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Expert Opinion on Drug Delivery

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https://www.readbyqxmd.com/read/28291372/spotlight-on-the-delivery-of-photosensitizers-different-approaches-for-photodynamic-based-therapies
#1
Diogo Silva Pellosi, Priscila da Costa Carvalho de Jesus, Antonio Claudio Tedesco
Nanomedicine development allowed the discovery of new photosensitizers (PS) and drug delivery systems (DDS) to overcome current issues on phototherapy. Nano-engineered materials have the potential to improve the solubility of PS, control drug pharmacokinetics, decreasing side effects, increasing bioavailability, and overcoming multidrug resistance. A recent approach is the co-delivery of PS with other therapeutic agents in a multimodal platform for synergic and improved results. Areas Covered: This paper discusses the delivery of PS-nanostructured platforms for conventional, photothermal, and antimicrobial photodynamic therapies, as well as in a recent therapeutic modality for photobiomodulation, covering applications of cancer diagnosis, targeting to skin pathogens, photoregeneration and wound healing...
March 14, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28290714/polymeric-micelles-for-targeted-tumor-therapy-of-platinum-anticancer-drugs
#2
Yuki Mochida, Horacio Cabral, Kazunori Kataoka
Platinum anticancer drugs are effective against a wide range of tumors, though their severe adverse effects and resistance remain unresolved. A breakthrough in these drawbacks could be achieved by using polymeric micelles, i.e. nanoassemblies having a drug loaded core and a protective hydrophilic shell, incorporating platinum drugs for tumor-targeted delivery. Areas covered: The development of cisplatin- (NC-6004) and DACHPt-loaded micelles (NC-4016) has been reviewed, particularly, from the viewpoint of the effect of their structural features on the tumor-targeting efficacy...
March 14, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28286978/seeking-better-topical-delivery-technologies-of-moisturizing-agents-for-enhanced-skin-moisturization
#3
Hyeongmin Kim, Jeong Tae Kim, Sonia Barua, Seung-Yup Yoo, Seong-Chul Hong, Kyung Bin Lee, Jaehwi Lee
An adequate hydration level is essential to maintain epidermal barrier functions and normal physiological activities of skin tissues. Diverse moisturizing agents and pharmaceutical formulations for dermal deliveries have thus extensively been investigated. This review comprehensively discusses scientific outcomes of moisturizing agents and pharmaceutical vehicles for skin moisturization, thereby providing insight into designing innovative pharmaceutical formulations for effective skin moisturization. Areas covered: We discussed the functions of various moisturizing agents ranging from conventional creams to novel moisturizers which has recently been explored...
March 13, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28276966/in-situ-forming-biodegradable-poly-%C3%AE%C2%B5-caprolactone-microsphere-systems-a-challenge-for-transarterial-embolization-therapy-in-vitro-and-preliminary-ex-vivo-studies
#4
Andrea Salis, Elena P Porcu, Elisabetta Gavini, Giulia R Fois, Antonia Icaro Cornaglia, Giovanna Rassu, Marco Diana, Marcello Maestri, Paolo Giunchedi, Ioannis Nikolakakis
BACKGROUND: In situ forming biodegradable poly(ε-caprolactone) (PCL) microspheres (PCL-ISM) system was developed as a novel embolic agent for transarterial embolization (TAE) therapy of hepatocellular carcinoma (HCC). Ibuprofen sodium (Ibu-Na) was loaded on this platform to evaluate its potential for the treatment of post embolization syndrome. METHODS: The influence of formulation parameters on the size/shape, encapsulation efficiency and drug release was investigated using mixture experimental design...
March 1, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28276967/near-infrared-biophotonics-based-nanodrug-release-systems-and-their-potential-application-for-neuro-disorders
#5
Vidya Sagar, Madhavan Nair
Near-infrared ray (NIR)-responsive 'smart' nanoagents allow spatial and temporal control over the drug delivery process, noninvasively, without affecting healthy tissues and therefore they possess high potential for on-demand, targeted drug/gene delivery. Various NIR-responsive drug/gene delivery techniques are under investigation for peripheral disorders (especially for cancer). Nonetheless, their potential not been extensively examined for brain biomedical application. Areas covered: This review focuses on NIR-responsive characteristics of different NIR-nanobiophotonics-based nanoagents and associated drug delivery strategies...
February 28, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28276968/delivery-of-drugs-growth-factors-genes-and-stem-cells-via-intrapericardial-epicardial-and-intramyocardial-routes-for-sustained-local-targeted-therapy-of-myocardial-disease
#6
Mikhail Maslov, Stephan Foianini, Mark Lovich
Local myocardial delivery (LMD) of therapeutic agents is a promising strategy that aims to treat various myocardial pathologies. It is designed to deliver agents directly to the myocardium and minimize their extracardiac concentrations and side effects. LMD aims to enhance outcomes of existing therapies by broadening their therapeutic window and to utilize new agents that could not be otherwise be implemented systemically. Areas covered: This article provides a historical overview of six decades LMD evolution in terms of the approaches, including intrapericardial, epicardial, and intramyocardial delivery, and the wide array of classes of agents used to treat myocardial pathologies...
February 22, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28276969/the-influence-of-excipients-on-physical-and-pharmaceutical-properties-of-oral-lyophilisates-containing-a-pregabalin-acetaminophen-combination
#7
Aurica P Chiriac, Alina Diaconu, Loredana E Nita, Nita Tudorachi, Liliana Mititelu-Tartau, Andreea Creteanu, Oana Dragostin, Daniela Rusu, Gratiela Popa
OBJECTIVES: The purpose of the study was to investigate and characterize the oral lyophilisates containing the pregabalin-acetaminophen drug combination and as xcipients mannitol with microcrystalline cellulose or hydroxypropyl methylcellulose, in order to conclude upon drug-excipient interactions and their stability implications, impact of excipients on drug release and on the physicochemical and mechanical properties of the pharmaceutical formulations. METHODS: The oral tablets were made by using a Christ freeze-dryer alpha 2-4-LSC lyophilizer, and evaluated for stability, drug-excipient compatibility and homogeneity of the prepared pharmaceutical formulations...
February 20, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28266887/strategies-to-optimize-sirna-delivery-to-hepatocellular-carcinoma-cells
#8
Lucia Scarabel, Francesca Perrone, Marica Garziera, Rossella Farra, Mario Grassi, Francesco Musiani, Concetta Russo Spena, Barbara Salis, Lucia De Stefano, Giuseppe Toffoli, Flavio Rizzolio, Federica Tonon, Michela Abrami, Gianluca Chiarappa, Gabriele Pozzato, Giancarlo Forte, Gabriele Grassi, Barbara Dapas
hepatocellular carcinoma (hcc) is the predominant form of primary liver cancer and the second leading cause of cancer-associated mortality worldwide. available therapies for hcc have limited efficacy due to often late diagnosis and the general resistance of hcc to anti-cancer agents; therefore, the development of novel therapeutics is urgently required. small-interfering rna (sirna) molecules are short, double-stranded rnas that specifically recognize and bind the mrna of a target gene to inhibit gene expression...
February 17, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28140682/patient-evaluation-of-the-redesigned-follitropin-alfa-pen-injector
#9
Joan Schertz, Hilary Worton
OBJECTIVES: We aimed to evaluate the overall impressions of learning and subsequent use of the redesigned GONAL-f® (follitropin alfa) pen injector by women with recent or current infertility requiring assisted reproductive technologies (ART) or in vitro fertilization (IVF). METHODS: This was a simulated-use study including 86 women with infertility and 30 fertility nurses. Nurses trained the women on the use of the redesigned pen. The opinions of the women on the pen injector were collected during a questionnaire interview...
February 15, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28151692/oral-liquid-levothyroxine-solves-the-problem-of-tablet-levothyroxine-malabsorption-due-to-concomitant-intake-of-multiple-drugs
#10
Roberto Vita, Flavia Di Bari, Salvatore Benvenga
BACKGROUND: Unlike the tablet (TAB) formulation, liquid L-T4 (LIQ) is directly absorbed in the intestine. The aim of this study was to assess whether LIQ was superior to TAB, such that it would overcome the interference induced by co-ingestion of multiple interfering drugs (ID). METHODS: In this prospective cohort study, we recruited 11 patients with apparent reduced TAB absorption due to ≥ 2 ID, and switched them to LIQ while maintaining the daily dose and the co-ingestion of the ID...
February 13, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28165836/future-prospects-for-gene-delivery-systems
#11
Lale Kuşcu, Ali Demir Sezer
Gene therapy is the challenging area of biotechnology. Despite its promise for critical diseases, it has serious safety and efficiency issues, particularly with regards to gene transfer systems. Areas covered: We examined the current situation with gene transfer systems and addressed problems this technology. We then searched patent applications about in the area from the Patentscope online system, the international patent database. We analyzed the data obtained to get a general idea about gene delivery systems designed for future use and assessed approaches for more efficient, safer and valid delivery systems...
February 6, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28128004/long-acting-slow-effective-release-antiretroviral-therapy
#12
Benson Edagwa, JoEllyn McMillan, Brady Sillman, Howard E Gendelman
Advances in long-acting antiretroviral therapy (ART) can revolutionize current HIV/AIDS treatments. We coined the term 'long-acting slow effective release ART' (LASER ART) to highlight the required formulation properties of slow drug dissolution, poor water-solubility, bioavailability, little-to-no off-target toxicities and improved regimen adherence. Drug carrier technologies characterized by high antiretroviral drug (ARV) payloads in a single carrier improve the pharmacokinetic and pharmacodynamic profiles...
February 6, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28117595/lipid-based-carriers-for-controlled-delivery-of-nitric-oxide
#13
Mahmoud A Elnaggar, Ramesh Subbiah, Dong Keun Han, Yoon Ki Joung
Nitric oxide (NO) is crucial for body homeostasis at moderate levels, but cytotoxic at high levels, thus making it a potential candidate for anticancer therapies and antibacterial surface coatings. To date, NO use has been limited due to its very short half-life. Many strategies have been utilized in an attempt to control the half-life of NO, including (but not limited to) lipid-based carriers, due to their biocompatibility and versatility. Areas covered: In this review, we discuss the latest studies that aimed to control the release of NO via a variety of lipid-based delivery carriers, such as liposomes (echogenic and normal) and microbubbles...
February 6, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28132527/current-manufacturing-processes-of-drug-eluting-sutures
#14
Mathilde Champeau, Jean-Michel Thomassin, Thierry Tassaing, Christine Jérôme
Drug-eluting sutures represent the next generation of surgical sutures since they fulfill their mechanical functions but also deliver the drug in their vicinity after implantation. These implants are produced by a variety of manufacturing processes. Areas covered: This review provides an overview of the current manufacturing processes for drug-eluting suture production and discusses their benefits and drawbacks depending on the type of drugs. The mechanical properties and the drug delivery profile of drug-eluting sutures are highlighted since these implants must fulfill both criteria...
January 30, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28121205/multi-layer-microcapsules-fresh-insights-and-new-applications
#15
Alexander S Timin, David J Gould, Gleb B Sukhorukov
No abstract text is available yet for this article.
January 30, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28103740/novel-functionalization-strategies-to-improve-drug-delivery-from-polymers
#16
Emanuele Mauri, Simonetta Papa, Maurizio Masi, Pietro Veglianese, Filippo Rossi
The utility of controlled and sustained release of drugs from polymeric systems, both bulk (hydrogels) and colloids (nanoparticles), is a key point that should be addressed. Unfortunately, classic delivery systems are essentially driven by diffusion, which is very quick due to the high concentration gradient present in the body. Area covered: This review provides an overview of functionalization strategies which have been used to reduce release rates by taking advantage of post-polymerization functionalization of polymers...
January 30, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28110560/corrigendum
#17
(no author information available yet)
No abstract text is available yet for this article.
January 23, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28043165/oromucosal-multilayer-films-for-tailor-made-controlled-drug-delivery
#18
Sandra Lindert, Jörg Breitkreutz
The oral mucosa has recently become increasingly important as an alternative administration route for tailor-made, controlled drug delivery. Oromucosal multilayer films, assigned to the monograph oromucosal preparations in the Ph.Eur. may be a promising dosage form to overcome the requirements related to this drug delivery site. Areas covered: We provide an overview of multilayer films as drug delivery tools, and discuss manufacturing processes and characterization methods. We focus on the suitability of characterization methods for particular requirements of multilayer films...
January 17, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28042707/clinical-experience-with-drug-delivery-systems-as-tools-to-decrease-the-toxicity-of-anticancer-chemotherapeutic-agents
#19
Raul C Maranhão, Carolina G Vital, Thauany M Tavoni, Silvia R Graziani
The toxicity of chemotherapeutic agents, resulting from their low pharmacological index, introduces considerable discomfort and risk to cancer patients. Among several strategies to reduce the toxicity of chemotherapeutic agents, targeted drug delivery is the most promising one. Areas covered: Liposomes, micelles, albumin-based, polymeric, dendritic and lipid core nanoparticles have been used as carriers to concentrate anticancer drugs in neoplastic tissues, and clinical studies of those preparations are reviewed...
January 1, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28005451/nanoparticles-for-the-delivery-of-therapeutic-antibodies-dogma-or-promising-strategy
#20
Flávia Sousa, Pedro Castro, Pedro Fonte, Patrick J Kennedy, Maria Teresa Neves-Petersen, Bruno Sarmento
Over the past two decades, therapeutic antibodies have demonstrated promising results in the treatment of a wide array of diseases. However, the application of antibody-based therapy implies multiple administrations and a high cost of antibody production, resulting in costly therapy. Another disadvantage inherent to antibody-based therapy is the limited stability of antibodies and the low level of tissue penetration. The use of nanoparticles as delivery systems for antibodies allows for a reduction in antibody dosing and may represent a suitable alternative to increase antibody stability Areas covered: We discuss different nanocarriers intended for the delivery of antibodies as well as the corresponding encapsulation methods...
December 29, 2016: Expert Opinion on Drug Delivery
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