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https://www.readbyqxmd.com/read/28324994/co-activation-periods-of-gastrocnemius-and-vastus-lateralis-during-walking-evaluated-by-surface-electromyography
#1
Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo
"In vivo" studies reported that the co-activation of gastrocnemius and quadriceps femoris (QF) muscles produces ACL strain values greater than those caused by an isolated activation of either muscle. Aim of this study was to assess the co-activation of gastrocnemius (lateral head, GL) and vastus lateralis (VL) in healthy and young adults during walking. To this purpose the Statistical Gait Analysis was performed, that allows a characterization of gait considering hundreds of strides belonging to the same walking trial...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324910/lacosamide-lowers-valproate-and-levetiracetam-levels
#2
Maria Tountopoulou, Bernhard Weschke, Angela M Kaindl
Lacosamide (LCM) due to no known drug interaction and the absence of metabolic enzyme induction is a good candidate for an add-on medication, especially in combination with lamotrigine, levetiracetam (LEV), oxcarbazepine, topiramate, and valproic acid (VPA). Here we report for the first time, to our knowledge, that LCM can lower VPA and LEV serum levels. At present, there are no known explicable mechanisms of action of LCM, which lowers VPA and LEV. Here observed drug interaction of LCM is of clinical significance, which might be useful for other colleagues in the field...
March 21, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28324666/gene-expression-analysis-to-assess-the-relevance-of-rodent-models-to-human-lung-injury
#3
Timothy E Sweeney, Shane Lofgren, Purvesh Khatri, Angela J Rogers
Rationale The relevance of animal models to human diseases is an area of intense scientific debate. The degree to which mouse models of lung injury recapitulate human lung injury has never been assessed. Integrating data from both human and animal expression studies allows for increased statistical power and identification of conserved differential gene expression across organisms and conditions. Objectives Comprehensive integration of gene expression data in experimental ALI in rodents compared to humans. Methods We performed two separate gene expression multi-cohort analyses to determine differential gene expression in experimental animal and human lung injury...
March 21, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28324160/regulation-of-blood-oxygen-transport-in-hibernating-mammals
#4
Inge G Revsbech, Angela Fago
Along with the periodic reductions in O2 requirements of mammalian hibernators during winter, the O2 affinity of the blood of mammalian hibernators is seasonally regulated to help match O2 supply to consumption, contributing to limit tissue oxidative stress, particularly at arousals. Specifically, mammalian hibernators consistently show an overall increase in the blood-O2 affinity, which causes a decreased O2 unloading to tissues, while having similar or lower tissue O2 tensions during hibernation. This overview explores how the decreased body temperature and concentration of red blood cell 2,3-diphosphoglycerate (DPG) that occur in hibernation contribute separately or in combination to the concurrent increase in the O2 affinity of the hemoglobin, the O2 carrier protein of the blood...
March 21, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28324046/characteristics-of-pediatric-vs-adult-pheochromocytomas-and-paragangliomas
#5
Christina Pamporaki, Barbora Hamplova, Mirko Peitzsch, Aleksander Prejbisz, Felix Beuschlein, Henri J L M Timmers, Martin Fassnacht, Barbara Klink, Maya Lodish, Constantine A Stratakis, Angela Huebner, Stephanie Fliedner, Mercedes Robledo, Richard O Sinnott, Andrzej Januszewicz, Karel Pacak, Graeme Eisenhofer
Context: Pheochromocytomas and paragangliomas (PPGLs) in children are often hereditary and may present with different characteristics compared to adults. Hereditary PPGLs can be separated into two groups: cluster 1 and cluster 2 tumors due to mutations impacting hypoxia and kinase receptor signaling pathways respectively. Objective: To identify differences in presentation of PPGLs between children and adults. Design: A retrospective cross-sectional clinical study...
January 31, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28324029/vital-directions-for-health-and-health-care-priorities-from-a-national-academy-of-medicine-initiative
#6
Victor J Dzau, Mark B McClellan, J Michael McGinnis, Sheila P Burke, Molly J Coye, Angela Diaz, Thomas A Daschle, William H Frist, Martha Gaines, Margaret A Hamburg, Jane E Henney, Shiriki Kumanyika, Michael O Leavitt, Ruth M Parker, Lewis G Sandy, Leonard D Schaeffer, Glenn D Steele, Pamela Thompson, Elias Zerhouni
Importance: Recent discussion has focused on questions related to the repeal and replacement of portions of the Affordable Care Act (ACA). However, issues central to the future of health and health care in the United States transcend the ACA provisions receiving the greatest attention. Initiatives directed to certain strategic and infrastructure priorities are vital to achieve better health at lower cost. Objectives: To review the most salient health challenges and opportunities facing the United States, to identify practical and achievable priorities essential to health progress, and to present policy initiatives critical to the nation's health and fiscal integrity...
March 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28323936/the-steroid-metabolome-in-the-isolated-ovarian-follicle-and-its-response-to-androgen-exposure-and-antagonism
#7
Marie Lebbe, Angela E Taylor, Jenny A Visser, Jackson Kirkman-Brown, Teresa K Woodruff, Wiebke Arlt
The ovarian follicle is a major site of steroidogenesis, crucially required for normal ovarian function and female reproduction. Our understanding of androgen synthesis and metabolism in the developing follicle has been limited by sensitivity and specificity issues of previously used assays. Here we used liquid chromatography-tandem mass spectrometry to map the stage-dependent endogenous steroid metabolome in an encapsulated in vitro follicle growth system, from murine secondary through antral follicles. Furthermore, follicles were cultured in the presence of androgen precursors, non-aromatizable active androgen and androgen receptor (AR) antagonist to assess effects on steroidogenesis and follicle development...
February 23, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323819/development-of-an-adaptive-personalized-and-scalable-dementia-care-program-early-findings-from-the-care-ecosystem
#8
Katherine L Possin, Jennifer Merrilees, Stephen J Bonasera, Alissa Bernstein, Winston Chiong, Kirby Lee, Leslie Wilson, Sarah M Hooper, Sarah Dulaney, Tamara Braley, Sutep Laohavanich, Julie E Feuer, Amy M Clark, Michael W Schaffer, A Katrin Schenk, Julia Heunis, Paulina Ong, Kristen M Cook, Angela D Bowhay, Rosalie Gearhart, Anna Chodos, Georges Naasan, Andrew B Bindman, Daniel Dohan, Christine Ritchie, Bruce L Miller
Katherine Possin and colleagues report on the implementation, development, and early findings of the Care Ecosystem, an adaptive, personalized, and scalable dementia care program.
March 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28323733/linear-endobronchial-ultrasound-guided-insertion-of-a-fiducial-marker-a-new-tool-for-tracking-central-lesions
#9
Alessio Casutt, Angela Koutsokera, Nicolas Peguret, Alban Lovis
Stereotactic body radiotherapy (SBRT) is an effective method for the treatment of localized primary lung tumors. Cyberknife, a highly accurate SBRT technique, follows the target during respiratory cycles using a metallic fiducial marker (FM) previously inserted into the lesion. Various methods have been described for the placement of an FM in peripheral pulmonary lesions; however, none of these is appropriate for mediastinal or hilar tumors. The placement of FMs in central lesions to achieve accurate SBRT is particularly relevant due to their higher mobility during respiratory and cardiac cycles...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28323516/does-normobaric-hyperoxia-cause-oxidative-stress-in-the-injured-brain-a-microdialysis-study-using-8-iso-pgf2%C3%AE-as-a-biomarker
#10
Marian Vidal-Jorge, Angela Sánchez-Guerrero, Gemma Mur-Bonet, Lidia Castro, Andreea Rădoi, Marilyn Riveiro, Natividad Fernández-Prado, Jacinto Baena, Maria A Poca, Juan Sahuquillo
Significant controversy exists regarding the potential clinical benefit of normobaric hyperoxia therapy (NBO) in patients with traumatic brain injury (TBI). This study consisted of two aims: 1) to assess whether NBO improves brain oxygenation and metabolism and 2) to determine whether this therapy may increase the risk of oxidative stress (OxS), using 8-iso-PGF2α as a biomarker. Thirty-one patients with a median admission Glasgow Coma Scale score of 4 (min: 3, max: 12) were monitored with cerebral microdialysis and brain tissue oxygen sensors and treated with FiO2 of 1...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28319539/precision-medicine-versus-procrustean-beds
#11
Darin Correll, Angela Bader
No abstract text is available yet for this article.
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319514/do-not-resuscitate-status-is-associated-with-increased-mortality-but-not-morbidity
#12
Elisa C Walsh, Ethan Y Brovman, Angela M Bader, Richard D Urman
BACKGROUND: Do-not-resuscitate (DNR) orders instruct medical personnel to forego cardiopulmonary resuscitation in the event of cardiopulmonary arrest, but they do not preclude surgical management. Several studies have reported that DNR status is an independent predictor of 30-day mortality; however, the etiology of increased mortality remains unclear. We hypothesized that DNR patients would demonstrate increased postoperative mortality, but not morbidity, relative to non-DNR patients undergoing the same procedures...
March 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319499/developmental-venous-anomalies-mimicking-neoplasm-on-11c-methionine-pet-and-dsc-perfusion-mri
#13
Julie H Harreld, Mikhail Doubrovin, Elizabeth R Butch, Angela Edwards, Barry Shulkin
Elevated relative cerebral blood volume on perfusion MRI and increased uptake on C-methionine PET can be used to diagnose and guide biopsy of brain tumors but are not specific. We report increased uptake on C-methionine PET associated with 4 developmental venous anomalies (DVAs) in 3 children with brain tumors, which could potentially mimic tumor and misdirect biopsy. Because DVAs are not readily visible on CT, prevention of misdirected biopsy in patients with focally elevated C-methionine uptake and relative cerebral blood volume relies on close correlation with contrast-enhanced anatomic MRI to exclude DVA or other nonneoplastic etiology...
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28319121/growth-altering-microbial-interactions-are-responsive-to-chemical-context
#14
Angela Liu, Anne M Archer, Matthew B Biggs, Jason A Papin
Microbial interactions are ubiquitous in nature, and are equally as relevant to human wellbeing as the identities of the interacting microbes. However, microbial interactions are difficult to measure and characterize. Furthermore, there is growing evidence that they are not fixed, but dependent on environmental context. We present a novel workflow for inferring microbial interactions that integrates semi-automated image analysis with a colony stamping mechanism, with the overall effect of improving throughput and reproducibility of colony interaction assays...
2017: PloS One
https://www.readbyqxmd.com/read/28318795/mechanisms-of-toxic-action-of-silver-nanoparticles-in-the-protozoan-tetrahymena-thermophila-from-gene-expression-to-phenotypic-events
#15
Katre Juganson, Monika Mortimer, Angela Ivask, Sandra Pucciarelli, Cristina Miceli, Kaja Orupõld, Anne Kahru
Silver nanoparticles (AgNPs) are highly toxic to aquatic organisms, however, there is no consensus whether the toxicity is caused solely by released Ag-ions or also by reactive oxygen species (ROS). Here, the effects of protein-coated AgNPs (14.6 nm, Collargol) were studied on viability, oxidative stress and gene expression levels in wild type strains (CU427 and CU428) of ciliate Tetrahymena thermophila. Viability-based 24 h EC50 values of AgNPs were relatively high and significantly different for the two strains: ∼100 mg/L and ∼75 mg/L for CU427 and CU428, respectively...
March 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28318764/increasing-hiv-1-subtype-diversity-in-seven-states-united-states-2006-2013
#16
Alexandra M Oster, William M Switzer, Angela L Hernandez, Neeraja Saduvala, Joel O Wertheim, Ndidi Nwangwu-Ike, M Cheryl Ocfemia, Ellsworth Campbell, H Irene Hall
PURPOSE: The aim of the analysis was to explore HIV-1 subtype diversity in the United States and understand differences in prevalence of non-B subtypes and circulating recombinant forms (CRFs) between demographic/risk groups and over time. METHODS: We included HIV-1 polymerase sequences reported to the National HIV Surveillance System for HIV infections diagnosed during 2006-2013 in seven states. We assigned subtype or CRF using the automated subtyping tool COMET, assessed subtype/CRF prevalence by demographic characteristics and country of birth, and determined changes in subtype/CRF by HIV diagnosis year...
February 22, 2017: Annals of Epidemiology
https://www.readbyqxmd.com/read/28318280/adjustment-between-work-demands-and-health-needs-development-of-the-work-health-balance-questionnaire
#17
Andrea Gragnano, Massimo Miglioretti, Monique H W Frings-Dresen, Angela G E M de Boer
PURPOSE: This study presented the construct of Work-Health Balance (WHB) and the design and validation of the Work-Health Balance Questionnaire (WHBq). More and more workers have a long-standing health problem or disability (LSHPD). The management of health needs and work demands is crucial for the quality of working life and work retention of these workers. However, no instrument exists measuring this process. The WHBq assesses key factors in the process of adjusting between health needs and work demands...
March 20, 2017: Rehabilitation Psychology
https://www.readbyqxmd.com/read/28318056/cutaneous-and-systemic-findings-in-mosaic-neurofibromatosis-type-1
#18
Igor Vázquez-Osorio, Anna Duat-Rodríguez, Francisco Javier García-Martínez, Antonio Torrelo, Lucero Noguera-Morel, Angela Hernández-Martín
BACKGROUND/OBJECTIVES: Mosaic neurofibromatosis type 1 (MNF1) is a variant of neurofibromatosis type 1 (NF1) in which clinical manifestations are limited to one or several body segments. The objective was to characterize the cutaneous features and associated systemic findings in a cohort of children with MNF1. METHODS: We performed a retrospective study of 40 children diagnosed with MNF1 at the Department of Dermatology, Hospital Infantil Niño Jesús, Madrid, Spain, from January 1, 1986, to October 31, 2015...
March 20, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28317847/evidence-for-coseismic-subsidence-events-in-a-southern-california-coastal-saltmarsh
#19
Robert Leeper, Brady Rhodes, Matthew Kirby, Katherine Scharer, Joseph Carlin, Eileen Hemphill-Haley, Simona Avnaim-Katav, Glen MacDonald, Scott Starratt, Angela Aranda
Paleoenvironmental records from a southern California coastal saltmarsh reveal evidence for repeated late Holocene coseismic subsidence events. Field analysis of sediment gouge cores established discrete lithostratigraphic units extend across the wetland. Detailed sediment analyses reveal abrupt changes in lithology, percent total organic matter, grain size, and magnetic susceptibility. Microfossil analyses indicate that predominantly freshwater deposits bury relic intertidal deposits at three distinct depths...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317790/clinical-events-beyond-one-year-after-an-acute-coronary-syndrome-insights-from-the-reclose-2-acs-study
#20
Guido Parodi, Benedetta Bellandi, Giuseppe Tarantini, Fernando Scudiero, Renato Valenti, Rossella Marcucci, Angela Migliorini, Niccolò Marchionni, Anna Maria Gori, Chiara Zocchi, David Antoniucci
AIMS: The optimal duration of dual antiplatelet therapy after an acute coronary syndrome (ACS) is still unknown and debated. We sought to assess the incidence of adverse clinical events beyond 12 months after an ACS in patients treated by percutaneous coronary intervention (PCI) and clopidogrel. METHODS AND RESULTS: Among 1,592 consecutive ACS patients treated by PCI enrolled in the RECLOSE 2-ACS study and without event within one year, 1,310 (82%) patients presented at least one risk factor such as age ≥65 years, diabetes, prior myocardial infarction (MI), chronic kidney disease and multivessel coronary disease...
March 20, 2017: EuroIntervention
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