1. Department of Dermatology, General Hospital of Ningxia Medical University, Yinchuan City, China
2. Department of Pathology, School of Basic Medicine, Ningxia Medical University, Yinchuan City, China
3. Ningxia Innovation Team of the Foundation and Clinical Researches of Diabetes and Its Complications, Yinchuan City, China
4. Department of Biochemistry and Molecular Biology, School of Basic Medicine, Ningxia Medical University, Yinchuan City, China