摘要
目的研究骨质疏松症大鼠肠黏膜中钙结合蛋白CaBP-D9K的mRNA和蛋白表达,揭示骨质疏松症的发病机理,阐述纳米钙补肾中药的调节作用机制。方法用切除大鼠双侧卵巢的方法复制骨质疏松症模型,用纳米钙及具有益肾填精、补钙壮骨作用的纳米钙补肾中药大、中、小剂量对实验大鼠治疗12周,以骨疏康颗粒剂、雌二醇(E2)及钙尔奇D600作为阳性对照组,正常大鼠和模型空白组为空白对照组。用PCR法、Western印迹法检测骨质疏松症大鼠肠黏膜中CaBP-D9K的mRNA和蛋白表达。结果正常大鼠肠黏膜组织可以在基因、蛋白水平表达钙结合蛋白CaBP-D9K,而且在肠钙吸收中可能起到重要作用。大鼠骨质疏松症的发生与肠黏膜组织中钙结合蛋白CaBP-D9KmRNA和蛋白表达的变化有关,从而影响肠钙的吸收。结论纳米钙补肾中药通过调控大鼠肠黏膜钙结合蛋白CaBP-D9KmRNA和蛋白表达,促进肠钙的吸收,对于骨质疏松症有一定的防治作用。
Objective To explore the mechanism of nanometer calcium combined with tonifying kidney herbs on osteoporosis by studying the expression of CaBP-D9K mRNA and protein in the intestinal mucosa of osteoporosis rats due to kidney deficiency. Method The rat model of osteoporosis due to kidney deficiency was established by ovariectomy. Applying the nanometer calcium and nanometer calcium combined with tonifying kidney herbs （big, middle and small dosage） to the rats for 12 weeks, choosing Gushukang, E2 and Gai＇erqiD600 as the control drugs. The expression of the CaBP-D9K mRNA and protein in the intestinal mucosa of the osteoporosis rats due to kidney deficiency was determined by the method of RT-PCR and western blotting. Result There was CaBP-D9K and protein expression in the normal rats intestinal mucosa tissue, which plays an important role in the process of the intestinal calcium absorption. The episode of the rat osteoporosis due to kidney deficiency is related to the change of the CaBP-D9K and protein expression and has influence on the intestinal calcium absorption. Conclusion The nanometer calcium combined with tonifying kidney Chinese herbs can stimulate the calcium absorption of intestine, prevent and treat the osteoporosis due to kidney deficiency through regulating the expression of CaBP-D9K mRNA and protein in the intestinal mucosa.
出处
《中国中医药信息杂志》
CAS
CSCD
2006年第8期30-32,共3页
Chinese Journal of Information on Traditional Chinese Medicine
关键词
骨质疏松症
纳米钙补肾中药
钙结合蛋白
osteoporosis
the nanometer calcium combined with tonifying kidney herbs
calcium bind proteining
