Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland).
Med Sci Monit. 2019 Apr 28;25:3133-3139. doi: 10.12659/MSM.914568.
BACKGROUND Osteoporosis is an increasingly prevalent disease characterized by decreased bone mass and deterioration of the bone microstructure, which contribute to increased fragility and subsequent fragility fractures, especially in elderly individuals. Rhizoma Drynariae (DRE) is among the most frequently used herbal medicines for the treatment of osteoporosis. Transdermal delivery is a proven novel pathway for drug treatment and has several advantages over traditional drug delivery routes. MATERIAL AND METHODS Female Sprague-Dawley osteoporotic fracture model rats were divided into 3 groups: the control group, the DRE (90 mg/kg/day) group and the DRE cataplasm (containing 30 mg DRE, administered at right femur site daily) group. At 3 and 6 weeks after operation, we performed x-ray, histological, and biomechanical analyses, and evaluated bone marrow density of the femur. RESULTS Treatment with DRE increased callus formation and bone union compared with the control group. Moreover, DRE enhanced bone strength at the femoral diaphysis in the osteoporotic fractures in rats by increasing the ultimate load and stiffness compared with the control group. Furthermore, DRE restored the trabecular bone mineral density in the femur compared with the control group. DRE cataplasm application further enhanced the therapeutic effects against osteoporotic fracture in this rat model. CONCLUSIONS DRE cataplasm application might be useful against osteoporotic fracture.
骨质疏松症是一种日益普遍的疾病,其特征是骨量减少和骨微观结构恶化,导致脆性增加,随后发生脆性骨折,尤其是在老年人中。骨碎补是治疗骨质疏松症最常用的草药之一。经皮给药是一种已被证实的新型药物治疗途径,相对于传统的药物输送途径具有多个优势。
雌性 Sprague-Dawley 骨质疏松性骨折模型大鼠分为 3 组:对照组、骨碎补(90mg/kg/天)组和骨碎补巴布剂(每天在右股骨部位给予含 30mg 骨碎补的巴布剂)组。术后 3 周和 6 周时,进行 X 射线、组织学和生物力学分析,并评估股骨骨髓密度。
与对照组相比,骨碎补治疗可增加骨痂形成和骨愈合。此外,与对照组相比,骨碎补通过增加最大载荷和刚度增强了大鼠骨质疏松性骨折骨干的骨强度。此外,骨碎补恢复了股骨的小梁骨矿物质密度。与对照组相比,骨碎补巴布剂的应用进一步增强了对该大鼠模型中骨质疏松性骨折的治疗效果。
骨碎补巴布剂的应用可能对骨质疏松性骨折有用。