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Zhang Feifang - - 2011
A novel cascade electro-osmotic pump (EOP) has been fabricated by alternately connecting a cation monolithic column and anion monolithic column in series. In this manner, the change of electric polarity between each stage of the cascade EOP is easily achieved and the pressure output of the EOP could be greatly ...
Fiore Maria Cecilia - - 2011
High salt intake (HS) is a risk factor for cardiovascular and kidney disease. Indeed, HS may promote blood-pressure-independent tissue injury via inflammatory factors. The lipid lowering 3-hydroxy 3-methylglutaryl-coenzyme A (HMG CoA) reductase inhibitors exert beneficial lipid-independent effects, reducing the expression and synthesis of inflammatory factors. We hypothesized that HS impairs ...
Min Stephen K - - 2011
Direct measurements of reaction volume, so far, have been limited to atmospheric pressure. This study describes a method for in situ reaction volume measurements under pressure using a variable volume piezometer. Reaction volumes for protonic ionization of weak acid buffering agents (MES, citric acid, sulfanilic acid, and phosphoric acid) were ...
Shahab Naghavi S - - 2011
This study addresses the structural and electronic properties of the NiAs- and MnP-type phases dominating in FeSe at high pressures. The analysis is performed using first-principle band structure calculations within the framework of the B3LYP hybrid exchange-correlation functional. Based on the volume-pressure relation deduced from the available experimental data, we optimize ...
Mani Awadhesh - - 2011
Temperature- and pressure-dependent electrical resistivity studies have been carried out on RuIn(3) single crystal in the 4-300 K range at various pressures between 0 and 5 GPa. While intrinsic semiconducting behaviour is inferred at higher temperatures above 275 K, the low temperature resistivity is primarily dictated by impurity effects. An insulator to metal transition ...
Elias John J JJ Department of Orthopaedic Surgery, Akron General Medical Center, OH, USA. - - 2011
Hamstrings loading has previously been shown to increase tibiofemoral posterior translation and external rotation, which could contribute to patellofemoral malalignment and elevated patellofemoral pressures. The current study characterizes the influence of forces applied by the hamstrings on patellofemoral kinematics and the pressure applied to patellofemoral cartilage. Ten knees were positioned ...
Gouli Aggeliki - - 2011
Eur J Clin Invest 2011 ABSTRACT: Background  Previous studies based on standard endocrine testing have generally shown a low prevalence of primary aldosteronism, a form of autonomous aldosterone secretion (AAS), in hypertensive individuals. The purpose of this case-control study was to evaluate whether use of appropriately defined controls and combined ...
Sodergren Mikael - - 2011
BACKGROUND: With advances in endoscopic diagnosis of early-stage gastrointestinal pathology, the need to offer minimally invasive treatment is attracting significant interest. It is essential that secure and consistent closure of full-thickness colonic resections and colotomy access be provided in natural orifice translumenal surgery (NOTES). This ex vivo porcine study aimed ...
Rademaker Miriam T - - 2011
Although acute administration of urocortin 2 has beneficial actions in heart failure, the integrated hemodynamic, hormonal, and renal effects of sustained urocortin 2 treatment in this disease have not been investigated. In the current study, we administered a 4-day infusion of a vehicle control (0.9% saline; n=6) or urocortin 2 ...
Le Victoria P - - 2011
Increased arterial stiffness and blood pressure are characteristic of humans and adult mice with reduced elastin levels caused by aging or genetic disease. Direct associations have been shown between increased arterial stiffness and hypertension in humans, but it is not known whether changes in mechanical properties or increased blood pressure ...
Taneja Indu - - 2011
While orthostatic tachycardia is the hallmark of postural tachycardia syndrome (POTS), orthostasis also initiates increased minute ventilation (Ve) and decreased end-tidal CO(2) in many patients. We hypothesized that chemoreflex sensitivity would be increased in patients with POTS. We therefore measured chemoreceptor sensitivity in 20 POTS (16 women and 4 men) ...
Koitabashi Norimichi N Division of Cardiology, Department of Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland 21205, - - 2011
The cardiac pathological response to sustained pressure overload involves myocyte hypertrophy and dysfunction along with interstitial changes such as fibrosis and reduced capillary density. These changes are orchestrated by mechanical forces and factors secreted between cells. One such secreted factor is TGF-β, which is generated by and interacts with multiple ...
Takenaka Joji - - 2011
Purpose: To investigate the influence of positional deviations on the rebound tonometer measurement. Materials and Methods: Ten white rabbits were used. A bottle of balanced salt solution was connected to the anterior chamber, and the IOP was altered by changing the height of the bottle. A pressure transducer was also ...
Cruz-Márquez J C - - 2011
Background Altitude training produces advantages over sea level training, but athletes require acclimatization to avoid discomfort or mountain sickness, in which the blood pressure control is essential. Objective To investigate the influence of moderate altitude on blood pressure and renin-angiotensin-aldosterone systems in a women's volleyball team (Honor Division - Spain). ...
Seymenoğlu Göktuğ - - 2011
Purpose: To determine if corneal biomechanical properties change during phases of the menstrual cycle. Methods: Twenty-five healthy women of reproductive age with no ocular pathology or systemic diseases were recruited. Corneal hysteresis, corneal resistance factor, Goldman-correlated intraocular pressure, and corneal-compensated intraocular pressure were measured by a Reichert ocular response analyzer ...
Park Young-Woo - - 2011
Objective  To evaluate the effect of central corneal thickness (CCT) on the measurement of intraocular pressure (IOP) with the rebound (TonoVet(®) ) and applanation (TonoPen XL(®) ) tonometers in beagle dogs. Animal studied  Both eyes of 60 clinically normal dogs were used. Procedures  The IOP was measured by the TonoVet(®) ...
Singh Irom Keshorjit - - 2011
To study the correlation between the volume of the spleen and hematological parameters, splenic vein diameter, portal pressure before shunt, portal pressure after shunt, reduction of portal pressure and grade of esophageal varices in patients with extrahepatic portal vein obstruction (EHPVO). Twenty-four patients with EHPVO who underwent splenectomy with leino-renal ...
Stowe Caroline Bell - - 2011
Hypertension (HTN) is the most common disease found in patients in primary care [JNC-7 Guidelines. The seventh report of the joint national committee on prevention, detection, evaluation, and treatment of high blood pressure. Hyper 2003;42:1206.]. It eventually requires medication if lifestyle modifications are not initiated or do not control the ...
Zhu Feng - - 2011
The autoantibodies (AAs) against angiotensin AT(1) receptors (AT(1) -AAs) have been discovered in patients with preeclampsia, malignant hypertension, and essential hypertension (EH); however, the mechanism of AA production remains to be investigated. Polymorphisms of HLA-DRB1 or HLA-DQB1 are related to production of AAs in autoimmune diseases. We hypothesis that the ...
Ye Mu - - 2011
Vibrio parahaemolyticus ATCC 43996 was grown at 15°C for 53 h, 20°C for 24 h, 25°C for 12 h, 30°C for 9 h, 35°C for 9 h, or 40°C for 6 h to early stationary phase. Oyster meats were blended, autoclaved at 121°C for 15 min, inoculated with V. parahaemolyticus, ...
Hamilton Douglas R - - 2011
This study investigated whether it is feasible to use sonography to monitor changes in the optic nerve sheath diameter in a porcine model. A fiber-optic intracranial pressure transducer was surgically placed through the frontal sinus directly into the brain parenchyma of adult Yorkshire pigs (n = 5). A second bolt ...
Cosenso-Martin Luciana N - - 2011
Vitamin D has an important role in bone mineralization and maintenance of calcium homeostasis. Thus, vitamin D deficiency is better characterized in the situations that involve the musculoskeletal system and bone metabolism. Recently, there is an interest in the association of vitamin D deficiency with the presence of metabolic syndrome, ...
Howard Catherine G CG Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University Health Sciences Center, New Orleans, Louisiana, - - 2011
Cyp1a1-Ren2 transgenic rats [strain name: TGR(Cyp1a1Ren2)], administered indole-3-carbinol (I3C) develop angiotensin (ANG) II-dependent hypertension due to hepatic expression of the Ren2 renin gene. Although AT1 receptor blockade prevents the development of hypertension and normalizes the elevated arterial blood pressure of Cyp1-Ren2 rats, little information is available regarding the blood pressure ...
Rao Smita S Department of Physical Therapy, New York University, 380 2nd Ave, 4th Floor, New York, NY, United States; Leon Root M.D. Motion Analysis Laboratory, Hospital for Special Surgery, New York, NY, United States. - - 2011
The purpose of our study was to examine 1st metatarsophalangeal (MTP) joint motion and flexibility and plantar loads in individuals with high, normal and low arch foot structures. Asymptomatic individuals (n=61), with high, normal and low arches participated in this study. Foot structure was quantified using malleolar valgus index (MVI) ...
Zachariah Justin P JP Framingham Heart Study, Framingham, MA 01702-5803, - - 2011
Clinical trials using cholesteryl ester transfer protein (CETP) inhibitors to raise high-density lipoprotein cholesterol (HDL-C) concentrations reported an 'off-target' blood pressure (BP) raising effect. We evaluated the relations of baseline plasma CETP activity and longitudinal BP change. One thousand, three hundred and seven Framingham Study participants free of cardiovascular disease ...
Sverdlov A L - - 2011
BACKGROUND: Nitric oxide (NO) is a modulator of left ventricular hypertrophy (LVH) and myocardial relaxation. The impact of NO availability on development of LVH has never been demonstrated in humans. We tested the hypotheses that elevation of asymmetric dimethylarginine (ADMA) concentrations (biochemical marker of decreased NO generation), and impairment of ...
Tadic Marijana - - 2011
Background: The impact of metabolic syndrome (MS) on the right ventricle (RV) is not clarified. The aim of this study was to evaluate the influence of MS and its components on RV structure and function. Methods: The study included 265 subjects with MS and 118 controls adjusted by age. MS ...
Liu Qingqing - - 2011
The effect of pressure on the crystalline structure and superconducting transition temperature (T(c)) of the 111-type Na(1-x)FeAs system using in situ high-pressure synchrotron X-ray powder diffraction and diamond anvil cell techniques is studied. A pressure-induced tetragonal to tetragonal isostructural phase transition was found. The systematic evolution of the FeAs(4) tetrahedron ...
Gopinath Bamini - - 2011
Elevated blood pressure (BP) during childhood and adolescence increases the risk of hypertension in later life. Although physical activity is known to positively moderate BP, data regarding this relationship are limited in prepubertal children. We aimed to assess the association between a range of physical activities (including indoor and outdoor ...
Davis Gerard - - 2011
It has been reported that the baroreflex control of heart rate (HR) and sympathetic nerve activity (SNA) is attenuated in obese Zucker rats (OZR) compared to age matched lean (LZR) animals. However, what is not known is the extent to which the baroreflex control of mean arterial blood pressure (MAP) ...
Bäuerle Jochen - - 2011
The aim of this work was to investigate the potential of ultrasound-based optic nerve sheath diameter (ONSD) measurements in detecting raised intracranial pressure in patients with idiopathic intracranial hypertension (IIH) and to describe ONSD response to lumbar puncture. In ten patients with newly diagnosed IIH, transorbital sonography was carried out ...
Mashima Yusuke - - 2011
Essential hypertension is a multifactorial disorder and a risk factor for renal failure and cardiovascular disease. Recently it was hypothesized that subtle acquired renal injury such as renal microvascular and tubulointerstitial damage induces salt-sensitive hypertension. The objective of this study was to examine the relationship between blood pressure and renal ...
Philipse A - - 2011
The thermodynamic equilibrium between charged colloids and an electrolyte reservoir is named after Frederic Donnan who first published on it one century ago (Donnan 1911 Z. Electrochem. 17 572). One of the intriguing features of the Donnan equilibrium is the ensuing osmotic equation of state which is a nonlinear one, ...
Akins Paul T - - 2011
BACKGROUND: Low pressure hydrocephalus (LPH) is an uncommon entity. Recognition of this treatable condition is important when clinicians are faced with the paradox of symptomatic hydrocephalus despite low intracranial pressures (ICP). Its etiology remains enigmatic. METHODS: We identified patients with LPH from the prospective, inpatient neuro-intensive care database over a ...
Wen Xiao-Dong - - 2011
In a theoretical study benzene is compressed up to 300GPa. The transformations found between molecular phases generally match the experimental findings in the moderate pressure regime (<20 GPa): phase I (Pbca) is found to be stable up to 4 GPa, while phase II (P43212) is preferred in a narrow pressure ...
Ceridon Maile L ML Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, - - 2011
The aim of this study was to determine the relationship between airway blood flow (Q(aw)), airway conductance (G(f-aw)) and pulmonary function in patients with stable HF. 12 controls (CTRL: age=63±9 years, FVC=98±15%pred, LVEF=61±6%) (all data presented as mean±SD), 16 patients with mild HF (HF-A, NYHA I-II: age=64±9 years, FVC=90±17%pred, LVEF=28±6%), ...
Husband Fiona A - - 2011
Scope: The impact of thermal and high pressure (HP) processing on the immunoreactivity of the allergens Mal d 1, Mal d 3 and Api g 1 has been investigated in apple and celeriac tissue, respectively. Methods and results: The extracted proteins were assessed using SDS-PAGE and Western blot. The results ...
Santoro Mario - - 2011
The discovery of nonmolecular carbon dioxide under high-pressure conditions shows that there are remarkable analogies between this important substance and other group IV oxides. A natural and long-standing question is whether compounds between CO(2) and SiO(2) are possible. Under ambient conditions, CO(2) and SiO(2) are thermodynamically stable and do not ...
Nomura Ryuichi - - 2011
A melt has greater volume than a silicate solid of the same composition. But this difference diminishes at high pressure, and the possibility that a melt sufficiently enriched in the heavy element iron might then become more dense than solids at the pressures in the interior of the Earth (and ...
Fogari Roberto - - 2011
Objective: The aim of this study was to assess the effect of aliskiren and amlopidine on ankle-foot volume (AFV) and pretibial subcutaneous tissue pressure (PSTP). Research design and methods: After 4-week placebo, 120 outpatients with grade 1 - 2 hypertension were randomized to amlodipine 10 mg or aliskiren 300 mg ...
Stępień Ewa - - 2011
OBJECTIVES: Osteoprotegerin (OPG) and osteopontin (OPN) are bone metabolism biomarkers which are involved in the regulation of vascular calcification processes and prediction of future adverse cardiac events. DESIGN AND METHODS: OPG, OPN levels and classic risk factors were determined in 130 asymptomatic and hypertensive subjects. Receiver operator characteristic (ROC) analysis ...
Yu S-Q SQ Department of Medicine, Michigan State University, East Lansing, - - 2011
The transient receptor potential vanilloid type 1 (TRPV1) channels have been implicated to play a role in blood pressure regulation. However, contribution of tissue specific TRPV1 to blood pressure regulation is largely unknown. Here, we test the hypothesis that TRPV1 expressed in dorsal root ganglia (DRG) of lower thoracic and ...
Hansen Hans-Christian - - 2011
Purpose:  To determine the distensibility and elastic characteristics of the optic nerve sheath for development of a basic understanding of ultrasound studies aimed to measure optic nerve sheath diameter (ONSD) for detection of acutely elevated intracranial pressure (ICP). Methods:  Isolated human optic nerves preparations obtained from autopsies were submitted to ...
Strahler Jana - - 2011
Salivary α-amylase (sAA) has been proposed as a marker of autonomic activity, but its association with blood pressure and antihypertensive drugs (AD) is unknown. Basal sAA rhythm was assessed immediately after awakening, 30min after awakening, 11am, 3pm, and 8pm in 78 older adults. Profiles differed significantly between men and women, ...
Molla Shahnawaz - - 2011
Pressure drop in a gas-liquid slug flow through a long microchannel of rectangular cross-section was investigated. Pressure measurements in a lengthy (∼0.8 m) microchannel determined the pressure gradient to be constant in a flow where gas bubbles progressively expanded and the flow velocity increased due to a significant pressure drop. ...
Pattanayak Subrat Kumar - - 2011
The structure and dynamical properties of liquid N-methylacetamides (NMA) are calculated at five different temperatures and at four different pressures using classical molecular dynamics simulations. Our results are analyzed in terms of pressure-induced changes in structural properties by investigating the radial distribution functions of different atoms in NMA molecule. It ...
Gravesen Flemming F Department of Gastroenterology, Aalborg Hospital, Hobrovej, 9000 Aalborg, Denmark. - - 2011
To study the effect of viscosity on axial force in the esophagus during primary peristalsis using a newly validated impedance-based axial force recording technique. A probe able to simultaneously measure both axial force and manometry was positioned above the lower esophageal sphincter. Potable tap water and three thickened fluids were ...
Jung Klaus - - 2011
A thorough understanding of the intraoral pressure conditions of patients with different forms of malocclusion may help to characterize their aetiology in more detail and improve orthodontic treatment approaches by adding strategies to achieve a normalization of intraoral pressure levels. These pressure curve analyses should not only provide information on ...
Kristek Frantisek - - 2011
Long-term increase of blood pressure represents one of the most important risk factors triggering many cardiovascular diseases, and via counter-regulatory mechanisms it is itself modulated by them. Adequate perfusion of the respective areas with nutrients requires appropriate production of vasodilatory and vasoconstrictory agents. Disharmony among them has an important impact ...
Ko J S - - 2011
AIM: To evaluate the changes in pulmonary artery pressure (PAP) during ethanol embolization and to identify the most vulnerable period associated with cardiovascular collapse in patients with arteriovenous malformations (AVMs). MATERIALS AND METHODS: Twenty-three patients (30 sessions) with AVMs were enrolled. PAP was measured at the following times: baseline (T(baseline)); ...
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