Methods One hundred and thirty 8-month-old femal SD rats were randomized into two groups of 65 each:the osteoporotic fracture model (OPFM) and the general fracture group (CFM).

• 方法选择8月龄雌性SPF级SD大鼠130只,随机分为2组:骨质疏松性骨折组(OPFM)与一般性骨折组(CFM),每组各65只。