TY - JOUR AU - Cui Li-jun AU - Sun Nai-xue AU - Li Xing-hua AU - Huang Jie AU - Yang Jian-gang PY - 2016 TI - Subconjunctival sustained release 5-fluorouracil for glaucoma filtration surgery JF - Acta Pharmacologica Sinica; Vol 29, No 9 (September 2008): Acta Pharmacologica Sinica Y2 - 2016 KW - N2 - Aim: 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. Methods: 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. Results: 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-DS-implanted eyes during postoperative d 3-90, and the persistence of bleb and filtration fistula was longer than the control eyes (P Conclusion: 5-FU-PLA-DS displaying sustained intraocular release of 5-FU, reduced intraocular pressure, and prolonged bleb persistence, while significantly reducing 5-FU toxicity. UR - http://www.chinaphar.com/article/view/6060