1.Comparison of different scoring systems evaluating short-term prognosis of patients with hepatitis B associated acute hepatic failure
Lei LIU ; Fengmei WAGN ; Zhichao KAN ; Yan LI ; Shixiang XIAO ; Hua LIU ; Ying LI
The Journal of Practical Medicine 2014;(4):571-573
Objective To assessment short-term prognosis in patients with acute on chronic liver failure , several scoring systems were compared. Methods Two hundred and sixteen patients with acute on chronic liver failure were divided into survival group and death group according to the results of 90 days after admission.CTP , MELD,APACHEⅡ, SOFA and SMSVH score were calculated.After ROC curves were performed ,the areas under the curves of these scoring systems were compared. Results The areas under the ROC curves of MELD, APACHEⅡ, SOFA, CTP and SMSVH were 0.88, 0.76, 0.89,0.79and 0.69,respectively. The areas under the curves of SOFA and MELD were larger than the APACHEⅡ, CTP and SMSVH (P<0.05). There was no difference between the SOFA and MELD (P>0.05). The area under the curve of CTP was larger than the APACHEⅡ, but there was no statistically significant difference (P > 0.05). The area under the curve of SMSVH were less than 0.7. Conclusions The SOFA, MELD,CTP and APACHEⅡcan predict the short-term prognosis of acute on chronic liver failure. The SOFA and MELD are the best scoring systems.CTP,APACHEⅡ are better than SMSVH. SMSVH fail to predict the prognosis of acute on chronic liver failure.
2.Genomic distribution of AML1-ETO fusion protein binding sites.
Miao-Miao HE ; Jian-Tao SHI ; Xue-Hua ZHU ; Wen JIN ; Ping WANG ; Ji ZHANG ; Kan-Kan WAGN
Journal of Experimental Hematology 2010;18(3):553-558
This study was purposed to characterize the genomic distribution of the binding sites for AML1-ETO fusion protein on chromosome 2, 9 and 19, and to further gain insights into the characteristics of transcriptional regulation by AML1-ETO in acute myeloid leukemia so as to provide theoretical basis for the development of targeted therapy and optimization for treatment. Chromatin immunoprecipitation (ChIP) coupled with high density tiling arrays (chip), also known as ChIP-chip, was utilized in this study. ChIP-DNA enriched by an anti-ETO antibody and total genomic DNA of Kasumi cells were hybridized to tiling arrays, tiled through chromosome 2, 9 and 19. The ChIP enriched regions were identified using a model based analytical tool (MAT). Genomic distribution of the ChIP regions was analyzed using publicly available CEAS web server. The Gene Ontology (GO) enrichment analysis was performed to excavated the biological significance. The results indicated that a total of 588 enriched regions were identified on chromosome 2, 9 and 19 by the anti-ETO antibody. A number of the identified regions were located within enhancers (48.86%) or introns (37.35%), much smaller fractions were within proximal promoters (5.96%) or exons (5.49%). Functional enrichment analysis showed that cell proliferation and signal transduction biological pathways were enriched in potential genes of AML-ETO. It is concluded that half of the AML1-ETO binding sites are located within known transcriptional regulatory regions (promoter, 5' UTR and enhancer), while almost another half were within the sequences which were not previously reported as regulatory regions. The potential target molecular network of AML1-ETO is involved in several essential biological processes.
Base Sequence
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Binding Sites
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Cell Line, Tumor
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Chromosomes, Human, Pair 21
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Chromosomes, Human, Pair 8
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Core Binding Factor Alpha 2 Subunit
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genetics
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metabolism
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DNA-Binding Proteins
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metabolism
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Genome, Human
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Humans
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Leukemia, Myeloid, Acute
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genetics
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Oncogene Proteins, Fusion
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genetics
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metabolism
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Promoter Regions, Genetic
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RUNX1 Translocation Partner 1 Protein
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Translocation, Genetic