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Stevenson David - - 2012
Cardiac elastances are highly invasive to measure directly, but are clinically useful due to the amount of information embedded in them. Information about the cardiac elastance, which can be used to estimate it, can be found in the downstream pressure waveforms of the aortic pressure (P(ao)) and the pulmonary artery ...
Pournajafian Alireza - - 2012
Intravenous opioids are administered to prevent and control hemodynamic changes due to endotracheal intubation. Except for special cases such as preeclampsia, these drugs are not recommended for parturants candidate for cesarean section because of the respiratory depression caused in the newborn. According to rapid metabolism of remifentanil, the current study ...
Hosseinzadeh Hamzeh H Department of Anesthesiology, Tabriz University of Medical Sciences, Tabriz, - - 2012
Emergence from general anesthesia and especially post-extubation phase are the stages associated with cardiovascular hyperdynamic status in which patients with increased intracranial pressure (ICP) could be affected by severe cardiac and or cerebral complications. Administering remifentanil could be helpful in maintaining the hemodynamic stability at the end of the surgery ...
Ebrahimi Dehkordi Masih M Department of Anesthesiology, Shahid Beheshti University of Medical Sciences, Tehran, - - 2012
Considering the growing trend of laryngeal surgeries and the need to protect the airway during and after surgery, among several therapeutic regimens to induce sedation, two regimens of propofol-fentanyl and propofol-midazolam were compared in microlaryngeal surgeries. Forty ASA I-II class patients undergoing microlaryngeal surgeries and referring routinely for postoperative visits ...
Tanaka Ryou R Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, - - 2012
Enalapril maleate, the oldest and most widely distributed ACEI, and alacepril, the newest and antioxidant ACEI, were compared in the point of cardioprotective effect for Dahl salt-sensitive rat. In order to evaluate the correlation between the three factors, cardiac fibrosis and blood pressure/oxidative-stress marker (tissue TBARS), index of correlation was ...
Barnes Jill N JN Human Integrative Physiology Laboratory, Department of Anesthesiology, Mayo Clinic, Rochester MN, - - 2012
The magnitude of decrease in blood pressure (BP) during a vasoactive drug bolus may be associated with the calculated baroreflex sensitivity (BRS). The purpose of the present study was to evaluate whether sympathetic and/or cardiac BRS relates to the extent of change in BP and whether this was altered by ...
Perni Stefano - - 2011
Ultra-high molecular weight polyethylene (UHMWPE) is frequently employed in joint replacements because of its high biocompatibility; however, this material does not exhibit particularly strong wear performance, thus potentially reducing the longevity of such devices. Numerous techniques have been investigated to increase the resistance to wear of UHMWPE, but they are ...
McKie Paul M - - 2011
The natriuretic peptides, specifically atrial natriuretic peptide (ANP), are increasingly recognized to play a fundamental role in blood pressure (BP) regulation. This role in BP regulation reflects the pluripotent cardiorenal actions of ANP, which include diuresis, enhancement of renal blood flow and glomerular filtration rate, systemic vasodilatation, suppression of aldosterone, ...
Brown Russell D - - 2011
Awareness of sex differences in the pathology of cardiovascular disease is increasing. Previously, we have shown a role for the angiotensin type 2 receptor (AT(2)R) in the sex differences in the arterial pressure response to Ang II. Tubuloglomerular feedback (TGF) contributes in setting pressure-natriuresis properties, and its responsiveness is closely ...
Gao Yuejuan - - 2011
The purpose of this study was to investigate the vascular effects of microbubble-enhanced pulsed high-pressure ultrasound on liver blood perfusion. In the presence of circulating lipid-shell microbubbles, a focused ultrasound transducer was used to transcutaneously treat eight livers of healthy rabbits for perfusion analysis and to treat three livers with ...
Saheki Akira - - 2011
We examined the effect of 0-20% back pressure, which functions as a resistance to emulsification in a high-pressure homogenizer, on emulsification of lipid nanodispersions (emulsion and liposomes) less than 100nm in diameter. Back pressure in the range of 0.9-3.8% of the emulsification pressure enhanced the emulsification, and the particle diameter ...
Schulz Emilia - - 2011
The third harmonic generated during femtosecond filamentation in air is studied. By establishing a gradient from atmospheric pressure to vacuum conditions, we truncate the filament abruptly at defined positions. The introduction of the pressure gradient leads to an enhancement of the generated third harmonic radiation by 3 orders of magnitude. ...
Yiannikouris Frederique - - 2012
Previous studies demonstrated that overexpression of angiotensinogen (AGT) in adipose tissue increased blood pressure. However, the contribution of endogenous AGT in adipocytes to the systemic renin-angiotensin system (RAS) and blood pressure control is undefined. To define a role of adipocyte-derived AGT, mice with loxP sites flanking exon 2 of the ...
Smith Phillip P - - 2012
Bladder compliance is one expression of the pressure and volume relationship as the bladder fills. In addition to passive elements, autonomous micromotional detrusor activity contributes to this relationship. In the mouse cystometric model, compliance pressure contributes to voiding expulsive pressure. During attempts to isolate the detrusor contractile component of this ...
Eswaraiah Varrla - - 2011
Ultra-thin graphene (UG) has been prepared by exfoliation of graphite oxide by a novel technique based on focused solar radiation. Graphene based engine oil nanofluids have been prepared and their frictional characteristics (FC), anti-wear (AW) and extreme pressure (EP) properties have been evaluated. The improvement in FC, AW and EP ...
Bondonno Catherine P - - 2011
Flavonoids and nitrates in fruits and vegetables may protect against cardiovascular disease. Dietary flavonoids and nitrates can augment nitric oxide status via distinct pathways, which may improve endothelial function and lower blood pressure. Recent studies suggest that the combination of flavonoids and nitrates can enhance nitric oxide production in the ...
Abdel-Zaher Ahmed O - - 2011
In this study, the effects of simvastatin on the blood pressure and on the antihypertensive activity of ramipril in hypertensive hypercholesterolemic animals and patients were evaluated. In hypertensive hypercholesterolemic animals, repeated administration of simvastatin slightly but significantly decreased the systolic blood pressure, enhanced its progressive reductions induced by repeated administration ...
Grande María T - - 2011
Gender differences in the incidence and severity of hypertension have suggested the involvement of a sex-dependent mechanism. Transgenic (Tg) mice overexpressing kidney androgen-regulated protein (KAP) specifically in kidney showed hypertension associated with oxidative stress. Reactive oxygen species (ROS) are strongly implicated in the pathological signaling leading to hypertension in a ...
Kim Kee-Bum - - 2011
The increase in hydrogen back pressure unexpectedly enhances the overall dehydrogenation reaction rate of the 4LiBH(4) + YH(3) composite significantly. Also, argon back pressure has a similar influence on the composite. Gas back pressure seems to enhance the dehydrogenation reaction by kinetically suppressing the formation of the diborane by-product.
Salcido Richard - - 2011
PURPOSE:: To enhance the learner's competence with information about heel pressure ulcers. TARGET AUDIENCE:: This continuing education activity is intended for physicians and nurses with an interest in skin and wound care. OBJECTIVES:: After participating in this educational activity, the participant should be better able to: ABSTRACT: The heel is ...
Fedorchenko A V - - 2011
The magnetic susceptibility χ of FeTe(x) compounds ([Formula: see text]) was studied under hydrostatic pressure up to 2 kbar at fixed temperatures of 55, 78 and 300 K. Measurements were taken both for polycrystalline and single crystalline samples. At ambient pressure, with decreasing temperature a drastic drop in χ(T) was confirmed at ...
Meighan Michelle M - - 2011
Electrokinetic supercharging (EKS) combines field-amplified sample injection with transient isotachophoresis (tITP) to create a powerful on-line preconcentration technique for capillary electrophoresis. In this work, EKS is enhanced with a positive pressure (pressure-assisted EKS, or PA-EKS) during injection to improve stacking of non-steroidal anti-inflammatory drugs (NSAIDs). Several parameters, including buffer composition ...
Chuang Tung-Yueh - - 2011
Resistin and endothelin-1 (ET-1) are upregulated in people with type II diabetes mellitus, central obesity, and hypertension. ET-1 signaling is involved in Ca(2+) -contraction coupling and related to blood pressure regulation. The aim of this study is to investigate the role of resistin on ET-1-increased blood pressure and Ca(2+) signaling. ...
Gupta Somesh - - 2011
The authors have indicated no significant interest with commercial supporters.
Knier Benjamin - - 2011
BACKGROUND: The plasminogen-plasmin system affects tissue fibrosis, presumably by interacting with metalloproteinases (MMPs) and macrophage recruitment. This study tests the influence of plasminogen activator inhibitor-1 (PAI-1) and tissue-type plasminogen activator (tPa) on angiotensin II-mediated hypertensive kidney and heart injury. METHOD: Hypertension was induced by continuous angiotensin II (Ang II) infusion ...
Escobar André - - 2011
To evaluate the cardiorespiratory changes induced by isoflurane (ISO) anesthesia in the crested caracara (Caracara plancus), eight crested caracaras that weighed 1.0 kg (range 0.9-1.1 kg) were the subjects for the study. The birds were anesthetized by face mask with ISO for brachial artery catheterization. After recovery, anesthesia was re-induced ...
Fahlman Asa - - 2011
Physiologic variables during anesthesia with medetomidine-zolazepam-tiletamine were evaluated in 52 free-ranging brown bears (Ursus arctos) darted from a helicopter and in six captive brown bears darted at a zoo. During anesthesia, rectal temperature, respiratory rate, heart rate, and pulse oximetry derived hemoglobin oxygen saturation were recorded. Arterial blood samples were ...
Zhang Min - - 2011
The effects of elevated hydrostatic pressure on four representative proteins, lysozyme, human serum albumin, ubiquitin and RNase A, were investigated by using Fourier transform infrared (FTIR) spectroscopy, by principal component analysis (PCA) and by moving-window two-dimensional (MW2D) correlation analysis. In addition, we revealed the pressure-induced changes of secondary structure elements ...
Stamer W Daniel - - 2011
Pathology in the primary drainage pathway for aqueous humor in the eye is responsible for ocular hypertension, the only treatable risk factor in patients with glaucoma. Unfortunately, the mechanisms that regulate pressure-dependent drainage of aqueous humor and thus intraocular pressure (IOP) are unknown. To better understand one possible underlying molecular ...
Santos Paulo Caleb Júnior de Lima - - 2011
The impact of increased central arterial stiffness as a predictor of morbidity and mortality, independently of other cardiovascular (CV) risk factors, has been established. The main aim of the present work was to investigate the association of ethnicity on arterial stiffness in different ethnic groups from the Brazilian population. A ...
Bangalore Sripal - - 2010
Aggressive blood pressure (BP) control has been advocated in patients with acute coronary syndrome, but few data exist in this population relative to cardiovascular outcomes. We evaluated 4162 patients enrolled in the PRavastatin Or atorVastatin Evaluation and Infection Therapy-Thrombolysis In Myocardial Infarction (PROVE IT-TIMI) 22 trial (acute coronary syndrome patients ...
Udy Andrew - - 2010
Hypertonic saline and/or norepinephrine infusion are routinely used to achieve a desired cerebral perfusion pressure (CPP) in the management of traumatic brain injury (TBI). We hypothesized that creatinine clearances (CrCls) would be significantly augmented in this setting. This was an observational cohort study in TBI patients older than 16 years ...
Lamina Sikiru - - 2010
The purpose of the present study was to determine and compare the effect of interval and continuous training programs in the management of hypertension. Three hundred fifty-seven male patients with essential hypertension were age matched and grouped into interval, continuous, and control groups. The interval (n=140; 58.90±7.35 years) and continuous ...
Aronow Wilbert S - - 2010
Double-blind, randomized, placebo-controlled studies have documented that antihypertensive drug therapy decreases cardiovascular events in older persons. In the Hypertension in the Very Elderly Trial, patients aged 80 years and older treated with antihypertensive drug therapy had at 1.8-year follow-up, a 30% insignificant decrease in fatal or nonfatal stroke, a 39% ...
de Salles Belmiro Freitas - - 2010
The purpose of this study was to compare the postexercise hypotensive response after different rest intervals between sets (1 and 2 minutes) in normotense older men. Seventeen older men (67.6 ± 2.2 years) with at least 1 year of strength training experience participated. After determination of 10 repetition maximum (10RM) ...
Scheffers Ingrid J M - - 2010
This study assessed the safety and efficacy of a novel implantable device therapy in resistant hypertension patients. Despite the availability of potent antihypertensive drugs, a substantial proportion of patients remain hypertensive. A new implantable device (Rheos system, CVRx, Inc., Minneapolis, Minnesota) that activates the carotid baroreflex may help these patients. ...
Edwards Meghan - - 2010
Hypotension, defined as systolic blood pressure less than 90 mm Hg, is recognized as a sign of hemorrhagic shock and is a validated prognostic indicator. The definition of hypotension, particularly in the elderly population, deserves attention. We hypothesized that the systolic blood pressure associated with increased mortality resulting from hemorrhagic ...
Teixeira A A - - 2011
Among hypertensive patients, cardiovascular disease morbidity is common, even in those who are adequately treated. New pharmacological strategies to mitigate the burden of arterial hypertension are needed. This 12-month, randomized, double-blind placebo-controlled study investigated the effect of statin (fluvastatin) treatment on ambulatory blood pressure (ABP), exercise blood pressure (EBP), myocardial ...
Vijayaraghavan Maya - - 2010
To determine prevalence of blood pressure control, hypertension, hypertension awareness, and antihypertensive treatment among adults (> 18 years old) with diabetes living in the border region between the United States of America and Mexico, and to explore variation in those variables between all adults on the Mexican side of the ...
Camões M - - 2010
Background/Objectives:To evaluate longitudinally the role of physical activity (PA) (type and intensity) and diet (measured using DASH score, nutrients and food intake) in hypertension incidence.Subjects/Methods:As part of the EPIPorto study, 549 participants (40 years), resident in Porto, Portugal, at risk of developing hypertension, were evaluated. Blood pressure (BP) measurements were ...
Li Wen-Wen - - 2010
This paper is a report of a study of the extent to which demographic characteristics, medication-related factors, hypertension-related knowledge and medication adherence predict systolic and diastolic blood pressure. Little is known about predictors of hypertension control in Chinese elders. A longitudinal study with a 3-month follow-up was conducted with 90 ...
Hayen Andrew - - 2010
After starting antihypertensives, blood pressure is monitored for several reasons, including assessment of adherence. We aimed to estimate the accuracy of blood pressure monitoring for detecting early nonadherence. We conducted a secondary analysis of the Perindopril Protection Against Recurrent Stroke Study (PROGRESS), a large randomized trial of blood pressure lowering ...
Wu Sheng Hui - - 2010
OBJECTIVE: Inconsistent findings from epidemiological studies have continued the controversy over the role of oral vitamin D supplementation in reducing blood pressure in normotensive or hypertensive populations. METHODS: We performed a literature search up to December 2009, with no restrictions. Only double-blind randomized controlled trials (RCTs) of oral vitamin D ...
DeVore Adam D - - 2010
Factors influencing hypertension (HTN) control in the United States are not well understood. The authors utilized a newly designed survey instrument to interview patients presenting to a diverse, general cardiology practice at a tertiary care center in order to identify factors associated with HTN control. The study was completed in ...
Grassi Guido - - 2010
This paper critically addresses the issue of the "J-curve" paradox--the finding described in studies performed about 30 years ago indicating that treatment-induced systolic blood pressure values below 120 or 125 mm Hg and diastolic blood pressure values below 75 mm Hg are characterized by an increase, rather than a reduction, ...
Oberdorfer Bernd - - 2010
A maximum excess volume ΔV/V ≈ 1.9 × 10(-3) in ultrafine-grained Fe prepared by high-pressure torsion is determined by measurements of the irreversible length change upon annealing employing a high-resolution differential dilatometer. Since dislocations and equilibrium-type grain boundaries cannot fully account for the observed released excess volume, the present study yields evidence for a ...
Denardo Scott J - - 2010
Our understanding of the growing population of very old patients (aged >or=80 years) with coronary artery disease and hypertension is limited, particularly the relationship between blood pressure and adverse outcomes. This was a secondary analysis of the INternational VErapamil SR-Trandolapril STudy (INVEST), which involved 22,576 clinically stable hypertensive coronary artery ...
Smith Stephen W - - 2011
The impedance threshold device (ITD-7) augments the vacuum created in the thorax with each inspiration, thereby enhancing blood flow from the extrathoracic venous systems into the heart. To the best of our knowledge, the ITD-7 has not previously been investigated in hypotensive patients in the emergency department (ED) or the ...
Bell Katy J L - - 2010
Most clinicians monitor blood pressure to estimate a patient's response to blood pressure-lowering therapy. However, the apparent change may not actually reflect the effect of the treatment, because a person's blood pressure varies considerably even without the administration of drug therapy. We estimated random background within-person variation, apparent between-person variation, ...
McManus Richard J RJ Primary Care Clinical Sciences, University of Birmingham and National Institute for Health Research (NIHR) National School for Primary Care Research, Birmingham, UK. - - 2010
Control of blood pressure is a key component of cardiovascular disease prevention, but is difficult to achieve and until recently has been the sole preserve of health professionals. This study assessed whether self-management by people with poorly controlled hypertension resulted in better blood pressure control compared with usual care. This ...
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