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In situ hybrid nano drug delivery system (IHN-DDS) of antiretroviral drug for simultaneous targeting to multiple viral reservoirs: An in vivo proof of concept.
International Journal of Pharmaceutics 2017 April 16
We report In situ hybrid nano drug delivery system (IHN-DDS) of nevirapine (NVP) for simultaneous targeting to multiple viral reservoirs. The IHN-DDS system was comprised of a preconcentrate containing NVP, lipid, and a surfactant which when diluted with water resulted in the formation of nanoparticles of size range varied from 70 to 1100nm. Transmission electron microscopy and small angle neutron scattering studies of pellet and supernatant obtained after centrifugation of the IHN-DDS revealed spherical shaped nanoparticles and assembled structures, respectively. Uniform distribution of the NVP in lipid nanoparticles was confirmed by fourier transform infrared spectroscopy. Biodistribution studies in rats showed significant enhancement of NVP concentration of about 6.1, 5.8 and 3.7 fold in the liver, spleen, and brain, respectively after intravenous administration of IHN-DDS systems compared to plain NVP solution. In conclusion, IHN-DDS systems could be a promising approach for simultaneous multisite targeting and could provide therapeutic benefits in complete eradication of HIV infections.
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