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Lauren M Postlewait, Cecilia G Ethun, Mia R McInnis, Nipun Merchant, Alexander Parikh, Kamran Idrees, Chelsea A Isom, William Hawkins, Ryan C Fields, Matthew Strand, Sharon M Weber, Clifford S Cho, Ahmed Salem, Robert C G Martin, Charles Scoggins, David Bentrem, Hong J Kim, Jacquelyn Carr, Syed Ahmad, Daniel E Abbott, Gregory C Wilson, David A Kooby, Shishir K Maithel
Importance: Pancreatic mucinous cystic neoplasms (MCNs) harbor malignant potential, and current guidelines recommend resection. However, data are limited on preoperative risk factors for malignancy (adenocarcinoma or high-grade dysplasia) occurring in the setting of an MCN. Objectives: To examine the preoperative risk factors for malignancy in resected MCNs and to assess outcomes of MCN-associated adenocarcinoma. Design, Setting, and Participants: Patients who underwent pancreatic resection of MCNs at the 8 academic centers of the Central Pancreas Consortium from January 1, 2000, through December 31, 2014, were retrospectively identified...
October 19, 2016: JAMA Surgery
Bryan E Essien, Sinju Sundaresan, Ramon Ocadiz-Ruiz, Aaron Chavis, Amy C Tsao, Arthur J Tessier, Michael M Hayes, Amanda Photenhauer, Milena Saqui-Salces, Anthony J Kang, Yatrik M Shah, Balázs Györffy, Juanita L Merchant
In colorectal cancer (CRC), APC-mediated induction of unregulated cell growth involves post-translational mechanisms that prevent proteasomal degradation of proto-oncogene β-catenin (CTNNB1) and its eventual translocation to the nucleus. However, about 10 percent of colorectal tumors also exhibit increased CTNNB1 mRNA. Here we show in CRC that increased expression of ZNF148, the gene coding for transcription factor ZBP-89, correlated with reduced patient survival. Tissue arrays showed that ZBP-89 protein was overexpressed in the early stages of CRC...
October 10, 2016: Cancer Research
Sabeeha S Merchant, Nancy Eckardt
No abstract text is available yet for this article.
October 18, 2016: Plant Cell
Nicolás Merchante, Sofía Ibarra, Boris Revollo, Francisco Rodríguez-Arrondo, Esperanza Merino, Marcial Delgado-Fernández, Marta Montero-Alonso, Francisco Téllez, Maria J Galindo, Antonio Rivero-Juárez, Maria A García, Carlos Mínguez, Alberto Romero-Palacios, Miguel Del Toro, Juan A Pineda
OBJECTIVE: To report the real-life results of sorafenib use in a cohort of HIV-infected patients with hepatocellular carcinoma (HCC). METHODS: The GEHEP-002 cohort ( ID: NCT02785835) has recruited 302 HCC cases diagnosed in HIV-infected patients from 32 centers from Spain. RIS-HEP12 study included 44 (14%) cases that have received at least one dose of sorafenib. The overall survival after the start of treatment (OSaT) was the main efficacy outcome...
October 14, 2016: AIDS
Josie Merchant, Gemma Kitsos, Samantha Ashby, Alex Kitsos, Isobel J Hubbard
Objective. To assess whether acute stroke patients in rural hospitals receive less occupational therapy and physiotherapy than those in metropolitan hospitals. Design. Retrospective case-control study of health data in patients ≤10 days after stroke. Setting. Occupational therapy and physiotherapy services in four rural hospitals and one metropolitan hospital. Participants. Acute stroke patients admitted in one health district. Main Outcome Measures. Frequency and duration of face-to-face and indirect therapy sessions...
2016: Stroke Research and Treatment
Lucy Yardley, Bonnie J Spring, Heleen Riper, Leanne G Morrison, David H Crane, Kristina Curtis, Gina C Merchant, Felix Naughton, Ann Blandford
This paper is one in a series developed through a process of expert consensus to provide an overview of questions of current importance in research into engagement with digital behavior change interventions, identifying guidance based on research to date and priority topics for future research. The first part of this paper critically reflects on current approaches to conceptualizing and measuring engagement. Next, issues relevant to promoting effective engagement are discussed, including how best to tailor to individual needs and combine digital and human support...
November 2016: American Journal of Preventive Medicine
Georgia Halkett, Moira O'Connor, Sanchia Aranda, Michael Jefford, Susan Merchant, Debra York, Lisa Miller, Penelope Schofield
INTRODUCTION: Patients sometimes present for radiation therapy with high levels of anxiety. Communication skills training may assist radiation therapists to conduct more effective consultations with patients prior to treatment planning and treatment commencement. The overall aim of our research is to examine the effectiveness of a preparatory programme 'RT Prepare' delivered by radiation therapists to reduce patient psychological distress. The purpose of this manuscript was to describe the communication skills workshops developed for radiation therapists and evaluate participants' feedback...
April 21, 2016: Journal of Medical Radiation Sciences
Rishit R Merchant, Lorena Maldonado-Camargo, Carlos Rinaldi
The dynamic magnetic susceptibility response of magnetic nanoparticles was used to independently determine the viscosity of the dispersed and continuous phases of oil-in-water emulsions in situ. Cobalt ferrite nanoparticles coated with oleic acid (OA) or poly(ethylene glycol) (PEG) were prepared and mixed with emulsions, where they partitioned to the dispersed oil phase or continuous water phase, respectively. Emulsions with a range of dispersed-phase volume fractions were prepared and characterized using the nanoparticles and conventional rheometry...
September 28, 2016: Journal of Colloid and Interface Science
Shuguo Yang, Danmei Jiao, Changjun Liu, Ming Lv, Shan Li, Zongyun Chen, Yao Deng, Yanqing Zhao, Jian Li
BACKGROUND: Ordinary screening of transfusion-transmissible infections (TTIs) among blood donors is essential for blood transfusion. Although there is several TTIs studies focus on human immunodeficiency virus, hepatitis B and C viruses, and Treponema pallidum infections in China, it is no data to illustrate any firm conclusion from Shiyan City, Central China. It aims to verify the seroprevalence of TTIs among blood donors at Shiyan. METHODS: A retrospective analysis of blood donors' information was conducted for the presence of HIV, HBV, HCV and T...
October 1, 2016: BMC Infectious Diseases
Yong-Moon Mark Park, Teresa T Fung, Susan E Steck, Jiajia Zhang, Linda J Hazlett, Kyungdo Han, Seung-Hwan Lee, Anwar T Merchant
OBJECTIVE: To examine the associations among the Dietary Approaches to Stop Hypertension (DASH)-style diet, the Healthy Eating Index (HEI), and mortality risk in metabolically obese normal-weight (MONW) adults. PATIENTS AND METHODS: Data were from normal-weight (body mass index of 18.5 to <25) adults aged 30 to 90 years at baseline in the Third National Health and Nutrition Examination Survey, October 18, 1988, through October 15, 1994, followed up for deaths (all-cause, cardiovascular, and cancer related) until December 31, 2011...
October 2016: Mayo Clinic Proceedings
Benjamin W Chrisinger, Anne V Grossestreuer, Meredith C Laguna, Heather M Griffis, Charles C Branas, Douglas J Wiebe, Raina M Merchant
AIM: Approximately 424,000 out-of-hospital cardiac arrests (OHCA) occur in the US annually. As automated external defibrillators (AED) are an important part of the community response to OHCA, we investigated how well the spatial demand (likelihood of OHCA) was met by the spatial supply (AEDs) in a dense urban environment. METHODS: Using geographic information system (GIS) software, we applied kernel density and optimized hot spot procedures with two differently-sized radii to model OHCA incidence rates from existing studies, providing an estimate of OHCA likelihood at a given location...
October 1, 2016: Resuscitation
Renn-Chia Lin, Ko-Huang Lue, Ko-Hsiu Lu
To evaluate whether arthroscopic lateral retinacular release and the modified Elmslie-Trillat operation improve osteoarthritis (OA) progression and clinical outcomes in patients with severe isolated lateral patello-femoral OA. Nine women (11 knees) and one man (one knee) with isolated late-stage lateral patello-femoral OA underwent surgery. The severity of patello-femoral OA was recorded using the Merchant method, while the level of pain and anterior knee function were scored using the visual analogue scale (VAS) and Kujala knee scores, respectively...
October 3, 2016: Journal of Knee Surgery
Weiguang Yao, Thomas E Merchant, Jonathan B Farr
The lateral homogeneity assumption is used in most analytical algorithms for proton dose, such as the pencil-beam algorithms and our simplified analytical random walk model. To improve the dose calculation in the distal fall-off region in heterogeneous media, we analyzed primary proton fluence near heterogeneous media and propose to calculate the lateral fluence with voxel-specific Gaussian distributions. The lateral fluence from a beamlet is no longer expressed by a single Gaussian for all the lateral voxels, but by a specific Gaussian for each lateral voxel...
October 3, 2016: Physics in Medicine and Biology
Weiguang Yao, Thomas E Merchant, Jonathan B Farr
We propose an analytical random walk model for proton dose calculation in a laterally homogeneous medium. A formula for the spatial fluence distribution of primary protons is derived. The variance of the spatial distribution is in the form of a distance-squared law of the angular distribution. To improve the accuracy of dose calculation in the Bragg peak region, the energy spectrum of the protons is used. The accuracy is validated against Monte Carlo simulation in water phantoms with either air gaps or a slab of bone inserted...
October 3, 2016: Physics in Medicine and Biology
Sarah M Perman, Emily Stanton, Jasmeet Soar, Robert A Berg, Michael W Donnino, Mark E Mikkelsen, Dana P Edelson, Matthew M Churpek, Lin Yang, Raina M Merchant
BACKGROUND: In-hospital cardiac arrest (IHCA) is a major public health problem with significant mortality. A better understanding of where IHCA occurs in hospitals (intensive care unit [ICU] versus monitored ward [telemetry] versus unmonitored ward) could inform strategies for reducing preventable deaths. METHODS AND RESULTS: This is a retrospective study of adult IHCA events in the Get with the Guidelines-Resuscitation database from January 2003 to September 2010...
2016: Journal of the American Heart Association
Terry D Crawford, F Anthony Romero, Kwong Wah Lai, Vickie Tsui, Alexander M Taylor, Gladys de Leon Boenig, Cameron L Noland, Jeremy Murray, Justin Ly, Edna F Choo, Thomas L Hunsaker, Emily W Chan, Mark Merchant, Samir Kharbanda, Karen E Gascoigne, Susan Kaufman, Maureen H Beresini, Jiangpeng Liao, Wenfeng Liu, Kevin X Chen, Zhongguo Chen, Andrew R Conery, Alexandre Côté, Hariharan Jayaram, Ying Jiang, James R Kiefer, Tracy Kleinheinz, Yingjie Li, Jonathan Maher, Eneida Pardo, Florence Poy, Kerry L Spillane, Fei Wang, Jian Wang, Xiaocang Wei, Zhaowu Xu, Zhongya Xu, Ivana Yen, Laura Zawadzke, Xiaoyu Zhu, Steven Bellon, Richard Cummings, Andrea G Cochran, Brian K Albrecht, Steven Magnuson
The single bromodomain of the closely related transcriptional regulators CBP/EP300 is a target of much recent interest in cancer and immune system regulation. A co-crystal structure of a ligand-efficient screening hit and the CBP bromodomain guided initial design targeting the LPF shelf, ZA loop, and acetylated lysine binding regions. Structure-activity relationship studies allowed us to identify a more potent analogue. Optimization of permeability and microsomal stability and subsequent improvement of mouse hepatocyte stability afforded 59 (GNE-272, TR-FRET IC50 = 0...
September 28, 2016: Journal of Medicinal Chemistry
Lauren Sinnenberg, Christie L DiSilvestro, Christina Mancheno, Karl Dailey, Christopher Tufts, Alison M Buttenheim, Fran Barg, Lyle Ungar, H Schwartz, Dana Brown, David A Asch, Raina M Merchant
Importance: As society is increasingly becoming more networked, researchers are beginning to explore how social media can be used to study person-to-person communication about health and health care use. Twitter is an online messaging platform used by more than 300 million people who have generated several billion Tweets, yet little work has focused on the potential applications of these data for studying public attitudes and behaviors associated with cardiovascular health. Objective: To describe the volume and content of Tweets associated with cardiovascular disease as well as the characteristics of Twitter users...
September 28, 2016: JAMA Cardiology
Anwar T Merchant, Michele J Josey
The causal effect of periodontal treatment on systemic outcomes is unclear because even randomized controlled trials (RCTs) have conflicting results. Two models are proposed to explain the apparently conflicting findings from RCTs evaluating the effect of periodontal treatment on inflammation and systemic outcomes among individuals with type 2 diabetes.
October 2016: Journal of Periodontology
J B Farr, N D Sabin, C H Hua, F Pirlepesov, J Shin, V Moskvin, D J Indelicato, Z Li, A Gajjar, T E Merchant
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
W Yao, J B Farr, C H Hua, V Moskvin, L Zhao, M Krasin, J T Lucas, C L Tinkle, T E Merchant
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
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