The use of BMP-2 coupled - Nanosilver-PLGA composite grafts to induce bone repair in grossly infected segmental defects.
The use of BMP-2 coupled - Nanosilver-PLGA composite grafts to induce bone repair in grossly infected segmental defects.
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BMP-2耦合的使用 - 纳米层-PLGA复合移植物在严重感染的节段缺陷中诱导骨修复。
DOI:
10.1016/j.biomaterials.2010.08.041
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发表时间:
2010-12
期刊:
影响因子:
14
通讯作者:
Soo, Chia
中科院分区:
文献类型:
--
作者:
Zheng, Zhong;Yin, Wei;Zara, Janette N.;Li, Weiming;Kwak, Jinny;Mamidi, Rachna;Lee, Min;Siu, Ronald K.;Ngo, Richard;Wang, Joyce;Carpenter, Doug;Zhang, Xinli;Wu, Benjamin;Ting, Kang;Soo, Chia
Healing of contaminated/infected bone defects is a significant clinical challenge. Prevalence of multi-antibiotic resistant organisms has renewed interest in the use of antiseptic silver as an effective, but less toxic antimicrobial with decreased potential for bacterial resistance. In this study, we demonstrated that metallic nanosilver particles (with a size of 20–40 nm)-poly(lactic-co-glycolic acid) (PLGA) composite grafts have strong antibacterial properties. In addition, nanosilver particles-PLGA composite grafts did not inhibit adherence, proliferation, alkaline phosphatase activity, or mineralization of ongrowth MC3T3-E1 pre-osteoblasts compared to PLGA controls. Furthermore, nanosilver particles did not affect the osteoinductivity of bone morphogenetic protein 2 (BMP-2). Infected femoral defects implanted with BMP-2 coupled 2.0% nanosilver particles-PLGA composite grafts healed in 12 weeks without evidence of residual bacteria. In contrast, BMP-2 coupled PLGA control grafts failed to heal in the presence of continued bacterial colonies. Our results indicate that nanosilver of defined particle size is bactericidal without discernable in vitro and in vivo cytotoxicity or negative effects on BMP-2 osteoinductivity, making it an ideal antimicrobial for bone regeneration in infected wounds.
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影响因子:
14
作者:
Deng, Y;Lin, XS;Chen, GQ
通讯作者:
Chen, GQ
DOI:
10.1302/0301-620x.85b6.13509
发表时间:
2003-08-01
影响因子:
--
作者:
Ellington, JK;Harris, M;Hudson, M
通讯作者:
Hudson, M
影响因子:
3.5
作者:
Journeaux, SF;Johnson, N;Morgan, DAF
通讯作者:
Morgan, DAF
影响因子:
3.1
作者:
JONSSON, P;LINDBERG, M;WADSTROM, T
通讯作者:
WADSTROM, T
影响因子:
5.1
作者:
Kang, Q;Sun, MH;He, TC
通讯作者:
He, TC