Exploration of teaching reform of biochemistry for seven-year program clinical medical students / 中华医学教育探索杂志

Biochemistry is an important basic medical course, and it is also a difficult course.In order to improve the comprehensive ability of seven-year program clinical medical students in Capital Medical University, teaching reform of Biochemistry was carried out.Teaching content was redesigned to strengthen the learning of basic knowledge of Biochemistry and to increase the depth of teaching content, while expanding the content by introducing new achievements and new technology to keep up with the forefront in the development of Biochemistry.Various methods such as the comparative method, case teaching and so on, were used flexibly in the teaching practice in order to improve teaching effects.The experiments carried out in the course were also redesigned and integrated, some distinctive experiments such as designing experiments, comprehensive experiments and innovative experiments were opened to improve students' hands-on ability and to cultivate students' scientific thinking.

Regulation of Notch1 activity by Rab5 in pancreatic cancer BxPC3 cells / 基础医学与临床

Objective To elucidates the regulation of Notch1 activity by Rab5 which controls endosome fusion.Methods Rab5 expression of BxPC3 cells were inhibited by siRNA interference,the changes of Notch ICD protein were measured by Western blot.We use Wortmannin and LY294002 which inhibit the acticity of Phosphatidylinositol(PI) 3-kinases to investigate Notch ICD protein level.Results After inhibiting Rab5 expression or the activity of Phosphatidylinositol(PI) 3-kinases,Notch ICD protein level and the growth of BxPC3 cells decreased.Conclusion In BxPC3 cells,Rab5 and Phosphatidylinositol(PI) 3-kinases are important to regulate Notch1 activity and the activation of Notch is dependent on endocytosis.