activity of target proteins in a variety of cell types including cardiomyocytes. Since endothelial nitric oxide synthase (eNOS) is known to be palmitoylated and the activity of eNOS is essential in fatty acid-dependent β-oxidation in muscle, we aimed to test whether palmitoylation of eNOS is involved in palmitic acid (PA) regulation of left ventricular (LV) myocyte contraction from healthy (sham) and hypertensive (HTN) rats...
April 25, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28437655/peripheral-artery-disease-redox-signaling-oxidative-stress-basic-and-clinical-aspects
#13
REVIEW
Sebastian Steven, Andreas Daiber, Jörn F Dopheide, Thomas Münzel, Christine Espinola-Klein
Reactive oxygen and nitrogen species (ROS and RNS, e.g. H2O2, nitric oxide) confer redox regulation of essential cellular signaling pathways such as cell differentiation, proliferation, migration and apoptosis. At higher concentrations, ROS and RNS lead to oxidative stress and oxidative damage of biomolecules (e.g. via formation of peroxynitrite, fenton chemistry). Peripheral artery disease (PAD) is characterized by severe ischemic conditions in the periphery leading to intermittent claudication and critical limb ischemia (end stage)...
August 2017: Redox Biology
https://www.readbyqxmd.com/read/28411000/meconium-aspiration-or-respiratory-distress-associated-with%C3%A2-meconium-stained-amniotic-fluid
#14
REVIEW
Nestor E Vain, Daniel G Batton
The designation meconium aspiration syndrome (MAS) reflects a spectrum of disorders in infants born with meconium-stained amniotic fluid, ranging from mild tachypnea to severe respiratory distress and significant mortality. The frequency of MAS is highest among infants with post-term gestation, thick meconium, and birth asphyxia. Pulmonary hypertension is an important component in severe cases. Prenatal hypopharyngeal suctioning and postnatal endotracheal intubation and suctioning of vigorous infants are not effective...
April 11, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28399868/4-5-4-trihydroxychalcone-8-8-ethene-1-2-diyl-dinaphtalene-1-4-5-triol-and-rutin-from-gynura-segetum-inhibit-phagocytosis-lymphocyte-proliferation-cytokine-release-and-nitric-oxide-production-from-phagocytic-cells
#15
Yuandani, Ibrahim Jantan, Khairana Husain
BACKGROUND: Gynura segetum is used traditionally to treat various ailments related to the immune system, which include cancer, inflammation, rheumatism, diabetes, hypertension, and viral infections but little studies have been carried out to validate their ethnopharmacological aspects. In this study the immunosuppressive effects of G. segetum and its constituents were investigated. METHODS: Isolation of compounds from G. segetum leaves was conducted using vacuum liquid chromatography (VLC) and column chromatography (CC)...
April 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28389034/nitric-oxide-a-new-possible-biomarker-in-heart-failure-relationship-with-pulmonary-hypertension-secondary-to-left-heart-failure
#16
Roberto Jorge Bonafede, Juan Pablo Calvo, Julia María Valeria Fausti, Sonia Puebla, Adolfo Juan Gambarte, Walter Manucha
Heart failure (HF) is a growing medical problem and it is of interest to study new biomarkers for better characterisation. In this sense, nitric oxide, reactive oxygen species (ROS), NADPH, and superoxide dismutase (SOD) were evaluated, along with their possible predictive value in patients with HF. An analysis was also performed on the potential differences between patients with and without secondary pulmonary hypertension (SPH), considered to have a worse prognosis. A significant decrease of nitric oxide and SOD was noted in HF, whereas ROS and NADPH were increased...
April 5, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28356289/sex-specific-computational-models-of-the-spontaneously-hypertensive-rat-kidneys-factors-affecting-nitric-oxide-bioavailability
#17
Ying Chen, Jennfier C Sullivan, Aurélie Edwards, Anita T Layton
The goals of this study were to (i) develop a computational model of solute transport and oxygenation in the kidney of the female spontaneously hypertensive rat (SHR), and (ii) apply that model to investigate sex differences in nitric oxide (NO) levels in SHR and their effects on medullary oxygenation and oxidative stress. To accomplish these goals, we first measured NO synthase (NOS) NOS1 and NOS3 protein expression levels in the renal microvessels of male and female SHR. We found that the expression of both NOS1 and NOS3 is higher in the renal vasculature of females compared to males...
March 29, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28338370/the-potential-of-stimulating-nitric-oxide-formation-in-the-treatment-of-hypertension
#18
REVIEW
Lucas C Pinheiro, Jose E Tanus-Santos, Michele M Castro
Hypertension is a leading cause of morbidity and mortality worldwide. A major pathophysiological factor contributing to hypertension is reduced nitric oxide (NO) bioavailability. Strategies to address this pathophysiological mechanism could offer significant advantages. Areas covered: In this review we aimed at examining a variety of drugs (statins, beta-adrenergic receptor blockers, calcium channel blockers, angiotensin converting enzyme inhibitors, angiotensin II type-1 receptor blockers) used to treat hypertension and other cardiovascular diseases, particularly with respect to their potential of increasing NO bioavailability and activity in the cardiovascular system...
May 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28331629/congenital-diaphragmatic-hernia-a-review
#19
REVIEW
Praveen Kumar Chandrasekharan, Munmun Rawat, Rajeshwari Madappa, David H Rothstein, Satyan Lakshminrusimha
Congenital Diaphragmatic hernia (CDH) is a condition characterized by a defect in the diaphragm leading to protrusion of abdominal contents into the thoracic cavity interfering with normal development of the lungs. The defect may range from a small aperture in the posterior muscle rim to complete absence of diaphragm. The pathophysiology of CDH is a combination of lung hypoplasia and immaturity associated with persistent pulmonary hypertension of newborn (PPHN) and cardiac dysfunction. Prenatal assessment of lung to head ratio (LHR) and position of the liver by ultrasound are used to diagnose and predict outcomes...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28252041/protective-effects-of-nebivolol-from-oxidative-stress-to-prevent-hypertension-related-target-organ-damage
#20
REVIEW
A Coats, S Jain
Hypertension is one of the leading risk factors for morbidity and mortality in patients with cardiovascular and cerebrovascular diseases and renal impairment. It also leads to target organ damage (TOD), which worsens organ function and the patient's clinical status. Reactive oxygen species (ROS)-mediated oxidative stress may contribute significantly to TOD in patients with hypertension. NO (nitric oxide) is a paracrine factor derived from endothelial cells that has been shown to alleviate ROS-mediated oxidative damage...
June 2017: Journal of Human Hypertension
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