Cited by 13Cholesterol and Lipid MetabolismInfant Nutrition and HealthLipid metabolism and disorders

Plasma Cholesterol and Lathosterol Levels in Term Infants in the Early Neonatal Period

Hamilton, J J, Synnes, A, Innis, S M·1992·Pediatric Research

Abstract

Plasma cholesterol concentrations increase after birth. Whether this is due to increased cholesterol synthesis has not been reported. Additionally, it is not known if formulas, which lack cholesterol, result in higher rates of cholesterol synthesis than feeding breast milk. To address this, plasma lathosterol (quantitated by gas chromatography), a potential indicator of cholesterol synthesis, was measured in term infants at birth (cord) and 4 d of age fed either formula or breast milk (n = 6 each), normal adults (n = 6) at the expected nadir and peak of the diurnal rhythm (1700 h and 0830 h), and cholestyramine-treated hypercholesterolemic adults (n = 6). Plasma cholesterol and apo B increased, and apo AI (measured by immunoprecipitation) did not change over the first 4 d of life. The increase in plasma cholesterol was greater in the formula-fed infants compared with breast-fed infants. The plasma lathosterol concentrations (mumol/L) and the lathosterol:cholesterol ratios (10(2) x mmol lathosterol/mol cholesterol) decreased from birth to 4 d of age by 12 and 36%, respectively, in the breast-fed infants and by 20 and 46%, respectively, in formula-fed infants. The infant plasma lathosterol concentrations, however, were not different from normal adult levels [1700 h: 5.50 +/- 1.52 (SD); 0830 h: 6.18 +/- 1.80], but were lower than those of cholestyramine-treated adults (20.48 +/- 13.41). Sterol ratios of infants were higher than those of normal adults (1700 h: 112.5 +/- 26.0; 0830 h: 129.4 +/- 42.2), but not different from those of cholestyramine-treated adults (322.9 +/- 168.4).(ABSTRACT TRUNCATED AT 250 WORDS)

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Crossref · 10.1203/00006450-199204000-00018

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Authors
Hamilton, J. J., Synnes, A., & Innis, S. M.
Affiliations
University of British Columbia (CA)
Venue
Pediatric Research
Published
1992-04
Volume
31
Issue
4
Pages
396-400
ISSN
  • 0031-3998 (ISSN-L)
  • 1530-0447
OpenAlex
W2021359340
Cited by
13
References
35
Citations by year
2023: 1 · 2021: 2 · 2018: 1 · 2014: 1
FWCI
1.42
Type
journal article
Language
en
Open access
closed
Locations
  • Pediatric Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
BC Children's Hospital
Topics
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
Keywords
serum cholesterol, lathosterol, term infants, neonatal period, cholesterol biosynthesis, breastfeeding, infant formula, apolipoprotein B, apolipoprotein A-I, diurnal cycle, cholestyramine, hypercholesterolemia
MeSH terms
Adult, Apolipoproteins, Breast Feeding, Cholesterol, Female, Homeostasis, Humans, Infant Food, Infant, Newborn, Isomerism, Male

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