1.Noninvasive assessment of cirrhotic portal hypertension
Xuechun MU ; Yu WANG ; Hong MA
Journal of Clinical Hepatology 2019;35(12):2796-2799
Hepatic venous pressure gradient (HVPG) is the gold standard for the degree of cirrhotic portal hypertension and has limited use in clinical application, and therefore, there is an urgent need for noninvasive assessment methods for portal hypertension. This article introduces various serological, imaging, and elastography methods and combined diagnostic models and elaborates on the current research results and the advantages and disadvantages of each method. It is pointed out that in future, noninvasive diagnostic techniques may play a greater role in screening, monitoring, and risk stratification of patients with cirrhotic portal hypertension.
2.Exploring differentially expressed genes related to metabolism by RNASeq in porcine embryonic fibroblast after insulin treatment
Yingjuan LIANG ; Jinpeng WANG ; Xinyu LI ; Shuang WU ; Chaoqian JIANG ; Yue WANG ; Xuechun LI ; Zhong-Hua LIU ; Yanshuang MU
Journal of Veterinary Science 2022;23(6):e90-
Background:
Insulin regulates glucose homeostasis and has important effects on metabolism, cell growth, and differentiation. Depending on the cell type and physiological context, insulin signal has specific pathways and biological outcomes in different tissues and cells. For studying the signal pathway of insulin on glycolipid metabolism in porcine embryonic fibroblast (PEF), we used high-throughput sequencing to monitor gene expression patterns regulated by insulin.
Objectives:
The goal of our research was to see how insulin affected glucose and lipid metabolism in PEFs.
Methods:
We cultured the PEFs with the addition of insulin and sampled them at 0, 48, and 72 h for RNA-Seq analysis in triplicate for each time point.
Results:
At 48 and 72 h, 801 and 1,176 genes were differentially expressed, respectively. Of these, 272 up-regulated genes and 264 down-regulated genes were common to both time points. Gene Ontology analysis was used to annotate the functions of the differentially expressed genes (DEGs), the biological processes related to lipid metabolism and cell cycle were dominant. And the DEGs were significantly enriched in interleukin-17 signaling pathway, phosphatidylinositol-3-kinase-protein kinase B signaling pathway, pyruvate metabolism, and others pathways related to lipid metabolism by Kyoto Encyclopedia of Genes and Genomes enrichment analysis.
Conclusions
These results elucidate the transcriptomic response to insulin in PEF. The genes and pathways involved in the transcriptome mechanisms provide useful information for further research into the complicated molecular processes of insulin in PEF.