1. Department of Immunology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China
2. Department of Biochemistry and Molecular Biology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309, P.R. China
3. Department of Histology and Embryology, Logistics University of Chinese People's Armed Police Force, Tianjin 300309; 6Institute of Disaster Medicine, Tianjin University, Tianjin 300072, P.R. China