Neonatal programming of neuroimmunomodulation--role of adipocytokines and neuropeptides

E G de Moura1, P C Lisboa, M C F Passos

  • 1Departamento de Ciências Fisiológicas, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brasil. egberto@pq.cnpq.br

Neuroimmunomodulation
|September 11, 2008
PubMed

Insights

Early life nutrition and stress can epigenetically program organisms, creating a thrifty phenotype. This programming, particularly involving hormones like leptin, can increase the risk of metabolic diseases and affect neuroimmunomodulation later in life.

Area of Science:

  • Epigenetics
  • Developmental Biology
  • Metabolic Health

Background:

  • Programming is an epigenetic process where early-life factors like nutrition and stress shape development.
  • This adaptive mechanism, selected for survival in harsh conditions, results in a 'thrifty phenotype'.
  • Individuals with this phenotype are susceptible to metabolic diseases when nutrients become abundant.

Purpose of the Study:

  • To explore how maternal and neonatal hormonal and metabolic changes during critical periods can program neuroimmunomodulatory effects.
  • To investigate the role of specific hormones (thyroid hormones, leptin, insulin, glucocorticoids, prolactin) as imprinting factors.
  • To understand the impact of these programmed changes on body weight, composition, insulin action, and immune responses.

Main Methods:

  • Review of hormonal and metabolic changes in mothers and neonates.
  • Analysis of how these factors are transferred (e.g., via milk).
  • Discussion of the programming effects of key hormones, with a focus on leptin.

Main Results:

  • Early-life malnutrition can activate genes leading to a thrifty phenotype.
  • Hormonal imprinting during critical periods influences neuroimmunomodulation.
  • Leptin, a cytokine, appears central to these programming events, affecting various physiological systems.

Conclusions:

  • Early-life programming via nutrition and stress has long-term consequences on metabolic and immune health.
  • Hormones like leptin play a crucial role in mediating these programming effects.
  • Understanding these mechanisms is vital for preventing metabolic and inflammatory diseases.

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