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Results 201 - 250 of 846
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Vercammen Anne - - 2011
Acidothermophilic bacteria like Alicyclobacillus acidoterrestris and Bacillus coagulans can cause spoilage of heat-processed acidic foods because they form spores with very high heat resistance and can grow at low pH. The objective of this work was to study the germination and inactivation of A. acidoterrestris and B. coagulans spores by ...
Karadag R - - 2011
To evaluate ocular pulse amplitude (OPA), IOP values, and hemodynamic changes in the ophthalmic artery, central retinal artery, and short posterior ciliary artery in dipper and non-dipper patients. A total of 59 right eye measurements of healthy subjects with normotensive were included to the study. Ambulatory blood pressure (BP) monitoring ...
Furugen M - - 2011
Here we examined whether the Matsuda-DeFronzo insulin sensitivity index (ISI-M) is more efficient than the homeostasis model assessment of insulin resistance (HOMA-IR) for assessing risk of hypertension. Cross-sectional and longitudinal analyses were conducted using normotensive subjects who were selected among 1399 subjects in the Tanno-Sobetsu cohort. In the cross-sectional analysis ...
Brothers R Matthew - - 2011
The extent to which heat stress compromises blood pressure control is variable among individuals, with some individuals becoming very intolerant to a hypotensive challenge, such as lower body negative pressure (LBNP) while heat stressed, while others are relatively tolerant. Heat stress itself reduces indexes of ventricular filling pressure, including central ...
Sasaguri Toshiyuki - - 2011
Polymorphisms at codons 49 and 389 of the β(1)-adrenergic receptor gene have been shown to alter the receptor function in vitro, whereas it remains controversial whether they influence the response to β-blocker in vivo. In the present study, we investigated whether these polymorphisms influence the acute changes of heart rate ...
Kurashima Hiroaki - - 2011
PURPOSE: To determine the proportion of latanoprost low-responders among cynomolgus monkeys, and to evaluate the switching efficacy from latanoprost to tafluprost in latanoprost low-responder monkeys. METHODS: Thirty-nine ocular normotensive monkeys were used in this study. Latanoprost low-responders were detected using a 2-step evaluation procedure. In the first step, the response ...
Fernandez Laura Morales - - 2011
PURPOSE: To examine the reproducibility of the new digital Goldmann applanation tonometer AT 900D (DGT) for measuring intraocular pressure and to compare its readings with those provided by the conventional analog Goldmann tonometer (AGT). METHODS: In 3 different sessions (S1, S2, and S3), 3 intraocular pressure measurements were made in ...
Wang Fen - - 2011
BACKGROUND AND AIMS: The use of sedatives during colonoscopy remains controversial because of its safety concerns. We compared cardiorespiratory function and sedative and analgesic effects in sedative colonoscopy, using combinations of midazolam with either fentanyl or propofol. METHODS: Eligible patients (n = 480) received 1.0-2.0 mg midazolam alone (n = 160), midazolam combined with either ...
Righetti Lolita - - 2011
Two </sub>Co<sub>1-x</sub>Mg<sub>x</sub>MoO<sub>4 oxide compositions (x = 0 and x =0.4) are investigated for their pressure indicator applications possibilities. The first order phase half-transition induced by pressure application from the β to the α-form, i.e. from the high temperature/low pressure form to the high pressure/low temperature form, is studied thanks to ...
Wang Xiao-Mao - - 2011
Here we describe the nature and implications of the "concentration polarization" (CP) layer that is formed during ultrafiltration of colloidal particles using a new approach in which the solid pressure, which arises from inter-particle interactions, and the inherent osmotic pressure are separately considered. The approach makes use of the particle ...
Sporková Alexandra A Department of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic. - - 2011
Alterations in renal function contribute to Goldblatt two-kidney, one-clip (2K1C) hypertension. A previous study indicated that bioavailability of cytochrome P-450 metabolites epoxyeicosatrienoic acids (EETs) is decreased while that of 20-hydroxyeicosatetraenoic acids (20-HETE) is increased in this model. We utilized the inhibitor of soluble epoxide hydrolase cis-4-[4-(3-adamantan-1-yl-ureido)-cyclohexyloxy]-benzoic acid (c-AUCB) and HET-0016, ...
Uchiyama Hiromasa - - 2011
The α-glucosyl hesperidin (Hsp-G)-induced improvement of both the dissolution and absorption properties of pranlukast hemihydrate (PLH) was achieved by means of a high-pressure homogenization (HPH) processing. The average particle size in the HPH-processed suspension was decreased significantly after 50 cycles of processing and reached a constant size of ca. 300nm. ...
Palatini Paolo - - 2011
Abstract Aim. To investigate the blood pressure (BP) reaction to public speaking performed according to different emotionally distressing scenarios in stage 1 hypertension. Methods. We assessed 64 hypertensive and 30 normotensive subjects. They performed three speech tasks with neutral, anger and anxiety scenarios. BP was assessed with the Finometer beat-to-beat ...
Niwa Ken - - 2011
The binary skutterudite CoP(3) has a large void at the body-centered site of each cubic unit cell and is, therefore, called a nonfilled skutterudite. We investigated its room-temperature compression behavior up to 40.4 GPa in helium and argon using a diamond-anvil cell. High-pressure in situ X-ray diffraction and Raman scattering ...
Fontana Vanessa - - 2011
  Inconsistent matrix metalloproteinases (MMPs) levels have been reported in hypertension, with higher, similar and lower MMPs levels reported in hypertensives compared with normotensives. Differences between studies may reflect lack of control of drug effects, accompanying diseases and pre-analytical issues. We compared MMP-2, MMP-8 and MMP-9 levels in 38 untreated ...
Sun Dan Dan - - 2011
The aim of this study was to explore the changes of the Doppler flow spectra of the superior vena cava (SVC) in a rat model of chronic pulmonary hypertension (PH). Thirty-two rats were injected with monocrotaline (MCT) to establish a model of chronic PH. Eight rats from the control group ...
Tai Kamilia - - 2011
Postprandial hypotension may be influenced by the digestion of fat. The aim of the present study was to evaluate the hypothesis that products of fat digestion mediate the hypotensive response to fat. In part A of the study, nine healthy older subjects were studied on three separate occasions in randomised ...
Demazeau Gérard - - 2011
In biology, scientist's interest for high hydrostatic pressure (HHP) has increased over the last twenty years, for both research and industrial developments, mainly because of the low energy associated with its application in liquid phase and its capacity to inactivate pathogens. It is now considered as an interesting alternative to ...
Nguyen Duy N - - 2011
The dielectric breakdown behavior of dielectric coatings in studied for different ambient gas pressures with femtosecond laser pulses. At 10<sup>-7</sup> Torr, the multiple femtosecond pulse damage threshold, F<sub>m</sub>, is about 10% of the single pulse damage fluence F(1) for hafnia and silica films compared to about 65% and 50%, respectively, ...
Wanajo Isao - - 2011
To compare the potency and ureteral selectivity of the selective β(2)/β(3)-adrenoceptor agonist KUL-7211 with those of the nonselective β-adrenoceptor agonist isoproterenol, selective β(2)-adrenoceptor agonist terbutaline, and selective β(3)-adrenoceptor agonist CL-316243, we performed the study using an isolated porcine ureter and a porcine model of acute unilateral ureteral obstruction. The effects ...
Buckow Roman - - 2011
The effect of combined heat and pressure on the Maillard reaction between bovine serum albumin (BSA) and glucose was investigated. The effects in the range of 60-132 °C and at 0.1-600 MPa on the lysine availability of BSA were investigated at isothermal/isobaric conditions. The kinetic results showed that the protein-sugar ...
Jin Yu - - 2011
The aim of this study was to investigate the heritability as well as genetic and environmental correlations of left ventricular (LV) structural and functional traits in complex pedigrees of a Caucasian population. We randomly recruited 459 white European subjects from 52 families (50% women; mean age 45 years). LV structure ...
Kacar Kocak Mehtap - - 2011
Cadmium (Cd) is a heavy metal which affects many systems in humans and animals as a consequence of environmental and industrial pollution. The aim of this study was to investigate the effect of chronic Cd toxicity on blood pressure and plasma viscosity. Experimental group rats were given doses that contained ...
Vavrinec Peter - - 2011
BACKGROUND: Chronic renal failure (CRF) is associated with hypertension, proteinuria, loss of myogenic constriction (MC) of mesenteric arteries and increased production of reactive oxygen species (ROS) under experimental conditions. Previous results showed that ACE (angiotensin-converting enzyme activity) inhibitor therapy is effective in slowing down the progression of disease. Therefore, we ...
Gjesdal Ola - - 2011
In a majority of patients with left bundle-branch block (LBBB), there is abnormal leftward motion of the interventricular septum during the preejection phase. This motion was considered to be passive, caused by early rise in right ventricular (RV) pressure, and has therefore been excluded from most indices of left ventricular ...
Coppo Mirella - - 2011
BackgroundLow-grade inflammation facilitates the development of essential hypertension and target organ damage (TOD). Recently, human T-lymphocytes were shown to be endowed with a functional active renin-angiotensin system (RAS). We investigated whether in hypertensive patients a selective angiotensin (Ang) II-driven upregulation of T-cell RAS occurs and whether it is differently modulated ...
Jylhävä J - - 2011
Pentraxin 3 (PTX3) is a novel candidate immunoinflammatory marker that has been reported to be associated with cardiometabolic risk factors and to predict adverse outcomes in individuals with cardiovascular disease (CVD). Despite being a member of the same pentraxin protein family as C-reactive protein (CRP), PTX3 probably reflects different aspects ...
Yano Yuichiro Y Division of Internal Medicine, Saigo National Health Insurance Hospital, Miyazaki, Japan. - - 2011
We assessed the additional effects of eplerenone to angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin II receptor blockers (ARBs) on 24-h blood pressure (BP) level, fibrinolytic activity, and cardiovascular protection in elderly (>60 years) hypertensive patients. In total, 20 patients (mean age 74 years, 25% men), whose BP was uncontrolled despite ...
Velisavljevic Nenad - - 2011
Static high pressure diamond anvil cell experiments were performed on three polycrystalline Zr samples having varying interstitial impurity concentrations. Systematic increase in transition pressure with the increase in the amount of interstitial impurities is observed for the martensitic [Formula: see text] structural phase transition in Zr. Significant room temperature crystal ...
Capelli Junior Jonas - - 2011
Matrix metalloproteinases (MMPs) and monocyte chemoattractants are key modulators of the biological mechanisms triggered in the periodontium by mechanical forces. The gingival crevicular fluid (GCF) provides a non-invasive method to assess longitudinally the release of inflammatory mediators during orthodontic tooth movement. The goal of this study was to examine the ...
Braun Cordula - - 2011
High-pressure synthesis allows both fundamental and materials science research to gain unprecedented insight into the inner nature of materials properties at extreme environment conditions. Here, we report on the high-pressure synthesis and characterization of γ-Ca(3)N(2) and the high-pressure behavior of Mg(3)N(2). Investigation of M(3)N(2) (M = Ca, Mg) at high-pressure ...
Fenhammar Johan - - 2011
BACKGROUND:: This study was conducted to investigate the role of toll-like receptor 4 (TLR4) in mediating acute kidney injury in endotoxemic sheep using the selective TLR4 inhibitor TAK-242. METHODS:: A randomized, controlled, experimental study was performed with 20 adult Texel crossbred sheep. Before an Escherichia coli lipopolysaccharide infusion (3 μg ...
Ng Manwa L - - 2011
The present study investigated the aerodynamic differences between standard oesophageal (SE) and tracheoesophageal (TE) speech. Airflow and air pressure values below the pharyngoesophageal segment were obtained from 10 SE and 12 TE superior speakers of Cantonese. Airflow data were directly measured from sustained vowels, and sub-pharyngoesophageal segment pressure was estimated ...
Lundin P - - 2011
Bioimpedance spectroscopy can identify pathological changes related to precancerous lesions of the cervix uteri and esophagus. It therefore has the potential to detect early reflux-related changes in the esophageal mucosa, such as dilated intercellular spaces. The reliable detection of dilated intercellular spaces at the time of endoscopy would yield a ...
Krauss Achim H P - - 2011
The aim of the study was to investigate the ocular hypotensive activity of a nitric oxide (NO)-donating latanoprost, BOL-303259-X, following topical administration. The effect of BOL-303259-X (also known as NCX 116 and PF-3187207) on intraocular pressure (IOP) was investigated in monkeys with laser-induced ocular hypertension, dogs with naturally-occurring glaucoma and ...
Minati Ludovico - - 2011
Brain near-infrared spectroscopy (NIRS) is an emerging neurophysiological tool that combines straightforward activity localization with cost-economy, portability and patient compatibility. NIRS is proving its empirical utility across specific cognitive and emotional paradigms. However, a potential limitation is that it is not only sensitive to haemodynamic changes taking place in the ...
Lee Hyun-Sun - - 2011
BACKGROUND: To determine biomaterial components, the components must first be transferred into solution; thus extraction is the first step in biomaterial analysis. High hydrostatic pressure technology was used for ginsenoside extraction from ginseng roots. In the extraction of fresh and red ginseng, high hydrostatic pressure extraction (HHPE) was found to ...
Marco Aurora - - 2011
Abstract The aim of this work was to study the effect of olive powder combined with high hydrostatic pressure (HHP) on the inactivation of Bacillus cereus spores, to use it as an additional control hurdle in beverages pasteurised by this technology. With this purpose, reference medium prepared at different concentrations ...
Hu Chun-Qiu - - 2011
BACKGROUND: Peanut allergy is one of the most serious food allergies, and Ara h 2 is one of the most important peanut allergens as it is recognised by serum immunoglobulin E from more than 90% of peanut-allergic individuals. Dynamic high-pressure microfluidisation has been widely used in food processing as a ...
M Sainz-Barriga - - 2011
Portal vein flow (PVF), pressure (PVP) and hepatic venous pressure gradients (HVPG) were prospectively assessed with the aim of exploring their relationship and of better defining hyperflow and portal hypertension (PHT) during liver transplantation (LT). Eighty-one LT were analyzed. No correlation between PVF and PVP was observed. Increases of central ...
George Eric M EM Department of Physiology and Biophysics, University of Mississippi Medical Center, 2500 N State St, Jackson, MS 39216, - - 2011
Recent in vitro studies have reported that heme oxygenase 1 (HO-1) downregulates the angiostatic protein soluble fms-like tyrosine kinase 1 from placental villous explants and that the HO-1 metabolites CO and bilirubin negatively regulate endothelin 1 and reactive oxygen species. Although soluble fms-like tyrosine kinase 1, endothelin 1, and reactive ...
Chu Chen Y - - 2011
Three bioreactor configurations were employed in these investigations, which consisted of working volumes of 10, 1.2 and 1.2L. Power spectrum diagrams of bed pressure fluctuation were used with hydraulic retention times (HRT) and geometric factors to identify the flow regimes in the bioreactors, where HRT varied from 8 to 1h. ...
Goyal Sameer - - 2011
Valsartan has significant blood pressure lowering effect via modulating renin-angiotensin system although its mechanism of action in isoproterenol (ISO)-induced myocardial injury is largely unknown. We therefore evaluated the effect of valsartan in ISO-induced oxidative stress and cardiotoxicity during β-adrenergic receptor stimulation in rats. ISO (85 mg/kg, s.c.) was administered on thirteenth ...
Usui Yasuhiro - - 2011
OBJECTIVE: To evaluate whether obstructive sleep apnea (OSA) contributes directly to left ventricular (LV) diastolic dysfunction. METHODS: Seventy-four non-obese male OSA (apnea hypopnea index (AHI)⩾5/h) patients without cardiac disease, hypertension or diabetes were enrolled. Echocardiography, pulse wave velocity (PWV) measurements and laboratory testing were performed in all patients. LV diastolic ...
Fox Ervin R ER Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA. - - 2011
The prevalence of hypertension in African Americans (AAs) is higher than in other US groups; yet, few have performed genome-wide association studies (GWASs) in AA. Among people of European descent, GWASs have identified genetic variants at 13 loci that are associated with blood pressure. It is unknown if these variants ...
Azevedo Bruna Fernandes - - 2011
The present studies were conducted to changes arising from mercury poisoning in the central nervous system (CNS), with a focus on determining the receptors and neurotransmitters involved. Currently, little is known regarding the neurological basis of the cardiopulmonary effects of mercury poisoning. We evaluated changes in systolic arterial pressure (SAP), ...
Arora A K - - 2011
Zirconium tungstate turns amorphous above 2 GPa. Amorphous-Zr(WO(4))(2) is studied in situ using synchrotron x-ray diffraction and Raman spectroscopy at high pressure. The height and the position of the first peak of the structure factor as a function of pressure exhibit discontinuous changes suggesting an amorphous to amorphous transformation around 19 GPa. The ...
Potekhin Sergey A - - 2011
The bilayer phase transitions from the ripple gel phase (P'(β)) to the liquid crystal phase (L(α)) of a series of 1,2-diacylphosphatidylcholines containing a linear saturated acyl chain (C=14 - 19) have been studied by high pressure scanning microcalorimetry. It has been shown that at ambient pressure, the transition temperature increases ...
Girard Olivier - - 2011
This study aimed to determine changes in spring-mass model (SMM) characteristics, plantar pressures, and muscle activity induced by the repetition of sprints in soccer-specific conditions; i.e., on natural grass with soccer shoes. Thirteen soccer players performed 6 × 20 m sprints interspersed with 20 s of passive recovery. Plantar pressure distribution was recorded via ...
Hanfland Michael - - 2011
By compressing elemental silicon and hydrogen in a diamond anvil cell, we have synthesized polymeric silicon tetrahydride (SiH_{4}) at 124 GPa and 300 K. In situ synchrotron x-ray diffraction reveals that the compound forms the insulating I4_{1}/a structure previously proposed from ab initio calculations for the high-pressure phase of silane. From a series of ...
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