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Pulse wave velocity

Győző Szolnoky, Henriette Gavallér, Anna Gönczy, Imre Bihari, Lajos Kemény, Tamás Forster, Attila Nemes
Szolnoky, G, Gavallér, H, Gönczy, A, Bihari, I, Kemény, L, Forster, T, and Nemes, A. The effects of below-knee medical compression stockings on pulse wave velocity of young healthy volunteers. J Strength Cond Res XX(X): 000-000, 2018-The effects of graduated medical compression stockings (MCS) on cardiovascular responses are poorly investigated. A simple study was undertaken to investigate whether the application of below-knee leg MCSs with different pressures could influence aortic pulse wave velocity (PWV) as the gold standard for aortic stiffness measurement evaluated by arteriography...
June 20, 2018: Journal of Strength and Conditioning Research
Ning-Chuan Li, Xia-Lian Yin, Xiu-Xia Wei, Wei Lu, Shi-Wen Shen, Lang Xiao, Yu-Long Hu
OBJECTIVES: To investigate the interventional effects of 16-week aerobic exercises on the elderly's arteriosclerosis and its mechanism. METHODS: Twenty-seven elderly people with the average age of 62. 70 ±3. 26 joined a 16-week square dance/taijiquan exercise program that conducted 60 minutes each time, six times per week. Arterial stiffness and its related indexes such as systolic pressure(SBP), diastolic pressure(DBP), left brachial-ankle pulse wave velocity (L-baPWV), right brachial-ankle pulse wave velocity(R-baPWV), left ankle brachial index (L-ABI), right ankle brachial index(R-ABI), serum triglyceride(TG), total cholesterol(TC), high density lipoprotein cholesterol(HDL-c), low density lipoprotein cholesterol(LDL-c), superoxide dismutase(SOD), malondialdehyde(MDA) and glutathione peroxidase (GSH-Px) were detected at 3 time points including before exercise program, by the end of exercise for 8 weeks and 16 weeks...
February 8, 2018: Chinese Journal of Applied Physiology
Shamit Shrivastava, Kevin H Kang, Matthias F Schneider
Nerve impulses, previously proposed as manifestations of nonlinear acoustic pulses localized at the plasma membrane, can annihilate upon collision. However, whether annihilation of acoustic waves at interfaces takes place is unclear. We previously showed the propagation of nonlinear sound waves that propagate as solitary waves above a threshold (super-threshold) excitation in a lipid monolayer near a phase transition. Here we investigate the interaction of these waves. Sound waves were excited mechanically via a piezo cantilever in a lipid monolayer at the air-water interface and their amplitude is reported before and after a collision...
June 2018: Journal of the Royal Society, Interface
Sang-Ho Jo, Sung-Ji Park, Eung Ju Kim, Soo-Joong Kim, Hyun-Jae Cho, Jong-Min Song, Jinho Shin, Jin Joo Park, Joon-Han Shin, Kyoo-Rok Han, Dong-Ju Choi
BACKGROUND: The efficacy of a combination of a calcium channel blocker (CCB) plus chlorthalidone (diuretic) versus a CCB plus an angiotensin receptor blocker (ARB) in patients not responding to CCB monotherapy has not been evaluated previously. We plan to compare the efficacy and safety of S-amlodipine (CCB) plus chlorthalidone versus S-amlodipine plus telmisartan (ARB) combinations among hypertension patients unresponsive to amlodipine monotherapy. METHODS/DESIGN: This study is a prospective, randomized, double-blind, multicenter, parallel, non-inferiority phase 4 study...
June 20, 2018: Trials
Andreas Harloff, Hanieh Mirzaee, Thomas Lodemann, Paul Hagenlocher, Thomas Wehrum, Judith Stuplich, Anja Hennemuth, Jürgen Hennig, Sebastian Grundmann, Werner Vach
BACKGROUND: Increased aortic stiffness is an independent predictor of cardiovascular disease. Optimal measurement is highly beneficial for the detection of atherosclerosis and the management of patients at risk. Thus, it was our purpose to selectively measure aortic stiffness using a novel imaging method and to provide reference values from a population-based study. METHODS: One hundred twenty six inhabitants of Freiburg, Germany, between 20 and 80 years prospectively underwent 3 Tesla cardiovascular magnetic resonance (CMR) of the thoracic aorta...
June 21, 2018: Journal of Cardiovascular Magnetic Resonance
Ariela R Orkaby, Kathryn L Lunetta, Fangui J Sun, Jane A Driver, Emelia J Benjamin, Naomi M Hamburg, Gary F Mitchell, Ramachandran S Vasan, Joanne M Murabito
Background: Frailty is a risk factor for cardiovascular disease. Underlying mechanisms to explain the connection between frailty and cardiovascular disease are unclear. We sought to examine the association between frailty and arterial stiffness, a precursor of hypertension and cardiovascular disease. Methods: We conducted a cross-sectional analysis of community-dwelling Framingham Heart Study Offspring and Omni participants ≥60 years of age examined in 2005-2008...
June 18, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
Lyndsey E DuBose, Laura L Boles Ponto, David J Moser, Emily Harlynn, Leah Reierson, Gary L Pierce
Greater aortic stiffness and pulse pressure are associated with cerebrovascular remodeling, reduced white matter microstructure, and cognitive performance with aging in humans. However, it is unclear whether aortic stiffness and pulse pressure are associated with reduced basal global cerebral blood flow (CBF) and cerebrovascular reserve among older adults. Global CBF was quantified in 205 adults (range, 19-87 years; mean±SE: 30.6±1.3 years) using quantitative [15 O]water brain positron emission tomography imaging...
June 18, 2018: Hypertension
S Zafar Abbas, Vijayata Sangawan, Asim Das, Anil Kumar Pandey
Background: Menopause is associated with increased cardiovascular disease (CVD) risk. Arterial stiffness, a biomarker of vascular aging, increases the risk for CVD. Aims and Objectives: The study was aimed to determine whether menopause is associated with arterial stiffness amongst natural and surgical menopausal women. Materials and Methods: We conducted a cross-sectional study amongst natural postmenopausal women, with Surgical menopause and Premenopausal...
March 2018: Indian Journal of Endocrinology and Metabolism
Liliana Tavares, Conceição Calhau, Jorge Polónia
INTRODUCTION: The migration of African populations to Europe poses problems of adaptation that may increase the risk of cardiovascular disease. We assessed the cardiovascular risk of Cape Verdean university students studying in Portugal (CV-PT) compared to Cape Verdean university students in Cape Verde (CV-CV) and to Caucasian university students in Portugal (PT-PT). METHODS: A cross-sectional study was performed comparing three university populations, 54-62% female, aged 19-28 years: CV-PT (n=104), CV-CV (n=100) and PT-PT (n=100)...
June 14, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Elles J Dijkema, Martijn G Slieker, Tim Leiner, Heynric B Grotenhuis
BACKGROUND: Hypertension is common in patients with coarctation of the aorta (CoA), even after successful repair. Increased aortic stiffness has been implicated in the pathology of CoA-associated hypertension. This study aimed to investigate aortic vascular function and its relationship with hypertension in well-repaired CoA-patients at long-term follow-up. Furthermore, we assessed the additive effect of hypertension to adverse arterioventricular coupling associated with increased aortic stiffness...
July 2018: American Heart Journal
Zhuo Gao, Xiaomei Li, Jing Miao, Lide Lun
BACKGROUND: Secondary hyperparathyroidism (SHPT) and calcium and phosphorus metabolism disorder are important complications in haemodialysis patients. Parathyroidectomy (PTX) may prevent or delay the progress of vascular calcification in haemodialysis patients. OBJECTIVE: To investigate the impacts of PTX on calcium and phosphorus metabolism, arterial calcification and arterial stiffness in haemodialysis patients with SHPT. METHODS: Twenty-one SHPT-haemodialysis patients were selected for PTX...
June 13, 2018: Asian Journal of Surgery
Raymond R Townsend
This narrative review summarizes a decade of experience examining the cross-sectional and longitudinal relationships of arterial stiffness, as assessed using carotid-femoral pulse wave velocity, with outcomes in patients with chronic kidney disease enrolled in the Chronic Renal Insufficiency Cohort. Our goal is to review the importance of the pulse wave contour and pulse wave velocity and present data on the reproducibility of pulse wave velocity measurements, determinants of pulse wave velocity, and the relationship that velocity measurements have with longitudinal kidney and cardiovascular outcomes...
June 13, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
Lei Liu, Bo Tian, Yu-Qiang Yuan, Zhong Du
In this paper, we investigate the coupled Sasa-Satsuma equations, which describe the simultaneous propagation of two ultrashort pulses in the birefringent or two-mode fiber with the third-order dispersion, self-steepening, and stimulated Raman scattering effects. Darboux-dressing transformation is applied to obtain the dark-bright soliton and semirational rogue-wave solutions. Dark-bright one solitons with the single-hump, double-hump, and even breather-like structures are presented. Interactions between the double-peak breather and different kinds of dark-bright solitons are studied...
May 2018: Physical Review. E
Melissa Maritz, Carla Mt Fourie, Johannes M VAN Rooyen, Aletta E Schutte
AIMS: Black populations from sub-Saharan Africa have a high prevalence of cardiovascular disease, which places significant strain on public health systems. Aortic stiffness is a prominent risk factor for cardiovascular disease development. We reported earlier that excessive alcohol use predicts aortic stiffness. However, we require a better understanding of other biomarkers involved in stiffness development, beyond alcohol use. Therefore, we determined which biomarkers (metabolic, inflammatory, endothelial activation and oxidative stress) relate to aortic stiffness in young and older black South Africans, self-reporting no alcohol-use...
June 12, 2018: Diabetes Research and Clinical Practice
Catherine Herlta, Rosa Starka, Haukur L Sigmarsson, Johannes Kauffold
OBJECTIVE: To test for the feasibility of transabdominal Doppler sonography (color, power, pulse wave) to define uterine perfusion characteristics throughout the estrous cycle in gilts. MATERIALS AND METHODS: A total of 15 gilts were synchronized for estrus and scanned in their following spontaneous cycle while being restrained in a purpose-designed mobile crate. To define uterine perfusion characteristics, vessels in between and within uterine cross-sections were imaged and recorded as video sequences to be analyzed by PixelFlux® software for perfused area (Amix), blood flow velocity (vmix) and intensity (Imix) as well as resistance (RIvmix) and pulsatility index (PIvmix)...
June 2018: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
Toshiaki Ohkuma, Toshiharu Ninomiya, Hirofumi Tomiyama, Kazuomi Kario, Satoshi Hoshide, Yoshikuni Kita, Toyoshi Inoguchi, Yasutaka Maeda, Katsuhiko Kohara, Yasuharu Tabara, Motoyuki Nakamura, Takayoshi Ohkubo, Hirotaka Watada, Masanori Munakata, Mitsuru Ohishi, Norihisa Ito, Michinari Nakamura, Tetsuo Shoji, Charalambos Vlachopoulos, Victor Aboyans, Akira Yamashina
BACKGROUND AND AIMS: The ankle-brachial index (ABI) is a predictor of cardiovascular disease (CVD) and premature death. However, few studies on this marker are available in the general Asian populations. This study aimed to investigate the association between ABI measured with oscillometry and the risk of these outcomes. METHODS: We conducted an individual participant data meta-analysis in 10,679 community-dwelling Japanese individuals without a history of CVD. The primary outcome was a composite of CVD events and all-cause mortality...
May 31, 2018: Atherosclerosis
Roberto Sansone, Maximilian Baaken, Patrick Horn, Dominik Schuler, Ralf Westenfeld, Nicolas Amabile, Malte Kelm, Christian Heiss
Endothelial microparticles (EMPs) are markers of endothelial injury and activation. The role of EMPs in arterial hypertension is not well understood and EMPs are increased both in arterial hypertension and coronary artery disease (CAD). The data presented here show EMPs as defined by CD31+ /41- , CD62e+ , and CD144+ surface markers and vascular hemodynamic parameters including office and central blood pressure, heart rate, aortic augmentation index, pulse wave velocity, flow-mediated dilation, nitroglycerin-mediated dilation, brachial artery diameter, hyperemic wall shear stress, and laser Doppler perfusion of the cutaneous microcirculation of normotensives and hypertensives with and without CAD...
August 2018: Data in Brief
Manal M Alem, Abdullah M Alshehri, Peter Mb Cahusac, Matthew R Walters
Background: The xanthine oxidase inhibitor allopurinol improves endothelial function in different populations, including patients with chronic heart failure (CHF). Its effect on arterial stiffness parameters is less clear. We investigated the effect of short-term low-dose allopurinol therapy on arterial stiffness in Saudi patients with stable mild-moderate CHF. Methods: A prospective, randomized, double-blind, placebo-controlled study was performed on 73 patients with mild-moderate CHF...
2018: Clinical Medicine Insights. Cardiology
Nicola Squillace, Daria Trabattoni, Antonio Muscatello, Francesca Sabbatini, Alessandro Maloberti, Cristina Giannattasio, Michela Masetti, Claudio Fenizia, Alessandro Soria, Mario Clerici, Andrea Gori, Alessandra Bandera
Objectives: To evaluate changes in pro-atherosclerotic biomarkers and endothelial function in patients initiating two different PI-based regimens as part of ART. Design: Prospective randomized 24 week study. Treatment-naive HIV-infected patients with CD4+ T cell count >250 cells/mm3 started PI-based regimens including atazanavir/ritonavir (Group A) or lopinavir/ritonavir (Group B) and were followed up in an observational follow-up study until week 96. Methods: The expression of immune activation and adhesion molecules on CD4+ and CD8+ cells and plasma cytokine levels were assessed at weeks 0, 4, 12, 24, 48, 72 and 96...
June 11, 2018: Journal of Antimicrobial Chemotherapy
Atsushi Tanaka, Atsushi Kawaguchi, Hirofumi Tomiyama, Tomoko Ishizu, Chisa Matsumoto, Yukihito Higashi, Bonpei Takase, Toru Suzuki, Shinichiro Ueda, Tsutomu Yamazaki, Tomoo Furumoto, Kazuomi Kario, Teruo Inoue, Shinji Koba, Yasuhiko Takemoto, Takuzo Hano, Masataka Sata, Yutaka Ishibashi, Koji Maemura, Yusuke Ohya, Taiji Furukawa, Hiroshi Ito, Akira Yamashina, Koichi Node
OBJECTIVES: The endothelial dysfunction-arterial stiffness-atherosclerosis continuum plays an important pathophysiological role in hypertension. The aim of this study was to investigate the cross-sectional association between serum uric acid (SUA) and vascular markers related to this continuum, and to assess the longitudinal association between SUA and endothelial function that represents the initial step of the continuum. METHODS: We evaluated the baseline associations between SUA levels and vascular markers that included flow-mediated vasodilatation (FMD), brachial-ankle pulse wave velocity (baPWV), and common carotid artery intima-media thickness (CCA-IMT) in 648 subjects receiving antihypertensive treatment...
June 6, 2018: International Journal of Cardiology
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