(1) Island-formation by gathering of many macrophages ingesting alginate (IF)
Huge lymph follicles were found around PGA fibers (3/8 rats)
(2) “Pool” of alginate in the free state (PA)
Common changes included three steps in the five groups. Specific changes in the fibrin group included two steps and those in the three alginate groups included residual alginate in two different forms (IF and PA).
(b)
Experimental groups
IF
PA
SL group
Small amount
Large amount
WL group
Small amount
Moderate amount
NL group
Small amount
Small amount
IF: many macrophages were gathered in the form of an island, where they ingested the alginate. PA: there was a “pool” of alginate in a free state.