超声电导活性骨提取物治疗胫骨骨折的临床观察

目的评估超声电导活性骨提取物治疗高能量胫骨骨折的临床疗效。方法将2007年1月至2012年3月60例采用切开复位内固定或使用带锁髓内钉内固定的胫骨骨折患者完全随机分为试验组和对照组，各30例。试验组采用超声电导活性骨提取物治疗：术后第7天起，每天治疗30min，持续15d，对照组术后予以不含活性骨提取物的超声电导治疗。观察2组治疗效果。结果术后随访5～14个月。试验组胫骨骨折愈合时间为9—15周，平均（11±3）周，无延迟愈合和骨不连发生；对照组为13～36周，平均（18±4）周，延迟愈合3例（愈合时间为8～9个月）。按Johner—Wruhs标准评估，术后12和26周，试验组优良率分别为93．3％（28／30）和100．0％（30／30），对照组为50．0％（15／30）和86．7％（26／30），2组间差异有统计学意义（P〈0．01）。结论超声电导活性骨提取物是一种促进骨折愈合的有效方法。

Effect of Phytoestrogen Activity on hFOB 1.19 Osteoblast Cells of Vanilla Siamensis

The unsaponifiable compounds derived from the fresh green beans of Vanilla siamens＆ Rol. ex. Dow were assayed for the first time to detect their estrogenic activity. We used a simple screening method using the yeast two hybrid system based on the binding of a ligand to estrogen receptors. Yeast cells carrying the hER （human estrogen receptor） gene, ERE （estrogen response elements） and lacZ （β-galactosidase gene） are very suitable for screening and sensitive analysis of estrogenic compound. Our results showed that V. siamensis plant extracts bind with relatively affinity to YES- hERa was 2.27-fold the relative potency ofestradiol （E2） in YES-hERa. The effects of phytoestrogen activity on the osteoblast cells were examined on the proliferation of hFOB 1.19 cells and the bone mineralization process. V. siamens＆ was a positive screening result and induced mineralization ofosteoblasts. This study indicated that V. siamensis plant extract exhibited the characteristic effects of a nature bone promoter compound as phytoestrogen.