Nakamura K, et al. (2002). The enhancing effect of nasal absorption of FITC-dextran 4,400 by beta- sitosterol beta-D-glucoside in rabbits. J Control Release 79, 147-55; Hattori S, et al. (2002). Real-time zymography and reverse zymography: a method for detecting activities of matrix metalloproteinases and their inhibitors using FITC- labeled collagen and casein as substrates. Anal Biochem 301, 27-34; Thiagarajah JR, et al. (2001). Evidence of amiloride-sensitive fluid absorption in rat descending colonic crypts from fluorescence recovery of FITC-labeled dextran after photobleaching. J Physiol 536, 541-53.