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daniel schwartz

Daniel S Roberts, Steve Otto, Brian Chen, Kevin A Peng, Marc S Schwartz, Derald E Brackmann, John W House
OBJECTIVE: To evaluate whether an auditory brainstem implant (ABI) can impact levels of tinnitus in neurofibromatosis type-2 (NF2) patients who have undergone translabyrinthine craniotomy for vestibular schwannoma (VS) removal and to evaluate the burden of tinnitus in these patients. STUDY DESIGN: A retrospective case series and patient survey. SETTING: Tertiary neurotologic referral center. PATIENTS: NF2 patients who underwent translabyrinthine removal of VS and ABI placement between 1994 and 2015...
October 12, 2016: Otology & Neurotology
Sarah E Dunn, Nadine J Kaslow, Daniel Cucco, Ann C Schwartz
No abstract text is available yet for this article.
August 30, 2016: Psychosomatics
Brian H Chen, Riccardo E Marioni, Elena Colicino, Marjolein J Peters, Cavin K Ward-Caviness, Pei-Chien Tsai, Nicholas S Roetker, Allan C Just, Ellen W Demerath, Weihua Guan, Jan Bressler, Myriam Fornage, Stephanie Studenski, Amy R Vandiver, Ann Zenobia Moore, Toshiko Tanaka, Douglas P Kiel, Liming Liang, Pantel Vokonas, Joel Schwartz, Kathryn L Lunetta, Joanne M Murabito, Stefania Bandinelli, Dena G Hernandez, David Melzer, Michael Nalls, Luke C Pilling, Timothy R Price, Andrew B Singleton, Christian Gieger, Rolf Holle, Anja Kretschmer, Florian Kronenberg, Sonja Kunze, Jakob Linseisen, Christine Meisinger, Wolfgang Rathmann, Melanie Waldenberger, Peter M Visscher, Sonia Shah, Naomi R Wray, Allan F McRae, Oscar H Franco, Albert Hofman, André G Uitterlinden, Devin Absher, Themistocles Assimes, Morgan E Levine, Ake T Lu, Philip S Tsao, Lifang Hou, JoAnn E Manson, Cara L Carty, Andrea Z LaCroix, Alexander P Reiner, Tim D Spector, Andrew P Feinberg, Daniel Levy, Andrea Baccarelli, Joyce van Meurs, Jordana T Bell, Annette Peters, Ian J Deary, James S Pankow, Luigi Ferrucci, Steve Horvath
Estimates of biological age based on DNA methylation patterns, often referred to as "epigenetic age", "DNAm age", have been shown to be robust biomarkers of age in humans. We previously demonstrated that independent of chronological age, epigenetic age assessed in blood predicted all-cause mortality in four human cohorts. Here, we expanded our original observation to 13 different cohorts for a total sample size of 13,089 individuals, including three racial/ethnic groups. In addition, we examined whether incorporating information on blood cell composition into the epigenetic age metrics improves their predictive power for mortality...
September 28, 2016: Aging
Jon H Monserud, Katherine M Macri, Daniel K Schwartz
DNA is increasingly used to engineer dynamic nanoscale circuits, structures, and motors, many of which rely on DNA strand-displacement reactions. The use of functional DNA sequences (e.g., aptamers, which bind to a wide range of ligands) in these reactions would potentially confer responsiveness on such devices, and integrate DNA computation with highly varied molecular stimuli. By using high-throughput single-molecule FRET methods, we compared the kinetics of a putative aptamer-ligand and aptamer-complement strand-displacement reaction...
October 24, 2016: Angewandte Chemie
Corrado Cancedda, Sheila M Davis, Kerry L Dierberg, Jonathan Lascher, J Daniel Kelly, Mohammed Bailor Barrie, Alimamy Philip Koroma, Peter George, Adikali Alpha Kamara, Ronald Marsh, Manso S Sumbuya, Cameron T Nutt, Kirstin W Scott, Edgar Thomas, Katherine Bollbach, Andrew Sesay, Ahmidu Barrie, Elizabeth Barrera, Kathryn Barron, John Welch, Nahid Bhadelia, Raphael G Frankfurter, Ophelia M Dahl, Sarthak Das, Rebecca E Rollins, Bryan Eustis, Amanda Schwartz, Piero Pertile, Ilias Pavlopoulos, Allan Mayfield, Regan H Marsh, Yusupha Dibba, Danielle Kloepper, Andrew Hall, Karin Huster, Michael Grady, Kimberly Spray, David A Walton, Fodei Daboh, Cora Nally, Sahr James, Gabriel S Warren, Joyce Chang, Michael Drasher, Gina Lamin, Sherry Bangura, Ann C Miller, Annie P Michaelis, Ryan McBain, M Jana Broadhurst, Megan Murray, Eugene T Richardson, Ted Philip, Gary L Gottlieb, Joia S Mukherjee, Paul E Farmer
An epidemic of Ebola virus disease (EVD) beginning in 2013 has claimed an estimated 11 310 lives in West Africa. As the EVD epidemic subsides, it is important for all who participated in the emergency Ebola response to reflect on strengths and weaknesses of the response. Such reflections should take into account perspectives not usually included in peer-reviewed publications and after-action reports, including those from the public sector, nongovernmental organizations (NGOs), survivors of Ebola, and Ebola-affected households and communities...
October 15, 2016: Journal of Infectious Diseases
Andrew T Wong, Justin Rineer, David Schwartz, Daniel Becker, Joseph Safdieh, Virginia Osborn, David Schreiber
BACKGROUND: The optimal timing of thoracic radiation therapy (RT) in relation to chemotherapy is unknown in the treatment of nonmetastatic small cell lung cancer (SCLC). We analyzed the National Cancer Data Base (NCDB) to assess the effect on overall survival (OS) of RT timing with chemotherapy for patients with SCLC. MATERIALS AND METHODS: The NCDB was queried for patients diagnosed with nonmetastatic SCLC from 1998 to 2011 who had undergone definitive chemoradiation...
August 8, 2016: Clinical Lung Cancer
M Elizabeth Fini, Stephen G Schwartz, Xiaoyi Gao, Shinwu Jeong, Nitin Patel, Tatsuo Itakura, Marianne O Price, Francis W Price, Rohit Varma, W Daniel Stamer
Elevation of intraocular pressure (IOP) due to therapeutic use of glucocorticoids is called steroid-induced ocular hypertension (SIOH); this can lead to steroid-induced glaucoma (SIG). Glucocorticoids initiate signaling cascades ultimately affecting expression of hundreds of genes; this provides the potential for a highly personalized pharmacological response. Studies attempting to define genetic risk factors were undertaken early in the history of glucocorticoid use, however scientific tools available at that time were limited and progress stalled...
September 22, 2016: Progress in Retinal and Eye Research
Frederik Giesel, Florian Schneider, Clemens Kratochwil, Daniel Rath, Tim Holland-Letz, Jan Moltz, Hans-Ulrich Kauczor, Lawrence Schwartz, Uwe Haberkorn, Paul Flechsig
: In patients with lung cancer (LC), malignant melanoma (MM), gastroenteropancreatic neuroendocrine tumours (GEP-NETs) and prostate cancer (PCA), N-staging is often performed by integrated (18)F-FDG-Positron Emission Tomography/Computed Tomography (PET/CT) (LC, MM), (68)Ga-DOTATOC-PET/CT (GEP-NET) and (68)Ga-PSMA-PET/CT (PCA): N-staging is not always accurate due to indeterminate PET-findings. To better evaluate malignant lymph node (LN) infiltration, additional surrogate parameters, especially in cases with indeterminate PET-findings, would be helpful...
September 22, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Roby Joehanes, Allan C Just, Riccardo E Marioni, Luke C Pilling, Lindsay M Reynolds, Pooja R Mandaviya, Weihua Guan, Tao Xu, Cathy E Elks, Stella Aslibekyan, Hortensia Moreno-Macias, Jennifer A Smith, Jennifer A Brody, Radhika Dhingra, Paul Yousefi, James S Pankow, Sonja Kunze, Sonia Shah, Allan F McRae, Kurt Lohman, Jin Sha, Devin M Absher, Luigi Ferrucci, Wei Zhao, Ellen W Demerath, Jan Bressler, Megan L Grove, Tianxiao Huan, Chunyu Liu, Michael M Mendelson, Chen Yao, Douglas P Kiel, Annette Peters, Rui Wang-Sattler, Peter M Visscher, Naomi R Wray, John M Starr, Jingzhong Ding, Carlos J Rodriguez, Nicholas J Wareham, Marguerite R Irvin, Degui Zhi, Myrto Barrdahl, Paolo Vineis, Srikant Ambatipudi, André G Uitterlinden, Albert Hofman, Joel Schwartz, Elena Colicino, Lifang Hou, Pantel S Vokonas, Dena G Hernandez, Andrew B Singleton, Stefania Bandinelli, Stephen T Turner, Erin B Ware, Alicia K Smith, Torsten Klengel, Elisabeth B Binder, Bruce M Psaty, Kent D Taylor, Sina A Gharib, Brenton R Swenson, Liming Liang, Dawn L DeMeo, George T O'Connor, Zdenko Herceg, Kerry J Ressler, Karen N Conneely, Nona Sotoodehnia, Sharon L R Kardia, David Melzer, Andrea A Baccarelli, Joyce B J van Meurs, Isabelle Romieu, Donna K Arnett, Ken K Ong, Yongmei Liu, Melanie Waldenberger, Ian J Deary, Myriam Fornage, Daniel Levy, Stephanie J London
BACKGROUND: -DNA methylation leaves a long-term signature of smoking exposure and is one potential mechanism by which tobacco exposure predisposes to adverse health outcomes, such as cancers, osteoporosis, lung, and cardiovascular disorders. METHODS AND RESULTS: -To comprehensively determine the association between cigarette smoking and DNA methylation, we conducted a meta-analysis of genome-wide DNA methylation assessed using the Illumina BeadChip 450K array on 15,907 blood derived DNA samples from participants in 16 cohorts (including 2,433 current, 6,518 former, and 6,956 never smokers)...
September 20, 2016: Circulation. Cardiovascular Genetics
Orit Markowitz, Michelle Schwartz, Sumeet Minhas, Daniel M Siegel
Non-invasive imaging devices are currently being utilized in research and clinical settings to help visualize, characterize, anddiagnose cancers of the skin. Speckle-variance optical coherence tomography (svOCT) is one such technology that offers considerable promise for non-invasive, real time detection of skin cancers given its added ability to show changes in microvasculature. We present four early lesions of the face namely sebaceous hyperplasia, basal cell skin cancer, pigmented actinic keratosis, and malignant melanoma in situ that each display different important identification markers on svOCT...
2016: Dermatology Online Journal
Seth J Schwartz, Jennifer B Unger, Lourdes Baezconde-Garbanati, Byron L Zamboanga, David Córdova, Elma I Lorenzo-Blanco, Shi Huang, Sabrina E Des Rosiers, Daniel W Soto, Karina M Lizzi, Juan A Villamar, Monica Pattarroyo, José Szapocznik
This 2½-year, 5-wave longitudinal study tests the hypothesis that acculturation discrepancies between Hispanic immigrant parents and adolescents would lead to compromised family functioning, which would then lead to problematic adolescent outcomes. Recent-immigrant Hispanic parent-adolescent dyads (N = 302) completed measures of acculturation and family functioning. Adolescents completed measures of positive youth development, depressive symptoms, problem behavior, and substance use. Results indicated that Time 1 discrepancies in Hispanic-culture retention, and linear trajectories in some of these discrepancies, negatively predicted adolescent positive youth development, and positively predicted adolescent depressive symptoms and binge drinking, indirectly through adolescent-reported family functioning...
September 2016: Journal of Research on Adolescence: the Official Journal of the Society for Research on Adolescence
Stavros Garantziotis, Zhuowei Li, Erin N Potts, Koji Kimata, Lisheng Zhuo, Daniel L Morgan, Rashmin C Savani, Paul W Noble, W Michael Foster, David A Schwartz, John W Hollingsworth
No abstract text is available yet for this article.
September 9, 2016: Journal of Biological Chemistry
Marina I Giannotti, Ibane Abasolo, Mireia Oliva, Fernanda Andrade, Natalia García-Aranda, Marta Melgarejo, Daniel Pulido, José L Corchero, Yolanda Fernández, Antonio Villaverde, Miriam Royo, María F García-Parajo, Fausto Sanz, Simó Schwartz
Lysosomal storage disorders are currently treated by enzyme replacement therapy (ERT) through the direct administration of the unprotected recombinant protein to the patients. Herein we present an ionically cross-linked polyelectrolyte complex (PEC) composed of trimethyl chitosan (TMC) and α-galactosidase A (GLA), the defective enzyme in Fabry disease, with the capability of directly targeting endothelial cells by incorporating peptide ligands containing the RGD sequence. We assessed the physicochemical properties, cytotoxicity, and hemocompatibility of RGD-targeted and untargeted PECs, the uptake by endothelial cells and the intracellular activity of PECs in cell culture models of Fabry disease...
October 5, 2016: ACS Applied Materials & Interfaces
Sanguk Yun, Madhusudhan Budatha, James E Dahlman, Brian G Coon, Ryan T Cameron, Robert Langer, Daniel G Anderson, George Baillie, Martin A Schwartz
Atherosclerosis is primarily a disease of lipid metabolism and inflammation; however, it is also closely associated with endothelial extracellular matrix (ECM) remodelling, with fibronectin accumulating in the laminin-collagen basement membrane. To investigate how fibronectin modulates inflammation in arteries, we replaced the cytoplasmic tail of the fibronectin receptor integrin α5 with that of the collagen/laminin receptor integrin α2. This chimaera suppressed inflammatory signalling in endothelial cells on fibronectin and in knock-in mice...
October 2016: Nature Cell Biology
William Moir, Rachel Zeig-Owens, Robert D Daniels, Charles B Hall, Mayris P Webber, Nadia Jaber, James H Yiin, Theresa Schwartz, Xiaoxue Liu, Madeline Vossbrinck, Kerry Kelly, David J Prezant
BACKGROUND: We previously reported a modest excess of cancer in World Trade Center (WTC)-exposed firefighters versus the general population. This study aimed to separate the potential carcinogenic effects of firefighting and WTC exposure by comparing to a cohort of non-WTC-exposed firefighters. METHODS: Relative rates (RRs) for all cancers combined and individual cancer subtypes from 9/11/2001 to 12/31/2009 were modeled using Poisson regression comparing 11,457 WTC-exposed firefighters to 8,220 urban non-WTC-exposed firefighters...
September 2016: American Journal of Industrial Medicine
Lorenza Rimassa, Giovanni Abbadessa, Nicola Personeni, Camillo Porta, Ivan Borbath, Bruno Daniele, Stefania Salvagni, Jean-Luc Van Laethem, Hans Van Vlierberghe, Jörg Trojan, Enrico N De Toni, Alan Weiss, Steven Miles, Antonio Gasbarrini, Monica Lencioni, Maria E Lamar, Yunxia Wang, Dale Shuster, Brian E Schwartz, Armando Santoro
: ARQ 197-215 was a randomized placebo-controlled phase II study testing the MET inhibitor tivantinib in second-line hepatocellular carcinoma (HCC) patients. It identified tumor MET as a key biomarker in HCC. Aim of this research was to study the prognostic and predictive value of tumor (MET, the receptor tyrosine kinase encoded by the homonymous MNNG-HOS transforming gene) and circulating (MET, hepatocyte growth factor [HGF], alpha-fetoprotein [AFP], vascular endothelial growth factor [VEGF]) biomarkers in second-line HCC...
August 25, 2016: Oncotarget
Jacob Jipp, Daniel Sadowski, Paul Kay, Bradley Schwartz
BACKGROUND: Although renal involvement is often present in non-Hodgkin's lymphoma (NHL), primary renal NHL is a rare diagnosis. CASE PRESENTATION: We present a case report of a 72-year-old asymptomatic male who underwent a robot-assisted laparoscopic radical nephroureterectomy on an atrophic left kidney with evidence of an infiltrating mass. Pathology report demonstrated a grade 1 follicular lymphoma. CONCLUSION: Lymphoma is a differential that should be considered when evaluating a renal mass...
2016: J Endourol Case Rep
Ricky S Joshi, Paras Garg, Noah Zaitlen, Tuuli Lappalainen, Corey T Watson, Nidha Azam, Daniel Ho, Xin Li, Stylianos E Antonarakis, Han G Brunner, Karin Buiting, Sau Wai Cheung, Bradford Coffee, Thomas Eggermann, David Francis, Joep P Geraedts, Giorgio Gimelli, Samuel G Jacobson, Cedric Le Caignec, Nicole de Leeuw, Thomas Liehr, Deborah J Mackay, Stephen B Montgomery, Alistair T Pagnamenta, Peter Papenhausen, David O Robinson, Claudia Ruivenkamp, Charles Schwartz, Bernhard Steiner, David A Stevenson, Urvashi Surti, Thomas Wassink, Andrew J Sharp
Genomic imprinting is a mechanism in which gene expression varies depending on parental origin. Imprinting occurs through differential epigenetic marks on the two parental alleles, with most imprinted loci marked by the presence of differentially methylated regions (DMRs). To identify sites of parental epigenetic bias, here we have profiled DNA methylation patterns in a cohort of 57 individuals with uniparental disomy (UPD) for 19 different chromosomes, defining imprinted DMRs as sites where the maternal and paternal methylation levels diverge significantly from the biparental mean...
September 1, 2016: American Journal of Human Genetics
Paul Flechsig, Philipp Frank, Clemens Kratochwil, Gerald Antoch, Daniel Rath, Jan Moltz, Michael Rieser, Arne Warth, Hans-Ulrich Kauczor, Lawrence H Schwartz, Uwe Haberkorn, Frederik L Giesel
PURPOSE: Mediastinal nodal (N)-staging done by integrated 2-deoxy-2-[(18)F]fluoro-D-glucose ([(18)F]FDG) positron emission tomography/x-ray computed tomography (PET/CT) in lung cancer patients is not always accurate. In order to reduce the need for invasive staging procedures, additional surrogate parameters for the detection of malignant lymph node infiltration would be helpful. The purpose of this study was to evaluate if radiomic semi-automated density profiling in mediastinal lymph nodes can improve preclinical N-staging, irrespective of the specific lung cancer entity...
August 18, 2016: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
Adam M Sonabend, Brad E Zacharia, Michael B Cloney, Aarón Sonabend, Christopher Showers, Victoria Ebiana, Matthew Nazarian, Kristin R Swanson, Anne Baldock, Henry Brem, Jeffrey N Bruce, William Butler, Daniel P Cahill, Bob Carter, Daniel A Orringer, David W Roberts, Oren Sagher, Nader Sanai, Theodore H Schwartz, Daniel L Silbergeld, Michael B Sisti, Reid C Thompson, Allen E Waziri, Guy McKhann
BACKGROUND: Extent of resection (EOR) correlates with glioblastoma outcomes. Resectability and EOR depend on anatomical, clinical, and surgeon factors. Resectability likely influences outcome in and of itself, but an accurate measurement of resectability remains elusive. An understanding of resectability and the factors that influence it may provide a means to control a confounder in clinical trials and provide reference for decision making. OBJECTIVE: To provide proof of concept of the use of the collective wisdom of experienced brain tumor surgeons in assessing glioblastoma resectability...
August 4, 2016: Neurosurgery
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