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reactive hyperemia index

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https://www.readbyqxmd.com/read/29760346/effect-of-sitagliptin-on-coronary-flow-reserve-assessed-by-magnetic-resonance-imaging-in-type-2-diabetic-patients-with-coronary-artery-disease
#1
Keishi Moriwaki, Tetsushiro Takeuchi, Naoki Fujimoto, Toshiki Sawai, Yuichi Sato, Naoto Kumagai, Jun Masuda, Shiro Nakamori, Masaki Ishida, Norikazu Yamada, Mashio Nakamura, Hajime Sakuma, Masaaki Ito, Kaoru Dohi
BACKGROUND: The present study was conducted to assess the cardiovascular effects of dipeptidyl peptidase-4 inhibitors (DPP4i) on coronary flow reserve (CFR), left ventricular (LV) function and endothelial function of the peripheral artery by comparison with those of α-glucosidase inhibitors (αGI) in patients with type 2 diabetes mellitus (T2DM) and coronary artery disease (CAD).Methods and Results:We randomly assigned 30 patients with T2DM and CAD to receive either sitagliptin or voglibose, and 28 patients (age 69±9 years, 75% male, hemoglobin A1c [HbA1c] 6...
May 12, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29754323/the-effects-of-exenatide-and-metformin-on-endothelial-function-in-newly-diagnosed-type-2-diabetes-mellitus-patients-a-case-control-study
#2
Yanjin Hu, Jia Liu, Guang Wang, Yuan Xu
INTRODUCTION: Exenatide is a new antidiabetic glucagon-like peptide-1 receptor agonist. In addition to its hypoglycemic effect, exenatide may have a potential protective benefit on vascular endothelial function. This study attempted to compare the effects of exenatide and traditional antidiabetic drug metformin treatment on endothelial function in overweight patients with type 2 diabetes. METHODS: Ninety overweight patients with newly diagnosed type 2 diabetes were recruited; 45 patients received exenatide (Exe) treatment and 45 patients received metformin (Met) treatment for 12 weeks...
May 12, 2018: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29752665/microcirculatory-improvement-induced-by-laparoscopic-sleeve-gastrectomy-is-related-to-insulin-sensitivity-retrieval
#3
Stefano Ministrini, Chiara Fattori, Maria Anastasia Ricci, Vanessa Bianconi, Rita Paltriccia, Marcello Boni, Maria Teresa Paganelli, Gaetano Vaudo, Graziana Lupattelli, Leonella Pasqualini
AIMS: Microvascular dysfunction is a potential factor explaining the association of obesity, insulin resistance, and vascular damage in morbidly obese subjects. The purpose of the study was to evaluate possible determinants of microcirculatory improvement 1 year after laparoscopic sleeve gastrectomy (LSG) intervention. METHODS: Thirty-seven morbidly obese subjects eligible for bariatric surgery were included in the study. Post-occlusive reactive hyperemia (PORH) of the forearm skin was measured as area of hyperemia (AH) by laser-Doppler flowmetry before LSG and after a 1-year follow-up...
May 12, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29728052/a-new-method-for-the-assessment-of-endothelial-function-with-peripheral-arterial-volume
#4
Daoyuan Si, Lujia Ni, Yunfei Wang, Jinsha Liu, Jining Yang, Ping Yang
BACKGROUND: Currently, many methodological approaches have been developed to assess peripheral endothelial function. However, a development of the noninvasive and automated technique for routinely assessing endothelial function is still required. We evaluated the potential value of a new method to measure peripheral endothelial function with reactive hyperemia peripheral arterial volume (RH-PAV) in patients with chest pain. METHODS: We used a novel oximeter-like probe to detect the peripheral arterial volume (PAV) of the finger and compared it with brachial flow-mediated dilation (FMD) performed in 93 consecutive patients with chest pain...
May 4, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29701384/endothelial-function-and-vascular-properties-in-severe-aortic-stenosis-before-and-after-aortic-valve-replacement-surgery
#5
Renata Melo, Francisca A Saraiva, Ana Filipa Ferreira, Soraia Moreira, Raquel Moreira, Rui J Cerqueira, Mário J Amorim, Paulo Pinho, André P Lourenço, Adelino F Leite-Moreira
INTRODUCTION: The degenerative process that results in aortic valve stenosis (AS) has pathophysiological features similar to the atherosclerotic process. We therefore hypothesized that, as in atherosclerosis, endothelial and vascular dysfunction could be a pathophysiologic feature of AS. AIM: To evaluate endothelial function before and after aortic valve replacement (AVR) surgery in patients with severe AS. To correlate endothelial function with severity of AS and clinical profile...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29681567/recovery-of-endothelial-function-after-minor-to-moderate-surgery-is-impaired-by-diabetes-mellitus-obesity-hyperuricemia-and-sevoflurane-based-anesthesia
#6
Sachi Ohno, Atsushi Kohjitani, Masaaki Miyata, Akina Tohya, Kaoru Yamashita, Teruto Hashiguchi, Mitsuru Ohishi, Mitsutaka Sugimura
Endothelial dysfunction is observed in several cardiovascular diseases, where endothelium-dependent vasodilation is impaired by oxidative stress. However, the time course of endothelial function during the perioperative period of a minor-to-moderate surgery, and the effects of atherosclerotic risk factors and employed general anesthetics on recovery of endothelial function, are unknown. Endothelial function of 30 patients was evaluated as the reactive hyperemia index (RHI) of reactive hyperemia peripheral arterial tonometry...
April 20, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29659956/polyphenols-have-no-impact-on-endothelial-function-in-patients-with-obstructive-sleep-apnea-a-randomized-controlled-trial
#7
Wojciech Trzepizur, Vanessa Bironneau, Sylvain Recoquillon, Pascaline Priou, Nicole Meslier, Jean-François Hamel, Samir Henni, Astrid Darsonval, Khaled Messaoudi, Maria Carmen Martínez, Ramaroson Andriantsitohaina, Frédéric Gagnadoux
Background: Endothelial dysfunction, a pathophysiologic determinant of atherogenesis, has been found to occur in obstructive sleep apnea syndrome (OSA) and is improved by continuous positive airway pressure (CPAP). However, the efficacy of CPAP therapy is limited by variable adherence. Alternative treatment strategies are needed. The impact of polyphenols on endothelial function has never been evaluated in OSA. Objective: We evaluated the impact of 1-mo supplementation with grape juice polyphenols (GJPs) on the reactive hyperemia index (RHI), a validated measure of endothelial function in patients with severe OSA...
April 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29658370/changes-in-endothelial-function-arterial-stiffness-and-blood-pressure-in-pregnant-women-after-consumption-of-high-flavanol-and-high-theobromine-chocolate-a-double-blind-randomized-clinical-trial
#8
Asma Babar, Emmanuel Bujold, Vicky Leblanc, Élise Lavoie-Lebel, Joalee Paquette, Laurent Bazinet, Simone Lemieux, Isabelle Marc, Belkacem Abdous, Sylvie Dodin
OBJECTIVES: The aim of this 2-group, parallel, double blind single-centre RCT was to evaluate the acute and chronic impacts of high flavanol high theobromine (HFHT) chocolate consumption on endothelial function, arterial stiffness and blood pressure (BP) in women at risk of preeclampsia. METHODS: 131 pregnant women considered at risk of preeclampsia based on uterine artery Doppler ultrasound were divided into two groups (HFHT or low flavanol and theobromine chocolate (LFLT)...
April 16, 2018: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/29652651/prediction-of-organ-involvement-in-systemic-sclerosis-by-serum-biomarkers-and-peripheral-endothelial-function
#9
Shin-Ya Kawashiri, Ayako Nishino, Takashi Igawa, Ayuko Takatani, Toshimasa Shimizu, Masataka Umeda, Shoichi Fukui, Akitomo Okada, Takahisa Suzuki, Tomohiro Koga, Naoki Iwamoto, Kunihiro Ichinose, Mami Tamai, Munetoshi Nakashima, Akinari Mizokami, Naoki Matsuoka, Kiyoshi Migita, Fumihide Ogawa, Satoshi Ikeda, Koji Maemura, Hideki Nakamura, Tomoki Origuchi, Takahiro Maeda, Atsushi Kawakami
OBJECTIVES: To identify prognostic factors among serum biomarkers and endothelial vasodilator function findings in patients with systemic sclerosis (SSc). METHODS: This is a clinical observational study. We assessed 60 consecutive SSc patients (44 limited cutaneous-type, 16 diffuse cutaneous-type). Circulating growth differentiation factor-15 (GDF-15), placenta growth factor (PlGF), endostatin, vascular endothelial growth factor (VEGF), and pentraxin 3 (PTX3) were measured by ELISA...
April 12, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29652542/sympathoexcitation-constrains-vasodilation-in-the-human-skeletal-muscle-microvasculature-during-post-occlusive-reactive-hyperemia
#10
Masashi Ichinose, Mikie Nakabayashi, Yumie Ono
We used diffuse correlation spectroscopy (DCS) to investigate sympathetic vasoconstriction, local vasodilation, and integration of these two responses in the skeletal muscle microvasculature of 20 healthy volunteers. DCS probes were placed on the flexor carpi radialis muscle (FC) or the vastus lateralis muscle (VL), and a blood flow index (BFI) was derived continuously. We measured hemodynamic responses during sympathoexcitation induced by forehead cooling, after which the effects of the increased sympathetic tone on vasodilatory responses during post-occlusive reactive hyperemia (PORH) were examined...
April 13, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29622435/reactive-hyperemia-peripheral-arterial-tonometry-is-useful-for-assessment-of-not-only-endothelial-function-but-also-stenosis-of-the-digital-artery
#11
Shinji Kishimoto, Takeshi Matsumoto, Tatsuya Maruhashi, Yumiko Iwamoto, Masato Kajikawa, Nozomu Oda, Shogo Matsui, Haruki Hashimoto, Takayuki Hidaka, Yasuki Kihara, Kazuaki Chayama, Chikara Goto, Yoshiki Aibara, Farina Binti Mohamad Yusoff, Ayumu Nakashima, Kensuke Noma, Yukihito Higashi
BACKGROUND: Although reactive hyperemia-peripheral arterial tonometry (RH-PAT) is widely used for assessment of endothelial function, RH index (RHI) cannot be measured in some cases when pulse wave amplitude (PWA) is very low. Decrease in PWA is mainly caused by proper palmar digital artery (PPDA) stenosis. The purpose of this study was to evaluate the relationship between PWA measured by RH-PAT and stenosis of the PPDA measured by digital subtraction angiography and to evaluate the limitation of assessment of endothelial function measured by RHI in patients with PPDA stenosis...
June 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29611173/the-relationship-between-pulse-waveform-analysis-indices-endothelial-function-and-clinical-outcomes-in-patients-with-peripheral-artery-disease-treated-using-percutaneous-transluminal-angioplasty-during-a-one-year-follow-up-period
#12
Paweł S Kaczmarczyk, Paweł Maga, Rafał Niżankowski, Rafał Januszek, Marzena Frołow, Mikołaj Maga, Jolanta Kościelniak, Andrzej Belowski
BACKGROUND: The aim of the current study was to assess the relationship between potential predictors of clinical outcomes after percutaneous transluminal angioplasty (PTA) of peripheral arteries during a one-year follow-up. Indices of endothelial function (EF), arterial pulse waveform analysis (aPWA) and markers of peripheral arteries ischemia were among those mostly examined. METHODS: The study comprised of 72 individuals with PAD who underwent PTA of the peripheral arteries...
April 3, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29607968/the-sglt2-inhibitor-dapagliflozin-significantly-improves-the-peripheral-microvascular-endothelial-function-in-patients-with-uncontrolled-type-2-diabetes-mellitus
#13
Seigo Sugiyama, Hideaki Jinnouchi, Noboru Kurinami, Kunio Hieshima, Akira Yoshida, Katsunori Jinnouchi, Hiroyuki Nishimura, Tomoko Suzuki, Fumio Miyamoto, Keizo Kajiwara, Tomio Jinnouchi
Objective Sodium-glucose cotransporter-2 (SGLT2) inhibitors reduce cardiovascular events and decrease the body fat mass in patients with type 2 diabetes mellitus (T2DM). We examined whether or not the SGLT2-inhibitor dapagliflozin can improve the endothelial function associated with a reduction in abdominal fat mass. Methods We prospectively recruited patients with uncontrolled (hemoglobin A1c [HbA1c] >7.0%) T2DM who were not being treated by SGLT2 inhibitors. Patients were treated with add-on dapagliflozin (5 mg/day) or non-SGLT2 inhibitor medicines for 6 months to improve their HbA1c...
March 30, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29601410/increased-aortic-wave-reflection-contributes-to-higher-systolic-blood-pressure-in-adolescents-born-preterm
#14
Remi R Kowalski, Richard Beare, Jonathan P Mynard, Jeanie L Y Cheong, Lex W Doyle, Joseph J Smolich, Michael M H Cheung
OBJECTIVE: To evaluate the wave reflection characteristics in the aortic arch and common carotid artery of ex-preterm adolescents and assess their relationship to central blood pressure in a cohort followed prospectively since birth. METHODS: Central blood pressures, pulse wave velocity, augmentation index, microvascular reactive hyperemia, arterial distensibility, compliance and stiffness index, and also aortic and carotid wave intensity were measured in 18-year-olds born extremely preterm at below 28 weeks' gestation (n = 76) and term-born controls (n = 42)...
March 29, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29593654/ethnic-disparities-in-endothelial-function-and-its-cardiometabolic-correlates-the-pathobiology-of-prediabetes-in-a-biracial-cohort-study
#15
Ibiye Owei, Nkiru Umekwe, Hanan Mohamed, Sotonte Ebenibo, Jim Wan, Sam Dagogo-Jack
Background: Endothelial function (EF) reflects the balance between vasodilatory and vasoconstrictive factors produced by (or acting on) the innermost lining of blood vessels. Endothelial dysfunction, an imbalance between these factors that favors vasoconstriction, has been associated with increased risk for cardiovascular disease. However, the influence of race/ethnicity and glycemic status on association between EF and cardiovascular risk factors remain to be clarified. Subjects and methods: We assessed EF in relation to glycemia and cardiometabolic profile in African-American (AA) and European-American (EA) offspring of parents with type 2 diabetes (T2D), who are participants in the prospective pathobiology and reversibility of prediabetes in a biracial cohort (PROP-ABC) study...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29552010/omega-3-fatty-acid-supplementation-improves-endothelial-function-in-primary-antiphospholipid-syndrome-a-small-scale-randomized-double-blind-placebo-controlled-trial
#16
Sheylla M Felau, Lucas P Sales, Marina Y Solis, Ana Paula Hayashi, Hamilton Roschel, Ana Lúcia Sá-Pinto, Danieli Castro Oliveira De Andrade, Keyla Y Katayama, Maria Claudia Irigoyen, Fernanda Consolim-Colombo, Eloisa Bonfa, Bruno Gualano, Fabiana B Benatti
Endothelial cells are thought to play a central role in the pathogenesis of antiphospholipid syndrome (APS). Omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation has been shown to improve endothelial function in a number of diseases; thus, it could be of high clinical relevance in APS. The aim of this study was to evaluate the efficacy of n-3 PUFA supplementation on endothelial function (primary outcome) of patients with primary APS (PAPS). A 16-week randomized clinical trial was conducted with 22 adult women with PAPS...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29541845/serial-assessment-of-endothelial-function-1-6-and-12-months-after-st-elevation-myocardial-infarction
#17
Jasveen J Kandhai-Ragunath, Carine J M Doggen, Liefke C van der Heijden, Marlies M Kok, Paolo Zocca, Bjorn de Wagenaar, Cees Doelman, Harald T Jørstad, Ron J G Peters, Clemens von Birgelen
Knowledge about the changes in endothelial function after ST-elevation myocardial infarction (STEMI) is of substantial interest, but serial data are scarce. The aim of the present study was to noninvasively evaluate whether endothelial function, as assessed shortly after primary percutaneous coronary intervention (PPCI) for STEMI, may improve until 12-month follow-up. This prospective observational cohort study was performed in patients in the RESPONSE randomized trial who participated in a substudy and underwent noninvasive assessment of endothelial function at 1 (baseline), 6, and 12-month follow-up after treatment of a STEMI by PPCI...
March 14, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29537350/association-of-obstructive-sleep-apnea-with-microvascular-endothelial-dysfunction-and-subclinical-coronary-artery-disease-in-a-community-based-population
#18
Daniel Shpilsky, Sebhat Erqou, Sanjay R Patel, Kevin E Kip, Oluremi Ajala, Aryan Aiyer, Patrick J Strollo, Steven E Reis, Oladipupo Olafiranye
Studies have reported an association between obstructive sleep apnea (OSA) and cardiovascular disease (CVD) morbidity and mortality. Proposed mechanisms include endothelial dysfunction and atherosclerosis. We aimed to investigate the associations of OSA with endothelial dysfunction and subclinical atherosclerotic coronary artery disease (CAD), and assess the impact of race on these associations. We used data from the Heart Strategies Concentrating on Risk Evaluation (Heart SCORE) study, a community-based prospective cohort with approximately equal representation of black and white participants...
March 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29499384/exposure-to-a-brazilian-pulp-mill-effluent-impacts-the-testis-and-liver-in-the-zebrafish
#19
Allisson Jhonatan Gomes Castro, Ivana Eunice Baptista, Kieiv Resende Sousa de Moura, Fernanda Padilha, Juliana Tonietto, Ariane Zamoner Pacheco de Souza, Carlos Henrique Lemos Soares, Fátima Regina Mena Barreto Silva, Glen Van Der Kraak
While many studies have shown that pulp mill effluents can affect ovarian physiology in fish, far fewer studies have considered the effects in males. We conducted a lab study to examine the effects of effluent from a Brazilian pulp and paper mill on hepatic and testicular morphology and various aspects of testicular physiology in the zebrafish Danio rerio. Males were exposed to lab water (control) or 4% effluent for 14 days. Effluent exposure did not affect testis size as measured by the gonadosomatic index, but contributed to morphological changes in the seminiferous tubules...
April 2018: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/29487564/the-effect-of-a-simulated-commercial-flight-environment-with-hypoxia-and-low-humidity-on-clotting-platelet-and-endothelial-function-in-participants-with-type-2-diabetes-a-cross-over-study
#20
Judit Konya, Ahmed Al Qaissi, Thozhukat Sathyapalan, Ramzi Ajjan, Leigh Madden, Khalid M Naseem, Andrew Thomas Garrett, Eric Kilpatrick, Stephen L Atkin
Aims: To determine if clotting, platelet, and endothelial function were affected by simulated short-haul commercial air flight conditions (SF) in participants with type 2 diabetes (T2DM) compared to controls. Methods: 10 participants with T2DM (7 females, 3 males) and 10 controls (3 females, 7 males) completed the study. Participants were randomized to either spend 2 h in an environmental chamber at sea level conditions (temperature: 23°C, oxygen concentration 21%, humidity 45%), or subject to a simulated 2-h simulated flight (SF: temperature: 23°C, oxygen concentration 15%, humidity 15%), and crossed over 7 days later...
2018: Frontiers in Endocrinology
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