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Schneider Sven Oliver SO Department for Anesthesiology, Critical Care Medicine and Pain Therapy, Saarland University Hospital, Homburg, - - 2014
Intraoperative blood salvage and processing it with commercially available devices is a widespread standard procedure to reduce allogeneic blood transfusion in patients undergoing major orthopedic surgery. The aim of this study was to investigate the impact of such processed blood on the immune system by measuring pro- and anti-inflammatory cytokines. ...
Endo Shunsuke S Department of General Thoracic Surgery, Jichi Medical University, Tochigi, - - 2014
As in Part I, to elucidate the role of fluid mechanical factors in the localized genesis and development of atherosclerotic lesions in man, here in the abdominal aorta.METHODS: Flow patterns and preferred sites of atherosclerotic lesions in the aorta were studied in detail using the same isolated transparent aortic trees ...
Goharian Iman I Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Palm Beach Gardens, - - 2014
The choroid is part of the uveal tract and is a heavily vascularized bed that also contains connective tissue and melanin pigment. Given the role of the choroidal vasculature in the blood supply of the anterior laminar and prelaminar regions of the optic nerve head, the peripapillary choroid might be ...
Tankanag Arina V AV Institute of Cell Biophysics, Russian Acad. Sci., Institutskaya st. 3, Pushchino, Moscow region 142290, - - 2014
The wavelet phase coherence of oscillations in the peripheral blood flow of contralateral skin sites was studied in 20 healthy subjects. Skin perfusion was registered simultaneously on similar regions of the outer sides of the right and left forearms by the laser Doppler flowmetry technique. To estimate the reliability of ...
Tong Yunjie Y Brain Imaging Center, McLean Hospital, Belmont, Massachusetts; Department of Psychiatry, Harvard University Medical School, Boston, - - 2014
BOLD functional MRI (fMRI) data are dominated by low frequency signals, many of them of unclear origin. We have recently shown that some portions of the low frequency oscillations found in BOLD fMRI are systemic signals closely related to the blood circulation (Tong et al. [2013]: NeuroImage 76:202-215). They are ...
Santos E U D EU Laboratório de Estudos Moleculares e Terapia Experimental (LEMTE), Department of Genetics, Federal University of Pernambuco, Pernambuco, - - 2014
Bovine papillomavirus (BPV) is a diverse group of double-stranded DNA oncogenic viruses. BPVs are classically described as epitheliotropic, however, they have been detected in body fluids, such as blood and semen. The presence of BPV in these sites can have implications for the dissemination of BPV. The aim of this ...
Serber Stacy L SL Stacy L. Serber, PhD, RN, is Assistant Professor, School of Nursing, San Francisco State University, California. Brenda Rinsky, RDMS, is President/Technical Director, TCD Solutions, BSR Enterprises, Inc, Santa Clarita, California. Rajesh Kumar, PhD, is Assistant Researcher, Department of Neurobiology, University of California at Los Angeles. Paul M. Macey, PhD, is Associate Dean for Information Technology and Innovations, School of Nursing, University of California at Los Angeles. Gregg C. Fonarow, MD, is Professor, David Geffen School of Medicine, Division of Cardiology, University of California at Los Angeles. Ronald M. Harper, PhD, is Distinguished Professor, Department of Neurobiology, David Geffen School of Medicine, University of California at Los - - 2014
Significant alterations in autonomic nervous system (ANS) function, vasomotor reactivity, and cerebral blood flow may develop from damage to brain ANS regulatory areas in heart failure (HF). This preferentially right-sided injury occurs largely in autonomic structures perfused by the middle cerebral artery. Indications of altered, asymmetrical perfusion raise the potential ...
Svenkeson Daniel - - 2014
Normal blood flow in the brain as a response to pressure fluctuations is commonly referred to as cerebral autoregulation. Linear, non-parametric models of cerebral autoregulation were estimated for 77 human subjects afflicted with brain injury, with mean arterial pressure used as input, and invasively measured regional cerebral blood flow used ...
Lefrère Jean-Jacques JJ Institut National de la Transfusion Sanguine and Paris-Descartes University; Hematology Department, Laboratory of Pysiopathology and Treatment of Hematological Disorders, Imagine Institute, Sorbonne Paris Cité University, Necker Hospital, Paris, - - 2014
Before frequency and age limits were established for blood donations, certain individuals were exceptional in the frequency and the number of blood donations over their life. We call them "superdonors" and describe their common characteristics through some examples. The physiologic characteristics allowing these individuals to give blood several hundred times ...
Onder Ozlem O Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania, - - 2014
Identifying the species on which hematophagous arthropods feed is crucial for studying the factors that affect pathogen distributions and that can aid public health. Here we describe a protocol to identify the species a parasitic arthropod has previously fed upon by identifying the source of the remnants of a previous ...
McMichael Maureen A MA Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Illinois, Urbana, IL, - - 2014
Previous studies have reported a strong correlation between indicators of red cell mass (RCM) and thromboelastometry results (TEM) in several species, specifically an association of apparent hypercoagulability with decreased RCM. The objectives of the study were to (1) evaluate the effect of decreased circulating RCM on TEM results in dogs, ...
Peng Fenghua F Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. - - 2014
Estradiol changes associated with the menstrual cycle have a great impact on brain activation. δ frequency mainly appears during normal sleep status or brain injury diseases, including encephalitis and mental confusion. The current case report presents a 51-year-old female with prolonged menstruation and increased menstrual blood volume whose electroencephalogram (EEG) ...
Vicente-Herrero M Teofila MT Grupo de Investigación Medicina del Trabajo (GIMT), Valencia, España. Electronic address: - - 2014
Hearing loss due to noise is considered within the prevention plans of the most common occupational diseases. In addition to evaluation of working conditions, other personal factors increasing the risk of hypoacusis, such as diabetes, should be taken into account. To explore hearing loss in the workplace and its relationship ...
Pierro Michele L ML Tufts University, Department of Biomedical Engineering, 4 Colby Street, Medford, Massachusetts - - 2014
We present a pilot clinical application of coherent hemodynamics spectroscopy (CHS), a technique to investigate cerebral hemodynamics at the microcirculatory level. CHS relies on frequency-resolved measurements of induced cerebral hemodynamic oscillations that are measured with near-infrared spectroscopy (NIRS) and analyzed with a hemodynamic model. We have used cyclic inflation (200 ...
Miao Wang - - 2014
We experimentally demonstrate a highly spectral efficient optical flow control technique for intra data center networks. A bi-directional system is implemented for generating flow control signal by reusing label wavelength and the transmission link within the same WDM channel. Dynamic operation shows high-quality flow control signal with 265ns latency including ...
Kim Kyoungmi K Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, Davis, California, United States of - - 2014
While metabolomics has tremendous potential for diagnostic biomarker and therapeutic target discovery, its utility may be diminished by the variability that occurs due to environmental exposures including diet and the influences of the human circadian rhythm. For successful translation of metabolomics findings into the clinical setting, it is necessary to ...
Vernieri Fabrizio F Neurology Unit, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, Rome 00128, Italy. Electronic address: - - 2014
Neuromodulation techniques, i.e. repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS), can modify cerebral hemodynamics. High frequency rTMS appeared to decrease cerebral vasomotor reactivity (VMR), while there is still poor evidence about the effect of low frequency (LF) rTMS on cerebral blood flow (CBF) and VMR. The ...
Gu Herong H Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, Yanshan University, Qinhuangdao 066004, - - 2014
Microgrid is an effective way to integrate the distributed energy resources into the utility networks. One of the most important issues is the power flow control of grid-connected voltage-source inverter in microgrid. In this paper, the small-signal model of the power flow control for the grid-connected inverter is established, from ...
Benahadi A A Centre National de Transfusion Sanguine, Rue Lamfadal Charkaoui, Madinat Al Irfane, BP 180, Rabat, Morocco ; Laboratoire de Génétique et de Biométrie, Faculté des Sciences, University Ibn Tofaïl, Kenitra, - - 2014
The aim of this research is to search for the distribution of blood groups in all the regions of Morocco. This study, done for the first time, aimed to provide the frequency of the Rhesus system and Kell (K) in more than 55000 blood donors from nine different regions around ...
Rickards Caroline A CA Department of Integrative Physiology, Cardiovascular Research Institute, University of North Texas Health Science Center Fort Worth, TX, - - 2014
Variability in arterial pressure and cerebral blood flow has traditionally been interpreted as a marker of cardiovascular decompensation, and has been associated with negative clinical outcomes across varying time scales, from impending orthostatic syncope to an increased risk of stroke. Emerging evidence, however, suggests that increased hemodynamic variability may, in ...
Medow Marvin S MS Departments of Pediatrics, The Center for Hypotension, New York Medical College Valhalla, NY, USA ; Departments of Physiology, New York Medical College Valhalla, NY, - - 2014
Decreased upright cerebral blood flow (CBF) with hyperpnea and hypocapnia is seen in a minority of patients with postural tachycardia syndrome (POTS). More often, CBF is not decreased despite upright neurocognitive dysfunction. This may result from time-dependent changes in CBF. We hypothesized that increased oscillations in CBF occurs in POTS ...
Liangjie Mao M State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Sichuan, Chengdu, - - 2014
A considerable number of studies for VIV under the uniform flow have been performed. However, research on VIV under shear flow is scarce. An experiment for VIV under the shear flow with the same shear parameter at the two different Reynolds numbers was conducted in a deep-water offshore basin. Various ...
Perry Blake G BG School of Sport and Exercise, Massey University Palmerston North, New - - 2014
The Valsalva maneuver (VM) produces large and abrupt changes in mean arterial pressure (MAP) that challenge cerebral blood flow and oxygenation. We examined the effect of VM intensity on middle cerebral artery blood velocity (MCAv) and cortical oxygenation responses during (phases I-III) and following (phase IV) a VM. Healthy participants ...
Broxterman R M RM Department of Kinesiology, Kansas State University, Manhattan, KS, USA; Department of Anatomy and Physiology, Kansas State University, Manhattan, KS, USA. Electronic address: - - 2013
The highest sustainable rate of aerobic metabolism [critical power (CP)] and the finite amount of work that can be performed above CP (W') were determined under two muscle contraction duty cycles. Eight men completed at least three constant-power handgrip tests to exhaustion to determine CP and W' for 50% and ...
Koehn Stefan S Department of Health Sciences, Liverpool Hope University, Liverpool, United - - 2013
The main purpose of the study was to examine crucial parts of Vealey's (2001) integrated framework hypothesizing that sport confidence is a mediating variable between sources of sport confidence (including achievement, self-regulation, and social climate) and athletes' affect in competition. The sample consisted of 386 athletes, who completed the Sources ...
Lee Jung Chan - - 2013
Extracorporeal cardiopulmonary resuscitation (ECPR) refers to the application of extracorporeal blood circulation with oxygenation as a resuscitation tool. The objective of this study is to observe the frequency component changes in the electrocardiogram (ECG) by ECPR during prolonged ventricular fibrillation (VF). Six swine were prepared as a VF model. Extracorporeal ...
Paltiel Harriet J - - 2013
To assess correlation between multi-planar, dynamic contrast-enhanced ultrasound (US) blood flow measurements and radiolabeled microsphere blood flow measurements, five groups of six rabbits underwent unilateral testicular torsion of 0°, 180°, 360°, 540° or 720°. Five US measurements per testis (three transverse/two longitudinal) were obtained pre-operatively and immediately and 4 and ...
Waghmare Alka S AS Department of Periodontics, A. C. P. M Dental College, Dhule, Maharashtra, - - 2013
Bacteremia frequently occurs after treatment procedures such as extractions, scaling, root planing, periodontal surgery. There is currently significant interest in the possibility that bacteremia with oral bacteria may play role in pathogenesis of atherosclerosis. There are well-conducted studies that have determined the frequency of passage of periodontal microorganisms to the ...
Smirl Jonathan D - - 2013
We investigated if dynamic cerebral pressure-flow relationships in lowlanders are altered at high altitude (HA), differ in HA natives and after return to sea level (SL). Lowlanders were tested at SL (n=16), arrival to 5,050 m, after 2-week acclimatization (with and without end-tidal PO2 normalization), and upon SL return. High-altitude natives ...
Elting J W - - 2013
Dynamic cerebral autoregulation (dCA) estimates require mean arterial blood pressure (MABP) fluctuations of sufficient amplitude. Current methods to induce fluctuations are not easily implemented or require patient cooperation. In search of an alternative method, we evaluated if MABP fluctuations could be increased by passive cyclic leg raising (LR) and tested ...
Huang Hanrui - - 2013
Trans-cranial Doppler (TCD) recordings are used to monitor cerebral blood flow in the main cerebral arteries. The resting state is usually characterized by the mean velocity or the maximum Doppler shift frequency (an envelope signal) by insonating the middle cerebral arteries. In this study, we characterized cerebral blood flow in ...
Hsiu Hsin - - 2013
Women with polycystic-ovary syndrome (PCOS) may present abnormal hemodynamic alterations and thus may develop vascular damage. The present study performed laser-Doppler-flowmetry (LDF) measurements on the skin surface around the leg to verify if beat-to-beat-waveform and spectral analysis can help to discriminate the microcirculatory-blood-flow (MBF) characteristics between PCOS and healthy subjects. ...
Qiu Yu-Tong - - 2013
Olfaction plays an important role in the host-seeking behavior of the malaria mosquito Anopheles gambiae. After a complete blood meal, female mosquitoes will not engage in host-seeking behavior until oviposition has occurred. We investigated if peripheral olfactory sensitivity changed after a blood meal by recording electroantennograms (EAGs) of female mosquitoes ...
Marinov Iuri - - 2013
Abstract Background: Evaluation of paroxysmal nocturnal hemoglobinuria (PNH) clones by flow cytometry (FCM) is not standardized and is associated with consistent inter-laboratory variability. Methods: In order to rule out the influence of particular approach in generating final results, we analyzed the performance characteristics of individual consensus strategies for small to ...
Hsiu Hsin - - 2013
Beat-to-beat cardiovascular variability analysis provides important information on the circulatory regulatory activities. Changes in the arterial pulse transmission or the opening condition of arteriolar openings might change the fluctuation pattern of the MBF supply, and thus change the complexity property therein. We performed complexity analysis of beat-to-beat laser Doppler (LDF) ...
Malhotra S - - 2013
Recent studies have suggested a role of the cation channel TRPM4 in mediating neurodegeneration in experimental autoimmune encephalomyelitis and multiple sclerosis (MS). We aimed to extrapolate central nervous system findings to the blood compartment by determining TRPM4 expression in peripheral blood mononuclear cells from 12 healthy controls (HC) and 64 ...
Khan Shaukat Ali SA New York University School of Medicine, Cancer Institute, Smilow Research Building 1303, 522 First Avenue, New York, NY 10016, - - 2013
The aim of the study is to determine the frequency and functionality of blood conventional dendritic cells (cDCs) in relation to disease activity in systemic lupus erythematosus. Blood cDCs were enumerated for 34 SLE patients, defined as "active" (SLEDAI ≥ 4) or "inactive" (SLEDAI < 4), 26 RA subjects and ...
Järvelä Merja - - 2013
OBJECTIVES: To investigate cardiorespiratory and inflammatory responses in male workers following exposure to welding fumes and airborne particles in actual workplace conditions. MATERIALS AND METHODS: We measured blood leukocytes and their differential counts, platelet count, hemoglobin, sensitive C-reactive protein, fibrinogen, E-selectin, IL-(interleukin)1β, IL-6, IL-8, tumor necrosis factor alpha (TNF-α) and ...
Vinik Aaron I - - 2013
In this review of thermoregulatory function in health and disease, we review the basic mechanisms controlling skin blood flow of the hairy and glabrous skin and illustrate the major differences in blood flow to glabrous skin, which is, in essence, sympathetically mediated, while hairy skin is dependent upon neuropeptidergic signals, ...
Bashir S - - 2013
BACKGROUND: Proposed changes to ISO 1135-4 will require that blood transfusion administration sets are demonstrated by the manufacturers to be suitable for the range of cellular and plasma blood components for which they are designated. AIMS: To design a test protocol to asses the depletion of the blood components by ...
Voss Andreas - - 2013
The objective of this study was to investigate the impairment of microcirculation in schizophrenic patients by means of spectral analysis of blood flow signals and to determine if microcirculation is unequally altered in different tissue depths. Furthermore, the impact of gender and age on the spectral parameters of the Laser ...
Ortega-Gutierrez Santiago - - 2013
BACKGROUND: Cerebral autoregulation (CA) enables the brain to maintain stable cerebral blood flow (CBF). CA can be assessed noninvasively by determining correlations between CBF velocity (CBFV) and spontaneous changes in blood pressure. Postrecording signal analysis methods have included both frequency- and time-domain methods. However, the test-retest reliability, cross-validation, and determination ...
Gonçalves Ivo B IB DEEI/FCT, Universidade do Algarve, Campus de Gambelas 8005-139 Faro, - - 2013
Aiming reliable detection and localization of cerebral blood flow and emboli, embolic signals were added to simulated middle cerebral artery Doppler signals and analysed. Short-time Fourier transform (STFT) and continuous wavelet transform (CWT) were used in the evaluation. The following parameters were used in this study: the powers of the ...
Henriksen Otto M OM Functional Imaging Unit, Department of Diagnostics, Glostrup University Hospital, Glostrup, Denmark. - - 2013
Measurements of cerebral blood flow (CBF) show large variability among healthy subjects. The aim of the present study was to investigate the relative effect of established factors influencing CBF on the variability of resting CBF. We retrospectively analyzed spontaneous variability in 430 CBF measurements acquired in 152 healthy, young subjects ...
Ricci Stefano - - 2013
In multigate spectral Doppler (MSD) analysis, hundreds of small sample volumes (SVs) aligned along a pulse wave-line can be simultaneously investigated. The so-called spectral profile, reporting the scatterers¿ velocity distribution in a vessel, is obtained by estimating the frequency content of the echoes detected from each SV. The preferred frequency ...
Tzeng Yu-Chieh - - 2013
The relationships between blood pressure variability (BPV) and cerebral blood flow variability (CFV) across individuals in the presence of intact and blunted cerebrovascular control are poorly understood. This study sought to characterize the interindividual associations between spontaneous BPV and CFV under conditions of normal and blunted (calcium channel blockade; CCB) ...
Eley Karen A - - 2013
Background: The use of pressor drugs after microsurgical free tissue transfer remains controversial because of potential vasoconstrictor effects on the free flap. Noninvasive monitoring of free flaps with laser Doppler flowmetry may provide further information regarding the local regulation of blood flow in the flap tissues during pressor infusions. This ...
Mukhtiar Muhammad - - 2013
This piece of research work present the toxicological impact of varied concentrations of Palladium Nitrate [Pd (NO3)2] by changing the chemical status of glutathione and the way how glutathione plays its role in detoxification and conjugation processes of [Pd (NO(3))(2))] in whole blood components (plasma and Cytosolic fraction). The impact ...
Gaggioli Andrea - - 2013
Flow is an optimal experience characterized by the perception of high challenges and high skills, positive affect, complete absorption in the activity carried out and intrinsic motivation. Although much research has examined the psychological features of flow, little is known about its biological underpinnings. The present study aimed at contributing ...
Goadsby Peter J - - 2013
The classic view of cerebrovascular physiology has been that blood flow and cerebral metabolism are tightly coupled under the influence of substances, such as H(+), adenosine, nitric oxide, and K(+), which ensure a rapid and matched supply of blood. In part driven by the use of cerebral blood flow measurements ...
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