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https://www.readbyqxmd.com/read/28437814/assessment-of-early-cardiovascular-risk-in-children-and-adolescents-with-essential-hypertension
#1
Andreja Stelcar, Evgenija Homsak, Natasa Marcun Varda
The aim of our study was to investigate some early markers of hypertensive target organ damage in hypertensive children and adolescents, and to detect those showing most prominent clinical significance. We included 100 children with essential hypertension (EH) and 50 age-matched healthy control children, and evaluated left ventricular mass (LVM), intima-media thickness in the carotid arteries (IMT), pulse wave velocity (PWV), microalbuminuria, biochemical parameters and some adipokines. Statistically significant differences between the 2 groups were observed for HDL-cholesterol, LDL-cholesterol, triglycerides, insulin, uric acid, glucose, apolipoprotein A1, and total adiponectin...
April 24, 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/28436207/racial-differences-in-the-association-between-heart-rate-variability-and-left-ventricular-mass
#2
LaBarron K Hill, Lana L Watkins, Alan L Hinderliter, James A Blumenthal, Andrew Sherwood
PURPOSE: Increased left ventricular mass (LVM) is an early precursor of target organ damage due to hypertension. Diminished parasympathetic cardiac control has been linked to both hypertension onset and left ventricular impairment; however, emerging evidence suggests that this pattern may be different in African Americans. The present study sought to determine if race impacts the relationship between parasympathetic cardiac control and LVM. METHODS: LVM was assessed via echocardiography in a sample (N = 148) of African American and White adults (Mean age = 33...
April 24, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28424627/blood-pressure-increase-during-oxygen-supplementation-in-chronic-kidney-disease-patients-is-mediated-by-vasoconstriction-independent-of-baroreflex-function
#3
René van der Bel, Müşerref Çalişkan, Robert A van Hulst, Johannes J van Lieshout, Erik S G Stroes, C T Paul Krediet
Renal hypoxia is thought to be an important pathophysiological factor in the progression of chronic kidney disease (CKD) and the associated hypertension. In a previous study among CKD patients, supplementation with 100% oxygen reduced sympathetic nerve activity (SNA) and lowered blood pressure (BP). We aimed to assess the underlying haemodynamic modulation and hypothesized a decreased systemic vascular resistance (SVR). To that end, 19 CKD patients were studied during 15-min intervals of increasing partial oxygen pressure (ppO2) from room air (0...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28421799/antihypertensive-effect-of-fermented-skim-camel-camelus-dromedarius-milk-on-spontaneously-hypertensive-rats
#4
Mohammed A Yahya, Omar A Alhaj, Abdullrahman S Al-Khalifah
BACKGROUND: Hypertension is one of the most common diseases in worldwide, thus prevention of hypertension is important in reducing the risks of cardiovascular disease. Milk contains bioactive peptides released during milk fermentation which lead to exhibit angiotensin I converting enzyme (ACE) inhibitory. OBJECTIVE: The aim of this study was to investigate the antihypertensive effect of fermented skim camel milk on rats and compared with unfermented skim camel milk as control...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28419371/sleep-a-window-into-autonomic-control-in-children-born-preterm-and-growth-restricted
#5
Stephanie R Yiallourou, Euan M Wallace, Christie Whatley, Alexsandria Odoi, Samantha Hollis, Aidan J Weichard, Jayan Shivanandhan Muthusamy, Suraj Varma, James Cameron, Om Narayan, Rosemary Sc Horne
Study Objectives: Preterm birth and fetal growth restriction (FGR) are both associated with risk of hypertension in adulthood. Mechanisms leading to this pathology are unclear. In children aged 5-12 years, who were born preterm and FGR, we used sleep as a tool to assess autonomic control with assessment of cardiovascular structure and function. Methods: 18 children born preterm and FGR, 15 born preterm with appropriate birth weights (AGA) and 20 AGA term-born children were studied...
April 17, 2017: Sleep
https://www.readbyqxmd.com/read/28415943/effects-of-scalp-block-with-bupivacaine-versus-levobupivacaine-on-haemodynamic-response-to-head-pinning-and-comparative-efficacies-in-postoperative-analgesia-a-randomized-controlled-trial
#6
Banu O Can, Hülya Bilgin
Objective This study was performed to determine the effects of scalp blocks with bupivacaine versus levobupivacaine on the haemodynamic response during craniotomy and the efficacies and analgesic requirements of these drugs postoperatively. Methods This randomized, prospective, placebo-controlled, double-blind study included 90 patients (age, 18-85 years; American Society of Anesthesiologists physical status, I or II). The patients were randomly divided into three groups: those who received 20 mL of 0.5% bupivacaine (Group B, n = 30), 20 mL of 0...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28415098/p569diastolic-dyssynchrony-is-associated-with-exercise-intolerance-in-hypertensive-patients-with-left-ventricular-hypertrophy
#7
I H Jung, H S Seo, M J Kim
Background: Left ventricular hypertrophy (LVH) is associated with intra-ventricular dyssynchrony at systolic phase during exercise in hypertensive patients. However, dypsnea on exertion is much more correlated with diastolic phase. We investigated whether LVH is associated with diastolic dyssynchrony during exercise in patients with hypertension. Methods: Ninety hypertensive patients with exertional dyspnea and 30 control individuals were enrolled. Exercise stress echocardiography was performed using a symptom limited, multistage supine bicycle test...
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28414603/cardiovascular-findings-in-ponies-with-equine-metabolic-syndrome
#8
Natalie Heliczer, Vinzenz Gerber, Rupert Bruckmaier, Johannes H van der Kolk, Cristobal Navas de Solis
OBJECTIVE To determine whether hypertension, high sympathetic tone, resting and exercising arrhythmias, and echocardiographic changes consistent with hypertensive cardiomyopathy were associated with equine metabolic syndrome (EMS) in ponies. DESIGN Prospective case-control study. ANIMALS 19 privately owned ponies with a diagnosis of EMS (history of laminitis, body condition score ≥ 7/9, cresty neck score ≥ 3/5, and abnormal oral sugar test result; cases) and 20 healthy control ponies. PROCEDURES Heart rate (HR), noninvasively measured arterial blood pressure (BP), markers of autonomic tone (splenic volume and HR variability), 24-hour and exercising ECGs, and echocardiograms were compared between cases and controls...
May 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28412986/effects-of-subacute-ingestion-of-chlorogenic-acids-on-sleep-architecture-and-energy-metabolism-through-activity-of-the-autonomic-nervous-system-a-randomised-placebo-controlled-double-blinded-cross-over-trial
#9
Insung Park, Ryuji Ochiai, Hitomi Ogata, Momoko Kayaba, Sayaka Hari, Masanobu Hibi, Yoshihisa Katsuragi, Makoto Satoh, Kumpei Tokuyama
Chlorogenic acids (CGA) are the most abundant polyphenols in coffee. Continuous consumption of CGA reduces body fat and body weight. Since energy metabolism and sleep are controlled by common regulatory factors, consumption of CGA might modulate sleep. Lack of sleep has been identified as a risk factor for obesity, hypertension and type 2 diabetes. The aim of this study was to determine the effects of ingesting CGA over 5 d on energy metabolism and sleep quality in humans. A total of nine healthy subjects (four male and five female) completed a placebo-controlled, double-blinded, cross-over intervention study...
April 17, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28411128/the-effects-of-experimental-gestational-hypertension-on-maternal-blood-pressure-and-fluid-intake-and-pre-weanling-hypothalamic-neuronal-activity
#10
Juan Arguelles, Carmen Perillan, Terry G Beltz, Baojian Xue, Daniel Badaue-Passos, Jose A Vega, Alan Kim Johnson
To examine the fetal programming effects of maternal hypertension, natriophilia and hyperreninemia [experimentally induced in rats by partial inter-renal aortic ligature (PAL) prior to mating] fos immunoreactivity was studied in 6-day-old offspring of PAL and control mothers. The purposes of the present set of experiments were twofold. The first was to characterize the effects of PAL on the mother's arterial blood pressure and intake of salt (1.8% NaCl solution) and water over the course of gestation. Second, was to study the pattern of neuronal activation in key brain areas of 6-day-old offspring treated with the dipsogen isoproterenol that were from PAL and control mothers...
April 11, 2017: Appetite
https://www.readbyqxmd.com/read/28392446/the-asymmetric-dimethylarginine-mediated-inhibition-of-nitric-oxide-in-the-rostral-ventrolateral-medulla-contributes-to-regulation-of-blood-pressure-in-hypertensive-rats
#11
Xing Tan, Ji-Kui Li, Jia-Cen Sun, Pei-Lei Jiao, Yang-Kai Wang, Zhao-Tang Wu, Bing Liu, Wei-Zhong Wang
Nitric oxide (NO) contributes to the central control of cardiovascular activity. The rostral ventrolateral medulla (RVLM) has been recognized as a pivotal region for maintaining basal blood pressure (BP) and sympathetic tone. It is reported that asymmetric dimethylarginine (ADMA), characterized as a cardiovascular risk marker, is an endogenous inhibitor of nitric oxide synthesis. The present was designed to determine the role of ADMA in the RVLM in the central control of BP in hypertensive rats. In Sprague Dawley (SD) rats, microinjection of ADMA into the RVLM dose-dependently increased BP, heart rate (HR), and renal sympathetic never activity (RSNA), but also reduced total NO production in the RVLM...
April 7, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28386627/baroreflex-gain-and-vasomotor-sympathetic-modulation-in-resistant-hypertension
#12
Isabelle Magalhães Guedes Freitas, Leonardo Barbosa de Almeida, Natália Portela Pereira, Pedro Augusto de Carvalho Mira, Rogério Baumgratz de Paula, Daniel Godoy Martinez, Edgar Toschi-Dias, Mateus Camaroti Laterza
PURPOSE: The aim of this study was to determine the gain and latency of arterial baroreflex control of heart rate in patients with resistant hypertension compared to patients with essential hypertension and normotensive subjects. METHODS: Eighteen patients with resistant hypertension (56 ± 10 years, mean of four antihypertensive drugs), 17 patients with essential hypertension (56 ± 11 years, mean of two antihypertensive drugs), and 17 untreated normotensive controls (50 ± 15 years) were evaluated by spectral analysis of the spontaneous fluctuations of arterial pressure (beat-to-beat) and heart rate (ECG)...
April 6, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28385080/blood-pressure-control-in-anticoagulated-patients-with-hypertension-and-atrial-fibrillation
#13
Vivencio Barrios, Carlos Escobar, Luis Prieto Valiente, Jose María Lobos, Diego Vargas-Ortega, Jose Polo, Nuria Marin Montañés
OBJECTIVE: To determine the clinical profile and blood pressure (BP) control rates of anticoagulated patients with hypertension and atrial fibrillation (AF). METHODS: The PAULA study was a multicenter cross-sectional/retrospective observational study conducted throughout Spain. The study included patients with nonvalvular AF who were receiving vitamin K antagonist therapy during the past year and were attended at primary care setting. Adequate BP control was defined according to 2013 ESC/ESH guidelines...
April 7, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28379619/blood-pressure-lowering-efficacy-of-renin-inhibitors-for-primary-hypertension
#14
REVIEW
Vijaya M Musini, Kendra Ak Lawrence, Patricia M Fortin, Ken Bassett, James M Wright
BACKGROUND: Hypertension is a chronic condition associated with an increased risk of mortality and morbidity. Renin is the enzyme responsible for converting angiotensinogen to angiotensin I, which is then converted to angiotensin II. Renin inhibitors are a new class of drugs that decrease blood pressure (BP) by preventing the formation of both angiotensin I and angiotensin II. OBJECTIVES: To quantify the dose-related BP lowering efficacy of renin inhibitors compared to placebo in the treatment of primary hypertension...
April 5, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28378431/left-ventricular-biomechanics-in-professional-football-players
#15
Thomas G von Lueder, Anders Hodt, Gard F Gjerdalen, Kjetil Steine
Chronic exercise induces adaptive changes of left ventricular (LV) ejection and filling capacities which may be detected by novel speckle-tracking echocardiography (STE) and tissue Doppler imaging (TDI)-based techniques. 103 consecutive male elite Norwegian soccer players and 46 age-matched healthy controls underwent echocardiography at rest. STE was used to assess LV torsional mechanics and LV systolic longitudinal strain (LS). Diastolic function was evaluated by trans-mitral blood flow, mitral annular velocities by TDI, and LV inflow propagation velocity by colour M-mode...
April 4, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28377067/efficacy-of-calcium-channel-blockers-on-major-cardiovascular-outcomes-for-the-treatment-of-hypertension-in-asian-populations-a-meta-analysis
#16
REVIEW
Karen C Tran, Alexander A Leung, Karen L Tang, Hude Quan, Nadia A Khan
BACKGROUND: Whether calcium channel blockers exert a greater effect on cardiovascular risk reduction in Asian populations than other antihypertensive agents is unclear. We conducted a meta-analysis of hypertension trials of dihydropyridine calcium channel blockers in Asian populations to clarify this association. METHODS: EMBASE, MEDLINE, and Cochrane databases were searched (from inception to August 2016) for randomized controlled trials on cardiovascular death, major adverse cardiovascular events, stroke, congestive heart failure, and coronary revascularization in Asian persons with hypertension...
January 21, 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28373647/fibrosis-quantification-in-hypertensive-heart-disease-with-lvh-and-non-lvh-findings-from-t1-mapping-and-contrast-free-cardiac-diffusion-weighted-imaging
#17
Lian-Ming Wu, Rui Wu, Yang-Rongzheng Ou, Bing-Hua Chen, Qiu-Ying Yao, Qing Lu, Jiani Hu, Meng Jiang, Dong-Aolei An, Jian-Rong Xu
This study assessed the extent of fibrosis and the relationship between the ADC value and systolic strain in hypertensive patients with left ventricular hypertrophy (HTN LVH) and hypertensive patients without LVH (HTN non-LVH) using cardiac diffusion-weighted imaging and T1 mapping. T1 mapping was performed in 13 HTN LVH (mean age, 56.23 ± 3.30 years), 17 HTN non-LVH (mean age, 56.41 ± 2.78 years), and 12 normal control subjects (mean age, 55.67 ± 3.08 years) with 3.0 T MRI using cardiac diffusion-weighted imaging and T1 mapping...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28371482/additive-effects-and-safety-of-fixed-combination-therapy-with-1-brinzolamide-and-0-5-timolol-versus-1-dorzolamide-and-0-5-timolol-in-prostaglandin-treated-glaucoma-patients
#18
Makoto Aihara, Misato Adachi, Hiroshi Matsuo, Tetsuya Togano, Takeo Fukuchi, Noriyuki Sasaki
PURPOSE: To compare the additive effects and safety of 1% brinzolamide/0.5% timolol fixed combination (BTFC) versus the low-dose regimen of 1% dorzolamide/0.5% timolol fixed combination (DTFC) in patients with open-angle glaucoma and ocular hypertension (OAG/OH) following treatment with prostaglandin analogues (PGAs). METHODS: A prospective, randomized, double-masked, multicentre, parallel-group and active-controlled study included 201 Japanese OAG/OH patients who had been treated with PGA...
April 3, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28364017/recording-sympathetic-nerve-activity-in-conscious-humans-and-other-mammals-guidelines-and-the-road-to-standardization
#19
Emma C J Hart, Geoffrey A Head, Jason R Carter, Gunnar Wallin, Clive N May, Shereen M Hamza, John E Hall, Nisha Charkoudian, John W Osborn
Over the past several decades, studies of the sympathetic nervous system in humans, sheep, rabbits, rats and mice have substantially increased mechanistic understanding of cardiovascular function and dysfunction. Recently, interest in sympathetic neural mechanisms contributing to blood pressure control has grown, due in part to the development of devices or surgical procedures, which treat hypertension by manipulating sympathetic outflow. Studies in animal models have provided important insights into physiological and pathophysiological mechanisms, which are not accessible in human studies...
March 31, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28353570/nonspecific-st-t-changes-associated-with-unsatisfactory-blood-pressure-control-among-adults-with-hypertension-in-china-evidence-from-the-csptt-study
#20
Huihui Bao, Huaxiu Cai, Yan Zhao, Xiao Huang, Fangfang Fan, Chunyan Zhang, Juxiang Li, Jing Chen, Kui Hong, Ping Li, Yanqing Wu, Qinhua Wu, Binyan Wang, Xiping Xu, Yigang Li, Yong Huo, Xiaoshu Cheng
Nonspecific ST-segment and T-wave (ST-T) changes represent one of the most prevalent electrocardiographic abnormalities in hypertensive patients. However, a limited number of studies have investigated the association between nonspecific ST-T changes and unsatisfactory blood pressure (BP) control in adults with hypertension.The study population comprised 15,038 hypertensive patients, who were selected from 20,702 participants in the China Stroke Primary Prevention Trial. The subjects were examined with electrocardiogram test at the initial visit in order to monitor baseline heart activity...
March 2017: Medicine (Baltimore)
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