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Programming of intermediary metabolism.

C J Petry1, S E Ozanne, C N Hales

  • 1Department of Clinical Biochemistry, Addenbrooke's Hospital, University of Cambridge, Hills Road, Cambridge CB2 2QR, UK.

Molecular and Cellular Endocrinology
|December 12, 2001
PubMed
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Poor early growth in animal models increases adult risk of metabolic syndrome. Obesity exacerbates this risk, supporting the thrifty phenotype hypothesis and revealing metabolic alterations.

Area of Science:

  • Developmental biology
  • Metabolic health
  • Nutritional science

Background:

  • Epidemiological studies suggest a link between poor early growth (fetal and postnatal) and increased risk of metabolic syndrome in adulthood.
  • Adult obesity is recognized as a significant factor exacerbating these risks.

Purpose of the Study:

  • To investigate the mechanisms underlying the association between early growth restriction and adult metabolic dysfunction.
  • To test the 'thrifty phenotype' hypothesis using animal models.

Main Methods:

  • Utilized rat models with reduced fetal and/or preweaning growth induced by a maternal low-protein diet.
  • Offspring were weaned onto either a standard diet or an obesogenic cafeteria diet.
  • Monitored intermediary metabolism in adult offspring.

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Main Results:

  • Early growth restriction in rats led to notable alterations in intermediary metabolism.
  • These metabolic changes provide evidence supporting the 'thrifty phenotype' hypothesis.
  • The findings offer insights into the mechanistic pathways linking early development to adult metabolic health.

Conclusions:

  • Early life growth restriction, particularly when followed by an obesogenic environment, primes individuals for metabolic disturbances.
  • The 'thrifty phenotype' hypothesis provides a valid framework for understanding these long-term health consequences.
  • Further research into intermediary metabolism can elucidate specific mechanisms of metabolic syndrome development.