国家自然科学基金青年基金30900598;河南省科技厅基础与前沿技术研究项目142300410380;河南省卫生厅项目201303211,082102310088;河南省科技厅项目122102310648;the National Natural Science Foundation of China for the Youth, No. 30900598;the Basic and Cutting-Edge Technology Research Projects of Henan Provincial Science and Technology Department, No. 142300410380;the Project of Henan Provincial Health Department, No. 201303211, 082102310088;the Project of Henan Provincial Science and Technology Department, No. 122102310648