Brinzolamide- and latanoprost-loaded nano lipid carrier prevents synergistic retinal damage in glaucoma
Glaucoma is a common eye disease and a major cause of blindness. We designed brinzolamide (Brla)- and latanoprost (Ltp)-loaded nano-lipoidal carriers (NLCs) for glaucoma treatment. Brla and Ltp-loaded NLCs were designed and characterized by assessing the zeta potential, polydispersity index, X-ray diffraction and scanning electron microscopy images, and particle size. Drug release was assessed by in vitro and ex vivo methods to determine transcorneal permeation, ocular irritation, and cell viability. Moreover, Brla- and Ltp-loaded NLCs were assessed in terms of the management of raised intraocular pressure (IOP). The size of Brla- and Ltp-loaded NLCs was <200 nm, the drug entrapment efficiency was 97.5%, and the zeta potential was 35.33 mv. The transcorneal permeation levels of Blra and Ltp after 8 h were 50.5% and 49.4%, respectively; after 24 h, they were 81.4% and 84.2%, respectively. However, NLCs are not cytotoxic. Moreover, Brla+Ltp-treated NLCs effectively reduced IOP in glaucoma patients. Therefore, Brla+Ltp-loaded NLCs showed promising effects against glaucoma.
Copyright (c) 2022 Liping Chen, Ruixin Wu
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