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 characterstic order of the crystal and the mobility of liquid. The system has been compared to the transporting form of cholesterol in body. The present study reports autovectoring potentials of the drug liquid crystals using diclofenac diethylammonium (DD) as a model. The drug based liquid crystals of DD were prepared employing temperature induced transformation of isotropic form to the liquid crystal form. The prepared liquid crystal systems were incubated with 1% phosphatidylcholine in order to stabilise the surface and restrict it into the liquid crystalline state. The system was characterised for viscosity variation, X-ray diffraction pattern, partitioning behaviour and in vitro diffusion profile. In vivo vectorising potential of the developed system was evaluated using rats as test animal and studying for the organ level distribution and drug compartmentalisation. The system exhibited satisfactory vecterisation as significant amount of administered dose was localised selectively in liver.
journal_name
J Drug Targetjournal_title
Journal of drug targetingauthors
Jaitely V,Vyas SPdoi
10.3109/10611869908996839keywords:
subject
Has Abstractpub_date
1999-01-01 00:00:00pages
315-22issue
5eissn
1061-186Xissn
1029-2330journal_volume
6pub_type
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journal_title:Journal of drug targeting
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journal_title:Journal of drug targeting
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abstract::Dendrimers, spherical or quasi-spherical synthetic polymers in the nano-size range, have found useful applications as prospective carriers in drug and gene delivery. The investigation of dendrimer uptake by cells has been previously achieved by the incorporation of a fluorescent dye to the dendrimer either by chemical...
journal_title:Journal of drug targeting
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journal_title:Journal of drug targeting
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abstract::beta-Glucuronidase (GUSB) is a lysosomal enzyme that could be developed as a brain therapy for Type VII Mucopolysaccharidosis. However, GUSB does not cross the blood-brain barrier (BBB). To enable BBB transport of the enzyme, human GUSB was re-engineered as a fusion protein with the chimeric monoclonal antibody (MAb) ...
journal_title:Journal of drug targeting
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journal_title:Journal of drug targeting
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journal_title:Journal of drug targeting
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abstract::The transport of 125I-radiolabelled latex nanoparticles across the nasal mucosa of rats was studied using a range of particle sizes and surface coatings. Translocation of the particles into the blood stream was examined by means of monitoring the radiolabel associated with the particles. Particles were detected in the...
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journal_title:Journal of drug targeting
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abstract::Several experimental approaches have been tested for suicide gene delivery into tumor cells, including viral and non-viral vectors. In this study, we compared the efficiency of Herpes Simplex Virus type 1 thymidine kinase gene (HSV-tk) delivery by retrovirus-producing cells and DNA/liposome complexes for the treatment...
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abstract::Anionic, cationic, and neutral liposomes were constructed to contain IL-2 in order to evaluate their affinity to a cervical cancer cell line (INBL) and to determine whether they can present IL-2 on their external surface. When these liposomes were co-cultured with INBL, the anionic liposomes were the only ones found t...
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