keyword
MENU ▼
Read by QxMD icon Read
search

Blood oxygenator

keyword
https://www.readbyqxmd.com/read/27926976/are-cytokines-useful-biomarkers-to-determine-disease-severity-in-neonates-with-congenital-diaphragmatic-hernia
#1
Thomas Schaible, Janine Reineke, Ludwig Gortner, Dominik Monz, Regine Schaffelder, Erol Tutdibi
Background This study investigates plasma cytokine levels in neonates with the more common left-sided congenital diaphragmatic hernia (CDH) and correlates them with severity of disease indicated by position of the liver. An intrathoracic part of liver is associated with higher need for extracorporeal membrane oxygenation (ECMO) and higher risk for chronic lung disease (CLD). Methods A total of 28 newborns with CDH were subdivided by their liver position in partially intrathoracic (n = 16) and only abdominal (n = 12) position...
December 7, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27925468/the-prediction-of-radiofrequency-ablation-zone-volume-using-vascular-indices-of-3-dimensional-volumetric-color-doppler-ultrasound-in-an-in-vitro-blood-perfused-bovine-liver-model
#2
Samuel Chang, Anthony C Lanctot, Martin D McCarter, Katherine M Roberts, Deborah H Glueck, Gerald D Dodd
OBJECTIVE: To determine the most reliable predictor of radiofrequency (RF) ablation zone volume among 3D volumetric color Doppler vascular indices in in-vitro blood-perfused bovine liver model. METHODS: 3D color Doppler volume data of the local hepatic parenchyma were acquired from 37 areas of 13 bovine livers connected to in-vitro oxygenated blood perfusion system. Doppler vascular indices of vascularization index (VI), flow index (FI), and vascularization-flow index (VFI) were obtained from the volume data using a 3D volume analysis software...
December 7, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27925247/does-flexible-arterial-tubing-retain-more-hemodynamic-energy-during-pediatric-pulsatile-extracorporeal-life-support
#3
Shigang Wang, Allen R Kunselman, Akif Ündar
The objective of this study was to evaluate the hemodynamic performance and energy transmission of flexible arterial tubing as the arterial line in a simulated pediatric pulsatile extracorporeal life support (ECLS) system. The ECLS circuit consisted of a Medos Deltastream DP3 diagonal pump head, Medos Hilite 2400 LT oxygenator, Biomedicus arterial/venous cannula (10 Fr/14 Fr), 3 feet of polyvinyl chloride (PVC) arterial tubing or latex rubber arterial tubing, primed with lactated Ringer's solution and packed red blood cells (hematocrit 40%)...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27925145/the-oldest-old-in-the-emergency-department-impact-of-renal-function
#4
T Brünnler, M Drey, G Dirrigl, C Weingart, F Rockmann, C Sieber, U Hoffmann
OBJECTIVES: The ageing population implicates an increasing numbers of older adults attending Emergency Departments (ED). We assessed the effect of estimated glomerular filtration rate as a predictor of clinical outcomes in oldest-old patients ≥ 85 years attending the ED in an university teaching hospital. DESIGN: Within three years, 81831 patient contacts were made in our ED. 7799 (9.5%) were older than 85 years, in whom we analyzed the impact of renal function on various outcome parameters...
2016: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27924930/new-principle-for-measuring-arterial-blood-oxygenation-enabling-motion-robust-remote-monitoring
#5
Mark van Gastel, Sander Stuijk, Gerard de Haan
Finger-oximeters are ubiquitously used for patient monitoring in hospitals worldwide. Recently, remote measurement of arterial blood oxygenation (SpO2) with a camera has been demonstrated. Both contact and remote measurements, however, require the subject to remain static for accurate SpO2 values. This is due to the use of the common ratio-of-ratios measurement principle that measures the relative pulsatility at different wavelengths. Since the amplitudes are small, they are easily corrupted by motion-induced variations...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924521/effects-of-different-surfactant-administrations-on-cerebral-autoregulation-in-preterm-infants-with-respiratory-distress-syndrome
#6
Xu-Fang Li, Ting-Ting Cheng, Rui-Lian Guan, Hong Liang, Wei-Neng Lu, Jing-Hua Zhang, Mei-Yi Liu, Xin Yu, Jun Liang, Li Sun, Lian Zhang
To treat respiratory distress syndrome, surfactant is currently delivered via less invasive surfactant administration (LISA) or INtubation SURfactant Extubation (INSURE). The aim of this study was to compare the effect of the two delivery methods of surfactant on cerebral autoregulation. Near infrared spectroscopy monitoring was carried out to detect cerebral oxygen saturation (ScO2), and the mean arterial blood pressure (MABP) was simultaneously recorded. Of 44 preterm infants included, the surfactant was administrated to 22 via LISA and 22 via INSURE...
December 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27923389/the-importance-of-albumin-infusion-rate-for-plasma-volume-expansion-following-major-abdominal-surgery-air-study-protocol-for-a-randomised-controlled-trial
#7
Svajunas Statkevicius, Johan Bonnevier, Björn P Bark, Erik Larsson, Carl M Öberg, Päivi Kannisto, Bobby Tingstedt, Peter Bentzer
BACKGROUND: Administration of fluids to restore normovolaemia is one of the most common therapeutic interventions performed peri-operatively and in the critically ill, but no study has evaluated the importance of infusion rate for the plasma volume-expanding effect of a resuscitation fluid. The present study is designed to test the hypothesis that a slow infusion of resuscitation fluid results in better plasma volume expansion than a rapid infusion. METHODS/DESIGN: The study is a single-centre, assessor-blinded, parallel-group, randomised prospective study...
December 7, 2016: Trials
https://www.readbyqxmd.com/read/27922827/gold-nanoparticles-as-scaffolds-for-poor-water-soluble-and-difficult-to-vehiculate-antiparkinson-codrugs
#8
A Di Crescenzo, I Cacciatore, M Petrini, M D'Alessandro, N Petragnani, P Del Boccio, P Di Profio, S Boncompagni, G Spoto, H Turkez, P Ballerini, A Di Stefano, A Fontana
We report the facile and non-covalent preparation of gold nanoparticles (AuNPs) stabilized by an antiparkinson codrug based on lipoic acid (LA). The obtained AuNPs appear stable in both dimethyl sulfoxide and fetal bovine serum and able to load an amount of codrug double the weight of gold. These NPs were demonstrated to be safe and biocompatible towards primary human blood cells and human neuroblastoma cells, one of the most widely used cellular models to study dopaminergic neural cells, therefore are ideal drug carriers for difficult to solubilize molecules...
December 6, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27922551/sphingosine-1-phosphate-s1p-a-potential-biomarker-and-therapeutic-target-for-endothelial-dysfunction-and-sepsis
#9
Martin S Winkler, Axel Nierhaus, Annika Poppe, Gillis Greiwe, Markus Gräler, Guenter Daum
Sepsis is an acute life-threatening multiple organ failure caused by a dysregulated host response to infection. Endothelial dysfunction, particularly barrier disruption leading to increased vascular permeability, edema and insufficient tissue oxygenation is critical to sepsis pathogenesis. Sphingosine-1-phosphate (S1P) is a signaling lipid that regulates important pathophysiological processes including vascular endothelial cell permeability, inflammation and coagulation. It is present at high concentrations in blood and lymph and at very low concentrations in tissues due to the activity of the S1P-degrading enzyme S1P-lyase in tissue cells...
December 2, 2016: Shock
https://www.readbyqxmd.com/read/27921018/comparison-of-the-protective-effects-of-erythropoietin-and-melatonin-on-renal-ischemia-reperfusion-injury
#10
Shokofeh Banaei, Nasser Ahmadiasl, Alireza Alihemmati
BACKGROUND: Renal ischemia-reperfusion (IR) contributes to the development of acute renal failure (ARF). Oxygen free radicals are considered to be the principal components involved in the pathophysiological tissue alterations observed during renal IR. OBJECTIVES: In this study, we compared the effects of melatonin (MEL) and erythropoietin (EPO), both known antioxidant and anti-inflammatory agents, on IR-induced renal injury in rats. MATERIALS AND METHODS: Wistar albino rats were unilaterally nephrectomized and then subjected to 45 minutes of renal pedicle occlusion followed by 24 hours of reperfusion...
July 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27919784/a-comparison-study-between-the-saturation-recovery-t1-and-casl-mri-methods-for-quantitative-cbf-imaging
#11
Xiao Wang, Xiao-Hong Zhu, Yi Zhang, Afshin A Divani, Amanda J Murphy, Wei Chen
The saturation-recovery (SR)-T1 MRI method for quantitatively imaging cerebral blood flow (CBF) change (ΔCBF) concurrently with the blood oxygenation level dependence (BOLD) alteration has been recently developed and validated by simultaneous measurement of relative CBF change using laser Doppler flowmetry (LDF) in rats at 9.4T. In this study, ΔCBF induced by mildly transient hypercapnia and measured by the SR-T1 MRI method was rigorously compared with an established perfusion MRI method-continuous arterial spin labeling (CASL) approach in normal and preclinical middle cerebral artery occlusion (MCAo) rat models...
December 2, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27919118/preeclampsia-and-the-risk-of-bronchopulmonary-dysplasia-in-preterm-infants-less-than-32-weeks-gestation
#12
Nancy Soliman, Kathleen Chaput, Belal Alshaikh, Kamran Yusuf
Objective Angiogenesis is essential for normal lung development. The objective of our study was to test the hypothesis that preeclampsia, an antiangiogenic state, is a risk factor for bronchopulmonary dysplasia (BPD). Design Prospective cohort study of infants less than 32 weeks' gestation born to mothers with preeclampsia between January 2007 and June 2010 at a single tertiary care center. Their BPD outcome was compared with infants born to the next two normotensive mothers with a ± 1 week gestational age difference...
December 5, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27918992/investigation-of-the-metabolites-of-the-hif-stabilizer-fg-4592-roxadustat-in-five-different-in-vitro-models-and-in-a-human-doping-control-sample-using-high-resolution-mass-spectrometry
#13
Annelie Hansson, Mario Thevis, Holly Cox, Geoff Miller, Daniel Eichner, Ulf Bondesson, Mikael Hedeland
FG-4592 is a hypoxia-inducible factor (HIF) stabilizer, which can increase the number of red blood cells in the body. It has not been approved by regulatory authorities, but is available for purchase on the Internet. Due to its ability to improve the oxygen transportation mechanism in the body, FG-4592 is of interest for doping control laboratories, but prior to this study, little information about its metabolism was available. In this study, the metabolism of FG-4592 was investigated in a human doping control sample and in five in vitro models: human hepatocytes and liver microsomes, equine liver microsomes and S9 fraction and the fungus Cunninghamella elegans...
November 27, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27918731/effects-of-passiflora-incarnata-and-midazolam-for-control-of-anxiety-in-patients-undergoing-dental-extraction
#14
L-P Dantas, A- de Oliveira-Ribeiro, L-M de Almeida-Souza, F-C Groppo
BACKGROUND: Anxiety symptoms are frequently observed in dental patients, whether they are undergoing simple or more invasive procedures such as surgery. This research aimed to compare the effects of Passiflora incarnata and midazolam for the control of anxiety in patients undergoing mandibular third molar extraction. MATERIAL AND METHODS: Forty volunteers underwent bilateral extraction of their mandibular third molars in a randomized, controlled, double-blind, crossover clinical trial...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27918666/quantification-of-training-and-competition-loads-in-endurance-sports-methods-and-applications
#15
Iñigo Mujika
Training quantification is basic to evaluate an endurance athlete's responses to the training loads, ensure adequate stress/recovery balance and determine the relationship between training and performance. Quantifying both external and internal workload is important, because the external workload does not measure the biological stress imposed by the exercise sessions. Generally used quantification methods include retrospective questionnaires, diaries, direct observation and physiological monitoring, often based on the measurement of oxygen uptake, heart rate and blood lactate concentration...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918563/dickkopf-1-promotes-hematopoietic-regeneration-via-direct-and-niche-mediated-mechanisms
#16
Heather A Himburg, Phuong L Doan, Mamle Quarmyne, Xiao Yan, Joshua Sasine, Liman Zhao, Grace V Hancock, Jenny Kan, Katherine A Pohl, Evelyn Tran, Nelson J Chao, Jeffrey R Harris, John P Chute
The role of osteolineage cells in regulating hematopoietic stem cell (HSC) regeneration following myelosuppression is not well understood. Here we show that deletion of the pro-apoptotic genes Bak and Bax in osterix (Osx, also known as Sp7 transcription factor 7)-expressing cells in mice promotes HSC regeneration and hematopoietic radioprotection following total body irradiation. These mice showed increased bone marrow (BM) levels of the protein dickkopf-1 (Dkk1), which was produced in Osx-expressing BM cells...
December 5, 2016: Nature Medicine
https://www.readbyqxmd.com/read/27918385/neurally-adjusted-ventilatory-assist-in-preterm-infants-with-established-or-evolving-bronchopulmonary-dysplasia-on-high-intensity-mechanical-ventilatory-support-a-single-center-experience
#17
Young Hwa Jung, Han-Suk Kim, Juyoung Lee, Seung Han Shin, Ee-Kyung Kim, Jung-Hwan Choi
OBJECTIVES: The aim of the present study was to report possible improvements in ventilator variables associated with a transition from synchronized intermittent mandatory ventilation to neurally adjusted ventilatory assist in preterm infants with bronchopulmonary dysplasia who required a high level of mechanical ventilatory support in a single center. DESIGN: Retrospective study. SETTING: Neonatal ICU. PATIENTS: Twenty-nine preterm infants with a median gestational age of 25...
December 2016: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/27917590/antichaperone-activity-and-heme-degradation-effect-of-methyl-tert-butyl-ether-mtbe-on-normal-and-diabetic-hemoglobins
#18
Ismaeil Hossein Najdegerami, Parvaneh Maghami, Vahid Sheikh-Hasani, Ghader Hosseinzadeh, Nader Sheibani, Ali A Moosavi-Movahedi
Because of the extensive use of methyl tert-butyl ether (MTBE) as an additive to increase the octane quality of gasoline, the environmental pollution by this compound has increased in recent decades. Environmental release of MTBE may lead to its entry to the blood stream through inhalation or drinking of contaminated water, and its interactions with biological molecules such as proteins. The present study was proposed to comparatively investigate the interactions of MTBE with hemoglobin (Hb) from diabetic and nondiabetic individuals using various spectroscopic methods including UV-visible, fluorescence, chemiluminescence, and circular dichroism...
December 5, 2016: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/27917468/dry-skin-conditions-are-related-to-the-recovery-rate-of-skin-temperature-after-cold-stress-rather-than-to-blood-flow
#19
Yasuko Yoshida-Amano, Tomoko Nomura, Yoshinori Sugiyama, Kayoko Iwata, Yuko Higaki, Masanori Tanahashi
BACKGROUND: Cutaneous blood flow plays an important role in the thermoregulation, oxygen supply, and nutritional support necessary to maintain the skin. However, there is little evidence for a link between blood flow and skin physiology. Therefore, we conducted surveys of healthy volunteers to determine the relationship(s) between dry skin properties and cutaneous vascular function. METHODS: Water content of the stratum corneum, transepidermal water loss, and visual dryness score were investigated as dry skin parameters...
December 4, 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27916603/oxidative-stress-in-sepsis-possible-production-of-free-radicals-through-an-erythrocyte-mediated-positive-feedback-mechanism
#20
Yanaihara Pichemel Amorim de Oliveira, Lain Carlos Pontes-de-Carvalho, Ricardo David Couto, Alberto Augusto Noronha-Dutra
BACKGROUND: Sepsis is an illness with a high morbidity for which no effective treatment exists. Its treatment has a high cost because it usually requires an intensive care unit and expensive antibiotics. The present study focus in the production of reactive oxygen species (ROS) in the early stages of sepsis. This study aimed at investigating the production of ROS during the inflammatory response in patients with sepsis. METHODS: ROS production and insoluble myeloperoxidase obtained from fresh whole blood were measured by photon counting chemiluminescence in the blood of 18 septic patients and 12 healthy individuals...
December 1, 2016: Brazilian Journal of Infectious Diseases
keyword
keyword
48592
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"