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360 Sex Differences in Adipose Tissue Quantity and Distribution in Newborn Infants
  1. KM Logan,
  2. MJ Hyde,
  3. C Gale,
  4. JR Parkinson,
  5. S Jeffries,
  6. N Modi
  1. Neonatal Medicine, Imperial College London, London, UK

Abstract

Background and Aims Adipose tissue (AT) quantity and distribution influence metabolic health. In adult life women have greater total and subcutaneous AT, but men have greater internal abdominal AT (Gender Medicine, 2009; 6: 60–75). We aimed to explore AT volume and distribution in newborn male and female infants using magnetic resonance imaging (MRI).

Methods A retrospective observational study was performed, using an existing database of neonatal body composition data, to compare male and female healthy term infants.

Abstract 360 Table 1

Anthropometry at scan in male and female infants

Abstract 360 Table 2

AT volume in male and female infants

Conclusions Female newborn infants have higher total and subcutaneous AT, but similar internal abdominal AT compared to males. Longitudinal study is required to assess gender specific alterations in AT distribution during infancy and childhood, and may identify possible influences of internal abdominal AT development in males.

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