Osteoclast Growth Inhibitor, Oral Composition, and Preventive or Therapeutic Agent for Bone Diseases, Containing Liposome-Encapsulated Lactoferrin

摘要

A growth of osteoclasts is inhibited by orally administering a liposomal lactoferrin. Thus a bone disease in which the osteoclast is involved is effectively prevented or treated by orally administering the liposomal lactoferrin. The present invention provides an osteoclast growth inhibitor, an oral composition and a preventive and therapeutic agent for bone diseases (osteoporosis, rheumatoid, periodontal diseases with alveolar bone resorption, which contain the liposomal lactoferrin, and a preventive or therapeutic method for the bone diseases. According to the present invention, the growth of the osteoclasts can be inhibited and the bone diseases due to promotion of the osteoclast growth can be prevented or treated.