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https://www.readbyqxmd.com/read/28645201/benznidazole-treatment-safety-the-m%C3%A3-decins-sans-fronti%C3%A3-res-experience-in-a-large-cohort-of-bolivian-patients-with-chagas-disease
#1
Gilberto Marcelo Sperandio da Silva, Mauro Felippe Felix Mediano, Alejandro Marcel Hasslocher-Moreno, Marcelo Teixeira de Holanda, Andrea Silvestre de Sousa, Luiz Henrique Conde Sangenis, Pedro Emmanuel Alvarenga Americano do Brasil, Roger Arteaga Mejía, Carina Perotti Fux, Juan-Carlos Cubides, Roberto Magalhães Saraiva, Lucia Maria Brum-Soares
Background: Up to half of patients with Chagas' disease under benznidazole treatment present adverse drug reactions (ADRs) and up to one-third do not complete standard treatment. Objectives: To verify the incidence and possible factors associated with the suspension of benznidazole treatment in a large cohort of patients. Methods: We included 2075 patients treated with benznidazole during the projects managed by the medical humanitarian organization Doctors Without Borders (Médecins Sans Frontières) in Bolivia from 2009 to 2013...
June 22, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28643788/terahertz-saturable-absorbers-from-liquid-phase-exfoliation-of-graphite
#2
Vezio Bianchi, Tian Carey, Leonardo Viti, Lianhe Li, Edmund H Linfield, A Giles Davies, Alessandro Tredicucci, Duhee Yoon, Panagiotis G Karagiannidis, Lucia Lombardi, Flavia Tomarchio, Andrea C Ferrari, Felice Torrisi, Miriam S Vitiello
Saturable absorbers (SA) operating at terahertz (THz) frequencies can open new frontiers in the development of passively mode-locked THz micro-sources. Here we report the fabrication of THz SAs by transfer coating and inkjet printing single and few-layer graphene films prepared by liquid phase exfoliation of graphite. Open-aperture z-scan measurements with a 3.5 THz quantum cascade laser show a transparency modulation ∼80%, almost one order of magnitude larger than that reported to date at THz frequencies...
June 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28643174/natural-language-processing-for-ehr-based-pharmacovigilance-a-structured-review
#3
REVIEW
Yuan Luo, William K Thompson, Timothy M Herr, Zexian Zeng, Mark A Berendsen, Siddhartha R Jonnalagadda, Matthew B Carson, Justin Starren
The goal of pharmacovigilance is to detect, monitor, characterize and prevent adverse drug events (ADEs) with pharmaceutical products. This article is a comprehensive structured review of recent advances in applying natural language processing (NLP) to electronic health record (EHR) narratives for pharmacovigilance. We review methods of varying complexity and problem focus, summarize the current state-of-the-art in methodology advancement, discuss limitations and point out several promising future directions...
June 22, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28642728/theory-the-final-frontier-a-corpus-based-analysis-of-the-role-of-theory-in-psychological-articles
#4
Sieghard Beller, Andrea Bender
Contemporary psychology regards itself as an empirical science, at least in most of its subfields. Theory building and development are often considered critical to the sciences, but the extent to which psychology can be cast in this way is under debate. According to those advocating a strong role of theory, studies should be designed to test hypotheses derived from theories (theory-driven) and ideally should yield findings that stimulate hypothesis formation and theory building (theory-generating). The alternative position values empirical findings over theories as the lasting legacy of science...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28642709/new-frontiers-in-the-pathobiology-and-treatment-of-cancer-regimen-related-mucosal-injury
#5
REVIEW
Marika Cinausero, Giuseppe Aprile, Paola Ermacora, Debora Basile, Maria G Vitale, Valentina Fanotto, Giuseppe Parisi, Lorenzo Calvetti, Stephen T Sonis
Mucositis is a common complication of chemotherapy, radiotherapy and targeted agents. It often affects compliance to anticancer therapies as it frequently causes schedule delays, interruptions or discontinuations of treatment. Moreover, the economic impact related to the management of mucositis is topical and several estimations of additional hospital costs due to this clinical condition have been recently reported. The ability to determine risk factors for mucositis, to early detect its onset, to assess correctly the degree of this toxicity and to plan its multidisciplinary management are all key elements to guarantee the quality of life of patients and to avoid useless dose reduction or interruption of treatment...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28641511/microbial-lipase-mediated-by-health-beneficial-modification-of-cholesterol-and-flavors-in-food-products-a-review
#6
Ranjana Sharma, Nivedita Sharma
BACKGROUND: The tremendous need of lipase in varied applications in biotechnological increases its economical value in food and allied industries. Lipase has an impressive number of applications viz. enhancements of flavor in food products (Cheese, butter, alcoholic beverages, milk chocolate and diet control food stuffs), detergent industry in removing oil, grease stain, organic chemical processing, textile industry, oleochemical industry, cosmetic industry and also as therapeutic agents in pharmaceutical industries...
June 14, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28641222/theoretical-evaluation-on-selective-adsorption-characteristics-of-alkali-metal-based-sorbents-for-gaseous-oxidized-mercury
#7
Hongjian Tang, Yufeng Duan, Chun Zhu, Tianyi Cai, Chunfeng Li, Liang Cai
Alkali metal-based sorbents are potential for oxidized mercury (Hg(2+)) selective adsorption but show hardly effect to elemental mercury (Hg(0)) in flue gas. Density functional theory (DFT) was employed to investigate the Hg(0) and HgCl2 adsorption mechanism over alkali metal-based sorbents, including calcium oxide (CaO), magnesium oxide (MgO), potassium chloride (KCl) and sodium chloride (NaCl). Hg(0) was found to weakly interact with CaO (001), MgO (001), KCl (001) and NaCl (001) surfaces while HgCl2 was effectively adsorbed on top-O and top-Cl sites...
June 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28640306/tip-enhanced-raman-spectroscopy-from-early-developments-to-recent-advances
#8
REVIEW
Tanja Deckert-Gaudig, Atsushi Taguchi, Satoshi Kawata, Volker Deckert
An analytical technique operating at the nanoscale must be flexible regarding variable experimental conditions while ideally also being highly specific, extremely sensitive, and spatially confined. In this respect, tip-enhanced Raman scattering (TERS) has been demonstrated to be ideally suited to, e.g., elucidating chemical reaction mechanisms, determining the distribution of components and identifying and localizing specific molecular structures at the nanometre scale. TERS combines the specificity of Raman spectroscopy with the high spatial resolution of scanning probe microscopies by utilizing plasmonic nanostructures to confine the incident electromagnetic field and increase it by many orders of magnitude...
June 22, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28639413/fully-inorganic-trihalide-perovskite-nanocrystals-a-new-research-frontier-of-optoelectronic-materials
#9
REVIEW
Xianghong He, Yongcai Qiu, Shihe Yang
All-inorganic trihalide perovskite nanocrystals (NCs) are emerging as a new class of superstar semiconductors with excellent optoelectronic properties and great potential for a broad range of applications in lighting, lasing, photon detection, and photovoltaics. This article provides an up-to-date review on the developments of fully-inorganic trihalide perovskite NCs by emphasizing their controllable solution fabrication strategies, structural phase transformation, tunable optoelectronic properties, stability, as well as their photovoltaic and optoelectronic applications...
June 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28636960/mechanisms-and-therapeutic-relevance-of-neuro-immune-communication
#10
REVIEW
Sangeeta S Chavan, Valentin A Pavlov, Kevin J Tracey
Active research at the frontiers of immunology and neuroscience has identified multiple points of interaction and communication between the immune system and the nervous system. Immune cell activation stimulates neuronal circuits that regulate innate and adaptive immunity. Molecular mechanistic insights into the inflammatory reflex and other neuro-immune interactions have greatly advanced our understanding of immunity and identified new therapeutic possibilities in inflammatory and autoimmune diseases. Recent successful clinical trials using bioelectronic devices that modulate the inflammatory reflex to significantly ameliorate rheumatoid arthritis and inflammatory bowel disease provide a path for using electrons as a therapeutic modality for targeting molecular mechanisms of immunity...
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28636342/charge-transfer-properties-of-triarylamine-integrated-dimolybdenum-dyads
#11
Lu Chen, Suman Mallick, Ying Ning Tan, Miao Meng, Chun Y Liu
Three quadruply bonded dimolybdenum complexes equipped with a triarylamine pendant, [(DAniF)3Mo2(μ-O2CC6H4N(C6H4CH3)2] (DAniF = N,N'-di(p-anisyl)formamidinate; [OO-ph-N]), [(DAniF)3Mo2(μ-OSCC6H4N(C6H4CH3)2] ([OS-ph-N]), and [(DAniF)3Mo2(μ-S2CC6H4N(C6H4CH3)2] ([SS-ph-N]), have been synthesized and characterized by single crystal X-ray diffraction. In electrochemical measurements, the redox couple for the organic amine group becomes irreversible, reflecting the substantially strong electronic interaction between the dimetal center and organic redox site...
June 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28636311/insights-into-integrated-lead-generation-and-target-identification-in-malaria-and-tuberculosis-drug-discovery
#12
John Okombo, Kelly Chibale
New, safe and effective drugs are urgently needed to treat and control malaria and tuberculosis, which affect millions of people annually. However, financial return on investment in the poor settings where these diseases are mostly prevalent is very minimal to support market-driven drug discovery and development. Moreover, the imminent loss of therapeutic lifespan of existing therapies due to evolution and spread of drug resistance further compounds the urgency to identify novel effective drugs. However, the advent of new public-private partnerships focused on tropical diseases and the recent release of large data sets by pharmaceutical companies on antimalarial and antituberculosis compounds derived from phenotypic whole cell high throughput screening have spurred renewed interest and opened new frontiers in malaria and tuberculosis drug discovery...
June 21, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28632392/lewis-acid-promoted-hydrogenation-of-co2-and-hcoo-by-amine-boranes-mechanistic-insight-from-computational-approach
#13
Lisa Roy, Boyli Ghosh, Ankan Paul
We employ quantum chemical calculations to study the hydrogenation of carbon dioxide by amine-boranes, NMe3BH3 ((Me3)AB) and NH3BH3 (AB) weakly bonded to a bulkier Lewis acid, Al(C6F5)3 (LA). Additionally, computations has also been conducted to elucidate the mechanism of hydrogenation of carbon dioxide by (Me3)AB while captured between one Lewis Base (P(o-tol3), (LB)) and two Lewis acids, Al(C6F5)3. In agreement to the experiments, our computational study predicts that hydride transfer to conjugated HCO2(‒), generated in the reaction of (Me3)AB-LA with CO2, is not feasible...
June 20, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28631247/choice-of-reserve-capacity-by-hospitals-a-problem-for-prospective-payment
#14
Philippe K Widmer, Maria Trottmann, Peter Zweifel
This contribution analyzes the impact of prospective payment on hospital decisions with regard to reserve capacity, using Swiss hospital data covering the years 2004-2009. This data set is unique because it permits distinguishing of institutional characteristics (e.g., ownership status) from the mode of payment as determinants of hospital efficiency, due to the fact that some Swiss cantons introduced prospective payment early while others waited for federal legislation to be enacted in 2012. Since a hospital's choice of reserve capacity depends also on the risk preferences of management while affecting the cost function, heterogeneity is predicted even in the presence of identical technology and factor prices...
June 19, 2017: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/28628931/-the-probabilistic-efficiency-frontier-a-value-assessment-of-treatment-options-in-hepatitis-c
#15
Axel C Mühlbacher, Andrew Sadler
Background The German Institute for Quality and Efficiency in Health Care (IQWiG) recommends the concept of the efficiency frontier to assess health care interventions. The efficiency frontier supports regulatory decisions on reimbursement prices for the appropriate allocation of health care resources. Until today this cost-benefit assessment framework has only been applied on the basis of individual patient-relevant endpoints. This contradicts the reality of a multi-dimensional patient benefit. Objective The objective of this study was to illustrate the operationalization of multi-dimensional benefit considering the uncertainty in clinical effects and preference data in order to calculate the efficiency of different treatment options for hepatitis C (HCV)...
June 19, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28628463/operational-research-during-the-ebola-emergency
#16
Gabriel Fitzpatrick, Tom Decroo, Bertrand Draguez, Rosa Crestani, Axelle Ronsse, Rafael Van den Bergh, Michel Van Herp
Operational research aims to identify interventions, strategies, or tools that can enhance the quality, effectiveness, or coverage of programs where the research is taking place. Médecins Sans Frontières admitted ≈5,200 patients with confirmed Ebola virus disease during the Ebola outbreak in West Africa and from the beginning nested operational research within its emergency response. This research covered critical areas, such as understanding how the virus spreads, clinical trials, community perceptions, challenges within Ebola treatment centers, and negative effects on non-Ebola healthcare...
July 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28628264/controlling-lactation-oestrus-the-final-frontier-for-breeding-herd-management
#17
REVIEW
William H E J van Wettere, Alice C Weaver, Emma C Greenwood, Robyn Terry, Paul E Hughes, Karen L Kind
Lactation anoestrus limits the flexibility of modern pig production systems such that any increase in lactation length reduces farrowing frequency, and thus profit. This review focuses on post-partum development of the sow's reproductive system, the physiology of lactation anoestrus and how it can be overcome, as well as the fertility of sows mated while lactating. The propensity for sows to ovulate spontaneously while lactating is high (24-31%), and a high proportion of sows will ovulate rapidly and synchronously in response to combinations of altered suckling (split weaning, interrupted suckling), daily boar contact, exogenous gonadotrophins, and group housing...
June 19, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28628226/the-future-of-dream-science
#18
Kelly Bulkeley
This article describes the future prospects of scientific dream research. Three frontiers of investigation hold special promise: neuroscientific studies of the brain-mind system's activities during sleep (such as during lucid dreaming); systematic analyses of large collections of dream reports from diverse populations of people; and psychotherapeutic explorations of the multiple dimensions of personal and collective meaning woven into the dream experiences of each individual. Several helpful books on the science of sleep and dreaming are mentioned for further study...
June 19, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28627386/big-data-analysis-of-global-advances-in-pharmaceutics-and-drug-delivery-1980-2014
#19
REVIEW
Weixiang Zhang, Qianqian Zhao, Junling Deng, Yuanjia Hu, Yitao Wang, Defang Ouyang
The past three decades have witnessed an upsurge of publications in pharmaceutics and the drug delivery field. This review provides a landscape of global research advances in pharmaceutics in the period 1980-2014 from publications, countries and institutions, and their collaborations. The scientific knowledge mapping analysis showed that the research frontier shifted from conventional pharmaceutical techniques (1980-1992) to advanced drug delivery systems (1993-2014). The history of drug delivery for this period is summarized and future prospects of pharmaceutical research are discussed...
June 13, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28626973/role-of-parasite-transmission-in-promoting-inbreeding-ii-pedigree-reconstruction-reveals-sib-transmission-and-consequent-kin-mating
#20
Jillian T Detwiler, Charles D Criscione
Even though parasitic flatworms are one of the most species rich groups of hermaphroditic organisms, we know virtually nothing of their mating systems (selfing or kin-mating rates) in nature. Hence, we lack an understanding of the role of inbreeding in parasite evolution. The natural mating systems of parasitic flatworms have remained elusive due to the inherent difficulty in generating progeny-array data in many parasite systems. New developments in pedigree reconstruction allow direct inference of realized selfing rates in nature by simply using a sample of genotyped individuals...
June 19, 2017: Molecular Ecology
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