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作 者:石大玲[1] 汪学红[2,4] 姜婷[1] 何学斌[3] 沈霖[4]
机构地区:[1]华中科技大学同济医学院,武汉430030 [2]武汉体育学院 [3]华中科技大学同济医学院附属梨园医院 [4]华中科技大学同济医学院附属协和医院
出 处:《中华实验外科杂志》2012年第7期1254-1256,共3页Chinese Journal of Experimental Surgery
摘 要:目的观察密骨方对骨质疏松性骨折(OPF)白细胞介素-1(IL-1)的影响。方法将90只雌性Wistar大鼠随机分为对照组(Sham),模型组(OVX)与密骨方治疗组(MGF),OVX组及MGF组行卵巢摘除术,同时MGF组和OVX组大鼠均致其右侧股骨上I/3处骨折。MGF组按100mg/(kg·d)的剂量灌胃给药,Sham组和OVX组给予同体积的生理盐水,每日1次,疗程分别为2、4、6周,采用免疫组织化学法观察骨折端IL—1的表达。结果OVX组IL-1在骨折端的表达随时间的延长(2、4、6周)而显著升高(0.20660±0.03195、0.20790±0.03347、0.21120±0.02429,P〈0.05),而MGF组IL-1在骨折端的表达随时间的延长而显著降低(0.21580±0.02800、0.20870±0.03252、0.20480±0.03465,P〈0.05);同时MGF组第6周IL-1在骨折端的表达显著低于OVX组(P〈0.01)。结论MGF能显著降低大鼠OPF端IL-1的合成分泌,从而抑制破骨细胞的活性,促进骨折愈合。Objective To study the effects of density bone prescription, on interleukin (IL)-I in ovariectomized rats with osteoporosis-induced fracture (OPF). Methods Ninety female Wistar rats were randomly allocated into normal control group (sham), mode/group (OVX) and MGF group. The rats in OVX group and MGF group were ovariectomized, meanwhile their right femur fractures at the position of 1/ 3 were made. The rats in MGF group were given MGF by intragastric gavage at the dose of 100 mg/kg, and the rest two groups were given normal saline at the same dose, once a day, for 2, 4 or 6 weeks. The ex- pression of IL-1 in the fracture ends was detected by using immunohistochemistry. Results With time passing, the expression of IL-1 at the fracture ends in OVX group was obviously increased (P 〈 0.05 ), in MGF groups it was significantly decreased ( P 〈 0. 05-P 〈 0. 01 ). The expression of IL-2 at the fracture ends in MGF group was significantly lower than in OVX group ( P 〈 0. 01 ). Conclusion MGF could sig- nificantly reduce the IL-1 synthesis and secretion at the OPF ends, thereby inhibiting osteoclast activity, and promoting fracture healing.
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