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https://www.readbyqxmd.com/read/28428725/tumor-biopsy-and-patient-enrollment-in-clinical-trials-for-advanced-hepatocellular-carcinoma
#1
Lorenza Rimassa, Maria Reig, Giovanni Abbadessa, Markus Peck-Radosavljevic, William Harris, Vittorina Zagonel, Davide Pastorelli, Elena Rota Caremoli, Camillo Porta, Nevena Damjanov, Hitendra Patel, Bruno Daniele, Maria Lamar, Brian Schwartz, Terri Goldberg, Armando Santoro, Jordi Bruix
Tumor biopsies may help to reliably distinguish hepatocellular carcinoma (HCC) from other tumors, mostly cholangiocarcinoma as well as to identify the patient populations who most benefit from target-driven HCC treatments, in order to improve the success rate of experimental therapies. Clarifying tumor biology may also lead to identify biomarkers with prognostic role and/or enabling to predict response or resistance to therapies. Recently, clinical trials have more efficiently included biomarker endpoints and increasingly collected tumor tissue from enrolled patients...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28422816/why-not-wait-eight-institutions-share-their-experiences-moving-united-states-medical-licensing-examination-step-1-after-core-clinical-clerkships
#2
Michelle Daniel, Amy Fleming, Colleen O'Conner Grochowski, Vicky Harnik, Sibel Klimstra, Gail Morrison, Arnyce Pock, Michael L Schwartz, Sally Santen
The majority of medical students complete the United States Medical Licensing Examination Step 1 after their foundational sciences; however, there are compelling reasons to examine this practice. This article provides the perspectives of eight MD-granting medical schools that have moved Step 1 after the core clerkships, describing their rationale, logistics of the change, outcomes, and lessons learned. The primary reasons these institutions cite for moving Step 1 after clerkships are to foster more enduring and integrated basic science learning connected to clinical care and to better prepare students for the increasingly clinical focus of Step 1...
April 18, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28422014/palliative-care-in-humanitarian-crises-always-something-to-offer
#3
Richard A Powell, Lisa Schwartz, Elysée Nouvet, Brett Sutton, Mila Petrova, Joan Marston, Daniel Munday, Lukas Radbruch
No abstract text is available yet for this article.
April 15, 2017: Lancet
https://www.readbyqxmd.com/read/28404607/interpreting-incidentally-identified-variants-in-genes-associated-with-catecholaminergic-polymorphic-ventricular-tachycardia-in-a-large-cohort-of-clinical-whole-exome-genetic-test-referrals
#4
Andrew P Landstrom, Andrew L Dailey-Schwartz, Jill A Rosenfeld, Yaping Yang, Margaret J McLean, Christina Y Miyake, Santiago O Valdes, Yuxin Fan, Hugh D Allen, Daniel J Penny, Jeffrey J Kim
BACKGROUND: The rapid expansion of genetic testing has led to increased utilization of clinical whole-exome sequencing (WES). Clinicians and genetic researchers are being faced with assessing risk of disease vulnerability from incidentally identified genetic variants which is typified by variants found in genes associated with sudden death-predisposing catecholaminergic polymorphic ventricular tachycardia (CPVT). We sought to determine whether incidentally identified variants in genes associated with CPVT from WES clinical testing represent disease-associated biomarkers...
April 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28399641/optimization-of-degradation-profile-for-new-scaffold-in-cartilage-repair
#5
Sarav S Shah, Haixiang Liang, Sandeep Pandit, Zalak Parikh, John A Schwartz, Todd Goldstein, Lawrence P Lavelle, Arindam Datta, Daniel A Grande
Objective To establish whether a novel biomaterial scaffold with tunable degradation profile will aid in cartilage repair of chondral defects versus microfracture alone in vitro and in a rat model in vivo. Design In vitro-Short- and long-term degradation scaffolds were seeded with culture expanded articular chondrocytes or bone marrow mesenchymal stem cells. Cell growth and differentiation were evaluated with cell morphological studies and gene expression studies. In vivo-A microfracture rat model was used in this study to evaluate the repair of cartilage and subchondral bone with the contralateral knee serving as the empty control...
April 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28394250/ampk-and-vacuole-associated-atg14p-orchestrate-%C3%A2%C2%B5-lipophagy-for-energy-production-and-long-term-survival-under-glucose-starvation
#6
Arnold Young Seo, Pick-Wei Lau, Daniel Feliciano, Prabuddha Sengupta, Mark A Le Gros, Bertrand Cinquin, Carolyn A Larabell, Jennifer Lippincott-Schwartz
Dietary restriction increases the longevity of many organisms but the cell signaling and organellar mechanisms underlying this capability are unclear. We demonstrate that to permit long-term survival in response to sudden glucose depletion, yeast cells activate lipid-droplet (LD) consumption through micro-lipophagy (µ-lipophagy), in which fat is metabolized as an alternative energy source. AMP-activated protein kinase (AMPK) activation triggered this pathway, which required Atg14p. More gradual glucose starvation, amino acid deprivation or rapamycin did not trigger µ-lipophagy and failed to provide the needed substitute energy source for long-term survival...
April 10, 2017: ELife
https://www.readbyqxmd.com/read/28369176/glial-calcium-waves-are-triggered-by-seizure-activity-and-not-essential-for-initiating-ictal-onset-or-neurovascular-coupling
#7
Eliza Baird-Daniel, Andy G S Daniel, Michael Wenzel, Dan Li, Jyun-You Liou, Philippe Laffont, Mingrui Zhao, Rafael Yuste, Hongtao Ma, Theodore H Schwartz
It has been postulated that glia play a critical role in modifying neuronal activity, mediating neurovascular coupling, and in seizure initiation. We investigated the role of glia in ictogenesis and neurovascular coupling through wide-field multicell and 2-photon single cell imaging of calcium and intrinsic signal imaging of cerebral blood volume in an in vivo rat model of focal neocortical seizures. Ictal events triggered a slowly propagating glial calcium wave that was markedly delayed after both neuronal and hemodynamic onset...
March 21, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28362903/schistosomal-micrornas-isolated-from-extracellular-vesicles-in-sera-of-infected-patients-a-new-tool-for-diagnosis-and-follow-up-of-human-schistosomiasis
#8
Tal Meningher, Galya Lerman, Neta Regev-Rudzki, Daniel Gold, Iddo Z Ben-Dov, Yechezkel Sidi, Dror Avni, Eli Schwartz
Background: Schistosomiasis traditionally has been diagnosed by detecting eggs in stool or urine. However, the sensitivity of these examinations is limited, especially in travelers with a low worm burden. Serologic tests have a greater sensitivity, but their results remain positive regardless of treatment and thus cannot be used for follow-up of patients. We hypothesized that detection of worm microRNAs (miRNAs) in serum can overcome the drawbacks of the existing diagnostic methods. Methods and Results: Twenty-six returning travelers with schistosomiasis (based on positive results of serologic tests or detection of ova) and 17 healthy controls were included in the study...
February 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28361881/wave-particle-energy-exchange-directly-observed-in-a-kinetic-alfv%C3%A3-n-branch-wave
#9
Daniel J Gershman, Adolfo F-Viñas, John C Dorelli, Scott A Boardsen, Levon A Avanov, Paul M Bellan, Steven J Schwartz, Benoit Lavraud, Victoria N Coffey, Michael O Chandler, Yoshifumi Saito, William R Paterson, Stephen A Fuselier, Robert E Ergun, Robert J Strangeway, Christopher T Russell, Barbara L Giles, Craig J Pollock, Roy B Torbert, James L Burch
Alfvén waves are fundamental plasma wave modes that permeate the universe. At small kinetic scales, they provide a critical mechanism for the transfer of energy between electromagnetic fields and charged particles. These waves are important not only in planetary magnetospheres, heliospheres and astrophysical systems but also in laboratory plasma experiments and fusion reactors. Through measurement of charged particles and electromagnetic fields with NASA's Magnetospheric Multiscale (MMS) mission, we utilize Earth's magnetosphere as a plasma physics laboratory...
March 31, 2017: Nature Communications
https://www.readbyqxmd.com/read/28355613/clostridium-difficile-infection-in-returning-travellers
#10
A Michal Stevens, Douglas H Esposito, Rhett J Stoney, Davidson H Hamer, Jose Flores-Figueroa, Emmanuel Bottieau, Bradley A Connor, Effrossyni Gkrania-Klotsas, Abraham Goorhuis, Noreen A Hynes, Michael Libman, Rogelio Lopez-Velez, Anne E McCarthy, Frank von Sonnenburg, Eli Schwartz, Perry J J van Genderen, L Scott Benson, Daniel T Leung
Background: There is increasing recognition of the contribution of community-acquired cases to the global burden of Clostridium difficile infection (CDI). The epidemiology of CDI among international travellers is poorly understood, and factors associated with international travel, such as antibiotic use and changes in gut microbiota, could potentially put travellers at higher risk. Methods: We summarized demographic, travel-associated and geographic characteristics of travellers with CDI in the GeoSentinel database from 1997 to 2015...
May 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28340361/hdl-inhibits-saturated-fatty-acid-mediated-augmentation-of-innate-immune-responses-in-endothelial-cells-by-a-novel-pathway
#11
Wei-Yang Zhang, Daniel A Franco, Eric Schwartz, Karen D'Souza, Sheetal Karnick, Peter D Reaven
BACKGROUND AND AIMS: Peripheral insulin resistance is associated with several metabolic abnormalities, including elevated serum fatty acids that contribute to vascular injury and atherogenesis. Our goals were to examine whether saturated fatty acids can modify innate immune responses to subclinical concentrations of lipopolysaccharide (LPS) in endothelial cells, and to explore the underlying pathway and determine whether it is modified by high density lipoprotein (HDL) and other factors commonly altered in insulin resistance...
April 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28329274/trichinella-nativa-outbreak-with-rare-thrombotic-complications-associated-with-meat-from-a-black-bear-hunted-in-northern-ontario
#12
Daniel Dalcin, Dante S Zarlenga, Nicholas C Larter, Eric Hoberg, Daniel A Boucher, Samuel Merrifield, Rachel Lau, Filip Ralevski, Karamjit Cheema, Kevin L Schwartz, Andrea K Boggild
Background: Although trichinellosis is known to cause thrombotic disease, serious thrombotic events are rare and have not been previously associated with Trichinella nativa infection. Methods: Patient interviews and medical chart reviews were conducted on 10 men who became ill following consumption of a common source of black bear meat. Trichinella serology on patient sera as well as PCR and larval identification of the meat samples was conducted. Results: All 10 exposed individuals developed an acute illness clinically compatible with trichinellosis, characterized by fever, abdominal pain, and diarrhea, along with eosinophilia ranging from 0...
February 22, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28297712/cd32a-is-a-marker-of-a-cd4-t-cell-hiv-reservoir-harbouring-replication-competent-proviruses
#13
Benjamin Descours, Gaël Petitjean, José-Luis López-Zaragoza, Timothée Bruel, Raoul Raffel, Christina Psomas, Jacques Reynes, Christine Lacabaratz, Yves Levy, Olivier Schwartz, Jean Daniel Lelievre, Monsef Benkirane
The persistence of the HIV reservoir in infected individuals is a major obstacle to the development of a cure for HIV. Here, using an in vitro model of HIV-infected quiescent CD4 T cells, we reveal a gene expression signature of 103 upregulated genes that are specific for latently infected cells, including genes for 16 transmembrane proteins. In vitro screening for surface expression in HIV-infected quiescent CD4 T cells shows that the low-affinity receptor for the immunoglobulin G Fc fragment, CD32a, is the most highly induced, with no detectable expression in bystander cells...
March 15, 2017: Nature
https://www.readbyqxmd.com/read/28274620/partial-nephrectomy-is-associated-with-higher-risk-of-relapse-compared-with-radical-nephrectomy-for-clinical-stage-t1-renal-cell-carcinoma-pathologically-upstaged-to-t3a
#14
Paras H Shah, Daniel M Moreira, Vinay R Patel, Geoffrey Gaunay, Arvin K George, Manaf Alom, Zachary Kozel, Oksana Yaskiv, Simon J Hall, Michael J Schwartz, Manish A Vira, Lee Richstone, Louis R Kavoussi
PURPOSE: We aimed to study recurrence-free survival after partial versus radical nephrectomy for clinical stage T1 renal cell carcinoma among all comers and those upstaged to pathologic stage T3a. MATERIALS AND METHODS: A retrospective review of 1250 patients undergoing partial nephrectomy or radical nephrectomy for clinically localized T1 renal cell carcinoma between 2006 and 2014 was performed. Recurrence-free survival was estimated using the Kaplan-Meier method and evaluated as a function of nephrectomy type with log-rank test and Cox models adjusting for clinical, radiological, and pathological characteristics...
March 5, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28265883/erratum-to-use-of-compressive-osseointegration-endoprostheses-for-massive-bone-loss-from-tumor-and-failed-arthroplasty-a-viable-option-in-the-upper-extremity
#15
Krista A Goulding, Adam Schwartz, Steven J Hattrup, R Lor Randall, Donald Lee, Damian M Rispoli, Daniel M Lerman, Christopher Beauchamp
No abstract text is available yet for this article.
March 6, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28254862/advances-in-the-classification-and-treatment-of-mastocytosis-current-status-and-outlook-toward-the-future
#16
REVIEW
Peter Valent, Cem Akin, Karin Hartmann, Gunnar Nilsson, Andreas Reiter, Olivier Hermine, Karl Sotlar, Wolfgang R Sperr, Luis Escribano, Tracy I George, Hanneke C Kluin-Nelemans, Celalettin Ustun, Massimo Triggiani, Knut Brockow, Jason Gotlib, Alberto Orfao, Lawrence B Schwartz, Sigurd Broesby-Olsen, Carsten Bindslev-Jensen, Petri T Kovanen, Stephen J Galli, K Frank Austen, Daniel A Arber, Hans-Peter Horny, Michel Arock, Dean D Metcalfe
Mastocytosis is a term used to denote a heterogeneous group of conditions defined by the expansion and accumulation of clonal (neoplastic) tissue mast cells in various organs. The classification of the World Health Organization (WHO) divides the disease into cutaneous mastocytosis, systemic mastocytosis, and localized mast cell tumors. On the basis of histomorphologic criteria, clinical parameters, and organ involvement, systemic mastocytosis is further divided into indolent systemic mastocytosis and advanced systemic mastocytosis variants, including aggressive systemic mastocytosis and mast cell leukemia...
March 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28251167/myocardial-bridge-and-acute-plaque-rupture
#17
Leor Perl, David Daniels, Jonathan Schwartz, Shige Tanaka, Alan Yeung, Jennifer A Tremmel, Ingela Schnittger
A myocardial bridge (MB) is a common anatomic variant, most frequently located in the left anterior descending coronary artery, where a portion of the coronary artery is covered by myocardium. Importantly, MBs are known to result in a proximal atherosclerotic lesion. It has recently been postulated that these lesions predispose patients to acute coronary events, even in cases of otherwise low-risk patients. One such mechanism may involve acute plaque rupture. In this article, we report 2 cases of patients with MBs who presented with acute coronary syndromes despite having low cardiovascular risk...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28246237/cardiac-outcomes-after-ischemic-stroke-or-tia-effects-of-pioglitazone-in-patients-with-insulin-resistance-without-diabetes
#18
Lawrence H Young, Catherine M Viscoli, Jeptha P Curtis, Silvio E Inzucchi, Gregory G Schwartz, Anne M Lovejoy, Karen L Furie, Mark J Gorman, Robin A Conwit, J Dawn Abbott, Daniel L Jacoby, Daniel M Kolansky, Steven E Pfau, Frederick S Ling, Walter N Kernan
Background -Insulin resistance is highly prevalent among patients with atherosclerosis and is associated with an increased risk for myocardial infarction (MI) and stroke. The Insulin Resistance Intervention after Stroke (IRIS) trial demonstrated that pioglitazone decreased the composite risk for fatal or non-fatal stroke and MI in patients with insulin resistance without diabetes, after a recent ischemic stroke or transient ischemic attack. The type and severity of cardiac events in this population, and the impact of pioglitazone on these events has not been described...
February 28, 2017: Circulation
https://www.readbyqxmd.com/read/28241208/association-between-telomere-length-and-risk-of-cancer-and-non-neoplastic-diseases-a-mendelian-randomization-study
#19
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/28225462/validity-evidence-from-ratings-of-pediatric-interns-and-subinterns-on-a-subset-of-pediatric-milestones
#20
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
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