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https://www.readbyqxmd.com/read/28732306/photostability-testing-using-online-reactor-hplc-hyphenation-and-mass-spectrometric-compound-identification-illustrated-by-ketoprofen-as-model-compound
#1
Jaber Assaf, Diego Zulkiewicz Gomes, Bernhard Wuest, Maria Kristina Parr
Investigations on the photochemical stability of pharmaceutical substances are mandatory in drug development and licensing as photo-induced degradation of an active pharmaceutical ingredient (API) may not only lead to decreased API concentrations but also to toxic or reactive products. Thus, the US Food and Drug Administration (FDA) and the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) issued Guidance for Industry Q1B "Photostability Testing of New Drug Substances and Products" for testing of pure but also packed drugs...
July 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28731201/a-technological-and-regulatory-outlook-on-crispr-crop-editing
#2
Rea Globus, Udi Qimron
Generating plants with increased yields while maintaining low production and maintenance costs is highly important since plants are the major food source for humans and animals, as well as important producers of chemicals, pharmaceuticals, and fuels. Gene editing approaches, particularly the CRISPR-Cas system, are the preferred methods for improving crops, enabling quick, robust, and accurate gene manipulation. Nevertheless, new breeds of genetically-modified crops have initiated substantial debates concerning their biosafety, commercial use, and regulation...
July 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28721949/rising-to-the-challenge-applying-biofabrication-approaches-for-better-drug-and-chemical-product-development
#3
Anthony M Holmes, Alex Charlton, Brian Derby, Lorna Ewart, Andrew Scott, Wenmiao Shu
Many industrial sectors, from pharmaceuticals to consumer products, are required to provide data on their products to demonstrate their efficacy and that they are safe for patients, consumers and the environment. This period of testing typically requires the use of animal models, the validity of which has been called into question due to the high rates of attrition across many industries. There is increasing recognition of the limitations of animal models and demands for safety and efficacy testing paradigms which embrace the latest technological advances and knowledge of human biology...
July 19, 2017: Biofabrication
https://www.readbyqxmd.com/read/28719984/cytotoxic-and-immunomodulatory-potential-activity-of-physalis-peruviana-fruit-extracts-on-cervical-cancer-hela-and-fibroblast-l929-cells
#4
Helen Mier-Giraldo, Luis Eduardo Díaz-Barrera, Lucy Gabriela Delgado-Murcia, Manuel Fernando Valero-Valdivieso, Gabriela Cáez-Ramírez
It was purposed to evaluate the biological potential of ethanol and isopropanol crude extracts of ripe Physalis peruviana fruits. Cytotoxic and immunomodulatory effects of the expression of interleukin-6, interleukin-8, and monocyte chemoattractant protein-1 (MCP-1) were evaluated on human cervical cancer (HeLa) and murine fibroblast (L929) cells. The composition was evaluated by high-performance liquid chromatography diode-array detection and high-performance liquid chromatography ultraviolet/visible detection...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
https://www.readbyqxmd.com/read/28719728/robust-acenaphthoimidazolylidene-palladacycles-highly-efficient-catalysts-for-the-amination-of-n-heteroaryl-chlorides
#5
Tao Tu, Qinyue Deng, Yang Zhang, Haibo Zhu
A series of robust N-heterocyclic carbene palladacycles have been successfully developed, which exhibited high catalytic activity and selectivity toward the challenging amination of N-heteroaryl chlorides. Diverse primary and secondary amines are fully compatible with our new developed catalytic system. Remarkably, no double amination products could be detected when primary amines were utilized in our catalytic transformation. Furthermore, the protocol has been successfully extended to synthesize Rosiglitazone, a clinical drug for diabetes mellitus, highlighting its potential pharmaceutical feasibility...
July 18, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28719222/how-drug-life-cycle-management-patent-strategies-may-impact-formulary-management
#6
Jan Berger, Jeffrey D Dunn, Margaret M Johnson, Kurt R Karst, W Chad Shear
Drug manufacturers may employ various life-cycle management patent strategies, which may impact managed care decision making regarding formulary planning and management strategies when single-source, branded oral pharmaceutical products move to generic status. Passage of the Hatch-Waxman Act enabled more rapid access to generic medications through the abbreviated new drug application process. Patent expirations of small-molecule medications and approvals of generic versions have led to substantial cost savings for health plans, government programs, insurers, pharmacy benefits managers, and their customers...
October 2016: American Journal of Managed Care
https://www.readbyqxmd.com/read/28717021/genetic-and-metabolic-engineering-in-diatoms
#7
REVIEW
Weichao Huang, Fayza Daboussi
Diatoms have attracted considerable attention due to their success in diverse environmental conditions, which probably is a consequence of their complex origins. Studies of their metabolism will provide insight into their adaptation capacity and are a prerequisite for metabolic engineering. Several years of investigation have led to the development of the genome engineering tools required for such studies, and a profusion of appropriate tools is now available for exploring and exploiting the metabolism of these organisms...
September 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28712924/advanced-methodologies-for-cocrystal-synthesis
#8
Dennis Douroumis, Steven A Ross, Ali Nokhodchi
Pharmaceutical cocrystals are multicomponent systems composed of two or more molecules and held together by H-bonding. Currently, cocrystals provide exciting opportunities in the pharmaceutical industry for the development and manufacturing of new medicines by improving poor physical properties of Active Pharmaceutical Ingredients (APIs) such as processability, solubility, stability and bioavailability. According to the recent reclassification, cocrystals are considered as drug polymorph rather a new API which has a significant impact on drug development, regulatory submissions and intellectual property protection...
July 13, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28711855/exploiting-and-engineering-hemoproteins-for-abiological-carbene-and-nitrene-transfer-reactions
#9
REVIEW
Oliver F Brandenberg, Rudi Fasan, Frances H Arnold
The surge in reports of heme-dependent proteins as catalysts for abiotic, synthetically valuable carbene and nitrene transfer reactions dramatically illustrates the evolvability of the protein world and our nascent ability to exploit that for new enzyme chemistry. We highlight the latest additions to the hemoprotein-catalyzed reaction repertoire (including carbene Si-H and C-H insertions, Doyle-Kirmse reactions, aldehyde olefinations, azide-to-aldehyde conversions, and intermolecular nitrene C-H insertion) and show how different hemoprotein scaffolds offer varied reactivity and selectivity...
July 13, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28710617/steroid-bioconversions
#10
Marina V Donova
Steroid modifications by selected wild-type and engineered strains of microorganisms became an effective tool for the production of high-valued steroidal drugs and their precursors for the pharmaceutical industry. Some microorganisms are effective at the performance of sterol side-chain degradation, oxyfunctionalization of steroid core, and redox reactions at different positions of the steroid molecule. A number of bioprocesses using steroid-transforming microbial strains are well established on an industrial level...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28709400/broad-range-potential-of-asphodelus-microcarpus-leaves-extract-for-drug-development
#11
Amalia Di Petrillo, Antonella Fais, Francesca Pintus, Celestino Santos-Buelga, Ana M González-Paramás, Vincenzo Piras, Germano Orrù, Antonello Mameli, Enzo Tramontano, Aldo Frau
BACKGROUND: Many plants have been used in traditional medicine for their antibacterial, antifungal, antiprotozoal, antiviral, antidiarrhoeal, analgesic, antimalarial, antioxidant, anti-inflammatory and anticancer activities. In order to find novel antimicrobial and antiviral agents, the aim of the present study was the evaluation of the antibacterial and antibiofilm susceptibility of Asphodelus microcarpus leaves extract. Moreover, the antiviral activity and the phytochemical composition of the active extract were also determined...
July 14, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28707494/dry-coating-of-solid-dosage-forms-an-overview-of-processes-and-applications
#12
Anastasia Foppoli, Alessandra Maroni, Matteo Cerea, Lucia Zema, Andrea Gazzaniga
Dry coating techniques enable manufacturing of coated solid dosage forms with no, or very limited, use of solvents. As a result, major drawbacks associated with both organic solvents and aqueous coating systems can be overcome, such as toxicological, environmental and safety-related issues on one hand as well as costly drying phases and impaired product stability on the other. The considerable advantages related to solventless coating has been prompting a strong research interest in this field of pharmaceutics...
July 14, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28702080/investigation-of-poly-%C3%AE-glutamic-acid-production-via-online-determination-of-viscosity-and-oxygen-transfer-rate-in-shake-flasks
#13
Lena Regestein Née Meissner, Julia Arndt, Thomas G Palmen, Tim Jestel, Hitoshi Mitsunaga, Eiichiro Fukusaki, Jochen Büchs
BACKGROUND: Poly(γ-glutamic acid) (γ-PGA) is a biopolymer with many useful properties making it applicable for instance in food and skin care industries, in wastewater treatment, in biodegradable plastics or in the pharmaceutical industry. γ-PGA is usually produced microbially by different Bacillus spp. The produced γ-PGA increases the viscosity of the fermentation broth. In case of shake flask fermentations, this results in an increase of the volumetric power input. The power input in shake flasks can be determined by measuring the torque of an orbitally rotating lab shaker...
2017: Journal of Biological Engineering
https://www.readbyqxmd.com/read/28699508/edible-vaccine-current-status-and-future-perspectives
#14
Sayed Sartaj Sohrab, Mohd Suhail, Mohammad A Kamal, Azamal Husen, Esam I Azhar
Growing world population and continuous disease emergence have invited the development of more efficient new vaccines against a range of diseases. Conventional vaccines are being wildly used in the world but their production requires higher cost, more time and better infrastructure. Thus, the idea of plant-based edible vaccine technology has emerged and showed promising results with strong and effective protection against many diseases. Plants have been utilized since more than two decades as pharmaceuticals against many diseases...
July 11, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28690099/electrospun-polymeric-nanofibers-new-horizons-in-drug-delivery
#15
REVIEW
Shreya Thakkar, Manju Misra
Nanofibers obtained using electrospinning technique are being used since ages especially in fields of textile industry, sensors, filters, protective clothing and tissue engineering. Their use as drug delivery system is an emerging platform in the field of pharmaceuticals and now-a-days formulation scientists are paying great attention to the technology due to several advantages prime being easy modulation of drug release profile depending upon the properties of polymer/polymeric blends/other materials used...
July 8, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28687273/pharmaceutical-aspects-of-salt-and-cocrystal-forms-of-apis-and-characterization-challenges
#16
Paolo Cerreia Vioglio, Michele R Chierotti, Roberto Gobetto
In recent years many efforts have been devoted to the screening and the study of new solid-state forms of old active pharmaceutical ingredients (APIs) with salification or co-crystallization processes, thus modulating final properties without changing the pharmacological nature. Salts, hydrates/solvates, and cocrystals are the common solid-state forms employed. They offer the intriguing possibility of exploring different pharmaceutical properties for a single API in the quest of enhancing the final drug product...
July 5, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28685674/review-on-anti-cancer-activity-in-wild-plants-of-the-middle-east
#17
Einav Mayzlish-Gati, Marcelo Fridlender, Rameshprabu Nallathambi, Gopinath Selvaraj, Stalin Nadarajan, Hinanit Koltai
Plants have been a source of medicine for thousands of years. In many different cultures they became an integral part of local folklore. Plants have since become a source of well-known drugs and pharmaceuticals that are widely used in modern day medicine. Cancer is among the leading causes of mortality worldwide and the number of new cases is expected to rise over the next 2 decades. Some herbal medicines have a therapeutic effect which inhibits cancer via different mechanisms. The Mediterranean basin is one of the richest biodiversity areas in the world...
July 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28685295/regulation-of-stilbene-biosynthesis-in-plants
#18
REVIEW
A S Dubrovina, K V Kiselev
This review analyzes the advances in understanding the natural signaling pathways and environmental factors regulating stilbene biosynthesis. We also discuss the studies reporting on stilbene content and repertoire in plants. Stilbenes, including the most-studied stilbene resveratrol, are a family of phenolic plant secondary metabolites that have been the subject of intensive research due to their valuable pharmaceutical effects and contribution to plant disease resistance. Understanding the natural mechanisms regulating stilbene biosynthesis in plants could be useful for both the development of new plant protection strategies and for commercial stilbene production...
July 6, 2017: Planta
https://www.readbyqxmd.com/read/28679382/ethnopharmacological-survey-of-home-remedies-used-for-treatment-of-hair-and-scalp-and-their-methods-of-preparation-in-the-west-bank-palestine
#19
Abdel Naser Zaid, Nidal Amin Jaradat, Ahmad Mustafa Eid, Hamzeh Al Zabadi, Abdulsalam Alkaiyat, Saja Adam Darwish
BACKGROUND: Natural products have many uses and purposes, including those linked to pharmaceutics and cosmetics. The aim of this study was to investigate the use of natural remedies for the treatment of hair and scalp disorders in the West Bank, Palestine. METHODS: An ethnopharmacological survey of herbal remedies and other natural products used in cosmetics and cosmeceuticals was carried out in the West Bank, Palestine. A questionnaire was distributed to 267 herbalists, traditional healers, hairdressers and rural dwellers...
July 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28677575/from-class-waivers-to-precision-medicine-in-paediatric-oncology
#20
REVIEW
Andrew D J Pearson, Stefan M Pfister, Andre Baruchel, Jean-Pierre Bourquin, Michela Casanova, Louis Chesler, François Doz, Angelika Eggert, Birgit Geoerger, David T W Jones, Pamela R Kearns, Jan J Molenaar, Bruce Morland, Gudrun Schleiermacher, Johannes H Schulte, Josef Vormoor, Lynley V Marshall, C Michel Zwaan, Gilles Vassal
New drugs are crucially needed for children with cancer. The European Paediatric Regulation facilitates paediatric class waivers for drugs developed for diseases only occurring in adults. In this Review, we retrospectively searched oncology drugs that were class waivered between June, 2012, and June, 2015. 147 oncology class waivers were confirmed for 89 drugs. Mechanisms of action were then assessed as potential paediatric therapeutic targets by both a literature search and an expert review. 48 (54%) of the 89 class-waivered drugs had a mechanisms of action warranting paediatric development...
July 2017: Lancet Oncology
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