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https://www.readbyqxmd.com/read/28241267/promoting-appropriate-use-of-cardiac-imaging-no-longer-an-academic-exercise
#1
Rami Doukky, Gretchen Diemer, Andria Medina, David E Winchester, Venkatesh L Murthy, Lawrence M Phillips, Kathleen Flood, Linda Giering, Georgia Hearn, Ronald G Schwartz, Raymond Russell, David Wolinsky
No abstract text is available yet for this article.
February 28, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28241231/effect-of-testosterone-treatment-on-volumetric-bone-density-and-strength-in-older-men-with-low-testosterone-a-controlled-clinical-trial
#2
Peter J Snyder, David L Kopperdahl, Alisa J Stephens-Shields, Susan S Ellenberg, Jane A Cauley, Kristine E Ensrud, Cora E Lewis, Elizabeth Barrett-Connor, Ann V Schwartz, David C Lee, Shalender Bhasin, Glenn R Cunningham, Thomas M Gill, Alvin M Matsumoto, Ronald S Swerdloff, Shehzad Basaria, Susan J Diem, Christina Wang, Xiaoling Hou, Denise Cifelli, Darlene Dougar, Bret Zeldow, Douglas C Bauer, Tony M Keaveny
Importance: As men age, they experience decreased serum testosterone concentrations, decreased bone mineral density (BMD), and increased risk of fracture. Objective: To determine whether testosterone treatment of older men with low testosterone increases volumetric BMD (vBMD) and estimated bone strength. Design, Setting, and Participants: Placebo-controlled, double-blind trial with treatment allocation by minimization at 9 US academic medical centers of men 65 years or older with 2 testosterone concentrations averaging less than 275 ng/L participating in the Testosterone Trials from December 2011 to June 2014...
February 21, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28241208/association-between-telomere-length-and-risk-of-cancer-and-non-neoplastic-diseases-a-mendelian-randomization-study
#3
Philip C Haycock, Stephen Burgess, Aayah Nounu, Jie Zheng, George N Okoli, Jack Bowden, Kaitlin Hazel Wade, Nicholas J Timpson, David M Evans, Peter Willeit, Abraham Aviv, Tom R Gaunt, Gibran Hemani, Massimo Mangino, Hayley Patricia Ellis, Kathreena M Kurian, Karen A Pooley, Rosalind A Eeles, Jeffrey E Lee, Shenying Fang, Wei V Chen, Matthew H Law, Lisa M Bowdler, Mark M Iles, Qiong Yang, Bradford B Worrall, Hugh Stephen Markus, Rayjean J Hung, Chris I Amos, Amanda B Spurdle, Deborah J Thompson, Tracy A O'Mara, Brian Wolpin, Laufey Amundadottir, Rachael Stolzenberg-Solomon, Antonia Trichopoulou, N Charlotte Onland-Moret, Eiliv Lund, Eric J Duell, Federico Canzian, Gianluca Severi, Kim Overvad, Marc J Gunter, Rosario Tumino, Ulrika Svenson, Andre van Rij, Annette F Baas, Matthew J Bown, Nilesh J Samani, Femke N G van t'Hof, Gerard Tromp, Gregory T Jones, Helena Kuivaniemi, James R Elmore, Mattias Johansson, James Mckay, Ghislaine Scelo, Robert Carreras-Torres, Valerie Gaborieau, Paul Brennan, Paige M Bracci, Rachel E Neale, Sara H Olson, Steven Gallinger, Donghui Li, Gloria M Petersen, Harvey A Risch, Alison P Klein, Jiali Han, Christian C Abnet, Neal D Freedman, Philip R Taylor, John M Maris, Katja K Aben, Lambertus A Kiemeney, Sita H Vermeulen, John K Wiencke, Kyle M Walsh, Margaret Wrensch, Terri Rice, Clare Turnbull, Kevin Litchfield, Lavinia Paternoster, Marie Standl, Gonçalo R Abecasis, John Paul SanGiovanni, Yong Li, Vladan Mijatovic, Yadav Sapkota, Siew-Kee Low, Krina T Zondervan, Grant W Montgomery, Dale R Nyholt, David A van Heel, Karen Hunt, Dan E Arking, Foram N Ashar, Nona Sotoodehnia, Daniel Woo, Jonathan Rosand, Mary E Comeau, W Mark Brown, Edwin K Silverman, John E Hokanson, Michael H Cho, Jennie Hui, Manuel A Ferreira, Philip J Thompson, Alanna C Morrison, Janine F Felix, Nicholas L Smith, Angela M Christiano, Lynn Petukhova, Regina C Betz, Xing Fan, Xuejun Zhang, Caihong Zhu, Carl D Langefeld, Susan D Thompson, Feijie Wang, Xu Lin, David A Schwartz, Tasha Fingerlin, Jerome I Rotter, Mary Frances Cotch, Richard A Jensen, Matthias Munz, Henrik Dommisch, Arne S Schaefer, Fang Han, Hanna M Ollila, Ryan P Hillary, Omar Albagha, Stuart H Ralston, Chenjie Zeng, Wei Zheng, Xiao-Ou Shu, Andre Reis, Steffen Uebe, Ulrike Hüffmeier, Yoshiya Kawamura, Takeshi Otowa, Tsukasa Sasaki, Martin Lloyd Hibberd, Sonia Davila, Gang Xie, Katherine Siminovitch, Jin-Xin Bei, Yi-Xin Zeng, Asta Försti, Bowang Chen, Stefano Landi, Andre Franke, Annegret Fischer, David Ellinghaus, Carlos Flores, Imre Noth, Shwu-Fan Ma, Jia Nee Foo, Jianjun Liu, Jong-Won Kim, David G Cox, Olivier Delattre, Olivier Mirabeau, Christine F Skibola, Clara S Tang, Merce Garcia-Barcelo, Kai-Ping Chang, Wen-Hui Su, Yu-Sun Chang, Nicholas G Martin, Scott Gordon, Tracey D Wade, Chaeyoung Lee, Michiaki Kubo, Pei-Chieng Cha, Yusuke Nakamura, Daniel Levy, Masayuki Kimura, Shih-Jen Hwang, Steven Hunt, Tim Spector, Nicole Soranzo, Ani W Manichaikul, R Graham Barr, Bratati Kahali, Elizabeth Speliotes, Laura M Yerges-Armstrong, Ching-Yu Cheng, Jost B Jonas, Tien Yin Wong, Isabella Fogh, Kuang Lin, John F Powell, Kenneth Rice, Caroline L Relton, Richard M Martin, George Davey Smith
Importance: The causal direction and magnitude of the association between telomere length and incidence of cancer and non-neoplastic diseases is uncertain owing to the susceptibility of observational studies to confounding and reverse causation. Objective: To conduct a Mendelian randomization study, using germline genetic variants as instrumental variables, to appraise the causal relevance of telomere length for risk of cancer and non-neoplastic diseases. Data Sources: Genomewide association studies (GWAS) published up to January 15, 2015...
February 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28240679/in-vitro-and-in-vivo-combined-effect-of-arq-092-an-akt-inhibitor-with-arq-087-a-fgfr-inhibitor
#4
Yi Yu, Terence Hall, Sudharshan Eathiraj, Michael J Wick, Brian Schwartz, Giovanni Abbadessa
The PI3K/AKT pathway plays an important role in the initiation and progression of cancer, and the drug development efforts targeting this pathway with therapeutic interventions have been advanced by academic and industrial groups. However, the clinical outcome is moderate. Combination of inhibition of PI3K/AKT and other targeted agents became a feasible approach. In this study we assessed the combined effect of ARQ 092, a pan-AKT inhibitor, and ARQ 087, a pan-FGFR inhibitor, in vitro and in vivo. In a panel of 45 cancer cell lines, on 24% (11 out of 45) the compounds showed synergistic effect, on 62% (28 out of 45) additive, and on 13% (6 out of 45) antagonistic...
February 24, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28239164/adipocyte-c1qtnf5-expression-is-bmi-dependently-related-to-early-adipose-tissue-dysfunction-and-systemic-ctrp5-serum-levels-in-obese-children
#5
J T Schwartze, K Landgraf, U Spielau, D Rockstroh, D Löffler, J Kratzsch, W Kiess, A Körner
BACKGROUND/OBJECTIVES: The recently identified adipocytokine C1QTNF5 (encodes for CTRP5) has been demonstrated to inhibit pro-metabolic insulin signaling in adipocytes. We hypothesized that adipocyte C1QTNF5 expression in subcutaneous (sc) adipose tissue (AT) would correlate with the degree of obesity, systemic CTRP5 serum levels, and early AT and metabolic dysfunction in children. SUBJECTS/METHODS: Sc AT samples were obtained from 33 healthy Caucasian lean children aged 10...
February 27, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28238606/comparison-of-associations-of-dxa-and-ct-visceral-adipose-tissue-measures-with-insulin-resistance-lipid-levels-and-inflammatory-markers
#6
John T Schousboe, Lisa Langsetmo, Ann V Schwartz, Brent C Taylor, Tien N Vo, Allyson M Kats, Elizabeth Barrett-Connor, Eric S Orwoll, Lynn M Marshall, Iva Miljkovic, Nancy E Lane, Kristine E Ensrud
Visceral adipose tissue (VAT) measured by computed tomography (CT) is related to insulin resistance, lipids, and serum inflammatory markers. Our objective was to compare the strength of the associations of VAT measured using dual-energy X-ray absorptiometry (DXA-VAT) and CT (CT-VAT) with insulin resistance, serum lipids, and serum markers of inflammation. For 1117 men aged 65 and older enrolled in the Osteoporotic Fractures in Men Study, the cross-sectional associations of DXA-VAT and CT-VAT with homeostasis model assessment of insulin resistance (homa2ir), C-reactive protein, and high-density lipoprotein (HDL) cholesterol were estimated with regression models and compared using a Hausman test...
February 23, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28237198/patient-versus-physician-valuation-of-durable-survival-gains-implications-for-value-framework-assessments
#7
Jason Shafrin, Taylor T Schwartz, Tony Okoro, John A Romley
BACKGROUND: Previous research indicates that patients value therapies that provide durable or tail-of-the-curve survival gains, but it is unclear whether physicians share these preferences. OBJECTIVE: To compare patient and physician preferences for treatments with a positive probability of durable survival gains relative to those with fixed survival gains. METHODS: Patients with advanced stage melanoma or lung cancer and the oncologists who treated these patients were surveyed...
February 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28236348/fixed-time-interval-compared-with-on-demand-oral-analgesia-protocols-for-post-caesarean-pain-a-randomised-controlled-trial
#8
E Yefet, H Taha, R Salim, J Hasanein, Y Carmeli, N Schwartz, Z Nachum
OBJECTIVES: To compare the efficacy, safety and satisfaction from two modes of oral analgesia administration for the treatment of post-caesarean pain in the first 48 h following surgery: on-demand versus fixed time interval administration. DESIGN: Open label parallel-group, randomised-controlled trial from February to December 2013. SETTING: University-affiliated hospital in Israel. POPULATION: Two-hundred women who underwent caesarean delivery with regional anaesthesia...
February 25, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28230752/impact-of-particulate-matter-exposure-and-surrounding-greenness-on-chronic-absenteeism-in-massachusetts-public-schools
#9
Piers MacNaughton, Erika Eitland, Itai Kloog, Joel Schwartz, Joseph Allen
Chronic absenteeism is associated with poorer academic performance and higher attrition in kindergarten to 12th grade (K-12) schools. In prior research, students who were chronically absent generally had fewer employment opportunities and worse health after graduation. We examined the impact that environmental factors surrounding schools have on chronic absenteeism. We estimated the greenness (Normalized Difference Vegetation Index (NDVI)) and fine particulate matter air pollution (PM2.5) within 250 m and 1000 m respectively of each public school in Massachusetts during the 2012-2013 academic year using satellite-based data...
20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28229899/genetic-testing-helps-to-confirm-the-diagnosis-and-initiate-appropriate-treatment-a-case-of-liddle%C3%A2-syndrome
#10
EDITORIAL
Pavel N Pichurin, Garry L Schwartz
No abstract text is available yet for this article.
January 25, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28229539/appetite-self-regulation-environmental-and-policy-influences-on-eating-behaviors
#11
Marlene B Schwartz, David R Just, Jamie F Chriqui, Alice S Ammerman
OBJECTIVE: Appetite regulation is influenced by the environment, and the environment is shaped by food-related policies. This review summarizes the environment and policy research portion of an NIH Workshop (Bethesda, MD, 2015) titled "Self-Regulation of Appetite-It's Complicated." METHODS: In this paper, we begin by making the case for why policy is an important tool in efforts to improve nutrition, and we introduce an ecological framework that illustrates the multiple layers that influence what people eat...
March 2017: Obesity
https://www.readbyqxmd.com/read/28229067/the-effect-of-world-trade-center-exposure-on-the-timing-of-diagnoses-of-obstructive-airway-disease-chronic-rhinosinusitis-and-gastroesophageal-reflux-disease
#12
Xiaoxue Liu, Jennifer Yip, Rachel Zeig-Owens, Jessica Weakley, Mayris P Webber, Theresa M Schwartz, David J Prezant, Michael D Weiden, Charles B Hall
OBJECTIVES: In a cohort of rescue/recovery workers exposed to the dust that resulted from the collapse of the World Trade Center (WTC), we assessed how a diagnosis of obstructive airways disease (OAD) affected the likelihood of a subsequent diagnosis of chronic rhinosinusitis (CRS) or gastroesophageal reflux disease (GERD). We also assessed whether OAD acted as a mediator of the association between exposure to the WTC rescue/recovery effort and CRS and GERD diagnoses. METHODS: In this prospective cohort study, we analyzed Fire Department of the City of New York physician diagnoses of OAD, CRS, and GERD that were first documented between September 11, 2001, and September 10, 2011, among 8,968 WTC-exposed firefighters...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28228551/cysteine-residues-in-a-yeast-viral-a-b-toxin-crucially-control-host-cell-killing-via-ph-triggered-disulfide-rearrangements
#13
Yutaka Suzuki, Sara L Schwartz, Nina C Mueller, Manfred J Schmitt
K28 is a viral A/B protein toxin that intoxicates yeast and fungal cells by endocytosis and retrograde transport to the endoplasmic reticulum (ER). While toxin translocation into the cytosol occurs on the oxidized α/β heterodimer, the precise mechanism of how the toxin crosses the ER membrane is unknown. Here we identified pH-triggered toxin-intrinsic thiol rearrangements that crucially control toxin conformation and host cell killing. In the natural habitat and low pH environment of toxin-secreting killer yeasts, K28 is structurally stable and biologically active as disulfide-bonded heterodimer while it forms inactive disulfide-bonded oligomers at neutral pH that are caused by activation and thiol deprotonation of β-subunit cysteines...
February 22, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28228420/body-composition-changes-in-the-comprehensive-assessment-of-long-term-effects-of-reducing-intake-of-energy-calerie-2-study-a-2-y-randomized-controlled-trial-of-calorie-restriction-in-nonobese-humans
#14
Sai Krupa Das, Susan B Roberts, Manjushri V Bhapkar, Dennis T Villareal, Luigi Fontana, Corby K Martin, Susan B Racette, Paul J Fuss, William E Kraus, William W Wong, Edward Saltzman, Carl F Pieper, Roger A Fielding, Ann V Schwartz, Eric Ravussin, Leanne M Redman
Background: Calorie restriction (CR) retards aging and increases longevity in many animal models. However, it is unclear whether CR can be implemented in humans without adverse effects on body composition.Objective: We evaluated the effect of a 2-y CR regimen on body composition including the influence of sex and body mass index (BMI; in kg/m(2)) among participants enrolled in CALERIE-2 (Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy), a multicenter, randomized controlled trial.Design: Participants were 218 nonobese (BMI: 21...
February 22, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28228284/respiratory-syncytial-virus-infects-regulatory-b-cells-in-human-neonates-via-chemokine-receptor-cx3cr1-and-promotes-lung-disease-severity
#15
Dania Zhivaki, Sébastien Lemoine, Annick Lim, Ahsen Morva, Pierre-Olivier Vidalain, Liliane Schandene, Nicoletta Casartelli, Marie-Anne Rameix-Welti, Pierre-Louis Hervé, Edith Dériaud, Benoit Beitz, Maryline Ripaux-Lefevre, Jordi Miatello, Brigitte Lemercier, Valerie Lorin, Delphyne Descamps, Jenna Fix, Jean-François Eléouët, Sabine Riffault, Olivier Schwartz, Fabrice Porcheray, Françoise Mascart, Hugo Mouquet, Xiaoming Zhang, Pierre Tissières, Richard Lo-Man
Respiratory syncytial virus (RSV) is the major cause of lower respiratory tract infections in infants and is characterized by pulmonary infiltration of B cells in fatal cases. We analyzed the B cell compartment in human newborns and identified a population of neonatal regulatory B lymphocytes (nBreg cells) that produced interleukin 10 (IL-10) in response to RSV infection. The polyreactive B cell receptor of nBreg cells interacted with RSV protein F and induced upregulation of chemokine receptor CX3CR1. CX3CR1 interacted with RSV glycoprotein G, leading to nBreg cell infection and IL-10 production that dampened T helper 1 (Th1) cytokine production...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28226808/idle-state-classification-using-spiking-activity-and-local-field-potentials-in-a-brain-computer-interface
#16
Jordan J Williams, Rex N Tien, Yoh Inoue, Andrew B Schwartz, Jordan J Williams, Rex N Tien, Yoh Inoue, Andrew B Schwartz, Rex N Tien, Andrew B Schwartz, Jordan J Williams, Yoh Inoue
Previous studies of intracortical brain-computer interfaces (BCIs) have often focused on or compared the use of spiking activity and local field potentials (LFPs) for decoding kinematic movement parameters. Conversely, using these signals to detect the initial intention to use a neuroprosthetic device or not has remained a relatively understudied problem. In this study, we examined the relative performance of spiking activity and LFP signals in detecting discrete state changes in attention regarding a user's desire to actively control a BCI device...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226596/quantification-of-neural-functional-connectivity-during-an-active-avoidance-task
#17
Catia S Silva, Mehrnaz K Hazrati, Andreas Keil, Jose C Principe, Catia S Silva, Mehrnaz K Hazrati, Andreas Keil, Jose C Principe, Andreas Keil, Jose C Principe, Mehrnaz K Hazrati, Catia S Silva
Many behavioral and cognitive processes are associated with spatiotemporal dynamic communication between brain areas. Thus, the quantification of functional connectivity with high temporal resolution is highly desirable for capturing in vivo brain function. However, brain functional network quantification from EEG recordings has been commonly used in a qualitative manner. In this paper, we consider pairwise dependence measures as random variables and estimate the pdf for each electrode of the arrangement. A metric imposed by the quadratic Cauchy-Schwartz Mutual Information quantifies these pdfs...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225684/assessing-the-risks-associated-with-mri-in-patients-with-a-pacemaker-or-defibrillator
#18
Robert J Russo, Heather S Costa, Patricia D Silva, Jeffrey L Anderson, Aysha Arshad, Robert W W Biederman, Noel G Boyle, Jennifer V Frabizzio, Ulrika Birgersdotter-Green, Steven L Higgins, Rachel Lampert, Christian E Machado, Edward T Martin, Andrew L Rivard, Jason C Rubenstein, Raymond H M Schaerf, Jennifer D Schwartz, Dipan J Shah, Gery F Tomassoni, Gail T Tominaga, Allison E Tonkin, Seth Uretsky, Steven D Wolff
Background The presence of a cardiovascular implantable electronic device has long been a contraindication for the performance of magnetic resonance imaging (MRI). We established a prospective registry to determine the risks associated with MRI at a magnetic field strength of 1.5 tesla for patients who had a pacemaker or implantable cardioverter-defibrillator (ICD) that was "non-MRI-conditional" (i.e., not approved by the Food and Drug Administration for MRI scanning). Methods Patients in the registry were referred for clinically indicated nonthoracic MRI at a field strength of 1...
23, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28225462/validity-evidence-from-ratings-of-pediatric-interns-and-subinterns-on-a-subset-of-pediatric-milestones
#19
Teri L Turner, Vasudha L Bhavaraju, Ulana A Luciw-Dubas, Patricia J Hicks, Sara Multerer, Amanda Osta, Jennifer McDonnell, Sue Poynter, Daniel J Schumacher, Rebecca Tenney-Soeiro, Linda Waggoner-Fountain, Alan Schwartz
PURPOSE: To investigate evidence for validity of faculty members' pediatric milestone (PM) ratings of interns (first-year residents) and subinterns (fourth-year medical students) on nine subcompetencies related to readiness to serve as a pediatric intern in the inpatient setting. METHOD: The Association of Pediatric Program Directors Longitudinal Educational Assessment Research Network (APPD LEARN) and the National Board of Medical Examiners collaborated to investigate the utility of assessments of the PMs for trainees' performance...
February 21, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28225374/characterizing-the-toxicity-and-dose-effect-profile-of-tramadol-ingestions-in-children
#20
Gina L Stassinos, Lawrence Gonzales, Wendy Klein-Schwartz
OBJECTIVES: Tramadol can cause life-threatening toxicity in overdose; however, data on its toxicity in children are lacking. This study investigates toxicity associated with tramadol ingestions in children. The hypothesis is that children will experience dose-related central nervous system and respiratory depression and seizures. METHODS: A retrospective evaluation of cases from the National Poison Center Data System between January 1, 2000, and December 31, 2013, was performed...
February 21, 2017: Pediatric Emergency Care
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