**Author details**

Yan Nie1 , Shuaiqiang Zhang1 , Na Liu2 and Zongjin Li1,2\*

\*Address all correspondence to: zongjinli@nankai.edu.cn

1 Nankai University School of Medicine, Tianjin, P.R. China

2 The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, P.R. China
