Aim To determine the effect of local simvastatin application on the mRNA expression level of transforming growth factor-β1 （TGF-β1）, bone morphogenetic protein-2 （BMP-2） and vascular endothelial growth factor （...Aim To determine the effect of local simvastatin application on the mRNA expression level of transforming growth factor-β1 （TGF-β1）, bone morphogenetic protein-2 （BMP-2） and vascular endothelial growth factor （VEGF） in the tooth sockets of rat. Methodology Forty-eight male Wistar rats were randomly divided into experimental and control groups （n=24）. Polylactic acid/polyglycolic acid copolymer carriers, with or without simvastatin, were implanted into extraction sockets of right mandibular incisors. The expression of TGF-β1, BMP-2 and VEGF mRNA was determined by in situ hybridization in the tooth extraction socket at five days, one week, two weeks and four weeks after implantation. Results The fusiform stroma cells in the tooth extraction socket began to express TGF-β1, BMP-2 and VEGF mRNA in both experimental and control groups from one week after tooth extraction until the end of experiment. The expression of TGF-131 and BMP-2 mRNA in the experimental group was significantly up-regulated after one, two and four weeks, and expression of VEGF mRNA was significantly increased after one and two weeks compared with that in the control group. Conclusion The findings indicate that local administration of simvastatin can influence alveolar bone remodeling by regulating the expression of a school of growth factors which are crucial to osteogenesis in the tooth extraction socket.展开更多
AIM:To investigate the effect of locally used Shahaosan on preventing the complication of extraction of impacted tooth.METHODS:274 cases patients with extraction of impacted teeth were randomly devided into 3 groups n...AIM:To investigate the effect of locally used Shahaosan on preventing the complication of extraction of impacted tooth.METHODS:274 cases patients with extraction of impacted teeth were randomly devided into 3 groups named A,B and C.Shahaosan and Yunnan white drug were processed into drug A and B by department of pharmacy with the same color, shape and quality which are blind to doctors and patients.When the impacted teeth were extracted, administed group A(92 cases) with drug A,group B(86 cases) with drug B and group C(96 cases ) was a blank control. After the operation,incidence and severe intensity of dry socket in each group were observed and evaluated by scores.RESULTS:The incidence of dry socket in group A,B and C were 0.09%(1/92),2.32%(2/86),8.33%(8/96).There was no significant difference between group A and B, group B and C, while a significant difference showed between group A and C.The PoSSe score in group A, B and C was 19.36,27.80 and 22.83 respectively.Afer the experiment the department of pharmacy informed that drug A is Shahaosan and drug B is Yunnan white drug.CONCLUSTON:Compiments of dry socket induced by extracting of lower jaw impacted teeth can be prevented by locally administered with Shahaosan, but no significant effect of alleviating the symptom of dental extraction.展开更多
基金supported by grants from the National Nature Science foundation of China(Grant Nos.30872912 and 30830108)
文摘Aim To determine the effect of local simvastatin application on the mRNA expression level of transforming growth factor-β1 （TGF-β1）, bone morphogenetic protein-2 （BMP-2） and vascular endothelial growth factor （VEGF） in the tooth sockets of rat. Methodology Forty-eight male Wistar rats were randomly divided into experimental and control groups （n=24）. Polylactic acid/polyglycolic acid copolymer carriers, with or without simvastatin, were implanted into extraction sockets of right mandibular incisors. The expression of TGF-β1, BMP-2 and VEGF mRNA was determined by in situ hybridization in the tooth extraction socket at five days, one week, two weeks and four weeks after implantation. Results The fusiform stroma cells in the tooth extraction socket began to express TGF-β1, BMP-2 and VEGF mRNA in both experimental and control groups from one week after tooth extraction until the end of experiment. The expression of TGF-131 and BMP-2 mRNA in the experimental group was significantly up-regulated after one, two and four weeks, and expression of VEGF mRNA was significantly increased after one and two weeks compared with that in the control group. Conclusion The findings indicate that local administration of simvastatin can influence alveolar bone remodeling by regulating the expression of a school of growth factors which are crucial to osteogenesis in the tooth extraction socket.
文摘AIM:To investigate the effect of locally used Shahaosan on preventing the complication of extraction of impacted tooth.METHODS:274 cases patients with extraction of impacted teeth were randomly devided into 3 groups named A,B and C.Shahaosan and Yunnan white drug were processed into drug A and B by department of pharmacy with the same color, shape and quality which are blind to doctors and patients.When the impacted teeth were extracted, administed group A(92 cases) with drug A,group B(86 cases) with drug B and group C(96 cases ) was a blank control. After the operation,incidence and severe intensity of dry socket in each group were observed and evaluated by scores.RESULTS:The incidence of dry socket in group A,B and C were 0.09%(1/92),2.32%(2/86),8.33%(8/96).There was no significant difference between group A and B, group B and C, while a significant difference showed between group A and C.The PoSSe score in group A, B and C was 19.36,27.80 and 22.83 respectively.Afer the experiment the department of pharmacy informed that drug A is Shahaosan and drug B is Yunnan white drug.CONCLUSTON:Compiments of dry socket induced by extracting of lower jaw impacted teeth can be prevented by locally administered with Shahaosan, but no significant effect of alleviating the symptom of dental extraction.
