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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
ABSTRACT. 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 ...
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 ...
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 - - 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 - - 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 ...
Sejdić Ervin E Department of Electrical and Computer Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, USA. - - 2013
Functional transcrannial Doppler (fTCD) is used for monitoring the hemodynamics characteristics of major cerebral arteries. Its resting-state characteristics are known only when considering the maximal velocity corresponding to the highest Doppler shift (so called the envelope signals). Significantly more information about the resting-state fTCD can be gained when considering the ...
Nolan John P JP La Jolla Bioengineering Institute, San Diego, California, - - 2013
Interest in measuring the complete fluorescence spectra of individual cells in flow can be traced to the earliest days of flow cytometry. Recent advances in detectors, optics, and computation have made it possible to make full spectral measurements in the sub-millisecond time frame in which flow cytometry measurements typically occur. ...
Moretti Davide V DV Alzheimer Unit, IRCCS San Giovanni di Dio Fatebenefratelli Brescia, - - 2013
Background: Several biomarkers have been proposed for detecting Alzheimer's disease (AD) in its earliest stages, that is, in the predementia stage. In an attempt to find noninvasive biomarkers, researchers have investigated the feasibility of neuroimaging tools, such as MRI, SPECT as well as neurophysiological measurements using EEG. Moreover, the increase ...
Nolan John P JP La Jolla Bioengineering Institute, San Diego, California, USA. - - 2013
There is a long standing interest in measuring complete emission spectra from individual cells in flow cytometry. We have developed flow cytometry instruments and analysis approaches to enable this to be done routinely and robustly. Our spectral flow cytometers use a holographic grating to disperse light from single cells onto ...
Babski Danielle M - - 2012
To establish a standard protocol for analysis of canine whole blood and generate reference intervals for healthy dogs using the Sonoclot analyzer, and to compare Sonoclot values to standard and viscoelastic coagulation tests. Prospective study. Veterinary University research facility and teaching hospital. Twelve healthy random source dogs and 52 healthy ...
Connes Philippe - - 2013
Sickle cell disease is an inherited hemoglobinopathy caused by a single amino acid substitution in the β chain of hemoglobin that causes the hemoglobin to polymerize in the deoxy state. The resulting rigid, sickle-shaped red cells obstruct blood flow causing hemolytic anemia, tissue damage, and premature death. Hemolysis is continual. ...
Hoffmann Ulrike U Neurovascular Research Laboratory, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, - - 2013
Spreading depression of Leão is an intense spreading depolarization (SD) wave associated with massive transmembrane ionic, water, and neurotransmitter shifts. Spreading depolarization underlies migraine aura, and occurs in brain injury, making it a potential therapeutic target. While susceptibility to SD can be modulated pharmacologically, much less is known about modulation ...
Meredith Anna - - 2012
A retrospective study of blood samples from 95 osprey (Pandion haliaetus) nestlings from Scotland and England, collected opportunistically over a 10-yr period, was performed to determine hematologic and plasma biochemistry reference intervals. The age of the sampled nestlings was estimated to be between 4 and 8 wk. Ninety-five percent reference ...
Smith Barbara S - - 2012
The constant exposure of implantable biomaterials such as titanium and titanium alloys to blood-introducesserious and ongoing concerns regarding poor blood-material interactions. To date, all blood-contacting materials have been shown to initiate immunological events in the form of inflammation, thrombosis, fibrosis and infection; potentially leading to complete implant failure. Material surfaces ...
Simsek F G - - 2012
Impedance spectroscopy of blood with and without anticoagulants (Acid Citrate Dextrose (ACD), Ethylene Diamine Tetra-acetic Acid (EDTA) and Lithium Heparin (LH)), taken from healthy donors, ages 24-33, are performed in the frequency range 100 kHz-1MHz, using the two electrode impedance measurement method. High frequency data are used in fitting the ...
Bryan Thomas - - 2012
C-reactive protein (CRP) is an acute phase protein whose levels are increased in many disorders. There exists, in particular, a great deal of interest in the correlation between blood serum levels and the severity of risk for cardiovascular disease. A sensitive, label-free, non-amplified and reusable electrochemical impedimetric biosensor for the ...
Devi Arpana Arthi - - 2012
The objectives of this study were to determine the direction and pattern of flow of irrigating solutions inside simulated root canals with different irrigation needles; and to determine whether different needle designs increase the likelihood of irrigating solution passing through the apical foramen. Two types of needles were compared: a ...
Li Zhongjian - - 2012
We report a laminar flow-based microfluidic bioelectrochemical system (BES) that was fabricated by using polydimethyl siloxane (PDMS) channels and gold electrodes. The microfluidic BES was operated as a potentiostatically controlled two-electrode system. A pure culture of Geobacter sulfurreducens strain PCA, which is a model electrode-respiring bacterium, was grown in the ...
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