keyword
MENU ▼
Read by QxMD icon Read
search

Faint

keyword
https://www.readbyqxmd.com/read/28236458/comparison-of-specific-fainting-characteristics-between-youth-with-tilt-induced-psychogenic-nonsyncopal-collapse-versus-reflex-syncope
#1
Geoffrey L Heyer, Rebecca A Harvey, Monica P Islam
Little is known about the predictive features of psychogenic nonsyncopal collapse (PNSC). The aim of the present study was to compare the self-reported fainting characteristics between young patients who were ultimately diagnosed with PNSC with those ultimately diagnosed with neurally mediated syncope and to determine which features were predictive of either diagnosis. A prospective study was conducted of sequential patients referred for fainting. All study data were obtained before testing or diagnosis. Several fainting characteristics were compared between cohorts including numbers of lifetime fainting episodes, fainting frequency the week before evaluation, fainting duration, numbers of fainting spells in a single day, presence of presyncope, types of prodromal symptoms, tearfulness with fainting, and the numbers of emergency department visits and hospital admission for fainting...
February 2, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28227856/multiquadric-spline-based-interactive-segmentation-of-vascular-networks
#2
Sachin Meena, V B Surya Prasath, Yasmin M Kassim, Richard J Maude, Olga V Glinskii, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Sachin Meena, V B Surya Prasath, Yasmin M Kassim, Richard J Maude, Olga V Glinskii, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Virginia H Huxley, Yasmin M Kassim, Sachin Meena, Kannappan Palaniappan, Vladislav V Glinsky, Olga V Glinskii, Richard J Maude, V B Surya Prasath
Commonly used drawing tools for interactive image segmentation and labeling include active contours or boundaries, scribbles, rectangles and other shapes. Thin vessel shapes in images of vascular networks are difficult to segment using automatic or interactive methods. This paper introduces the novel use of a sparse set of user-defined seed points (supervised labels) for precisely, quickly and robustly segmenting complex biomedical images. A multiquadric spline-based binary classifier is proposed as a unique approach for interactive segmentation using as features color values and the location of seed points...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227125/random-forests-for-dura-mater-microvasculature-segmentation-using-epifluorescence-images
#3
Yasmin M Kassim, V B Surya Prasath, Rengarajan Pelapur, Olga V Glinskii, Richard J Maude, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Yasmin M Kassim, V B Surya Prasath, Rengarajan Pelapur, Olga V Glinskii, Richard J Maude, Vladislav V Glinsky, Virginia H Huxley, Kannappan Palaniappan, Virginia H Huxley, Yasmin M Kassim, Rengarajan Pelapur, Kannappan Palaniappan, Vladislav V Glinsky, Olga V Glinskii, Richard J Maude, V B Surya Prasath
Automatic segmentation of microvascular structures is a critical step in quantitatively characterizing vessel remodeling and other physiological changes in the dura mater or other tissues. We developed a supervised random forest (RF) classifier for segmenting thin vessel structures using multiscale features based on Hessian, oriented second derivatives, Laplacian of Gaussian and line features. The latter multiscale line detector feature helps in detecting and connecting faint vessel structures that would otherwise be missed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223800/comparison-of-the-cellular-transport-mechanism-of-cationic-star-shaped-polymers-and-liposomes-in-hacat-cells
#4
Heng-Cong Luo, Na Li, Li Yan, Kai-Jin Mai, Kan Sun, Wei Wang, Guo-Juan Lao, Chuan Yang, Li-Ming Zhang, Meng Ren
Several biological barriers must be overcome to achieve efficient nonviral gene delivery. These barriers include target cell uptake, lysosomal degradation, and dissociation from the carrier. In this study, we compared the differences in the uptake mechanism of cationic, star-shaped polymer/MMP-9siRNA complexes (β-CD-(D3)7/MMP-9siRNA complexes: polyplexes) and commercial liposome/MMP-9siRNA complexes (Lipofectamine(®) 2000/MMP-9siRNA complexes: liposomes). The uptake pathway and transfection efficiency of the polyplexes and liposomes were determined by fluorescence microscopy, flow cytometry, and reverse transcriptase-polymerase chain reaction...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28203191/airbag-associated-severe-blunt-eye-injury-causes-choroidal-rupture-and-retinal-hemorrhage-a-case-report
#5
Shih Hao Wang, Chen Chee Lim, Yu Ti Teng
A case of choroidal rupture caused by airbag-associated blunt eye trauma and complicated with massive subretinal hemorrhage and vitreous hemorrhage that was successfully treated with intravitreal injection of expansile gas and bevacizumab is presented. A 53-year-old man suffered from loss of vision in his right eye due to blunt eye trauma by a safety airbag after a traffic accident. On initial examination, the patient had no light perception in his right eye. Dilated ophthalmoscopy revealed massive subretinal hemorrhage with macular invasion and faint vitreous hemorrhage...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28196064/mt4-mmp-and-egfr-expression-levels-are-key-biomarkers-for-breast-cancer-patient-response-to-chemotherapy-and-erlotinib
#6
Cassandre Yip, Pierre Foidart, Joan Somja, Alice Truong, Mehdi Lienard, Emilie Feyereisen, Hélène Schroeder, Stéphanie Gofflot, Anne-Françoise Donneau, Joëlle Collignon, Philippe Delvenne, Nor Eddine Sounni, Guy Jerusalem, Agnès Noël
BACKGROUND: Triple-negative breast cancers (TNBC) are heterogeneous cancers with poor prognosis. We aimed to determine the clinical relevance of membrane type-4 matrix metalloproteinase (MT4-MMP), a membrane type matrix metalloproteinase that interacts with epidermal growth factor receptor (EGFR) overexpressed in >50% of TNBC. METHODS: We conducted a retrospective immunohistochemical analysis on human TNBC samples (n=81) and validated our findings in in vitro and in vivo assays...
February 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28193808/the-remarkable-visual-capacities-of-nocturnal-insects-vision-at-the-limits-with-small-eyes-and-tiny-brains
#7
REVIEW
Eric J Warrant
Nocturnal insects have evolved remarkable visual capacities, despite small eyes and tiny brains. They can see colour, control flight and land, react to faint movements in their environment, navigate using dim celestial cues and find their way home after a long and tortuous foraging trip using learned visual landmarks. These impressive visual abilities occur at light levels when only a trickle of photons are being absorbed by each photoreceptor, begging the question of how the visual system nonetheless generates the reliable signals needed to steer behaviour...
April 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28187836/using-simulation-based-learning-to-prepare-for-a-potential-cardiac-emergency-on-the-labor-unit
#8
REVIEW
Julia Gogle
Cardiac arrest on the labor unit is a rare event, but it can have significant effects on a woman and her fetus, as well as on the clinicians providing health care. Our labor team was challenged to provide care for a woman with a rare cardiac condition that can cause a wide range of events, from fainting to cardiac arrest. This article describes our use of simulation-based learning to prepare for potential scenarios.
February 2017: Nursing for Women's Health
https://www.readbyqxmd.com/read/28186386/investigating-self-efficacy-disease-knowledge-and-adherence-to-treatment-in-adolescents-with-cystic-fibrosis
#9
Nicholas R Faint, Janelle M Staton, Stephen M Stick, Juliet M Foster, André Schultz
AIM: Patient adherence is integral to the effectiveness of prescribed treatment, and is associated with beneficial disease outcomes, yet in adolescents with cystic fibrosis, adherence is often sub-optimal. Multiple factors may contribute to treatment adherence, including disease knowledge and self-efficacy. In adolescents with cystic fibrosis: (i) to compare the disease knowledge of adolescents and their parents before transition to adult care; (ii) to determine the relationship between disease knowledge (adolescent, parent) and adherence; and (iii) to evaluate self-efficacy and its association with disease knowledge and adherence...
February 10, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28179596/nephron-wilms-tumor-1-wt1-and-synaptopodin-expression-in-developing-podocytes-of-mice
#10
Takashi Kato, Shinya Mizuno
Newborn mouse glomeruli are still immature with a morphological feature of an early capillary loop stage, but infant mice do not manifest proteinuria. Little is known about the molecular mechanism whereby infant mice are resistant to proteinuria. Nephrin and synaptopodin are crucial for slit diaphragm and foot process (FP) formation for avoiding proteinuria. Nephrin tyrosine phosphorylation means a transient biological signaling required for FP repair or extension during nephrotic disease. Using an immunohistochemical technique, we examined the natural course of nephrin, Wilms' tumor-1 (WT1) and synaptopodin at 16...
February 7, 2017: Experimental Animals
https://www.readbyqxmd.com/read/28175939/good-neurological-outcome-after-accidental-hyopthermia-presenting-with-asytole
#11
I Eckert, P Imboden, P Paal, J Koppenberg
A 43-year-old woman became exhausted and fainted on descent at 1127 MAMSL altitude and snowfall. A rescue team diagnosed asystole. With manual cardiopulmonary resuscitation (CPR) she was transported to the next extracorporeal life support (ECLS) center. Admission temperature was 20.7 °C. CPR continued until ECLS was initiated. Two days later she was awake, orientated, and with no neurological deficits. With hypothermic cardiac arrest, a favorable outcome depends on early continuous CPR, triage, and ECLS rewarming...
February 7, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28174164/improving-malodour-management-in-advanced-cancer-a-10-year-retrospective-study-of-topical-oral-and-maintenance-metronidazole
#12
Reena George, Thotampuri Shanthi Prasoona, Ramu Kandasamy, Renitha Cherian, Thangarathi Celine, Jenifer Jeba, Shakila Murali, David Mathew
OBJECTIVES: To explore the relative effectiveness of topical or oral metronidazole used for malodour in necrotic cancers and to propose a protocol for metronidazole usage in managing malodour. METHODS: A retrospective case note review of the management of malodour over 10 years comparing outcomes with topical, intermittent and maintenance oral metronidazole. RESULTS: Among 179 patients treated for malodour, the commonest primaries were cervical (45%), and head and neck cancers (40%)...
February 6, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28174006/immunophotoaffinity-labeling-of-binders-of-1-methyladenine-the-oocyte-maturation-inducing-hormone-of-starfish
#13
Tetsuo Toraya, Tetsuo Kida, Atsushi Kuyama, Shinjiro Matsuda, Seiichi Tanaka, Yo Komatsu, Taro Tsurukai
Starfish oocytes are arrested at the prophase stage of the first meiotic division in the ovary and resume meiosis by the stimulus of 1-methyladenine (1-MeAde), the oocyte maturation-inducing hormone of starfish. Putative 1-MeAde receptors on the oocyte surface have been suggested, but not yet been biochemically characterized. Immunophotoaffinity labeling, i.e., photoaffinity labeling combined with immunochemical detection, was attempted to detect unknown 1-MeAde binders including putative maturation-inducing hormone receptors in starfish oocytes...
February 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28167765/low-hesperian-pco2-constrained-from-in-situ-mineralogical-analysis-at-gale-crater-mars
#14
Thomas F Bristow, Robert M Haberle, David F Blake, David J Des Marais, Jennifer L Eigenbrode, Alberto G Fairén, John P Grotzinger, Kathryn M Stack, Michael A Mischna, Elizabeth B Rampe, Kirsten L Siebach, Brad Sutter, David T Vaniman, Ashwin R Vasavada
Carbon dioxide is an essential atmospheric component in martian climate models that attempt to reconcile a faint young sun with planetwide evidence of liquid water in the Noachian and Early Hesperian. In this study, we use mineral and contextual sedimentary environmental data measured by the Mars Science Laboratory (MSL) Rover Curiosity to estimate the atmospheric partial pressure of CO2 (PCO2) coinciding with a long-lived lake system in Gale Crater at ∼3.5 Ga. A reaction-transport model that simulates mineralogy observed within the Sheepbed member at Yellowknife Bay (YKB), by coupling mineral equilibria with carbonate precipitation kinetics and rates of sedimentation, indicates atmospheric PCO2 levels in the 10s mbar range...
February 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28145579/spontaneous-mediastinal-myeloid-sarcoma-in-a-common-marmoset-callithrix-jacchus-and-review-of-the-veterinary-literature
#15
REVIEW
Danielle T Morosco, Curtis R Cline, Michael A Owston, Shyamesh Kumar, Edward J Dick
BACKGROUND: Myeloid sarcoma is a rare manifestation of myeloproliferative disorder defined as an extramedullary mass composed of myeloid precursor cells. A 9-month old, female, common marmoset (Callithrix jacchus) had increased respiratory effort. METHODS: A complete necropsy with histology and immunohistochemistry was performed. RESULTS: The thymus was replaced by a firm, gray-tan mass with a faint green tint, filling over 50% of the thoracic cavity...
February 1, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28145486/photoacoustic-sounds-from-meteors
#16
Richard Spalding, John Tencer, William Sweatt, Benjamin Conley, Roy Hogan, Mark Boslough, GiGi Gonzales, Pavel Spurný
Concurrent sound associated with very bright meteors manifests as popping, hissing, and faint rustling sounds occurring simultaneously with the arrival of light from meteors. Numerous instances have been documented with -11 to -13 brightness. These sounds cannot be attributed to direct acoustic propagation from the upper atmosphere for which travel time would be several minutes. Concurrent sounds must be associated with some form of electromagnetic energy generated by the meteor, propagated to the vicinity of the observer, and transduced into acoustic waves...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28143359/the-role-of-blood-flow-restriction-training-for-applied-practitioners-a-questionnaire-based-survey
#17
Stephen D Patterson, Christopher R Brandner
The purpose of the study was to investigate the current use of blood flow restriction (BFR) by practitioners during exercise/training. A questionnaire was developed and data were obtained from 250 participants, with 115 stating that they had prescribed BFR as an intervention. The most common exercise intervention used in combination with BFR was resistance exercise (99/115), followed by during passive (30/115) conditions, and during aerobic exercise (22/115). The main outcome measure for using the technique was to increase muscle mass (32...
February 1, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28129898/-loss-of-capture-by-myocardial-ischemia-a-case-report
#18
A Sonou, P M Adjagba, M Hounkponou, L Codjo, C Houéhanou-Sonou, S Assani, T Yessoufou, J Sacca, M Houénassi
We report the case of a patient with pacemaker who presented chest pain during exercise followed by fainting. He has a history of arterial hypertension and diabetes. The initial examination was normal; the ventricular stimulation threshold was 1.125 volts (V) and cardiac enzymes were normal. Stress test has reproduced chest pain followed by loss of pacemaker capture and asystole. Coronary angiography showed a tight stenosis of the proximal anterior interventricular artery dilated by a drug-eluting stent. The control of stress test was normal...
February 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28129098/expression-of-kidney-injury-molecule-1-in-healthy-and-diseased-feline-kidney-tissue
#19
S K Bland, C W Schmiedt, M E Clark, J DeLay, D Bienzle
Sensitive markers to detect acute kidney injury (AKI) in cats are lacking. Kidney injury molecule-1 (KIM-1) is a promising marker of acute tubular injury in humans, and sequence and structure of feline KIM-1 have been determined. KIM-1 is shed into urine of cats with natural AKI. The objectives of this study were to characterize temporal and cellular expression of KIM-1 in kidneys from cats without and with experimental and natural AKI using histopathology and immunohistochemistry. Tissue sections from 8 cats without kidney disease, 3 to 4 cats with experimentally induced AKI on each day 1, 3, 6, and 12 after unilateral ischemia/reperfusion, and 9 cats with natural AKI were assessed...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28126883/prognostic-value-of-bone-marrow-tracer-uptake-pattern-in-baseline-pet-scan-in-hodgkin-lymphoma-results-from-an-international-collaborative-study
#20
Colette Zwarthoed, Tarec Cristoffer El-Galaly, Maria Canepari, Matthieu John Ouvrier, Julien Viotti, Marc Ettaiche, Simonetta Viviani, Luigi Rigacci, Livio Trentin, Chiara Rusconi, Stefano Luminari, Maria Cantonetti, Silvia Bolis, Anna Borra, Jacques Darcourt, Flavia Salvi, Edyta Subocz, Joanna Tajer, Waldemar Kulikowski, Bogdan Malkowski, Jan Maciej Zaucha, Andrea Gallamini
RATIONALE: Positron Emission Tomography/Computed Tomography (PET/CT)-ascertained bone marrow involvement (BMI) constitutes the single most important reason for upstaging by PET/CT in Hodgkin lymphoma (HL). However, BMI assessment in PET/CT can be challenging. This study analysed the clinico-pathological correlations and prognostic meaning of different patterns of bone marrow (BM)-Fluorodeoxyglucose (FDG)-uptake in HL. PATIENTS AND METHODS: 180 newly diagnosed early unfavourable and advanced stage HL patients, all scanned at baseline and after 2 Adriamycin-Bleomycin-Vinblastine-Dacarbazine (ABVD) courses with FDG-PET, enrolled in two International studies aimed at assessing the role of interim PET scan in HL, were retrospectively included...
January 26, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
keyword
keyword
12644
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"