Lycium barbarum polysaccharide protects against osteonecrosis of femoral head via regulating Runx2 expression.

Background: Osteonecrosis of femoral head (ONFH) is a pathological state caused by lack of blood supply in femoral head. This study aimed to explore the function of Lycium barbarum polysaccharide (LBP), an antioxidant agent extracted from L. barbarum, on ONFH.