Abstract:
:Three different metal salts, silver nitrate, uranyl acetate and lead citrate, are mixed with a collagen gel to produce 3 metal/collagen sponges. These sponges were implanted subcutaneously in the rat and samples harvested after 5 days of implantation. TEM observation shows that sponges are degraded and digested by macrophages, polymorphonuclear cells (PMN) and fibroblasts. We have observed that the location of the precipitates differs according to the metal added to the collagen. Lead precipitates stay longer on the collagen mesh while silver precipitates, after 5 days, are soon digested and are found in phagosomes of macrophages. Uranium precipitates are digested with the collagen and uranium/collagen associated pictures are seen in phagolysosomes. Metal precipitates accumulated in phagolysosomes of macrophagic cells are recognized by X-ray microanalysis. The degradation process of implanted collagen is discussed.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Anselme K,Julliard K,Blaineau Sdoi
10.1016/0040-8166(90)90092-nsubject
Has Abstractpub_date
1990-01-01 00:00:00pages
81-91issue
1eissn
0040-8166issn
1532-3072pii
0040-8166(90)90092-Njournal_volume
22pub_type
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