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https://www.readbyqxmd.com/read/27932496/sonic-hedgehog-pathway-activation-increases-mitochondrial-abundance-and-activity-in-hippocampal-neurons
#1
Pamela J Yao, Uri Manor, Ronald S Petralia, Rebecca D Brose, Ryan T Y Wu, Carolyn Ott, Ya-Xian Wang, Ari Charnoff, Jennifer Lippincott-Schwartz, Mark P Mattson
Mitochondria are essential organelles whose biogenesis, structure, and function are regulated by many signaling pathways. In this study we present evidence that, in hippocampal neurons, activation of the Sonic hedgehog (Shh) signaling pathway impacts multiple aspects of mitochondria. Mitochondrial mass was increased significantly in neurons treated with Shh. Using biochemical and fluorescence imaging analyses, we show that Shh signaling activity reduces mitochondrial fission and promotes mitochondrial elongation, at least in part, via suppression of the mitochondrial fission protein dynamin-like GTPase Drp1...
December 8, 2016: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/27930441/masked-tachycardia-a-predictor-of-adverse-outcome-in-hypertension
#2
Paolo Palatini, Gianpaolo Reboldi, Lawrence J Beilin, Edoardo Casiglia, Kazuo Eguchi, Yutaka Imai, Kazuomi Kario, Takayoshi Ohkubo, Sante D Pierdomenico, Joseph E Schwartz, Lindon Wing, Paolo Verdecchia
OBJECTIVE: The relative role of office heart rate (HR) and ambulatory HR for predicting major adverse cardiovascular events (MACEs) and mortality is not well known. Aim of this study was to investigate the association of white-coat tachycardia and masked tachycardia with MACE and mortality in hypertensive patients. METHODS: We performed 24-h ambulatory blood pressure and HR monitoring in 7602 hypertensive patients (4165 men) aged 52 ± 16 years enrolled in six prospective studies in Italy, Japan, and Australia...
December 7, 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27930435/polypoidal-choroidal-vasculopathy-a-clinicopathologic-study
#3
Kareem Moussa, Michele M Bloomer, Daniel M Schwartz, Carolyn K Pan, Brian C Toy, Joseph B Crawford, Armin R Afshar
PURPOSE: To present a unique case of polypoidal choroidal vasculopathy presenting as a blind, painful eye with a suspected intraocular mass, and to correlate clinical findings with histopathologic studies. METHODS: Clinical case report and literature review. RESULTS: A 58-year-old Vietnamese man presented with a blind, painful eye with concern for an intraocular mass. B-scan ultrasonography showed massive intraocular hemorrhage and could not rule out a tumor...
December 7, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/27930405/the-cost-of-crohn-s-disease-varied-health-care-expenditure-patterns-across-distinct-disease-trajectories
#4
Bhavana B Rao, Benjamin H Click, Ioannis E Koutroubakis, Claudia Ramos Rivers, Miguel Regueiro, Jason Swoger, Marc Schwartz, Jana Hashash, Arthur Barrie, Michael A Dunn, David G Binion
BACKGROUND: Patients with Crohn's disease (CD) encompass a heterogeneous disease spectrum, with variable health care utilization and expenditure patterns. Lémann Index (LI) is a metric that quantifies cumulative bowel damage and has shown utility in delineating distinct disease phenotypes. We aimed to characterize the financial burden from all medical care in CD cohort in relation to the variations in LI-based disease phenotypes. METHODS: CD patients with 5-year (y) follow-up from a prospective registry were included...
December 7, 2016: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27930271/there-is-inadequate-evidence-to-support-the-division-of-the-genus-borrelia
#5
Gabriele Margos, Durdica Marosevic, Sally Cutler, Marketa Derdakova, Maria Diuk-Wasser, Stefan Emler, Durland Fish, Jeremy Gray, Klaus-Peter Hunfeld, Benoit Jaulhac, Olaf Kahl, Sergey Kovalev, Peter Kraiczy, Robert S Lane, Reto Lienhard, Per-Eric Lindgren, Nicholas Ogden, Katharina Ornstein, Tobias Rupprecht, Ira Schwartz, Andreas Sing, Reinhard K Straubinger, Franc Strle, Maarten Voordouw, Annapaola Rizzoli, Brian Stevenson, Volker Fingerle
No abstract text is available yet for this article.
December 8, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27929018/greenland-was-nearly-ice-free-for-extended-periods-during-the-pleistocene
#6
Joerg M Schaefer, Robert C Finkel, Greg Balco, Richard B Alley, Marc W Caffee, Jason P Briner, Nicolas E Young, Anthony J Gow, Roseanne Schwartz
The Greenland Ice Sheet (GIS) contains the equivalent of 7.4 metres of global sea-level rise. Its stability in our warming climate is therefore a pressing concern. However, the sparse proxy evidence of the palaeo-stability of the GIS means that its history is controversial (compare refs 2 and 3 to ref. 4). Here we show that Greenland was deglaciated for extended periods during the Pleistocene epoch (from 2.6 million years ago to 11,700 years ago), based on new measurements of cosmic-ray-produced beryllium and aluminium isotopes ((10)Be and (26)Al) in a bedrock core from beneath an ice core near the GIS summit...
December 7, 2016: Nature
https://www.readbyqxmd.com/read/27928966/hot-topics-in-perioperative-antibiotics-for-cataract-surgery
#7
Patrycja Kuklo, Andrzej Grzybowski, Stephen G Schwartz, Harry W Flynn, Avinash Pathengay
BACKGROUND: Acute-onset postoperative endophthalmitis is an uncommon but potentially serious complication of cataract surgery. Since there are relatively few randomized clinical trials comparing the timing and administration of prophylactic antibiotics, there are wide variations in prevention practices around the world. METHODS: Literature review. RESULTS: Antibiotics may be used before surgery, during surgery, or after surgery in an attempt to decrease the rates of endophthalmitis...
December 7, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27928964/hot-topics-in-pharmacogenetics-of-age-related-macular-degeneration
#8
Stephen G Schwartz, Milam A Brantley, Jaclyn L Kovach, Andrzej Grzybowski
Age-related macular degeneration (AMD) is a leading cause of irreversible visual loss and is primarily treated with nutritional supplementation as well as with anti-vascular endothelial growth factor (VEGF) agents for certain patients with neovascular disease. AMD is a complex disease with both genetic and environmental risk factors. In addition, treatment outcomes from nutritional supplementation and anti-VEGF agents vary considerably. Therefore, it is reasonable to suspect that there may be pharmacogenetic influences on these treatments...
December 8, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27927943/superior-vena-cava-banding-to-facilitate-unilateral-bidirectional-glenn-operation-in-patients-with-single-ventricle-heart-disease-and-bilateral-superior-vena-cavae
#9
Matthew C Schwartz, David Nykanen, William DeCampli, Kamal Pourmoghadam
Staged palliation to achieve a total cavopulmonary connection is a common treatment strategy in patients with single ventricle congenital heart disease. Patients with bilateral superior caval veins (bilateral SVC) often require the creation of bilateral superior cavopulmonary connections as part of the staged palliation, and these patients are at increased risk of morbidity. We describe a novel technique used in two patients with bilateral SVC and very small (1-2 mm) bridging vein that encouraged bridging vein growth and facilitated creation of a unilateral superior cavopulmonary connection...
December 7, 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27927677/comparison-of-diabetic-retinopathy-classification-using-fluorescein-angiography-and-optical-coherence-tomography-angiography
#10
Mário Soares, Catarina Neves, Inês Pereira Marques, Isabel Pires, Christian Schwartz, Miguel Ângelo Costa, Torcato Santos, Mary Durbin, José Cunha-Vaz
PURPOSE: To analyse and compare the classification of eyes with diabetic retinopathy using fluorescein angiography (FA) and optical coherence tomography angiography (OCTA) performed either with AngioPlex or AngioVue. METHODS: This was an observational cross-sectional study of 50 eyes from 26 diabetic subjects. Two independent graders classified the FA angiograms, to assess the presence and severity of several characteristics according to the ETDRS Report 11, and a similar evaluation was performed for each 3×3 mm OCTA image from the superficial retinal layer and for the full retina slab...
December 7, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27927620/ambient-fine-particulate-matter-outdoor-temperature-and-risk-of-metabolic-syndrome
#11
Rachel S Wallwork, Elena Colicino, Jia Zhong, Itai Kloog, Brent A Coull, Pantel Vokonas, Joel D Schwartz, Andrea A Baccarelli
Ambient air pollution and temperature have been linked with cardiovascular morbidity and mortality. Metabolic syndrome and its components-abdominal obesity, elevated fasting blood glucose concentration, low high-density lipoprotein cholesterol concentration, hypertension, and hypertriglyceridemia-predict cardiovascular disease, but the environmental causes are understudied. In this study, we prospectively examined the long-term associations of air pollution, defined as particulate matter with an aerodynamic diameter less than or equal to 2...
December 7, 2016: American Journal of Epidemiology
https://www.readbyqxmd.com/read/27925584/topological-analysis-and-gaussian-decision-tree-effective-representation-and-classification-of-biosignals-of-small-sample-size
#12
Zhifei Zhang, Yang Song, Haochen Cui, Jayne Wu, Fernando Schwartz, Hairong Qi
GOAL: Bucking the trend of big data, in microdevice engineering, small sample size is common, especially when the device is still at the proof-of-concept stage. The small sample size, small inter-class variation, and large intra-class variation, have brought biosignal analysis new challenges. Novel representation and classification approaches need to be developed to effectively recognize targets of interests with the absence of a large training set. METHODS: Moving away from the traditional signal analysis in the spatiotemporal domain, we exploit the biosignal representation in the topological domain that would reveal the intrinsic structure of point clouds generated from the biosignal...
December 2, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27924449/translation-and-adaptation-of-skin-cancer-genomic-risk-education-materials-for-implementation-in-primary-care
#13
Vivian M Rodríguez, Erika Robers, Kate Zielaskowski, C Javier González, Keith Hunley, Kimberly A Kaphingst, Dolores D Guest, Andrew Sussman, Kirsten A Meyer White, Matthew R Schwartz, Jennie Greb, Yvonne Talamantes, Jessica Bigney, Marianne Berwick, Jennifer L Hay
Genomic medicine has revolutionized disease risk identification and subsequent risk reduction interventions. Skin cancer risk genomic feedback is a promising vehicle to raise awareness and protective behaviors in the general population, including Hispanics who are largely unaware of their risks. Yet, personalized genomics currently has limited reach. This study is the initial phase of a randomized controlled trial investigating the personal utility and reach of genomic testing and feedback for melanoma. Semi-structured cognitive interviews (N = 28), stratified across education level, were conducted to assess the comprehension and acceptability of translated skin cancer genomic risk education materials with Spanish-speaking Hispanic primary care patients...
December 6, 2016: Journal of Community Genetics
https://www.readbyqxmd.com/read/27924361/prevalence-of-non-cardiovascular-findings-on-ct-angiography-in-children-with-congenital-heart-disease
#14
Archana Malik, Jeffrey C Hellinger, Sabah Servaes, Mathew C Schwartz, Marc S Keller, Monica Epelman
BACKGROUND: CT angiography is gaining broader acceptance in the evaluation of children with known or suspected congenital heart disease. These studies include non-cardiovascular structures such as the mediastinum, lung parenchyma and upper abdominal organs. It is important to inspect all these structures for potential abnormalities that might be clinically important and, in some cases, may impact care plans. OBJECTIVE: To determine the prevalence of non-cardiovascular findings in CT angiography of children with congenital heart disease...
December 6, 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/27921276/relationship-between-physician-adjudicated-adverse-events-and-patient-reported-health-related-quality-of-life-in-a-phase-ii-clinical-trial-nct01143402-of-patients-with-metastatic-uveal-melanoma
#15
Thomas M Atkinson, Jennifer L Hay, Alexander Shoushtari, Yuelin Li, Daniel J Paucar, Sloane C Smith, Ragini R Kudchadkar, Austin Doyle, Jeffrey A Sosman, Jorge Fernando Quevedo, Mohammed M Milhem, Anthony M Joshua, Gerald P Linette, Thomas F Gajewski, Jose Lutzky, David H Lawson, Christopher D Lao, Patrick J Flynn, Mark R Albertini, Takami Sato, Karl Lewis, Brian Marr, David H Abramson, Mark Andrew Dickson, Gary K Schwartz, Richard D Carvajal
PURPOSE: Clinical trials commonly use physician-adjudicated adverse event (AE) assessment via the common terminology criteria for adverse events (CTCAE) for decision-making. Patient-reported health-related quality of life (HRQoL) data are becoming more frequent in oncology; however, the relationship between physician-adjudicated AE assessment and HRQoL is understudied. METHODS: Data from a phase II trial (clinicaltrials.gov identifier: NCT01143402) where patients with metastatic uveal melanoma were randomized to receive selumetinib, an oral MEK inhibitor, or chemotherapy were analyzed...
December 5, 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27920145/three-small-receptive-field-ganglion-cells-in-the-mouse-retina-are-distinctly-tuned-to-size-speed-and-object-motion
#16
Jason Jacoby, Gregory W Schwartz
: Retinal ganglion cells (RGCs) are frequently divided into functional types by their ability to extract and relay specific features from a visual scene, such as the capacity to discern local or global motion, direction of motion, stimulus orientation, contrast or uniformity, or the presence of large or small objects. Here we introduce three previously uncharacterized, non-direction selective ON-OFF RGC types that represent a distinct set of feature detectors in the mouse retina. The three high definition (HD) RGCs possess small receptive field (RF) centers and strong surround suppression...
December 5, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27920072/clinic-blood-pressure-underestimates-ambulatory-blood-pressure-in-an-untreated-employer-based-us-population-results-from-the-masked-hypertension-study
#17
Joseph E Schwartz, Matthew M Burg, Daichi Shimbo, Joan E Broderick, Arthur A Stone, Joji Ishikawa, Richard Sloan, Tyla Yurgel, Steven Grossman, Thomas G Pickering
BACKGROUND: Ambulatory blood pressure (ABP) is consistently superior to clinic blood pressure (CBP) as a predictor of cardiovascular morbidity and mortality risk. A common perception is that ABP is usually lower than CBP. The relationship of the CBP minus ABP difference to age has not been examined in the United States. METHODS: Between 2005 and 2012, 888 healthy, employed, middle-aged (mean±SD age, 45±10.4 years) individuals (59% female, 7.4% black, 12% Hispanic) with screening BP <160/105 mm Hg and not taking antihypertensive medication completed 3 separate clinic BP assessments and a 24-hour ABP recording for the Masked Hypertension Study...
December 6, 2016: Circulation
https://www.readbyqxmd.com/read/27919403/trace-amine-associated-receptor-1-agonists-as-narcolepsy-therapeutics
#18
Sarah W Black, Michael D Schwartz, Tsui-Ming Chen, Marius C Hoener, Thomas S Kilduff
BACKGROUND: Narcolepsy, a disorder of rapid eye movement (REM) sleep, is characterized by excessive daytime sleepiness and cataplexy, a loss of muscle tone triggered by emotional stimulation. Current narcolepsy pharmacotherapeutics include controlled substances with abuse potential or drugs with undesirable side effects. As partial agonists at trace amine-associated receptor 1 (TAAR1) promote wakefulness in mice and rats, we evaluated whether TAAR1 agonism had beneficial effects in two mouse models of narcolepsy...
October 18, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/27918982/traffic-derived-particulate-matter-exposure-and-histone-h3-modification-a-repeated-measures-study
#19
Yinan Zheng, Marco Sanchez-Guerra, Zhou Zhang, Brian T Joyce, Jia Zhong, Jacob K Kresovich, Lei Liu, Wei Zhang, Tao Gao, Dou Chang, Citlalli Osorio-Yanez, Juan Jose Carmona, Sheng Wang, John P McCracken, Xiao Zhang, Yana Chervona, Anaite Díaz, Pier A Bertazzi, Petros Koutrakis, Choong-Min Kang, Joel Schwartz, Andrea A Baccarelli, Lifang Hou
BACKGROUND: Airborne particulate matter (PM) may induce epigenetic changes that potentially lead to chronic diseases. Histone modifications regulate gene expression by influencing chromatin structure that can change gene expression status. We evaluated whether traffic-derived PM exposure is associated with four types of environmentally inducible global histone H3 modifications. METHODS: The Beijing Truck Driver Air Pollution Study included 60 truck drivers and 60 office workers examined twice, 1-2 weeks apart, for ambient PM10 (both day-of and 14-day average exposures), personal PM2...
December 2, 2016: Environmental Research
https://www.readbyqxmd.com/read/27918816/cancer-care-institutions-and-advertising-reply
#20
Lisa M Schwartz, Steven Woloshin
No abstract text is available yet for this article.
December 1, 2016: JAMA Internal Medicine
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