Abstract:
:Recently, considerable interest has been focussed on the use of biodegradable polymers for specialized applications such as controlled release of drug formulations; meanwhile, microsphere drug delivery systems using various kinds of biodegradable polymers have been studied extensively during the past two decades. In the present investigation, it was aimed to prepare microsphere formulations of celecoxib using a natural polymer, chitosan as a carrier for intra-articular administration to extend the retention of the drug in the knee joint. Microsphere formulations were evaluated in vitro for particle size, entrapment efficiency, surface morphology and in vitro drug release. For in vivo studies, (99m)Technetium- labeled glutathione was used as a radiopharmaceutical to demonstrate arthritic lesions by gamma scintigraphy. Evaluation of arthritic lesions post therapy in rats showed a significant difference (P < 0.005) in the group treated with celecoxib solution compared to the group treated with celecoxib loaded chitosan microspheres.
journal_name
J Drug Targetjournal_title
Journal of drug targetingauthors
Thakkar H,Sharma RK,Mishra AK,Chuttani K,Murthy RSdoi
10.1080/10611860400010630keywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
549-57issue
9-10eissn
1061-186Xissn
1029-2330pii
QJ0WM6NV6JTKK87Rjournal_volume
12pub_type
杂志文章abstract::Acyclovir is an antiviral agent and it has been particularly used for the treatment of herpes simplex infections. The treatment of infection in the oral cavity is often difficult, because of insufficient drug concentration in saliva when acyclovir is administered via the oral route in conventional tablet form for syst...
journal_title:Journal of drug targeting
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doi:10.1080/10611860600566548
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abstract::Intravenous targeting of anticancer agents should improve both efficacy and therapeutic index. However, rational design of targeting constructs requires detailed definition of receptor targets and must take account of polarised tissue architecture that may restrict access to chosen receptors from the bloodstream. Bact...
journal_title:Journal of drug targeting
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abstract::Cancer is one of the most common diseases all over the world; many people suffer from diverse types of cancer. However, currently there is no exact cure or therapy developed for cancer. On the other hand, nanoparticles are defined as microscopic particles that have dimensions less than 100 nm and they are known for th...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
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abstract::Recent studies have shown that drugs that are normally unable to cross the blood-brain barrier (BBB) following intravenous injection can be transported across this barrier by binding to poly(butyl cyanoacrylate) nanoparticles and coating with polysorbate 80. However, the mechanism of this transport so far was not know...
journal_title:Journal of drug targeting
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abstract::Phage display technology has been widely used for developing tumor-targeting agents. Most of the efforts were directed towards identifying phage-displayed ligands against cancer-relevant purified targets and cancer cell lines. Whole cell screening procedures typically use a relatively large sample size and are not ide...
journal_title:Journal of drug targeting
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abstract::Local treatment of middle ear (ME) disease currently requires surgical penetration of the tympanic membrane (TM). We previously discovered 12-mer peptides that are actively transported across the intact TM, a process that could be used for non-invasive drug delivery into the ME. To optimise transport and provide furth...
journal_title:Journal of drug targeting
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doi:10.1080/1061186X.2017.1347791
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abstract::The objective of this study was to investigate the factors for enhancing the susceptibility of cancer cells to chemotherapeutic drug by ultrasound microbubbles. Ultrasound (US) combined with phospholipid-based microbubbles (MB) was used to enhance the susceptibility of colon cancer cell line SWD-620 to anticancer drug...
journal_title:Journal of drug targeting
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journal_title:Journal of drug targeting
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abstract::The adsorption behaviour of a tetrafunctional copolymer of poly (ethylene oxide)-poly (propylene oxide) ethylene diamine (commercially available as Poloxamine 908) and a diblock copolymer of poly (lactic acid)-poly (ethylene oxide) (PLA/PEG 2:5) onto a model colloidal drug carrier (156 nm sized polystyrene latex) is d...
journal_title:Journal of drug targeting
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doi:10.1080/10611860500246175
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abstract::An in vivo study has been performed in order to determine the influence of amphotericin B (AMB) molecular organization on the toxicity and activity of this drug in the treatment of experimental visceral leishmaniasis. Three formulations with similar composition but different drug molecular self-association in aqueous ...
journal_title:Journal of drug targeting
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doi:10.1080/10611860400006596
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abstract::Gene delivery systems face the problem not only of the route toward the cell and tissues in question, but also of the molecularly crowded environment of both the cytoplasm and the nucleus itself. One of the physical barriers in the cytoplasm for diffusing nanoparticles is an actin network. Here, we describe the findin...
journal_title:Journal of drug targeting
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doi:10.3109/1061186X.2010.521159
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abstract::Toxoplasmic encephalitis (TE) is the most common clinical manifestation of reactivated infection with Toxoplasma gondii in immunocompromised patients that is lethal if untreated. The combination of pyrimethamine plus sulfadiazine or clindamycin is the standard therapy for the treatment of TE, but these combinations ar...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611861003733995
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abstract::Targeting of anti-tumor drugs to the urinary bladder for the treatment of bladder carcinoma may be useful, since these agents generally have a low degree of urinary excretion and are highly toxic elsewhere in the body. The anti-tumor drug doxorubicin was coupled to the low-molecular weight protein lysozyme via the aci...
journal_title:Journal of drug targeting
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doi:10.1080/10611860290007568
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abstract::Biphenylylacetic acid (BPAA) was linked to the free hydroxyl group of 2,6-di-O-methyl-beta-Cyclodextrin (DM-beta-CyD) through an ester linkage to obtain the site specific release of the drug to the colon. The conjugate at 1:1 mole ratio was separated from the reaction mixture by semipreparative reverse-phase HPLC and ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860310001615965
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abstract::The objective of this study is to develop and evaluate gastroretentive particulate delivery systems using Riboflavin-5'-monophosphate sodium salt dihydrate (RF5'PNa) as model drug. Poly(acrylic acid)-cysteine and chitosan-4-thiobuthylamidine were evaluated and compared as anionic and cationic polymers for gastroretent...
journal_title:Journal of drug targeting
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doi:10.3109/10611860903483370
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abstract::The goal of this study was to develop a systemically non-toxic and stable circulation based passive targeting system for efficient anticancer treatment. Gelatin-doxorubicin (GD) and PEGylated gelatin-doxorubicin (PGD) nanoparticles were designed and their feasibilities as an anti-cancer drug were evaluated. The sizes ...
journal_title:Journal of drug targeting
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doi:10.1080/10611860600935701
更新日期:2006-12-01 00:00:00
abstract::Pathophysiological molecules in the extracellular environment offer excellent targets that can be exploited for designing drug targeting systems. Matrix metalloproteases (MMPs) are a family of extracellular proteolytic enzymes that are characterized by their overexpression or overactivity in several pathologies. Over ...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.1080/10611860600968967
更新日期:2007-01-01 00:00:00
abstract::Supramolecules since ages have been characterised as self-associating systems emanating the properties directly related to the mode of molecular association. Similar to supramolecules, liquid crystals may also be considered as an associated system. The liquid crystals are defined as the state of matter with the charac...
journal_title:Journal of drug targeting
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doi:10.3109/10611869908996839
更新日期:1999-01-01 00:00:00
abstract::Present work describes a novel composition for encapsulating TRPsiRNA (TRPV1-targeting siRNA) within lipid-matrix (4:1::glyceryl behnate:stearic acid) of SLNs, using suitably modified cold high-pressure homogenisation technique. Optimisation of the method and composition conducted using calf-thymus DNA (ctDNA), to avo...
journal_title:Journal of drug targeting
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abstract:BACKGROUND:The polycationic nanopeptide RKKRRQRRR is a fragment of HIV-Tat protein known to be a transfection enhancer. Such factors control the transfection efficiency of plasmid DNA complexed with tat peptide. However, their actions are poorly understood. METHODS AND RESULTS:Several cell lines and primary cells were...
journal_title:Journal of drug targeting
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abstract::To design a novel cytospecific photosensitizer for photodynamic antitumor therapy, a fullerene (C(60)) was chemically modified with pullulan which is a water-soluble polysaccharide with a high affinity for asialoglycoprotein receptors. Ethylene diamine was introduced to the terminal aldehyde groups of pullulan by the ...
journal_title:Journal of drug targeting
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abstract::This study assesses a protective effect of a mitochondria-targeted antioxidant SkQT1 (a mixture of 10-(6'-toluquinonyl) decyltriphenylphosphonium and 10-(5'-toluquinonyl) decyltriphenylphosphonium in proportion of 1.4:1), using an open focal trauma model of the rat brain sensorimotor cortex and a model of amyloid-beta...
journal_title:Journal of drug targeting
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abstract::Cell-penetrating peptides (CPPs) are efficient vehicles to transport bioactive molecules into the cells. Despite numerous studies the exact mechanism by which CPPs facilitate delivery of cargo to its intracellular target is still debated. The current work presents methods that can be used for tracking CPP/pDNA complex...
journal_title:Journal of drug targeting
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更新日期:2016-01-01 00:00:00
abstract::Radiolabelled poly(methylmethacrylate) (PMMA) nanoparticles were coated with rat serum albumin (RSA), serum and inactivated serum, to examine the influence of these blood components on the body distribution of a model colloidal drug carrier. The particles were incubated overnight at 37 degrees C either in a 1% solutio...
journal_title:Journal of drug targeting
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doi:10.3109/10611869308998760
更新日期:1993-01-01 00:00:00
abstract::The ultimate goal of bacterial based cancer therapy is to achieve non-toxic penetration and colonisation of the tumour microenvironment. To overcome this efficacy-limiting toxicity of anticancer immunotherapy, we have tested a therapy comprised of systemic delivery of a vascular disrupting agent to induce intratumoral...
journal_title:Journal of drug targeting
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更新日期:2020-12-21 00:00:00
abstract::We have previously reported that the transfection efficiency of laminin-derived AG73-peptide labeled polyethyleneglycol-modified liposomes (AG73-PEG liposomes) was enhanced by echo-contrast gas entrapping PEG liposomes (Bubble liposomes, BLs) and ultrasound (US) exposure by improving endosomal escape. However, it has ...
journal_title:Journal of drug targeting
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doi:10.3109/1061186X.2012.660162
更新日期:2012-05-01 00:00:00
abstract::The present investigation was aimed at targeting indinavir, a protease inhibitor to cells of mononuclear phagocyte system (MPS) via mannosylated liposomes. β-d-1-thiomannopyranoside residues were covalently coupled with dimyristoyl phosphatidylethanolamine (DMPE) to generate mannosylated-DMPE (Man-DMPE) conjugate whic...
journal_title:Journal of drug targeting
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更新日期:2011-05-01 00:00:00
abstract::Archaeal ether glycerolipid vesicles (archaeosomes) efficiently deliver exogenous antigen for induction of humoral and cell-mediated immunity. Because induction of CD8 cytotoxic T cells is critical for protective vaccination against tumors, we compared the ability of various archaeosome lipid compositions to evoke a s...
journal_title:Journal of drug targeting
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更新日期:2003-01-01 00:00:00
abstract::Recent research into the complex and varied components of rheumatoid arthritis (RA) is leading to the development of more effective targets for pharmaceutical approach than even before. Current treatment of RA frequently includes the use of nonsteroidal anti-inflammatory drugs, such as Diclofenac sodium (DFNa) in spit...
journal_title:Journal of drug targeting
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doi:10.1080/10611860701725191
更新日期:2008-01-01 00:00:00
abstract::Organic anion-transporting polypeptides (OATPs) encoded by the SLCO genes constitute an important transporter superfamily that mediates transmembrane transport of various clinical drugs and endogenous nutrients. Eleven human OATPs with different transport functions are expressed in various tissues. Bile acids, steroid...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.3109/1061186X.2013.832767
更新日期:2014-01-01 00:00:00