ABSTRACT
Liver fibrosis is a common pathological process in the progression of various chronic liver diseases to liver cirrhosis and liver cancer, and liver biopsy with the highest accuracy in diagnosis cannot be used as a routine examination due to several drawbacks. This article introduces several serological and imaging methods used in clinical practice and analyzes their advantages/disadvantages and the current status of research. It is believed that thanks to the efforts of experts and scholars, noninvasive diagnostic methods have become more and more important and may replace liver biopsy and become an effective method for the diagnosis of liver fibrosis in the near future.
ABSTRACT
Objective:This paper aims to bioinformatically analyze the target genes of miR-29b and to provide clues for cancer research targeting miR-29b. Methods:The differential expression levels of miRNAs in CD133+and CD133-A549 cells were detected using the miRNA PCR chip. Real-time polymerase chain reaction was performed to verify the partially differential expression of miR-NAs. Target genes of miR-29b were predicted by miRecords and analyzed by gene ontology and signal transduction pathway enrich-ment analysis. Results: The miR-29b expression was significantly decreased in the CD133+A549 cells compared with that in the CD133-cells. The number of miR-29b target genes was 106. The functions of these target genes were enriched in binding and extracel-lular matrix structural constituent (P<0.01). The JAK-STAT and TGF-βsignal transduction pathways were significantly enriched (P<0.05). Conclusion:The abnormal expression of miR-29b may be related to metastasis. Some of the predicted target genes of miR-29b were significantly enriched in the signaling pathways in relation to the tumors.