Search Results
Results 501 - 550 of 3631
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Nylén Johanna - - 2013
At elevated pressures (above 1.5 GPa) dihydrogen bonded ammonia borane, BH3NH3, undergoes a solid-solid phase transition with increasing temperature. The high pressure, high temperature (HPHT) phase precedes decomposition and evolves from the known high pressure, low temperature form with space group symmetry Cmc21 (Z = 4). Structural changes of BH3NH3 ...
Canepa Marco - - 2013
A significant inter-arm difference in systolic blood pressure (IADSBP) has recently been associated with worse cardiovascular outcomes. The authors hypothesized that part of this association is mediated by arterial stiffness, and examined the relationship between significant IADSBP and carotid-femoral pulse wave velocity (CF-PWV) in a sample from the Baltimore Longitudinal ...
Kent Alison L - - 2013
Blood pressure (BP) measurements have been increasingly used across neonatal intensive care units to determine and monitor hemodynamic status in neonates. A number of studies have attempted to derive normative blood pressure data in both preterm and term infants. However, this still remains a complex process, as several maternal and ...
Kumar Raekha - - 2013
Aims:Given a North-South divide in mortality in England, we aimed to assess the extent of a North-South divide in risk factors for cardiovascular disease (CVD), controlling for markers of socio-economic position (SEP).Methods:We undertook cross-sectional analyses using respondents from the 2006 Health Survey for England. We assessed mean systolic blood pressure, ...
Fraser Abigail A MRC Integrative Epidemiology Unit, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, UK. - - 2013
An accumulating body of evidence suggests that offspring of mothers with preeclampsia have higher blood pressure during childhood and young adulthood compared with women without preeclampsia. However, the evidence with regard to offspring glucose metabolism and lipids is more scant. We examined whether maternal hypertensive disorders of pregnancy (preeclampsia and ...
Egan Brent M BM University of South Carolina School of Medicine, Greenville, Care Coordination Institute, P.O. Box 367, Greenville, SC 29602. - - 2013
Hypertensive patients with clinical blood pressure (BP) uncontrolled on ≥3 antihypertensive medications (ie, apparent treatment-resistant hypertension [aTRH]) comprise ≈28% to 30% of all uncontrolled patients in the United States. However, the proportion receiving these medications in optimal doses is unknown; aTRH is used because treatment adherence and measurement artifacts were ...
Fici Francesco - - 2013
High level of circulating red cell distribution width (RDW) and neutrophil/lymphocyte ratio (N/L) may reflect ongoing vascular inflammation and plays an important role in pathophysiology of hypertension. We evaluate the effects of nebivolol and metoprolol on the RDW and N/L in new essential hypertensives. After baseline assessment, 72 patients were ...
Rodilla Enrique - - 2013
The objective of the present study was to assess the regression of left ventricular hypertrophy (LVH) during antihypertensive treatment, and its relationship with the changes in microalbuminuria. One hundred and sixty-eight previously untreated patients with echocardiographic LVH, 46 (27%) with microalbuminuria, were followed during a median period of 13 months ...
Roy Sébastien - - 2013
To assess the usefulness of central venous pressure (CVP), diastolic right ventricular pressure, and pulmonary capillary wedge pressure (PCWP) waveform analysis in predicting fluid responsiveness. A prospective observational study. Tertiary care university hospital. Forty-four patients undergoing coronary artery bypass grafting. Analysis of the a/v wave ratio of the PCWP, CVP, ...
Pataka Athanasia - - 2013
The obstructive sleep apnea syndrome (OSAS) is associated with the development/worsening of cardiovascular disease. OSAS is considered to be an independent risk factor for hypertension and is linked to increased mortality in the context of coronary heart disease, the development of cardiac arrhythmias and increased risk of developing mild pulmonary ...
Metcalf Olivia - - 2013
Background/Aims: There has been significant discussion surrounding the psychopathology of excessive gaming and whether it constitutes an addiction. The current study investigated physiological and subjective levels of arousal in gamers of two genres and the relationship between sensation seeking and gaming addiction. Methods: Heart rate (HR), blood pressure (BP) and ...
Tayel Dalia I - - 2013
Poor eating patterns formed early in life may lead to health problems in later years. These poor dietary habits are carried over into adolescence in Upper Egypt. The study aimed to assess the relationship between dietary pattern and blood pressure levels of adolescents in Sohag as one of Upper Egypt ...
Arnold Amy C AC Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University School of Medicine, 562 Preston Research Building, Nashville, TN 37232-8802, - - 2013
Orthostatic hypotension is a condition commonly affecting the elderly and is often accompanied by disabling presyncopal symptoms, syncope and impaired quality of life. The pathophysiology of orthostatic hypotension is linked to abnormal blood pressure regulatory mechanisms and autonomic insufficiency. As part of its diagnostic evaluation, a comprehensive history and medical ...
Kiss L F - - 2013
The pressure dependence of the saturation magnetization and Curie temperature was studied in melt-spun Fe60Mn20B20, Fe56Mn24B20 and Fe75B25 amorphous alloys up to 0.9 GPa, corresponding to volume changes up to 0.45%. In addition, in situ high-pressure (up to 40 GPa) x-ray diffraction was performed to determine the compressibility of the latter two alloys. ...
Park Jin Joo - - 2013
The role of resting pressure parameters, i.e. instantaneous wave-free ratio (iFR), and resting distal coronary pressure/aortic pressure (Pd/Pa) in assessing functionally significant stenosis remains controversial. We sought to assess the diagnostic performance of iFR and resting whole-cycle Pd/Pa in Asian patients. In this study, 238 consecutive lesions (no total occlusions) ...
de Vries Dick E - - 2013
Several classes of therapeutics have been explored to manage hypertension and to prevent its consequential cardiovascular risks. Pepstatin, being the first compound reported to inhibit renin-angiotensin conversion in the 1970's,(1) was a renin-inhibitor, a class of compounds lowering the blood pressure too strong. Next generations anti-hypertensive compounds, that inhibit the ...
Xue Baojian - - 2013
Premenopausal women have lower blood pressure and a reduced incidence of cardiovascular disease compared to age-matched men. Similar sex differences have been seen across species and in multiple animal models of hypertension. While important progress over the last decade has been made in elucidating some of the mechanisms underlying these ...
Cheng Susan - - 2013
Elevation in blood pressure (BP) increases risk for all cardiovascular events. Nevertheless, the extent to which different indices of BP elevation may be associated to varying degrees with different cardiovascular outcomes remains unclear. We studied 13340 participants (aged 54 ± 6 years, 56% women and 27% black) of the Atherosclerosis ...
Lagro Joep - - 2013
Normally, standing up causes a blood pressure (BP) drop within 15 seconds, followed by recovery to baseline driven by BP control mechanisms. The prognostic value of this initial BP drop, but also of the recovery hereafter, is unknown. The aim of this study was to examine the prognostic value of ...
Vilela-Martin José F - - 2013
Hypertensive crisis (HC) stands out as a form of acute elevation of blood pressure (BP). It can manifest itself as hypertensive emergency (HE) or hypertensive urgency (HU), which is usually accompanied with levels of diastolic BP ≥120 mmHg. Angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism may influence manifestations of HC. Thus, ...
Villano Stephanie M - - 2013
In this work, we present high-pressure rate rules and branching ratios for the addition of HO2 to olefins through the concerted addition channel to form an alkyl peroxy radical (HO2 + olefin → RO2) and through the radical addition channel to form a β-hydroperoxy alkyl radical (HO2 + olefin → ...
Tanner Rikki M - - 2013
Apparent treatment-resistant hypertension is defined as systolic/diastolic BP≥140/90 mmHg with concurrent use of three or more antihypertensive medication classes or use of four or more antihypertensive medication classes regardless of BP level. The prevalence of apparent treatment-resistant hypertension among Reasons for Geographic and Racial Differences in Stroke study participants treated ...
Valera Beatriz - - 2013
Recent evidence suggests that exposure to persistent organic pollutants (POPs) increases the risk of hypertension in environmentally exposed populations. High POP levels have been detected in Arctic populations and the exposure is related to high consumption of fish and marine mammals, which represent the traditional diet of these populations. We ...
Zhang Y-P - - 2013
As a major cardiovascular risk factor for stroke, coronary artery disease, heart failure and end-stage renal disease, hypertension affects approximately one billion people and causes large economic burden worldwide. Cytochrome P450 3A5 (CYP3A5), belonging to the CYP3A subfamily, has been implicated in the regulation of blood pressure and may serve ...
Noshad S - - 2013
Recent studies have suggested that visit-to-visit variability of blood pressure (BP) is correlated with microalbuminuria in patients with diabetes, independent of mean pressure. We investigated the contribution of BP variability to albuminuria progression in normoalbuminuric type 2 diabetes patients. BP and urinary albumin excretion of patients were assessed in each ...
Sossai Paolo - - 2013
Abstract Objective: To evaluate through an observational study on volunteers some important cardiovascular disease risk factors such as hypertension and snoring in a population from Limana, a town of a subalpine zone of northeastern Italy. Design: Limana residents were informed by post and at a public meeting and then attended ...
Dauphinot Virginie - - 2013
Impairment of the autonomic nervous system activity may be involved in the development of hypertension. Yet the prognostic values of heart rate variability and baroreflex sensitivity in the risk of new-onset ambulatory hypertension have not been investigated. We sought to assess the relationship between heart rate variability and baroreflex sensitivity ...
Ushigome Emi - - 2013
Recently, focus has been directed toward pulse pressure as a potentially independent risk factor for micro- and macrovascular disease. This study was designed to examine the relationship between pulse pressure taken at home and elevated albuminuria in patients with type 2 diabetes. This study is a post hoc analysis of ...
Sota T - - 2013
This study was undertaken to investigate the effects of lower body positive pressure (LBPP) on cardiovascular responses during a 15-min walking trial in young (22.1 +/- 0.4 years) and elderly women (67.8 +/- 1.1 years). The application of 20 mmHg LBPP reduced ground reaction forces by 31.2 +/- 0.5 kgw ...
Choi Hye Duck - - 2013
Hydrochlorothiazide (HCTZ) is used to treat uncomplicated hypertension. However, many studies have reported the variance of inter-individual response to HCTZ. A meta-analysis of published data was conducted to evaluate the pharmacogenetic associations of ACE I/D and ADD1 Gly460Trp polymorphisms with blood pressure changes during HCTZ therapy. To analyze the influence ...
Labat Carlos - - 2013
Whereas circulating levels of C-reactive protein (CRP) have been associated with, for example, arterial stiffness, subclinical atherosclerosis and metabolic syndrome, other inflammatory biomarkers with potential interest for these conditions may not be measurable systemically. The predictive value of salivary biomarkers in these contexts has remained largely unexplored. The aim of ...
Ryvicker Miriam - - 2013
Variations in patients' self-management knowledge, skills, and confidence as measured by the Patient Activation Measure (PAM) have been linked to variations in health behavior and outcomes. In a randomized trial, we tested two blood pressure (BP) control interventions, one grounded in activation principles. Study participants were Black home care patients ...
Schroeder Christoph - - 2013
The maintenance of blood pressure in the upright position requires intact autonomic cardiovascular reflexes. Diseases that affect the sympathetic innervation of the cardiovascular system result in a sustained fall in blood pressure upon standing (i.e., neurogenic orthostatic hypotension) that can impair the blood supply to the brain and other organs ...
Stewart Simon - - 2013
This study sought to identify the determinants of early blood pressure (BP) control associated with monotherapy in hypertensive individuals being managed in the primary care setting. The Valsartan Intensified Primary Care Reduction of Blood Pressure (VIPER-BP) study, was a multicenter, randomized controlled trial of an intensive approach to BP management. ...
Caciari Tiziana - - 2013
In the general population, cadmium seems to be responsible for hypertension, atherosclerosis and an increase in acute coronary events. Therefore, the purpose of this meta-analysis was to analyze controlled studies conducted on cadmium and arterial pressure in occupationally-exposed workers. After analyzing all the relevant articles found in the literature, 6 ...
Akilen Rajadurai - - 2013
The aim of this study was to systematically review and evaluate the effect of short-term administration of cinnamon on blood pressure regulation in patients with prediabetes and type 2 diabetes by performing a meta-analysis of randomized, placebo-controlled clinical trials. Medical literature for randomized controlled trials (RCTs) of the effect of ...
Rosner Bernard B Channing Division of Network Medicine, Department of Medicine, Harvard Medical School, 181 Longwood Ave, Boston, MA 02115, USA. - - 2013
The obesity epidemic in children makes it plausible that prevalence rates of elevated blood pressure (BP) are increasing over time. Yet, previous literature is inconsistent because of small sample sizes. Also, it is unclear whether adjusting for risk factors can explain longitudinal trends in prevalence of elevated BP. Thus, we ...
Kwok Man Ki - - 2013
Observationally, breastfeeding is associated with lower blood pressure in Western developed settings, whereas little association exists in developing settings. However, postnatal characteristics (e.g., breast milk substitutes, infection rates, underweight, and pubertal timing) differ between these settings. We examined the association of breastfeeding with blood pressure at ∼13 years, using multivariable ...
Matsusima Akito - - 2013
Abstract There is an increasing interest in dietary polyphenols for risk reduction in cardiovascular diseases. The aim of this study was to evaluate acute and chronic flow-mediated dilation (FMD) and blood pressure responses to daily intake of boysenberry juice. FMD of the brachial artery was measured in six subjects in ...
Lee Jang Hoon - - 2013
Abstract The purpose of this study was to determine the association between serum high-sensitivity C-reactive protein (hs-CRP) and incident hypertension. Study subjects were 452 Koreans who were enrolled in a cohort study. Log-transformed hs-CRP (odds ratio, 1.89; 95% confidence interval, 1.05-3.39; p = 0.035) was an independent predictor of incident hypertension. Inclusion ...
Harrison Teresa N - - 2013
The objective of this study was to evaluate the effectiveness of a telephonic outreach program to improve blood pressure (BP) control among patients with hypertension. The authors identified adults 18 years and older with uncontrolled BP within the previous 12 months. Patients received either an automated telephone call advising them to have ...
Hata J Steven - - 2013
PURPOSE Methods to optimize positive end-expiratory pressure (PEEP) in acute respiratory distress syndrome (ARDS) remain controversial despite decades of research. The pressure-volume curve (PVC), a graphical ventilator relationship, has been proposed for prescription of PEEP in ARDS. Whether the use of PVC's improves survival remains unclear. METHODS In this systematic ...
Määttä Kirsi - - 2013
The rs41318021 polymorphism in the SLC7A1 gene affects endothelial NO production through changes in L-arginine transport. This variation could thus hypothetically cause dysfunction of endothelium and lead to hypertension. The association of rs41318021 with hypertension was therefore studied in a Finnish cohort. A total of 412 hypertensive cases and 771 ...
Cheng Hao-Min HM Joanna Briggs Institute, Faculty of Health Sciences, The University of Adelaide, Adelaide, Australia; Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Hospital, Taipei, Taiwan; Department of Medicine, National Yang-Ming University, Taipei, - - 2013
This study sought to derive and validate outcome-driven thresholds of central blood pressure (CBP) for diagnosing hypertension. Current guidelines for managing patients with hypertension mainly rely on blood pressure (BP) measured at brachial arteries (cuff BP). However, BP measured at the central aorta (central BP [CBP]) may be a better ...
Kleman Mark - - 2013
Pseudohypertension has been described as a cause of resistant hypertension, due to medial hypertrophy of the artery from atherosclerosis. This phenomenon results in an elevated cuff pressure compared with intra-arterial measurements and is found primarily in populations with advanced age and atherosclerotic disease. The purpose of this review was to ...
Gifford Katherine A - - 2013
Hypertension has adverse effects on cognition, can alter cerebral vasculature integrity, and is associated with the pathogenesis of dementia. Using meta-analysis, we correlated blood pressure to multiple cognitive domains among older adults free of clinical stroke and dementia. We identified 230 studies indexed in PubMed and PsycINFO relating blood pressure ...
Erdogan Dogan - - 2013
Failure to decrease blood pressure (BP) normally during nighttime (non-dipping) in hypertension is associated with higher cardiovascular morbidity and mortality. In addition, non-dipping BP is associated with increased platelet activity and inflammatory response; however, there has been no study to evaluate the relationship of non-dipping BP to indices of platelet ...
Levine Alexander R - - 2013
Persistent low-level hypotension represents a barrier to discharging patients from the intensive care unit (ICU). Midodrine may be an effective adjunct to wean intravenous (IV) vasopressors and permit ICU discharge. We tested the hypothesis that midodrine, given to patients on IV vasopressors who otherwise met ICU discharge criteria, increased the ...
Zaloszyc Ariane - - 2013
Hypertension is frequent in chronic hemodialyzed patients and usually treated by reducing extracellular fluid. Probing dry weight only based on a clinical evaluation may be hazardous, especially in case of volume independent hypertension. We performed a 1-year retrospective study in three pediatric centers to define the relation between blood pressure ...
Tanaka Satoru - - 2013
Microalbuminuria is a marker of cardiovascular events. This study investigated the prevalence of microalbuminuria in the general population and the factors that can affect urinary excretion of albumin. Apparently healthy subjects who participated in a health checkup at our hospital were enrolled in this study (n = 7963, male 64.0%, ...
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