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David A Rubin

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https://www.readbyqxmd.com/read/28333362/budesonide-multi-matrix-is-efficacious-for-mesalamine-refractory-mild-to-moderate-ulcerative-colitis-a-randomized-placebo-controlled-trial
#1
David T Rubin, Russell D Cohen, William J Sandborn, Gary R Lichtenstein, Jeffrey Axler, Robert H Riddell, Cindy Zhu, Andrew C Barrett, Enoch Bortey, William P Forbes
Background and Aims.: Safety and efficacy of budesonide multimatrix, an oral extended-release second-generation corticosteroid designed for targeted delivery throughout the colon, was examined for induction of remission in patients with mild to moderate ulcerative colitis refractory to baseline mesalamine therapy. Methods.: A randomized, double-blind, placebo-controlled, multicenter trial evaluated efficacy and safety of budesonide multimatrix for induction of remission [ulcerative colitis disease activity index score ≥ 4 and ≤ 10] in 510 adults randomized to once-daily oral budesonide multimatrix 9 mg or placebo for 8 weeks...
March 4, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28331002/personalized-in-vitro-and-in-vivo-cancer-models-to-guide-precision-medicine
#2
Chantal Pauli, Benjamin D Hopkins, Davide Prandi, Reid Shaw, Tarcisio Fedrizzi, Andrea Sboner, Verena Sailer, Michael Augello, Loredana Puca, Rachele Rosati, Terra J McNary, Yelena Churakova, Cynthia Cheung, Joanna Triscott, David Pisapia, Rema Rao, Juan Miguel Mosquera, Brian Robinson, Bishoy M Faltas, Brooke E Emerling, Vijayakrishna K Gadi, Brady Bernard, Olivier Elemento, Himisha Beltran, Francesca Demichelis, Christopher J Kemp, Carla Grandori, Lewis C Cantley, Mark A Rubin
Precision medicine is an approach that takes into account the influence of individuals' genes, environment, and lifestyle exposures to tailor interventions. Here, we describe the development of a robust precision cancer care platform that integrates whole-exome sequencing with a living biobank that enables high-throughput drug screens on patient-derived tumor organoids. To date, 56 tumor-derived organoid cultures and 19 patient-derived xenograft (PDX) models have been established from the 769 patients enrolled in an Institutional Review Board-approved clinical trial...
March 22, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28301204/impact-of-an-interactive-diagnostic-case-simulator-on-a-medical-student-radiology-rotation
#3
Michael V Friedman, Jennifer L Demertzis, Travis J Hillen, Jeremiah R Long, David A Rubin
OBJECTIVE: The objective of our study was to assess the short-term impact of adding an interactive simulator to a medical student radiology clerkship. We hypothesized that transitioning students from passive observers to active participants in the reading room would create an appealing and effective learning experience for the current generation of students. MATERIALS AND METHODS: An interactive workstation that provided diagnostic simulations of 84 cases selected to maximize exposure to important diagnoses in musculoskeletal (MSK) radiology was created...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28296817/communication-between-physicians-and-patients-with-ulcerative-colitis-reflections-and-insights-from-a-qualitative-study-of-in-office-patient-physician-visits
#4
David T Rubin, Marla C Dubinsky, Steve Martino, Kathleen A Hewett, Julian Panés
BACKGROUND: We analyzed in-office communication between patients with ulcerative colitis (UC) and their gastroenterologists. METHODS: Participating gastroenterologists (United States N = 15; Europe N = 8) identified eligible patients with scheduled clinic visits. Patients (United States N = 40; Europe N = 28; ≥18 yr old; physician-defined moderately-to-severely active ulcerative colitis for approximately ≥1 yr; ≥1 flare in preceding year; prior or current therapy with 5-aminosalicylates and/or corticosteroids) consented to have their visit recorded...
April 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28253528/appropriate-use-criteria-in-musculoskeletal-imaging
#5
Jennifer L Demertzis, David A Rubin
In the United States, health care costs are spiraling upward at an unsustainable rate. Concurrently, medical specialties, legislatures, and the population each recognize the need to prove that current medical practices are effective, measured by outcomes. These forces necessitate a change in radiology's role, from emphasizing interpretation and reporting to maintaining and demonstrating quality and value. An important part of this task involves establishing the appropriateness of imaging tests by application of objective data and expert opinion in an effort to optimize resource utilization and modality selection...
February 2017: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/28250426/differential-expression-of-the-protein-kinase-a-subunits-in-normal-adrenal-glands-and-adrenocortical-adenomas
#6
Isabel Weigand, Cristina L Ronchi, Marthe Rizk-Rabin, Guido Di Dalmazi, Vanessa Wild, Kerstin Bathon, Beatrice Rubin, Davide Calebiro, Felix Beuschlein, Jérôme Bertherat, Martin Fassnacht, Silviu Sbiera
Somatic mutations in protein kinase A catalytic α subunit (PRKACA) were found to be causative for 30-40% of cortisol-producing adenomas (CPA) of the adrenal gland, rendering PKA signalling constitutively active. In its resting state, PKA is a stable and inactive heterotetramer, consisting of two catalytic and two regulatory subunits with the latter inhibiting PKA activity. The human genome encodes three different PKA catalytic subunits and four different regulatory subunits that are preferentially expressed in different organs...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28248733/early-transcriptomic-changes-in-the-ileal-pouch-provide-insight-into-the-molecular-pathogenesis-of-pouchitis-and-ulcerative-colitis
#7
Yong Huang, Sushila Dalal, Dionysios Antonopoulos, Nathaniel Hubert, Laura H Raffals, Kyle Dolan, Christopher Weber, Jeannette S Messer, Bana Jabri, Albert Bendelac, A Murat Eren, David T Rubin, Mitch Sogin, Eugene B Chang
BACKGROUND: Ulcerative colitis (UC) only involves the colonic mucosa. Yet, nearly 50% of patients with UC who undergo total proctocolectomy with ileal pouch anal anastomosis develop UC-like inflammation of the ileal pouch (pouchitis). By contrast, patients with familial adenomatous polyposis (FAP) with ileal pouch anal anastomosis develop pouchitis far less frequently. We hypothesized that pathogenic events associated with the development of UC are recapitulated by colonic-metaplastic transcriptomic reprogramming of the UC pouch...
February 13, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28240562/guidelines-for-management-of-incidental-pulmonary-nodules-detected-on-ct-images-from-the-fleischner-society-2017
#8
Heber MacMahon, David P Naidich, Jin Mo Goo, Kyung Soo Lee, Ann N C Leung, John R Mayo, Atul C Mehta, Yoshiharu Ohno, Charles A Powell, Mathias Prokop, Geoffrey D Rubin, Cornelia M Schaefer-Prokop, William D Travis, Paul E Van Schil, Alexander A Bankier
The Fleischner Society Guidelines for management of solid nodules were published in 2005, and separate guidelines for subsolid nodules were issued in 2013. Since then, new information has become available; therefore, the guidelines have been revised to reflect current thinking on nodule management. The revised guidelines incorporate several substantive changes that reflect current thinking on the management of small nodules. The minimum threshold size for routine follow-up has been increased, and recommended follow-up intervals are now given as a range rather than as a precise time period to give radiologists, clinicians, and patients greater discretion to accommodate individual risk factors and preferences...
February 23, 2017: Radiology
https://www.readbyqxmd.com/read/28238954/histologic-normalization-occurs-in-ulcerative-colitis-and-is-associated-with-improved-clinical-outcomes
#9
Britt Christensen, Stephen B Hanauer, Jonathan Erlich, Olufemi Kassim, Peter R Gibson, Jerrold R Turner, John Hart, David T Rubin
BACKGROUND & AIMS: Mucosal healing, determined by histologic analysis, is a potential therapeutic target for patients with ulcerative colitis (UC). However, the histologic features of tissue normalization, as an outcome of treatment, have not been well described. We examined the prevalence and predictive values of normalization of the colonic mucosa, based on histologic analysis (histologic normalization) in patients with UC, and determined its association with risk of clinical relapse, compared to disease quiescence and mucosal healing...
February 23, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28221248/early-transcriptomic-changes-in-the-ileal-pouch-provide-insight-into-the-molecular-pathogenesis-of-pouchitis-and-ulcerative-colitis
#10
Yong Huang, Sushila Dalal, Dionysios Antonopoulos, Nathaniel Hubert, Laura H Raffals, Kyle Dolan, Christopher Weber, Jeannette S Messer, Bana Jabri, Albert Bendelac, A Murat Eren, David T Rubin, Mitch Sogin, Eugene B Chang
BACKGROUND: Ulcerative colitis (UC) only involves the colonic mucosa. Yet, nearly 50% of patients with UC who undergo total proctocolectomy with ileal pouch anal anastomosis develop UC-like inflammation of the ileal pouch (pouchitis). By contrast, patients with familial adenomatous polyposis (FAP) with ileal pouch anal anastomosis develop pouchitis far less frequently. We hypothesized that pathogenic events associated with the development of UC are recapitulated by colonic-metaplastic transcriptomic reprogramming of the UC pouch...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28197743/the-impact-of-therapeutic-antibodies-on-the-management-of-digestive-diseases-history-current-practice-and-future-directions
#11
EDITORIAL
M Anthony Sofia, David T Rubin
The development of therapeutic antibodies represents a revolutionary change in medical therapy for digestive diseases. Beginning with the initial studies that confirmed the pathogenicity of cytokines in inflammatory bowel disease, the development and application of therapeutic antibodies brought challenges and insights into their potential and optimal use. Infliximab was the first biological drug approved for use in Crohn's disease and ulcerative colitis. The lessons learned from infliximab include the importance of immunogenicity and the influence of pharmacokinetics on disease response and outcomes...
February 14, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28195944/regulatory-advocacy-update-asps-comments-in-response-to-the-fda-draft-guidance-documents-on-human-cell-and-tissue-products
#12
J Peter Rubin, Richard A D'Amico, Ricardo Rodriguez, Sydney R Coleman, Paul Cederna, Scot Glasberg, Michael Neumeister, David H Song, Charles Butler, Keith M Hume
The Food and Drug Administration (FDA) released draft guidance documents on Human Cells, Tissues, and Cellular and Tissue-Based Products (HCT/P) Regulations. These proposed guidance documents can impact the practice of plastic surgery in the area of tissue grafting procedures. This article describes the relevant issues in these draft guidance documents, and presents the comments provided to the FDA by the American Society of Plastic Surgeons (ASPS).
February 9, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28190787/comparison-of-hemodynamic-parameters-in-treatment-na%C3%A3-ve-and-pre-treated-patients-with-pulmonary-arterial-hypertension-in-the-randomized-phase-iii-patent-1-study
#13
Nazzareno Galiè, Friedrich Grimminger, Ekkehard Grünig, Marius M Hoeper, Marc Humbert, Zhi-Cheng Jing, Anne M Keogh, David Langleben, Lewis J Rubin, Arno Fritsch, Neil Davie, Hossein-Ardeschir Ghofrani
BACKGROUND: Detailed hemodynamic data from the phase III PATENT-1 study of riociguat in patients with pulmonary arterial hypertension (PAH) were investigated. METHODS: Patients with PAH who were treatment naïve or pre-treated with endothelin receptor antagonists or non-intravenous prostanoids were randomly assigned to riociguat up to 2.5 mg 3 times a day or placebo. Hemodynamic parameters were assessed at baseline and week 12. RESULTS: Riociguat significantly decreased pulmonary vascular resistance in treatment-naïve (n = 221; least squares [LS] mean difference -266 dyne∙sec∙cm(-5) [95% confidence interval (CI) -357 to -175; p < 0...
December 24, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28176907/a-randomized-trial-of-once-daily-fluticasone-furoate-vilanterol-or-vilanterol-versus-placebo-to-determine-effects-on-arterial-stiffness-in-copd
#14
Surya P Bhatt, Mark T Dransfield, John R Cockcroft, Jie Wang-Jairaj, Dawn A Midwinter, David B Rubin, Catherine A Scott-Wilson, Courtney Crim
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is associated with increased cardiovascular morbidity and mortality. Elevated arterial stiffness, measured by aortic pulse wave velocity (aPWV), is a cardiovascular risk surrogate and is potentially modifiable by inhaled corticosteroid/long-acting beta2-agonist combinations in patients with COPD. MATERIALS AND METHODS: The effects of once-daily inhaled fluticasone furoate/vilanterol (FF/VI) 100/25 µg, VI 25 µg, versus placebo on arterial stiffness in patients with COPD and baseline aPWV ≥11...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28145781/detection-of-adalimumab-and-antibodies-to-adalimumab-using-the-anser%C3%A2-ada-homogeneous-mobility-shift-assay
#15
David T Rubin, Snehal Naik, Venkateswarlu Kondragunta, Tharak Rao, Anjali Jain
OBJECTIVE: In 2013 a novel commercial test was launched (Anser ADA test, Prometheus Laboratories Inc.) for the assay of serum adalimumab (ADL) and antibodies-to-adalimumab (ATA). This study aims to understand clinical practice patterns used with ADL in a real-world cross-sectional population. METHODS: Wilcoxon rank sum test, and linear and logistic regression methods were applied in the statistical analysis to test hypotheses. The study design was observational and uncontrolled...
February 1, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28144619/two-complex-cases-of-hermansky-pudlak-syndrome-highlight-a-potential-biologic-explanation-for-an-associated-crohn-s-disease-phenotype
#16
M Anthony Sofia, Atsushi Sakuraba, David T Rubin
Hermansky-Pudlak syndrome (HPS) is a rare autosomal recessive disorder characterized by oculocutaneous albinism and a lack of dense granules in platelets. HPS types 1 and 4 are associated with a granulomatous enterocolitis that is phenotypically indistinguishable from Crohn's disease. We present two cases of HPS-associated Crohn's disease phenotype in which the patients were refractory to standard medical management. The pathophysiology of HPS is mediated by single-gene defects that alter endosome trafficking, and we hypothesize that this mechanism leads to the observed association with a CD phenotype...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28130995/investigating-the-separate-and-interactive-associations-of-trauma-and-depression-on-neurocognition-in-urban-dwelling-adults
#17
Aimee James Karstens, Leah H Rubin, Stewart A Shankman, Olusola Ajilore, David J Libon, Anand Kumar, Melissa Lamar
BACKGROUND: Trauma and depression have each been associated with neurocognitive alterations, but their combined effect on neurocognition is unclear. We investigated the separate and interactive associations of trauma and depression on neurocognition in a sample of ethnically diverse urban dwellers, and explored the impact of age on these effects. METHODS: 284 adults aged 30-89 were divided into groups based on their current depression and trauma history. Individuals meeting DSM-IV criteria for depression were considered Depressed (D+) and individuals rated through diagnostic interview as having trauma history were considered positive for Trauma (T+)...
January 16, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28129987/comparison-of-adjuvant-gemcitabine-and-capecitabine-with-gemcitabine-monotherapy-in-patients-with-resected-pancreatic-cancer-espac-4-a-multicentre-open-label-randomised-phase-3-trial
#18
John P Neoptolemos, Daniel H Palmer, Paula Ghaneh, Eftychia E Psarelli, Juan W Valle, Christopher M Halloran, Olusola Faluyi, Derek A O'Reilly, David Cunningham, Jonathan Wadsley, Suzanne Darby, Tim Meyer, Roopinder Gillmore, Alan Anthoney, Pehr Lind, Bengt Glimelius, Stephen Falk, Jakob R Izbicki, Gary William Middleton, Sebastian Cummins, Paul J Ross, Harpreet Wasan, Alec McDonald, Tom Crosby, Yuk Ting Ma, Kinnari Patel, David Sherriff, Rubin Soomal, David Borg, Sharmila Sothi, Pascal Hammel, Thilo Hackert, Richard Jackson, Markus W Büchler
BACKGROUND: The ESPAC-3 trial showed that adjuvant gemcitabine is the standard of care based on similar survival to and less toxicity than adjuvant 5-fluorouracil/folinic acid in patients with resected pancreatic cancer. Other clinical trials have shown better survival and tumour response with gemcitabine and capecitabine than with gemcitabine alone in advanced or metastatic pancreatic cancer. We aimed to determine the efficacy and safety of gemcitabine and capecitabine compared with gemcitabine monotherapy for resected pancreatic cancer...
March 11, 2017: Lancet
https://www.readbyqxmd.com/read/28129752/the-english-national-cohort-study-of-flooding-and-health-cross-sectional-analysis-of-mental-health-outcomes-at-year-one
#19
Thomas David Waite, Katerina Chaintarli, Charles R Beck, Angie Bone, Richard Amlôt, Sari Kovats, Mark Reacher, Ben Armstrong, Giovanni Leonardi, G James Rubin, Isabel Oliver
BACKGROUND: In winter 2013/14 there was widespread flooding in England. Previous studies have described an increased prevalence of psychological morbidity six months after flooding. Disruption to essential services may increase morbidity however there have been no studies examining whether those experiencing disruption but not directly flooded are affected. The National Study of Flooding and Health was established in order to investigate the longer-term impact of flooding and related disruptions on mental health and wellbeing...
January 28, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28122568/thermodynamic-considerations-in-renal-separation-processes
#20
Robert H Louw, David M Rubin, David Glasser, Robyn F R Letts, Diane Hildebrandt
BACKGROUND: Urine production in the kidney is generally thought to be an energy-intensive process requiring large amounts of metabolic activity to power active transport mechanisms. This study uses a thermodynamic analysis to evaluate the minimum work requirements for urine production in the human kidney and provide a new perspective on the energy costs of urine production. In this study, black-box models are used to compare the Gibbs energy inflow and outflow of the overall kidney and physiologically-based subsections in the kidney, to calculate the work of separation for urine production...
January 26, 2017: Theoretical Biology & Medical Modelling
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