The Effect and Mechanism of Novel Telomerase Inhibitor Nilo 22 on Leukemia Cells / 中国实验血液学杂志

OBJECTIVE@#To investigate the cytotoxic effect and its mechanism of the micromolecule compound on the leukemia cells.@*METHODS@#The cytotoxic effects of 28 Nilotinib derivatives on K562, KA, KG, HA and 32D cell lines were detected by MTT assays, and the compound Nilo 22 was screen out. Cell apoptosis and cell cycle on leukemia cells were detected by flow cytometry. The effect of compound screened out on leukemogenesis potential of MLL-AF9 leukemia mice GFP@*RESULTS@#Nilo 22 serves as the most outstanding candidate out of 28 Nilotinib derivatives, which impairs leukemia cell lines, but spares normal hematopoietic cell line. Comparing with Nilotinib, Nilo 22 could induce the apoptosis of GFP@*CONCLUSION@#Nilo 22 shows a significant cytotoxic effect on mice and human leukemia cells, especially for drug resistance cells. Nilo 22 is a promising anti-leukemia agent to solve the common clinical problems of drug resistance and relapse of leukemia.

Meta-analysis of randomized controlled trials of sodium hyaluronate eye drops treating dry eye / 中华实验眼科杂志

Background Some researching results of sodium hyaluronate eye drops treating dry eye have been reported home and abroad.To evaluate these results using the method of evidence-based medicine (EBM) has an important clinical significance.Objective This secondary study was to systematically evaluate the efficacy of sodium hyaluronate eye drops for the treatment of dry eye.Methods Meta analysis was adopted in this study.The electronic bibliographic databases were searched according to the prescribed strategy,including Medline,PubMed,VIP,CBM,CNKI,Wanfang Data using the method of Cochrane systematic review.The literature published time was limited from the commencement of each database to December,2011.Randomized controlled trials (RCTs) of sodium hyaluronate eye drops treating dry eye were included and the methodological quality of the RCTs was assessed by two evaluators using Jadad measuring scale,and homogeneous evaluation by Meta-analysis was performed.Statistical analysis of clinical data was performed using RevMan 5.0 software provided by the Cochrane Collaboration.With odds ratio (OR) value as the effect index,the randomized effect model was used to analyze the clinical heterogeneity.Results A total of 4 RCTs involving 686 patients were included.Jadad scale evaluation showed 7 points in 2 literature,4 points in 1 literature and 2 points in 1 literature.In all the RCTs,344 patients with dry eye were treated using sodium hyaluronate as the sodium hyaluronate eye drops group,and 342 dry eyes applied placebo,normal saline solution,hydroxymethyl cellulose,hydroxypropyl methyl cellulose respectively as the control group.Meta-analysis indicated that the total effective rate (OR) was 2.55 with the 95％ confidence interval (CI) 0.94-6.93.The symptoms were improved in 183 cases in the experiment group and 130 cases in the control group.No significant difference was found in the OR between the sodium hyaluronate eye drops group and the control group (Z =1.84,P=0.07).Conclusions Meta-analysis indicates that sodium hyaluronate eye drops can improve the symptom of dry eye,but have no significence with the control group.However,owing to fewer number and uneven quality of included RCTs,the large sample size and multicenter of RCTs is still needed to verify the superiority of sodium hyaluronate eye drops for dry eye.