Vascular clearance and organ uptake of G- and F-actin in the rat.

This study comparatively evaluated the kinetics of removal and organ distribution of circulating G- and F-actin. Both F- and G-actin were cleared in two phases (fast component with a t1/2 of 3-5 min and a slow component with a t1/2 of hours). There was no effect of dose on either the fast- or slow-compartment clearance kinetics at the doses tested (5-100 micrograms/100 g body wt).