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reactive hyperemia index

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
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
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
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...
February 27, 2018: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
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
Gian Luca Erre, Matteo Piga, Anna Laura Fedele, Silvia Mura, Alessandra Piras, Maria Luisa Cadoni, Ignazio Cangemi, Martina Dessi, Gabriele Di Sante, Barbara Tolusso, Elisa Gremese, Alberto Cauli, Arduino Aleksander Mangoni, Pier Sergio Saba, Ciriaco Carru, Gianfranco Ferraccioli, Alessandro Mathieu, Giuseppe Passiu
Objectives: To define the prevalence and determinants of peripheral microvascular endothelial dysfunction (ED) in a large series of rheumatoid arthritis (RA) patients free of previous cardiovascular events. Materials and Methods: Data from 874 RA patients enrolled in the EDRA study (Endothelial Dysfunction Evaluation for Coronary Heart Disease Risk Estimation in Rheumatoid NCT02341066) were analyzed. Log-transformed reactive hyperemia index (Ln-RHI) was evaluated by peripheral arterial tonometry (PAT) using the EndoPAT2000 device: values of Ln-RHI < 0...
2018: Mediators of Inflammation
A Namugowa, J Iputo, J Wandabwa, A Meeme, G A B Buga, S Abura, Y Y Stofile
Women with pre-eclampsia have an increased risk of cardiovascular disease later in life. The aim of the study was to establish the presence and pattern of arterial stiffness in women previously with pre-eclampsia from a semi-rural region of South Africa. This was a prospective longitudinal study which involved 36 previously pre-eclamptic women and 86 non-pregnant controls (NPC) who had a past history of non-complicated pregnancy. Maternal wave reflection (augmentation index) and carotid-femoral pulse wave velocity were assessed noninvasively, using applanation tonometry with the SphygmoCor device...
February 23, 2018: Clinical and Experimental Hypertension: CHE
Rosanna Iacona, Vito Bonomo, Mariaconcetta Di Piazza, Angela Sansone, Manuela Usala, Salvatore Novo, Carlo Pavone
OBJECTIVE: Testosterone levels play a role in cardiac and vascular pathology. In the present study we investigated the prognostic significance of this hormone for cardiovascular outcome, in a 5-year follow-up. MATERIALS AND METHODS: Our cohort included 802 adult subjects, from 40 to 80 years. Patients were excluded if they had a past history of peripheral or coronary artery disease, and revascularization. A blood sample was drawn to valuate testosterone level, and we considered normal testosterone levels 300 ng/dl...
December 31, 2017: Archivio Italiano di Urologia, Andrologia
Viola Vaccarino, Samaah Sullivan, Muhammad Hammadah, Kobina Wilmot, Ibhar Al Mheid, Ronnie Ramadan, Lisa Elon, Pratik M Pimple, Ernest V Garcia, Jonathon Nye, Amit J Shah, Ayman Alkhoder, Oleksiy Levantsevych, Hawkins Gay, Malik Obideen, Minxuan Huang, Tené T Lewis, J Douglas Bremner, Arshed A Quyyumi, Paolo Raggi
BACKGROUND: Mental stress-induced myocardial ischemia (MSIMI) is frequent in patients with coronary artery disease and is associated with worse prognosis. Young women with a previous myocardial infarction (MI), a group with unexplained higher mortality than men of comparable age, have shown elevated rates of MSIMI, but the mechanisms are unknown. METHODS: We studied 306 patients (150 women and 156 men) ≤61 years of age who were hospitalized for MI in the previous 8 months and 112 community controls (58 women and 54 men) frequency matched for sex and age to the patients with MI...
February 20, 2018: Circulation
Rebecca L Scalzo, Timothy A Bauer, Kylie Harrall, Kerrie Moreau, Cemal Ozemek, Leah Herlache, Shawna McMillin, Amy G Huebschmann, Jennifer Dorosz, Jane E B Reusch, Judith G Regensteiner
Background: People with type 2 diabetes (T2D) have impaired exercise capacity, even in the absence of complications, which is predictive of their increased cardiovascular mortality. Cardiovascular dysfunction is one potential cause of this exercise defect. Acute infusion of vitamin C has been separately shown to improve diastolic and endothelial function in prior studies. We hypothesized that acute vitamin C infusion would improve exercise capacity and that these improvements would be associated with improved cardiovascular function...
2018: Diabetology & Metabolic Syndrome
Antonino Tuttolomondo, Salvatore Petta, Alessandra Casuccio, Carlo Maida, Vittoriano Della Corte, Mario Daidone, Domenico Di Raimondo, Rosaria Pecoraro, Roberto Fonte, Anna Cirrincione, Rita Zafonte, Daniela Cabibi, Calogero Cammà, Vito Di Marco, Anna Licata, Franco Magliozzo, Giulio Marchesini, Giovanni Merlino, Antonio Craxì, Antonio Pinto
BACKGROUND: No study evaluated vascular health markers in subjects with non-alcoholic fatty liver disease (NAFLD) through a combined analysis of reactive hyperemia peripheral arterial tonometry (RH-PAT) and arterial stiffness indexes. AIM OF THE STUDY: We aimed to assess whether NAFLD and its histological severity are associated with impairment of arterial stiffness and RH-PAT indexes in a mixed cohort of patients with biopsy-proven NAFLD. MATERIALS AND METHODS: The Kleiner classification was used to grade NAFLD grade...
February 16, 2018: Cardiovascular Diabetology
Taku Koyama, Atsushi Tanaka, Hisako Yoshida, Jun-Ichi Oyama, Shigeru Toyoda, Masashi Sakuma, Teruo Inoue, Yoritaka Otsuka, Koichi Node
Endothelial dysfunction contributes to poor cardiovascular prognosis in patients with type 2 diabetes mellitus (T2DM) and coronary artery disease (CAD). The effect of dipeptidyl peptidase-4 inhibitors on endothelial function remains controversial. We sought to compare the effects of linagliptin and voglibose on endothelial function, as assessed by reactive hyperemia-peripheral arterial tonometry (RH-PAT). Sixteen patients with newly diagnosed T2DM and CAD were randomized 1:1 to linagliptin (5 mg, once-daily) or voglibose (0...
February 9, 2018: Heart and Vessels
Yong-Hua Gao, Shao-Xia Liu, Juan-Juan Cui, Ling-Yun Wang, Ke-Qin Yin, Li Wang, Su-Ying Ding, Wei-Jie Guan, Guo-Jun Zhang
BACKGROUND AND OBJECTIVE: Bronchiectasis has been associated with increased risks of cardiovascular disease, in which early-stage endothelial dysfunction might have played pivotal roles. We aimed to investigate endothelial function in bronchiectasis patients, by measuring flow-mediated dilatation (FMD) and carotid intima-media thickness (CIMT) as compared with control subjects, and to elucidate the impact of different risk factors on subclinical atherosclerosis. METHODS: The study included 80 bronchiectasis patients and 80 age- and sex-matched healthy subjects...
January 2018: Respiratory Medicine
Rhys I Beaudry, Yuanyuan Liang, Steven T Boyton, Wesley J Tucker, R Matthew Brothers, Kathryn M Daniel, Roshni Rao, Mark J Haykowsky
Cancer and cardiovascular disease (CVD) are leading causes of morbidity and mortality in the United States. Vascular endothelial dysfunction, an important contributor in the development of CVD, improves with exercise training in patients with CVD. However, the role of regular exercise to improve vascular function in cancer survivors remains equivocal. We performed a meta-analysis to determine the effect of exercise training on vascular endothelial function in cancer survivors. We searched PubMed (1975 to 2016), EMBASE CINAHL (1937 to 2016), OVID MEDLINE (1948 to 2016), and Cochrane Central Registry of Controlled Trials (1991 to 2016) using search terms: vascular function, endothelial function, flow-mediated dilation [FMD], reactive hyperemia, exercise, and cancer...
January 1, 2018: Integrative Cancer Therapies
Jeehoon Kang, Hack-Lyoung Kim, Jae-Bin Seo, Jin-Yong Lee, Min-Kyong Moon, Woo-Young Chung
Due to the complex profile of atherosclerotic risk factors, an integrated analysis of a specific individual is difficult. Endothelial function reflects a composite of various risk factors, and may be used as an optimal tool to estimate the overall atherosclerotic risk. In this study, we investigated the value of digital Reactive Hyperemia Index (RHI) in an actual population with multiple atherosclerotic risk factors or coronary artery disease (CAD). A total of 417 patients from the Seoul National University Boramae Medical Center RHI registry were enrolled in this study...
January 19, 2018: Heart and Vessels
Lotte Smolders, Ronald P Mensink, Jose J van den Driessche, Peter J Joris, Jogchum Plat
BACKGOUND: Theobromine, a component of cocoa, may favorably affect conventional lipid-related cardiovascular risk markers, but effects on flow-mediated dilation (FMD) and other vascular function markers are not known. OBJECTIVE: To evaluate the effects of 4-week theobromine consumption (500 mg/day) on fasting and postprandial vascular function markers. DESIGN: In a randomized, double-blind crossover study, 44 apparently healthy overweight (N = 30) and obese (N = 14) men and women with low HDL-C concentrations, consumed daily 500 mg theobromine or placebo for 4 weeks...
January 12, 2018: European Journal of Nutrition
Tatsuya Maruhashi, Yumiko Iwamoto, Masato Kajikawa, Nozomu Oda, Shinji Kishimoto, Shogo Matsui, Haruki Hashimoto, Yoshiki Aibara, Farina Mohamad Yusoff, Takayuki Hidaka, Yasuki Kihara, Kazuaki Chayama, Kensuke Noma, Ayumu Nakashima, Chikara Goto, Eisuke Hida, Yukihito Higashi
BACKGROUND: Flow-mediated vasodilation (FMD) of the brachial artery has been used for the assessment of endothelial function. Considering the mechanism underlying the vasodilatory response of the brachial artery to reactive hyperemia, hyperemic shear stress (HSS), a stimulus for FMD; nitroglycerine-induced vasodilation (NID), an index of endothelium-independent vasodilation; and baseline brachial artery diameter (BAD) are also involved in vasodilatory response. The purpose of this study was to investigate the interrelationships among FMD, HSS, NID, baseline BAD, and cardiovascular risk factors...
December 29, 2017: Journal of the American Heart Association
Chikage Noishiki, Gen Takagi, Yoshiaki Kubota, Rei Ogawa
Keloid is a cutaneous fibroproliferative disorder. It results from impaired wound healing that generates persistent inflammation and extensive deposition of collagen fibers in the wound/scar. Keloids tend to be worse in hypertensive patients. The present prospective cross-sectional study assessed whether endothelial dysfunction, which occurs in hypertension, associates with keloid formation and progression. This study included randomly selected patients with keloids who were assessed for surgical keloid treatment in 2013-2014...
December 14, 2017: Wound Repair and Regeneration
Tadateru Takayama, Takafumi Hiro, Shunichi Yoda, Daisuke Fukamachi, Hironori Haruta, Takaaki Kogo, Takashi Mineki, Hironobu Murata, Toru Oshima, Atsushi Hirayama
Vascular endothelial dysfunction plays an important role in the process of atherosclerosis up to the final stage of plaque rupture. Vascular endothelial dysfunction is reversible, and can be recovered by medications and life-style changes. Improvement in endothelial function may reduce cardiovascular events and improve long-term prognosis. A total of 50 patients with stable angina and dyslipidemia were enrolled, including patients who had not received prior treatment with statins and had serum LDL-C levels ≥ 100 mg/dL, and patients who had previously received statin treatment...
December 5, 2017: Heart and Vessels
Yutaka Odanaka, Kimitaka Takitani, Hiroshi Katayama, Hiroshi Fujiwara, Kanta Kishi, Noriyasu Ozaki, Atsuko Ashida, Ryuzo Takaya, Hiroshi Tamai
Endothelial dysfunction is the early predictive factor for the development of atherosclerosis and future cardiovascular diseases in adulthood. The prevalence of endothelial dysfunction in children and early adolescents is increasing worldwide. Peripheral arterial tonometry is a noninvasive technique for assessing peripheral microvascular function and is used as a validated marker of endothelial function. We assessed anthropometric parameters, blood pressure, arterial stiffness, and peripheral endothelial function in 157 Japanese early adolescents (75 boys and 82 girls)...
November 2017: Journal of Clinical Biochemistry and Nutrition
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