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May Ross W RW Family Institute, The Florida State - - 2014
Abstract Two studies examined autonomic and cardiovascular functioning that may link school burnout to cardiovascular risk factors in young healthy adult females. Study 1 (N = 136) investigated whether school burnout was related to resting values of blood pressure (BP) and blood pressure variability (BPV) through laboratory beat-to-beat BP assessment. ...
Solomonow-Avnon Deborah D Biorobotics and Biomechanics Lab (BRML), Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, 32000, Haifa, - - 2014
Footwear-generated biomechanical manipulation of lower-limb joints has been shown to influence lower-limb biomechanics. Numerous studies report the influence of such interventions on the knee, however little is known about the influence of these interventions on the hip. The present study analyzed kinetic and kinematic changes about the hip of 12 ...
Grobéty Bastien B Department of Medicine, Division of Physiology, Laboratory of Integrative Cardiovascular and Metabolic Physiology, University of Fribourg, 1700 Fribourg, - - 2014
An important consequence of ageing is a tendency for postprandial blood pressure to decline, which can lead to fainting. As a possible countermeasure, we investigated in healthy older adults the impact of drinking water before a breakfast meal on postprandial cardiovascular and autonomic functions. After a stable cardiovascular baseline recording ...
Tauzin L L 1Department of Neonatology,Territorial Hospital Centre,New - - 2014
Recent studies have shown that a low birth weight is a risk factor for increased systemic blood pressure (BP) in adulthood. Further, systemic BP and arterial stiffness (AS) are reported to be increased in adolescents born prematurely. The purpose of this study was to characterize systemic BP and AS in ...
Gee Scott L SL Respiratory Care Services, Arkansas Children's Hospital, Little Rock, - - 2014
Because of the progressive muscle weakness they experience, patients with Duchenne muscular dystrophy frequently utilize positive-pressure devices to maintain adequate bronchial hygiene and ventilation. This case illustrates the course of a 19-y-old male who presented with a perforated right tympanic membrane (TM) following the use of these devices. Perforation of ...
Costa Rui R School of Health Sciences, University of Aveiro, Aveiro, Portugal. Electronic address: - - 2014
The purpose of this study was to determine the effects of body position on respiratory muscle strength of young healthy subjects. Sixty-three (50 female, mean age 19.7±1.5 years) healthy subjects participated in the study. Participants were measured in the sitting position, semi-upright sitting position, and in the supine position. The ...
Zhou Yanhua Y National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, P.R. - - 2014
At present, vitrification has been widely applied to humans, mice and farm animals. To improve the efficiency of vitrification in straw, bovine oocytes were used to test a new two-step vitrification method in this study. When in vitro matured oocytes were exposed to 20% ethylene glycol (EG20) for 5 min and ...
La Bastide-Van Gemert Sacha S Department Epidemiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen 9713 GZ, The - - 2013
What causal relationships underlie the associations between ovarian stimulation, the IVF procedure, parental-, fertility- and child characteristics, and blood pressure (BP) and anthropometrics of 4-year-old IVF children? Causal models compatible with the data suggest the presence of positive direct effects of controlled ovarian hyperstimulation as applied in IVF (COH-IVF) on ...
Rashidi Zahra Z 1.Department of Biology, Faculty of Basic Sciences, Razi University, Kermanshah, - - 2014
This study examines the effects of hydrostatic pressure on in vitro maturation (IVM) of oocytes derived from in vitro grown follicles. In this experimental study, preantral follicles were isolated from 12-day-old female NMRI mice. Each follicle was cultured individually in Alpha Minimal Essential Medium (α-MEM) under mineral oil for 12 ...
Westgarth-Taylor Chris - - 2013
BACKGROUND: This study was designed to determine whether a decrease in renal oxygenation occurs during CO2 pneumoperitoneum in children with normal renal function undergoing laparoscopy. METHODS: Near infrared spectroscopy (NIRS) probes were applied to both the lateral flank (T10-L2) and lateral cerebral area of all patients with normal renal function ...
Beyhan K K Baskent University, Obstetrics and Gynecology, Ankara, - - 2013
To assess carbon dioxide pneumoperitoneum and its different pressure levels related to cellular injury on ovarian surface epithelium, endothelium, and fallopian tube ciliated epithelium in laparoscopic rat model. Twenty-four Wistar-Albino female rats were randomized into three groups. Laparotomy was applied for Group 1 (control). Groups 2 and 3 had laparoscopy ...
Rodrigues B A - - 2012
Stress processes, such as hydrostatic pressure treatment of oocytes in different species, have been reported to increased embryo rate following in vitro maturation (IVM). However, studies on high gaseous pressure (HGP) pretreatment in IVM of oocytes from domestic animals are lacking in the literature. This experiment aimed to test HGP ...
Carter Jason R JR Department of Kinesiology and Integrative Physiology, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA. - - 2013
The influence of the ovarian cycle on muscle sympathetic nerve activity (MSNA) remains controversial. Some studies report an increase of resting MSNA during the mid luteal (ML) phase of the ovarian cycle compared with the early follicular phase, whereas other studies do not. These inconsistent findings may be attributable, in ...
Pucher Philip - - 2012
Introduction. Despite the increasing awareness of natural orifice translumenal endoscopic surgery (NOTES), there remain obstacles to its wider implementation. We aim to examine the current evidence for the effects of variable uncontrolled insufflation pressures using either air or carbon dioxide in NOTES, as well the effects of NOTES procedures themselves, ...
Zhu Qing Q Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Public Health, Jinan, PR - - 2013
A meta-analysis of placebo-controlled trials was conducted to evaluate the effect of L-arginine supplementation on blood pressure (BP) in pregnancy. Trials were searched in PubMed, Embase, and Cochrane Library. A total of five trials were included in the meta-analysis. L-arginine supplementation exhibited a mean decrease of 3.07 mmHg (p = ...
Sartor Daniela M - - 2012
Several gastrointestinal hormones are commonly associated with satiety and digestion, but recent studies suggest they are also involved in regulating hemodynamic demand after a meal. These hormones released from the gut postprandially play a role in short-term cardiovascular regulation via a vagally mediated sympathoinhibitory reflex mechanism, similar to that of ...
Correia A T - - 2012
Nile tilapia Oreochromis niloticus early juveniles were maintained for 2 weeks in a pressurized system under a controlled photoperiod, at constant salinity and temperature. Groups of fish were exposed to one of three absolute hydrostatic pressure (HP) regimes: (1) a constant normal atmospheric pressure (100 kPa), (2) a constant 40 ...
Ismach Ariel - - 2012
Atomically smooth hexagonal boron nitride (h-BN) layers have very useful properties and thus potential applications for protective coatings, deep ultraviolet (DUV) emitters and as a dielectric for nanoelectronics devices. In this paper we report on the growth of h-BN by a low-pressure chemical vapor deposition (LPCVD) process using diborane and ...
Domínguez Eva - - 2012
Fruit cuticle composition and their mechanical performance have a special role during ripening since internal pressure is no longer sustained by the degraded cell walls of the pericarp but directly transmitted to epidermis and cuticle which could eventually crack. We have studied fruit growth, cuticle modifications and its biomechanics, and ...
Ojeda Norma B - - 2012
Numerous experimental studies suggest that oxidative stress contributes to the pathophysiology of hypertension and, importantly, that oxidative stress plays a more definitive role in mediating hypertension in males than in females. Intrauterine growth restriction induced by reduced uterine perfusion initiated at day 14 of gestation in the rat programs hypertension ...
Zachariah Justin P JP Framingham Heart Study, 73 Mount Wayte Ave, Framingham, MA 01702-5803, - - 2012
Mean and pulsatile components of hemodynamic load are related to cardiovascular disease. Vascular growth factors play a fundamental role in vascular remodeling. The links between growth factors and hemodynamic load components are not well described. In 3496 participants from the Framingham Heart Study third generation cohort (mean age: 40±9 years; ...
Umair Ahmad - - 2012
We report a uniform and low-defect synthesis of bilayer graphene on evaporated polycrystalline nickel films. We used atmospheric pressure chemical vapor deposition with ultra-fast substrate cooling after exposure to methane at 1,000°C. The optimized process parameters, i.e., growth time, annealing profile and flow rates of various gases, are reported. By ...
Kerckhoffs Roy C P - - 2012
Adult cardiac muscle adapts to mechanical changes in the environment by growth and remodeling (G&R) via a variety of mechanisms. Hypertrophy develops when the heart is subjected to chronic mechanical overload. In ventricular pressure overload (e.g. due to aortic stenosis) the heart typically reacts by concentric hypertrophic growth, characterized by ...
Fogari Roberto - - 2011
To evaluate the relationship between plasma plasminogen activator inhibitor-1 (PAI-1) and angiotensin II (Ang II) changes during treatment with imidapril and candesartan in hypertensive patients with metabolic syndrome. A total of 84 hypertensive patients with metabolic syndrome were randomized to imidapril 10 mg or candesartan 16 mg for 16 weeks. At weeks ...
Ishikawa Joji - - 2011
Salt restriction and/or diuretic treatment convert nondippers to dippers; however, few reports have compared the relationships among the changes in asleep ambulatory blood pressure, left ventricular mass index(LVMI), and relative wall thickness between nondippers and dippers. We treated 30 never-treated hypertensive outpatients [office blood pressure (OBP) > 140/90 mmHg]with salt ...
Blum James M - - 2011
The incidence of acute lung injury (ALI) in hypoxic patients undergoing surgery is currently unknown. Previous studies have identified lung protective ventilation strategies that are beneficial in the treatment of ALI. The authors sought to determine the incidence and examine the use of lung protective ventilation strategies in patients receiving ...
Schilling Thomas - - 2011
One-lung ventilation (OLV) results in alveolar proinflammatory effects, whereas their extent may depend on administration of anesthetic drugs. The current study evaluates the effects of different volatile anesthetics compared with an intravenous anesthetic and the relationship between pulmonary and systemic inflammation in patients undergoing open thoracic surgery. Sixty-three patients scheduled ...
Siew Melissa L - - 2011
Surfactant deficiency is a major cause of respiratory failure in newborns. We have investigated the roles of surfactant and positive end-expiratory pressure (PEEP) in the development of a functional residual capacity (FRC) and the distribution of ventilation at birth. Preterm rabbit pups (28 d GA) were delivered and received either ...
Strang C M - - 2011
Background: CO(2) -pneumoperitoneum (PP) is performed at varying abdominal pressures. We studied in an animal preparation the effect of increasing abdominal pressures on gas exchange during PP. Methods: Eighteen anaesthetized pigs were studied. Three abdominal pressures (8, 12 and 16 mmHg) were randomly selected in each animal. In six pigs, single-photon ...
Plataki Maria M Thoracic Diseases Research Unit, Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota 55905, - - 2011
Despite the well recognized role of mechanical ventilation in lung injury, appropriate surrogate markers to guide titration of ventilator settings remain elusive. One would like to strike a balance between protecting aerated units from overdistension while recruiting unstable units, thereby reducing tissue damage associated with their cyclic recruitment and derecruitment. ...
Young Neil H - - 2011
Acute lung injury and acute respiratory distress syndrome (ARDS) occur frequently in brain-injured patients. Single organ dysfunction ventilator strategies result in a conflict between lung protective ventilation and the prevention of secondary neurological insult(s). The objectives of this study were to determine if clinical and physiological benefits of high-frequency oscillatory ...
Johnson Philip - - 2011
Abstract  We present three patients with severe respiratory failure secondary to H1N1 influenza type A pneumonitis, in whom hypercapnia and respiratory acidosis were not controlled by the conventional mechanical lung ventilation or high-frequency oscillatory ventilation. Use of a pumpless arteriovenous extracorporeal carbon dioxide removal device (Novalung™, Inspiration Healthcare Ltd, Leicester, ...
Heuer Jan Florian - - 2011
To determine reciprocal and synergistic effects of acute intracranial hypertension and ARDS on neuronal and pulmonary damage and to define possible mechanisms. Twenty-eight mechanically ventilated pigs were randomized to four groups of seven each: control; acute intracranial hypertension (AICH); acute respiratory distress syndrome (ARDS); acute respiratory distress syndrome in combination ...
Hashiba Eiji - - 2011
We report a case in which a 2-year-old girl who underwent a right middle and lower lung lobectomy for congenital cystic adenomatoid malformation suffered massive bleeding and developed acute respiratory distress syndrome (ARDS) during the operation. She was ventilated with a high level of F(I)O(2) (0.75-1.0), PEEP (10-20 cmH(2)O), and PIP ...
Tsagogiorgas Charalambos - - 2011
INTRODUCTION: Total liquid ventilation (TLV) with perfluorocarbons has shown to improve cardiopulmonary function in the injured and immature lung; however there remains controversy over the normal lung. Hemodynamic effects of TLV in the normal lung currently remain undetermined. This study compared changes in cardiopulmonary and circulatory function caused by either ...
Andaluz A - - 2011
The objective of this study was to determine the pharmacodynamic effects in sheep of the anaesthetic alfaxalone in a 2-hydroxypropyl-β-cyclodextrin formulation. Seven Ripollesa sheep, weighing 43.0±6.6kg, were used in the study. Twenty-four hours after instrumentation, the sheep were anesthetised with alfaxalone (2mg/kg bodyweight IV) in cyclodextrin. Heart rate, arterial blood ...
Enekvist Bruno - - 2011
General anaesthesia impairs respiratory function in overweight patients. We wanted to determine whether increased tidal volume (VT), with unchanged end-tidal carbon dioxide partial pressure (PETCO2), affects blood concentrations of oxygen and sevoflurane in overweight patients. The present study is a prospective, randomised, clinical study. American Society of Anesthesiologists physical status ...
Della Rocca G - - 2011
Hypoxemia is considered to be the most important challenge during one-lung ventilation (OLV). Recent studies, however, have shown that one-lung ventilation can involve some lung damage and can therefore be per se a cause of hypoxemia. OLV can be associated to an injury: but the techniques used to improve oxygenation ...
Hopster Klaus - - 2011
Objective  To compare, ventilation using intermittent positive pressure ventilation (IPPV) with constant positive end-expiratory pressure (PEEP) and alveolar recruitment manoeuvres (RM) to classical IPPV without PEEP on gas exchange during anaesthesia and early recovery. Study design  Prospective randomized study. Animals  Twenty-four warm-blood horses, weight mean 548 ± SD 49 kg undergoing surgery for ...
Moerer O - - 2011
Acute lung failure is associated with high mortality and usually requires mechanical ventilation to ensure adequate gas exchange. However, mechanical ventilation itself can be associated with major complications and can aggravate pre-existing lung disease, thus contributing to morbidity and mortality. Extracorporeal gas exchange is increasingly used when conventional mechanical ventilation ...
Korovesi Ioanna - - 2011
BACKGROUND:: The inflammatory influence of prolonged mechanical ventilation in uninjured lungs remains a matter of controversy and largely unexplored in humans. The authors investigated pulmonary inflammation by using exhaled breath condensate (EBC) in mechanically ventilated, brain-injured patients in the absence of acute lung injury or sepsis and explored the potential ...
Yoshida Takeshi - - 2011
Background: Using a model lung connected to six different ventilators, with each ventilator in the airway pressure release ventilation mode, we measured differences in intrinsic positive end-expiratory pressure (PEEPi) during the expiratory phase and calculated the inspiratory and expiratory pressure time product (PTP) as an index of work of breathing ...
Fioretto Jose Roberto - - 2011
To compare the acute oxygenation effects of high-frequency oscillatory ventilation (HFOV) plus inhaled nitric oxide (iNO) with pressure-controlled assist/control ventilation (PCACV) plus iNO in acute hypoxemic respiratory failure (AHRF) children. Children with AHRF, aged between 1 month and 14 years under PCACV with PEEP ≥ 10 cmH(2) O were randomly ...
Rey-Santano C - - 2011
This study was designed to study effects of lung lavage versus the classical bolus instillation with a peptide-based synthetic surfactant (lucinactant) in a model of Meconium Aspiration Syndrome (MAS). Eighteen newborn lambs received meconium and were randomized to: the experimental meconium installation (eMAS) group-lambs with eMAS kept on conventional mechanical ...
Ayazi Shahin - - 2011
BACKGROUND AND AIMS: Exaggerated pressure fluctuation between the thorax and abdomen during exercise or with pulmonary disease may challenge the gastroesophageal barrier and allow reflux of gastric juice into the esophagus. The aim of this study was to investigate the pressure differentials in the region of the gastroesophageal junction to ...
Sanuki Takuro - - 2011
CONTEXT AND OBJECTIVE: We hypothesised that head and neck position could affect the effectiveness of ventilation with the i-gel airway. To test this hypothesis, we investigated the influence of different head and neck positions on oropharyngeal sealing pressures and ventilation scores during ventilation with i-gel. METHODS: A single, experienced supraglottic ...
Thille Arnaud W - - 2011
BACKGROUND: A simple method for effective bronchodilator aerosol delivery while continuing continuous positive airway pressure (CPAP) would be useful in patients with severe bronchial obstruction. We assessed the effectiveness of bronchodilator aerosol delivery during CPAP generated by a small open device, the Boussignac CPAP system, as well as the optimal ...
Struik Fransien M - - 2011
BACKGROUND AND OBJECTIVE: While chronic non-invasive ventilation is an effective treatment in patients with chronic respiratory failure due to chest wall deformity, it is unknown whether the time to adjust to chronic ventilation depends on the type of ventilation. The aim of this study was to compare volume and pressure ...
Tyagi A - - 2011
The potential advantages of pressure-controlled over volume-controlled ventilation during laparoscopic surgery have yet to be proven. We randomly assigned 42 patients with BMI < 30 kg.m(-2) scheduled for laparoscopic cholecystectomy to receive either pressure- or volume-controlled ventilation. Compared with volume-controlled ventilation, pressure-controlled ventilation resulted in a significant decrease in mean (SD) peak ...
Riscica F - - 2011
High-frequency percussive ventilation (HFPV) may be defined as flow-regulated time-cycled ventilation that creates controlled pressure and delivers a series of high-frequency subtidal volumes in combination with low-frequency breathing cycles. In recent years, the usefulness of HFPV has been clinically assessed as an alternative to conventional mechanical ventilation. In the clinical ...
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