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Drug Delivery and Translational Research

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https://www.readbyqxmd.com/read/28895053/drug-delivery-in-female-reproductive-health
#1
EDITORIAL
David R Friend
No abstract text is available yet for this article.
September 11, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28875468/multifunctional-jnk-inhibiting-nanotherapeutics-for-augmented-elastic-matrix-regenerative-repair-in-aortic-aneurysms
#2
Andrew Camardo, Dhruv Seshadri, Tom Broekelmann, Robert Mecham, Anand Ramamurthi
Growth of abdominal aortic aneurysms (AAA), localized aortal wall expansions, is driven by the disruption and subsequent loss of aortal wall elastic fibers by matrix metalloproteases (MMPs). Since elastic fibers do not naturally regenerate or repair, arresting/reversing AAA growth has not been possible. Previously, we showed utility of doxycycline (DOX), an MMP inhibitor drug, to stimulate elastic matrix neoassembly and crosslinking at low microgram per milliliter doses in addition to inhibiting MMPs. We currently show in aneurysmal smooth muscle cell (SMC) cultures that effects of exogenous DOX in this dose range are linked to its upregulation of transforming growth factor beta (TGF-β1) via its inhibition of the regulatory protein c-Jun-N-terminal kinase 2 (JNK 2)...
September 5, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28849577/evaluation-of-the-antitumor-effects-of-vitamin-k2-menaquinone-7-nanoemulsions-modified-with-sialic-acid-cholesterol-conjugate
#3
Jia Shi, Songlei Zhou, Le Kang, Hu Ling, Jiepeng Chen, Lili Duan, Yanzhi Song, Yihui Deng
Numerous studies have recently shown that vitamin K2 (VK2) has antitumor effects in a variety of tumor cells, but there are few reports demonstrating antitumor effects of VK2 in vivo. The antitumor effects of VK2 in nanoemulsions are currently not known. Therefore, we sought to characterize the antitumor potential of VK2 nanoemulsions in S180 tumor cells in the present study. Furthermore, a ligand conjugate sialic acid-cholesterol, with enhanced affinity towards the membrane receptors overexpressed in tumors, was anchored on the surface of the nanoemulsions to increase VK2 distribution to the tumor tissue...
August 28, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28849387/evaluation-of-tablet-punch-configuration-on-mitigating-capping-by-a-quality-by-design-approach
#4
Parind M Desai, Parthiban Anbalagan, Cheryl J N Koh, Paul W S Heng, Celine V Liew
Capping is a common problem in the manufacture of some types of tablets and unless resolved, the tableting process cannot proceed. Hence, all factors that can help to lessen the likelihood of capping without unnecessarily reduce turret speed and/or compaction force would be tenable. This study investigated the influence of tablet punch configuration on mitigation of tablet capping. Tablets were prepared from high-dose paracetamol-potato starch granules in a rotary tablet press with flat face plain (FFP), flat face bevel edge (FFBE) and flat face radius edge (FFRE) punch configurations...
August 28, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28828703/preparation-of-polycaprolactone-nanoparticles-via-supercritical-carbon-dioxide-extraction-of-emulsions
#5
Adejumoke Lara Ajiboye, Vivek Trivedi, John C Mitchell
Polycaprolactone (PCL) nanoparticles were produced via supercritical fluid extraction of emulsions (SFEE) using supercritical carbon dioxide (scCO2). The efficiency of the scCO2 extraction was investigated and compared to that of solvent extraction at atmospheric pressure. The effects of process parameters including polymer concentration (0.6-10% w/w in acetone), surfactant concentration (0.07 and 0.14% w/w) and polymer-to-surfactant weight ratio (1:1-16:1 w/w) on the particle size and surface morphology were also investigated...
August 21, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28828678/novel-drug-delivery-of-dual-acting-prodrugs-of-hydroxychloroquine-with-aryl-acetic-acid-nsaids-design-kinetics-and-pharmacological-study
#6
Joshi Poorvashree, Dhaneshwar Suneela
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by restricted movements of joints of hand, feet, elbow, knees and neck but principally the synovial joints. Though etiopathology is not exactly known, treatment paradigms are evolving to provide a tighter control over symptoms and disease progression. Current trend is introduction of disease modifying anti-rheumatoid drugs (DMARDs) at early stages. Hydroxychloroquine (HCQ) and nonsteroidal anti-inflammatory drugs (NSAIDs) are two mechanistically different categories widely used in the management of RA where the first arrests the disease progression while the latter offers symptomatic relief...
August 21, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28828592/drug-delivery-for-the-treatment-of-endometriosis-and-uterine-fibroids
#7
REVIEW
David R Friend
Endometriosis and uterine fibroids (also known as uterine leiomyomas) are serious medical conditions affecting large numbers of women worldwide. Many women are asymptomatic but those with symptoms require medical intervention to relieve chronic pain and dysmenorrhea and to address infertility. Drug delivery has played a role in reducing some of the symptoms associated with endometriosis and uterine fibroids. Use of drug delivery systems for both conditions can roughly be divided into two categories: (1) existing systems designed for other indications such as contraception for symptomatic relief and (2) development of novel systems aimed at addressing some of the underlying biochemical changes associated with endometriosis and uterine fibroids such as oxidative stress, angiogenesis, and matrix degradation...
August 21, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28812281/preclinical-development-of-an-automated-injection-device-for-intradermal-delivery-of-a-cell-based-therapy
#8
Giulia Leoni, Alex Lyness, Patrick Ginty, Rindi Schutte, Gopalan Pillai, Gayatri Sharma, Paul Kemp, Natalie Mount, Michaela Sharpe
Current methods for intradermal delivery of therapeutic products in clinical use include manual injection via the Mantoux technique and the use of injection devices, primarily developed for the delivery of vaccines and small molecules. A novel automated injection device is presented specifically designed for accurate delivery of multiple doses of product through a number of adjustable injection parameters, including injection depth, dose volume and needle insertion speed. The device was originally conceived for the delivery of a cell-based therapy to patients with skin wounds caused by epidermolysis bullosa...
August 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28812250/miv-150-and-zinc-acetate-combination-provides-potent-and-broad-activity-against-hiv-1
#9
Olga Mizenina, Mayla Hsu, Ninochka Jean-Pierre, Meropi Aravantinou, Keith Levendosky, Gabriela Paglini, Thomas M Zydowsky, Melissa Robbiani, José A Fernández-Romero
We previously showed that the combination of the non-nucleoside reverse transcriptase inhibitor (NNRTI) MIV-150 with zinc acetate (ZA) formulated in a carrageenan (CG; MZC) gel provided macaques significant protection against vaginal simian-human immunodeficiency virus-RT (SHIV-RT) challenge, better than either MIV-150/CG or ZA/CG. The MZC gel was shown to be safe in a phase 1 clinical trial. Herein, we used in vitro approaches to study the antiviral properties of ZA and the MIV-150/ZA combination, compared to other NNRTIs...
August 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28812225/enhancement-of-ocular-efficacy-of-aceclofenac-using-biodegradable-plga-nanoparticles-formulation-and-characterization
#10
Rajesh Katara, Sameer Sachdeva, Dipak K Majumdar
In the present study, an effort was made to design poly (D, L-lactide-co-glycolide) acid nanoparticles of aceclofenac by direct precipitation method. The nanoparticles were found to have adequate particle size range for ocular administration of 162.6 to 244.13 nm with nearly spherical shape and with zeta potential of - 21.5 to - 25.5 mV. Drug entrapment efficiency of nanoparticle formulations ranged from 42.9 to 92.68%. Differential scanning calorimetric (DSC) and powder X-ray diffraction (PXRD) studies depicted that the drug incorporated in nanoparticles was found to be in amorphous state...
August 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28801835/fabrication-of-acyclovir-loaded-flexible-membrane-vesicles-fmvs-evidence-of-preclinical-efficacy-of-antiviral-activity-in-murine-model-of-cutaneous-hsv-1-infection
#11
Gajanand Sharma, Kanika Thakur, Arvind Setia, Basant Amarji, Mini P Singh, Kaisar Raza, Om Prakash Katare
The present investigation focuses on the development and evaluation of acyclovir-loaded flexible membrane vesicles (ACY-FMVs) and evaluates their targeting potential to localize the drug into skin layers. The drug-loaded FMVs were prepared by thin-film hydration method and characterized for various attributes including micromeritics, entrapment efficiency, vesicle shape, size, and degree of deformability. The values of particle size and zeta potential of the developed carrier system were found to be 453.7 nm and - 11...
August 11, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28799125/non-polymer-drug-eluting-coronary-stents
#12
REVIEW
Nagavendra Kommineni, Raju Saka, Wahid Khan, Abraham J Domb
Cardiovascular complications are leading causes of most fatalities. Coronary artery disease and surgical failures contribute to the death of the majority of patients. Advanced research in the field of medical devices like stents has efficiently resolved these problems. Clinically, drug-eluting stents have proven their efficacy and safety compared to bare metal stents, which have problems of in-stent restenosis. However, drug-loaded stents coated with polymers have shown adverse effects related to the stability and deterioration of the polymer coating over time...
August 10, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28776220/nanostructured-lipid-carriers-to-enhance-transdermal-delivery-and-efficacy-of-diclofenac
#13
Chien Ngoc Nguyen, Thi Thuy Trang Nguyen, Hanh Thuy Nguyen, Tuan Hiep Tran
Lipid carrier-mediated transdermal drug delivery offers several advantages because it is non-irritating and non-toxic, provides effective control of drug release, and forms an adhesive film that hydrates the outer skin layers. However, to penetrate the deeper skin layers, these formulations need to overcome several barriers in the stratum corneum. This study evaluates factors influencing particle size and drug-loading capacity, which play a key role in drug permeation and efficacy. Diclofenac sodium was chosen as the model drug...
August 3, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28755158/optimizing-endothelial-cell-functionalization-for-cell-therapy-of-vascular-proliferative-disease-using-a-direct-contact-co-culture-system
#14
Mark R Battig, Ilia Fishbein, Robert J Levy, Ivan S Alferiev, David Guerrero, Michael Chorny
Increased susceptibility to thrombosis, neoatherosclerosis, and restenosis due to incomplete regrowth of the protective endothelial layer remains a critical limitation of the interventional strategies currently used clinically to relieve atherosclerotic obstruction. Rapid recovery of endothelium holds promise for both preventing the thrombotic events and reducing post-angioplasty restenosis, providing the rationale for developing cell delivery strategies for accelerating arterial reendothelialization. The successful translation of experimental cell therapies into clinically viable treatment modalities for restoring vascular endothelium critically depends on identifying strategies for enhancing the functionality of endothelial cells (EC) derived from high cardiovascular risk patients, the target group for the majority of angioplasty procedures...
July 28, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28752299/silica-microparticles-for-sustained-zero-order-release-of-an-anti-cd40l-antibody
#15
Puneet Tyagi, Mika Koskinen, Jari Mikkola, Lasse Leino, Alexander Schwarz
Silica microparticle hydrogel depot (HG) formulation was prepared using spray drying of silica-based sol-gels for the sustained delivery of MR1 antibody which binds to CD40 ligand (CD40L). The formulation was tested in vitro for antibody release, surface morphology, particle size, rheology, and injectability. In vivo pharmacokinetic evaluation was performed for the microparticle formulation and free MR1 antibody in BALB/c female mice. Serum samples up to day 62 were assessed using an enzyme-linked immunosorbent assay...
July 27, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28744782/storage-of-nitroglycerin-ntg-admixed-with-hboc-201-for-30%C3%A2-days-in-polyolefin-plastic-bags-a-pilot-study
#16
Savita Nigam, Richard McCarron, Francoise Arnaud
Hemorrhaged animals have benefited from resuscitation with the hemoglobin-based oxygen carrier (HBOC-201). Co-infusion of nitric oxide (NO) via separate intravascular lines is effective in attenuating HBOC-induced elevation of blood pressure. We tested whether nitroglycerin (NTG) and HBOC-201 can be packaged together as a single drug for resuscitation. Since NTG binds easily to plastics such as polyvinylchloride, we assessed the stability of this combination in oxygen barrier double-layer ethylene-vinyl alcohol/polyolefin bags over a 30-day period...
July 25, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28741113/approaches-to-prevent-bleeding-associated-with-anticoagulants-current-status-and-recent-developments
#17
REVIEW
Manu Thomas Kalathottukaren, Charles A Haynes, Jayachandran N Kizhakkedathu
Anticoagulants are widely used for the prophylaxis and treatment of cardiovascular disorders and to prevent blood clotting during surgeries. However, the major limitation associated with anticoagulant therapy is bleeding; all the current anticoagulants do have a bleeding risk. The propensity to bleed is much higher among the elderly population and patients with renal insufficiency. Therefore, there is an utmost and urgent clinical need for a highly efficient, nontoxic antidote with excellent anticoagulant reversal activity...
July 24, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28707265/editorial
#18
EDITORIAL
Michael R Doschak, Christine Allen, Emmanuel Ho
No abstract text is available yet for this article.
July 13, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28707264/evaluation-of-propylene-glycol-nanoliposomes-containing-curcumin-on-burn-wound-model-in-rat-biocompatibility-wound-healing-and-anti-bacterial-effects
#19
Nooshin Kianvash, Abbas Bahador, Maryam Pourhajibagher, Homanaz Ghafari, Vahid Nikoui, Sayed Mehdi Rezayat, Ahmad Reza Dehpour, Alireza Partoazar
Curcumin is an effective wound healing agent in burn therapy, but due to its low bioavailability, it is required to be formulated for topical therapy. Liposomal nanocarriers are developed as stable and efficient dermal delivery systems. In this study, we prepared curcumin-propylene glycol liposomes (Cur-PgL) to treat animals subjected to second degree burns. The characterization tests confirmed the production of monodisperse nanoliposomes of average size of about 145 nm with high entrapment efficiency percentage and a sustained release behavior...
July 13, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28707263/delivery-of-viral-vectors-for-gene-therapy-in-intimal-hyperplasia-and-restenosis-in-atherosclerotic-swine
#20
REVIEW
Sannette Hall, Devendra K Agrawal
Cardiovascular diseases including atherosclerosis are a major financial and health burden globally. Inflammation associated with atherosclerosis results in the development of plaques that can rupture causing thrombosis, stroke, or death. The most widely used treatment for the removal of atherosclerotic plaques is percutaneous transluminal coronary angioplasty (PTCA) with or without stenting. Although this is a safer and minimally invasive method, restenosis and intimal hyperplasia after interventional procedure remains a major hurdle and more refined approaches are needed...
July 13, 2017: Drug Delivery and Translational Research
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