Steve Burmaster, Robert E. Smith, David Eick, Elisabet L. Kostoryz, David M. Yourtee,
... A.Search for more papers by this authorDavid Eick, David Eick School of Dentistry, University of Missouri—Kansas ... A.Search for more papers by this authorDavid Eick, David Eick School of Dentistry, University of Missouri—Kansas City, Kansas City, MO 64108, U.S.A.Search for more papers by this authorElisabet L. Kostoryz, Elisabet L. Kostoryz School of Pharmacy, University of Missouri—Kansas City, Kansas City, MO 64108, U.S.A.Search for more papers by this authorDavid Yourtee, Corresponding Author David Yourtee [email protected] School of Pharmacy, University of ...
Tópico(s): Effects and risks of endocrine disrupting chemicals
2002 - Wiley | Macromolecular Bioscience
Elisabet L. Kostoryz, Pei Tong, A. F. STRAUTMAN, Alan G. Glaros, J. David Eick, David M. Yourtee,
Many reports have demonstrated inflammation after the placement of dental restorations. To explain this side-effect, we studied a biomarker in the inflammatory response. The intercellular adhesion molecule-1 (ICAM-1) is a key mediator for recruitment of leukocytes to the site of inflammation. Therefore, we investigated whether methacrylates (a BISGMA-based dental resin, BISGMA, and MAA) and Cyracure™ UVR 6105, an epoxy monomer, could alter ICAM-1 expression in unstimulated and TNF-a-stimulated endothelial ...
Tópico(s): Immune Response and Inflammation
2001 - SAGE Publishing | Journal of Dental Research
T. A. Bean, WJ Zhuang, Pei Tong, J. David Eick, David M. Yourtee,
Abstract Current in vitro biocompatibility methods do not evaluate the degradation of biomaterials after contact with enzymes that might be present in the oral or systemic environment. In this study, two methods of in vitro enzyme degradation and a method for the separation of the degradative products by high performance thinlayer chromatography (HPTLC) are reported. In the first method two dental adhesives, Scotchbond and Scotchbond II, and two dental composites, Helimolar and P‐50, were evaluated. ...
Tópico(s): biodegradable polymer synthesis and properties
1994 - Wiley | Journal of Biomedical Materials Research
James M. Mixson, J. David Eick, David L. Moore, Daniel E. Tira,
Abstract Studies have shown that cavity design and dentinal bonding agents can affect composite resin microleakage. This study compared the microleakage at cementum-dentin margins of ☐- and Vshaped preparations restored with two different bonding agents. Twenty freshly extracted, human third molars were prepared with one ☐-shaped and one V-shaped preparation on the mesial or distal surface. Occlusal margins were terminated in etched enamel and gingival margins were in cementum-dentin. There was no statistically ...
Tópico(s): Dental Implant Techniques and Outcomes
1992 - Elsevier BV | Journal of Prosthetic Dentistry
Robert E. Ten Eick, David Whalley, H Rasmussen,
Our purpose in this article is to examine the hypothesis that both myocardial disease and ischemia can alter the electrophysiologic function of the ion channels responsible for the cellular electrical activity of the heart. Changes in the intracellular and extracellular milieus occur during ischemia and can alter the electrophysiology of several species of ionic channels and the cellular electrophysiologic activity of cardiac myocytes. Included are 1) changes in extracellular [K+] and pH and in intracellular [ ...
Tópico(s): Cardiac electrophysiology and arrhythmias
1992 - Wiley | The FASEB Journal
Rebecca Hendrix, Charles J. Eick, David Shannon,
Creative drama activities designed to help children learn difficult science concepts were integrated into an inquiry-based elementary science program. Children (n = 38) in an upper elementary enrichment program at one primary school were the participants in this action research. The teacher-researcher taught students the Full Option Science System™ (FOSS) modules of sound (fourth grade) and solar energy (fifth grade) with the integration of creative drama activities in treatment classes. A 2 × 2 × (2) Mixed ...
Tópico(s): Education and Critical Thinking Development
2012 - Taylor & Francis | Journal of Science Teacher Education
Matthew C. Johns, Angelia A. Eick, David L. Blazes, Seung‐Eun Lee, Christopher L. Perdue, Robert Lipnick, Kelly G. Vest, Kevin L. Russell, Robert F. DeFraites, José L. Sánchez,
Introduction A novel A/H1N1 virus is the cause of the present influenza pandemic; vaccination is a key countermeasure, however, few data assessing prior seasonal vaccine effectiveness (VE) against the pandemic strain of H1N1 (pH1N1) virus are available. Materials and Methods Surveillance of influenza-related medical encounter data of active duty military service members stationed in the United States during the period of April–October 2009 with comparison of pH1N1-confirmed cases and location and ...
Tópico(s): COVID-19 epidemiological studies
2010 - Public Library of Science | PLoS ONE
Cassandra M. Miller‐Butterworth, Geeta N. Eick, David S. Jacobs, M. Corrie Schoeman, Eric H. Harley,
The Natal long-fingered bat (Miniopterus natalensis) and lesser long-fingered bat (M. fraterculus) are morphologically almost indistinguishable and occur sympatrically over much of their southern African range. This raises the possibility that they are sister taxa. We employed a multidisciplinary approach to examine their taxonomic relationship to one another and to other Miniopterus species, whose global phylogeny requires review. We examined echolocation, morphological, and dietary differences between ...
Tópico(s): Species Distribution and Climate Change
2005 - Oxford University Press | Journal of Mammalogy
Geeta N. Eick, David S. Jacobs, Conrad A. Matthee,
Bats (Order Chiroptera), the only mammals capable of powered flight and sophisticated laryngeal echolocation, represent one of the most species-rich and ubiquitous orders of mammals. However, phylogenetic relationships within this group are poorly resolved. A robust evolutionary tree of Chiroptera is essential for evaluating the phylogeny of echolocation within Chiroptera, as well as for understanding their biogeographical history. We generated 4 kb of sequence data from portions of four novel nuclear ...
Tópico(s): Genomics and Phylogenetic Studies
2005 - Oxford University Press | Molecular Biology and Evolution
Gregory A. Michelotti, Emil F. Michelotti, Andrea Pullner, Robert Duncan, Dirk Eick, David Levens,
Transcription activation and repression of eukaryotic genes are associated with conformational and topological changes of the DNA and chromatin, altering the spectrum of proteins associated with an active gene. Segments of the human c-myc gene possessing non-B structure in vivo located with enzymatic and chemical probes. Sites hypertensive to cleavage with single-strand-specific S1 nuclease or the single-strand-selective agent potassium permanganate included the major promoters P1 and P2 as well ...
Tópico(s): RNA and protein synthesis mechanisms
1996 - Taylor & Francis | Molecular and Cellular Biology
Elisabet L. Kostoryz, Pei Tong, Cecil C. Chappelow, J. David Eick, Alan G. Glaros, David M. Yourtee,
Objective: The objective of this study was to evaluate the effect of adding a spiroorthocarbonate (SOC) or a polyol on the cytotoxicity of epoxy-based dental resins. Methods: Resins contained one of the epoxies: diglycidyl ether Bisphenol A (GY-6004); 3,4-epoxycyclohexanemethyl-3,4-epoxycyclohexane carboxylate (UVR-6105); vinyl cyclohexane dioxide (ERL-4206) or the three-epoxy mixture (Epoxy-M). The SOC was t/t-2,3,8,9-di(tetramethylene)-1,5,7,11-tetraoxaspiro[5.5]undecane (SOC). The polyols were polytetrahydrofuran ( ...
Tópico(s): Dental materials and restorations
1999 - Elsevier BV | Dental Materials
T. A. Bean, Wei C. Zhuang, Pei Tong, J. David Eick, Cecil C. Chappelow, David M. Yourtee,
Objectives. The purpose of this study was to compare a methylthiazole tetrazolium (MTT) dye colorimetric method with the standard 51Cr assay as methods of assessing cytotoxicity of dental materials. Methods. Two MTT-based colorimetric formats, test tube and 96-well microplate methods, were compared to the 51Cr release assay. A series of eigth dental materials were evaluated. Cytotoxicity profiles were determined for each test material. A TC50 value (Toxic Concentration required to kill 50% of the ...
Tópico(s): Animal testing and alternatives
1995 - Elsevier BV | Dental Materials
Elisabet L. Kostoryz, Pei Tong, Cecil C. Chappelow, Alan G. Glaros, J. David Eick, David M. Yourtee,
Abstract In development of photopolymerized expanding monomers with epoxy resin systems, there is a need for reactive expanding monomers that exert a good biocompatibility profile. The objective of this study was to evaluate the in vitro toxicology of new spiroorthocarbonates designed to be expanding monomers. The expanding monomers investigated were: trans/trans-2,3,8,9- di(tetramethylene)-1,5,7,11-tetraoxaspiro[5,5]undecane (DTM-TOSU), 5,5-diethyl-19-oxadispiro[1,3-dioxane-2,2′-1,3-dioxane-5′,4- ...
Tópico(s): Polymer Synthesis and Characterization
2000 - Taylor & Francis | Journal of Biomaterials Science Polymer Edition
James M. Mixson, J. David Eick, Robert P. Chappell, Daniel E. Tira, David L. Moore,
Investigators differ on the use of a two-surface or multiple-surface scoring methodology in sectional microleakage studies. This study compared microleakage scores using both two-surface and multiple-surface scoring methods for two preparation types and two different dentin bonding agents. Twenty freshly extracted molars each received one box-shaped and one V-shaped restoration on the mesial or distal surface. Each restoration was cut occlusogingivally into four sections, yielding eight surfaces ...
Tópico(s): Dental Erosion and Treatment
1991 - Elsevier BV | Dental Materials
... Part 2.”Battlestar Galactica Season 2.0. Writ. David Eick and Ronald D. Moore. Dir. Jeff Woolnough. Universal ... Gleaming: Part 1.”Battlestar Galactica Season 1. Writ. David Eick and Ronald D. Moore. Dir. Michael Rymer. Universal ... Gleaming: Part 2.”Battlestar Galactica Season 1. Writ. David Eick and Ronald D. Moore. Dir. Michael Rymer. Universal ...
Tópico(s): Gothic Literature and Media Analysis
2011 - Wiley | The Journal of Popular Culture
Elisabet L. Kostoryz, J. David Eick, Alan G. Glaros, Barbara M. Judy, Wade V. Welshons, Steve Burmaster, David M. Yourtee,
Unpolymerized dental monomers can leach out into the oral biophase and are bioavailable for metabolism. We hypothesize that metabolites would be less toxic than parent monomers. We first identified the formation of metabolites from bisphenol F diglycidyl ether (BFDGE) and Bisphenol A glycidyl methacrylate (BISGMA) after their exposure to liver S9 fractions. Then, the metabolites and parent compounds were subjected to in vitro cytotoxicity, mutagenicity, and estrogenicity studies. Bisphenol A bis(2, ...
Tópico(s): Chemistry and Chemical Engineering
2003 - SAGE Publishing | Journal of Dental Research
Shawn E. Rosenquist, W. Cully Hession, Matthew J. Eick, D. H. Vaughan,
Rosenquist, Shawn E., W. Cully Hession, Matthew J. Eick, and David H. Vaughan, 2011. Field Application of a Renewable ...
Tópico(s): Wastewater Treatment and Reuse
2011 - Wiley | JAWRA Journal of the American Water Resources Association
Alison T. Brenner, Laura Cubillos, Katherine R. Birchard, Caleb Doyle-Burr, J. David Eick, Louise M. Henderson, Laura Jones, Michael Massaro, Bailey Minish, Paul L. Molina, Michael Pignone, Shana Ratner, M. Patricia Rivera, Daniel S. Reuland,
ABSTRACT Expert groups recommend annual chest computed tomography for lung cancer screening (LCS) in high-risk patients. Lung cancer screening in primary care is a complex process that includes identification of the at-risk population, comorbidity assessment, and shared decision making. We identified three key processes required for high-quality screening implementation in our academic primary care practice: (1) systematic collection of lifetime cumulative smoking history to identify potentially eligible ...
Tópico(s): Global Cancer Incidence and Screening
2017 - Lippincott Williams & Wilkins | Journal for Healthcare Quality
Lianxiang Bi, Mohamed N. Rahaman, Delbert E. Day, Zackary Brown, Christopher Samujh, Xin Liu, Ali Mohammad‐Khāh, Vladimir Dusevich, J. David Eick, Lynda F. Bonewald,
Borate bioactive glasses are biocompatible and enhance new bone formation, but the effect of their microstructure on bone regeneration has received little attention. In this study scaffolds of borate bioactive glass (1393B3) with three different microstructures (trabecular, fibrous, and oriented) were compared for their capacity to regenerate bone in a rat calvarial defect model. 12 weeks post-implantation the amount of new bone, mineralization, and blood vessel area in the scaffolds were evaluated ...
Tópico(s): Facial Trauma and Fracture Management
2013 - Elsevier BV | Acta Biomaterialia
Lianxiang Bi, Steve Jung, Delbert E. Day, Katie Neidig, Vladimir Dusevich, David Eick, Lynda F. Bonewald,
Abstract Bioactive glasses are biocompatible materials that convert to hydroxyapatite in vivo , and potentially support bone formation, but have mainly been available in particulate and not scaffold form. In this study, borosilicate and borate bioactive glass scaffolds were evaluated in critical‐sized rat calvarial defects. Twelve‐week‐old rats were implanted with 45S5 silicate glass particles and scaffolds of 1393 silicate, 1393B1 borosilicate, and 1393B3 borate glass. After 12 weeks, the defects ...
Tópico(s): Facial Trauma and Fracture Management
2012 - Wiley | Journal of Biomedical Materials Research Part A
... television series) (2004–2009) British Sky Broadcasting (BSkyB), David Eick Productions, R&D TV, Stanford Pictures (II), USA [ ...
Tópico(s): Sexuality, Behavior, and Technology
2011 - Taylor & Francis | Feminist Media Studies
Elisabet L. Kostoryz, Qiqi Zhu, Hong Zhao, Alan G. Glaros, J. David Eick,
The potential reactivity and structural properties of oxiranes (epoxides) are advantageous when considering polymers for medical devices. However, epoxy compounds are widely known to have genotoxic properties. The objective of the study was to evaluate the cytotoxicity and primary DNA damage effects induced by oxiranes and siloranes, silicon containing oxiranes. The siloranes, Ph-Sil, Tet-Sil, and Sil-Mix and the oxiranes Cyracure UVR-6105 and 1,3-bis[2-(2-oxiranylmethyl) phenoxy]pentane (OMP-5) were ...
Tópico(s): Marine Biology and Environmental Chemistry
2007 - Elsevier BV | Mutation Research/Genetic Toxicology and Environmental Mutagenesis
Cielo Barragan‐Adjemian, Daniel P. Nicolella, V. Dusevich, Mark R. Dallas, J. David Eick, Lynda F. Bonewald,
The mechanisms whereby bone mineralizes are unclear. To study this process, we used a cell line, MLO-A5, which has highly elevated expression of markers of the late osteoblast such as alkaline phosphatase, bone sialoprotein, parathyroid hormone type 1 receptor, and osteocalcin and will mineralize in sheets, not nodules. In culture, markers of osteocytes and dendricity increase with time, features of differentiation from a late osteoblast to an early osteocyte. Mineral formation was examined using ...
Tópico(s): Alkaline Phosphatase Research Studies
2006 - Springer Science+Business Media | Calcified Tissue International
Jaber Akbar, Cynthia S. Petrie, Mary P. Walker, Karen Williams, J. David Eick,
Purpose : The purpose of this study was to compare marginal discrepancies of Cerec 3 CAD/CAM composite crowns, fabricated on human prepared teeth with two different finish line designs, chamfer and shoulder. Materials and Methods : Sixteen human molar teeth were used to prepare full crowns. Eight teeth were prepared with a 1‐mm‐wide chamfer finish line and the other eight with a 1.2‐ to 1.5‐mm circumferential shoulder. Cerec 3 crowns were fabricated from optical impressions using Paradigm MZ100 composite ...
Tópico(s): Innovations in Concrete and Construction Materials
2006 - Wiley | Journal of Prosthodontics
John H. Purk, Vladimir Dusevich, Alan G. Glaros, J. David Eick,
Adhesive analysis, under the scanning electron microscope of microtensile specimens that failed through the adhesive interface, was conducted to evaluate the amount of voids present at the axial versus gingival cavity walls of class II composite restorations restored under in vivo and in vitro conditions. Five patients received class II resin composite restorations, under in vivo and in vitro conditions. A total of 14 premolar teeth yielded 59 (n = 59) microtensile adhesive specimens that fractured ...
Tópico(s): Dental Implant Techniques and Outcomes
2006 - Elsevier BV | Dental Materials
J. David Eick, Shiva Kotha, Cecil C. Chappelow, Kathleen V. Kilway, Gregory J. Giese, Alan G. Glaros, C. Pinzino,
To evaluate properties of silorane-based resins and composites containing a stress reducing monomer. Resin mixtures and composites were formulated containing (a) a developmental stress reducing monomer [TOSU; Midwest Research Institute]; (b) Sil-Mix (3M-ESPE); (c) photo cationic initiator system. Standard BISGMA/TEGDMA resin (B/T) and composite (Filtek Z250) were used as controls. Polymerization volume change was measured using a NIST mercury dilatometer and polymerization stress using an Enduratec mechanical ...
Tópico(s): Dental Research and COVID-19
2006 - Elsevier BV | Dental Materials
Yongbo Lu, Ling Ye, Shibin Yu, Shubin Zhang, Yixia Xie, Marc D. McKee, Yan Chun Li, Juan Kong, J. David Eick, Sarah L. Dallas, Jian Q. Feng,
Dentin matrix protein 1 (DMP1) is expressed in both pulp and odontoblast cells and deletion of the Dmp1 gene leads to defects in odontogenesis and mineralization. The goals of this study were to examine how DMP1 controls dentin mineralization and odontogenesis in vivo. Fluorochrome labeling of dentin in Dmp1-null mice showed a diffuse labeling pattern with a 3-fold reduction in dentin appositional rate compared to controls. Deletion of DMP1 was also associated with abnormalities in the dentinal tubule ...
Tópico(s): Oral and Maxillofacial Pathology
2006 - Elsevier BV | Developmental Biology
Andrew J. Holder, Lin Ye, J. David Eick, Cecil C. Chappelow,
Abstract Refractive index (RI) is an important optical property for polymer matrices, especially when the color or tint of the cured material is of interest. This is certainly the case for dental restorative applications. In this work, results are presented for a quantitative–structure activity relationship derived from relevant semiempirical quantum mechanical information. This model predicts the RI for a wide variety of polymer matrices using representative structures of polymers, including resin ...
Tópico(s): Crystallography and molecular interactions
2006 - Wiley | QSAR & Combinatorial Science
Matthew D. Miller, David M. Yourtee, Alan G. Glaros, Cecil C. Chappelow, J. David Eick, Andrew J. Holder,
Allergic contact dermatitis (ACD) results in inflammation of the skin due to sensitization of the immunologic system to a particular substance. The sensitization process is limited by the compound's ability to both permeate and react with proteins in the integumentary system. Currently, only in vivo animal tests such as the local lymph node assay (LLNA) are recognized by regulatory authorities for risk assessment of ACD. A quantitative structure−activity relationship has been developed to predict ...
Tópico(s): Antimicrobial agents and applications
2005 - American Chemical Society | Journal of Chemical Information and Modeling
J. David Eick, Robert E. Smith, C. Pinzino, Elisabet L. Kostoryz,
Siloranes (silicon-based monomers with oxirane functionality) are investigated as matrix resins for new low shrinkage/stress dental composites. Compounds containing oxirane groups are known to be reactive with water, which could impart instability to the composite. To test the stability of siloranes by measuring changes in the chemical structure of the oxirane group in aqueous environments. Two siloranes (PH-SIL and TET-SIL) and their 1:1 mixture (SIL-MIX) were evaluated (n=2–3). Siloranes were mixed ...
Tópico(s): Photopolymerization techniques and applications
2005 - Elsevier BV | Journal of Dentistry