Subconjunctival sustained release 5-fluorouracil for glaucoma filtration surgery

Acta Pharmacologica Sinica
Li-jun CuiJian-gang Yang

Abstract

To determine the release characteristics of a 5-fluorouracil-loaded poly (lactic acid) disc (5-FU-PLA-DS) and the effect of sustained drug delivery on the success of glaucoma filtration surgery in rabbit eyes. A method of microspheres accumulated by excessive carriers was used in the preparation of the 5-FU-PLA-DS. The disc was characterized for drug loading, entrapment efficiency, in vitro release, and external morphology. It was then implanted subconjunctivally into rabbit eyes with trabeculectomy. Intraocular pressure, ocular inflammatory reaction, filtration bleb appearance, and persistence were evaluated up to postoperative d 90. A quantitative analysis of 5-fluorouracil (5-FU) was performed in the aqueous humor. Ultrasound biomicroscopy was used to assess the appearance of the filtering fistula. The 5-FU-PLA-DS was produced with the drug-loading of 3.07+/-0.08 mg (mean+/-SD). 5-FU was released for 91 d with suppressive concentrations. The decrease in intraocular pressure from baseline was significantly more marked in the 5-FU-PLA-DSimplanted eyes during postoperative d 3-90, and the persistence of bleb and filtration fistula was longer than the control eyes (P<0.05). Corneal toxicity and hyperemia triggered by 5-FU was lo...Continue Reading

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Citations

Jun 15, 2011·Clinical & Experimental Ophthalmology·Justyna Jurkowska-DudzińskaTomasz Zarnowski
Jun 9, 2012·Acta Ophthalmologica·Sunil P DeokuleHiroki Kaneko
Nov 13, 2012·Current Opinion in Pharmacology·Marco Attilio ZarbinRobert Ritch
May 8, 2009·Expert Review of Medical Devices·Victoria R Kearns, Rachel L Williams
Apr 6, 2019·Journal of Biomedical Materials Research. Part a·Chao YangHailin Cong
Dec 22, 2016·Advances in Therapy·Vanessa Andrés-GuerreroAnastasios-Georgios Konstas
Feb 12, 2017·Nanomedicine·Rini Rachel Joseph, Subbu S Venkatraman

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