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Maternal Body Mass Index Is Associated with Profile Variation in Circulating MicroRNAs at First Trimester of Pregnancy

Authors :
Kathrine Thibeault
Cécilia Légaré
Véronique Desgagné
Frédérique White
Andrée-Anne Clément
Michelle S. Scott
Pierre-Étienne Jacques
Renée Guérin
Patrice Perron
Marie-France Hivert
Luigi Bouchard
Source :
Biomedicines, Vol 10, Iss 7, p 1726 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

Many women enter pregnancy with overweight and obesity, which are associated with complications for both the expectant mother and her child. MicroRNAs (miRNAs) are short non-coding RNAs that regulate many biological processes, including energy metabolism. Our study aimed to identify first trimester plasmatic miRNAs associated with maternal body mass index (BMI) in early pregnancy. We sequenced a total of 658 plasma samples collected between the 4th and 16th week of pregnancy from two independent prospective birth cohorts (Gen3G and 3D). In each cohort, we assessed associations between early pregnancy maternal BMI and plasmatic miRNAs using DESeq2 R package, adjusting for sequencing run and lane, gestational age, maternal age at the first trimester of pregnancy and parity. A total of 38 miRNAs were associated (FDR q < 0.05) with BMI in the Gen3G cohort and were replicated (direction and magnitude of the fold change) in the 3D cohort, including 22 with a nominal p-value < 0.05. Some of these miRNAs were enriched in fatty acid metabolism-related pathways. We identified first trimester plasmatic miRNAs associated with maternal BMI. These miRNAs potentially regulate fatty acid metabolism-related pathways, supporting the hypothesis of their potential contribution to energy metabolism regulation in early pregnancy.

Details

Language :
English
ISSN :
22279059
Volume :
10
Issue :
7
Database :
Directory of Open Access Journals
Journal :
Biomedicines
Publication Type :
Academic Journal
Accession number :
edsdoj.99b2f5efb738465990a8314c22eb3e4b
Document Type :
article
Full Text :
https://doi.org/10.3390/biomedicines10071726