Search Results
Results 251 - 300 of 1875
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Alamiry Mohammed A H - - 2011
The target dye, which is a derivative of Merocyanine 540 bearing a naphthoxazole head group, persists as a monomer in ethanol solution but dimerizes in water under ambient conditions. Analysis of the absorption spectrum indicates that the dimer has an oblique geometry with the two molecules being held at an ...
Willeford Breanna - - 2012
Abstract Background: Orthostatic hypotension and cerebral autoregulation have been extensively studied in the rabbit. However, these physiologic responses have not been previously studied utilizing a rabbit in the sitting position under anesthesia. Methods: This unusual position was obtained as the preferred orientation based on geometry requirements of associated equipment for ...
Dimitriou Gabriel - - 2011
: To determine whether composite extubation indices can predict extubation outcome in preterm infants. : Prospective observational study. : Level III neonatal intensive care unit. : Fifty-six preterm infants cared for in the neonatal intensive care unit of a tertiary teaching hospital during 2007 and 2008. : None. : The ...
Dabney Michael J - - 2011
Important interfacial processes in disciplines ranging from medicine to the separations sciences occur over a wide range of pressures, temperatures, and time scales. In this paper we report a new high-pressure total internal reflection fluorescence (HP-TIRF) apparatus that allows rapid fluorescence measurements of sub-monolayers in contact with liquids and supercritical ...
Takenaka Joji - - 2011
Purpose: To investigate the influence of positional deviations on rebound tonometer measurement of intraocular pressure in humans. Materials and methods: Intraocular pressure was measured using the Icare rebound tonometer on the right eyes of 53 subjects in various conditions as follows: first, at a distance of 4, 6, or 8 mm ...
Mancia Giuseppe G Clinica Medica, University of Milano-Bicocca, Ospedale San Gerardo, Monza, Italy. - - 2011
Hypertension treatment guidelines recommend that blood pressure (BP) be lowered to <140/90 mm Hg, but that a reduction to <130/80 mm Hg be adopted in patients at high cardiovascular (CV) risk. We investigated the CV and renal benefits associated with these BP targets in the high-CV-risk population of the Ongoing ...
Finocchietti Sara - - 2011
The fundamental aspects of bone associated pain in humans are not fully understood. In this study pressure pain applied to the tibia bone was investigated experimentally in humans and by means of computer simulations. In humans, the pressure pain sensitivity and the relation between tissue indentation and pressure intensity were ...
Klein Klaus Ulrich - - 2011
BACKGROUND:: A novel uncoated fluorescence quenching probe allows fast measurement of oxygen tension in vessels and tissue. The present study reports the first use of the technology for dual measurements of arterial (paO2) and brain tissue oxygen tension (ptiO2) during hypoxic challenge in a pig model. METHODS:: Eight pigs were ...
Dengler Julius - - 2011
PURPOSE: Cerebral tissue oxygenation (PbrO(2)) is most frequently monitored using a Licox CC1.SB system (LX, Integra Neuroscience, France) but recently a new probe-the Neurovent-PTO (NV)-was introduced by a different manufacturer (Raumedic, Germany). There are no prospective data on how these probes compare in clinical routine. We therefore compared both probes ...
Kiefer Michael - - 2011
Telemetric intracranial pressure (ICP) monitoring has been a challenge throughout several decades. Major obstruction was to minimize zero drift of absolute pressure sensors. A new promising product demonstrating in-vitro excellent long-term stability has been tested for its reliability in an animal model with a follow-up of up to 2 years. ...
Diefenbacher J - - 2011
Nuclear magnetic resonance is widely employed in studies of chemical reactions and molecular motions at moderate pressure and temperature, but for CO(2) solutions under supercritical conditions encountered in geological or mineral sequestration (pressures to 150 atm and temperatures to 150 °C) a specialized variable-temperature probe is required. The critical component of ...
Mandapati John Shekhar Raju - - 2011
Long-term use of topical and systemic steroids produces secondary open-angle glaucoma similar to chronic simple glaucoma. The increased intraocular pressure [IOP] caused by prolonged steroid therapy is reversible but the damage produced by it is irreversible. In this study, we analyzed 200 patients with steroid-induced glaucoma, who were on systemic ...
Li Yanping - - 2011
Maternal famine exposure has been associated with higher blood pressure in the offspring. The aim of the present study was to examine the associations of early life exposure to the 1959-1961 Chinese famine with the risk of hypertension in later life, and to examine whether a nutritional 'rich' environment in ...
Marks Stephen D - - 2011
Renal fibromuscular dysplasia (FMD) can cause hypertension, and previous reports suggest that FMD is familial. We hypothesized that, in families containing an individual with proven FMD, relatives of index cases would have an increased risk of hypertension. ACTA2 mutations cause a spectrum of extra-renal arteriopathy, leading to our second hypothesis ...
Lucas Rebekah Ann Isabel - - 2012
We tested the hypothesis that wearing commercially available compression leggings would attenuate postural reductions in mean arterial blood pressure (MAP) and cerebral perfusion during heat stress, particularly in older adults. Six older (70 years ± 4) and six younger (29 years ± 4) males were heated (esophageal temperature raised 0.5°C) ...
Urbina Elaine M - - 2011
Hypertension is associated with increased left ventricular mass (LVM) and carotid intima-media thickness (cIMT), which predict cardiovascular (CV) events in adults. Whether target organ damage is found in pre-hypertensive youth is not known. The authors measured body mass index, blood pressure, fasting glucose, insulin, lipids and C-reactive protein, LVM/height(2.7) (LVM ...
Persell Stephen D - - 2011
The prevalence of resistant hypertension is unknown. Much previous knowledge comes from referral populations or clinical trial participants. Using data from the National Health and Nutrition Examination Survey from 2003 through 2008, nonpregnant adults with hypertension were classified as resistant if their blood pressure was ≥140/90 mm Hg and they ...
Tsai Ching-Wei - - 2011
Background. Renal vascular resistance [resistive index (RI)] has been associated with albuminuria in patients with type 2 diabetes. We studied the correlations between renal artery RI and urinary albumin excretion in adolescents and young adults. Methods. From May 2006 through September 2008, we established a cohort of adolescents and young ...
Wright Jacqueline D JD Division of Health and Nutrition Examination Surveys, National Center for Health Statistics, U.S Department of Health & Human Services, Centers for Disease Control and Prevention, Hyattsville, MD 20782, - - 2011
This report presents estimates for the period 2001-2008 of means and selected percentiles of systolic and diastolic blood pressure by sex, race or ethnicity, age, and hypertension status in adults aged 18 and over. Demographic characteristics were collected during a personal interview, and blood pressures were measured during a physician ...
Norton J L - - 2011
Background: Central venous pressure (CVP) is a used as an estimation of intravascular volume status in various species. Techniques for measuring CVP in horses have been described, but the repeatability of these readings at a single time point or over time has not been established. Hypothesis: That CVP measurements in ...
Taylor Brent C - - 2011
The National Heart, Lung and Blood Institute currently defines a blood pressure under 120/80 as "normal." To examine the independent effects of diastolic (DBP) and systolic blood pressure (SBP) on mortality and to estimate the number of Americans affected by accounting for these effects in the definition of "normal." DESIGN, ...
Uhoya Walter O - - 2011
High pressure x-ray diffraction and electrical resistance measurements have been carried out on SrFe(2)As(2) to a pressure of 23 GPa and temperature of 10 K using a synchrotron source and designer diamond anvils. At ambient temperature, a phase transition from the tetragonal phase to a collapsed tetragonal (CT) phase is observed at ...
Park Sang O - - 2011
AIM: To overcome limitations of inaccurate tidal volume (TV) delivery by conventional selfinflating paediatric and adult bags during paediatric and adolescent resuscitation, we designed a novel target volume marked bag (TVMB) with four compression points marked on an adult bag surface. The aim of this study was to evaluate the ...
Alptekin Sebahaddin - - 2011
We study the structural behavior of SnSe under the hydrostatic pressure using a constant pressure ab initio technique. We find SnSe undergoes a structural second order phase transition from the orthorhombic (Pnma) structure to orthorhombic (Cmcm) structure in the constant pressure simulation at 7 GPa which is in good agreement ...
Bhardwaj Purvee - - 2011
In the present paper, we report an investigation into the high-pressure structural phase transition of rare earth antimonides (DySb and ErSb). A modified interaction potential model (MIPM) (including the covalency effect) has been developed. Phase transition pressures are associated with a sudden collapse in volume, indicating the occurrence of a ...
Gangavati Anupama - - 2011
To investigate the relationships between uncontrolled and controlled hypertension, orthostatic hypotension (OH), and falls in participants of the Maintenance of Balance, Independent Living, Intellect, and Zest in the Elderly of Boston Study (N=722, mean age 78.1). Prospective population-based study. Community. Seven hundred twenty-two adults aged 70 and older living within ...
Rosano Caterina - - 2011
To examine whether the association between hypertension and decline in gait speed is significant in well-functioning older adults and whether other health-related factors, such as brain, kidney, and heart function, can explain it. Longitudinal cohort study. Cardiovascular Health Study. Of 2,733 potential participants with a brain magnetic resonance imaging (MRI) ...
Jones Miranda R MR Department of Epidemiology, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, - - 2011
High chronic exposure to inorganic arsenic may contribute to the development of hypertension. Limited information is available, however, on the association of low to moderate exposure to inorganic arsenic with blood pressure levels and hypertension. We investigated the association of exposure to inorganic arsenic (as measured in urine) with systolic ...
- - 2011
Hypertension is a modifiable risk factor for cardiovascular disease. It affects one in three adults in the United States and contributes to one out of every seven deaths and nearly half of all cardiovascular disease-related deaths in the United States. CDC analyzed data from the National Health and Nutrition Examination ...
Szczepaniak-ChicheĊ‚ Ludwina - - 2011
Arterial hypertension and its complications are associated with an increased morbidity and mortality in patients after aortic coarctation (CoA) repair. It is debatable whether early surgery can prevent it. Residual stenosis of descending aorta (AoD) and stiffness in the precoarctation region supposedly lead to hypertension. The aim of this study ...
Van Buren Peter N - - 2012
Hypertension is prevalent in adult and pediatric end-stage renal disease patients on hemodialysis. Volume overload is a primary factor contributing to hypertension, and attaining true dry weight remains a priority for nephrologists. Other contributing factors to hypertension include activation of the sympathetic and renin-angiotensin-aldosterone systems, endothelial cell dysfunction, arterial stiffness, ...
Gupta Alok K - - 2011
To determine whether modest elevations of fasting serum glucose (FSG) and resting blood pressure (BP) in healthy adults are associated with differential serum vitamin D concentrations. Disease-free adults in the National Health and Nutrition Examination Survey 2001-2006 were assessed. Prediabetes (PreDM) and prehypertension (PreHTN) were diagnosed using American Diabetes Association ...
Ahn Sangnam - - 2011
Nutrition transition theory attributes increased prevalence of high blood pressure to excess body weight associated with lifestyle changes in recent decades. We examined the association of changes in self-reported hypertension diagnoses with changes in body mass index (BMI), health-related behaviors, health status, and social risk factors among older Chinese adults ...
Lin F-H - - 2011
This study evaluates prevalence of hypertension in 1996 and 2006, and examines the relationship between hypertension and weight of Taiwanese young adolescents. Two cross-sectional surveys, administered in 1996 and 2006, to junior-high school in Taipei were included. Anthropometric and blood pressure were measured using standard methods, and structured questionnaire was ...
Gupta Alok K - - 2011
High blood pressure and elevated serum glucose levels often precede adverse cardiovascular events. The cardiovascular risk in otherwise healthy US adults with prehypertension (PreHTN) and/or prediabetes (PreDM), although perceived to be high, is largely undocumented. Coexisting PreHTN and PreDM in healthy US adults, correlates with untoward alterations in the commonly ...
Smith Patrick J - - 2011
The relationship between vascular health--including flow-mediated dilation (FMD) and intima medial thickness (IMT)--and neurocognitive performance was examined in a sample of 124 sedentary, middle-aged adults with high blood pressure (systolic blood pressure, SBP, 130-159 mmHg or diastolic blood pressure, DBP, 85-99 mmHg) who were overweight or obese (body mass index ...
Stoicescu Manuela - - 2011
Introduction: Plasma renin level is an important marker of hypertension in the young adults. The purpose of this study was to determine the role of increased levels of plasmatic renin in the pathogenesis of hypertension in young adults and to highlight the main conditions underlying the pathogenesis of hypertension in ...
Kolb Sara E - - 2011
Hypertension affects approximately 73 million Americans. Clients and providers working together to control the disease can help prevent life-threatening illnesses. Patient perceptions about their illness can influence health behaviors, but little is known about the perceptions of Mexican American adults in relation to hypertension. This descriptive study used semistructured interviews ...
Viera Anthony J - - 2011
Nondippers (people whose sleep systolic blood pressure [SBP] fails to decrease >10% from daytime SBP) have increased risk of cardiovascular disease. The prevalence of nondipping in younger adults has not been well studied, nor has its value for predicting hypertension. We examined the prevalence of nondipping in a substudy of ...
Schultz Clyde - - 2011
Tafluprost is an FP receptor antagonist that has been shown in clinical studies in Europe and Japan to be extremely useful in treating elevated intraocular pressure and glaucoma. The drug is well tolerated and appears to be at least equal in effectiveness and perhaps superior to other protanoids for routine ...
Onodera Jun - - 2010
Oscillometric determination of blood pressure may be advantageous, as cuff inflation requires lower cuff pressure and shorter duration than deflation. In this observational study, we compared the blood pressure value, cuff pressure, and duration of cuff inflation between a prototype of inflationary non-invasive blood pressure (NIBP) and conventional deflationary NIBP ...
Chow Eric Y - - 2010
Glaucoma is a detrimental disease that causes blindness in millions of people worldwide. There are numerous treatments to slow the condition but none are totally effective and all have significant side effects. Currently, a continuous monitoring device is not available, but its development may open up new avenues for treatment. ...
Strand Bjørn Heine BH MRC National Survey of Healthand Development, MRC Unit for Lifelong Health and Ageing, London, UK. - - 2012
In this study, the authors investigate gender-specific effects of childhood socio-economic position (SEP) on adiposity and blood pressure at three time points in adulthood. Mixed models were used to assess the association of childhood SEP with body mass index (BMI), waist circumference, systolic blood pressure (SBP) and diastolic blood pressure ...
Lefevre Sjannie - - 2011
Air-breathing fish are common in the tropics, and their importance in Asian aquaculture is increasing, but the respiratory physiology of some of the key species such as the striped catfish, Pangasianodon hypophthalmus Sauvage 1878 is unstudied. P. hypophthalmus is an interesting species as it appears to possess both well-developed gills ...
Ellis Charles - - 2010
We examined actions to control high blood pressure (HBP) and health-care provider recommendations for blood pressure control among adults by racial/ethnic group and rural/urban residence. We examined data from 45,024 participants with HBP in the 2007 Behavioral Risk Factor Surveillance System (BRFSS) survey. We used multiple logistic regression analyses to ...
Hakim Fahed - - 2011
There are limited data on the acute effects of water-pipe tobacco smoking, commonly known as water-pipe smoking (WPS), on cardiopulmonary parameters. This study evaluated the acute effects of a single 30-min session of WPS on carboxyhemoglobin (COHb) levels, pulmonary function test results, vital signs, fractional exhaled nitric oxide (Feno) levels, ...
Kimura Bruce J - - 2011
Although the inspiratory 'collapse' of the inferior vena cava (IVC) has been used to signify normal central venous pressure, the effect of the manner of  breathing  IVC size is incompletely understood. As intra-abdominal pressure rises during descent of the diaphragm, we hypothesized that inspiration through diaphragmatic excursion may have a ...
Lambrechts Kate - - 2011
The purpose of the study was to analyze the ultrasound lung comets (ULCs) variation, which are a sign of extra-vascular lung water. Forty-two healthy individuals performed breath-hold diving in different conditions: dynamic surface apnea; deep variable-weight apnea and shallow, face immersed without effort (static maximal and non-maximal). The number of ...
Leboulanger Nicolas - - 2010
The objective of the study was to determine the clinical and physiologic benefits of noninvasive respiratory support (NRS) (continuous positive airway pressure or noninvasive positive pressure ventilation) for infants with a Pierre Robin sequence (PRS). Breathing patterns, respiratory efforts, and gas exchange were analyzed for 7 infants with a PRS ...
Wang Shu-Zhen - - 2010
Prehypertension is a new category designated by the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC7) in 2003. Managing prehypertension with nonpharmacological intervention is possibly beneficial to the prevention of hypertension. In this study, we observed the effect of slow ...
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