Digital Commons Network^™

The Global Alliance For Infections In Surgery: Defining A Model For Antimicrobial Stewardship—Results From An International Cross-Sectional Survey, Massimo Sartelli, Francesco M. Labricciosa, Pamela Barbadoro, Leonardo Pagani, Luca Ansaloni, Adrian J. Brink, Jean Carlet, Ashish Khanna, Alain Chichom-Mefire, Federico Coccolini, Salomone Di Saverio, Addison K. May, Pierluigi Viale, Richard R. Watkins, Luigia Scudeller, Lilian M. Abbo, Fikri M. Abu-Zidan, Abdulrashid K. Adesunkanmi, Sara Al-Dahir, Majdi N. Al-Hasan, Halil Alis, Carlos Alves, André R. Araujo Da Silva, Goran Augustin, Miklosh Bala, Philip S. Barie, Marcelo A. Beltrán, Aneel Bhangu, Belefquih Bouchra, Stephen M. Brecher, Miguel A. Caínzos, Adrian Camacho-Ortiz, Marco Catani, Sujith J. Chandy, Asri Che Jusoh, Jill R. Cherry-Bukowiec, Osvaldo Chiara, Elif Colak, Oliver A. Cornely, Yunfeng Cui, Zaza Demetrashvili, Belinda De Simone, Jan J. De Waele, Sameer Dhingra, Francesco Di Marzo, Agron Dogjani, Gereltuya Dorj, Laurent Dortet, Therese M. Duane, Mutasim M. Elmangory, Mushira A. Enani, Paula Ferrada, J. Esteban Foianini, Mahir Gachabayov, Chinmay Gandhi, Wagih Mommtaz Ghnnam, Helen Giamarellou, Georgios Gkiokas, Harumi Gomi, Tatjana Goranovic, Ewen A. Griffiths, Rosio I. Guerra Gronerth, Julio C. Haidamus Monteiro, Timothy C. Hardcastle, Andreas Hecker, Adrien M. Hodonou, Orestis Ioannidis, Arda Isik, Katia A. Iskandar, Hossein S. Kafil, Souha S. Kanj, Lewis J. Kaplan, Garima Kapoor, Aleksandar R. Karamarkovic, Jakub Kenig, Ivan Kerschaever, Faryal Khamis, Vladimir Khokha, Ronald Kiguba, Hong B. Kim, Wen-Chien Ko, Kaoru Koike, Iryna Kozlovska, Anand Kumar, Leonel Lagunes, Rifat Latifi, Jae G. Lee, Young R. Lee, Ari Leppäniemi, Yousheng Li, Stephen Y. Liang, Warren Lowman, Gustavo M. Machain, Marc Maegele, Piotr Major, Sydney Malama, Ramiro Manzano-Nunez, Athanasios Marinis, Isidro Martinez Casas, Sanjay Marwah, Emilio Maseda, Michael E. Mcfarlane, Ziad Memish, Dominik Mertz, Cristian Mesina, Shyam K. Mishra, Ernest E. Moore, Akutu Munyika, Eleftherios Mylonakis, Lena Napolitano, Ionut Negoi, Milica D. Nestorovic, David P. Nicolau, Abdelkarim H. Omari, Carlos A. Ordonez, José-Artur Paiva, Narayan D. Pant, Jose G. Parreira, Michal Pędziwiatr, Bruno M. Pereira, Alfredo Ponce-De-Leon, Garyphallia Poulakou, Jacobus Preller, Céline Pulcini, Guntars Pupelis, Martha Quiodettis, Timothy M. Rawson, Tarcisio Reis, Miran Rems, Sandro Rizoli, Jason Roberts, Nuno Rocha Pereira, Jesús Rodríguez-Baño, Boris Sakakushev, James Sanders, Natalia Santos, Norio Sato, Robert G. Sawyer, Sandro Scarpelini, Loredana Scoccia, Nusrat Shafiq, Vishalkumar Shelat, Costi D. Sifri, Boonying Siribumrungwong, Kjetil Søreide, Rodolfo Soto, Hamilton P. De Souza, Peep Talving, Ngo Tat Trung, Jeffrey M. Tessier, Mario Tumbarello, Jan Ulrych, Selman Uranues, Harry Van Goor, Andras Vereczkei, Florian Wagenlehner, Yonghong Xiao, Kuo-Ching Yuan, Agnes Wechsler-Fördös, Jean-Ralph Zahar, Tanya L. Zakrison, Brian Zuckerbraun, Wietse P. Zuidema, Fausto Catena

Surgery Publications

Background

Antimicrobial Stewardship Programs (ASPs) have been promoted to optimize antimicrobial usage and patient outcomes, and to reduce the emergence of antimicrobial-resistant organisms. However, the best strategies for an ASP are not definitively established and are likely to vary based on local culture, policy, and routine clinical practice, and probably limited resources in middle-income countries. The aim of this study is to evaluate structures and resources of antimicrobial stewardship teams (ASTs) in surgical departments from different regions of the world.

Methods

A cross-sectional web-based survey was conducted in 2016 on 173 physicians who participated in the AGORA (Antimicrobials: A Global …

The Role Of Open Abdomen In Non-Trauma Patient: Wses Consensus Paper, Federico Coccolini, Giulia Montori, Marco Ceresoli, Fausto Catena, Ernest E. Moore, Rao Ivatury, Walter Biffl, Andrew Peitzman, Raul Coimbra, Sandro Rizoli, Yoram Kluger, Fikri M. Abu-Zidan, Massimo Sartelli, Marc De Moya, George Velmahos, Gustavo Pereira Fraga, Bruno M. Pereira, Ari Leppaniemi, Marja A. Boermeester, Andrew W. Kirkpatrick, Ron Maier, Miklosh Bala, Boris Sakakushev, Vladimir Khokha, Manu Malbrain, Vanni Agnoletti, Ignacio Martin-Loeches, Michael Sugrue, Salomone Di Saverio, Ewen Griffiths, Kjetil Soreide, John E. Mazuski, Addison K. May, Philippe Montravers, Rita Maria Melotti, Michele Pisano, Francesco Salvetti, Gianmariano Marchesi, Tino M. Valetti, Thomas Scalea, Osvaldo Chiara, Jeffry L. Kashuk, Luca Ansaloni

Surgery Publications

The open abdomen (OA) is defined as intentional decision to leave the fascial edges of the abdomen un-approximated after laparotomy (laparostomy). The abdominal contents are potentially exposed and therefore must be protected with a temporary coverage, which is referred to as temporal abdominal closure (TAC). OA use remains widely debated with many specific details deserving detailed assessment and clarification. To date, in patients with intra-abdominal emergencies, the OA has not been formally endorsed for routine utilization; although, utilization is seemingly increasing. Therefore, the World Society of Emergency Surgery (WSES), Abdominal Compartment Society (WSACS) and the Donegal Research Academy united a …

State Of Harmonization Of 24 Serum Albumin Measurement Procedures And Implications For Medical Decisions, Lorin M. Bachmann, Min Yu, James C. Boyd, David E. Bruns, W. Greg Miller

Pathology Publications

BACKGROUND: Measurements of serum and plasma albumin are widely used in medicine, including as indicators of quality of patient care in renal dialysis centers.

METHODS: Pools were prepared from residual patient serum (n = 50) and heparin plasma (n = 48) from patients without renal disease, and serum from patients with kidney failure before hemodialysis (n = 53). Albumin was measured in all samples and in ERM-DA470k/IFCC reference material (RM) by 3 immunochemical, 9 bromcresol green (BCG), and 12 bromcresol purple (BCP) methods.

RESULTS: Two of 3 immunochemical procedures, 5 of 9 BCG, and 10 of 12 BCP methods recovered …

Development And Validation Of Clinical Whole-Exome And Whole-Genome Sequencing For Detection Of Germline Variants In Inherited Disease, Madhuri Hegde, Avni Santani, Rong Mao, Andrea Ferreira-Gonzalez, Karen E. Weck, Karl V. Voelkerding

Pathology Publications

Context.-With the decrease in the cost of sequencing, the clinical testing paradigm has shifted from single gene to gene panel and now whole-exome and whole-genome sequencing. Clinical laboratories are rapidly implementing next-generation sequencing-based whole-exome and whole-genome sequencing. Because a large number of targets are covered by whole-exome and whole-genome sequencing, it is critical that a laboratory perform appropriate validation studies, develop a quality assurance and quality control program, and participate in proficiency testing.

Objective.-To provide recommendations for wholeexome and whole-genome sequencing assay design, validation, and implementation for the detection of germline variants associated in inherited disorders.

Data Sources.-An example of …

Oral Health And Aging, Edward F. Ansello

Director's Editorials from Age in Action

The sooner we recognize the importance of oral health to our well-being as older adults, the better we age. We need to consider our dentist as part of our health care team. For those of us in health professions, we should work together more to incorporate oral health into primary care.

Safe Driving For The Mature Adult: Selected Issues, Rebecca Parsio

Case Studies from Age in Action

Educational Objectives

1. Examine issues related to aging and driving assessment.

2. Review Virginia’s Mature Drivers Study.

3. Discuss the levels of care for prevention of driving disability and resources available at each level.

4. Explore the impact of medications and substances (both prescribed and not prescribed) on driving ability.

Retention Systems For Extraoral Maxillofacial Prosthetic Implants: A Critical Review, M.V. Cobein, N.P. Coto, O. Crivello Junior, J.B.D. Lemos, L.M. Vieira, M.L. Pimentel, Hugh Byrne, R.B. Dias

Articles

We describe the techniques available for retention of implant-supported prostheses: bar-clips, O-rings, and magnets. We present reported preferences and, although this is limited by the heterogeneity of methods used and patients studied, we hope we have identified the best retention systems for maxillofacial prosthetic implants. If practitioners know the advantages and disadvantages of each system, they can choose the most natural and comfortable prosthesis. We searched the PubMed and Scopus databases, and restricted our search to papers published 2001–13. MeSH terms used were Maxillofacial prosthesis and Craniofacial prosthesis OR Craniofacial prostheses. We found a total of 2630 papers, and after …

Doxorubicin Cytotoxicity In A Human Proximal Tubular Epithelial Cell Line Was Attenuated By The Natural Product Resveratrol, Morghan Schuyler Getty

Theses, Dissertations and Capstones

The cancer chemotherapeutic agent doxorubicin (DOX), Adriamycin, is part of the treatment regimen for breast, ovarian, small cell lung cancer and acute/chronic lymphoid leukemia. Adverse effects associated with DOX are cardiotoxicity and nephrotoxicity. Interventions are needed to reduce DOX nephrotoxicity. Resveratrol (RES) is a phytochemical contained in grapes, berries and nuts, which possesses antioxidant and anticancer properties. This study tested the hypothesis that RES will attenuate DOX renal cytotoxicity in human noncancerous renal proximal tubular epithelial (HK-2) cells and that RES will reduce DOX mediated changes in mitochondrial function. HK-2 cells were plated and grown for 48 hours (h). Cells …

Genomes Of Fasciola Hepatica From The Americas Reveal Colonization With Neorickettsia Endobacteria Related To The Agents Of Potomac Horse And Human Sennetsu Fevers., Samantha N Mcnulty, Jose F Tort, Gabriel Rinaldi, Bruce A Rosa, Victoria H. Mann, Patricia S. Latham, Paul J. Brindley, +Several Additional Authors

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Food borne trematodes (FBTs) are an assemblage of platyhelminth parasites transmitted through the food chain, four of which are recognized as neglected tropical diseases (NTDs). Fascioliasis stands out among the other NTDs due to its broad and significant impact on both human and animal health, as Fasciola sp., are also considered major pathogens of domesticated ruminants. Here we present a reference genome sequence of the common liver fluke, Fasciola hepatica isolated from sheep, complementing previously reported isolate from cattle. A total of 14,642 genes were predicted from the 1.14 GB genome of the liver fluke. Comparative genomics indicated that F. …

T-Cell Responses In Individuals Infected With Zika Virus And In Those Vaccinated Against Dengue Virus, Dominic Paquin-Proulx, Douglas F. Nixon, +Several Additional Authors

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Background: The outbreak of Zika virus (ZIKV) infection in Brazil has raised concerns that infection during pregnancy could cause microcephaly and other severe neurodevelopmental malformations in the fetus. The mechanisms by which ZIKV causes fetal abnormalities are largely unknown. The importance of pre-infection with dengue virus (DENV), or other flaviviruses endemic to Brazil, remains to be investigated. It has been reported that antibodies directed against DENV can increase ZIKV infectivity by antibody dependent enhancement (ADE), suggesting that a history of prior DENV infection might worsen the outcome of ZIKV infection.

Methods: We used bioinformatics tools to design 18 peptides from …

Inhibiting Dna Methylation Activates Cancer Testis Antigens And Expression Of The Antigen Processing And Presentation Machinery In Colon And Ovarian Cancer Cells., Cornelia Siebenkäs, Katherine B Chiappinelli, Angela A Guzzetta, Anup Sharma, Jana Jeschke, Rajita Vatapalli, Stephen B Baylin, Nita Ahuja

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Innovative therapies for solid tumors are urgently needed. Recently, therapies that harness the host immune system to fight cancer cells have successfully treated a subset of patients with solid tumors. These responses have been strong and durable but observed in subsets of patients. Work from our group and others has shown that epigenetic therapy, specifically inhibiting the silencing DNA methylation mark, activates immune signaling in tumor cells and can sensitize to immune therapy in murine models. Here we show that colon and ovarian cancer cell lines exhibit lower expression of transcripts involved in antigen processing and presentation to immune cells …

Enriched Environment And Stress Exposure Influence Splenic B Lymphocyte Composition., Blake T Gurfein, Burcu Hasdemir, Jeffrey M Milush, Chadi Touma, Rupert Palme, Douglas F Nixon, Nicholas Darcel, Frederick M Hecht, Aditi Bhargava

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Prolonged chronic stress has deleterious effects on immune function and is associated with numerous negative health outcomes. The spleen harbors one-fourth of the body’s lymphocytes and mediates both innate and adaptive immune responses. However, the subset of splenic lymphocytes that respond, either adaptively or maladaptively, to various stressors remains largely unknown. Here we investigated the effects of unpredictable chronic mild stress (CMS) exposure on spleen composition in male mice housed in two different caging conditions: standard caging (Cntl) and enriched environment (EE). EE-caged mice exhibited the greatest absolute number of splenocytes and CMS exposure significantly lowered splenocyte numbers in both …

Fit For Genomic And Proteomic Purposes: Sampling The Fitness Of Nucleic Acid And Protein Derivatives From Formalin Fixed Paraffin Embedded Tissue., Anna Yakovleva, Jordan L Plieskatt, Sarah Jensen, Razan Humeida, Jonathan Lang, Guangzhao Li, Paige Bracci, Sylvia Silver, Jeffrey Michael Bethony

Microbiology, Immunology, and Tropical Medicine Faculty Publications

The demand for nucleic acid and protein derivatives from formalin-fixed paraffin-embedded (FFPE) tissue has greatly increased due to advances in extraction and purification methods, making these derivatives available for numerous genomic and proteomic platforms. Previously, DNA, RNA, microRNA (miRNA), or protein derived from FFPE tissue blocks were considered “unfit” for such platforms, as the process of tissue immobilization by FFPE resulted in cross-linked, fragmented, and chemically modified macromolecules. We conducted a systematic examination of nucleic acids and proteins co-extracted from 118 FFPE blocks sampled from the AIDS and Cancer Specimen Resource (ACSR) at The George Washington University after stratification by …

A Modified Fasp Protocol For High-Throughput Preparation Of Protein Samples For Mass Spectrometry., Jeremy Potriquet, Marut Laohaviroj, Jeffrey M Bethony, Jason Mulvenna

Microbiology, Immunology, and Tropical Medicine Faculty Publications

o facilitate high-throughput proteomic analyses we have developed a modified FASP protocol which improves the rate at which protein samples can be processed prior to mass spectrometry. Adapting the original FASP protocol to a 96-well format necessitates extended spin times for buffer exchange due to the low centrifugation speeds tolerated by these devices. However, by using 96-well plates with a more robust polyethersulfone molecular weight cutoff membrane, instead of the cellulose membranes typically used in these devices, we could use isopropanol as a wetting agent, decreasing spin times required for buffer exchange from an hour to 30 minutes. In a …

Schistosoma Mansoni Reinfection: Analysis Of Risk Factors By Classification And Regression Tree (Cart) Modeling., Andréa Gazzinelli, Roberta Oliveira-Prado, Leonardo Ferreira Matoso, Bráulio M Veloso, Gisele Andrade, Helmut Kloos, Jeffrey M Bethony, Renato M Assunção, Rodrigo Correa-Oliveira

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Praziquantel (PZQ) is an effective chemotherapy for schistosomiasis mansoni and a mainstay for its control and potential elimination. However, it does not prevent against reinfection, which can occur rapidly in areas with active transmission. A guide to ranking the risk factors for Schistosoma mansoni reinfection would greatly contribute to prioritizing resources and focusing prevention and control measures to prevent rapid reinfection. The objective of the current study was to explore the relationship among the socioeconomic, demographic, and epidemiological factors that can influence reinfection by S. mansoni one year after successful treatment with PZQ in school-aged children in Northeastern Minas …

Mycobacterium Tuberculosis Reactivates Latent Hiv-1 In T Cells In Vitro, Erica Larson, Camille Novis, Laura Martins, Amanda Macedo, Kadyn Kimball, Alberto Bosque, Vincent Planelles, Louis Barrows

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Following proviral integration into the host cell genome and establishment of a latent state, the human immunodeficiency virus type 1 (HIV-1) can reenter a productive life cycle in response to various stimuli. HIV-1 reactivation occurs when transcription factors, such as nuclear factor-κB (NF-κB), nuclear factor of activated T cells (NFAT), and activator protein -1 (AP-1), bind cognate sites within the long terminal repeat (LTR) region of the HIV-1 provirus to promote transcription. Interestingly, pattern recognition receptors (PRRs) that recognize pathogen-associated molecular patterns (PAMPs) can reactivate latent HIV-1 through activation of the transcription factor NF-κB. Some PRRs are expressed on central …

Ancylostoma Ceylanicum Infective Third-Stage Larvae Are Activated By Co-Culture With Ht-29-Mtx Intestinal Epithelial Cells, Caitlin Feather, John M. Hawdon, John March

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Background

Human hookworm larvae arrest development until they enter an appropriate host. This makes it difficult to access the larvae for studying larval development or host-parasite interactions. While there are in vivo and in vitro animal models of human hookworm infection, there is currently no human, in vitro model. While animal models have provided much insight into hookworm biology, there are limitations to how closely this can replicate human infection. Therefore, we have developed a human, in vitro model of the initial phase of hookworm infection using intestinal epithelial cell culture.

Results

Co-culture of the human hookworm Ancylostoma ceylanicum with …

Distinct Neural Bases Of Disruptive Behavior And Autism Symptom Severity In Boys With Autism Spectrum Disorder., Y.J. Daniel Yang, Denis G Sukhodolsky, Jiedi Lei, Eran Dayan, Kevin A. Pelphrey, Pamela Ventola

Pediatrics Faculty Publications

BACKGROUND: Disruptive behavior in autism spectrum disorder (ASD) is an important clinical problem, but its neural basis remains poorly understood. The current research aims to better understand the neural underpinnings of disruptive behavior in ASD, while addressing whether the neural basis is shared with or separable from that of core ASD symptoms.

METHODS: Participants consisted of 48 male children and adolescents: 31 ASD (7 had high disruptive behavior) and 17 typically developing (TD) controls, well-matched on sex, age, and IQ. For ASD participants, autism symptom severity, disruptive behavior, anxiety symptoms, and ADHD symptoms were measured. All participants were scanned while …

Endotypes Of Difficult-To-Control Asthma In Inner-City African American Children., K R Brown, R Z Krouse, A Calatroni, C M Visness, U Sivaprasad, C M Kercsmar, E C Matsui, J B West, M M Makhija, M A Gill, H Kim, M Kattan, D Pillai, J E Gern, W W Busse, A Togias, A H Liu, G K Khurana Hershey

Pediatrics Faculty Publications

African Americans have higher rates of asthma prevalence, morbidity, and mortality in comparison with other racial groups. We sought to characterize endotypes of childhood asthma severity in African American patients in an inner-city pediatric asthma population. Baseline blood neutrophils, blood eosinophils, and 38 serum cytokine levels were measured in a sample of 235 asthmatic children (6-17 years) enrolled in the NIAID (National Institute of Allergy and Infectious Diseases)-sponsored Asthma Phenotypes in the Inner City (APIC) study (ICAC (Inner City Asthma Consortium)-19). Cytokines were quantified using a MILLIPLEX panel and analyzed on a Luminex analyzer. Patients were classified as Easy-to-Control or …

Mycn Amplification Is Associated With Repressed Cellular Immunity In Neuroblastoma: An In Silico Immunological Analysis Of Target Database, Peng Zhang, Xiaofang Wu, Moushumi Basu, Chen Dong, Pan Zhang, Yang Liu, Anthony D. Sandler

Pediatrics Faculty Publications

Purpose: RNA and DNA sequencing data are traditionally used to discern intrinsic cellular pathways in cancer pathogenesis, their utility for investigating the tumor microenvironment (TME) has not been fully explored. This study explores the use of sequencing data to investigate immunity within the TME.

Experimental design: Here, we use immune cell fraction estimation analysis to determine the immune profiles in the microenvironment of neuroblastoma (NB) based on RNA-seq data in the TARGET database. The correlation between immune cell transcripts and prognosis in pediatric NB is also investigated.

Results: In silico analysis revealed a strong inverse correlation between MYCNamplification and …

Disorders Of Metal Metabolism, Carlos Ferreira, William A. Gahl

Pediatrics Faculty Publications

Trace elements are chemical elements needed in minute amounts for normal physiology. Some of the physiologically relevant trace elements include iodine, copper, iron, manganese, zinc, selenium, cobalt and molybdenum. Of these, some are metals, and in particular, transition metals. The different electron shells of an atom carry different energy levels, with those closest to the nucleus being lowest in energy. The number of electrons in the outermost shell determines the reactivity of such an atom. The electron shells are divided in sub-shells, and in particular the third shell has s, p and d sub-shells. Transition metals are strictly defined as …

Composite Iron Oxide–Prussian Blue Nanoparticles For Magnetically Guided T1-Weighted Magnetic Resonance Imaging And Photothermal Therapy Of Tumors, Shraddha Kale, Rachel Burga, Elizabeth E. Sweeney, Zungho Zun, Raymond Sze, Anthony Tuesca, J Anand Subramony, Rohan Fernandes

Radiology Faculty Publications

Theranostic nanoparticles offer the potential for mixing and matching disparate diagnostic and therapeutic functionalities within a single nanoparticle for the personalized treatment of diseases. In this article, we present composite iron oxide-gadolinium-containing Prussian blue nanoparticles (Fe3O4@GdPB) as a novel theranostic agent for T1-weighted magnetic resonance imaging (MRI) and photothermal therapy (PTT) of tumors. These particles combine the well-described properties and safety profiles of the constituent Fe3O4 nanoparticles and gadolinium-containing Prussian blue nanoparticles. The Fe3O4@GdPB nanoparticles function both as effective MRI contrast agents and PTT agents as determined by characterizing studies performed in vitro and retain their properties in the presence …

H-Ipse Is A Pathogen-Secreted Host Nucleus Infiltrating Protein (Infiltrin) 3 Expressed Exclusively By The Schistosoma Haematobium Egg Stage, Luke Pennington, Abdulaziz Alouffi, Evaristus Mbanefo, Debalina Ray, David Heery, Theodore Jardetzky, Michael Hsieh, Franco Falcone

Urology Faculty Publications

Urogenital schistosomiasis, caused by the parasitic trematode Schistosoma haematobium, affects over 112 million people worldwide. As with S. mansoniinfections, the pathology in urogenital schistosomiasis is mainly related to the egg stage, which induces granulomatous inflammation of affected tissues. Schistosoma eggs and their secretions have been studied extensively for the related S. mansoniorganism which is more amenable to laboratory studies. Indeed, we have shown that IPSE/alpha-1 (M-IPSE herein), a major protein secreted from S .mansoni eggs, can infiltrate host cells. Although M-IPSE function is unknown, its ability to translocate to their nucleus and bind DNA suggests a possible …

Law-Based Arguments And Messages To Advocate For Later School Start Time Policies In The United States, Clark J. Lee, Dennis M. Nolan, Steven W. Lockley, Brent Pattison

Homeland Security Publications

The increasing scientific evidence that early school start times are harmful to the health and safety of teenagers has generated much recent debate about changing school start times policies for adolescent students. Although efforts to promote and implement such changes have proliferated in the United States in recent years, they have rarely been supported by law-based arguments and messages that leverage the existing legal infrastructure regulating public education and child welfare in the United States. Furthermore, the legal bases to support or resist such changes have not been explored in detail to date. This article provides an overview of how …

Neurovascular Unit Dysfunction And Blood-Brain Barrier Hyperpermeability Contribute To Schizophrenia Neurobiology: A Theoretical Integration Of Clinical And Experimental Evidence, S. Najjar, S. Pahlajani, V. De Sanctis, J. N.H. Stern, A. Najjar, D. Chong

Journal Articles

No abstract provided.

Microtubule-Targeting Agents Can Sensitize Cancer Cells To Ionizing Radiation By An Interphase-Based Mechanism, D. Markowitz, G. Ha, R. Ruggieri, M. Symons

Journal Articles

No abstract provided.

Repurposing Mebendazole As A Replacement For Vincristine For The Treatment Of Brain Tumors, M. De Witt, A. Gamble, D. Hanson, D. Markowitz, C. Powell, S. Al Dimassi, M. Atlas, J. Boockvar, R. Ruggieri, M. Symons

Journal Articles

No abstract provided.

Hemiataxia: A Novel Presentation Of Anti-Nmda Receptor Antibody Mediated Encephalitis In An Adolescent., Greg D Phillips, Gillian N Jones, Maureen Callaghan, Marc P Difazio

Neurology Faculty Publications

Anti-NMDA receptor antibody associated encephalitis as a cause of new-onset neuropsychiatric manifestations in children and adults can represent a significant diagnostic challenge for clinicians. Clinical signs often include encephalopathy, new-onset psychosis, and movement phenomenon. Although orofacial dyskinesias were initially identified as a characteristic movement phenomenon in this type of encephalitis, an expanded range of abnormalities has recently been reported, including isolated ataxia. We report a case of isolated hemiataxia in a young adult with mild initial psychiatric manifestations. A personal and family history of preceding neuropsychiatric symptoms produced diagnostic confusion and resulted in a significant diagnostic and therapeutic delay. Our …

The Effect Of Hiv Infection And Hcv Viremia On Inflammatory Mediators And Hepatic Injury-The Women's Interagency Hiv Study., Sheila M Keating, Jennifer L Dodge, Philip J Norris, John Heitman, Stephen J Gange, Audrey L French, Marshall J Glesby, Brian R Edlin, Patricia S Latham, Maria C Villacres, Ruth M Greenblatt, Marion G Peters

Pathology Faculty Publications

Hepatitis C virus infection induces inflammation and while it is believed that HIV co-infection enhances this response, HIV control may reduce inflammation and liver fibrosis in resolved or viremic HCV infection. Measurement of systemic biomarkers in co-infection could help define the mechanism of inflammation on fibrosis and determine if HIV control reduces liver pathology. A nested case-control study was performed to explore the relationship of systemic biomarkers of inflammation with liver fibrosis in HCV viremic and/or seropositive women with and without HIV infection. Serum cytokines, chemokines, growth factors and cell adhesion molecules were measured in HIV uninfected (HIV-, n = …

Human Liver Sinusoid On A Chip For Hepatitis B Virus Replication Study, Young Bok (Abraham) Kang, Siddhartha Rawat, Nicholas Duchemin, Michael Bouchard, Moses Noh

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

We have developed a miniature human liver (liver-sinusoid-on-a-chip) model using a dual microchannel separated by a porous membrane. Primary human hepatocytes and immortalized bovine aortic endothelial cells were co-cultured on opposite sides of a microporous membrane in a dual microchannel with continuous perfusion. Primary human hepatocytes in this system retained their polygonal morphology for up to 26 days, while hepatocytes cultured in the absence of bovine aortic endothelial cells lost their morphology within a week. In order to demonstrate the utility of our human-liver-sinusoid-on-a-chip, human hepatocytes in this system were directly infected by Hepatitis B Virus (HBV). Expression of the …