Predictive Ability of Preoperative PT-INR and Postoperative MCP1 for Post-hepatectomy Liver Failure
IN VIVO
Authors: Arisaka, Sayaka; Matsuyama, Ryusei; Goto, Koki; Suwa, Yusuke; Mori, Ryutaro; Morioka, Daisuke; Taguri, Masataka; Endo, Itaru
Abstract
Background: We sought a diagnostic tool using perioperative variables that might predict post-hepatectomy liver failure (PHLF). Patients and Methods: In 68 patients undergoing major hepatectomy, data on inflammatory markers and coagulation factors were prospectively collected and were compared between patients with International Study Group of Liver Surgery definition grade B/C PHLF (LF group) and those without LF (non-LF group). Results: Preoperatively, the LF group (n=9; 13.2%) had a lower platelet count and a disintegrin-like and metalloproteinase with thrombospondin type 1 motifs 13 (ADAMTSJ3) activity and a higher prothrombin time-International Normalized Ratio (PT-INR) than the non-LF group. On postoperative day 1, the LF group had significantly higher serum interleukin 6 (IL6), C-C motif chemokine ligand 2 (CCL2), and IL10 levels than the non-LF group. The logistic regression model that included preoperative PT-INR and CCL2 on postoperative day 1 predicted grade B/C PHLF with 100% sensitivity and 89.8% specificity. Conclusion: Our findings suggest that the combination of preoperative PT-INR and CCL2 on postoperative day 1 can predict PHLF earlier and precisely after major hepatectomy.
Assessment of the Microbiome Role in Skin Protection Against UV Irradiation Via Network Analysis
JOURNAL OF LASERS IN MEDICAL SCIENCES
Authors: Heidari, Mohammad Hossein; Razzaghi, Mohammadreza; Baghban, Alireza Akbarzadeh; Rostami-Nejad, Mohammad; Rezaei-Tavirani, Mostafa; Azodi, Mona Zamanian; Zali, Alireza; Ahmadzadeh, Alireza
Abstract
Introduction: Diverse microbiotas which have some contributions to gene expression reside in human skin. To identify the protective role of the skin microbiome against UV exposure, protein-protein interaction (PPI) network analysis is used to assessment gene expression alteration. Methods: A microarray dataset, GEO accession number GSE117359, was considered in this respect. Differential expressed genes (DEGs) in the germ-free (GF) and specific pathogen-free (SPF) groups are analyzed by GEO2R. The top significant DEGs were assigned for network analysis via Cytoscape 3.7.2 and its applications. Results: A total of 28 genes were identified as significant DEGs and the centrality analysis of the network indicated that only one of the seven hub-bottlenecks was from queried genes. The gene ontology analysis of Il6, Cxcl2, Cxcl1, TNF, Il10, Cxcl10, and Mmp9 showed that the crucial genes were highly enriched in the immune system. Conclusion: The skin microbiome plays a significant role in the protection of skin against UV irradiation and the role of TNF and IL6 is prominent in this regard.