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https://www.readbyqxmd.com/read/28820471/metal-based-nanoparticles-for-the-treatment-of-infectious-diseases
#1
REVIEW
Blessing Atim Aderibigbe
Infectious diseases can be transmitted and they cause a significant burden on public health globally. They are the greatest world killers and it is estimated that they are responsible for the demise of over 17 million people annually. The impact of these diseases is greater in the developing countries. People with compromised immune systems and children are the most affected. Infectious diseases may be caused by bacteria, viruses, and protozoa. The treatment of infectious diseases is hampered by simultaneous resistance to multiple drugs, indicating that there is a serious and pressing need to develop new therapeutics that can overcome drug resistance...
August 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28820454/personal-hygiene-practices-among-urban-homeless-persons-in-boston-ma
#2
Jessica H Leibler, Daniel D Nguyen, Casey León, Jessie M Gaeta, Debora Perez
Persons experiencing homelessness in the United States experience significant barriers to self-care and personal hygiene, including limited access to clean showers, laundry and hand washing facilities. While the obstacles to personal hygiene associated with homelessness may increase risk of infectious disease, hygiene-related behaviors among people experiencing homelessness has received limited attention. We conducted a cross-sectional study of individuals experiencing homelessness in Boston, MA (n = 194) to identify hygiene-related self-care practices and risk factors for reduced hygiene in this population...
August 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28818572/ribavirin-inhibits-zika-virus-zikv-replication-in-vitro-and-suppresses-viremia-in-zikv-infected-stat1-deficient-mice
#3
Naganori Kamiyama, Ryusuke Soma, Shinya Hidano, Kei Watanabe, Hiroshi Umekita, Chiaki Fukuda, Kaori Noguchi, Yoshiko Gendo, Takashi Ozaki, Akira Sonoda, Nozomi Sachi, Lucky Ronald Runtuwene, Yumako Miura, Etsuro Matsubara, Shigeru Tajima, Tomohiko Takasaki, Yuki Eshita, Takashi Kobayashi
Zika fever, a mosquito-borne infectious disease caused by Zika virus (ZIKV), is an epidemic disease for which no effective therapy has been established. The recent outbreaks of ZIKV in Brazil and French Polynesia have been linked to a considerable increase in the incidence of fetal microcephaly and other diseases such as Guillain-Barre syndrome. Because there is currently no specific therapy or vaccine, the early exploitation of a method to prevent expansion of ZIKV is a high priority. To validate commonly used antiviral drugs, we evaluated the effect of ribavirin, a drug used to treat hepatitis C with interferon-β (IFN-β), on ZIKV replication...
August 14, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28816372/in-vitro-antitubercular-activity-of-3-deoxysappanchalcone-isolated-from-the-heartwood-of-caesalpinia-sappan-linn
#4
Hoonhee Seo, Sukyung Kim, Hafij Al Mahmud, Md Imtiazul Islam, Kung-Woo Nam, Byung-Eui Lee, Hanna Lee, Myoung-Lae Cho, Heung-Mook Shin, Ho-Yeon Song
Responsible for nearly 1.5 million deaths every year, the infectious disease tuberculosis remains one of the most serious challenges to global health. The emergence of multidrug-resistant tuberculosis and, more recently, extensively drug-resistant tuberculosis poses a significant threat in our effort to control this epidemic. New drugs are urgently needed to combat the growing threat of antimicrobial resistance. To achieve this goal, we screened approximately 500 species of medicinal plant methanol extracts and their solvent partitioned fractions for potential inhibitors of Mycobacterium tuberculosis growth...
August 17, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28814513/escape-of-tick-borne-flavivirus-from-2-c-methylated-nucleoside-antivirals-is-mediated-by-a-single-conservative-mutation-in-ns5-that-has-a-dramatic-effect-on-viral-fitness
#5
Ludek Eyer, Hirofumi Kondo, Darina Zouharova, Minato Hirano, James J Valdés, Memi Muto, Tomas Kastl, Shintaro Kobayashi, Jan Haviernik, Manabu Igarashi, Hiroaki Kariwa, Marketa Vaculovicova, Jiri Cerny, Rene Kizek, Andrea Kröger, Stefan Lienenklaus, Milan Dejmek, Radim Nencka, Martin Palus, Jiri Salat, Erik De Clercq, Kentaro Yoshii, Daniel Ruzek
Tick-borne encephalitis virus (TBEV) causes a severe and potentially fatal neuroinfection in humans. Despite its high medical relevance, no specific antiviral therapy is currently available. Here we demonstrate that treatment with a nucleoside analog, 7-deaza-2' -C-methyladenosine (7-deaza-2' -CMA), substantially improved disease outcome, increased survival, and reduced signs of neuroinfection and viral titers in the brains of mice infected with a lethal dose of TBEV. To investigate the mechanism of action of 7-deaza-2' -CMA, two drug-resistant TBEV clones were generated and characterized...
August 16, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28814239/homology-modeling-and-molecular-docking-studies-of-bacillomycin-and-iturin-synthetases-with-novel-ligands-for-the-production-of-therapeutic-lipopeptides
#6
Jujjavarapu Satya Eswari, Swasti Dhagat, Shubham Kaser
BACKGROUND: Lipopeptide synthetases play an important role in the production of lipopeptides. Lipopeptides are molecules made up of peptides and fatty acid moieties and have shown to have a broad range of antimicrobial activity. As infectious diseases have caused severe health problems mainly resulting from the development of antibiotic resistant strains of disease causing microorganisms there is a need of alternatives to antibiotics. The lipopeptide synthetase of the corresponding lipopeptides can be used as templates to design these as drugs using computational techniques...
August 15, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28814238/structural-insights-for-drugs-developed-for-phospholipase-d-enzymes
#7
Kimberly Stieglitz
BACKGROUND: In recent years human phospholipase D enzymes (PLD1 and PLD2 isozymes) have emerged as drug targets for various diseases such as cardiovascular disease, cancer, infectious diseases and neurodegenerative conditions such as Alzheimer's and Parkinson's disease. The interest in PLD as a drug target is due to the fact that PLD enzymes belong to a superfamily of phospholipases that are essential to intracellular and extracellular signaling. Many bioactive lipid signaling molecules are generated by these enzymes including phosphatidic and lysophosphatidic acid, arachidonic acid, and diacylglycerol (DAG)...
August 15, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28810132/short-communication-alteration-in-blood-parameters-by-enrofloxacin-in-juvenile-lesser-spotted-dogfish-scyliorhinus-canicula-linnaeus-1758-after-intramuscular-injection
#8
Annalisa Zaccaroni, Marcos Perez-Lopez, Irene de la Casa Resino, Gianfranco Medri, Fabrizio Ceneri, Simone Bertini, Oliviero Mordenti, Luana Cortinovis, Rubina Sirri, Luciana Mandrioli
Enrofloxacin (EF) is a veterinary drug for respiratory, gastrointestinal and urinary tract infections. Parenteral administration at doses higher than the manufacturer recommended dosage has induced cartilage lesions in juvenile mammals and poultry. In elasmobranchs EF is commonly used for the treatment of infectious diseases, however only one study has been performed previously to evaluate pharmacokinetics and the potential chondrotoxicity of a fluoroquinolone in adult skates. In present study juvenile lesser spotted dogfish (Scyliorhinus canicula, Linnaeus, 1758) were treated with low (LD, 5mg/kg) and high dose (HD, 10mg/kg) of EF daily via intramuscular injection for 15 consecutive days, as indicated in a recognized treatment...
August 10, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28809644/-endoprosthesis-infections-guidelines-for-antibiotic-therapy-common-guidelines-of-the-czech-society-for-orthopaedics-and-traumatology-and-the-society-for-infectious-diseases-of-the-czech-medical-association-of-j-e-purkyn%C3%A4
#9
D Musil, M Balejová, M Horníková, A Chrdle, N Mallátová, O Nyč, V Chmelík, J Gallo, D Jahoda, J Stehlík
PURPOSE OF THE STUDY This study aims to articulate regional guidelines for curative and suppressive antibiotic therapy of total joint replacement infections. MATERIAL AND METHODS When developing the standard, used as source materials were the published foreign guidelines for antibiotic therapy of prosthetic joint infections, the analysis of resistance of bacterial strains conducted in the Hospital in České Budějovice, a.s. and the assessment of strain resistance for the Czech Republic published by the European Antimicrobial Resistance Surveillance Network (EARS-Net)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28808688/adaptive-mistranslation-accelerates-the-evolution-of-fluconazole-resistance-and-induces-major-genomic-and-gene-expression-alterations-in-candida-albicans
#10
Tobias Weil, Rodrigo Santamaría, Wanseon Lee, Johan Rung, Noemi Tocci, Darren Abbey, Ana R Bezerra, Laura Carreto, Gabriela R Moura, Mónica Bayés, Ivo G Gut, Attila Csikasz-Nagy, Duccio Cavalieri, Judith Berman, Manuel A S Santos
Regulated erroneous protein translation (adaptive mistranslation) increases proteome diversity and produces advantageous phenotypic variability in the human pathogen Candida albicans. It also increases fitness in the presence of fluconazole, but the underlying molecular mechanism is not understood. To address this question, we evolved hypermistranslating and wild-type strains in the absence and presence of fluconazole and compared their fluconazole tolerance and resistance trajectories during evolution. The data show that mistranslation increases tolerance and accelerates the acquisition of resistance to fluconazole...
July 2017: MSphere
https://www.readbyqxmd.com/read/28808479/a-multiscale-model-for-the-world-s-first-parasitic-disease-targeted-for-eradication-guinea-worm-disease
#11
Rendani Netshikweta, Winston Garira
Guinea worm disease (GWD) is both a neglected tropical disease and an environmentally driven infectious disease. Environmentally driven infectious diseases remain one of the biggest health threats for human welfare in developing countries and the threat is increased by the looming danger of climate change. In this paper we present a multiscale model of GWD that integrates the within-host scale and the between-host scale. The model is used to concurrently examine the interactions between the three organisms that are implicated in natural cases of GWD transmission, the copepod vector, the human host, and the protozoan worm parasite (Dracunculus medinensis), and identify their epidemiological roles...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28807973/prevention-of-delayed-referrals-through-the-champlain-base-econsult-service
#12
Clare Liddy, Paul Drosinis, Adam Fogel, Erin Keely
OBJECTIVE: To identify the proportion and evaluate the content of eConsults (electronic consultations) in which the Champlain BASE (Building Access to Specialists through eConsultation) eConsult process prompted a referral to a specialist that was not originally contemplated by the primary care provider (PCP). DESIGN: Cross-sectional study of all eConsults submitted between April 15, 2011, and January 31, 2015. SETTING: Champlain Local Health Integration Network, a large health region in eastern Ontario...
August 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28805687/a-review-of-the-antiviral-role-of-green-tea-catechins
#13
REVIEW
Jun Xu, Zhao Xu, Wenming Zheng
Over the centuries, infectious diseases caused by viruses have seriously threatened human health globally. Viruses are responsible not only for acute infections but also many chronic infectious diseases. To prevent diseases caused by viruses, the discovery of effective antiviral drugs, in addition to vaccine development, is important. Green tea catechins (GTCs) are polyphenolic compounds from the leaves of Camelliasinensis. In recent decades, GTCs have been reported to provide various health benefits against numerous diseases...
August 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28804515/mmx-%C3%A2-technology-and-its-applications-in-gastrointestinal-diseases
#14
REVIEW
Silvia Nardelli, Laura Francesca Pisani, Gian Eugenio Tontini, Maurizio Vecchi, Luca Pastorelli
The Multimatrix(®) (MMX(®)) preparation MMX(®) is a recently obtained drug formulation developed to facilitate release of high concentrations of active drugs into the colon, with a homogeneous distribution along all colonic segments, particularly the most distal ones; the distal colonic tracts, indeed, are the most difficult to reach in significant amounts when a drug is given orally. The MMX(®) formulation is characterized by a lipophilic matrix dispersed in a hydrophilic structure. Indeed, in the last few years, MMX(®) technology has been widely used in the development of various drugs for the treatment of inflammatory and infectious gastrointestinal diseases localized in the colon...
July 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28803932/the-thiopurine-nucleoside-analogue-6-methylmercaptopurine-riboside-6mmpr-effectively-blocks-zika-virus-replication
#15
Otavio Valério de Carvalho, Daniele Mendes Félix, Leila Rodrigues de Mendonça, Catarina Maria Cataldi Sabino de Araújo, Rafael Freitas de Oliveira Franca, Marli Tenório Cordeiro, Abelardo Silva Júnior, Lindomar José Pena
Since the emergence of Zika virus (ZIKV) in Brazil in 2015, 48 countries and territories in the Americas have confirmed autochthonous cases of the disease caused by the virus. The ZIKV-associated neurological manifestations and congenital defects make the development of safe and effective antivirals against ZIKV of utmost importance. Here, we evaluated the antiviral activity of 6-methylmercaptopurine riboside (6MMPr), a thiopurine nucleoside analog derived from the prodrug azathioprine (AZA), against the epidemic ZIKV strain circulating in Brazil...
August 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28803931/explicit-definitions-of-potentially-inappropriate-prescriptions-of-antibiotics-in-older-patients-a-compilation-derived-from-a-systematic-review
#16
REVIEW
Nicolas Baclet, Grégoire Ficheur, Serge Alfandari, Laurie Ferret, Eric Senneville, Emmanuel Chazard, Jean-Baptiste Beuscart
CONTEXT: Potentially inappropriate prescriptions (PIPs) of antibiotics (antibiotic-PIPs) are generally detected by applying implicit definitions based on expert opinion. Explicit definitions are less frequently used, even though this approach would enable the automated detection of antibiotic-PIPs in electronic health records. Here, we systematically reviewed explicit definitions of antibiotic-PIPs used in studies of older adults. METHOD: We searched the MEDLINE(®), Scopus(®) and Web of Science(TM) core collection databases with a combination of three terms and their synonyms: "potentially inappropriate prescription" AND "antibiotic treatment" AND "older patients"...
August 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28799498/structure-based-approaches-targeting-parasite-cysteine-proteases
#17
Rafael Pinto Vieira, Viviane Corrêa Santos, Rafaela Salgado Ferreira
Cysteine proteases are essential hydrolytic enzymes present in the majority of organisms, including viruses and unicellular parasites. Despite the high sequence identity displayed among these proteins, specific structural features across different species grant distinct functions to these biomolecules, frequently related to pathological conditions. Consequently, their relevance as promising targets for potential specific inhibitors has been highlighted and occasionally validated in recent decades. In this review, we discuss the recent outcomes on structure-based campaigns aiming the discovery of new inhibitor prototypes against cruzain and falcipain, as alternative therapeutic tools for Chagas disease and malaria treatments, respectively...
August 10, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28797115/ranking-93-health-interventions-for-low-and-middle-income-countries-by-cost-effectiveness
#18
Susan Horton, Hellen Gelband, Dean Jamison, Carol Levin, Rachel Nugent, David Watkins
BACKGROUND: Cost-effectiveness rankings of health interventions are useful inputs for national healthcare planning and budgeting. Previous comprehensive rankings for low- and middle- income countries were undertaken in 2005 and 2006, accompanying the development of strategies for the Millennium Development Goals. We update the rankings using studies published since 2000, as strategies are being considered for the Sustainable Development Goals. METHODS: Expert systematic searches of the literature were undertaken for a broad range of health interventions...
2017: PloS One
https://www.readbyqxmd.com/read/28794182/membrane-filtration-is-suitable-to-reliably-eliminate-mycobacterium-tuberculosis-from-saliva-for-therapeutic-drug-monitoring
#19
Simone H J van den Elsen, Tridia van der Laan, Onno W Akkerman, Adri G M van der Zanden, Jan-Willem C Alffenaar, Dick van Soolingen
Tuberculosis (TB) remains an infectious disease of a worldwide concern.….
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28793068/incorporation-of-new-medicines-by-the-national-commission-for-incorporation-of-technologies-2012-to-june-2016
#20
Rosângela Caetano, Rondineli Mendes da Silva, Érica Militão Pedro, Ione Ayala Gualandi de Oliveira, Aline Navega Biz, Pamela Santana
The National Commission for incorporation of Health Technologies (CONITEC), established in 2011, advises the Ministry of Health in decisions related to the incorporation, exclusion or change of medicines, products and procedures in the Unified Health System (SUS).The study investigated the decision-making process, profile of demands and incorporation of new medicines in the SUS from January/2012 to June/2016, based on data available on the CONITEC website. All submissions were evaluated and characterized by technology and applicant type...
August 2017: Ciência & Saúde Coletiva
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