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CLINICAL ORTHO

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https://www.readbyqxmd.com/read/30078974/comparisons-of-metabolite-profile-from-paired-serum-and-ethylenediaminetetraacetic-acid-plasma-samples-using-dry-chemistry-technology-an-emergency-department-perspective
#1
Lokesh Kumar Sharma, Deep Dutta, Neera Sharma, Bhaskar Thakur
BACKGROUND: No data is available evaluating the difference in serum versus plasma sample assay of commonly tested parameters in the emergency department, where the sample processing time can be significantly reduced if plasma is used for analysis instead of conventionally used serum. Hence, this study aimed to evaluate the differences in serum versus plasma sample estimation of commonly evaluated biochemical parameters using dry chemistry technology. MATERIALS AND METHODS: Paired blood samples were collected from a single venipuncture of 405 patients admitted to the emergency department...
July 2018: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/30023741/expedient-synthesis-of-indolo-2-3-b-quinolines-chromeno-2-3-b-indoles-and-3-alkenyl-oxindoles-from-3-3-diindolylmethanes-and-evaluation-of-their-antibiotic-activity-against-methicillin-resistant-staphylococcus-aureus
#2
Chandrasekhar Challa, Jaice Ravindran, Mohini Mohan Konai, Sunil Varughese, Jubi Jacob, B S Dileep Kumar, Jayanta Haldar, Ravi S Lankalapalli
Easily accessible 3,3'-diindolylmethanes (DIMs) were utilized to generate a focused library of indolo[2,3- b ]quinolines ( 2 ), chromeno[2,3- b ]indoles ( 3 ), and 3-alkenyl-oxindoles ( 4 ) under 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-mediated oxidative conditions. DIMs with ortho-NHTosyl (NHTs) phenyl group afforded indolo[2,3- b ]quinolines ( 2 ), whereas DIMs with ortho-hydroxy phenyl groups yielded chromeno[2,3- b ]indoles ( 3 ) and 3-alkenyl-oxindoles ( 4 ). The mild conditions and excellent yields of the products make this method a good choice to access a diverse library of bioactive molecules from a common starting material...
August 31, 2017: ACS Omega
https://www.readbyqxmd.com/read/30006866/effect-of-prior-biologic-use-on-cost-effectiveness-of-brodalumab-vs-ustekinumab-for-treatment-of-moderate-to-severe-psoriasis-in-the-united-states
#3
Steven R Feldman, Shipra Rastogi, Jay Lin
INTRODUCTION: Clinical trials have shown brodalumab to have better efficacy than ustekinumab for the treatment of moderate-to-severe psoriasis. An estimation of the cost-effectiveness of brodalumab vs. ustekinumab is warranted and may be useful for treatment decision-making processes, especially in the context of the cost considerations of the current US healthcare system. Therefore, we compared the cost-effectiveness of brodalumab with ustekinumab for treatment of moderate-to-severe psoriasis in biologic-naïve and biologic-experienced patients in the USA...
July 13, 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/29898057/glass-ionomer-cements-can-be-used-for-bonding-orthodontic-brackets-after-cancer-radiation-treatment
#4
Gabriela Cristina Santin, Alexandra Mussolino de Queiroz, Regina Guenka Palma-Dibb, Harley Francisco de Oliveira, Paulo Nelson Filho, Fábio Lourenço Romano
Patients undergoing radiotherapy treatment present more susceptibility to dental caries and the use of an orthodontic device increases this risk factor due to biofilm accumulation around the brackets. The objective of this study was to evaluate the shear bond strength to irradiated permanent teeth of orthodontic brackets bonded with conventional glass ionomer cement and resin-modified glass ionomer cement due to the fluoride release capacity of these materials. Ninety prepared human premolars were divided into 6 groups (n=15), according to the bonding material and use or not of radiation: CR: Transbond XT composite resin; RMGIC: Fuji Ortho LC conventional glass ionomer cement; GIC: Ketac Cem Easymix resin-modified glass ionomer cement...
March 2018: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29890387/total-synthesis-of-acylphloroglucinols-and-their-antibacterial-activities-against-clinical-isolates-of-multi-drug-resistant-mdr-and-methicillin-resistant-strains-of-staphylococcus-aureus
#5
M Mukhlesur Rahman, Winnie K P Shiu, Simon Gibbons, John P Malkinson
Bioassay-directed drug discovery efforts focusing on various species of the genus Hypericum led to the discovery of a number of new acylphloroglucinols including (S,E)-1-(2-((3,7-dimethylocta-2,6-dien-1-yl)oxy)-4,6-dihydroxyphenyl)-2-methylbutan-1-one (6, olympicin A) from H. olympicum, with MICs ranging from 0.5 to 1 mg/L against a series of clinical isolates of multi-drug-resistant (MDR) and methicillin-resistant Staphylococcus aureus (MRSA) strains. The promising activity and interesting chemistry of olympicin A prompted us to carry out the total synthesis of 6 and a series of analogues in order to assess their structure-activity profile as a new group of antibacterial agents...
July 15, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29877984/therapeutic-protocol-for-orthosurgical-management-of-class-iii-malocclusion-in-patients-with-cleidocranial-dysostosis
#6
Fernando André Barth, Angelo Menuci Melo, Renata Rodrigues Almeida-Pedrin, Victor de Miranda Ladewig, Ana Cláudia de Castro Ferreira Conti
Cleidocranial dysostosis (CCD) is a congenital skeletal disorder with significant manifestations in facial and dental development. Patients are affected with CCD present maxillary deficiency, late dental eruption, and supernumerary teeth. Early and multidisciplinary approach is necessary to treat CCD patients, especially to manage dental eruption and Class III malocclusion with maxillary deficiency. Several orthodontic and surgical interventions are performed to enable traction and extraction of teeth. Yet the maxillary deficiency may be protracted followed by orthodontic dental compensation...
June 5, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29851810/difference-between-manual-and-digital-measurements-of-dental-arches-of-orthodontic-patients
#7
COMPARATIVE STUDY
Sandra Isabel Jiménez-Gayosso, Edith Lara-Carrillo, Saraí López-González, Carlo Eduardo Medina-Solís, Rogelio José Scougall-Vilchis, César Tadeo Hernández-Martínez, Gabriel Eduardo Colomé-Ruiz, Mauricio Escoffié-Ramirez
The objective of this study was to compare the differences between the measurements performed manually to those obtained using a digital model scanner of patients with orthodontic treatment.A cross-sectional study was performed in a sample of 30 study models from patients with permanent dentition who attended a university clinic between January 2010 and December 2015. For the digital measurement, a Maestro 3D Ortho Studio scanner (Italy) was used and Mitutoyo electronic Vernier calipers (Kawasaki, Japan) were used for manual measurement...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29850512/computerized-casts-for-orthodontic-purpose-using-powder-free-intraoral-scanners-accuracy-execution-time-and-patient-feedback
#8
Maria Francesca Sfondrini, Paola Gandini, Maurizio Malfatto, Francesco Di Corato, Federico Trovati, Andrea Scribante
Introduction: Intraoral scanners allow direct images of oral situation, with fewer steps than conventional impressions. The purpose of this study was to compare the accuracy of digital impressions, traditional impressions, and digitalization of full-arch gypsum models, to evaluate timing of different methods and finally to study perception of patients about conventional and digital impression techniques. Methods: Dental arches of fourteen patients were evaluated by alginate impression, titanium dioxide powder-free intraoral scanning (Trios, 3Shape), and digitalization obtained from gypsum models using the same scanner...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29792672/biosynthesis-of-lincosamide-antibiotics-reactions-associated-with-degradation-and-detoxification-pathways-play-a-constructive-role
#9
Daozhong Zhang, Zhijun Tang, Wen Liu
Natural products typically are small molecules produced by living organisms. These products possess a wide variety of biological activities and thus have historically played a critical role in medicinal chemistry and chemical biology either as chemotherapeutic agents or as useful tools. Natural products are not synthesized for use by human beings; rather, living organisms produce them in response to various biochemical processes and environmental concerns, both internal and external. These processes/concerns are often dynamic and thus motivate the diversification, optimization, and selection of small molecules in line with changes in biological function...
June 19, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29787262/discovery-of-novel-pazopanib-based-hdac-and-vegfr-dual-inhibitors-targeting-cancer-epigenetics-and-angiogenesis-simultaneously
#10
Jie Zang, Xuewu Liang, Yongxue Huang, Yuping Jia, Xiaoyang Li, Wenfang Xu, C James Chou, Yingjie Zhang
Herein a novel series of pazopanib hybrids as polypharmacological antitumor agents were developed based on the crosstalk between histone deacetylases (HDACs) and vascular endothelial growth factor (VEGF) pathway. Among them, one ortho-aminoanilide 6d and one hydroxamic acid 13f exhibited considerable total HDACs and VEGFR-2 inhibitory activities. The HDAC inhibitory activities endowed 6d and 13f with potent antiproliferative activities, which was not observed in the approved VEGFR inhibitor pazopanib. Compounds 6d and 13f possessed comparable HDAC isoform selectivity profiles to the clinical class I HDAC inhibitor MS-275 and the approved pan-HDAC inhibitor SAHA, respectively...
June 28, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29687205/the-impact-of-hormonal-contraceptives-on-breast-cancer-pathology
#11
Jesse A Dorchak, Sifat Maria, Joseph L Guarinoni, Anette Duensing, Stella Somiari, Jane Cavanaugh, Brenda Deyarmin, Hai Hu, Joji Iida, Craig D Shriver, Paula A Witt-Enderby
This retrospective case series study, using data obtained through questionnaires and histopathological diagnoses from 656 patients enrolled in the Department of Defense (DoD) Clinical Breast Care Project (CBCP), evaluated associations between hormonal contraceptive use and breast cancer pathology including benign breast pathologies. Three combination hormonal contraceptive agents (COCs) Lo Ovral (LO), Ortho Novum (ON), and Ortho Tri-Cyclen (OTC) were evaluated as they represented the most commonly used hormonal contraceptives in our cohort...
August 2018: Hormones & Cancer
https://www.readbyqxmd.com/read/29683561/a-study-of-the-potential-interaction-between-bazedoxifene-and-atorvastatin-in-healthy-postmenopausal-women
#12
William McKeand, Susan Baird-Bellaire, James Ermer, Alain Patat
An open-label, 3-period study was conducted in 30 healthy postmenopausal women (mean age, 58.4 years) who received a single oral dose of atorvastatin 20 mg on day 1 (period 1), multiple daily dosing of bazedoxifene 40 mg on days 4-11 (period 2), and coadministration of atorvastatin 20 mg + bazedoxifene 40 mg on day 12 (period 3). Serial blood samples were collected (24 hours after bazedoxifene and 72 hours after atorvastatin) and assayed for bazedoxifene, atorvastatin, and its ortho-hydroxy and para-hydroxy metabolites...
April 23, 2018: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/29676831/correlations-between-histopathologic-and-dermoscopic-findings-in-korean-actinic-keratosis
#13
Dong Won Lee, Dae Yeon Kim, Ji Hyuck Hong, Soo Hong Seo, Young Chul Kye, Hyo Hyun Ahn
Skin biopsy for AK diagnosis is usually performed on only a limited part of the whole lesion. Therefore, a clinical diagnosis is important. According to a study, there is no significant correlation between histopathological and clinical classification system. We examined the correlation between microscopic information and dermoscopic findings to deduce if dermoscopic information reflects histopathologic grade severity. Forty seven patients with histologically confirmed AK were enrolled and positive ratio of red pseudonetwork, rosette, red background and targetoid signs, white-to-yellow scale, white structureless area, and pigmentation from dermoscopic findings were investigated...
April 20, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29675386/comparison-of-myopia-control-between-toric-and-spherical-periphery-design-orthokeratology-in-myopic-children-with-moderate-to-high-corneal-astigmatism
#14
Yu Zhang, Yue-Guo Chen
AIM: To compare clinical results between toric and spherical periphery design orthokeratology (ortho-k) in myopic children with moderate-to-high corneal astigmatism. METHODS: This retrospective study enrolled 62 eyes of 62 subjects using toric ortho-k lenses. These subjects were assigned to the toric group. Based on the one-to-one match principle (same age, proximate spherical equivalence and corneal astigmatism), 62 eyes of 62 subjects were enrolled and included in the spherical group...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29673128/synthesis-analytical-characterization-and-monoamine-transporter-activity-of-the-new-psychoactive-substance-4-methylphenmetrazine-4-mpm-with-differentiation-from-its-ortho-and-meta-positional-isomers
#15
Gavin McLaughlin, Michael H Baumann, Pierce V Kavanagh, Noreen Morris, John D Power, Geraldine Dowling, Brendan Twamley, John O'Brien, Gary Hessman, Folker Westphal, Donna Walther, Simon D Brandt
The availability of new psychoactive substances (NPS) on the recreational drug market continues to create challenges for scientists in the forensic, clinical and toxicology fields. Phenmetrazine (3-methyl-2-phenylmorpholine) and an array of its analogs form a class of psychostimulants that are well documented in the patent and scientific literature. The present study reports on two phenmetrazine analogs that have been encountered on the NPS market following the introduction of 3-fluorophenmetrazine (3-FPM), namely 4-methylphenmetrazine (4-MPM), and 3-methylphenmetrazine (3-MPM)...
April 19, 2018: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29614307/lc-ms-ms-reveals-the-formation-of-reactive-ortho-quinone-and-iminium-intermediates-in-saracatinib-metabolism-phase-i-metabolic-profiling
#16
Mohamed W Attwa, Adnan A Kadi, Hany W Darwish, Haitham Alrabiah
Saracatinib (AZD-0530) is a drug under clinical trials that developed by AstraZeneca. It is considered a dual kinase inhibitor, with selective actions as a Src inhibitor and a Bcr-Abl tyrosine-kinase inhibitor. Saracatinib chemical structure contains N-methyl piperazine group and 1,3 benzodioxole group. N-methyl piperazine group that can be bioactivated to form iminium intermediates which can be captured by KCN. 1,3-Benzodioxole group can be bioactivated to form ortho-quinone intermediate that can be conjugated with GSH...
July 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29604103/recalcitrant-psoriasiform-dermatosis-of-the-face-is-it-related-to-pityriasis-rubra-pilaris
#17
Emily Yiping Gan, See Ket Ng, Chee Leok Goh, Siong See Joyce Lee
BACKGROUND: There are patients with recalcitrant psoriasiform plaques that do not fit into conventional categories of facial dermatoses. Our study aims to describe the clinicopathological characteristics of several patients with a unique presentation of persistent psoriasiform facial rashes. METHODS: This retrospective cross-sectional study analyzed clinical and histological data of known cases of recalcitrant psoriasiform dermatosis of the face diagnosed at National Skin Centre, Singapore, over 10 years...
July 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29598897/feasibility-and-safety-of-treating-non-unions-in-tibia-femur-and-humerus-with-autologous-expanded-bone-marrow-derived-mesenchymal-stromal-cells-associated-with-biphasic-calcium-phosphate-biomaterials-in-a-multicentric-non-comparative-trial
#18
Enrique Gómez-Barrena, Philippe Rosset, Florian Gebhard, Philippe Hernigou, Nicola Baldini, Helène Rouard, Luc Sensebé, Rosa M Gonzalo-Daganzo, Rosaria Giordano, Norma Padilla-Eguiluz, Eduardo García-Rey, José Cordero-Ampuero, Juan Carlos Rubio-Suárez, Julien Stanovici, Christian Ehrnthaller, Markus Huber-Lang, Charles Henri Flouzat-Lachaniette, Nathalie Chevallier, Davide Maria Donati, Gabriela Ciapetti, Sandrine Fleury, Manuel-Nicolás Fernandez, José-Rafael Cabrera, Cristina Avendaño-Solá, Tiziana Montemurro, Carmen Panaitescu, Elena Veronesi, Markus Thomas Rojewski, Ramin Lotfi, Massimo Dominici, Hubert Schrezenmeier, Pierre Layrolle
BACKGROUND: ORTHO-1 is a European, multicentric, first in human clinical trial to prove safety and feasibility after surgical implantation of commercially available biphasic calcium phosphate bioceramic granules associated during surgery with autologous mesenchymal stromal cells expanded from bone marrow (BM-hMSC) under good manufacturing practices, in patients with long bone pseudarthrosis. METHODS: Twenty-eight patients with femur, tibia or humerus diaphyseal or metaphyso-diaphyseal non-unions were recruited and surgically treated in France, Germany, Italy and Spain with 100 or 200 million BM-hMSC/mL associated with 5-10 cc of bioceramic granules...
March 19, 2018: Biomaterials
https://www.readbyqxmd.com/read/29546390/comparison-of-the-efficacy-of-tooth-alignment-among-lingual-and-labial-brackets-an-in-vitro-study
#19
Ahmad Alobeid, Tarek El-Bialy, Susanne Reimann, Ludger Keilig, Dirk Cornelius, Andreas Jäger, Christoph Bourauel
Background/objective: The aim of this study was to evaluate the efficacy of tooth alignment with conventional and self-ligating labial and lingual orthodontic bracket systems. Materials/methods: We tested labial brackets (0.022″ slot size) and lingual brackets (0.018″ slot size). The labial brackets were: (i) regular twin brackets (GAC-Twin [Dentsply]), (ii) passive self-ligating brackets including (Damon-Q® [ORMCO]; Ortho classic H4™ [Orthoclassic]; FLI®SL [RMO]), and (iii) active self-ligating brackets (GAC In-Ovation®C [DENTSPLY] and SPEED™[Strite])...
March 13, 2018: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29487618/chemical-composition-and-porosity-characteristics-of-various-calcium-silicate-based-endodontic-cements
#20
Seok Woo Chang
Chemical composition and porosity characteristics of calcium silicate-based endodontic cements are important determinants of their clinical performance. Therefore, the aim of this study was to investigate the chemical composition and porosity characteristics of various calcium silicate-based endodontic cements: MTA-angelus, Bioaggregate, Biodentine, Micromega MTA, Ortho MTA, and ProRoot MTA. The specific surface area, pore volume, and pore diameter were measured by the porosimetry analysis of N2 adsorption/desorption isotherms...
2018: Bioinorganic Chemistry and Applications
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