BACTERIA BLOOD MATERIAL INTERACTIONS .1. INJECTED AND PRESEEDED SLIME-FORMING STAPHYLOCOCCUS-EPIDERMIDIS IN FLOWING BLOOD WITH BIOMATERIALS

被引:16
作者
BRUNSTEDT, MR
SAPATNEKAR, S
RUBIN, KR
KIESWETTER, KM
ZIATS, NP
MERRITT, K
ANDERSON, JM
机构
[1] CASE WESTERN RESERVE UNIV, DEPT MACROMOLEC SCI, CLEVELAND, OH 44106 USA
[2] CASE WESTERN RESERVE UNIV, INST PATHOL, CLEVELAND, OH 44106 USA
[3] CASE WESTERN RESERVE UNIV, DEPT BIOMED ENGN, CLEVELAND, OH 44106 USA
来源
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH | 1995年 / 29卷 / 04期
关键词
D O I
10.1002/jbm.820290405
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Blood-material interactions were studied using in vitro recirculation with human blood, slime-forming Staphylococcus epidermidis, and cardiovascular materials. Staphylococcus epidermidis, under preseeded or injected conditions, adhered to nonsmooth materials and elevated plasma levels of fibrinopeptide A (FpA) and C3a in the presence of all materials. Increased white blood cell (WBC) and platelet adhesion and thrombospondin and platelet factor 4 (PF4) release were noted for respective materials in the presence of injected bacteria. Materials that adhered significant quantities of injected S. epidermidis exhibited low levels of adsorbed proteins. Materials with high levels of preseeded S. epidermidis showed high levels of adsorbed proteins. Adhesion of preseeded bacteria and blood plasma elevations of C3a and FpA were lowest on semicrystalline polymer substrates, intermediate on halogenated substrates, and highest on amorphous substrates. In the presence of injected bacteria, WBCs and platelets adhered at earlier recirculation times to amorphous substrates than to semicrystalline substrates. (C) 1995 John Wiley & Sons, Inc.
引用
收藏
页码:455 / 466
页数:12
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