TRANSPLANTATION IMMUNITY IN BONE HOMOGRAFTING
TRANSPLANTATION IMMUNITY IN BONE HOMOGRAFTING
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DOI:
10.1302/0301-620x.41b1.160
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发表时间:
1959-01-01
影响因子:
--
通讯作者:
CHALMERS, J
中科院分区:
文献类型:
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作者:
CHALMERS, J
Fresh bone autografts to a muscle bed in the rat gave rise to vigorous new bone formation from about the 4th day. The graft took the form of a hollow ossicle with central bone marrow at 18 days: it became progressively more regular in outline and was still present at 6 months. Fresh bone homo-grafts produced 2 separate phases of new bone formation[long dash]early and late. In the early phase non-lamellar woven bone appeared at about the 4th day, continued to grow until 8 days, and subsequently died. It arose from osteogenic cells of the homograft. In the late phase, which developed in relation to a few grafts after 4 weeks, the new bone was lamellar in character, and remained closely applied to the graft surface. Evidence is presented that this bone arose by metaplasia of the host connective tissues at the graft site. There was a local inflammatory response to the bone homograft. Both phases of homo-graft new bone formation were abolished if the animal was prepared by a skin homograft from the same donor 4 weeks before, but not if 4 months elapsed between the 2 grafting procedures. Freeze-dried bone homografts did not give rise to the early phase of homograft new bone but produced a few examples of the late phase after 5 months. The inflammatory response was less intense with freeze-dried homo-grafts than with fresh homografts. Skin homografts 3 weeks after fresh bone homografts from the same donor underwent an early rejection at 5-6 days. Skin homografts 3 weeks after freeze-dried bone homografts from the same donor had a mean survival time of twelve days, which was significantly longer than the mean survival time of 10-9 days in normal rats.