Objective To establish a method for the determi nation of hesperidin in Xiangsha Yangwei Pill(XYP).Methods Reversed -phrase HPLC was adopted.T he sample was injected into Sep -Pak C 18 cartridge for sample purifica-tion.The chromatographic conditio ns were:Prodigy ODS(150mm?4.6mm,5?m)as analytic column,methanol -wa-ter -acetic acid(35:61:4)as mobile phase,detect wavelength a t 283nmand the flowrate being 1.0mL /min.Results The linear range of hesperidin was from0.148～1.481?g,r =0.9998.The mean recovery was 100.3%,RSD =1.5%(n=6).Conclusion This method was simple,practical,accurate and suitable for the qualit y control of XYP.

The cross-disciplinary form-function joint teaching of nervous system centered on organ was carried out in the Second Military Medical University for medical students of the eight-year system according to its actual situation.The nervous system was selected as the teaching content and problem-based learning was used,with the fusion of three aspects of knowledge of histology and embryology,physiology and human anatomy and the integration of teachers from different disciplinarians.The effect was good.

Objective To evaluate the value of CT and MRIin diagnosis of littoral cell angioma(LCA) of spleen.Methods CT and MRI findings the data of 6 patients with LCA were rospectively analyzed,and all patients were proved LCA of spleen by pathology.Then enhanced CT (n =4 cases) and MRI (n =2 cases) were performed.The imaging performance of LCA was observed,and its imaging features was summarized.Results None of patients showed obvious signs and symptoms of hypersplenism,4 cases were with splenomegaly.5 patients had a single lesion,only one had few lesions.There were not any calcification or envelopement of all the lesions.On CT,all lesions demonstrated distinct borders.The enhanced scan for low-density nodules demonstrated slow progressive enhancement.On MRI,all the LAC had well circumscribed borders,and demonstrated T1 · hypointense and T2-equal,hyperintense signals,and progressive enhancement on the post contrast images.Conclusion CT and MRI imaging of littoral cell angioma of spleen have special imaging characteristics,those particular findings is helpful in the diagnosis.

A teaching method called cross-disciplinary joint teaching,which integrated the neural system-based physiology,anatomy and histology from gross morphology to micmstructure,then to physiological function,was carried out on 2010 clinical eight-year program medical students.Jointteaching method was carried out throughout the whole courses.That means in three subjects related to the discipline,teachers compile the textbook,discuss teaching scheme,compile cases,collectively prepare lessons,and attend lectures and discussion together.Flexible teaching forms such as casebased teaching,problem-based teaching and bilingual teaching were also run through the whole processes of the teaching.Compared with the traditional teaching model,cross-disciplinary joint teaching not only achieves the integration of morphology,microstructure and functions of nervous system,but also has a priority of helping the students to develop a more efficient learning ability such as initiative study and thinking extension.