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Drug Delivery and Translational Research

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https://www.readbyqxmd.com/read/30652257/nano-engineered-lipid-polymer-hybrid-nanoparticles-of-fusidic-acid-an-investigative-study-on-dermatokinetics-profile-and-mrsa-infected-burn-wound-model
#1
Kanika Thakur, Gajanand Sharma, Bhupinder Singh, Sanjay Chhibber, Om Prakash Katare
Staphylococcus aureus (SA) and methicillin-resistant Staphylococcus aureus (MRSA) have been a major cause of morbidity in thermally injured patients. The skin barrier gets disrupted and loss of immunity further makes burn sites an easy target for bacterial colonization. In the current study, combined potential of lipid-polymer hybrid nanoparticles (LPHNs) with fusidic acid was explored as a promising strategy toward combating resistant bacteria in burn wound infection sites. The developed systems exhibited particle size (310...
January 16, 2019: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30632091/comparison-of-sublingual-vs-intramuscular-administration-of-vitamin-b12-for-the-treatment-of-patients-with-vitamin-b12-deficiency
#2
Merav Jacobson Bensky, Irit Ayalon-Dangur, Roi Ayalon-Dangur, Eviatar Naamany, Anat Gafter-Gvili, Gideon Koren, Shachaf Shiber
There are several methods to treat vitamin B12 deficiency (VB12d): intramuscular (IM), oral, sublingual (SL), and intranasal vitamin B12 (VB12) preparations. Large studies comparing the efficacy of SL vs. IM supplements are lacking. The aim of the present study was to compare the efficacy of SL versus the standard IM administration of VB12 in restoring B12 levels. This was a retrospective analysis of data from the computerized pharmacy records of Maccabi Health Service (MHS). Data were recorded for all patients older than 18 years of age who were prescribed VB12 during January 2014-December 2017...
January 10, 2019: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30610502/combined-chitosan-and-dan-shen-injection-for-long-term-tubal-patency-in-fallopian-tube-recanalization-for-infertility
#3
Chen Huang, Xueping He, Wenfeng Luo, Hanwei Chen, Yi Huang
To prospectively study the efficacy of different anti-adhesion agents for the prevention of tubal obstruction after recanalization, this trial was approved by our hospital ethics committee. Four hundred patients with fallopian tube obstruction were randomly assigned to four groups. The control group underwent recanalization alone, whereas the other groups were injected with chitosan, Dan-shen, or combined chitosan and Dan-shen after recanalization. The tubal patency rate in all four groups was recorded after 12 day, 3 months, and 12 months...
January 4, 2019: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30569349/easy-formulation-of-liposomal-doxorubicin-modified-with-a-bombesin-peptide-analogue-for-selective-targeting-of-grp-receptors-overexpressed-by-cancer-cells
#4
Antonella Accardo, Silvia Mannucci, Elena Nicolato, Federica Vurro, Carlo Diaferia, Pietro Bontempi, Pasquina Marzola, Giancarlo Morelli
The article concerns the obtainment of liposomal doxorubicin (Dox) in which liposomes are externally modified with a targeting peptide able to drive the formulation in a selective way on membrane receptors overexpressed in tumors. We developed a kit composed by three different vials: (A) a vial containing a sterile, translucent, red dispersion of the liposomal doxorubicin drug (Doxil®), (B) a vial filled with a lyophilized powder of a modified phospholipid with a reactive function (DSPE-Peg-maleimide), and (C) a vial containing a 1-9 bombesin peptide analogue (Cys-BN-AA1) chemically modified to react in stoichiometric ratio respect to DSPE-Peg-maleimide...
December 19, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30547385/safety-and-efficacy-of-dermal-fibroblast-conditioned-medium-dfcm-fortified-collagen-hydrogel-as-acellular-3d-skin-patch
#5
Manira Maarof, Mohd Fauzi Mh Busra, Yogeswaran Lokanathan, Ruszymah Bt Hj Idrus, Nor Fadilah Rajab, Shiplu Roy Chowdhury
Skin substitutes are one of the main treatments for skin loss, and a skin substitute that is readily available would be the best treatment option. However, most cell-based skin substitutes require long production times, and therefore, patients endure long waiting times. The proteins secreted from the cells and tissues play vital roles in promoting wound healing. Thus, we aimed to develop an acellular three-dimensional (3D) skin patch with dermal fibroblast conditioned medium (DFCM) and collagen hydrogel for immediate treatment of skin loss...
December 13, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30542944/development-of-a-thermostable-microneedle-patch-for-polio-vaccination
#6
Chandana Kolluru, Yasmine Gomaa, Mark R Prausnitz
The aim of this study was to develop a dissolving microneedle (MN) patch for administration of inactivated polio vaccine (IPV) with improved thermal stability when compared with conventional liquid IPV. Excipient screening showed that a combination of maltodextrin and D-sorbitol in histidine buffer best preserved IPV activity during MN patch fabrication and storage. As determined by D-antigen ELISA, all three IPV serotypes maintained > 70% activity after 2 months and > 50% activity after 1-year storage at 5 °C or 25 °C with desiccant...
December 12, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30519937/ph-responsive-calcium-alginate-hydrogel-laden-with-protamine-nanoparticles-and-hyaluronan-oligosaccharide-promotes-diabetic-wound-healing-by-enhancing-angiogenesis-and-antibacterial-activity
#7
Tao Wang, Yan Zheng, Yijie Shi, Liang Zhao
Diabetic wounds as chronic wounds represent a severe, persistent complication of diabetes and, in the most extreme cases, can lead to amputation. Two critical and unfavorable factors affecting diabetic wound healing are sustained bacterial-induced chronic inflammation and disrupted vascularization. In this paper, we presented a novel, pH-responsive calcium alginate hydrogel laden with protamine nanoparticles and hyaluronan oligosaccharides, and explored its potential for accelerating diabetic wound healing...
December 5, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30511249/an-injectable-alginate-extra-cellular-matrix-ecm-hydrogel-towards-acellular-treatment-of-heart-failure
#8
Clive J Curley, Eimear B Dolan, Matthias Otten, Svenja Hinderer, Garry P Duffy, Bruce P Murphy
As treatments for myocardial infarction (MI) continue to improve, the population of people suffering from heart failure (HF) is rising significantly. Novel treatment strategies aimed at achieving long-term functional stabilisation and improvement in heart function post MI include the delivery of biomaterial hydrogels and myocardial matrix-based therapies to the left ventricle wall. Individually alginate hydrogels and myocardial matrix-based therapies are at the most advanced stages of commercial/clinical development for this potential treatment option...
December 3, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30484258/pectin-encrusted-gold-nanocomposites-containing-phytic-acid-and-jacalin-1-2-dimethylhydrazine-induced-colon-carcinogenesis-in-wistar-rats-pi3k-akt-cox-2-and-serum-metabolomics-as-potential-targets
#9
Malti Arya, Pooja Singh, Chandra B Tripathi, Poonam Parashar, Mahendra Singh, Jovita Kanoujia, Anupam Guleria, Gaurav Kaithwas, Krishna P Gupta, Shubhini A Saraf
Phytic acid (PA) has momentous chemotherapeutic potential. Due to the chelate formation and rapid elimination, it is not popular in cancer treatment. The present work was inquested to develop a surface-modified nanoformulation of PA which prevents its speedy elimination and maximizes chemotherapeutic action. Chloroauric acid was reduced with pectin to produce pectin-gold nanoparticles (PGNPs). PGNPs were incubated with PA and jacalin for drug loading and surface modifications, respectively, to form PA-loaded jacalin-pectin-gold nanoparticles (PA-J-PGNPs)...
November 27, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30484257/newly-synthesized-surfactants-for-surface-mannosylation-of-respirable-sln-assemblies-to-target-macrophages-in-tuberculosis-therapy
#10
Eleonora Maretti, Luca Costantino, Francesca Buttini, Cecilia Rustichelli, Eliana Leo, Eleonora Truzzi, Valentina Iannuccelli
The present study reports about new solid lipid nanoparticle assemblies (SLNas) loaded with rifampicin (RIF) surface-decorated with novel mannose derivatives, designed for anti-tuberculosis (TB) inhaled therapy by dry powder inhaler (DPI). Mannose is considered a relevant ligand to achieve active drug targeting being mannose receptors (MR) overexpressed on membranes of infected alveolar macrophages (AM), which are the preferred site of Mycobacterium tuberculosis. Surface decoration of SLNas was obtained by means of newly synthesized functionalizing compounds used as surfactants in the preparation of carriers...
November 27, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30484256/amphotericin-b-loaded-nanoparticles-for-local-treatment-of-cutaneous-leishmaniasis
#11
Aiman Abu Ammar, Abed Nasereddin, Suheir Ereqat, Mary Dan-Goor, Charles L Jaffe, Eyal Zussman, Ziad Abdeen
Cutaneous leishmaniasis (CL) is an infectious, parasitic disease caused by the protozoan Leishmania. Amphotericin B (AMB) is a macrolide polyene antibiotic presenting potent antifungal and antileishmanial activity, but due to poor water solubility at physiological pH, side effects, and toxicity, its therapeutic efficiency is limited. In the present study, poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) loaded with AMB were generated to reduce drug toxicity and facilitate localized delivery over a prolonged time...
November 27, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30465181/novel-metformin-containing-resin-promotes-odontogenic-differentiation-and-mineral-synthesis-of-dental-pulp-stem-cells
#12
Suping Wang, Yang Xia, Tao Ma, Michael D Weir, Ke Ren, Mark A Reynolds, Yan Shu, Lei Cheng, Abraham Schneider, Hockin H K Xu
This represents the first report on the development of metformin-containing dental resins. The objectives were to use the resin as a carrier to deliver metformin locally to stimulate dental cells for dental tissue regeneration and to investigate the effects on odontogenic differentiation of dental pulp stem cells (DPSCs) and mineral synthesis. Metformin was incorporated into a resin at 20% by mass as a model system. DPSC proliferation attaching on resins was evaluated. Dentin sialophosphoprotein (DSPP), dentin matrix phosphoprotein 1 (DMP-1), alkaline phosphatase (ALP), and runt-related transcription factor 2 (Runx2) genes expressions were measured...
November 21, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30430453/topical-delivery-of-3-5-4-trimethoxy-trans-stilbene-loaded-microemulsion-based-hydrogel-for-the-treatment-of-osteoarthritis-in-a-rabbit-model
#13
Xiong-Bin Hu, Rong-Rong Kang, Tian-Tian Tang, Yong-Jiang Li, Jun-Yong Wu, Jie-Min Wang, Xin-Yi Liu, Da-Xiong Xiang
The aim of this study was to develop a microemulsion-based hydrogel (MBH) formulation of 3,5,4'-trimethoxy-trans-stilbene (BTM) as topical delivery system for the treatment of osteoarthritis (OA). The pseudo-ternary phase diagrams were constructed to optimize the microemulsion (ME) formulation. The ME formulation containing 18.8% Cremopher EL35 (surfactant), 9.4% Transcutol HP (co-surfactant), 3.1% LABRAFIL M 1944 CS (oil), and 68.7% water was selected. The obtained BTM-loaded ME (BTM-ME) had a spherical morphology (17...
November 14, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30430452/macrophage-ghost-entrapped-amphotericin-b-a-novel-delivery-strategy-towards-experimental-visceral-leishmaniasis
#14
Prakash Kumar, Partha Pratim Bose
Leishmania donovani, an intracellular parasite, poses many challenges against attempted chemotherapy. After the resistance towards the first-line antileishmanial drug, amphotericin B has become the treatment of choice against visceral leishmaniasis, a fatal tropical disease. However, unfavorable toxicity profile, severe side effects, and prolonged parenteral administration limit its use. Lack of available specific delivery system also makes this drug unsafe for long-term use. In the current study, a "ghost cell" strategy based on macrophage membrane-derived nanovesicle has been introduced as a specific carriage for amphotericin B...
November 14, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30430451/albumin-nano-encapsulation-of-caffeic-acid-phenethyl-ester-and-piceatannol-potentiated-its-ability-to-modulate-hif-and-nf-kb-pathways-and-improves-therapeutic-outcome-in-experimental-colitis
#15
Murtaza M Tambuwala, Mohammed N Khan, Paul Thompson, Paul A McCarron
Hypoxia inducible factor and nuclear factor-kappa beta pathways have been proposed as therapeutic targets for several inflammatory diseases. Caffeic acid phenethyl ester (CAPE) and piceatannol (PIC) are natural anti-inflammatory compounds; however, poor bioavailability and limited understanding of biomolecular mechanistic limits its clinical use. The aims of this study are to enhance bioavailability and investigate their impact on nuclear p65 and HIF-1α for the first time in experimental colitis.Dextran sulphate sodium was used to induce colitis in mice and effect of either free CAPE/PIC or CAPE/PIC loaded albumin nanoparticles treatment was observed on disease development and levels of cellular p65 and HIF-1α...
November 14, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30426357/therapeutic-switching-of-sulpiride-an-anti-psychotic-and-prokinetic-drug-to-an-anti-colitic-drug-using-colon-specific-drug-delivery
#16
Dohoon Kim, Wooseong Kim, Seongkeun Jeong, Dayoon Kim, Jin-Wook Yoo, Yunjin Jung
To test whether sulpiride (SP), an anti-psychotic and prokinetic drug, shows beneficial effects on experimental murine colitis, a colon-targeted prodrug of SP, 5-(aminoethanoylsulfamoyl)-N-[(1-ethylpyrrolidin-2-yl)methyl]-2-methoxybenzamide (glycylsulpiride (GSP)), was synthesized and its colonic delivery and therapeutic activity against 2,4-dinitrobenzenesulfonic acid (DNBS)-induced rat colitis were assessed. Synthesis of GSP was verified by infrared and proton nuclear magnetic resonance spectroscopy. GSP was converted to SP when incubated with the cecal contents but not when incubated with the small intestinal contents...
November 13, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30421392/co-delivery-of-curcumin-and-doxorubicin-in-pegylated-liposomes-favored-the-antineoplastic-c26-murine-colon-carcinoma-microenvironment
#17
Alina Sesarman, Lucia Tefas, Bianca Sylvester, Emilia Licarete, Valentin Rauca, Lavinia Luput, Laura Patras, Sebastian Porav, Manuela Banciu, Alina Porfire
Our recent studies have demonstrated that the antitumor efficacy of doxorubicin (DOX), administered in long-circulating liposomes (LCL), could be considerably improved after its co-encapsulation with curcumin (CURC). Thus, the question addressed within this article is whether LCL-CURC-DOX can be exploited more efficiently than liposomal DOX for future colorectal cancer therapy. Therefore, we investigated the physicochemical and biological properties of LCL-CURC-DOX and the mechanisms of its antitumor activity in C26 murine colon carcinoma in vivo...
November 12, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30387049/evaluation-of-collagen-type-i-scaffolds-including-gelatin-collagen-microparticles-and-aloe-vera-in-a-model-of-full-thickness-skin-wound
#18
Liliana Gil-Cifuentes, Ronald A Jiménez, Marta R Fontanilla
Research on collagen type I scaffolds with Aloe vera is sparse. The aim of this work was to develop collagen type I scaffolds with gelatin-collagen microparticles and loaded with a dispersion of A. vera, to assess their performance as grafting material for healing of skin wounds. Scaffolds were evaluated in a Cavia porcellus model with full-thickness skin wound and compared with wounds healed by secondary intention (controls). Animals grafted with scaffolds without A. vera and their control wounds were also included in the study...
November 1, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30387048/domperidone-nanocrystals-with-boosted-oral-bioavailability-fabrication-evaluation-and-molecular-insight-into-the-polymer-domperidone-nanocrystal-interaction
#19
Stalielson Tatenda Ndlovu, Naseem Ullah, Shahzeb Khan, Pritika Ramharack, Mahmoud Soliman, Marcel de Matas, Muhammad Shahid, Muhammad Sohail, Muhammad Imran, Syed Wadood Ali Shah, Zahid Hussain
The aim of this study was to employ experimental and molecular modelling approaches to use molecular level interactions to rationalise the selection of suitable polymers for use in the production of stable domperidone (DOMP) nanocrystals with enhanced bioavailability. A low-energy antisolvent precipitation method was used for the preparation and screening of polymers for stable nanocrystals of DOMP. Ethyl cellulose was found to be very efficient in producing stable DOMP nanocrystals with particle size of 130 ± 3 nm...
November 1, 2018: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/30378014/effects-of-stability-of-pegylated-micelles-on-the-accelerated-blood-clearance-phenomenon
#20
Yuqing Su, Mengyang Liu, Yan Xiong, Junqiang Ding, Xinrong Liu, Yanzhi Song, Yihui Deng
Accelerated blood clearance (ABC) is a phenomenon where the blood clearance rate of the carrier system is substantially raised. It can be induced by repetitive injections of polyethylene glycol (PEG) (molecular weight 2000)-modified micelles (PM2000). To determine whether the PEG chain length and PEGylated micelle injection dose can have an effect on the ABC phenomenon, micelles were modified with PEGs of varying molecular weights; PEGs with molecular weights of 350, 550, 2000, 5000, 10,000, and 20,000 were used to generate the PEGylated micelles PM350, PM550, PM2000, PM10000, and PM20000, respectively...
October 30, 2018: Drug Delivery and Translational Research
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