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Expert Opinion on Drug Delivery

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https://www.readbyqxmd.com/read/28043165/oromucosal-multilayer-films-for-tailor-made-controlled-drug-delivery
#1
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 3, 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
#2
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
#3
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
https://www.readbyqxmd.com/read/27967247/how-are-we-improving-the-delivery-to-back-of-the-eye-advances-and-challenges-of-novel-therapeutic-approaches
#4
Vibhuti Agrahari, Vivek Agrahari, Abhirup Mandal, Dhananjay Pal, Ashim K Mitra
Drug delivery to the back of the eye requires strategic approaches that guarantee the long-term therapeutic effect with patient compliance. Current treatments for posterior eye diseases suffer from significant challenges including frequent intraocular injections of anti-VEGF agents and related adverse effects in addition to the high cost of the therapy. Areas covered: Treatment challenges and promising drug delivery approaches for posterior segment eye diseases, such as age-related macular degeneration (AMD) are summarized...
December 28, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892726/design-and-characterization-of-neurodurable-gellan-xanthan-ph-responsive-hydrogels-for-controlled-drug-delivery
#5
Poornima Ramburrun, Pradeep Kumar, Yahya E Choonara, Lisa C du Toit, Viness Pillay
OBJECTIVES: The purpose of this study was to develop novel, porous neurodurable interpenetrating networks of gellan-xanthan hydrogel conduits intercalated with pristine polymethyl methacrylate (PMMA) particles for the sustained and concurrent release of two model compounds: bovine serum albumin (BSA) and diclofenac sodium. METHODS: Hydrogel conduits were synthesized using a thermal-ionic crosslinking mechanism with direct incorporation of PMMA. The 15 formulations, generated using a Box-Behnken experimental design, were analyzed for drug release, swelling, erosion and textural properties...
December 21, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27918209/controlling-in-situ-crystallization-of-pharmaceutical-particles-within-the-spray-dryer
#6
Meng Wai Woo, May Ginn Lee, Soroush Shakiba, Shahnaz Mansouri
Simultaneous solidification and in situ crystallization (or partial crystallization) of droplets within the drying chamber are commonly encountered in the spray drying of pharmaceuticals. The crystallinity developed will determine the functionality of the powder and its stability during storage. This review discusses strategies that can be used to control the in situ crystallization process. Areas covered: The premise of the strategies discussed focuses on the manipulation of the droplet drying rate relative to the timescale of crystallization...
December 20, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27935765/gb3-binding-lectins-as-potential-carriers-for-transcellular-drug-delivery
#7
Stefan K Müller, Isabel Wilhelm, Thomas Schubert, Katharina Zittlau, Anne Imberty, Josef Madl, Thorsten Eierhoff, Roland Thuenauer, Winfried Römer
OBJECTIVES: Epithelial cell layers as well as endothelia forming the blood-brain barrier can drastically reduce the efficiency of drug targeting. Our goal was to investigate lectins recognizing the glycosphingolipid globotriaosylceramide (Gb3) for their potential as carriers for transcytotic drug delivery. METHODS: We utilized an in vitro model based on Madin-Darby canine kidney cells transfected with Gb3 synthase to characterize transcytosis of the Gb3-binding lectins LecA from Pseudomonas aeruginosa and the B-subunit of Shiga toxin (StxB)...
December 16, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27935334/antiretroviral-drug-loaded-nanoparticles-in-films-a-new-option-for-developing-vaginal-microbicides
#8
José das Neves, Bruno Sarmento
No abstract text is available yet for this article.
December 14, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892713/hydrophobic-ion-pairing-as-a-strategy-to-improve-drug-encapsulation-into-lipid-nanocarriers-for-the-cancer-treatment
#9
Mariana Silva Oliveira, Gisele Castro Assis Goulart, Lucas Antônio Miranda Ferreira, Guilherme Carneiro
Incorporation of anticancer drugs with low lipophilicity in lipid nanocarriers is usually low, which limits the utilization of this strategy in cancer therapy. However, the complexation of these drugs with lipophilic ion pairs containing ionizable groups has been reported to improve their incorporation in nanocarriers such as solid lipid nanoparticles (SLNs), nanostructured lipid nanocarriers (NLCs), and nanoemulsions (NEs). Therefore, those nanocarriers have shown an increase in efficacy and lower toxicity compared with the free drugs, particularly if the counter ion utilized has anticancer activity...
December 14, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892760/microbubble-mediated-ultrasound-drug-delivery-and-therapeutic-monitoring
#10
Charles A Sennoga, Emma Kanbar, Laurent Auboire, Paul-Armand Dujardin, Damien Fouan, Jean-Michel Escoffre, Ayache Bouakaz
Recent developments in ultrasound imaging and ultrasound contrast agents (UCAs) improved diagnostic confidence in echography and set into motion their combined use as a tool for drug delivery and therapeutic monitoring. Non-invasive, precise and targeted delivery of drug molecules to pathological tissues by employing different mechanisms of drug release is becoming feasible. Areas covered: We sought to describe: the nature and features of UCAs; outline current contrast-specific imaging modes; before describing a variety of strategies for using ultrasound and microbubbles as a drug delivery system...
December 11, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892757/basic-principles-and-current-status-of-transcorneal-and-transscleral-iontophoresis
#11
Taís Gratieri, Verena Santer, Yogeshvar N Kalia
Iontophoresis is an active non-invasive drug delivery technique that can increase the transport of charged and neutral molecules into and across biological membranes. Most research to-date has focused on (per)cutaneous iontophoretic drug delivery. However, recent studies illustrate its potential for drug delivery to the eye: corneal iontophoresis may enable targeted topical therapy of intracorneal diseases, whereas transscleral iontophoresis may enable non-invasive intraocular drug delivery. Areas covered: We describe iontophoretic principles in the context of ocular delivery before providing a summary of recent preclinical studies involving transcorneal and transscleral iontophoresis in vitro and in vivo...
December 11, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27897039/use-of-nanotechnology-for-improved-pharmacokinetics-and-activity-of-immunogenic-cell-death-inducers-used-in-cancer-chemotherapy
#12
Martyna Janicka, Jerzy Gubernator
Immunogenic cell death inducers (ICD inducers) are a diverse group of therapeutic molecules capable of eliciting an adaptive immune response against the antigens present on the surface of dying cancer cells. Most of these molecules suffer from low bioavailability, high toxicity and poor pharmacokinetics which limit their application. It is believed that nanotechnology, in particular nano-sized nanocarriers, can address most of the issues that limit the use of ICD inducers. Area covered: The mechanism of action of ICD inducers and their limitations is discussed...
December 8, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892717/dental-implants-modified-with-drug-releasing-titania-nanotubes-therapeutic-potential-and-developmental-challenges
#13
Karan Gulati, Sašo Ivanovski
The transmucosal nature of dental implants presents a unique therapeutic challenge, requiring not only rapid establishment and subsequent maintenance of osseointegration, but also the formation of resilient soft tissue integration. Key challenges in achieving long-term success are sub-optimal bone integration in compromised bone conditions and impaired trans-mucosal tissue integration in the presence of a persistent oral microbial biofilm. These challenges can be targeted by employing a drug-releasing implant modification such as TiO2 nanotubes (TNTs), engineered on titanium surfaces via electrochemical anodization...
December 8, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27911116/finding-the-right-route-for-insulin-delivery-an-overview-of-implantable-pump-therapy
#14
Lia Bally, Hood Thabit, Roman Hovorka
Implantable pump therapy adopting the intraperitoneal route of insulin delivery has been available for the past three decades. The key rationale for implantable pump therapy is the restoration of the portal-peripheral insulin gradient of the normal physiology. Uptake in clinical practice is limited to specialized centers and selected patient populations. Areas covered: Implantable pump therapy is discussed, including technical aspects, rationale for its use, and glycemic and non-glycemic effects. Target populations, summaries of clinical studies and issues related to implantable pump therapy are highlighted...
December 7, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27898219/use-of-microwave-to-improve-nanomedicine-application-on-skin
#15
Tin Wui Wong
No abstract text is available yet for this article.
December 7, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892730/delivery-of-therapeutic-rna-cleaving-oligodeoxyribonucleotides-deoxyribozymes-from-cell-culture-studies-to-clinical-trials
#16
Alesya A Fokina, Boris P Chelobanov, Masayuki Fujii, Dmitry A Stetsenko
Development of efficient in vivo delivery systems remains a major challenge en route to clinical application of antisense technology, including RNA-cleaving molecules such as deoxyribozymes (DNAzymes). The mechanisms of oligonucleotide uptake and trafficking are clearly dependent on cell type and the type of oligonucleotide analogue. It appears likely that each particular disease target would pose its own specific requirements for a delivery method. Areas covered. In this review we will discuss the available options for DNAzyme delivery in vitro and in vivo, outline various exogenous and endogenous strategies that have been, or are still being, developed and ascertain their applicability with emphasis on those methods that are currently being used in clinical trials...
December 7, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892721/social-aspects-in-additive-manufacturing-of-pharmaceutical-products
#17
Johanna Lind, Sofia Kälvemark Sporrong, Susanne Kaae, Jukka Rantanen, Natalja Genina
Additive manufacturing (AM) techniques, such as drug printing, represent a new engineering approach that can implement the concept of personalized medicine via on-demand manufacturing of dosage forms with individually adjusted doses. Implementation of AM principles, such as pharmacoprinting, will challenge the entire drug distribution chain and affect the society at different levels. Areas covered: This work summarizes the concept of personalized medicine and gives an overview of possibilities for monitoring patients' health...
December 7, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892715/incorporation-of-chemotherapeutic-agent-and-photosensitizer-in-a-low-temperature-sensitive-liposome-for-effective-chemo-hyperthermic-anticancer-activity
#18
Hanh Thuy Nguyen, Tuan Hiep Tran, Raj Kumar Thapa, Tung Thanh Pham, Jee-Heon Jeong, Yu Seok Youn, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
OBJECTIVES: In this study, we combined chemo- and hyperthermia therapy in a low temperature-sensitive liposome (LTSL) for potential cancer treatment. METHODS: Docetaxel (DOC) and indocyanine green (ICG) as a therapeutic agent and photosensitizer, respectively, were incorporated in a low temperature-sensitive liposome (LTSL/DI). Nanoparticles were evaluated for the physicochemical characterizations, in vitro uptake and cytotoxicity, and furthermore in vivo anticancer activity...
December 7, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892718/the-utility-of-dna-nanostructures-for-drug-delivery-in-vivo
#19
Anders H Okholm, Jørgen Kjems
No abstract text is available yet for this article.
December 5, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27882780/solid-lipid-nanoparticles-and-nanostructured-lipid-carrier-based-nanotherapeutics-in-treatment-of-psoriasis-a-comparative-study
#20
Rhythm Arora, Sameer S Katiyar, Varun Kushwah, Sanyog Jain
BACKGROUND: The present work focuses on the development of ultra-small solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) encapsulating cyclosporine and calcipotriol, further incorporated into gel, increasing their penetration through the skin. RESEARCH DESIGN AND METHODS: Developed SLN and NLC were characterized regarding particle size, zeta potential, %entrapment efficiency and dispersed into carbopol 934P-NF gel. Gel was further characterized for rheological behavior and spreadability...
December 4, 2016: Expert Opinion on Drug Delivery
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