keyword
MENU ▼
Read by QxMD icon Read
search

Local drug delivery

keyword
https://www.readbyqxmd.com/read/27914995/transdermal-skin-patch-based-on-reduced-graphene-oxide-a-new-approach-for-photothermal-triggered-permeation-of-ondansetron-across-porcine-skin
#1
Florina Teodorescu, Gurvan Quéniat, Catherine Foulon, Marie Lecoeur, Alexandre Barras, Samia Boulahneche, Mohmaed Salah Medjram, Thomas Hubert, Amar Abderrahmani, Rabah Boukherroub, Sabine Szunerits
The development of a skin-mounted patch capable of controlled transcutaneous delivery of therapeutics through thermal activation provides a unique solution for the controlled release of active principles over long-term periods. Here, we report on a flexible transdermal patch for photothermal triggered release of ondansetron (ODS), a commonly used drug for the treatment of chemotherapy-induced nausea and vomiting and used as model compound here. To achieve this, a dispersion of ODS-loaded reduced graphene oxide (rGO-ODS) nanosheets were deposited onto Kapton to produce a flexible polyimide-based patch...
November 30, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27914270/surface-mediated-transfection-of-a-pdna-vector-encoding-short-hairpin-rna-to-downregulate-tgf-%C3%AE-1-expression-for-the-prevention-of-in-stent-restenosis
#2
He Zhang, Ke-Feng Ren, Hao Chang, Jin-Lei Wang, Jian Ji
In-stent restenosis is one of the most serious modes of failure of cardiovascular stent implant. Although drug-eluting stents have been proven to reduce in-stent restenosis, the nonspecific inhibitory effects of anti-proliferative drugs, such as rapamycin, result in delayed re-endothelialization and fatal late stent thrombosis. Although many studies have focused on promoting rapid re-endothelialization, a feasible method of reducing excessive extracellular matrix (ECM) production and cell proliferation might provide a promising way to efficiently inhibit the restenosis in vivo...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27913307/urothelium-adherent-ion-triggered-liposome-in-gel-system-as-a-platform-for-intravesical-drug-delivery
#3
Shruti GuhaSarkar, Prachi More, Rinti Banerjee
Instillations of therapeutic agents into the urinary bladder have limited efficacy due to drug washout and inadequate attachment to and penetration into the bladder wall. Instilled nanoparticles alone have low stability and high susceptibility to washout, while gel-based systems are difficult to administer and retain. To overcome disadvantages of current technologies, a biodegradable, in situ-gelling liposome-in-gel (LP-Gel) system was developed for instillation into the bladder, composed of nano-sized, fluidizing liposomes incorporated into a "smart" biopolymeric, urine-triggered hydrogel...
November 29, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27913240/activity-of-vancomycin-release-from-bioinspired-coatings-of-hydroxyapatite-or-tio2-nanotubes
#4
Daniela Ionita, Daniela Bajenaru-Georgescu, Georgeta Totea, Anca Mazare, Patrik Schmuki, Ioana Demetrescu
Herein we investigate the efficiency of various biomimetic coatings for localized drug delivery, using vancomycin as key therapeutic drug, which is a widely used antibiotic for the treatment of strong infections caused by positive Gram bacteria. We evaluate classical hydroxyapatite and biomimetic hydroxyapatite-collagen coatings obtained by electrochemical deposition as well as TiO2 nanotubes arrays obtained by electrochemical anodization. Surface morphology, compositional and structural data confirm the incorporation of vancomycin into the layers and drug release profiles for vancomycin evaluate their release ability...
November 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27911878/y-box-binding-protein-1-promotes-hepatocellular-carcinomainitiating-cell-progression-and-tumorigenesis-via-wnt-%C3%AE-catenin-pathway
#5
Hsiao-Mei Chao, Hong-Xuan Huang, Po-Hsiang Chang, Kuo-Chang Tseng, Atsushi Miyajima, Edward Chern
Y-box binding protein-1 (YB-1) is a pleiotropic molecule that binds DNA to regulate genes on a transcriptional level in the nucleus and binds RNA to modulate gene translation in the cytoplasm. In our previous studies, YB-1 was also characterized as a fetal hepatic protein that regulates the maturation of hepatocytes and is upregulated during liver regeneration. Moreover, YB-1 has been shown to be expressed in human hepatocellular carcinoma (HCC). However, the role of YB-1 in HCC remains unclear. Here, we aimed to characterize the role of YB-1 in HCC...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900374/spatially-resolved-microfluidic-stimulation-of-lymphoid-tissue-ex-vivo
#6
Ashley E Ross, Maura C Belanger, Jacob F Woodroof, Rebecca R Pompano
The lymph node is a structurally complex organ of the immune system, whose dynamic cellular arrangements are thought to control much of human health. Currently, no methods exist to precisely stimulate substructures within the lymph node or analyze local stimulus-response behaviors, making it difficult to rationally design therapies for inflammatory disease. Here we describe a novel integration of live lymph node slices with a microfluidic system for local stimulation. Slices maintained the cellular organization of the lymph node while making its core experimentally accessible...
November 30, 2016: Analyst
https://www.readbyqxmd.com/read/27898700/sbg1-is-a-novel-regulator-for-the-localization-of-the-%C3%AE-glucan-synthase-bgs1-in-fission-yeast
#7
Reshma Davidson, Josef A Pontasch, Jian-Qiu Wu
Glucan synthases synthesize glucans, complex polysaccharides that are the major components in fungal cell walls and division septa. Studying regulation of glucan synthases is important as they are essential for fungal cell survival and thus popular targets for anti-fungal drugs. Linear 1,3-β-glucan is the main component of primary septum and is synthesized by the conserved β-glucan synthase Bgs1 in fission yeast cytokinesis. It is known that Rho1 GTPase regulates Bgs1 catalytic activity and the F-BAR protein Cdc15 plays a role in Bgs1 delivery to the plasma membrane...
2016: PloS One
https://www.readbyqxmd.com/read/27895468/increased-localized-delivery-of-piroxicam-by-cationic-nanoparticles-after-intra-articular-injection
#8
Sung Rae Kim, Myoung Jin Ho, Sang Hyun Kim, Ha Ra Cho, Han Sol Kim, Yong Seok Choi, Young Wook Choi, Myung Joo Kang
Piroxicam (PRX), a potent nonsteroidal anti-inflammatory drug, is prescribed to relieve postoperative and/or chronic joint pain. However, its oral administration often results in serious gastrointestinal adverse effects including duodenal ulceration. Thus, a novel cationic nanoparticle (NP) was explored to minimize the systemic exposure and increase the retention time of PRX in the joint after intra-articular (IA) injection, by forming micrometer-sized electrostatic clusters with endogenous hyaluronic acid (HA) in the synovial cavity...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27894964/approach-to-osteomyelitis-treatment-with-antibiotic-loaded-pmma
#9
REVIEW
Wentao Zhang, Guangyu Lei, Yang Liu, Wei Wang, Tao Song, Jinzhu Fan
BACKGROUND: To reduce the incidence of osteomyelitis infection, local antibiotic impregnated delivery systems are commonly used as a promising and effective approach to deliver high antibiotic concentrations at the infection site. OBJECTIVE: The objective of this review was to provide a literature review regarding approach to osteomyelitis treatment with antibiotic loaded PMMA. STUDY DESIGN: Literature study regarding osteomyelitis treatment with antibiotic loaded carriers using key terms Antibiotic, osteomyelitis, biodegradable PMMA through published articles...
November 26, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27892656/cytochrome-p450-bioconjugate-as-a-nanovehicle-for-improved-chemotherapy-treatment
#10
Katrin Quester, Karla Juarez-Moreno, Isamel Secundino, Yvonne Roseinstein, Karla P Alejo, Alejandro Huerta-Saquero, Rafael Vazquez-Duhalt
Cancer is still a growing public health problem, especially breast cancer that is one of the most important cancers in women. Chemotherapy, even though a successful treatment, is accompanied by severe side effects. Moreover, most of the drugs used for chemotherapy are administered as prodrugs and need to be transformed to the active form by cytochromes P450 (CYPs). In addition, increasing numbers of cancer tissues show lower CYP activity than the surrounding healthy tissues in which prodrugs are preferentially activated causing cytotoxicity...
November 28, 2016: Macromolecular Bioscience
https://www.readbyqxmd.com/read/27890855/linker-stability-influences-the-anti-tumor-activity-of-acetazolamide-drug-conjugates-for-the-therapy-of-renal-cell-carcinoma
#11
Samuele Cazzamalli, Alberto Dal Corso, Dario Neri
Small molecule-drug conjugates (SMDCs) are increasingly being considered as an alternative to antibody-drug conjugates (ADCs) for the selective delivery of anticancer agents to the tumor site, sparing normal tissues. Carbonic anhydrase IX (CAIX) is a membrane-bound enzyme, which is over-expressed in the majority of renal cell carcinomas and which can be efficiently targeted in vivo, using charged derivatives of acetazolamide, a small heteroaromatic sulfonamide. Here, we show that SMDC products, obtained by the coupling of acetazolamide with monomethyl auristatin E (MMAE) using dipeptide linkers, display a potent anti-tumoral activity in mice bearing xenografted SKRC-52 renal cell carcinomas...
November 24, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27889415/controlled-extended-octenidine-release-from-a-bacterial-nanocellulose-poloxamer-hybrid-system
#12
Y Alkhatib, M Dewaldt, S Moritz, R Nitzsche, D Kralisch, D Fischer
Although bacterial nanocellulose (BNC) has been widely investigated in the last 10years as drug delivery system, up to now no long-term controlled release of drugs could be realized. Therefore, the aim of the present work was the development of a BNC-based drug delivery system that provides prolonged retention time for the antiseptic octenidine up to one week with improved mechanical and antimicrobial properties as well as a high biocompatibility. BNC was modified by incorporation of differently concentrated Poloxamers 338 and 407 as micelles and gels that were extensively investigated regarding size, surface charge, and dynamic viscosity...
November 24, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27888888/laser-assisted-delivery-to-treat-facial-scars
#13
REVIEW
Jill S Waibel, Ashley Rudnick
Treatment of facial scars is a multispecialty endeavor for optimal patient recovery. One new innovation helping in facial scar treatments are lasers. Fractional laser predictably (tunable) disrupts the barrier of the skin creating deep channels that allow the delivery of drug and cellular materials; this is called laser-assisted drug delivery (LAD). Without exception thus far, LAD has been found to enhance the local uptake of any drug or substance applied to the skin. These zones may be used postoperatively to deliver drugs and other substances to create an enhanced scar therapeutic response to drug or substance applied to the skin...
February 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27886461/biomaterial-based-implantable-devices-for-cancer-therapy
#14
Sue Anne Chew, Serena Danti
This review article focuses on the current local therapies mediated by implanted macroscaled biomaterials available or proposed for fighting cancer and also highlights the upcoming research in this field. Several authoritative review articles have collected and discussed the state-of-the-art as well as the advancements in using biomaterial-based micro- and nano-particle systems for drug delivery in cancer therapy. On the other hand, implantable biomaterial devices are emerging as highly versatile therapeutic platforms, which deserve an increased attention by the healthcare scientific community, as they are able to offer innovative, more effective and creative strategies against tumors...
November 25, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27884774/esponsive-multifunctional-drug-delivery-nanoparticles-for-elastic-matrix-regenerative-repair
#15
Balakrishnan Sivaraman, Ganesh Swaminathan, Lee Moore, Jonathan Fox, Dhruv Seshadri, Shataakshi Dahal, Ivan Stoilov, Maciej Zborowski, Robert Mecham, Anand Ramamurthi
: Arresting or regressing growth of abdominal aortic aneurysms (AAAs), localized expansions of the abdominal aorta are contingent on inhibiting chronically overexpressed matrix metalloproteases (MMPs)-2 and -9 that disrupt elastic matrix within the aortic wall, concurrent with providing a stimulus to augmenting inherently poor auto-regeneration of these matrix structures. In a recent study we demonstrated that localized, controlled and sustained delivery of doxycycline (DOX; a tetracycline-based antibiotic) from poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs), enhances elastic matrix deposition and MMP-inhibition at a fraction of the therapeutically effective oral dose...
November 21, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27884712/solid-lipid-nanoparticles-for-sustained-pulmonary-delivery-of-yuxingcao-essential-oil-preparation-characterization-and-in-vivo-evaluation
#16
Yun Zhao, Yue-Xing Chang, Xiao Hu, Chun-Yu Liu, Li-Hui Quan, Yong-Hong Liao
The objective of this study was to prepare solid lipid nanoparticles (SLNs) for sustained pulmonary delivery of Yuxingcao essential oil (YEO). Three YEO loaded SLNs (SLN-200, SLN-400 and SLN-800) with different particle size were prepared and separated following a high-shear homogenization technique using Compritol 888 ATO as lipid and polyvinyl alcohol as an emulsifier. The particle size, zeta potential, drug encapsulation efficiency and drug loading of the SLNs were determined to be between 171 and 812nm, -17...
November 21, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27877038/sulfonate-modified-phenylboronic-acid-rich-nanoparticles-as-a-novel-mucoadhesive-drug-delivery-system-for-vaginal-administration-of-protein-therapeutics-improved-stability-mucin-dependent-release-and-effective-intravaginal-placement
#17
ChunYan Li, ZhiGang Huang, ZheShuo Liu, LiQian Ci, ZhePeng Liu, Yu Liu, XueYing Yan, WeiYue Lu
Effective interaction between mucoadhesive drug delivery systems and mucin is the basis of effective local placement of drugs to play its therapeutic role after mucosal administration including vaginal use, which especially requires prolonged drug presence for the treatment of gynecological infectious diseases. Our previous report on phenylboronic acid-rich nanoparticles (PBNPs) demonstrated their strong interaction with mucin and mucin-sensitive release profiles of the model protein therapeutics interferon (IFN) in vitro, but their poor stability and obvious tendency to aggregate over time severely limited future application...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27876876/fabrication-of-functional-hollow-microspheres-constructed-from-mof-shells-promising-drug-delivery-systems-with-high-loading-capacity-and-targeted-transport
#18
Xuechuan Gao, Xiao Hai, Huricha Baigude, Weihua Guan, Zhiliang Liu
An advanced multifunctional, hollow metal-organic framework (MOF) drug delivery system with a high drug loading level and targeted delivery was designed and fabricated for the first time and applied to inhibit tumour cell growth. This hollow MOF targeting drug delivery system was prepared via a simple post-synthetic surface modification procedure, starting from hollow ZIF-8 successfully obtained for the first time via a mild phase transformation under solvothermal conditions. As a result, the hollow ZIF-8 exhibits a higher loading capacity for the model anticancer drug 5-fluorouracil (5-FU)...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27871824/cocaine-self-administration-extinction-training-and-drug-induced-relapse-change-metabotropic-glutamate-mglu5-receptors-expression-evidence-from-radioligand-binding-and-immunohistochemistry-assays
#19
Lucyna Pomierny-Chamiolo, Joanna Miszkiel, Malgorzata Frankowska, Beata Bystrowska, Malgorzata Filip
Several behavioral findings highlight the importanceof glutamatergic transmission and its metabotropic receptor type 5 (mGlu5) in the controlling of cocaine reward and seeking behaviors. The molecular or neurochemical nature of such interactions is not well recognized, so in the present paper we determine if cocaine self-administration and extinction/reinstatement models with the yoked triad control procedure alter mGlu5 receptor density in rats. [³H]MPEP was used to evaluate mGlu5 receptors density and affinity in selected brain structures, while immunofluorescence analysis was used to detect changes in mGlu5 receptors' brain location...
November 18, 2016: Brain Research
https://www.readbyqxmd.com/read/27867376/the-exosporium-of-bacillus-megaterium-qm-b1551-is-permeable-to-the-red-fluorescence-protein-of-the-coral-discosoma-sp
#20
Mariamichela Lanzilli, Giuliana Donadio, Roberta Addevico, Anella Saggese, Giuseppina Cangiano, Loredana Baccigalupi, Graham Christie, Ezio Ricca, Rachele Isticato
Bacterial spores spontaneously interact and tightly bind heterologous proteins. A variety of antigens and enzymes have been efficiently displayed on spores of Bacillus subtilis, the model system for spore formers. Adsorption on B. subtilis spores has then been proposed as a non-recombinant approach for the development of mucosal vaccine/drug delivery vehicles, biocatalysts, bioremediation, and diagnostic tools. We used spores of B. megaterium QM B1551 to evaluate their efficiency as an adsorption platform. Spores of B...
2016: Frontiers in Microbiology
keyword
keyword
42348
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"