甲状旁腺激素(1-34)、多聚赖氨酸应用于口腔种植体表面促成骨作用研究

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Abstract Objective To promote osteogenesis, parathyroid hormone which can promote bone formation was used to process surface of implant material.Methods Parathyroid hormone PTH (1-34) and polylysine were coated to the surface of the implant material through layer by layer self-assemble technique. ELISA was used to explore the in vitro pharmacokinetics regularity of the coating. The mouse embryos osteogenesis precursor cells MC3T3 E1 were seeded on the coated implant material surface. MTT, alkaline phosphatase semi-quantitative and PCR Methods were used to detect the in vitro influence of osteoblast biology behavior.Results PLL - PTH (1-34) polyelectrolyte multilayer membrane coating made by layer by layer self-assemble technique showed significant release process in the initial phase, then the release leveled off, and PTH (1-34) could be detected until 14 d. MTT: OD value of group C (1.738±0.026) on the 5 d elevated compared with 1 d (1.663±0.045) (P=0.0219). Alkaline phosphatase semi-quantitative: activity of alkaline phosphatase in group C (3.377±0.336) U/gprot was higher than in group A (2.537±0.083) U/gprot, B (2.843±0.060) U/gprot and D(2.063±0.061) U/gprot; the difference was statistically significant (P<0.05). PCR: expression level of ALP in four groups were highest on 7 d, and in group C was higher than in groups A, B and D (the difference was statistically significant, P<0.05); expression level of OCN in four groups were highest on 14 d, and in group C was higher than in groups A, B and D (the difference was statistically significant, P<0.05).Conclusions PLL - PTH (1-34) polyelectrolyte multilayer membrane can be made on implant material surface through layer by layer self-assemble technique. PTH (1-34) can release for a long time (14 d) by this technique, so as to promote proliferation and differentiation of the osteoblasts seeded on the surface.

Key words： PTH(1-34) polylysine layer by layer self-assemble technique implant

Received: 20 March 2016

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	Articles by authors
	WANG Xingxing
	LUO Xiaolong
	WU Gang
	HAN Xu
	GUO Xiaojing
	and WANG Dalin

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WANG Xingxing,LUO Xiaolong,WU Gang等. A study on osteogenesis promoted by PTH (1-34) and polylysine coating on the surface of implant[J]. Med. J. Chin. Peop. Armed Poli. Forc., 2016, 27(8): 814-818.

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http://journal08.magtechjournal.com/Jwk_wjyx/EN/ OR http://journal08.magtechjournal.com/Jwk_wjyx/EN/Y2016/V27/I8/814

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