PMID- 17121354 OWN - NLM STAT- MEDLINE DCOM- 20070330 LR - 20131121 IS - 1001-5515 (Print) IS - 1001-5515 (Linking) VI - 23 IP - 5 DP - 2006 Oct TI - [Preparation of graded zirconia-hydroxyapatite composite bioceramic and its immunocompatibility in vitro]. PG - 1056-61 AB - Graded Zirconia-hydroxyapatite composite bioceramic and simplex Zirconia-hydroxyapatite composite bioceramic were produced, and the extractes of these two of materials were made to evaluate their immunocompatibility. Scanning electron microscope (SEM) was used to detect the character of the surface of the graded composite bioceramic. Holding and without holding phytohemagglutinin (PHA), proliferation and activation of peripheralblood monocytes(PBMCs) cultured in the two extracts were studied. Cultured in PHA after 72 hours, the proliforation rate of the graded composite group was significantly higher than the simplex composite group (P < 0.01). There was no difference of apoptosis of PBMCs of the two groups (P > 0.05). Cultured in PHA after 24 hours, the ratio of CD3/CD69 positive PBMCs of the simple composite group was significantly higher than that of the graded composite material group (P < 0.01). The numbers of PBMCs activated by the graded composite material group were less than that of the simply composite material group and the technique of graded composite will be helpful to improve its immunocompatibility. FAU - Quan, Renfu AU - Quan R AD - Department of Orthopaedics, Second Affiliated Hospital, Zhejiang University, Hangzhou 310009, China. quanrenfu@126.com FAU - Yang, Disheng AU - Yang D FAU - Wu, Xiaochun AU - Wu X FAU - Wang, Hongbin AU - Wang H FAU - Miao, Xudong AU - Miao X FAU - Li, Wei AU - Li W LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Sheng Wu Yi Xue Gong Cheng Xue Za Zhi JT - Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi JID - 9426398 RN - 12001-21-7 (Dental Porcelain) RN - 91D9GV0Z28 (Durapatite) RN - C6V6S92N3C (Zirconium) RN - S38N85C5G0 (zirconium oxide) SB - IM MH - Adult MH - Cells, Cultured MH - *Dental Porcelain/chemistry/pharmacology MH - *Durapatite/chemistry/pharmacology MH - Humans MH - Materials Testing MH - Monocytes/*drug effects/immunology MH - *Zirconium/chemistry/pharmacology EDAT- 2006/11/24 09:00 MHDA- 2007/03/31 09:00 CRDT- 2006/11/24 09:00 PHST- 2006/11/24 09:00 [pubmed] PHST- 2007/03/31 09:00 [medline] PHST- 2006/11/24 09:00 [entrez] PST - ppublish SO - Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2006 Oct;23(5):1056-61.