丹参注射液对大鼠下颌骨骨折愈合过程中BMP-2和TGF-β1的影响.docx
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1、丹参注射液对大鼠下颌骨骨折愈合过程中BMP2 和 TGFBi的影响向乐余伟Summary目的探讨丹参注射液对大鼠下颌骨骨折愈合的影响,并通过测量骨形成蛋白-2 (BMP-2)、转化生长因子-Bl (TGF-Bl)水平变化,探讨丹参促进下颌骨骨折愈合的械制。方法选取SD大鼠48只,通过双侧下颌骨体部造成颊舌侧贯穿不完全性骨折模型,按随机数字表法分为实验组和对照组,每组24只。实验组每天腹腔注射丹参注射液(1 mL/kg),对照组每天腹腔注射生理盐水。术后第1、2、3、4周,每组分别随机处死6只大鼠,采用酶联免疫吸附试验(ELISA)检测血清BMP-2、TGF-Bl的含量。取出双侧下颌骨,右侧下颌
2、骨行X线片检测骨折愈合情况并测量骨痂区的平均骨密度,标本经组织脱钙、石蜡包埋行HE染色后,采用骨组织形态计量学方法分析骨痂区骨小梁面积比、骨小梁宽度;左侧下颌骨骨痂,行组织粉碎,采用RT-qPCR技术检测BMP-2、TGF-Bl的表达情况。结果X线结果显示对照组骨折愈合明显延迟于实验组;从第2周开始,与对照组相比,实验组骨痂骨密度明显增加(P 0.05或P 0.01),骨痂区骨小梁面积比、骨小梁宽度显著性增大(P 0.05或P 0.01);差异随着愈合时间的延长而显著。ELISA结果显示,术后实验组血清BMP-2、TGF-B 1的浓度均高于对照组(P 0. 05)。RT-qPCR结果显示,术后
3、第2周开始,实验组骨痂中BMP-2及TGF-BlmRNA的表达均高于对照组(P 0.01) o结论丹参注射液促进下颌骨骨折愈合,可能与促进骨折愈合过程中BMP-2、TGF-B1基因的转录及蛋白表达有关。Key丹参注射液;下颌骨骨折;骨形成蛋白-2;转化生长因子-B1口 R285. 5 口 A 口 1673-7210 (2018) 08 (a) -0004-05Abstract Objective To investigate the effect of Danshen Injectionon mandibular fracture of healing in rat and observe t
4、he changes ofbone morphogenetic protein-2 (BMP-2) , transforming growth factor-0 1 (TGF-B 1) . Methods Forty-eight SD rats were operated forincomplete fracture of hibateral mandible penetrated from buccal sideto lingual side. The rats were divided into experimental group andcontrol group according t
5、o random number table, with 24 rats in eachgroup. The experiment group was administered with Danshen Injectionby intraperitoneal injection, and the control group was administeredwith physiologic saline by intraperitoneal injection. The righthealing of fracture were used to detect fracture healing by
6、 X-ray andto measure the average bone density of the callus area, the percenttrabecular and trabecular width were analyzed by bonehi stomorphometry and the serum levels of BMP-2, TGF-P 1 wasdetermined by ELISA at 1, 2, 3, 4 weeks after the operation. Theright healing of fracture were comminuted, and
7、 the expression ofBMP-2 and TGF-P 1 were analyzed by RT-qPCR. Results The X-ray resultsshowed that the fracture healing in the control group was obviouslydelayed in the experimental group. After 2 weeks, compared with thecontrol group, the callus bone mineral density (BMD) in theexperimental group w
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- 丹参 注射液 大鼠 颌骨 骨折 愈合 过程 BMP TGF 影响