Effect of defibrinogenation on collagen synthesis in granulation tissue. A study in the rabbit.

Collagen synthesis was studied in sponge-induced early granulation tissue from rabbits defibrinogenated by Arvin. Tissue slices were incubated in vitro with 14C-proline. The formation of 14C-hydroxyproline and the incorporation of 14C-proline into proteins was determined. The incorporation of proline into collagen and proteins was equally reduced after defibrinogenation. A possible explanation for this is a reduced number of active fibroblasts in granulation tissue formed during defibrinogenation.