Characterization of Maternal Circulating MicroRNAs in Obese Pregnancies and Gestational Diabetes Mellitus

Maternal obesity (MO) is expanding worldwide, contributing to the onset of Gestational Diabetes Mellitus (GDM). MO and GDM are associated with adverse maternal and foetal outcomes, with short- and long-term complications. Growing evidence suggests that MO and GDM are characterized by epigenetic alte...

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Bibliographic Details
Published in:Antioxidants 2023-02, Vol.12 (2), p.515
Main Authors: Serati, Anaïs, Novielli, Chiara, Anelli, Gaia Maria, Mandalari, Maria, Parisi, Francesca, Cetin, Irene, Paleari, Renata, Mandò, Chiara
Format: Article
Language:English
Subjects:
circulating miRNA
Comorbidity
Data acquisition
Data analysis
Data processing
Diabetes in pregnancy
Diabetes mellitus
Epigenetics
Genetic aspects
Gestational diabetes
gestational diabetes mellitus
Health aspects
maternal epigenetics
maternal obesity
Metabolic disorders
Metabolic pathways
Metabolism
MicroRNA
MicroRNAs
miRNA
Obesity
Oxidative stress
Parametric statistics
Plasma
Pregnancy
Pregnancy complications
Statistical analysis
Statistical significance
Womens health
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Summary:Maternal obesity (MO) is expanding worldwide, contributing to the onset of Gestational Diabetes Mellitus (GDM). MO and GDM are associated with adverse maternal and foetal outcomes, with short- and long-term complications. Growing evidence suggests that MO and GDM are characterized by epigenetic alterations contributing to the pathogenesis of metabolic diseases. In this pilot study, plasma microRNAs (miRNAs) of obese pregnant women with/without GDM were profiled at delivery. Nineteen women with spontaneous singleton pregnancies delivering by elective Caesarean section were enrolled: seven normal-weight (NW), six obese without comorbidities (OB/GDM(-)), and six obese with GDM (OB/GDM(+)). miRNA profiling with miRCURY LNA PCR Panel allowed the analysis of the 179 most expressed circulating miRNAs in humans. Data acquisition and statistics (GeneGlobe and SPSS software) and Pathway Enrichment Analysis (PEA) were performed. Data analysis highlighted patterns of significantly differentially expressed miRNAs between groups: OB/GDM(-) vs. NW: = 4 miRNAs, OB/GDM(+) vs. NW: = 1, and OB/GDM(+) vs. OB/GDM(-): = 14. For each comparison, PEA revealed pathways associated with oxidative stress and inflammation, as well as with nutrients and hormones metabolism. Indeed, miRNAs analysis may help to shed light on the complex epigenetic network regulating metabolic pathways in both the mother and the foeto-placental unit. Future investigations are needed to deepen the pregnancy epigenetic landscape in MO and GDM.
ISSN:2076-3921
2076-3921
DOI:10.3390/antiox12020515