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Expert Opinion on Drug Delivery

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https://www.readbyqxmd.com/read/28696796/lng-ius-12-a-19-5-levonorgestrel-releasing-intrauterine-system-for-prevention-of-pregnancy-for-up-to-five-years
#1
Anita L Nelson
Globally, intrauterine devices (IUDs) are the second most commonly used form of reversible contraception because of their high efficacy, safety, convenience and cost effectiveness. The levonorgestrel releasing intrauterine system with daily average release of 20 mcg (LNG-IUS 20) is the popular choice because of its favorable bleeding patterns and many noncontraceptive benefits. A three year (LNG-IUS 8) became available three years ago. More recently, the LNG-IUS 12 was added. This new IUD shares a smaller frame, narrow inserter and lower rate of amenorrhea with the LNG-IUS 8, but it offers the five years of contraceptive protection of the LNG-IUS 20...
July 11, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28662354/overview-on-zein-protein-a-promising-pharmaceutical-excipient-in-drug-delivery-systems-and-tissue-engineering
#2
Gihan Labib
Natural pharmaceutical excipients have been applied extensively in the past decades owing to their safety and biocompatibility. Zein, a natural protein of plant origin offers great benefit over other synthetic polymers used in controlled drug and biomedical delivery systems. It was used in a variety of medical fields including pharmaceutical and biomedical drug targeting, vaccine, tissue engineering, and gene delivery. Being biodegradable and biocompatible, the current review focuses on the history and the medical application of zein as an attractive still promising biopolymer...
July 6, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28643528/modulating-release-of-ranibizumab-and-aflibercept-from-thiolated-chitosan-based-hydrogels-for-potential-treatment-of-ocular-neovascularization
#3
Miguel Moreno, Poh Yih Pow, Tan Su Teng Tabitha, Sonali Nirmal, Andreas Larsson, Krishna Radhakrishnan, Jayabalan Nirmal, Soo Tng Quah, Susana Geifman Shochat, Rupesh Agrawal, Subbu Venkatraman
BACKGROUND: This paper describes the synthesis of thiolated chitosan-based hydrogels with varying degrees of crosslinking that has been utilized to modulate release kinetics of two clinically relevant FDA-approved anti-VEGF protein drugs, ranibizumab and aflibercept. These hydrogels have been fabricated into disc shaped structures for potential use as patches on ocular surface. METHODS: Protein conformational changes and aggregation after loading and release was evaluated by circular dichroism (CD), steady-state tryptophan fluorescence spectroscopy, electrophoresis and size-exclusion chromatography (SEC)...
July 3, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28627940/delivery-of-drugs-growth-factors-genes-and-stem-cells-via-intrapericardial-epicardial-and-intramyocardial-routes-for-sustained-local-targeted-therapy-of-myocardial-disease
#4
M G Katz, A S Fargnoli, R J Hajjar, C R Bridges
No abstract text is available yet for this article.
June 22, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28485988/doxycycline-hydrochloride-metronidazole-solid-lipid-microparticles-gels-for-treatment-of-periodontitis-development-in-vitro-and-in-vivo-clinical-evaluation
#5
Heba A Gad, Amany O Kamel, Ola M Ezzat, Hadir F El Dessouky, Omaima A Sammour
OBJECTIVE: To formulate solid lipid microparticles (SLMs) encapsulating doxycycline hydrochloride (DH) and metronidazole (MT) for the treatment of periodontal diseases. METHODS: SLMs were prepared applying hot homogenization method, using different types of lipids and stabilized with various types and concentrations of surfactants. The optimized formula was subjected to freeze-drying followed by incorporation into poloxamer gel. Microbiological and clinical evaluation of the selected SLMs on patients suffering from periodontal diseases was performed...
May 29, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28423954/the-design-and-scale-up-of-spray-dried-particle-delivery-systems
#6
Ali Al-Khattawi, Andrew Bayly, Andrew Phillips, David Wilson
The rising demand for pharmaceutical particles with tailored physicochemical properties has opened new markets for spray drying especially for solubility enhancement, improving inhalation medicines and stabilization of biopharmaceuticals. Despite this, the spray drying literature is scattered and often does not address the principles underpinning robust development of pharmaceuticals. It is therefore necessary to present clearer picture of the field and highlight the factors influencing particle design and scale-up...
May 4, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892721/social-aspects-in-additive-manufacturing-of-pharmaceutical-products
#7
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...
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27892717/dental-implants-modified-with-drug-releasing-titania-nanotubes-therapeutic-potential-and-developmental-challenges
#8
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...
August 2017: 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...
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27881028/corrigendum
#10
(no author information available yet)
No abstract text is available yet for this article.
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27866420/cancer-stem-cell-targeted-therapeutics-and-delivery-strategies
#11
Gulzar Ahmad, Mansoor M Amiji
Cancer initiating or stem cells (CSCs) are a small population of cells in the tumor mass, which have been reported to be present in different types of cancers. CSCs usually reside within the tumor and are responsible for reoccurrence of cancer. The imprecise, inaccessible nature and increased efflux of conventional therapeutic drugs make these cells resistant to drugs. We discuss the specific markers for identification of these cells, role of CSCs in chemotherapy resistance and use of different therapeutic means to target them, including elucidation of specific cell markers, exploitation of different signaling pathways and use of nanotechnology...
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27835926/mouthwashes-in-the-21-st-century-a-narrative-review-about-active-molecules-and-effectiveness-on-the-periodontal-outcomes
#12
Gianluca M Tartaglia, Santhosh Kumar, Claudia Debora Fornari, Eleonora Corti, Stephen Thaddeus Connelly
Poor oral hygiene is a major risk factor for oral diseases. Regular home-based care is essential to maintain good oral hygiene. In particular, mouthrinses can support conventional tooth brushing in reducing accumulation of oral plaque. Areas covered: The most common molecules contained in mouthrinses (chlorhexidine, essential oils, cetyl pyridinium chloride, triclosan, octeneidine, delmopinol, polyvinylpyrrolidone, hyaluronic acid, natural compounds) are discussed, together with relevant clinical and in vitro studies, focusing on their effects on periodontal health...
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27776446/inhaled-phage-therapy-a-promising-and-challenging-approach-to-treat-bacterial-respiratory-infections
#13
Elsa Bodier-Montagutelli, Eric Morello, Guillaume L'Hostis, Antoine Guillon, Emilie Dalloneau, Renaud Respaud, Nikita Pallaoro, Hélène Blois, Laurent Vecellio, Jérôme Gabard, Nathalie Heuzé-Vourc'h
Bacterial respiratory tract infections (RTIs) are increasingly difficult to treat due to evolving antibiotic resistance. In this context, bacteriophages (or phages) are part of the foreseen alternatives or combination therapies. Delivering phages through the airways seems more relevant to accumulate these natural antibacterial viruses in proximity to their bacterial host, within the infectious site. Areas covered: This review addresses the potential of phage therapy to treat RTIs and discusses preclinical and clinical results of phages administration in this context...
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27759437/the-achievement-of-ligand-functionalized-organic-polymeric-nanoparticles-for-treating-multidrug-resistant-cancer
#14
Wing-Hin Lee, Ching-Yee Loo, Chean-Ring Leong, Paul M Young, Daniela Traini, Ramin Rohanizadeh
The effectiveness of conventional cancer chemotherapy is hampered by the occurrence of multidrug resistance (MDR) in tumor cells. Although many studies have reported the development of novel MDR chemotherapeutic agents, clinical success is lacking owing to the high associated toxicity. Nanoparticle-based delivery of chemotherapeutic drugs has emerged as alternative approach to treat MDR cancers via exploitation of leaky vasculature in the tumor microenvironment. Accordingly, functionalization of nanoparticles with target specific ligands can be employed to achieve significant improvements in the treatment of MDR cancer...
August 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28673165/response-to-the-letter-to-the-editor-delivery-of-drugs-growth-factors-genes-and-stem-cells-via-intrapericardial-epicardial-and-intramyocardial-routes-for-sustained-local-targeted-therapy-of-myocardial-disease
#15
https://www.readbyqxmd.com/read/28394190/technology-derived-storage-solutions-for-stabilizing-insulin-in-extreme-weather-conditions-i-the-vivicap-1-device
#16
Andreas Pfützner, Gidi Pesach, Ron Nagar
BACKGROUND: Injectable life-saving drugs should not be exposed to temperatures <4°C/39°F or >30°C/86°F. Frequently, weather conditions exceed these temperature thresholds in many countries. Insulin is to be kept at 4-8°C/~ 39-47°F until use and once opened, is supposed to be stable for up to 31 days at room temperature (exception: 42 days for insulin levemir). Extremely hot or cold external temperature can lead to insulin degradation in a very short time with loss of its glucose-lowering efficacy...
June 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28338352/formulation-challenges-for-21st-century-topical-and-transdermal-delivery-systems
#17
Mayank Singhal, Maria Lapteva, Yogeshvar N Kalia
No abstract text is available yet for this article.
June 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28266887/strategies-to-optimize-sirna-delivery-to-hepatocellular-carcinoma-cells
#18
REVIEW
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...
June 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27690671/peptides-as-a-therapeutic-avenue-for-nanocarrier-aided-targeting-of-glioma
#19
REVIEW
Mrunal Vitthal Wanjale, G S Vinod Kumar
Very few successful interventions have been possible in glioma therapy owing to its aggressive nature as well as its hindrance of targeted therapy together with the limited access afforded by the blood-brain barrier (BBB). With the advent of nanotechnology based delivery vehicles such as micelles, dendrimers, polymer-based nanoparticles and nanogels, the breach of the BBB has been facilitated. However, there remains the issue of targeted therapy for glioma cells. Peptide-mediated surface modification of nanocarriers serves this purpose, extending the ability to target glioma further than the enhanced permeability and retention effect...
June 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27626885/challenges-and-recent-advances-in-the-subcutaneous-delivery-of-insulin
#20
REVIEW
Xiaohui Guo, Wei Wang
The morbidity of diabetes mellitus is increasing, and subcutaneous injection of exogenous insulin is well established as an effective therapeutic strategy for reducing complications associated with the disease. However, the pain that accompanies repeated injections is an important drawback, and can detrimentally affect the adherence to therapy. Recently, there have been great improvements in injection devices and techniques, including the development of microneedle systems and quantitative injection technologies, which have increased the accuracy of injection, decreased leakage of insulin to the skin surface, and reduced pain...
June 2017: Expert Opinion on Drug Delivery
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