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The Effects of Myo-inositol and Probiotic Supplementation in a High Fat Fed Preclinical Model of Glucose Intolerance in Pregnancy

  • J. F. Plows (a1) (a2), J. M. Ramos Nieves (a3), F. Budin (a3), K. Mace (a3), C. M. Reynolds (a1), M. H. Vickers (a1), I. Silva-Zolezzi (a4), P. N. Baker (a1) (a5) and J. L. Stanley (a1)...

Abstract

Glucose intolerance during pregnancy – a major driver of gestational diabetes mellitus (GDM) – has significant short and long-term health consequences for both the mother and child. As GDM prevalence continues to escalate, there is growing need for preventative strategies. There is limited but suggestive evidence that myo-inositol (MI) and probiotics (PB) could improve glucose tolerance during pregnancy. This study tested the hypothesis that MI and/or PB supplementation would reduce the risk of glucose intolerance during pregnancy. Female C57BL/6 mice were randomised to receive either no treatment, MI, PB (Lactobacillusrhamnosus and Bifidobacteriumlactis), or both (MIPB) for five weeks. They were then provided with high fat diet (HFD) for one week before mating commenced and throughout mating/gestation, while remaining on their respective treatments. An oral glucose tolerance test occurred at gestational day (GD) 16.5 and tissue collection at GD18.5. Neither MI or PB, separately or combined, improved glucose tolerance. However, MI and PB both independently increased adipose tissue expression of Ir, Irs1, Akt2, and Pck1, and PB also increased Pparγ. MI was associated with reduced gestational weight gain, whilst PB was associated with increased maternal fasting glucose, total cholesterol and pancreas weight. These results suggest that MI and PB may improve insulin intracellular signalling in adipose tissue but this did not translate to meaningful differences in glucose tolerance. The absence of fasting hyperglycaemia or insulin resistance suggests this is a very mild model of GDM, which may have affected our ability to assess the impact of these nutrients.

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Copyright

Corresponding author

*Corresponding authors: Mark H. Vickers, email m.vickers@auckland.ac.nz; P. N. Baker, email: philip.baker@le.ac.uk

Keywords

The Effects of Myo-inositol and Probiotic Supplementation in a High Fat Fed Preclinical Model of Glucose Intolerance in Pregnancy

  • J. F. Plows (a1) (a2), J. M. Ramos Nieves (a3), F. Budin (a3), K. Mace (a3), C. M. Reynolds (a1), M. H. Vickers (a1), I. Silva-Zolezzi (a4), P. N. Baker (a1) (a5) and J. L. Stanley (a1)...

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