- Effects of Icariin on expression of OPN mRNA and type I collagen in rat osteoblasts in vitro. Xiao, Q., Chen, A., Guo, F. Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban. (2005)