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research
Dysregulated placental microRNAs in Early and Late onset Preeclampsia
Authors
Maria Braoudaki
Aggeliki Kolialexi
+7 more
George I Lambrou
Alexandra Lykoudi
Ariadni Mavrou
George Konstantinos Papaioanou
Nikolas Papantoniou
Charalampos Siristatidis
Maria Tzetis
Publication date
1 January 2018
Publisher
'Elsevier BV'
Doi
Cite
Abstract
Copyright © 2017. Published by Elsevier Ltd.INTRODUCTION: To determine the miRNA expression profile in placentas complicated by Preeclampsia (PE) and compare it to uncomplicated pregnancies. METHODS: Sixteen placentas from women with PE, [11 with early onset PE (EOPE) and 5 with late onset PE (LOPE)], as well as 8 placentas from uncomplicated pregnancies were analyzed using miRNA microarrays. For statistical analyses the MATLAB® simulation environment was applied. The over-expression of miR-518a-5p was verified using Quantitative Real-Time Polymerase Chain Reaction. RESULTS: Forty four miRNAs were found dysregulated in PE complicated placentas. Statistical analysis revealed that miR-431, miR-518a-5p and miR-124* were over-expressed in EOPE complicated placentas as compared to controls, whereas miR-544 and miR-3942 were down-regulated in EOPE. When comparing the miRNA expression profile in cases with PE and PE-growth restricted fetuses (FGR), miR-431 and miR-518a-5p were found over-expressed in pregnancies complicated by FGR. DISCUSSION: Since specific miRNAs can differentiate EOPE and LOPE from uncomplicated placentas, they may be considered as putative PE-specific biomarkers. MiR-518a-5p emerged as a potential diagnostic indicator for EOPE cases as well as for PE-FGR complicated placentas, indicating a potential link to the severity of the disease.Peer reviewe
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University of Hertfordshire Research Archive
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oai:uhra.herts.ac.uk:2299/2236...
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University of Hertfordshire Research Archive
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University of Hertfordshire Research Archive
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info:doi/10.1016%2Fj.placenta....
Last time updated on 12/01/2021