title: Connections Between the Gut Microbiome and Metabolic Hormones in Early Pregnancy in Overweight and Obese Women.
abstract: Overweight and obese women are at a higher risk for gestational diabetes mellitus. The gut microbiome could modulate metabolic health and may affect insulin resistance and lipid metabolism. The aim of this study was to reveal relationships between gut microbiome composition and circulating metabolic hormones in overweight and obese pregnant women at 16 weeks' gestation. Fecal microbiota profiles from overweight (n = 29) and obese (n = 41) pregnant women were assessed by 16S rRNA sequencing. Fasting metabolic hormone (insulin, C-peptide, glucagon, incretin, and adipokine) concentrations were measured using multiplex ELISA. Metabolic hormone levels as well as microbiome profiles differed between overweight and obese women. Furthermore, changes in some metabolic hormone levels were correlated with alterations in the relative abundance of specific microbes. Adipokine levels were strongly correlated with Ruminococcaceae and Lachnospiraceae, which are dominant families in energy metabolism. Insulin was positively correlated with the genus Collinsella. Gastrointestinal polypeptide was positively correlated with the genus Coprococcus but negatively with family Ruminococcaceae This study shows novel relationships between gut microbiome composition and the metabolic hormonal environment in overweight and obese pregnant women at 16 weeks' gestation. These results suggest that manipulation of the gut microbiome composition may influence pregnancy metabolism.
authors.affiliation: School of Medicine, The University of Queensland, Brisbane, Queensland, Australia The University of Queensland Centre for Clinical Research, Brisbane, Queensland, Australia.
authors.forename: Luisa F
authors.initials: LF
authors.lastname: Gomez-Arango
authors.affiliation: School of Medicine, The University of Queensland, Brisbane, Queensland, Australia The University of Queensland Centre for Clinical Research, Brisbane, Queensland, Australia Obstetric Medicine, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.
authors.forename: Helen L
authors.initials: HL
authors.lastname: Barrett
authors.affiliation: School of Medicine, The University of Queensland, Brisbane, Queensland, Australia Mater Research, The University of Queensland, Brisbane, Queensland, Australia.
authors.forename: H David
authors.initials: HD
authors.lastname: McIntyre
authors.affiliation: School of Medicine, The University of Queensland, Brisbane, Queensland, Australia The University of Queensland Centre for Clinical Research, Brisbane, Queensland, Australia Obstetric Medicine, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.
authors.forename: Leonie K
authors.initials: LK
authors.lastname: Callaway
authors.affiliation: Faculty of Medicine and Biomedical Sciences, The University of Queensland Diamantina Institute, Brisbane, Queensland, Australia.
authors.forename: Mark
authors.initials: M
authors.lastname: Morrison
authors.affiliation: School of Medicine, The University of Queensland, Brisbane, Queensland, Australia The University of Queensland Centre for Clinical Research, Brisbane, Queensland, Australia m.dekker@uq.edu.au.
authors.forename: Marloes
authors.identifier: 0000-0002-1909-8920
authors.initials: M
authors.lastname: Dekker Nitert
mesh_terms: D054392:Adipokines / Q000235:genetics / Q000378:metabolism; D000328:Adult; D001786:Blood Glucose / Q000378:metabolism; D002096:C-Peptide / Q000378:metabolism; D004734:Energy Metabolism / Q000235:genetics / Q000502:physiology; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D000069196:Gastrointestinal Microbiome / Q000502:physiology*; D005865:Gestational Age; D006801:Humans; D007328:Insulin / Q000378:metabolism; D009765:Obesity / Q000378:metabolism* / Q000503:physiopathology*; D050177:Overweight / Q000378:metabolism* / Q000382:microbiology*; D011247:Pregnancy; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D045857:Ruminococcus / Q000502:physiology
chemical_list: D054392:Adipokines; D001786:Blood Glucose; D002096:C-Peptide; D007328:Insulin; D012336:RNA, Ribosomal, 16S