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https://www.readbyqxmd.com/read/28350959/mapping-of-drug-like-chemical-universe-with-reduced-complexity-molecular-frameworks
#1
Aleksejs Kontijevskis
The emergence of DNA-encoded chemical libraries (DEL) field in past decade has attracted attention of pharmaceutical industry as a powerful mechanism for the discovery of novel drug-like hits for various biological targets. Nuevolution Chemetics technology enables DNA encoded synthesis of billions of chemically diverse drug-like small molecule compounds, and the efficient screening and optimization of these, facilitating effective identification of drug candidates at an unprecedented speed and scale. Although many approaches have been developed by the cheminformatics community for the analysis and visualization of drug-like chemical space, most of them are restricted to the analysis of maximum few millions of compounds and cannot handle collections of 10(8)-10(12) compounds typical for DELs...
March 28, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28346910/occurrence-temporal-variation-and-estrogenic-burden-of-five-parabens-in-sewage-sludge-collected-across-the-united-states
#2
Jing Chen, Benny F G Pycke, Bruce J Brownawell, Chad A Kinney, Edward T Furlong, Dana W Kolpin, Rolf U Halden
Five parabens used as preservatives in pharmaceuticals and personal care products (PPCPs) were measured in sewage sludges collected at 14 U.S. wastewater treatment plants (WWTPs) located in nine states. Detected concentration ranges (ng/g, dry weight) and frequencies were as follows: methyl paraben (15.9 to 203.0; 100%), propyl paraben (0.5 to 7.7; 100%), ethyl paraben (<0.6 to 2.6; 63%), butyl paraben (<0.4 to 4.3; 42%) and benzyl paraben (<0.4 to 3.3; 26%). The estrogenicity inherent to the sum of parabens detected in sewage sludge (ranging from 10...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346764/mapping-the-interactions-of-selective-biochemical-probes-of-antibody-conformation-by-hydrogen-deuterium-exchange-mass-spectrometry
#3
Ulrike Leurs, Hermann Beck, Lea Bonnington, Ingo Lindner, Ewa Pol, Kasper Dyrberg Rand
Protein-based pharmaceuticals represent the fastest growing group of drugs in development in the pharmaceutical industry. One of the major challenges in the discovery, development and distribution of biopharmaceuticals is the assessment of changes in their higher-order structure due to chemical modifications. Here, we investigate the interactions of three different biochemical probes (Fabs) generated to detect conformational changes in a therapeutic IgG1 antibody (mAbX) by local hydrogen-deuterium exchange mass spectrometry (HDX-MS)...
March 27, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28346336/enzymatic-processes-in-marine-biotechnology
#4
REVIEW
Antonio Trincone
In previous review articles the attention of the biocatalytically oriented scientific community towards the marine environment as a source of biocatalysts focused on the habitat-related properties of marine enzymes. Updates have already appeared in the literature, including marine examples of oxidoreductases, hydrolases, transferases, isomerases, ligases, and lyases ready for food and pharmaceutical applications. Here a new approach for searching the literature and presenting a more refined analysis is adopted with respect to previous surveys, centering the attention on the enzymatic process rather than on a single novel activity...
March 25, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28346214/suspensions-as-a-valuable-alternative-to-extemporaneously-compounded-capsules
#5
Eli Dijkers, Valerie Nanhekhan, Astrid Thorissen, Hudson Polonini
The objective of this study was to determine the variation in content of 74 different active pharmaceutical ingredients (APIs) and compare it with what is known in the literature for the content uniformity of extemporaneous prepared capsules. Active pharmaceutical ingredients quantification was performed by high-performance liquid chromatography, via a stability-indicating method. Samples for all active pharmaceutical ingredients were taken throughout a 90-day period and the content was determined. In total, 5,190 different samples were analyzed for 74 different active pharmaceutical ingredients at room (15°C to 25°C) or controlled refrigerated temperature (2°C to 8°C)...
March 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346208/basics-of-compounding-3d-printing-pharmacy-applications-part-1
#6
Loyd V Allen
Three-dimensional printing quickly became a standard tool in the automotive, aerospace, and consumer goods industries and, recently, has begun gaining traction in pharmaceutical manufacturing. 3D printing has steadily grown, introducing a new element into dosage form development, and has received a boost with U.S. Food and Drug Administration (FDA) approval of the 3D-printed orodispersible tablet, Spritam (levetiracetam). This part 1 of a 3-part article introduces 3D printing and its application to pharmacy...
March 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346203/u-s-food-and-drug-administration-inspections-guide-to-a-successful-outcome-for-503a-sterile-compounding-pharmacies
#7
Doug Yoch
The reasons for which pharmaceutical compounding is the focus of intense state and federal scrutiny are now well known. Compounders are faced with an ever-increasing need to prove, by objective standards, the safety, purity, and potency of the formulations they dispense. They must also demonstrate their compliance with regulations often based on current good compounding practices designed for the pharmaceutical industry. In the U.S. today, rigorous unannounced state and federal inspections of compounding facilities are occurring more and more frequently...
March 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346197/basics-of-compounding-with-dilutions-and-concentrates
#8
Loyd V Allen
Pharmacists use various sources for obtaining the active pharmaceutical ingredient for compounding medications. In many cases, it is the pure drug (United States Pharmacopeia, National Formulary, or similar grade); in some cases, it can be a commercial dosage form; and, in some cases, it may be a dilution or concentrate. If the drug is not present at full strength, then adjustments may be necessary to obtain the required quantity of drug. Also, in many cases, it is necessary to use a dilution or a concentrate of a drug due to safety and quality reasons...
January 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346196/analytic-methods-used-in-quality-control-in-a-compounding-pharmacy
#9
Loyd V Allen
Analytical testing will no doubt become a more important part of pharmaceutical compounding as the public and regulatory agencies demand increasing documentation of the quality of compounded preparations. Compounding pharmacists must decide what types of testing and what amount of testing to include in their quality-control programs, and whether testing should be done in-house or outsourced. Like pharmaceutical compounding, analytical testing should be performed only by those who are appropriately trained and qualified...
January 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346194/case-report-diabetic-foot-ulcer-infection-treated-with-topical-compounded-medications
#10
Kelechi E Agbi, Maria Carvalho, Ha Phan, Cristiane Tuma
An adult diabetic male with three toes amputated on his right foot presented with an ulcer infection on his left foot, unresponsive to conventional antifungal oral medication for over two months. The ulcerated foot wound had a large impairment on the patient's quality of life, as determined by the Wound-QoL questionnaire. The compounding pharmacist recommended and the physician prescribed two topical compounded medicines, which were applied twice a day, free of charge at the compounding pharmacy. The foot ulcer infection was completely resolved following 13 days of treatment, with no longer any impairment on the patient's quality of life...
January 2017: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28346087/pubchem-bioassay
#11
Yanli Wang, Tiejun Cheng, Stephen H Bryant
High-throughput screening (HTS) is now routinely conducted for drug discovery by both pharmaceutical companies and screening centers at academic institutions and universities. Rapid advance in assay development, robot automation, and computer technology has led to the generation of terabytes of data in screening laboratories. Despite the technology development toward HTS productivity, fewer efforts were devoted to HTS data integration and sharing. As a result, the huge amount of HTS data was rarely made available to the public...
January 1, 2017: SLAS Discov
https://www.readbyqxmd.com/read/28346048/mabdelivery-administration-routes-for-antibody-therapy-third-labex-mabimprove-industrial-workshop-july-2-2015-tours-france
#12
Elsa Bodier-Montagutelli, Renaud Respaud, Hervé Watier, Audrey Guillon-Munos
The annual "LabEx MAbImprove Industrial Workshops" are primarily intended to provide a comprehensive view about topics of interest for the pharmaceutical industry to scientists involved in research on therapeutic antibodies. The third workshop in this series, held July 2, 2015 in Tours, was dedicated to the optimization of delivery, namely all processes leading monoclonal antibodies to reach their target site. The commonly used intravenous (IV) route, although advantageous in terms of pharmacokinetics and pharmacodynamics, presents some disadvantages in terms of patients' convenience, therapeutic target access or treatment cost...
February 28, 2017: MAbs
https://www.readbyqxmd.com/read/28346002/quality-assessment-of-fluconazole-capsules-and-oral-suspensions-compounded-by-pharmacies-located-in-the-united-states
#13
Carine M Laporte, Crisanta Cruz-Espindola, Kamoltip Thungrat, Anthea E Schick, Thomas P Lewis, Dawn M Boothe
OBJECTIVE To evaluate pharmaceutical characteristics (strength or concentration, accuracy, and precision), physical properties, and bacterial contamination of fluconazole compounded products. SAMPLE Fluconazole compounded products (30- and 240-mg capsules; 30- and 100-mg/mL oral suspensions) from 4 US veterinary compounding pharmacies. PROCEDURES Fluconazole compounded products were ordered 3 times from each of 4 pharmacies at 7- or 10-day intervals. Generic fluconazole products (50- and 200-mg tablets; 10- and 40-mg/mL oral suspensions) served as references...
April 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28345498/the-effects-of-payments-for-pharmaceuticals-a-systematic-literature-review
#14
Katarzyna Kolasa, Marta Kowalczyk
The existence of different forms of out-of-pocket payments (OOPs) for pharmaceuticals across the globe provokes the question whether they can achieve more negative or positive consequences. A systematic literature review was conducted to assess the association between drug cost sharing and health care services utilization, health care costs as well as health outcomes. Studies published in The Cochrane Library, PubMed, Embase were searched with such keywords as: drug, pharmaceutical, cost sharing, out of pocket, co-payments paired with the following: impact, health outcomes, health care costs and utilization...
March 27, 2017: Health Economics, Policy, and Law
https://www.readbyqxmd.com/read/28345441/prevalence-and-cost-of-subsequent-fractures-among-u-s-patients-with-an-incident-fracture
#15
Jessica Weaver, Shiva Sajjan, E Michael Lewiecki, Steven T Harris, Panagiotis Marvos
BACKGROUND: The prevalence and cost of subsequent fractures among patients with an incident fracture are not well defined. OBJECTIVE: To assess the prevalence of, and costs associated with, subsequent fractures in the year after an incident fracture. METHODS: This was a retrospective claims database analysis using data from Humana Medicare Advantage claims (Medicare group) and Optum Insight Clinformatics Data Mart commercial claims (commercial group)...
April 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28345368/sponsors-and-investigative-staffs-perceptions-of-the-current-investigational-new-drug-safety-reporting-process-in-oncology-trials
#16
Raymond Perez, Patrick Archdeacon, Nancy Roach, Robert Goodwin, Jonathan Jarow, Nina Stuccio, Annemarie Forrest
BACKGROUND/AIMS: The Food and Drug Administration's final rule on investigational new drug application safety reporting, effective from 28 March 2011, clarified the reporting requirements for serious and unexpected suspected adverse reactions occurring in clinical trials. The Clinical Trials Transformation Initiative released recommendations in 2013 to assist implementation of the final rule; however, anecdotal reports and data from a Food and Drug Administration audit indicated that a majority of reports being submitted were still uninformative and did not result in actionable changes...
March 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28345166/demonstrating-therapeutic-equivalence-of-a-new-and-established-pharmaceutical-or-intervention-a-guide-for-the-non-statistician
#17
Richard B Weiskopf, Richard J Cook
No abstract text is available yet for this article.
March 27, 2017: Transfusion
https://www.readbyqxmd.com/read/28345159/stereoselective-catalytic-synthesis-of-active-pharmaceutical-ingredients-in-homemade-3d-printed-mesoreactors
#18
Sergio Rossi, Riccardo Porta, Davide Brenna, Alessandra Puglisi, Maurizio Benaglia
3D-printed flow reactors were designed, fabricated from different materials (PLA, HIPS, nylon), and used for a catalytic stereoselective Henry reaction. The use of readily prepared and tunable 3D-printed reactors enabled the rapid screening of devices with different sizes, shapes, and channel dimensions, aimed at the identification of the best-performing reactor setup. The optimized process afforded the products in high yields, moderate diastereoselectivity, and up to 90 % ee. The method was applied to the continuous-flow synthesis of biologically active chiral 1,2-amino alcohols (norephedrine, metaraminol, and methoxamine) through a two-step sequence combining the nitroaldol reaction with a hydrogenation...
March 27, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28345148/fast-self-healing-of-polyelectrolyte-multilayer-nanocoating-and-restoration-of-super-oxygen-barrier
#19
Yixuan Song, Kevin P Meyers, Joseph Gerringer, Ramesh K Ramakrishnan, Mohammad Humood, Shuang Qin, Andreas A Polycarpou, Sergei Nazarenko, Jaime C Grunlan
A self-healable gas barrier nanocoating, which is fabricated by alternate deposition of polyethyleneimine (PEI) and polyacrylic acid (PAA) polyelectrolytes, is demonstrated in this study. This multilayer film, with high elastic modulus, high glass transition temperature, and small free volume, has been shown to be a super oxygen gas barrier. An 8-bilayer PEI/PAA multilayer assembly (≈700 nm thick) exhibits an oxygen transmission rate (OTR) undetectable to commercial instrumentation (<0.005 cc (m(-2) d(-1) atm(-1) ))...
March 27, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28345122/effect-of-laser-on-pain-relief-and-wound-healing-of-recurrent-aphthous-stomatitis-a-systematic-review
#20
REVIEW
Valerie G A Suter, Sophia Sjölund, Michael M Bornstein
The aim of this systematic review was to assess a potential benefit of laser use in the treatment of recurrent aphthous stomatitis (RAS). The primary outcome variables were pain relief, duration of wound healing and reduction in episode frequency. A PICO approach was used as a search strategy in Medline, Embase and Cochrane databases. After scanning and excluding titles, abstracts and full texts, 11 studies (ten RCTs and one non-randomised controlled trial) were included. Study selection and data extraction was done by two observers...
March 27, 2017: Lasers in Medical Science
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