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ORIGINAL ARTICLE
Minerva Biotecnologica 2020 December;32(4):165-74
DOI: 10.23736/S1120-4826.20.02687-7
Copyright © 2020 EDIZIONI MINERVA MEDICA
language: English
Identification and analysis of key regulatory genes associated with pre-eclampsia: a systems biology approach
Lin LIN, Xiaoqian LIN, Zhaodong LIU, Huale ZHANG, Qing HAN, Rongxin CHEN, Lichun CHEN, Jianying YAN ✉
Department of Obstetrics, Fujian Provincial Maternity and Children Hospital, the Affiliated Hospital of Fujian Medical University, Fuzhou, China
BACKGROUND: Pre-eclampsia is a disorder marked by hypertension during pregnancy that is a leading cause of maternal and infant morbidity, mortality, and premature births worldwide. Pre-eclampsia is thought to result from a poor placental perfusion of unclear causes. Gene expression profiles of placenta-associated genes have been shown to be altered in patients with pre-eclampsia, but the actual regulators remain unknown. We aimed to identify and analyze key regulatory genes associated with pre-eclampsia.
METHODS: In this paper, we analyzed the gene expression profiles of placentas of women with first-trimester pre-eclampsia to identify key regulators; in addition, we performed protein-protein interaction, gene ontology (GO) enrichment, and pathway analyses.
RESULTS: After applying log fold-change statistics, we found 231 differentially expressed genes (DEGs) between normal and pre-eclampsia placentas. We confirmed through downstream analyses that these genes are associated with CYP-mediated steroid metabolism and hydroxylation in pregnancy, with glucuronidation and hyperbilirubinemia, and with other biological pathways.
CONCLUSIONS: The identified DEGs associated with pre-eclampsia may be targeted in studies to clarify the pathogenesis of this condition.
KEY WORDS: Pre-eclampsia; Microarray analysis; Genome-wide association study