In order to explore the teaching methods of biochemistry experiment teaching,Biochemistry department of Wannan medical college adopts PBL and case-based teaching contrast to lecture based learning in exerimental course,to evaluate teaching effect by analyzing questionnaire survey associated examination results.It is shown that PBL and case-based teaching can get good teaching effect.

AIM : To explore the effects of ASODN targeting survivin on apoptosis in HL 60 cells. METHODS : The cell proliferation was tested by MTT assay, the cell morphological transformation was observed by inverted microscope, the cell apoptosis index was examined by TUNEL, the cell apoptosis rate was precisely detected by flow cytometry, and the expression of survivin mRNA was detected by reverse transcriptase PCR. RESULTS : 5-20 ?mol?L -1 of survivin ASODN showed obviously inhibitory effect on the cell proliferation of HL 60 cells, and the inhibitory effect correlated with time and dosage. The cell apoptosis rate and the expression inhibitory rate of survivin gene in ASODN groups were obviously higher than that in the control group. Effects of antisense oligonucleotide targeting survivin on apoptosis in HL 60 cells$$$$ QI Shi mei, BI Fu yong Department of Biochemistry, Wannan Medical College, Wuhu 241001, Anhui, China ABSTRACT AIM : To explore the effects of ASODN targeting survivin on apoptosis in HL 60 cells. METHODS : The cell proliferation was tested by MTT assay, the cell morphological transformation was observed by inverted microscope, the cell apoptosis index was examined by TUNEL, the cell apoptosis rate was precisely detected by flow cytometry, and the expression of survivin mRNA was detected by reverse transcriptase PCR. RESULTS : 5-20 ?mol?L -1 of survivin ASODN showed obviously inhibitory effect on the cell proliferation of HL 60 cells, and the inhibitory effect correlated with time and dosage. The cell apoptosis rate and the expression inhibitory rate of survivin gene in ASODN groups were obviously higher than that in the control group. [WTHZ CONCLUSION : ASODN targeting survivin can effectively inhibit the expression of survivin mRNA and induce the cell apoptosis, and it indicates that survivin plays an important role in maintaining the proliferation of tumor cells.

Survivin has been identified recently as a unique member of the inhibitor of apoptosis protein family. It is expressed during fetal development and in all common human cancers, but not in normal tissues. It can inhibit apoptosis induced by a variety of factors and play an important role during angiogenesis. Being a universal tumor-specific antiapoptosis inhibitor, survivin may serve as a potential target for gene-protein-based therapy of tumor.

AIM: Studying the relation between telomerase activity and chronic myelocytic leukeed(CML) courses by detect telomerase activity(TMA) Of mononuclear cells of bone marrow samples in different CML phases. METHOD: Using telomerase PCR - ELISA method. RESULTS: Telomelase activity of nounal bone marrow is 9. 85 ?0.68, CML chronic phase is 24.48 ?12. 73 which is significantly higher than that of normal bone marrow(P 0.05), at remisson TMA is 18. 12? 6.27 which is shil higher than normal group (P