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Early nutritional determinants of intrahepatocellular lipid deposition in preterm infants at term age

International Journal of Obesity volume 37, pages 500–504 (2013)Cite this article

Subjects

Abstract

Background:

We have previously shown that by term age, preterm infants have elevated intrahepatocellular lipid (IHCL) content and altered regional adiposity, both of which are risk factors for cardiometabolic illness in adult life. Preterm nutritional intake is a plausible determinant of these aberrant trajectories of development.

Objective:

We aimed to establish if macronutritional components of the preterm diet were determinants of IHCL deposition measured at term equivalent age, using 1H Magnetic Resonance spectroscopy (MRS).

Methods:

Prospective observational case–control study in a single UK neonatal unit. 1H MR spectra were acquired from 18 preterm infants (<32 weeks gestational age at birth) at term age and 31 healthy term infants, who acted as a control group. Neonatal nutritional information was collected from birth to 34+6 weeks postmenstrual age.

Results:

IHCL (median, interquartile range) was significantly higher in preterm-at-term infants compared with term-born infants: 0.735, 0–1.46 versus 0.138, 0–0.58; P=0.003. In preterm infants, IHCL was positively correlated with lipid intake in the first week of life (r=0.52, P=0.04).

Conclusions:

This study confirms our previous observation of elevated IHCL in preterm infants at term and suggests that early lipid intake may be a determinant. Future work is warranted to establish the clinical relevance and the role of nutritional intervention in attenuating or exacerbating this effect in preterm infants.

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Acknowledgements

We acknowledge the parents and patients for agreeing to participate in this study, support by grants from Medical Research Council UK and Chelsea and Westminster Hospital NHS Foundation Trust and the infrastructure support from the NIHR Biomedical Research Centre funding scheme at Imperial College London. This work was supported by grants from Medical Research Council UK and Chelsea and Westminster Hospital NHS Foundation Trust.

Author contributions

VV, NM, JDB designed the study, VV conducted research, collected and analysed nutritional data, GD provided MR imaging support, ELT analysed IHCL data, VV performed statistical analysis, VV, ELT, GD, MJH, JDB, NM wrote and edited the manuscript. All authors read and approved the final manuscript.

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Authors and Affiliations

  1. Department of Medicine, Section of Neonatal Medicine, Imperial College London, Chelsea and Westminster Campus, London, UK

    V Vasu, M J Hyde & N Modi

  2. Metabolic and Molecular Imaging Group, MRC Clinical Sciences Centre, Hammersmith Hospital, Imperial College, London, UK

    E L Thomas, G Durighel & J D Bell

Authors
  1. V Vasu
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  2. E L Thomas
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  3. G Durighel
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  4. M J Hyde
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  5. J D Bell
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Correspondence to V Vasu.

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Vasu, V., Thomas, E., Durighel, G. et al. Early nutritional determinants of intrahepatocellular lipid deposition in preterm infants at term age. Int J Obes 37, 500–504 (2013). https://doi.org/10.1038/ijo.2012.213

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