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https://www.readbyqxmd.com/read/29070768/effect-of-growth-hormone-replacement-therapy-on-plasma-diacron-reactive-oxygen-metabolites-and-endothelial-function-in-japanese-patients-the-great-clinical-study
#1
Kunihiro Suzuki, Kazunori Yanagi, Masanori Shimizu, Sho Wakamatsu, Takafumi Niitani, Soichiro Hosonuma, Masaaki Sagara, Yoshimasa Aso
Patients with growth hormone deficiency (GHD) have an increased risk of atherosclerosis and vascular mortality. Evidence suggests that endothelial dysfunction is involved in all stages of atherogenesis. This study examined the effect of growth hormone (GH) replacement therapy on diacron-reactive oxygen metabolites (d-ROMs) and endothelial function in Japanese patients with GHD, using peripheral arterial tonometry. This was an open-label, prospective, case-control study. Nine patients with GHD who had not previously received any GH replacement therapy were enrolled...
October 25, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29044805/the-relationship-between-forearm-skin-speed-resolved-perfusion-and-oxygen-saturation-and-finger-arterial-pulsation-amplitudes-as-indirect-measures-of-endothelial-function
#2
Sara Bergstrand, Maria-Aurora Morales, Giuseppe Coppini, Marcus Larsson, Tomas Strömberg
OBJECTIVE: Endothelial function is important for regulating peripheral blood flow to meet varying metabolic demands and can be measured indirectly during vascular provocations. In this study, we compared the peripheral arterial tonometry finger response (EndoPAT) after a 5 min arterial occlusion to that from forearm skin comprehensive microcirculation analysis (Enhanced Perfusion and Oxygen Saturation, EPOS). METHOD: Measurements in 16 subjects with varying cardiovascular risk factors were done concurrently with both methods during arterial occlusion, while forearm skin was also evaluated during local heating RESULTS: Peak values for EPOS skin conventional perfusion and speed resolved total perfusion after the release of the occlusion, were significantly correlated to the EndoPAT reactive hyperemia index (RHI; ρ=0...
October 16, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28922226/effect-of-high-inspiratory-oxygen-fraction-on-endothelial-function-in-healthy-volunteers-a-randomized-controlled-crossover-pilot-study
#3
RANDOMIZED CONTROLLED TRIAL
Mikkel Hjordt Holm Larsen, Sarah Ekeloef, Dunja Kokotovic, Anne-Marie Schou-Pedersen, Jens Lykkesfeldt, Ismail Gögenür
It has been suggested that high inspiratory oxygen concentrations during anesthesia may be associated with higher postoperative mortality due to endothelial dysfunction. A randomized controlled crossover study was conducted with 25 healthy male volunteers. They inhaled an oxygen concentration of 30% and 80%. The endothelial function was assessed using noninvasive digital pulse amplitude tonometry (EndoPAT) supported by endothelial biomarkers. The difference in endothelial function between the 2 treatments was 0...
November 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28893762/sleep-disordered-breathing-in-acute-ischemic-stroke-a-mechanistic-link-to-peripheral-endothelial-dysfunction
#4
Nadja Scherbakov, Anja Sandek, Nicole Ebner, Miroslava Valentova, Alexander Heinrich Nave, Ewa A Jankowska, Jörg C Schefold, Stephan von Haehling, Stefan D Anker, Ingo Fietze, Jochen B Fiebach, Karl Georg Haeusler, Wolfram Doehner
BACKGROUND: Sleep-disordered breathing (SDB) after acute ischemic stroke is frequent and may be linked to stroke-induced autonomic imbalance. In the present study, the interaction between SDB and peripheral endothelial dysfunction (ED) was investigated in patients with acute ischemic stroke and at 1-year follow-up. METHODS AND RESULTS: SDB was assessed by transthoracic impedance records in 101 patients with acute ischemic stroke (mean age, 69 years; 61% men; median National Institutes of Health Stroke Scale, 4) while being on the stroke unit...
September 11, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28801846/vascular-function-in-breast-cancer-survivors-on-aromatase-inhibitors-a-pilot-study
#5
Anne Blaes, Heather Beckwith, Natalia Florea, Robert Hebbel, Anna Solovey, David Potter, Douglas Yee, Rachel Vogel, Russell Luepker, Daniel Duprez
PURPOSE: Aromatase inhibitors (AI) have been shown to reduce breast cancer-related mortality in women with estrogen positive (ER+) breast cancer. The use of AIs, however, has been associated with higher rates of hypertension, hyperlipidemia, and cardiovascular (CV) events. METHODS: A cross-sectional study of 25 healthy postmenopausal women and 36 women with curative intent breast cancer on an AI was performed to assess endothelial dysfunction, an indicator of risk for CV events...
August 11, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28797281/the-efficacy-of-transcutaneous-electrical-nerve-stimulation-on-the-improvement-of-walking-distance-in-patients-with-peripheral-arterial-disease-with-intermittent-claudication-study-protocol-for-a-randomised-controlled-trial-the-tens-pad-study
#6
Florent Besnier, Jean-Michel Sénard, Vincent Grémeaux, Mélanie Riédel, Damien Garrigues, Thibaut Guiraud, Marc Labrunée
BACKGROUND: In patients with peripheral arterial disease (PAD), walking improvements are often limited by early pain onset due to vascular claudication. It would thus appear interesting to develop noninvasive therapeutic strategies, such as transcutaneous electrical nerve stimulation (TENS), to improve the participation of PAD patients in rehabilitation programmes, and thus improve their quality of life. Our team recently tested the efficacy of a single 45-min session of 10-Hz TENS prior to walking...
August 10, 2017: Trials
https://www.readbyqxmd.com/read/28740456/carotid-artery-stiffness-digital-endothelial-function-and-coronary-calcium-in-patients-with-essential-thrombocytosis-free-of-overt-atherosclerotic-disease
#7
Matjaz Vrtovec, Ajda Anzic, Irena Preloznik Zupan, Katja Zaletel, Ales Blinc
BACKGROUND: Patients with myeloproliferative neoplasms (MPNs) are at increased risk for atherothrombotic events. Our aim was to determine if patients with essential thrombocytosis (ET), a subtype of MPNs, free of symptomatic atherosclerosis, have greater carotid artery stiffness, worse endothelial function, greater coronary calcium and carotid plaque burden than control subjects. PATIENTS AND METHODS: 40 ET patients without overt vascular disease, and 42 apparently healthy, age and sex-matched control subjects with comparable classical risk factors for atherosclerosis and Framingham risk of coronary disease were enrolled...
June 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28721151/moderate-dose-atorvastatin-improves-arterial-endothelial-function-in-patients-with-angina-pectoris-and-normal-coronary-angiogram-a-pilot-study
#8
Amela Kabaklić, Zlatko Fras
INTRODUCTION: Endothelial dysfunction could contribute to the pathophysiology of angina pectoris (AP) in patients with normal coronary angiograms. Besides lipid-lowering effects, statins exert pleiotropic effects including improving endothelial function. MATERIAL AND METHODS: Our double-blind study included 58 patients with AP, noninvasively confirmed myocardial ischemia and a normal coronary angiogram. The effect of once-daily 20 mg atorvastatin (A) was compared with placebo (P) for 6 months...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28673038/endothelial-nitric-oxide-pathways-in-the-pathophysiology-of-dengue-a-prospective-observational-study
#9
Sophie Yacoub, Phung Khanh Lam, Trieu Trung Huynh, Hong Hanh Nguyen Ho, Hoai Tam Dong Thi, Nguyen Thu Van, Le Thi Lien, Quyen Nguyen Than Ha, Duyen Huynh Thi Le, Juthathip Mongkolspaya, Abigail Culshaw, Tsin Wen Yeo, Heiman Wertheim, Cameron Simmons, Gavin Screaton, Bridget Wills
Background: Dengue can cause increased vascular permeability that may lead to hypovolemic shock. Endothelial dysfunction may underlie this; however, the association of endothelial nitric oxide (NO) pathways with disease severity is unknown. Methods: We performed a prospective observational study in 2 Vietnamese hospitals, assessing patients presenting early (<72 hours of fever) and patients hospitalized with warning signs or severe dengue. The reactive hyperemic index (RHI), which measures endothelium-dependent vasodilation and is a surrogate marker of endothelial function and NO bioavailability, was evaluated using peripheral artery tonometry (EndoPAT), and plasma levels of l-arginine, arginase-1, and asymmetric dimethylarginine were measured at serial time-points...
October 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28590332/hiv-positive-youth-who-are-perinatally-infected-have-impaired-endothelial-function
#10
Sahera Dirajlal-Fargo, Abdus Sattar, Manjusha Kulkarni, Emily Bowman, Nicholas Funderburg, Grace A McComsey
OBJECTIVE: Evaluating cardiovascular disease risk in children and youth 13 to 24 years old who are facing a life time exposure to both HIV and antiretroviral therapy is a research priority. This study compares endothelial function measured by peripheral arterial tonometry in HIV-positive youth infected perinatally and behaviorally as well as HIV-negative controls. METHODS: Three groups of participants aged 8-30 year were enrolled; HIV-positive perinatally infected, HIV-positive behaviorally infected on antiretroviral therapy with HIV-1 RNA less than 1000 copies/ml, and HIV-negative controls...
September 10, 2017: AIDS
https://www.readbyqxmd.com/read/28561781/comparison-of-the-peripheral-reactive-hyperemia-index-with-myocardial-perfusion-reserve-by-82-rb-pet-ct-in-hiv-infected-patients
#11
Mathilde Ørbæk, Philip Hasbak, Rasmus Sejersten Ripa, Andreas Kjær, Anne-Mette Lebech, Andreas Knudsen
After the introduction of antiretroviral therapy (ART) the life expectancy of patients infected with human immunodeficiency virus (HIV) is now approaching that of the general population and the importance of non-AIDS co-morbidities is increasing. Specifically, the risk of coronary artery disease (CAD) seems to be higher in HIV-infected patients and an accurate risk prediction of CAD is of high importance for optimal long term treatment. In this study, we assessed the correlation of the endoPAT, which is an office-based CVD screening tool with the myocardial perfusion reserve by (82)-rubidium PET/CT...
May 31, 2017: Diagnostics
https://www.readbyqxmd.com/read/28560282/clinical-and-biochemical-data-of-endothelial-function-in-women-consuming-combined-contraceptives
#12
Irina I Lobysheva, Sandrine van Eeckhoudt, Flavia Dei Zotti, Ahmad Rifahi, Lucie Pothen, Christophe Beauloye, Jean-Luc Balligand
The data presented in this article are associated with the research article entitled "Heme-Nitrosylated Hemoglobin and Oxidative Stress in Women Consuming Combined Contraceptives. Clinical Application of the EPR Spectroscopy" (Lobysheva et al., 2017 [1]), and describe the characteristics of redox status in blood, as well as biochemical and clinical parameters of young female subjects consuming (or not) contraceptive pills (CP). Erythrocyte concentration of reduced thiols reflecting erythrocyte redox capacity was measured before and after sample deproteinization by electron paramagnetic resonance spectroscopy (EPR) using a nitroxide biradical spin probe specifically interacting with reduced thiols; additional data were obtained by a colorimetric method using Ellman׳s reagents in the same samples...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28515707/validation-of-repeated-endothelial-function-measurements-using-endopat-in-stroke
#13
Aina S Hansen, Jawad H Butt, Sonja Holm-Yildiz, William Karlsson, Christina Kruuse
BACKGROUND: Decreased endothelial function (EF) may be a prognostic marker for stroke. Measuring pharmacological effects on EF may be of interest in the development of personalized medicine for stroke prevention. In this study, we assessed the reliability of repeated EF measurements using a pulse amplitude tonometry technology in acute stroke patients. Similarly, reliability was tested in healthy subjects devoid of vascular disease to estimate reactivity and reliability in a younger non-stroke population...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28447271/the-relationship-between-vascular-endothelial-dysfunction-and-treatment-frequency-in-neovascular-age-related-macular-degeneration
#14
Tomoko Ueda-Consolvo, Atsushi Hayashi, Mayumi Ozaki, Tomoko Nakamura, Takaaki Yagou, Shinya Abe
PURPOSE: To assess the correlation between endothelial dysfunction and frequency of antivascular endothelial growth factor (anti-VEGF) treatment for neovascular age-related macular degeneration (nAMD). METHODS: We examined 64 consecutive patients with nAMD who were evaluated for endothelial function by use of peripheral arterial tonometry (EndoPAT 2000; Itamar Medical, Caesarea, Israel) at Toyama University Hospital from January 2015. We tallied the number of anti-VEGF treatments between January 2014 and December 2015 and determined the correlation between the number of anti-VEGF injections and endothelial function expressed as the reactive hyperemia index (RHI)...
July 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28439982/impaired-endothelial-function-in-patients-with-cryptogenic-stroke-and-patent-foramen-ovale-is-not-affected-by-closure
#15
Maria Lantz, Konstantinos Kostulas, Magnus Settergren, Christina Sjöstrand
INTRODUCTION: Patent foramen ovale (PFO) is associated with cryptogenic stroke (CS) and migraine with aura (MA). Endothelial dysfunction (ED) is a risk factor for development of cardiovascular disease, but might also be involved in migraine pathophysiology. Short-term worsening of migraine has been described after closure of PFO. We evaluated endothelial function in patients with CS and PFO, before and after closure of PFO, and in patients with migraine, whether changes in endothelial function was related to a change in migraine frequency...
June 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28392282/heme-nitrosylated-hemoglobin-and-oxidative-stress-in-women-consuming-combined-contraceptives-clinical-application-of-the-epr-spectroscopy
#16
Irina I Lobysheva, Sandrine van Eeckhoudt, Flavia Dei Zotti, Ahmad Rifahi, Lucie Pothen, Christophe Beauloye, Jean-Luc Balligand
An increased risk of venous thromboembolism was identified in young women consuming combined contraceptive pills (CP) suggesting a disturbance of vascular homeostasis but the impact of CP on endothelial function and redox status of the vasculature was not thoroughly analyzed. We measured the bioavailability of nitric oxide (NO), a main mediator of vascular homeostasis in a cohort of young female subjects (n=114) and compared the results in users or not of CPs containing ethinyl estradiol and synthetic progestogens...
April 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28344817/urinary-biomarkers-as-indicator-of-chronic-inflammation-and-endothelial-dysfunction-in-obese-adolescents
#17
Ruchi Singh, Arushi Verma, Salim Aljabari, Tetyana L Vasylyeva
BACKGROUND: Obesity is a pro-inflammatory state that may predispose patients to acute coronary syndrome characterized by chronic low grade inflammation resulting in endothelial dysfunction (ED). The aim of the study was to evaluate urinary biomarkers of inflammation and ED in adolescents with obesity. METHODS: Sixty three subjects were recruited for the study. Twenty healthy adolescents with normal body mass (NW), 14 overweight (OW), 29 obese (OA) subjects were selected...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28153005/effects-of-an-l-arginine-based-multi-ingredient-product-on-endothelial-function-in-subjects-with-mild-to-moderate-hypertension-and-hyperhomocysteinemia-a-randomized-double-blind-placebo-controlled-cross-over-trial
#18
RANDOMIZED CONTROLLED TRIAL
Claudia A Reule, Birgit Goyvaerts, Christiane Schoen
BACKGROUND: Nutrition plays an important role in prevention and management of cardiovascular diseases (CVD) in early stages. Recent research demonstrated beneficial effects of various nutritional ingredients on vascular health. The aim of the current study was to evaluate the effects of an L-arginine-based multi ingredient product (AbMIP) on vascular function. METHODS: Twenty-five male and female subjects, aged between 45 and 65 years with elevated blood pressure and hyperhomocysteinemia were included in this cross-over trial...
February 2, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28088210/endothelial-function-in-children-with-a-history-of-henoch-schonlein-purpura
#19
Yonatan Butbul Aviel, Lotem Dafna, Giora Pilar, Riva Brik
BACKGROUND: Although Henoch-Schonlein purpura (HSP) is the most common form of systemic vasculitis in children, the long term effect of HSP on endothelial function is still not clear. The aim of our study was to evaluate the long term effect of HSP on endothelial function in children and adolescents. METHODS: This research was an observational prospective study. The study group comprised of 19 children diagnosed with HSP. The minimum interval between the diagnosis with HSP and endothelial testing was 5 months...
January 14, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28078212/improvement-of-endothelial-function-following-initiation-of-testosterone-replacement-therapy
#20
Daniel A Shoskes, Barbara Tucky, Allan S Polackwich
BACKGROUND: Isolated recent studies have suggested an increased risk of heart attack as early as 3 months following testosterone replacement therapy (TRT). Such a rapid risk increase would likely require rapid deterioration of arterial endothelial function. Our goal was to assess arterial endothelial function in hypogonadal men prior to and at least 3 months after initiation of TRT. METHODS: Adult men were consented if they had symptoms of hypogonadism, a total testosterone <350 ng/dL, and planned to begin TRT...
December 2016: Translational Andrology and Urology
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