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https://www.readbyqxmd.com/read/28214914/the-impact-of-bitter-taste-receptor-genetics-on-culturable-bacteria-in-chronic-rhinosinusitis
#1
D I Rom, J M Christensen, R Alvarado, R Sacks, R J Harvey
BACKGROUND: Extra-oral bitter taste receptors have been associated with innate bacterial defence mechanisms. Genetic variation in T2R38 functionality has been shown to be associated with susceptibility to upper respiratory tract infections and chronic rhinosinusitis (CRS). We sought to independently assess the influence of bitter taste receptor genotype on the presence of culturable bacteria in the sinuses. METHODOLOGY: A cross-sectional analysis of patients with CRS undergoing surgery was performed...
February 19, 2017: Rhinology
https://www.readbyqxmd.com/read/28214257/a-comparison-of-two-dosing-regimens-of-asa-following-total-hip-and-knee-arthroplasties
#2
Michael J Feldstein, Sara L Low, Antonia F Chen, Laura A Woodward, William J Hozack
BACKGROUND: The purpose of this study was to compare short-term side effects of aspirin (ASA) 325 mg vs ASA 81 mg orally twice daily (PO BID) when used as thromboembolic prophylaxis following primary total joint arthroplasty. METHODS: A 1-year prospective cohort study was performed on 643 primary unilateral total joint arthroplasty patients operated on by a single surgeon. Two hundred eighty-two patients were administered ASA 325 mg PO BID and 361 patients were administered ASA 81 mg PO BID for 1 month...
January 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28213871/thieno-2-3-b-pyridine-derivatives-a-new-class-of-antiviral-drugs-against-mayaro-virus
#3
Raquel Amorim, Marcelo Damião Ferreira de Meneses, Julio Cesar Borges, Luiz Carlos da Silva Pinheiro, Lucio Ayres Caldas, Claudio Cesar Cirne-Santos, Marcos Vinícius Palmeira de Mello, Alessandra Mendonça Teles de Souza, Helena Carla Castro, Izabel Christina Nunes de Palmer Paixão, Renata de Mendonça Campos, Ingrid E Bergmann, Viviana Malirat, Alice Maria Rolim Bernardino, Moacyr Alcoforado Rebello, Davis Fernandes Ferreira
Mayaro virus (MAYV) is an arthropod-borne virus and a member of the family Togaviridae, genus Alphavirus. Its infection leads to an acute illness accompanied by long-lasting arthralgia. To date, there are no antiviral drugs or vaccines against infection with MAYV and resources for the prevention or treatment of other alphaviruses are very limited. MAYV has served as a model to study the antiviral potential of several substances on alphavirus replication. In this work we evaluated the antiviral effect of seven new derivatives of thieno[2,3-b]pyridine against MAYV replication in a mammalian cell line...
February 17, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28212615/molecular-pathways-underlying-inhibitory-effect-of-antimicrobial-peptide-nal-p-113-on-bacteria-biofilms-formation-of-porphyromonas-gingivalis-w83-by-dna-microarray
#4
Hong-Yan Wang, Li Lin, Li-Si Tan, Hui-Yuan Yu, Jya-Wei Cheng, Ya-Ping Pan
BACKGROUND: Wound-related infection remains a major challenge for health professionals. One disadvantage in conventional antibiotics is their inability to penetrate biofilms, the main protective strategy for bacteria to evade irradiation. Previously, we have shown that synthetic antimicrobial peptides could inhibit bacterial biofilms formation. RESULTS: In this study, we first delineated how Nal-P-113, a novel antimicrobial peptide, exerted its inhibitory effects on Porphyromonas gingivalis W83 biofilms formation at a low concentration...
February 17, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28212153/new-therapies-for-the-prevention-and-treatment-of-exacerbations-of-bronchiectasis
#5
Hani Abo-Leyah, James D Chalmers
PURPOSE OF REVIEW: Exacerbations of bronchiectasis have a major impact on quality of life, healthcare costs, and long-term risk of complications. Preventing exacerbations is one of the major goals of treatment. Bronchiectasis is increasingly recognized and the impact of bronchiectasis exacerbations on daily clinical practice is also increasing. RECENT FINDINGS: Preventing bronchiectasis exacerbations are dependent on appropriate risk assessment, identifying the patients at highest risk to rationally target preventive therapies...
February 16, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28211535/arylmethylamino-steroids-as-antiparasitic-agents
#6
Reimar Krieg, Esther Jortzik, Alice-Anne Goetz, Stéphanie Blandin, Sergio Wittlin, Mourad Elhabiri, Mahsa Rahbari, Selbi Nuryyeva, Kerstin Voigt, Hans-Martin Dahse, Axel Brakhage, Svenja Beckmann, Thomas Quack, Christoph G Grevelding, Anthony B Pinkerton, Bruno Schönecker, Jeremy Burrows, Elisabeth Davioud-Charvet, Stefan Rahlfs, Katja Becker
In search of antiparasitic agents, we here identify arylmethylamino steroids as potent compounds and characterize more than 60 derivatives. The lead compound 1o is fast acting and highly active against intraerythrocytic stages of chloroquine-sensitive and resistant Plasmodium falciparum parasites (IC50 1-5 nM) as well as against gametocytes. In P. berghei-infected mice, oral administration of 1o drastically reduces parasitaemia and cures the animals. Furthermore, 1o efficiently blocks parasite transmission from mice to mosquitoes...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28210839/thrombotic-microangiopathy-caused-by-methionine-synthase-deficiency-diagnosis-and-treatment-pitfalls
#7
Maria Helena Vaisbich, Andressa Braga, Maria Gabrielle, Clarissa Bueno, Flávia Piazzon, Fernando Kok
BACKGROUND: Inborn errors of cobalamin (Cbl) metabolism form a large group of rare diseases. One of these, Cbl deficiency type C (CblC), is a well-known cause of thrombotic microangiopathy (TMA), especially in infants. However, there has only been a single published case of TMA associated to Cbl deficiency type G (CblG), also known as methionine synthase deficiency (MSD). CASE DIAGNOSIS/TREATMENT: A 21-month-old boy presented with pallor and oral ulcers during episodes of upper respiratory infection (URI)...
February 16, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28206885/guideline-on-oral-and-dental-aspects-of-child-abuse-and-neglect
#8
(no author information available yet)
In all 50 states, physicians and dentists are required to report suspected cases of abuse and neglect to social service or law enforcement agencies. The purpose of this report is to review the oral and dental aspects of physical and sexual abuse and dental neglect and the role of physicians and dentists in evaluating such conditions. This report addresses the evaluation of bite marks as well as perioral and intraoral injuries, infections, and diseases that may be suspicious for child abuse or neglect. Physicians receive minimal training in oral health and dental injury and disease and, thus, may not detect dental aspects of abuse or neglect as readily as they do child abuse and neglect involving other areas of the body...
October 15, 2016: Pediatric Dentistry
https://www.readbyqxmd.com/read/28206868/mosquito-vector-biology-and-control-in-latin-america-a-26th-symposium
#9
Lee W Cohnstaedt, Catalina Alfonso-Para, Ildefonso Fernandez-Salas
The 26th Annual Latin American Symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 82nd Annual Meeting of the AMCA in Savannah, GA, in February 2016. The principal objective, as for the previous 25 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 19 presentations that were given orally in Spanish by participants from Colombia, Ecuador, Mexico, and the USA...
December 2016: Journal of the American Mosquito Control Association
https://www.readbyqxmd.com/read/28205238/comparative-pharmacokinetics-of-enrofloxacin-in-healthy-and-aeromonas-hydrophila-infected-crucian-carp-carassius-auratus-gibelio
#10
J Fan, Q Shan, J Wang, S Liu, L Li, G Zheng
The comparative pharmacokinetics of enrofloxacin (ENR) and its metabolite ciprofloxacin (CIP) were investigated in healthy and Aeromonas hydrophila-infected crucian carp after a single oral (p.o.) administration at a dose of 10 mg/kg at 25 °C. The plasma concentrations of ENR and of CIP were determined by HPLC. Pharmacokinetic parameters were calculated based on mean ENR concentrations by noncompartmental modeling. In healthy fish, the elimination half-life (T1/2λz ), maximum plasma concentration (Cmax ), time to peak (Tmax ), and area under the concentration-time curve (AUC) values were 64...
February 15, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28205148/ocular-autoimmune-systemic-inflammatory-infectious-study-oasis-report-4-analysis-and-outcome-of-scleritis-in-an-east-asian-population
#11
Muhammad Amir Bin Ismail, Rachel Hui Fen Lim, Helen Mi Fang, Elizabeth Poh Ying Wong, Ho Su Ling, Wee Kiak Lim, Stephen C Teoh, Rupesh Agrawal
BACKGROUND: The purpose of this study is to evaluate the spectrum of scleritis from database of Ocular Autoimmune Systemic Inflammatory Infectious Study (OASIS) at a tertiary eye referral eye institute in Singapore. Clinical records of 120 patients with scleritis from a database of 2200 patients from Ocular Autoimmune Systemic Inflammatory Infectious Study (OASIS) were reviewed. RESULTS: 56.6% were females, with a mean age of 48.6 ± 15.9 years. 75 (62.5%) had diffuse anterior scleritis, 25 (20...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28205025/the-multistate-tuberculosis-pharmacometric-model-a-semi-mechanistic-pharmacokinetic-pharmacodynamic-model-for-studying-drug-effects-in-an-acute-tuberculosis-mouse-model
#12
Chunli Chen, Fatima Ortega, Joaquin Rullas, Laura Alameda, Iñigo Angulo-Barturen, Santiago Ferrer, Ulrika Sh Simonsson
The Multistate Tuberculosis Pharmacometric (MTP) model, a pharmacokinetic-pharmacodynamic disease model, has been used to describe the effects of rifampicin on Mycobacterium tuberculosis (M. tuberculosis) in vitro. The aim of this work was to investigate if the MTP model could be used to describe the rifampicin treatment response in an acute tuberculosis mouse model. Sixty C57BL/6 mice were intratracheally infected with M. tuberculosis H37Rv strain on Day 0. Fifteen mice received no treatment and were sacrificed on Days 1, 9 and 18 (5 each day)...
February 15, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28202416/microarray-analysis-of-macrophage-response-to-infection-with-streptococcus-oralis-reveals-the-immunosuppressive-effect-of-hydrogen-peroxide
#13
Hitomi Matsushima, Yutaro Kumagai, Alexis Vandenbon, Hideo Kataoka, Miki Kadena, Haruka Fukamachi, Takafumi Arimoto, Hirobumi Morisaki, Nagatoshi Fujiwara, Nobuo Okahashi, Hirotaka Kuwata
Oral streptococci including mitis group streptococci are commensal residents and are also the first to colonize the oral cavity. However, various species of these oral streptococci have the potential to invade the host and occasionally lead to severe infectious disease such as cardiovascular diseases. Oral streptococci have close interactions with the host immune system including macrophages at the oral mucosal surface. One notable common trait of oral streptococcus including Streptococcus oralis (S. oralis) is the production of hydrogen peroxide (H2O2)...
February 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28199814/baricitinib-versus-placebo-or-adalimumab-in-rheumatoid-arthritis
#14
Peter C Taylor, Edward C Keystone, Désirée van der Heijde, Michael E Weinblatt, Liliana Del Carmen Morales, Jaime Reyes Gonzaga, Sergey Yakushin, Taeko Ishii, Kahaku Emoto, Scott Beattie, Vipin Arora, Carol Gaich, Terence Rooney, Douglas Schlichting, William L Macias, Stephanie de Bono, Yoshiya Tanaka
Background Baricitinib is an oral, reversible inhibitor of the Janus kinases JAK1 and JAK2 that may have therapeutic value in patients with rheumatoid arthritis. Methods We conducted a 52-week, phase 3, double-blind, placebo- and active-controlled trial in which 1307 patients with active rheumatoid arthritis who were receiving background therapy with methotrexate were randomly assigned to one of three regimens in a 3:3:2 ratio: placebo (switched to baricitinib after 24 weeks), 4 mg of baricitinib once daily, or 40 mg of adalimumab (an anti-tumor necrosis factor α monoclonal antibody) every other week...
16, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28198978/high-prevalence-of-human-papillomavirus-hpv-in-oral-mucosal-lesions-of-patients-at-the-ambulatory-of-oral-diagnosis-of-the-federal-university-of-sergipe-northeastern-brazil
#15
Mariana Goveia Melo Ribeiro, Larissa Doddi Marcolino, Bruna Ribeiro de Andrade Ramos, Elaine Alves Miranda, Cleverson Luciano Trento, Sona Jain, Ricardo Queiroz Gurgel, Márcia Guimarães da Silva, Silvio Santana Dolabella
Objective: The aim of this study was to evaluate the frequency of HPV infection and its genotypes in patients with oral lesions at the Ambulatory of Oral Diagnosis of the Federal University of Sergipe, Brazil. Material and Methods: We conducted a molecular study with 21 patients (15 females) aged from two to 83 years with clinically detectable oral lesions. Samples were collected through exfoliation of lesions and HPV-DNA was identified using MY09/11 and GP5+/6+ primers...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28198745/the-effect-of-oral-medication-on-wound-healing
#16
Jeffrey M Levine
GENERAL PURPOSE: The purpose of this learning activity is to provide information about the effects of oral medications on wound healing. TARGET AUDIENCE: This continuing education activity is intended for physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care. LEARNING OBJECTIVES/OUTCOMES: After participating in this educational activity, the participant should be better able to:1. Identify oral medications that aid in wound healing...
March 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/28198632/engineering-oral-and-parenteral-amorphous-amphotericin-b-formulations-against-experimental-trypanosoma-cruzi-infections
#17
Miriam Rolón, Dolores R Serrano, Aikaterini Lalatsa, Esther de Pablo, Juan Jose Torrado, Maria Paloma Ballesteros, Anne Marie Healy, Celeste Vega, Cathia Coronel, Francisco Bolas-Fernández, Maria Auxiliadora Dea-Ayuela
Chagas disease (CD) is a parasitic zoonosis endemic in most mainland countries of Central and South America affecting nearly 10 million people, with 100 million people at high risk of contracting the disease. Treatment is only effective if received at the early stages of the disease. Only two drugs (benznidazole and nifurtimox) have so far been marketed and both share various limitations such as variable efficacy, many side effects and long duration of treatment, thus reducing compliance. The in vitro and in vivo efficacy of poly-aggregated amphotericin B (AmB), encapsulated poly-aggregated AmB in albumin microspheres (AmB-AME) and dimeric AmB - sodium deoxycholate micelles (AmB-NaDC) was evaluated...
February 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28197805/economic-analysis-and-budget-impact-of-tenofovir-and-entecavir-in-the-first-line-treatment-of-hepatitis-b-virus-in-italy
#18
M Ruggeri, M Basile, S Coretti, C Drago, A Cicchetti
BACKGROUND: Chronic hepatitis B is a common, progressive disease, particularly when viral replication is detected. Oral antivirals can suppress viral replication and prevent or delay the development of cirrhosis and liver-related complications. The treatments of chronic hepatitis B cannot totally cure the disease but can prevent its progression to hepatocellular carcinoma, decreasing the levels of both morbidity and mortality. To date, there are several therapies indicated by the international guidelines as first-line treatments for the management of hepatitis B; two of the most effective are those based on either tenofovir or entecavir...
February 14, 2017: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/28197322/discovery-of-novel-orally-bioavailable-%C3%AE-amino-acid-azaindole-inhibitors-of-influenza-pb2
#19
Luc J Farmer, Michael P Clark, Michael J Boyd, Emanuele Perola, Steven M Jones, Alice Tsai, Marc D Jacobs, Upul K Bandarage, Mark W Ledeboer, Tiansheng Wang, Hongbo Deng, Brian Ledford, Wenxin Gu, John P Duffy, Randy S Bethiel, Dean Shannon, Randal A Byrn, Joshua R Leeman, Rene Rijnbrand, Hamilton B Bennett, Colleen O'Brien, Christine Memmott, Kwame Nti-Addae, Youssef L Bennani, Paul S Charifson
In our efforts to develop novel small-molecule inhibitors for the treatment of influenza, we utilized molecular modeling and the X-ray crystal structure of the PB2 subunit of the influenza polymerase to optimize a series of acyclic β-amino acid inhibitors, highlighted by compound 4. Compound 4 showed good oral exposure in both rat and mouse. More importantly, it showed strong potency versus multiple influenza-A strains, including pandemic 2009 H1N1 and avian H5N1 strains and showed a strong efficacy profile in a mouse influenza model even when treatment was initiated 48 h after infection...
February 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28197304/ester-prodrugs-of-ihvr-19029-with-enhanced-oral-exposure-and-prevention-of-gastrointestinal-glucosidase-interaction
#20
Julia Ma, Shuo Wu, Xuexiang Zhang, Fang Guo, Katherine Yang, Jia Guo, Qing Su, Huagang Lu, Patrick Lam, Yuhuan Li, Zhengyin Yan, William Kinney, Ju-Tao Guo, Timothy M Block, Jinhong Chang, Yanming Du
IHVR-19029 (6) is a lead endoplasmic reticulum α-glucosidases I and II inhibitor, which efficiently protected mice from lethal Ebola and Marburg virus infections via injection route, but suffered from low bioavailability and off-target interactions with gut glucosidases when administered orally. In an effort to improve efficacious exposure levels and avoid side effects, we designed and synthesized ester prodrugs. Not only were the prodrugs stable in simulated gastric and intestinal fluids and were inactive against glucosidases but they also exhibited antiviral activities against dengue virus infection in a cell based assay...
February 9, 2017: ACS Medicinal Chemistry Letters
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