The immunogenicity of trypsinized and radiation-sterilized bovine fascia enriched with pulverized calf cartilage was tested by the regional lymph node blastic cell reaction. The influence of these grafts on the adjacent tissue and on regeneration processes was examined histologically. After transplantation into mice the grafts stimulated growth of new connective tissue and did not evoke an increase of the blastic cell reaction in the regional lymph nodes.
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