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Using RNA sequencing to identify a putative miRNA network in placenta accreta spectrum

ABSTRACT: A total of 185 miRNAs were differentially expressed between PAS and control groups. Integrated the lncRNA/miRNA interactions with the miRNA/mRNA interactions, a ceRNA network was constructed.

ORGANISM(S): Homo sapiens

PROVIDER: GSE211001 | GEO | 2025/08/04

REPOSITORIES: GEO

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Project description:BackgroundPlacenta accreta spectrum (PAS) is a rare, life-threatening complication of pregnancy. Predicting PAS severity is critical to individualise care planning for the birth. We aim to explore whether radiomic analysis of T2-weighted magnetic resonance imaging (MRI) can predict severe cases by distinguishing between histopathological subtypes antenatally.MethodsThis was a bi-centre retrospective analysis of a prospective cohort study conducted between 2018 and 2022. Women who underwent MRI during pregnancy and had histological confirmation of PAS were included. Radiomic features were extracted from T2-weighted images. Univariate regression and multivariate analyses were performed to build predictive models to differentiate between non-invasive (International Federation of Gynecology and Obstetrics [FIGO] grade 1 or 2) and invasive (FIGO grade 3) PAS using R software. Prediction performance was assessed based on several metrics including sensitivity, specificity, accuracy and area under the curve (AUC) at receiver operating characteristic analysis.ResultsForty-one women met the inclusion criteria. At univariate analysis, 0.64 sensitivity (95% confidence interval [CI] 0.0-1.00), specificity 0.93 (0.38-1.0), 0.58 accuracy (0.37-0.78) and 0.77 AUC (0.56-.097) was achieved for predicting severe FIGO grade 3 PAS. Using a multivariate approach, a support vector machine model yielded 0.30 sensitivity (95% CI 0.18-1.0]), 0.74 specificity (0.38-1.00), 0.58 accuracy (0.40-0.82), and 0.53 AUC (0.40-0.85).ConclusionOur results demonstrate a predictive potential of this machine learning pipeline for classifying severe PAS cases.Relevance statementThis study demonstrates the potential use of radiomics from MR images to identify severe cases of placenta accreta spectrum antenatally.Key points• Identifying severe cases of placenta accreta spectrum from imaging is challenging. • We present a methodological approach for radiomics-based prediction of placenta accreta. • We report certain radiomic features are able to predict severe PAS subtypes. • Identifying severe PAS subtypes ensures safe and individualised care planning for birth.

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Using RNA sequencing to identify a putative miRNA network in placenta accreta spectrum

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