OBJECTIVE:To train the students’ability about true-and-false identification of pini pollen,typhae pollen and Lygo-dium japonicum. METHODS:Teachers firstly used flexible and diversifided teaching methods to train the learning interest of stu-dents,and then picture antithesis,classroom presentation and other methods were used to teach the distinctive features between the true and false traditional Chinese medicine in the characters of identification. RESULTS&CONCLUSIONS:There were obvious dif-ference among the colors,physicochmical poperties,microscopic characteristics and other aspects of 3 traditional Chinese medi-cines. According to the teaching,the students could not only distinguish the 3 traditional Chinese medicines accurately, but also could identify the true-and-false of them. picture antithesis and classroom presentation method are simple and vivid, and can be used for the training of students’ability about true-and-false identification.

Post-stroke cognitive impairment (PSCI) is a kind of common complications after stroke, which seriously affects the functional recovery. The diagnosis of PSCI mainly depends on imaging measures and scale assessments at present, but these methods have some limitations. Blood samples are relatively convenient to collect for biomarker detection, and uitable for practical application in a clinical setting. Along with a remarkable development of molecular biology, increasing studies have shown that biomarkers of neuroinjury, inflammation and oxidative stress have played important roles in the development and progression of PSCI. Herein we review the progress and pathogenesis of blood biomarkers for PSCI, and the application of these biomarkers in prevention and early diagnosis of PSCI.