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https://www.readbyqxmd.com/read/28538643/immature-patients-in-a-mature-system-regional-analysis-of-florida-s-pediatric-trauma-system
#1
Christopher W Snyder, Nicole M Chandler, Cristen N Litz, Etienne E Pracht, Paul D Danielson, David J Ciesla
BACKGROUND: The state of Florida's trauma system is organized into seven regions, two of which lack designated pediatric trauma centers. Injured children residing in these regions often require transfer out of their home region for definitive care. The purpose of this study was to evaluate the effectiveness and efficiency of the current regionalization approach, focusing on variations between regions. METHODS: Using the Florida Agency for Health Care Administration database, we identified all trauma patients 15 years old or younger admitted between 2009 and 2014...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28528712/timing-of-antimicrobial-prophylaxis-and-infectious-complications-in-pediatric-patients-undergoing-appendectomy
#2
Cristen N Litz, Jessica B Asuncion, Paul D Danielson, Nicole M Chandler
PURPOSE: Antibiotic administration within one hour prior to incision is a common quality metric; however, antibiotics are typically started at the time of diagnosis in pediatric patients with acute appendicitis. The purpose was to determine if antibiotic administration within one hour prior to incision reduces the incidence of surgical site infections (SSI) in pediatric patients with acute appendicitis started on parenteral antibiotics upon diagnosis. METHODS: A retrospective review was performed of 478 patients aged 0-18years who underwent appendectomy for acute appendicitis from 7/2013 to 4/2015...
May 11, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28518129/cardiac-muscle-cell-based-actuator-and-self-stabilizing-biorobot-part-2
#3
Neerajha Nagarajan, Merrel T Holley, Christian Danielson, Kidong Park, Pinar Zorlutuna
In recent years, hybrid devices that consist of a living cell or tissue component integrated with a synthetic mechanical backbone have been developed. These devices, called biorobots, are powered solely by the force generated from the contractile activity of the living component and, due to their many inherent advantages, could be an alternative to conventional fully artificial robots. Here, we describe the methods to seed and characterize a biological actuator and a biorobot that was designed, fabricated, and functionalized in the first part of this two-part article...
May 9, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28504284/fabrication-and-characterization-of-self-folding-thermoplastic-sheets-using-unbalanced-thermal-shrinkage
#4
Christian Danielson, Ali Mehrnezhad, Ashkan YekrangSafakar, Kidong Park
Self-folding or micro-origami technologies are actively investigated as a novel manufacturing process to fabricate three-dimensional macro/micro-structures. In this paper, we present a simple process to produce a self-folding structure with a biaxially oriented polystyrene sheet (BOPS) or Shrinky Dinks. A BOPS sheet is known to shrink to one-third of its original size in plane, when it is heated above 160 °C. A grid pattern is engraved on one side of the BOPS film with a laser engraver to decrease the thermal shrinkage of the engraved side...
May 15, 2017: Soft Matter
https://www.readbyqxmd.com/read/28502321/cytomegalovirus-in-the-human-dentate-gyrus-and-its-impact-on-neural-progenitor-cells-report-of-two-cases
#5
Ju-Yoon Yoon, Brett Danielson, Derek Mathis, Jason Karamchandani, David G Munoz
Congenital cytomegalovirus (CMV) infection in the 2nd and 3rd trimester results in catastrophic CNS abnormalities. This susceptibility is thought to result from the high proportion of neural stem cells in the developing brain. In immunocompromised adults, CNS infection by CMV preferentially affects ependymal surfaces, from where it expands to involve the parenchyma. Experimental models of murine CMV infection demonstrate viral tropism for the dentate gyrus (DG) and subventricular zone, the areas in which adult neurogenesis occurs...
May 15, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/28501162/solidification-of-floating-organic-droplet-in-dispersive-liquid-liquid-microextraction-as-a-green-analytical-tool
#6
REVIEW
Fotouh R Mansour, Neil D Danielson
Dispersive liquid-liquid microextraction (DLLME) is a special type of microextraction in which a mixture of two solvents (an extracting solvent and a disperser) is injected into the sample. The extraction solvent is then dispersed as fine droplets in the cloudy sample through manual or mechanical agitation. Hence, the sample is centrifuged to break the formed emulsion and the extracting solvent is manually separated. The organic solvents commonly used in DLLME are halogenated hydrocarbons that are highly toxic...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28481062/preclinical-transgenic-and-patient-derived-xenograft-models-recapitulate-the-radiological-features-of-human-adamantinomatous-craniopharyngioma
#7
Jessica K R Boult, John R Apps, Annett Hölsken, J Ciaran Hutchinson, Carreno Gabriela, Laura S Danielson, Laura M Smith, Tobias Bäuerle, Rolf Buslei, Michael Buchfelder, Alex K Virasami, Alexander Koers, Owen J Arthurs, Thomas S Jacques, Louis Chesler, Juan Pedro Martinez-Barbera, Simon P Robinson
AIM: To assess the clinical relevance of transgenic and patient-derived xenograft models of adamantinomatous craniopharyngioma (ACP) using serial magnetic resonance imaging (MRI) and high resolution post-mortem micro-computed tomography (μ-CT), with correlation with histology and human ACP imaging. METHODS: The growth patterns and radiological features of tumours arising in Hesx1(Cre/+) ;Ctnnb1(l) °(x(ex3)/+) transgenic mice, and of patient-derived ACP xenografts implanted in the cerebral cortex, were monitored longitudinally in vivo with anatomical and functional MRI, and by ex vivo μ-CT at study end...
May 8, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28472513/insights-from-engineering-the-affibody-fc-interaction-with-a-computational-experimental-method
#8
Masoumeh Nosrati, Sara Solbak, Olle Nordesjö, Mikael Nissbeck, Daniel F A R Dourado, Ken G Andersson, Mohammad Reza Housaindokht, John Löfblom, Anders Virtanen, U Helena Danielson, Samuel Coulbourn Flores
The interaction between the Staphylococcal Protein A (SpA) domain B (the basis of the Affibody) molecule and the Fc of IgG is key to the use of Affibodies in affinity chromatography and in potential therapies against certain inflammatory diseases. Despite its importance and four-decade history, to our knowledge this interaction has never been affinity matured. We elucidate reasons why single-substitutions in the SpA which improve affinity to Fc may be very rare, and also discover substitutions which potentially serve several engineering purposes...
May 3, 2017: Protein Engineering, Design & Selection: PEDS
https://www.readbyqxmd.com/read/28471341/psychometrics-of-a-child-report-measure-of-maternal-support-following-disclosure-of-sexual-abuse
#9
Daniel W Smith, Genelle K Sawyer, Nicholas C Heck, Kristyn Zajac, David Solomon, Shannon Self-Brown, Carla K Danielson, M Elizabeth Ralston
The study examined a new child report measure of maternal support following child sexual abuse. One hundred and forty-six mother-child dyads presenting for a forensic evaluation completed assessments including standardized measures of adjustment. Child participants also responded to 32 items considered for inclusion in a new measure, the Maternal Support Questionnaire-Child Report (MSQ-CR). Exploratory factor analysis of the Maternal Support Questionnaire-Child Report resulted in a three factor, 20-item solution: Emotional Support (9 items), Skeptical Preoccupation (5 items), and Protection/Retaliation (6 items)...
April 2017: Journal of Child Sexual Abuse
https://www.readbyqxmd.com/read/28449373/biophysical-analysis-of-the-dynamics-of-calmodulin-interactions-with-neurogranin-and-ca2-calmodulin-dependent-kinase-ii
#10
Christian Seeger, Vladimir O Talibov, U Helena Danielson
Calmodulin (CaM) functions depend on interactions with CaM-binding proteins, regulated by Ca2+. Induced structural changes influence the affinity, kinetics, and specificities of the interactions. The dynamics of CaM interactions with neurogranin (Ng) and the CaM-binding region of Ca2+/calmodulin-dependent kinase II (CaMKII290-309 ) have been studied using biophysical methods. These proteins have opposite Ca2+ dependencies for CaM binding. Surface plasmon resonance biosensor analysis confirmed that Ca2+ and CaM interact very rapidly, and with moderate affinity ( KDSPR=3μM)...
April 27, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/28433090/neural-biomarker-and-early-temperament-predict-increased-internalizing-symptoms-after-a%C3%A2-natural-disaster
#11
Alexandria Meyer, Carla Kmett Danielson, Allison P Danzig, Vickie Bhatia, Sarah R Black, Evelyn Bromet, Gabrielle Carlson, Greg Hajcak, Roman Kotov, Daniel N Klein
OBJECTIVE: Although most people will experience a traumatic event at some point in their life, only some will develop significant psychological symptoms in the aftermath. In the current study, we use a preexisting longitudinal study located in Long Island to examine the impact of Hurricane Sandy on internalizing symptoms in a large sample of children. We focused on temperamental fear and a biomarker of risk for anxiety, the error-related negativity (ERN). The ERN is a negative deflection in the event-related potential (ERP) occurring when individuals make mistakes and is increased in anxious individuals...
May 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28432815/immunoassays-for-the-quantification-of-alk-and-phosphorylated-alk-support-the-evaluation-of-on-target-alk-inhibitors-in-neuroblastoma
#12
Elizabeth R Tucker, Jennifer R Tall, Laura S Danielson, Sharon Gowan, Yann Jamin, Simon P Robinson, Udai Banerji, Louis Chesler
Targeted inhibition of Anaplastic Lymphoma Kinase (ALK) is a successful approach for the treatment of many ALK-aberrant malignancies, however the presence of resistant mutations necessitates both the development of more potent compounds and pharmacodynamic methods with which to determine their efficacy. We describe immunoassays designed to quantitate phosphorylation of ALK, and their use in preclinical models of neuroblastoma, a pediatric malignancy in which gain-of-function ALK mutations predict a poor overall outcome to conventional treatment...
April 22, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28425120/unravelling-swedish-informal-caregivers-generalised-resistance-deficits
#13
Mia M T Wennerberg, Monica Eriksson, Solveig M Lundgren, Ella Danielson
In salutogenic theory, individual/contextual, immaterial/material characteristics enabling movements towards health are labelled Specific and Generalised Resistance Resources, SRRs/GRRs, and characteristics counteracting such movements Specific and Generalised Resistance Deficits, SRDs/GRDs. The aim of this paper was to present SRDs and GRDs described by caregivers as stemming from themselves and their care recipient. Guided by salutogenic theory, an explorative design was used to collect data through interviews with 32 Swedish informal caregivers...
April 20, 2017: Scandinavian Journal of Caring Sciences
https://www.readbyqxmd.com/read/28408075/effect-of-hospital-type-on-the-treatment-of-acute-appendicitis-in-teenagers
#14
Cristen N Litz, David J Ciesla, Paul D Danielson, Nicole M Chandler
BACKGROUND: Teenagers receive appendicitis care at both adult and pediatric facilities. The purpose of this study was to evaluate outcomes following treatment of acute appendicitis in teenagers based on the type of hospital facility. METHODS: Patients aged 13-17years with acute appendicitis who were discharged from acute care hospitals from 2009 to 2014 were identified using a statewide discharge dataset. Hospitals were classified as pediatric or adult and outcomes were compared...
April 5, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28401057/intestinal-hypoganglionosis-leading-to-intestinal-failure-and-the-compassionate-use-of-omegaven%C3%A2
#15
Racha Khalaf, Sara Karjoo, Paul Danielson, Michael Wilsey, Fauzia Shakeel
Intestinal hypoganglionosis is a rare innervation disorder that provides numerous nutritional, medical and surgical challenges. In this case report, we present a case of a newborn with intestinal hypoganglionosis leading to intestinal failure and intestinal failure-associated liver disease who responded to Omegaven™, a fat emulsion comprised of omega-3 fatty acids. Omegaven™ has been shown to be beneficial in the management of cholestatic liver injury. Clinical success with Omegaven™ was seen in this patient with a clear decrease in aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase and complete resolution of cholestasis with a direct bilirubin of zero within two weeks of initiation of Omegaven™...
March 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28392047/monitoring-drug-serum-protein-interactions-for-early-adme-prediction-through-surface-plasmon-resonance-technology
#16
Edoardo Fabini, U Helena Danielson
Many molecules fail to reach the market due to poor pharmacokinetic (PK) properties, rendering the potential drug virtually unavailable for the primary target despite efficient administration to the body. PK properties of endogenous and exogenous compounds in mammals are dependent, among other factors, on their ability to interact with serum proteins. The extent of binding can greatly influence their ADME (adsorption, distribution, metabolism and execration) profile. Reliable and cost-effective bioavailability studies, early in the drug discovery process, can lead to an improvement of the success rate for compounds entering clinical trials...
March 28, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28381887/best-practices-in-establishing-and-sustaining-consortia-in-pharmacy-education
#17
Jennifer Danielson, Ana Hincapie, Gina Baugh, Luke Rice, Erin Sy, Jonathan Penm, Christian Albano
Objective. To describe best practices, necessary resources, and success or lessons learned from established consortia in pharmacy education. Methods. Using semi-structured interviews and qualitative analysis, interviews with members of established consortia in pharmacy education were conducted until saturation was reached. Themes were analyzed and meaningful descriptions of consortia characteristics were developed using systematic text condensation. Results. Thirteen interviews were conducted. The primary purpose for forming a consortium was identified as threefold: share ideas/best practices; facilitate collaboration; and perform shared problem-solving...
March 25, 2017: American Journal of Pharmaceutical Education
https://www.readbyqxmd.com/read/28377023/percutaneous-ultrasound-guided-vs-intraoperative-rectus-sheath-block-for-pediatric-umbilical-hernia-repair-a-randomized-clinical-trial
#18
Cristen N Litz, Sandra M Farach, Allison M Fernandez, Richard Elliott, Jenny Dolan, Nikhil Patel, Lillian Zamora, Paul M Colombani, Nebbie E Walford, Ernest K Amankwah, Christopher W Snyder, Paul D Danielson, Nicole M Chandler
BACKGROUND: Regional anesthesia is commonly used in children. Our hypothesis was that percutaneous ultrasound-guided (PERC) rectus sheath blocks would result in lower postoperative pain scores compared to intraoperative (IO) rectus sheath blocks following umbilical hernia repair. METHODS: A single-institution randomized blinded trial was conducted in pediatric patients undergoing elective umbilical hernia repair. The primary outcome was mean postoperative Wong-Baker pain score...
March 16, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28370228/pharmacologic-treatment-of-cannabinoid-hyperemesis-syndrome-a-systematic-review
#19
John R Richards, Brent K Gordon, Aaron R Danielson, Aimee K Moulin
OBJECTIVE: Cannabinoid hyperemesis syndrome (CHS) has become more prevalent with increasing cannabis use. CHS is often resistant to standard antiemetics. The objective of this study is to review the current evidence for pharmacologic treatment of CHS. METHODS: MEDLINE, PsycINFO, DARE, OpenGrey, Google Scholar, and the Cochrane Library were searched from inception to February 2017. Articles were selected and reviewed independently. Evidence was graded using Oxford CEBM guidelines...
March 31, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28369733/feeding-in-fear-how-adult-male-western-chimpanzees-pan-troglodytes-verus-adjust-to-predation-and-savanna-habitat-pressures
#20
Stacy Lindshield, Brent J Danielson, Jessica M Rothman, Jill D Pruetz
OBJECTIVES: We evaluated risk-sensitive foraging in adult male western chimpanzees (Pan troglodytes verus) occupying a savanna environment at Fongoli, Senegal. The aim of this study was to determine how the risks of predation and heat stress influenced their behavior while feeding on a key food, fruit of the baobab tree (Adansonia digitata). MATERIALS AND METHODS: Proximity of fruiting baobab trees to anthropogenic landmarks were compared to food intake, feeding rate, and behavioral indicators of fear in adult males (N = 11) at Fongoli...
March 28, 2017: American Journal of Physical Anthropology
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