1. Inst. of Human Nutrition; Medical College of Qingdao Univ.; 38 Dengzhou Road Qingdao 266021 PR China
2. Inst. of Nutrition and Food Health; Baotou Medical College; Baotou 014040 PR China
3. Dept. of Oncology; the Affiliated Hospital of Medical College; Qingdao Univ.; Qingdao 266003 PR China
4. Laboratory of Cellular and Molecular Biology; Medical College of Qingdao Univ.; Qingdao 266071 PR China
5. Dept. of Neurosurgery; Hospital of Medical College, Qingdao Univ.; Qingdao 266003 PR China
6. Dept. of Orthopedics; Hospital of Baotou Medical College; Baotou 014040 PR China